CN105088947A - Manufacturing method for steel wire inhaul cable filled or coated with polyurea protective materials - Google Patents
Manufacturing method for steel wire inhaul cable filled or coated with polyurea protective materials Download PDFInfo
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- CN105088947A CN105088947A CN201510084291.1A CN201510084291A CN105088947A CN 105088947 A CN105088947 A CN 105088947A CN 201510084291 A CN201510084291 A CN 201510084291A CN 105088947 A CN105088947 A CN 105088947A
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Abstract
The invention relates to a manufacturing method for a steel wire inhaul cable filled or coated with polyurea protective materials. The manufacturing method includes the steps that after steel wires are pretreated, steel wire combinations are molded through drying, coiling, wire dividing, polyurea material filling and coalescence, and steel wire inhaul cable bodies Ia or IIa filled or coated with the polyurea protective materials are formed, wherein gaps at the portions, in the middle portions of the n steel wires, between the steel wires are filled with the polyurea materials; the outer layer of the steel wire inhaul cable bodies Ia or IIa is coated with a polyurea protective coating I through the polyurea material extrusion coating working procedure to form steel wire inhaul cable bodies Ib or II b filled or coated with the polyurea protective materials; on the basis of the steel wire inhaul cable bodies of the two structures, the steel wire inhaul cable which has multiple protection layers and is provided with the polyurea protective coatings is formed through one or more of the wrapping and packaging molding working procedure, the PE sleeve extrusion molding working procedures I and II and polyurea material coating working procedures II and III. The steel wire inhaul cable which is manufactured with the method and provided with the polyurea protective coatings is compact in structure and antiseptic, reduces shocks, and is good in skid resistance and abrasive resistance.
Description
Technical field
The present invention relates to a kind of preparation method of drag-line, particularly a kind of preparation method of filling or being coated with the wire digging line of polyurea protection material.
Background technology
Compressor wire drag-line is the stressed member of a kind of key in bridge construction, requires to have higher anti-corrosive durability; Current prestressing force bridge wire digging line is manufactured with reference to standard GB/T/T18365-2001 " cable stayed bridge hot extruded polyethylene high tensile steel wire drag-line technical condition " usually.
The corrosion of compressor wire is the stress corrosion (belonging to couple corrosion category) under stress and corrosion compound action, and be characterized in first forming crackle in metal inside, internal fissure just forms stress after occurring and concentrates, and accelerates the development of crackle, and then produces heavy corrosion.Anticorrosion plating (painting) the layer steel of compressor wire are always on active service under the condition of corrosive medium, by the kind of topping, can be divided into on-metallic protective coating (being called coating), chemical coating and coat of metal (being called coating) three class.1, the nonmetallic coating of nonmetal protective coating prestressing steel mainly contains plastics, epoxy resin and anticorrosion grease three kinds at present, but the anti-aging problem of nonmetallic coating not yet solves, and its mechanical property is much lower compared with the coat of metal.Therefore, range of application is restricted.2, chemical coating is by chemical method, forms topping in metal surface, as the passivation of zinc layers, the oxidation of aluminium lamination, the phosphatization etc. of iron-based.Such topping is not often as single steel topping, but annexs with the coat of metal and use.3, metal coating coating is in couple corrosion, and first the metal being in anode is dissolved, and plates with the metal sprinkled compared with ironwork, as zinc, aluminium etc. in Steel Wire Surface for this reason.In the environment of corrosive medium, making zinc first be protected iron-based by dissolving, being called that anode coating is protected.Because zinc-plated (or Zn-Al alloy) exists " hydrogen embrittlement " phenomenon, reduce the strength grade of steel wire, always controversial.Therefore compressor wire anticorrosion is the significant problem to closing bridge engineering quality life-span, must strengthen truly feasible anti-corrosion measure, the massive losses brought to reduce compressor wire to lose efficacy in advance because corrosion causes for prestressing force steel wire.
Polyurea materials reacts by isocyanate component and amino-compound component a kind of elastomer substances generated, and is divided into pure polyureas and half polyureas, and the most basic characteristic of polyureas is exactly anticorrosion, waterproof, wear-resisting etc., is mostly used in space industry at present.
Therefore, how to be applied in the protection of wire digging line by polyurea materials, making a kind of wire digging line of filling or being coated with polyurea protection material is the technical barrier that prestressing technique drag-line technical field people are badly in need of solving at present.
Summary of the invention
The object of the present invention is to provide a kind of wire digging line preparation method of filling or being coated with polyurea protection material, produce a kind of wire digging line of filling or being coated with polyurea protection material, this band is filled or the wire digging line that is coated with polyurea protection material utilizes the excellent properties of polyurea materials, greatly can improve anticorrosion, the damping of wire digging line, cling property, postpone drag-line application life, to solve the problems referred to above that prior art exists.
For solving the problem, the technical solution used in the present invention is: a kind of preparation method of filling or being coated with the wire digging line of polyurea protection material: described steel wire comprises and is attached with epoxy coating through pretreated bright steel wire or in the periphery of bright steel wire, galvanizing coating, plastic coating, anticorrosion grease coating, the surface attachment coating of oiliness wax or the coat of metal or the anticorrosion steel wire of coating: it is characterized in that: this filling or the preparation method of wire digging line being coated with polyurea protection material are by through pretreated n root bright steel wire or be attached with epoxy coating in the periphery of bright steel wire, galvanizing coating, plastic coating, anticorrosion grease coating, the surface attachment coating of oiliness wax or the coat of metal or the anticorrosion steel wire of coating are through dry, one-tenth dish, sub-wire, after filling polyurea materials, coalescence is molded into steel wire combination body, to be formed in the middle part of n root steel wire gap-fill between each bright steel wire to have the filling of polyurea materials or be coated with wire digging line I a of polyurea protection material, or between the anticorrosion steel wire of n root gap-fill polyurea materials filling or be coated with wire digging line II a of polyurea protection material,
Its key step comprises:
A: carry out pretreatment to steel wire and make qualified steel wire: ordinary steel wire or high tensile steel wire are made into qualified steel wire after pretreatment, comprises bright steel wire or is attached with the surface attachment coating of epoxy coating, galvanizing coating, plastic coating, anticorrosion grease coating, oiliness wax or the coat of metal or the anticorrosion steel wire of coating in the periphery of bright steel wire; Below be referred to as pretreated qualified steel wire or steel wire;
B: dry: to carry out heat drying to pretreated steel wire, removes surface moisture;
C: one-tenth dish: qualified steel wire carries out constant speed traction through caterpillar tractor, enters in the streamline of wire digging line strand system;
D: sub-wire: be placed on several draw drums respectively by several one-tenth dishes steel wire well, steel wire traction go out by draw drum and penetrates a point guide frame, point guide frame has the hole corresponding to steel wire hexagonal array, enters in the disk storage line of wire digging line strand streamline processed;
E: fill polyurea materials: namely one of in the following manner carry out coating type filling:
1. Extrusion Coating is filled: pretreated steel wire is passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray filling: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on pretreated steel wire;
3. soak pumping painting to fill: pretreated steel wire is immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way is filled: utilize machine brushing to make polyurea materials evenly be coated on pretreated steel wire;
F: coalescence is molded into steel wire combination body: by between steel wire, be filled with polyurea coating steel wire by many composing types device shaping for steel wire coalescence; Each shaped device is made up of 2 groups of 3 rolling wheels being mutually 120o angle; By regulating relative position and the thrust of each rolling wheel, make some steel wire strand integers be regular hexagon, in strand, each steel wire abuts against each other, and makes polyurea materials fully be filled in steel wire strand gap; N be more than or equal to 1 integer, described polyurea materials is pure polyurea materials or half polyurea materials.
Its further technical scheme is: by the filling of producing through steps A-F or be coated with polyurea protection material wire digging line I a, II a again through H1: polyurea materials coating operation I: namely pass through
withone of under type:
1. Extrusion Coating: wire digging line I a or II a passes through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on wire digging line I a or II a;
3. pumping painting is soaked: wire digging line I a or II a is immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly be coated on wire digging line I a or II a;
Make filling or be coated with polyurea protection material wire digging line I a, II a outer surface attachment polyurea coating I; Thus form wire digging line I b and filling that fill or be coated with polyurea protection material or wire digging line II b being coated with polyurea protection material.
Its further technical scheme be: the filling middle part of making being filled with polyurea materials or wire digging line I a, II a and the outermost layer that are coated with polyurea protection material are coated with the filling that one deck polyurea protection coating I forms or wire digging line I b, II b being coated with polyurea protection material passes through G again: be wrapped operation, the one deck that is wrapped in the periphery of steel wire combination body is wrapped band, forms wire digging line I a0, II a0 that fill or be coated with polyurea protection material or forms wire digging line I b0, II b0 that fill or be coated with polyurea protection material.
Further: one deck that the periphery at steel wire combination body is wrapped be wrapped filling or wire digging line I a0, II a0 that are coated with polyurea protection material that band forms or be coated with polyurea protection material wire digging line I b0, II b0 again through H2: polyurea materials coating operation II: namely one of in the following manner:
1. Extrusion Coating: wire digging line I a0, II a0, I b0 or II b0 are passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on wire digging line I a0, II a0, I b0 or II b0;
3. pumping painting is soaked: wire digging line I a0, II a0, I b0 or II b0 are immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly be coated on wire digging line I a0, II a0, I b0 or II b0;
Make wire digging line I a0, II a0, I b0 or II b0 outer surface attachment polyurea coating II; Form wire digging line I a0c, II a0c, I b0c or II b0c that fill or be coated with polyurea protection material.
Its again further technical scheme be: the filling that above-mentioned each scheme is produced or the wire digging line being coated with polyurea protection material overlap extrusion molding operation I by I1:PE again or overlap extrusion molding operation I by I1:PE successively and I2:PE overlaps extrusion molding operation II; Be made into skin and have the filling be made up of HDPE sheath or the wire digging line being coated with polyurea protection material, or the filling that forms of the double-deck HDPE sheath to be made up of internal layer HDPE sheath and outer HDPE sheath or the wire digging line that is coated with polyurea protection material, comprising:
1. filling middle part being filled with polyurea materials or wire digging line I a, II a and the outermost layer that are coated with polyurea protection material are coated with the filling that one deck polyurea protection coating I forms or wire digging line I b, II b being coated with polyurea protection material and overlap extrusion molding operation I by I1:PE again or overlap extrusion molding operation I by I1:PE successively and I2:PE overlaps extrusion molding operation II; Be made into skin and have the filling be made up of HDPE sheath or wire digging line I a1, II a1, I b1, II b1 that are coated with polyurea protection material, or the filling that forms of the double-deck HDPE sheath be made up of internal layer HDPE sheath and outer HDPE sheath or wire digging line I a2, II a2, I b2, II b2 that are coated with polyurea protection material.
2. wire digging line I b0, II b0 that fill or be coated with wire digging line I a0, II a0 of polyurea protection material or filling or be coated with polyurea protection material are overlapped extrusion molding operation I by I1:PE again or overlap extrusion molding operation I by I1:PE successively and I2:PE overlaps extrusion molding operation II; Being made into skin has the filling be made up of HDPE sheath or wire digging line I a01, II a01, I b01, II b01 or the skin being coated with polyurea protection material to have the filling of double-deck HDPE sheath or be coated with wire digging line I a02, II a02 of polyurea protection material, I b02 or II b02.
3. wire digging line I b0c, II b0c that fill or be coated with wire digging line I a0c, II a0c of polyurea protection material or filling or be coated with polyurea protection material are overlapped extrusion molding operation I by I1:PE again or overlap extrusion molding operation I by I1:PE successively and I2:PE overlaps extrusion molding operation II; Being made into skin has the filling be made up of HDPE sheath or wire digging line I a0c1, II a0c1, I b0c1, II b0c1 or the skin being coated with polyurea protection material to have the filling of double-deck HDPE sheath or be coated with wire digging line I a0c2, II a0c2 of polyurea protection material, I b0c2 or II b0c2.
Its more further technical scheme be: will its skin that further technical scheme makes again be adopted to have the filling be made up of HDPE sheath or the wire digging line being coated with polyurea protection material, or the filling that forms of double-deck HDPE sheath be made up of internal layer HDPE sheath and outer HDPE sheath or be coated with polyurea protection material wire digging line again through J: polyurea materials applies operation III: namely one of in the following manner:
1. Extrusion Coating: wire digging line is passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on wire digging line;
3. pumping painting is soaked: wire digging line is immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing that polyurea materials is evenly coated on wire digging line;
By polyurea materials extrusion molding or be sprayed on the skin of drag-line individual layer HDPE sheath or to have the outer HDPE sheath of double-deck HDPE sheath outer, be formed in individual layer HDPE sheath outer HDPE sheath skin coating one deck polyurea protection coating III that is outer or double-deck HDPE sheath and be formed in individual layer HDPE sheath skin and be coated with polyurea protection coating III, there is the filling of multiple protective structure or be coated with the wire digging line of polyurea protection material; Or the outer HDPE sheath skin of double-deck HDPE sheath is also coated with the filling that one deck polyurea protection coating III is formed or the wire digging line being coated with polyurea protection material.
Comprise:
1. skin is had the filling that HDPE sheath is formed or wire digging line I a1, II a1, I b1, II b1 that are coated with polyurea protection material, or the filling that forms of the double-deck HDPE sheath be made up of internal layer HDPE sheath and outer HDPE sheath or wire digging line I a2, II a2 that are coated with polyurea protection material, I b2, II b2 be again through J: polyurea materials coating operation III is formed: be coated with the filling that polyurea protection coating III is formed or wire digging line I a1d, II a1d, I b1d or II b1d that are coated with polyurea protection material at individual layer HDPE sheath skin; Or the outer HDPE sheath skin of double-deck HDPE sheath is also coated with the filling that one deck polyurea protection coating III is formed or wire digging line I a2d, II a2d, I b1d or II b1d that are coated with polyurea protection material.
2. skin there are the filling be made up of HDPE sheath or wire digging line I a01 being coated with polyurea protection material, II a01, I b01, II b01 or skin have the filling of double-deck HDPE sheath or are coated with wire digging line I a02 of polyurea protection material, II a02, I b02 or II b02 is again through J: polyurea materials coating operation III: be formed in individual layer HDPE sheath outer HDPE sheath skin that is outer or double-deck HDPE sheath and apply being coated with the filling of polyurea protection coating III at individual layer HDPE sheath skin or being coated with wire digging line I a01d of polyurea protection material of one deck polyurea protection coating III formation, II a01d, I b01d, II b01d or be also coated with the filling that one deck polyurea protection coating III is formed or wire digging line I a02d being coated with polyurea protection material at the outer HDPE sheath skin of double-deck HDPE sheath, II a02d, I b02d, II b02d.
3. skin there are the filling be made up of HDPE sheath or wire digging line I a0c1 being coated with polyurea protection material, II a0c1, I b0c1, II b0c1 or skin have the filling of double-deck HDPE sheath or are coated with wire digging line I a0c2 of polyurea protection material, II a0c2, I b0c2 or II b0c2 is again through J: what polyurea materials coating operation III outer HDPE sheath skin coating one deck polyurea protection coating III that is outer at individual layer HDPE sheath or double-deck HDPE sheath was formed is coated with the filling of polyurea protection coating III at individual layer HDPE sheath skin or is coated with wire digging line I a0c1d of polyurea protection material, II a0c1d, I b0c1d, the outer HDPE sheath skin of II b0c1d or double-deck HDPE sheath is also coated with the filling that one deck polyurea protection coating III is formed or wire digging line I a0c2d being coated with polyurea protection material, II a0c2d, I b0c2d, II b0c2d.
Owing to taking above technical scheme, a kind of wire digging line preparation method of filling or being coated with polyurea protection material of the present invention solves and how to be applied in the protection of wire digging line by polyurea materials, make the technical barrier of the steel wire of band polyurea protection coating and the wire digging line of band polyurea protection coating, the filling produced or the wire digging line being coated with polyurea protection material have following characteristics and beneficial effect, have good economic benefit.
1. greatly can improve anticorrosion, the damping of wire digging line, cling property, postpone drag-line application life:
Because the filling of the present invention or the wire digging line that is coated with polyurea protection material are the steel wire combination bodies be made up of many steel wires, have following three kinds of primary structure forms, between each bright steel wire of n root steel wire, between gap or the anticorrosion steel wire of n root, gap-fill has polyurea materials to form wire digging line I a or filling that fill or be coated with polyurea protection material or wire digging line II a being coated with polyurea protection material; Be coated with one deck polyurea protection coating at the outermost layer of steel wire combination body and form wire digging line I b or filling that fill or be coated with polyurea protection material or wire digging line II b being coated with polyurea protection material; Or the outermost layer of steel wire combination body have one be wrapped band, the band that is wrapped skin be coated with polyurea protection coating II and form wire digging line I b0c, II b0c that fill or be coated with wire digging line I a0c, II a0c of polyurea protection material or filling or be coated with polyurea protection material; Again by the filling of these three kinds of structures or be coated with polyurea protection material wire digging line based on, extrusion molding operation I, II is overlapped again through PE, polyurea materials is extruded or one or more among spray coating operation II, III operation, forms the wire digging line with the band polyurea protection coating of multiple protective layer; Because polyurea materials has excellent abrasion resistance, impact resistance and damping property, be coated on the Steel Wire Surface of wire digging line matrix, its coating is continuous, fine and close, can accomplish without seam, free of pinholes, moisture content in isolated air and the infiltration of oxygen, the epoxy coating that steel wire and Steel Wire Surface can be protected to be attached with, plastic coating or anticorrosion grease coating are not easily aging, the easy loss of galvanizing coating can be slowed down, be subject to the impact of the local defects such as pin hole, greatly improve the antiseptic power of such wire digging line, and increase its anti-wear performance, extend the application life of wire digging line; Simultaneously polyurea materials has excellent tensile strength, the characteristic such as ageing-resistant, wear-resistant, the damage caused because constructing operation is improper in the manufacturing and installation process can be reduced, not easily produce cracking, obscission, greatly improve the antiseptic power of wire digging line, increase the service life.
2. between compact conformation, steel wire, frictional force is large, strengthens its cling property, and fatigue resistance improves:
The filling of the present invention or be coated with polyurea protection material steel wire gap in be all filled with polyurea materials, its skin is coated with polyurea protection material, because polyurea materials has the physical property of high abrasion, therefore, polyurea coating need not be very thick, when they are formed presstressed reinforcing steel, between each steel wire can in regular hexagon or unfilled corner Hexagonal close arrangement or other forms arrangement, compact conformation, the frictional force of wire digging line can be strengthened, strengthen its cling property; More be conducive to using under the operating mode of Sarasota both sides by out-of-balance force at bridge cable.
3. the present invention can improve the performance of existing coating or coating wire, thus also greatly improves the antiseptic power of wire digging line, and increases its abrasion resistance, extends the application life of wire digging line.
4. preparation method is reasonable, solves and how to be applied in the protection of wire digging line by polyurea materials, make a kind of technical barrier of the wire digging line with polyurea protection coating:
Mode at present for brushing polyureas is that manual brushing and equipment spray, the scope of application is broader place operation, because the external form profile of steel wire is less, manual brushing easily produces and brushes evenly uneven and sagging phenomenon, and conventional equipment spraying equipment is larger, projected area is comparatively large, and comparatively large to the waste of spraying individual wire polyurea materials, more than 90% waste of material falls.Due to polyureas film forming speed quickly, if manual operations is improper, spraying is grasped and inaccurate is waited problems such as then easily causing coating became uneven, apparent out-of-flatness, aberration large.If construction experience lacks, select base treatment agent improper, when basic unit does not reach construction requirement, the phenomenon such as very easily cause polyurea coating foaming, pinprick, layering, bonding loosely.According to above painting way not foot phenomenon, polyurea materials by the concrete grammar of the coated form extruding or spray coating is by the inventive method: by wire digging line one of in the following manner
:
1. Extrusion Coating: by steel wire and wire digging line respectively by the hot-extrudable polyurea materials of extrusion moulding type equipment; By extrusion moulding type equipment, polyurea materials particle good for proportioning is heated, polyurea materials is fully reacted under extrusion moulding type equipment molten condition, wire digging line is passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on wire digging line; Emitted dose is controlled by machine nozzle, be extruded onto Steel Wire Surface uniformly, can effectively control polyureas thick layer, can according to the feature of steel wire small volume, specialized designs researches and develops spraying equipment that is ring-like or little hole nozzle, on the production line of streamline, even application is in Steel Wire Surface, reduces the waste rate of material:
3. pumping painting is soaked: be immersed in carbamide paint by wire digging line by pulling equipment, by outlet ring-type shaping structures after soaking; By pulling equipment drag-line, steel wire and wire digging line are immersed in carbamide paint, by outlet ring-type shaping structures after making it soak, can are evenly coated on wire digging line;
4. machine painting way: polyurea materials is brushed on wire digging line by machine; Utilize machinery equipment automation brushing function that polyurea materials is evenly coated on steel wire and wire digging line.
In the market without the spraying method occurred by extrusion moulding type equipment Extrusion Coating, the spraying of ring-like or aperture, the mode of soaking pumping painting or machine brushing, the change of spraying method, the steel wire of small volume is not only controlled accurately to the thickness of polyureas, and stop the waste of material.
Below, in conjunction with the accompanying drawings and embodiments a kind of technical characteristic of filling or being coated with the wire digging line of polyurea protection material of the present invention is further described.
Accompanying drawing explanation
Fig. 1-1 ~ Fig. 1-10 be the embodiment of the present invention one method produce in the middle part of n root steel wire, be filled with the filling that polyurea materials is formed or the structural representation of wire digging line being coated with polyurea protection material:
Fig. 1-1: the middle part be made up of bright steel wire is filled with the filling that polyurea materials is formed or wire digging line I a being coated with polyurea protection material;
Fig. 1-2: the middle part formed with anticorrosion steel wire is filled with the filling that polyurea materials is formed or wire digging line II a being coated with polyurea protection material;
Fig. 1-3 ~ Fig. 1-4: the skin of steel wire combination body has the filling of an individual layer HDPE sheath formation or is coated with wire digging line I a1, II a1 of polyurea protection material;
Fig. 1-5 ~ Fig. 1-6: the filling that the skin of steel wire combination body has double-layer polyethylene sheath to form or wire digging line I a2, II a2 that are coated with polyurea protection material;
The filling that one deck polyurea protection coating III is formed or wire digging line I a1d, II a1d that are coated with polyurea protection material is coated with outside Fig. 1-7 ~ Fig. 1-8: individual layer HDPE sheath;
Fig. 1-9 ~ Fig. 1-10: outer HDPE sheath 7 skin of double-deck HDPE sheath is also coated with the filling that one deck polyurea protection coating III is formed or wire digging line I a2d, II a2d that are coated with polyurea protection material.
Fig. 2-1 ~ Fig. 2-10 be the embodiment of the present invention two method make be coated with the filling that one deck polyurea protection coating I is formed or the structural representation of wire digging line being coated with polyurea protection material at the outermost layer of steel wire combination body:
Fig. 2-1: be coated with the filling that one deck polyurea protection coating I is formed or wire digging line I b being coated with polyurea protection material at wire digging line I a skin;
Fig. 2-2: be coated with the filling that one deck polyurea protection coating I is formed or wire digging line II b being coated with polyurea protection material at wire digging line I a skin;
Fig. 2-3 ~ Fig. 2-4: the skin of wire digging line I b, II b has the filling of an individual layer HDPE sheath formation or is coated with wire digging line I b1, II b1 of polyurea protection material;
Fig. 2-5 ~ Fig. 2-6: the filling that the skin of steel wire combination body has double-layer polyethylene sheath to form or wire digging line I b2, II b2 that are coated with polyurea protection material;
The filling that one deck polyurea protection coating III is formed or wire digging line I b1d, II b1d that are coated with polyurea protection material is coated with outside Fig. 2-7 ~ Fig. 2-8: individual layer HDPE sheath;
Fig. 2-9 ~ Fig. 2-10: the outer HDPE sheath skin of double-deck HDPE sheath is also coated with the filling that one deck polyurea protection coating III is formed or wire digging line I b2d, II b2d that are coated with polyurea protection material.
Fig. 3-1 ~ Fig. 3-24 is that band that embodiment of the present invention tripartite method is produced is wrapped the structural representation of band or the filling being coated with one deck polyurea protection coating II or having individual layer HDPE sheath or double-deck HDPE sheath to form at the skin of the band that is wrapped at the skin of the band that is wrapped or the wire digging line that is coated with polyurea protection material:
Fig. 3-1 ~ Fig. 3-2: fill or be coated with wire digging line I a0 of polyurea protection material, the structural representation of II a0;
Fig. 3-3 ~ Fig. 3-4: fill or be coated with wire digging line I b0 of polyurea protection material, the structural representation of II b0;
Fig. 3-5 ~ Fig. 3-6: wire digging line I a0, II a0 are wrapped, and band is outer to be coated with the filling of polyurea protection coating II formation or to be coated with wire digging line I a0c of polyurea protection material, the structural representation of II a0c;
Fig. 3-7 ~ Fig. 3-8: wire digging line I b0, II b0 are wrapped, and band is outer to be coated with the filling of polyurea protection coating II formation or to be coated with wire digging line I b0c of polyurea protection material, the structural representation of II b0c;
Fig. 3-9 ~ Fig. 3-10: wire digging line I a0, II a0 be wrapped band outer have individual layer HDPE sheath to form filling or wire digging line I a01 being coated with polyurea protection material, II a01 structural representation;
Fig. 3-11 ~ Fig. 3-12: wire digging line I b0, II b0 be wrapped band outer have individual layer HDPE sheath to form filling or wire digging line I b01 being coated with polyurea protection material, II b01 structural representation;
Fig. 3-13 ~ Fig. 3-14: wire digging line I a0, II a0 be wrapped band outer have double-deck HDPE sheath to form filling or wire digging line I a02 being coated with polyurea protection material, II a02 structural representation;
Fig. 3-15 ~ Fig. 3-16: wire digging line I b0, II b0 be wrapped band outer have double-deck HDPE sheath to form filling or wire digging line I b02 being coated with polyurea protection material, II b02 structural representation.
Fig. 3-17 ~ Fig. 3-18: wire digging line I a0c, II a0c skin has the filling of an individual layer HDPE sheath formation or is coated with wire digging line I a0c1 of polyurea protection material, the structural representation of II a0c1;
Fig. 3-19 ~ Fig. 3-20: wire digging line I b0c, II b0c skin has the filling of an individual layer HDPE sheath formation or is coated with wire digging line I b0c1 of polyurea protection material, the structural representation of II b0c1;
Fig. 3-21 ~ Fig. 3-22: wire digging line I a0c, II a0c skin have double-deck HDPE sheath to form filling or wire digging line I b0c2 being coated with polyurea protection material, II b0c2 structural representation;
Fig. 3-23 ~ Fig. 3-24: wire digging line I b0c, II b0c skin have double-deck HDPE sheath to form filling or wire digging line I a0c2 being coated with polyurea protection material, II a0c2 structural representation.
Fig. 4-1 ~ Fig. 4-16 is that the embodiment of the present invention four directions outermost layer produced of method is coated with the filling of polyurea protection coating III or is coated with the structural representation of wire digging line of polyurea protection material:
Fig. 4-1 ~ Fig. 4-2: the skin of individual layer HDPE sheath of wire digging line I a01, II a01 is coated with the filling of polyurea protection coating III or is coated with wire digging line I a01d of polyurea protection material, the structural representation of II a01d;
Fig. 4-3 ~ Fig. 4-4: the skin of individual layer HDPE sheath of wire digging line I b01, II b01 is coated with the filling of polyurea protection coating III or is coated with wire digging line I b01d of polyurea protection material, the structural representation of II b01d;
Fig. 4-5 ~ Fig. 4-6: the skin of outer HDPE sheath of the double-deck HDPE sheath of wire digging line I a02, II a02 is coated with the filling of polyurea protection coating III or is coated with wire digging line I a02d of polyurea protection material, the structural representation of II a02d;
Fig. 4-7 ~ Fig. 4-8: the skin of outer HDPE sheath of the double-deck HDPE sheath of wire digging line I b02, II b02 is coated with the filling of polyurea protection coating III or is coated with wire digging line I b02d of polyurea protection material, the structural representation of II b02d;
Fig. 4-9 ~ Fig. 4-10: the individual layer HDPE sheath skin of wire digging line I a0c1, II a0c1 is coated with the filling of polyurea protection coating III or is coated with wire digging line I a0c1d of polyurea protection material, the structural representation of II a0c1d;
Fig. 4-11 ~ Fig. 4-12: the individual layer HDPE sheath skin of wire digging line I b0c1, II b0c1 is coated with the filling of polyurea protection coating III or is coated with wire digging line I b0c1d of polyurea protection material, the structural representation of II b0c1d;
Fig. 4-13 ~ Fig. 4-14: the skin of outer HDPE sheath of the double-deck HDPE sheath of wire digging line I a0c2, II a0c2 is coated with the filling of polyurea protection coating III formation or is coated with wire digging line I a0c2d of polyurea protection material, the structural representation of II a0c2d;
Fig. 4-15 ~ Fig. 4-16: the outer HDPE sheath skin of the double-deck HDPE sheath of wire digging line I b0c2, II b0c2 is coated with the filling of polyurea protection coating III formation or is coated with wire digging line I b0c2d of polyurea protection material, the structural representation of II b0c2d.
In figure:
The single bright steel wire of 1-; 2-surface attachment coating or coating; 5-is wrapped band; 6-internal layer HDPE sheath; The outer HDPE sheath of 7-;
31a-polyurea protection coating I; 31b-polyurea protection coating II; 31c-polyurea protection coating III; 32-polyurea materials;
81a-fills or is coated with wire digging line I a of polyurea protection material;
82a-fills or is coated with wire digging line II a of polyurea protection material;
81a1-fills or is coated with wire digging line I a1 of polyurea protection material;
82a1-fills or is coated with wire digging line II a1 of polyurea protection material;
81a2-fills or is coated with wire digging line I a2 of polyurea protection material;
82a2-fills or is coated with wire digging line II a2 of polyurea protection material;
81a1d-fills or is coated with wire digging line I a1d of polyurea protection material;
82a1d-fills or is coated with wire digging line II a1d of polyurea protection material;
81a2d-fills or is coated with wire digging line I a2d of polyurea protection material;
82a2d-fills or is coated with wire digging line II a2d of polyurea protection material.
81b-fills or is coated with wire digging line I b of polyurea protection material;
82b-fills or is coated with wire digging line II b of polyurea protection material;
81b1-fills or is coated with wire digging line I b1 of polyurea protection material;
82b1-fills or is coated with wire digging line II b1 of polyurea protection material;
81b2-fills or is coated with wire digging line I b2 of polyurea protection material;
82b2-fills or is coated with wire digging line II b2 of polyurea protection material;
81b1d-fills or is coated with wire digging line I b1d of polyurea protection material;
82b1d-fills or is coated with wire digging line II b1d of polyurea protection material;
81b2d-fills or is coated with wire digging line I b2d of polyurea protection material;
82b2d-fills or is coated with wire digging line II b2d of polyurea protection material.
81a0-fills or is coated with wire digging line I a0 of polyurea protection material;
82a0-fills or is coated with wire digging line II a0 of polyurea protection material;
81b0-fills or is coated with wire digging line I b0 of polyurea protection material;
82b0-fills or is coated with wire digging line II b0 of polyurea protection material;
81a0c-fills or is coated with wire digging line I a0c of polyurea protection material;
82a0c-fills or is coated with wire digging line II a0c of polyurea protection material;
81b0c-fills or is coated with wire digging line I b0c of polyurea protection material;
82b0c-fills or is coated with wire digging line II b0c of polyurea protection material.
81a01-fills or is coated with wire digging line I a01 of polyurea protection material;
82a01-fills or is coated with wire digging line II a01 of polyurea protection material;
81b01-fills or is coated with wire digging line I b01 of polyurea protection material;
82b01-fills or is coated with wire digging line II b01 of polyurea protection material;
81a02-fills or is coated with wire digging line I a02 of polyurea protection material;
82a02-fills or is coated with wire digging line II a02 of polyurea protection material;
81b02-fills or is coated with wire digging line I b02 of polyurea protection material;
82b02-fills or is coated with wire digging line II b02 of polyurea protection material.
81a0c1-fills or is coated with wire digging line I a0c1 of polyurea protection material;
82a0c1-fills or is coated with wire digging line II a0c1 of polyurea protection material;
81b0c1-fills or is coated with wire digging line I b0c1 of polyurea protection material;
82b0c1-fills or is coated with wire digging line II b0c1 of polyurea protection material;
81a0c2-fills or is coated with wire digging line I a0c2 of polyurea protection material;
82a0c2-fills or is coated with wire digging line II a0c2 of polyurea protection material;
81b0c2-fills or is coated with wire digging line I b0c2 of polyurea protection material;
82b0c2-fills or is coated with wire digging line II b0c2 of polyurea protection material.
81a01d-fills or is coated with wire digging line I a01d of polyurea protection material;
82a01d-fills or is coated with wire digging line II a01d of polyurea protection material;
81b01d-fills or is coated with wire digging line I b01d of polyurea protection material;
82b01d-fills or is coated with wire digging line II b01d of polyurea protection material;
81a02d-fills or is coated with wire digging line I a02d of polyurea protection material;
82a02d-fills or is coated with wire digging line II a02d of polyurea protection material;
81b02d-fills or is coated with wire digging line I b02d of polyurea protection material;
82b02d-fills or is coated with wire digging line II b02d of polyurea protection material.
81a0c1d-fills or is coated with wire digging line I a0c1d of polyurea protection material;
82a0c1d-fills or is coated with wire digging line II a0c1d of polyurea protection material;
81b0c1d-fills or is coated with wire digging line I b0c1d of polyurea protection material;
82b0c1d-fills or is coated with wire digging line II b0c1d of polyurea protection material;
81a0c2d-fills or is coated with wire digging line I a0c2d of polyurea protection material;
82a0c2d-fills or is coated with wire digging line II a0c2d of polyurea protection material;
81b0c2d-fills or is coated with wire digging line I b0c2d of polyurea protection material;
82b0c2d-fills or is coated with wire digging line II b0c2d of polyurea protection material.
Detailed description of the invention
A kind of preparation method of filling or being coated with the wire digging line of polyurea protection material of the present invention, described steel wire comprises through pretreated bright steel wire or is attached with the surface attachment coating of epoxy coating, galvanizing coating, plastic coating, anticorrosion grease coating, oiliness wax or the coat of metal or the anticorrosion steel wire of coating 2 in the periphery of bright steel wire 1; The key step of its preparation method comprises:
A: carry out pretreatment to steel wire and make qualified steel wire: ordinary steel wire or high tensile steel wire are made into qualified steel wire after pretreatment, comprises bright steel wire or is attached with the surface attachment coating of epoxy coating, galvanizing coating, plastic coating, anticorrosion grease coating, oiliness wax or the coat of metal or the anticorrosion steel wire of coating 2 in the periphery of bright steel wire 1; Below be referred to as pretreated qualified steel wire or steel wire;
B: dry: to carry out heat drying to pretreated steel wire, removes surface moisture;
C: one-tenth dish: qualified steel wire carries out constant speed traction through caterpillar tractor, enters in the streamline of wire digging line strand system;
D: sub-wire: be placed on several draw drums respectively by several one-tenth dishes steel wire well, steel wire traction go out by draw drum and penetrates a point guide frame, point guide frame has the hole corresponding to steel wire hexagonal array, enters in the disk storage line of wire digging line strand streamline processed;
E: fill polyurea materials: namely one of in the following manner carry out coating type filling:
1. Extrusion Coating is filled: pretreated steel wire is passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray filling: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on pretreated steel wire;
3. soak pumping painting to fill: pretreated steel wire is immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way is filled: utilize machine brushing to make polyurea materials evenly be coated on pretreated steel wire;
F: coalescence is molded into steel wire combination body: by between steel wire, be filled with polyurea coating steel wire by many composing types device shaping for steel wire coalescence; Each shaped device is made up of 2 groups of 3 rolling wheels being mutually 120o angle; By regulating relative position and the thrust of each rolling wheel, make some steel wire strand integers be regular hexagon, in strand, each steel wire abuts against each other, and makes polyurea materials fully be filled in steel wire strand gap;
G: be wrapped: wrapped with sizing binder; To improve the tensile strength of wire digging line, elongation per unit length and elastic restoration ratio further, ensure strand on wrapped in dish, transport and work progress, binding strap not easily produces fracture damage;
One of H1: polyurea materials coating operation I: in the following manner:
1. Extrusion Coating: wire digging line passes through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on wire digging line;
3. pumping painting is soaked: wire digging line is immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing that polyurea materials is evenly coated on wire digging line; Steel wire combination body wire digging line outer surface is made to adhere to polyurea coating;
One of H2: polyurea materials coating operation II: in the following manner:
1. Extrusion Coating: wire digging line passes through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on wire digging line;
3. pumping painting is soaked: wire digging line is immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing that polyurea materials is evenly coated on wire digging line; Wire digging line outer surface is made to adhere to polyurea coating;
I1:PE overlaps extrusion molding operation I: by extrusion moulding type equipment by high-density polyethylene plastics extrusion molding at hawser volume surrounding, form monolayer polyethylene sheath;
I2:PE overlaps extrusion molding operation II: had by high-density polyethylene plastics extrusion molding the wire digging line cable body of the band polyurea protection coating of individual layer HDPE sheath outer at skin by extrusion moulding type equipment, form outer HDPE sheath, form the wire digging line of the band polyurea protection coating with inside and outside two-layer HDPE sheath;
One of J: polyurea materials coating operation III: in the following manner:
1. Extrusion Coating: wire digging line passes through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on wire digging line;
3. pumping painting is soaked: wire digging line is immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing that polyurea materials is evenly coated on wire digging line; Drag-line individual layer HDPE sheath skin or to have the outer HDPE sheath of double-deck HDPE sheath outer, be formed in the wire digging line that individual layer HDPE sheath outer HDPE sheath skin that is outer or double-deck HDPE sheath is coated with the band polyurea protection coating of polyurea protection coating III.
A: pretreated step following (to make anticorrosion steel wire) is carried out to steel wire:
A1: close inspection is carried out to steel wire, the pollutants such as oil, fat, paint and its external surface does not have, are explained the deep bid to steel wire by draw drum;
A2: surfacing: adopt phosphoric acid and ultrasonic wave to process individual wire surface, remove the greasy dirt of Steel Wire Surface, dust, rusty stain, and evenly do not allow corrosion-prone grey phosphating coat at individual wire Surface Creation one deck;
A3: dry: to carry out heat drying to steel wire, removes surface moisture;
A4: coating: paint particles is adsorbed on Steel Wire Surface, makes surface attachment coating or the coating of Steel Wire Surface attachment band oxygen coating, galvanizing coating, plastic coating, the coat of metal, anticorrosion grease coating or oiliness wax;
A5: solidification: the individual wire after coating, through surperficial consolidation process, forms dense coating diaphragm separately on individual wire surface;
Make and be attached with the surface attachment coating of epoxy coating, galvanizing coating, plastic coating, anticorrosion grease coating, oiliness wax or the coat of metal or the anticorrosion steel wire of coating 2 through the pretreated periphery at bright steel wire 1;
For common bright steel wire, only need A1, A2 two step, carrying out pretreated method to steel wire is known technology, and step also can increase and decrease, and repeats no more herein.
In actual implementation process; after at least completing A ~ F step, need difference according to construction, above-mentioned whole operations can be adopted; also can select indivedual operations wherein, the formation with multiple protective layer being made into different structure has the wire digging line of the band polyurea protection coating of multiple protective layer.
Embodiment one:
A kind of central filler has the filling of polyurea materials or is coated with the preparation method of wire digging line of polyurea protection material:
Described steel wire comprises through pretreated bright steel wire or is attached with the surface attachment coating of epoxy coating, galvanizing coating, plastic coating, anticorrosion grease coating, oiliness wax or the coat of metal or the anticorrosion steel wire of coating 2 in the periphery of bright steel wire 1:
The preparation method of wire digging line that this central filler of the present embodiment has the filling of polyurea materials or is coated with polyurea protection material is by through pretreated n root bright steel wire or be attached with epoxy coating in the periphery of bright steel wire 1, galvanizing coating, plastic coating, anticorrosion grease coating, the surface attachment coating of oiliness wax or the coat of metal or the anticorrosion steel wire of coating 2 are through dry, one-tenth dish, sub-wire, after filling polyurea materials, coalescence is molded into steel wire combination body, to be formed in the middle part of n root steel wire gap-fill between each bright steel wire to have the filling of polyurea materials or be coated with wire digging line I a (see Fig. 1-1) of polyurea protection material, or gap-fill has the filling of polyurea materials or is coated with wire digging line II a of polyurea protection material between the anticorrosion steel wire of n root, (see Fig. 1-2), in Fig. 1, Fig. 2, n is 19,
Its key step comprises:
A: carry out pretreatment to steel wire and make qualified steel wire: ordinary steel wire or high tensile steel wire are made into qualified steel wire after pretreatment, comprises bright steel wire or is attached with the surface attachment coating of epoxy coating, galvanizing coating, plastic coating, anticorrosion grease coating, oiliness wax or the coat of metal or the anticorrosion steel wire of coating 2 in the periphery of bright steel wire 1; Below be referred to as pretreated qualified steel wire or steel wire;
B: dry: to carry out heat drying to pretreated steel wire, removes surface moisture;
C: one-tenth dish: qualified steel wire carries out constant speed traction through caterpillar tractor, enters in the streamline of wire digging line strand system;
D: sub-wire: be placed on several draw drums respectively by several one-tenth dishes steel wire well, steel wire traction go out by draw drum and penetrates a point guide frame, point guide frame has the hole corresponding to steel wire hexagonal array, enters in the disk storage line of wire digging line strand streamline processed;
E: fill polyurea materials: namely one of in the following manner carry out coating type filling:
1. Extrusion Coating is filled: pretreated steel wire is passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray filling: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on pretreated steel wire;
3. soak pumping painting to fill: pretreated steel wire is immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way is filled: utilize machine brushing to make polyurea materials evenly be coated on pretreated steel wire;
F: coalescence is molded into steel wire combination body: by between steel wire, be filled with polyurea coating steel wire by many composing types device shaping for steel wire coalescence; Each shaped device is made up of 2 groups of 3 rolling wheels being mutually 120o angle; By regulating relative position and the thrust of each rolling wheel, make some steel wire strand integers be regular hexagon, in strand, each steel wire abuts against each other, and polyurea materials is fully filled in steel wire strand gap.
One as the embodiment of the present invention converts, form the bright steel wire 1 of the wire digging line filling or be coated with polyurea protection material or have in bright steel wire surface attachment the radical n of the anticorrosion steel wire of coating or coating 2 can to increase or reduce according to actual needs, be at least 1, many be 7-685 root, in various embodiments of the present invention, adopt 19, the span of general n is: 1≤n≤1500.
As another conversion of the embodiment of the present invention, the filling of producing through A-F or wire digging line I a, II a that are coated with polyurea protection material are overlapped extrusion molding operation I through I1:PE or overlapped extrusion molding operation I by I1:PE successively and I2:PE overlaps extrusion molding operation II again; Be made into skin and have the filling be made up of HDPE sheath 6 or wire digging line I a1, II a1(being coated with polyurea protection material see Fig. 1-3 ~ Fig. 1-4) or the filling be made up of the double-deck HDPE sheath be made up of internal layer HDPE sheath 6 and outer HDPE sheath 7 or be coated with polyurea protection material wire digging line I a2, II a2(see Fig. 1-5 ~ Fig. 1-6).
As another conversion of the embodiment of the present invention, by wire digging line I a2, II a2 that fill or be coated with wire digging line I a1, II a1 of polyurea protection material or filling or be coated with polyurea protection material again through J: polyurea materials coating operation III: form outermost layer and be coated with wire digging line I a1d, II a1d(that are coated with polyurea protection material of polyurea protection coating III see Fig. 1-7 ~ Fig. 1-8) and fill or be coated with polyurea protection material wire digging line I a2d, II a2d(see Fig. 1-9 ~ Fig. 1-10).
Embodiment two:
A kind of outermost layer at steel wire combination body is coated with the filling that one deck polyurea protection coating I is formed or the preparation method of wire digging line being coated with polyurea protection material:
The method be the filling that embodiment one is produced through A-F or wire digging line I a, II a being coated with polyurea protection material again through H1: polyurea materials coating operation I, namely one of in the following manner:
1. Extrusion Coating: wire digging line I a or II a passes through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on wire digging line I a or II a;
3. pumping painting is soaked: wire digging line I a or II a is immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly be coated on wire digging line I a or II a;
Make filling or be coated with wire digging line I a, II a outer surface attachment polyurea coating I 31a of polyurea protection material; Thus form wire digging line I b(that fills or be coated with polyurea protection material see Fig. 2-1) and filling or be coated with polyurea protection material wire digging line II b(see Fig. 2-2).
One as the embodiment of the present invention converts, and the filling of producing through A-F and H1 step or wire digging line I b, II b that are coated with polyurea protection material are overlapped extrusion molding operation I through I1:PE or overlapped extrusion molding operation I by I1:PE successively and I2:PE overlaps extrusion molding operation II again; Be made into wire digging line I b1, II b1(that skin has the filling of individual layer HDPE sheath 6 or be coated with polyurea protection material see Fig. 2-3 ~ Fig. 2-4) or by the double-deck HDPE sheath be made up of internal layer HDPE sheath 6 and outer HDPE sheath 7 filling or be coated with polyurea protection material wire digging line I b2, II b2(see Fig. 2-5 ~ Fig. 2-6).
As another conversion of the embodiment of the present invention, will fill or be coated with wire digging line I b1, II b1 of polyurea protection material or filling or be coated with wire digging line I b2 of polyurea protection material and II b2 again through J: polyurea materials coating operation III: namely one of in the following manner:
1. Extrusion Coating: wire digging line I b1, II b1, I b2 or II b2 are passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on wire digging line I b1, II b1, I b2 or II b2;
3. pumping painting is soaked: wire digging line I b1, II b1, I b2 or II b2 are immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly be coated on wire digging line I b1, II b1, I b2 or II b2;
One deck polyurea protection coating III 31c is coated with at monolayer polyethylene sheath skin, form wire digging line I b1d, II b1d(that fill or be coated with polyurea protection material see Fig. 2-7 ~ Fig. 2-8), or outer HDPE sheath 7 skin of double-deck HDPE sheath is also coated with one deck polyurea protection coating III 31c and forms outermost layer and be coated with the filling of polyurea protection coating III or be coated with wire digging line I b2d of polyurea protection material and II b2d(see Fig. 2-9 ~ Fig. 2-10).
Embodiment three:
Band is wrapped band or be coated with the filling of one deck polyurea protection coating II at the skin of the band that is wrapped or be coated with the preparation method of wire digging line of polyurea protection material:
The method the middle part that embodiment one makes is filled with the filling of polyurea materials or is coated with wire digging line I a of polyurea protection material, the outermost layer that II a and embodiment two make is coated with the filling that one deck polyurea protection coating I is formed or wire digging line I b being coated with polyurea protection material, II b passes through G again: be wrapped operation, the one deck that is wrapped in the periphery of steel wire combination body is wrapped band 5, form wire digging line I a0 filling or be coated with polyurea protection material, II a0(is see Fig. 3-1, Fig. 3-2) or form wire digging line I b0 filling or be coated with polyurea protection material, II b0(is see Fig. 3-3, Fig. 3-4),
The one deck that is wrapped periphery at steel wire combination body is wrapped band 5, forms and fills or be coated with wire digging line I a0, II a0 of polyurea protection material or be coated with wire digging line I b0, II b0 of polyurea protection material; Again through H2: polyurea materials coating operation II: namely one of in the following manner:
1. Extrusion Coating: wire digging line I a0, II a0, I b0 or II b0 are passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on wire digging line I a0, II a0, I b0 or II b0;
3. pumping painting is soaked: wire digging line I a0, II a0, I b0 or II b0 are immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly be coated on wire digging line I a0, II a0, I b0 or II b0;
Wire digging line outer surface is made to adhere to polyurea coating II 31b; Form wire digging line I a0c, II a0c(that fill or be coated with polyurea protection material see Fig. 3-5, Fig. 3-6) or wire digging line I b0c, II b0c(that fill or be coated with polyurea protection material see Fig. 3-7, Fig. 3-8).
As another conversion of the embodiment of the present invention, will through A-F, the filling that G operation is produced or be coated with wire digging line I a0, II a0 of polyurea protection material or the filling of producing through A-F and H1, G operation or wire digging line I b0, II b0 that are coated with polyurea protection material overlaps extrusion molding operation I through I1:PE or overlap extrusion molding operation I by I1:PE successively and I2:PE overlaps extrusion molding operation II again; Be made into wire digging line I b01, II b01(that skin has the filling be made up of HDPE sheath 6 or wire digging line I a01, II a01 being coated with polyurea protection material or filling or be coated with polyurea protection material see Fig. 3-9 ~ Fig. 3-12); Or the filling that is made up of the double-deck HDPE sheath be made up of internal layer HDPE sheath 6 and outer HDPE sheath 7 of skin or wire digging line I a02, II a02 that are coated with polyurea protection material, I b02, II b02(be see Fig. 3-13 ~ Fig. 3-16).
As another conversion of the embodiment of the present invention, the filling of just producing through A-H operation or wire digging line I a0c, II a0c that are coated with polyurea protection material or filling or wire digging line I b0c, II b0c that are coated with polyurea protection material overlap extrusion molding operation I through I1:PE or overlap extrusion molding operation I by I1:PE successively and I2:PE overlaps extrusion molding operation II again; Be made into wire digging line I b0c1, II b0c1(that skin has the filling be made up of HDPE sheath 6 or wire digging line I a0c1, II a0c1 being coated with polyurea protection material or filling or be coated with polyurea protection material see Fig. 3-17 ~ Fig. 3-20); Or the filling to be made up of the double-deck HDPE sheath be made up of internal layer HDPE sheath 6 and outer HDPE sheath 7 or wire digging line I a0c2, II a0c2 that are coated with polyurea protection material, I b0c2, II b0c2(be see Fig. 3-21 ~ Fig. 3-24).
Embodiment four:
Outermost layer is coated with the filling of polyurea protection coating III or is coated with the preparation method of wire digging line of polyurea protection material:
The present embodiment is on the basis of embodiment three, to the outer wire digging line having all kinds of filling of individual layer HDPE sheath or double-deck HDPE sheath or be coated with polyurea protection material of the being wrapped band described in embodiment three again through J: polyurea materials coating operation III: namely one of in the following manner:
1. Extrusion Coating: wire digging line is passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on wire digging line;
3. pumping painting is soaked: wire digging line is immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing that polyurea materials is evenly coated on wire digging line;
Be formed in individual layer HDPE sheath outer HDPE sheath skin coating one deck polyurea protection coating III 31c that is outer or double-deck HDPE sheath to form its outermost layer and be coated with polyurea protection coating III, there is the filling of multiple protective structure or be coated with the wire digging line of polyurea protection material; wherein, have:
As Fig. 4-1 ~ Fig. 4-2: fill or be coated with wire digging line I a01 of polyurea protection material, skin of individual layer HDPE sheath of II a01 be coated with the filling with multiple protective structure of polyurea protection coating III 31c formation or be coated with wire digging line I a01d, II a01d of polyurea protection material;
As Fig. 4-3 ~ Fig. 4-4: fill or be coated with wire digging line I b01 of polyurea protection material, skin of individual layer HDPE sheath of II b01 be coated with the filling with multiple protective structure of polyurea protection coating III 31c formation or be coated with wire digging line I b01d, II b01d of polyurea protection material;
As Fig. 4-5 ~ Fig. 4-6: fill or be coated with wire digging line I a02 of polyurea protection material, skin of outer HDPE sheath 7 of the double-deck HDPE sheath of II a02 be coated with the filling with multiple protective structure of polyurea protection coating III 31c formation or be coated with wire digging line I a02d, II a02d of polyurea protection material;
As Fig. 4-7 ~ Fig. 4-8: fill or be coated with wire digging line I b02 of polyurea protection material, skin of outer HDPE sheath 7 of the double-deck HDPE sheath of II b02 be coated with the filling with multiple protective structure of polyurea protection coating III 31c formation or be coated with wire digging line I b02d, II b02d of polyurea protection material.
As Fig. 4-9 ~ Fig. 4-10: fill or be coated with wire digging line I a0c1 of polyurea protection material, individual layer HDPE sheath 6 skin of II a0c1 is coated with the filling with multiple protective structure that one deck polyurea protection coating III 31c forms or be coated with wire digging line I a0c1d, II a0c1d of polyurea protection material;
As Fig. 4-11 ~ Fig. 4-12: fill or be coated with wire digging line I b0c1 of polyurea protection material, individual layer HDPE sheath 6 skin of II b0c1 is coated with the filling with multiple protective structure that one deck polyurea protection coating III 31c forms or be coated with wire digging line I b0c1d, II b0c1d of polyurea protection material.
As Fig. 4-13 ~ Fig. 4-14: be also coated with the filling with multiple protective structure of III 31c formation of one deck polyurea protection coating at outer HDPE sheath 7 skin of the double-deck HDPE sheath of wire digging line I a0c2, II a0c2 filling or be coated with polyurea protection material or be coated with wire digging line I a0c2d, II a0c2d of polyurea protection material;
As Fig. 4-15 ~ Fig. 4-16: be also coated with the filling with multiple protective structure of III 31c formation of one deck polyurea protection coating at outer HDPE sheath 7 skin of the double-deck HDPE sheath of wire digging line I b0c2, II b0c2 filling or be coated with polyurea protection material or be coated with wire digging line I b0c2d, II b0c2d of polyurea protection material.
Above-described embodiment one ~ embodiment four only lists form of structure and the preparation method of several filling utilizing the inventive method to produce or the wire digging line being coated with polyurea protection material, in the invention process process, can according to the needs of construction, adopt embodiment one method to produce " a kind of middle part is filled with the filling of polyurea materials or is coated with wire digging line I a of polyurea protection material, II a or embodiment two method produce " a kind of outermost layer at steel wire combination body is coated with the filling that one deck polyurea protection coating I is formed or wire digging line I b being coated with polyurea protection material, II b is basic structure, other operations of the inventive method are adopted again on these two kinds of basic structure bases, such as: add the band that is wrapped outside, again in the band outer coating polyurea protection coating II that is wrapped, or on two kinds of basic structure bases, overlap extrusion molding operation I through I1:PE again or be formed in outside by the monolayer polyethylene sheath 6 be made up of HDPE sheath 6 or by the double-deck HDPE sheath be made up of internal layer HDPE sheath 6 and outer HDPE sheath 7 by I1:PE cover extrusion molding operation I and I2:PE cover extrusion molding operation II successively, or again through J: polyurea materials coating operation III, individual layer HDPE sheath 6 outer HDPE sheath 7 skin that is outer or double-deck HDPE sheath making the outer protective polyethylene of the wire digging line of this band polyurea protection coating overlap 6 is also coated with one deck polyurea protection coating III etc., forms various combination, has the filling of multiple protective structure or be coated with the wire digging line of polyurea protection material.
In various embodiments of the present invention, the material of described polyurea protection coating is pure polyurea materials or half polyurea materials; Comprise following three types:
1) aromatic polyureas, this polyureas utilizes aromatic isocyanate (as MDI, liquefied mdi, PAPI etc.) and amino-polyether, amino chain extender to react to form, and has intensity high, the advantages such as price is more reasonable, be useful in anticorrosion, wear-resisting etc. material protection.
2) aliphatic polyurea; this polyureas utilizes aliphatic isocyanates (tripolymer, HMDI, TMXDI etc. as HDI, HDI) and amino-polyether, alicyclic ring amine chain extender to react to prepare; there is color inhibition, good anti-corrosion property energy, excellent unfading etc.; for the decoration finish paint of outdoor architecture, the sealer of aromatic polyureas coating also can be used as.
3) Polyaspartic Polyurea, this polyureas utilizes aliphatic isocyanates and polyaspartic ester reaction preparation, and the reaction speed of coating is adjustable, and gel time can from a few minutes by several hours not etc.Can be used in HTHP impacting type hybird environment, there is not easily foaming in low-temperature setting, coating not yellowing, solidification process, can thick painting construct, to advantages such as the adhesive power of ground are good.
The selection of carbamide paint is determined according to the needs of construction, and involved carbamide paint can be polyurea waterproof coating material, polyurea anti-corrosion coating, polyureas damping coating, polyureas surface coating, polyureas subbing, polyureas filling paint, polyureas wear-resistant paint, polyureas antiskid coating etc.
These are all the materials can bought on the market.
In various embodiments of the present invention; it is the HDPE sheath made for high density polyethylene (HDPE); one as the embodiment of the present invention converts; described HDPE sheath also can be the PE sheath that adopts common low density polyethylene (LDPE), medium density polyethylene to make or other be suitable for making the sheath that the material such as rubber of bridge cable sheath for building etc. makes; these are all substitute equivalents, are also the protection domains of this patent.
Claims (10)
1. fill or be coated with the preparation method of the wire digging line of polyurea protection material for one kind: described steel wire comprises and is attached with epoxy coating through pretreated bright steel wire or in the periphery of bright steel wire (1), galvanizing coating, plastic coating, anticorrosion grease coating, the anticorrosion steel wire of the surface attachment coating of oiliness wax or the coat of metal or coating (2): it is characterized in that: the preparation method of this filling or the wire digging line that is coated with polyurea protection material is attached with epoxy coating by through pretreated n root bright steel wire or in the periphery of bright steel wire (1), galvanizing coating, plastic coating, anticorrosion grease coating, the anticorrosion steel wire of the surface attachment coating of oiliness wax or the coat of metal or coating (2) is through dry, one-tenth dish, sub-wire, after filling polyurea materials, coalescence is molded into steel wire combination body, to be formed in the middle part of n root steel wire gap-fill between each bright steel wire to have the filling of polyurea materials or be coated with wire digging line I a of polyurea protection material, or between the anticorrosion steel wire of n root gap-fill polyurea materials filling or be coated with wire digging line II a of polyurea protection material,
Its key step comprises:
A: carry out pretreatment to steel wire and make qualified steel wire: ordinary steel wire or high tensile steel wire are made into qualified steel wire after pretreatment, comprises bright steel wire or is attached with the surface attachment coating of epoxy coating, galvanizing coating, plastic coating, anticorrosion grease coating, oiliness wax or the coat of metal or the anticorrosion steel wire of coating (2) in the periphery of bright steel wire (1); Below be referred to as pretreated steel wire or steel wire;
B: dry: to carry out heat drying to pretreated steel wire, removes surface moisture;
C: one-tenth dish: qualified steel wire carries out constant speed traction through caterpillar tractor, enters in the streamline of wire digging line strand system;
D: sub-wire: be placed on several draw drums respectively by several one-tenth dishes steel wire well, steel wire traction go out by draw drum and penetrates a point guide frame, point guide frame has the hole corresponding to steel wire hexagonal array, enters in the disk storage line of wire digging line strand streamline processed;
E: fill polyurea materials: namely one of in the following manner carry out coating type filling:
1. Extrusion Coating is filled: pretreated steel wire is passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray filling: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on pretreated steel wire;
3. soak pumping painting to fill: pretreated steel wire is immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way is filled: utilize machine brushing to make polyurea materials evenly be coated on pretreated steel wire;
F: coalescence is molded into steel wire combination body: by between steel wire, be filled with polyurea coating steel wire by many composing types device shaping for steel wire coalescence; Each shaped device is made up of 2 groups of 3 rolling wheels being mutually 120o angle; By regulating relative position and the thrust of each rolling wheel, make some steel wire strand integers be regular hexagon, in strand, each steel wire abuts against each other, and makes polyurea materials fully be filled in steel wire strand gap; N be more than or equal to 1 integer, described polyurea materials is pure polyurea materials or half polyurea materials.
2. a kind of preparation method of filling or being coated with the wire digging line of polyurea protection material according to claim 1, is characterized in that: the filling that claim 1 is produced or be coated with polyurea protection material wire digging line I a, II a again through H1: polyurea materials coating operation I: namely one of in the following manner:
1. Extrusion Coating: wire digging line I a or II a passes through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on wire digging line I a or II a;
3. pumping painting is soaked: wire digging line I a or II a is immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly be coated on wire digging line I a or II a;
Make filling or be coated with polyurea protection material wire digging line I a, II a outer surface attachment polyurea coating I (31a); Thus form wire digging line I b and filling that fill or be coated with polyurea protection material or wire digging line II b being coated with polyurea protection material.
3. a kind of preparation method of filling or being coated with the wire digging line of polyurea protection material according to claim 1 and 2, it is characterized in that: the method is that middle part claim 1 made is filled with the filling of polyurea materials or is coated with wire digging line I a of polyurea protection material, the outermost layer that II a and claim 2 make is coated with the filling that one deck polyurea protection coating I is formed or wire digging line I b being coated with polyurea protection material, II b passes through G again: be wrapped operation, the one deck that is wrapped in the periphery of steel wire combination body is wrapped band (5), form wire digging line I a0 filling or be coated with polyurea protection material, II a0 or formation are filled or are coated with wire digging line I b0 of polyurea protection material, II b0.
4. a kind of preparation method of filling or being coated with the wire digging line of polyurea protection material according to claim 3, it is characterized in that: the filling that claim 3 is made or wire digging line I a0, II a0 that are coated with polyurea protection material or be coated with polyurea protection material wire digging line I b0, II b0 again through H2: polyurea materials coating operation II, namely one of in the following manner:
1. Extrusion Coating: wire digging line I a0, II a0, I b0 or II b0 are passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on wire digging line I a0, II a0, I b0 or II b0;
3. pumping painting is soaked: wire digging line I a0, II a0, I b0 or II b0 are immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly be coated on wire digging line I a0, II a0, I b0 or II b0;
Make wire digging line I a0, II a0, I b0 or II b0 outer surface attachment polyurea coating II (31b); Form wire digging line I a0c, II a0c, I b0c or II b0c that fill or be coated with polyurea protection material.
5. a kind of preparation method of filling or being coated with the wire digging line of polyurea protection material according to claim 1 and 2, it is characterized in that: the method is that middle part claim 1 made is filled with the filling of polyurea materials or is coated with wire digging line I a of polyurea protection material, the outermost layer that II a and claim 2 make is coated with the filling that one deck polyurea protection coating I (31a) is formed or wire digging line I b being coated with polyurea protection material, II b overlaps extrusion molding operation I by I1:PE again or overlaps extrusion molding operation I and I2:PE cover extrusion molding operation II by I1:PE successively, be made into skin and have the filling be made up of HDPE sheath (6) or wire digging line I a1, II a1, I b1, II b1 that are coated with polyurea protection material, or the filling that forms of the double-deck HDPE sheath be made up of internal layer HDPE sheath (6) and outer HDPE sheath (7) or wire digging line I a2, II a2, I b2, II b2 that are coated with polyurea protection material.
6. a kind of preparation method of filling or being coated with the wire digging line of polyurea protection material according to claim 3, is characterized in that: the method is that filling claim 3 made or wire digging line I a0, II a0 being coated with polyurea protection material or filling or wire digging line I b0, II b0 being coated with polyurea protection material overlap extrusion molding operation I by I1:PE again or overlap extrusion molding operation I by I1:PE successively and I2:PE overlaps extrusion molding operation II; Being made into skin has the filling be made up of HDPE sheath (6) or wire digging line I a01, II a01, I b01, II b01 or the skin being coated with polyurea protection material to have the filling of double-deck HDPE sheath or be coated with wire digging line I a02, II a02 of polyurea protection material, I b02 or II b02.
7. a kind of preparation method of filling or being coated with the wire digging line of polyurea protection material according to claim 4, is characterized in that: the method is that filling claim 4 made or wire digging line I a0c, II a0c being coated with polyurea protection material or filling or wire digging line I b0c, II b0c being coated with polyurea protection material overlap extrusion molding operation I by I1:PE again or overlap extrusion molding operation I by I1:PE successively and I2:PE overlaps extrusion molding operation II; Being made into skin has the filling be made up of HDPE sheath (6) or wire digging line I a0c1, II a0c1, I b0c1, II b0c1 or the skin being coated with polyurea protection material to have the filling of double-deck HDPE sheath or be coated with wire digging line I a0c2, II a0c2 of polyurea protection material, I b0c2 or II b0c2.
8. a kind of preparation method of filling or being coated with the wire digging line of polyurea protection material according to claim 5, it is characterized in that: the method is that skin claim 5 made has the filling be made up of HDPE sheath (6) or wire digging line I a1 being coated with polyurea protection material, II a1, I b1, II b1, or the filling that forms of the double-deck HDPE sheath to be made up of internal layer HDPE sheath (6) and outer HDPE sheath (7) or wire digging line I a2 that is coated with polyurea protection material, II a2, I b2, II b2 is again through J: polyurea materials coating operation III: namely one of in the following manner:
1. Extrusion Coating: wire digging line I a1, II a1, I b1, II b1, I a2, II a2, I b2 or II b2 are passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on wire digging line I a1, II a1, I b1, II b1, I a2, II a2, I b2 or II b2;
3. pumping painting is soaked: wire digging line I a1, II a1, I b1, II b1, I a2, II a2, I b2 or II b2 are immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly be coated on wire digging line I a1, II a1, I b1, II b1, I a2, II a2, I b2 or II b2;
Be formed in individual layer HDPE sheath skin coating one deck polyurea protection coating III (31c) formation there is the filling of multiple protective structure or be coated with wire digging line I a1d, II a1d, I b1d or II b1d of polyurea protection material; Or the outer HDPE sheath skin of double-deck HDPE cover is coated with the filling that one deck polyurea protection coating III is formed or wire digging line I a2d, II a2d, I b2d or II b2d that are coated with polyurea protection material.
9. a kind of preparation method of filling or being coated with the wire digging line of polyurea protection material according to claim 6, it is characterized in that: the method is that skin claim 6 made has the filling be made up of HDPE sheath (6) or wire digging line I a01, II a01, I b01, II b01 or the skin being coated with polyurea protection material to have the filling of double-deck HDPE sheath or is coated with wire digging line I a02, II a02 of polyurea protection material, I b02 or II b02 again through J: polyurea materials coating operation III, namely one of in the following manner:
1. Extrusion Coating: wire digging line I a01, II a01, I b01, II b01, I a02, II a02, I b02 or II b02 are passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on wire digging line I a01, II a01, I b01, II b01, I a02, II a02, I b02 or II b02;
3. pumping painting is soaked: wire digging line I a01, II a01, I b01, II b01, I a02, II a02, I b02 or II b02 are immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly be coated on wire digging line I a01, II a01, I b01, II b01, I a02, II a02, I b02 or II b02;
Be formed in coating one deck polyurea protection coating III (31c) filling with multiple protective structure that forms of individual layer HDPE sheath skin or wire digging line I a01d, II a01d, I b01d, II b01d that are coated with polyurea protection material; Or be coated with the filling that one deck polyurea protection coating III is formed or wire digging line I a02d, II a02d, I b02d, II b02d that are coated with polyurea protection material at the outer HDPE sheath skin that double-deck HDPE overlaps.
10. a kind of preparation method of filling or being coated with the wire digging line of polyurea protection material according to claim 7, is characterized in that: the method is that skin claim 7 made has the filling be made up of HDPE sheath (6) or wire digging line I a0c1, II a0c1, I b0c1, II b0c1 or the skin being coated with polyurea protection material to have the filling of double-deck HDPE sheath or is coated with wire digging line I a0c2, II a0c2 of polyurea protection material, I b0c2 or II b0c2 again through J: polyurea materials coating operation III: namely one of in the following manner:
1. Extrusion Coating: wire digging line I a0c1, II a0c1, I b0c1, II b0c1, I a0c2, II a0c2, I b0c2 or II b0c2 are passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on wire digging line I a0c1, II a0c1, I b0c1, II b0c1, I a0c2, II a0c2, I b0c2 or II b0c2;
3. pumping painting is soaked: wire digging line I a0c1, II a0c1, I b0c1, II b0c1, I a0c2, II a0c2, I b0c2 or II b0c2 are immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly be coated on wire digging line I a0c1, II a0c1, I b0c1, II b0c1, I a0c2, II a0c2, I b0c2 or II b0c2;
Be formed in individual layer HDPE sheath (6) skin to be coated with polyurea protection coating III, there is the filling of multiple protective structure or to be coated with the outer HDPE sheath skin that wire digging line I a0c1d, II a0c1d of polyurea protection material, I b0c1d, II b0c1d or double-deck HDPE overlap and be also coated with the filling that one deck polyurea protection coating III is formed or wire digging line I a0c2d, II a0c2d, I b0c2d, II b0c2d that are coated with polyurea protection material.
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