CN101907207A - Internal rib reinforcing outer ripple type plastic twining structured wall pipe and manufacturing method thereof - Google Patents
Internal rib reinforcing outer ripple type plastic twining structured wall pipe and manufacturing method thereof Download PDFInfo
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- CN101907207A CN101907207A CN 201010218818 CN201010218818A CN101907207A CN 101907207 A CN101907207 A CN 101907207A CN 201010218818 CN201010218818 CN 201010218818 CN 201010218818 A CN201010218818 A CN 201010218818A CN 101907207 A CN101907207 A CN 101907207A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/58—Winding and joining, e.g. winding spirally helically
- B29C53/78—Winding and joining, e.g. winding spirally helically using profiled sheets or strips
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/18—Pleated or corrugated hoses
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to an internal rib reinforcing outer ripple type plastic spirally twining structured wall pipe, which comprises a cylindrical surfaced pipe main body and a reinforcing rib wound outside of the pipe main body. The reinforcing rib contains an inner reinforcing rib vertical to the pipe wall, wherein the inner rib divides the reinforcing rib into two parallel hollow cavities. The upper part of the reinforcing rib and the top of the inner rib are both provided with a solid bulge. A method for manufacturing the plastic reinforcing pipe of the invention comprises the steps of: continuously extruding a plastic abnormal strip with two tubular bulges and containing a hollow cavity inside through a first plastic extruder, continuously, regularly, spirally twining the plastic abnormal strip on a formed roller in parallel, at the same time, extruding fused plastic gel in a clearance between adjacent side walls of the spirally wound plastic abnormal strip through a second plastic extruder, rolling two projected tubular cavities corresponding to two sides of the clearances connected by fusing the adjacent plastic abnormal pipe through a rolling wheel which is arranged at the corresponding part on the periphery of the formed roller with a slot structure, forming an outer projected reinforcing rib of the pipe outer wall by fusing the two tubular bulges, and extruding the residual fused gel in the clearance by the rolling wheel so as to form the solid bulge.
Description
Technical field
The present invention relates to a kind of internal rib reinforcing outer ripple type plastic twining structured wall pipe and manufacture method thereof, the outer ripple stiffening rib of this kind tubing includes a strengthening rib vertical with tube wall.
Background technique
In municipal blow-off line was built, for reducing effluent seepage, protection underground water source and soil were not contaminated, promote the use of the large-bore plastics waste pipe in large quantities.Bury ground self-flow type drainage pipe and press in generally bearing for a short time, mainly need to improve the outer extruding force of anti-soil.This just need improve the ring stiffness of tubing on the one hand, improves the pipeclay acting in conjunction by the bonded area that increases tubing and soil, the degree of compaction of strengthening backfill on the other hand, to improve the tubing crushing resistance.Steel band enhanced polyethylene in the market (PE) helical bellows, polyethylene plastic-steel winding waste pipe, two flat walls steel plastic strip water pipe, rigid polyvinyl chloride (PVC-U) steel plastic composite wound pipe etc. all are the ring stiffness that strengthens tubing by the mode of composite steel band.But steel is moulded compound technology and is still waiting problems such as perfect, the corrosion-resistant of steel, makes steel mould the class composite pipe and still have the certain quality potential safety hazard when being used to carry corrosive sewage.
The heavy caliber pure plastic pipe mainly contains polyethylene or corrugated dual-wall hard PVC pipe, rigid polyvinyl chloride finned tube, Reinforced Polypropylene (FRPP) mold pressing pipe, polyethylene spirally enwound structure-wall tubular product A type, polyethylene spirally enwound structure-wall tubular product Type B at present.The axial part section structure of various tube material and tube walls is respectively as a, b, c, d and the e of Fig. 1.
The manufacture method of double-wall corrugated pipe is to extrude inside and outside two-layer concentric tube continuously by molding machine under molten state, just extruded when also uncolled at inner and outer pipes, outer tube is up and down or under the traction and vacuum suction of left and right sides crawler module, form continuous hollow wave mode stiffening rib, and the outer wall of " trough " position of this hollow waveform and interior pipe pressed down at the semi-molten state be connected together, the cooling back forms body.The formed pipe structure thickness of this outer pipe wall hollow waveform stiffening rib can reach 8% of pipe diameter, higher tube wall moment of inertia is arranged, so can improve the ring stiffness of tubing cost-effectively; The corrugated pipe outer surface that also increased of outer wall amasss simultaneously, helps realizing the pipeclay acting in conjunction.But, because of the problem in material adhesive difference or the temperature control does not make the effective welding of internal and external layer (seeing Fig. 1 .a, 1 welding position), after the construction backfill, very easily cause the internal and external layer layering even collapse under the extruding at soil as in process of production.Its manufacturing equipment costs an arm and a leg simultaneously, and the market development space is limited.
The tube wall axial section structure of rigid polyvinyl chloride finned tube and Reinforced Polypropylene (FRPP) mold pressing pipe is basic identical, and respectively as Fig. 1 .b, c, owing to do not form the reinforcing rib structure of hollow, its Economy is poor with the bellows of material when ring stiffness is identical.
Tube wall axial section structure such as Fig. 1 .d of polyethylene spirally enwound structure-wall pipe A type, its manufacture method is to extrude the pipe that section is a rectangle by first extruder earlier, after vacuum water is cold formed, become rectangular tube 2, this rectangular tube is spirally wound on continuously on the circular forming cylinder with shaping pipe diameter correspondence regularly side by side, many little roller bearings that are subjected to the chain wheel drive rotation are housed on the forming cylinder.Meanwhile, constantly in twining the adjacent side gap of rectangular tube, extrudes by spiral side by side the plastics melten gel 3 of fusion again by second extruder, adjacent rectangular tube is under lateral pressure, be welded together mutually by melten gel, and, form continuous hollow wall tubing along with the little roller bearing of rotation rotates continuous back-out the under the promotion that produces axial force.The structural thickness of this tube material and tube wall is decided by the height of the rectangular tube of first extruder institute moulding, because rectangular tube twines after cooling again, the rectangular tube height is big more, then twine difficult more, general rectangle height can only be at about 6% of shaping pipe diameter, the tube wall moment of inertia is with material and poor with the weight bellows, so Economy is also poor with the bellows of material when ring stiffness is identical, its outer wall is that the plane is unfavorable for forming the pipeclay acting in conjunction simultaneously.But this kind pipe structure is stable, equipment is simple, production is easy to control.
The tube wall axial section structure of polyethylene spirally enwound structure-wall tubular product Type B such as Fig. 1 .e, its manufacturing equipment and complicate fabrication process, form by polypropylene pipe 4 outer composite polyethylenes owing to its stiffening rib simultaneously, welding is on tube wall under molten state, cause pipe structure wall moment of inertia little, so especially heavy caliber pipe is when reaching the ring stiffness of equal requirement, and is more less economical than other winding structure wall pipes.
Tube wall axial section structure such as Fig. 2 .a that a kind of spiral winding corrugated pipe is arranged in the market, its manufacture method is to have first extruder to extrude fusion bar plastic sheet material 5 earlier, this sheet material is spirally wound on the circular forming cylinder that many little roller bearings of active rotation are housed continuously regularly side by side, simultaneously extrude corresponding trapezoidal tubulose stiffening rib 6, through the water-cooled Vacuum shaping by another extrusion molding mechanism.With the overlapping the slot position of same spiral canoe cross-pressure each strip plastic sheet neighboring edge on tube wall, trapezoidal tubulose stiffening rib bottom surface is through suitably heating, simultaneously because plastic sheet is in the semi-molten state.Under the rolling of the pinch roller on the trapezoidal square tube, the strip plastic sheet of square tube and two-layer mutual overlap joint fuses together.This outer pipe wall is corrugated to help the pipeclay acting in conjunction.But because its stiffening rib and polyethylene spirally enwound structure tubing Type B are similar, also be to twine behind the cooling and shaping, its structure height can not be too big, so its tube wall moment of inertia is but good slightly than polyethylene spirally enwound structure tubing A type with material and little with the bellows of weight.Maximum problem is the bonding very difficult control of its stiffening rib and tube wall, and is low excessively as strip plastic sheet temperature, then bonding poor; Too high as temperature, the stripe shape plastic sheet then can be difficult to control moulding from the forming cylinder tenesmus.Even finish bonding, the temperature of bar plastic sheet material necessarily is lower than the melten gel of polyethylene spirally enwound structure-wall tubular product A type, so the side of stiffening rib is left slot 7 all the time, cause stress to concentrate, face of weld can progressively be ftractureed by slot when the ambient temperature alternate, easily causes tube wall to separate with stiffening rib and collapses.
The tube wall axial section structure of the winding corrugated pipe that another is traditional such as Fig. 2 .b, the similar polyethylene spirally enwound structure-wall tubular product A of its manufacture method type, different is, and first extruder extrudes is that the both sides, bottom surface respectively have the special-shaped rectangular tube 8 of the suitable shape fin that a mutual welding uses after the vacuum cooling typing, be spirally wound on the forming cylinder, constantly extrude the plastics melten gel 9 of fusion by second extruder again, be welded together through the pinch roller backing to the fin connection part that spiral side by side twines the adjacent correspondence of special-shaped rectangular tube.The weakness of this kind tubing maximum is the weak part (as Fig. 2 .b, 9 welding positions) of welding position at tubing, and face of weld is little, the melten gel amount is few, thereby has reduced the tubing integral bending.
Summary of the invention
The object of the invention provides a kind of new structure form internal rib reinforcing outer ripple type plastic twining structured wall pipe.Another object of the present invention provides the manufacture method of this structural type tubing.
The helical corrugation plastic structure-wall pipe material (as Fig. 3) of new structure form proposed by the invention is by cylndrical surface tube wall 10, with with pipe outer wall all-in-one-piece spiral reinforcing rod 11, stiffening rib 11 includes an enhancing internal-rib 12 vertical with tube wall, the vertical internal-rib 12 that strengthens is divided into two inner cavities arranged side by side 13 with stiffening rib 11, inner cavity 13 by two orthogonal limits 131 and 132 and the two other limit form right-angled trapezium.Two inner chambers 13 of spiral reinforcing rod 11 can also be that two vertical side and hypotenuse are formed right-angled triangle such as Fig. 4 .b, also other difformity such as Fig. 4 .c that can be made up of two right angle sides and various curve.
At the outer top of spiral reinforcing rod 11, the top that strengthens internal-rib 12 can also increase solid projection 14.
The internal rib reinforcing outer ripple type plastic twining structured wall pipe for preparing said structure form of the present invention can be undertaken by extruder and corresponding supplementary equipment that two covers cooperatively interact.At first, the first extrusion molding mechanism cooperates corresponding mould extrusion plastic heterotypic strip (as Fig. 4 .a, b, c, 15), its section be a sheet material connecting two hollow cavities 13 (hollow cavity near base angle, the plastic shaped band outside suitably less than 90 degree, as Fig. 4,151), through the water-cooled Vacuum shaping, make this plastic shaped band be spirally wound on the forming cylinder side by side regularly continuously then, constantly in the plastic shaped band adjacent segment that spiral twines side by side, clamp-on the plastics melten gel of fusion simultaneously by second extruder, through being arranged at the pinch roller of forming cylinder periphery corresponding position place band corresponding recesses structural type, corresponding two the protruding tubular cavities in both sides, adjacent plastic shaped band welding gap are rolled again.Because the tubular cavity of two projectioies of plastic shaped band has up-narrow and down-wide structural type, the grinding pressure of the pinch roller with the groove structure form that adapts is resolved into make fully bonding extruding force of two plastic shaped bands, two tubular lobes of adjacent plastic shaped side edges of strip form the evagination stiffening rib 11 of pipe outer wall after welding, stiffening rib 11 includes enhancing internal-rib 12 and two cavitys 13 perpendicular to tube wall, the side of adjacent plastic shaped band and melten gel are bonding to be integral, form the enhancing internal-rib 12 of stiffening rib 11, the protruding tubular cavity of adjacent plastic shaped side edges of strip forms two cavitys 13 of stiffening rib 11.
The pressing wheel mechanism that is arranged at big forming cylinder periphery corresponding position can be two or more as required, can be by changing the groove structure form on the pinch roller, progressively compress two welded seams between the plastic shaped band, make in the welded seam melten gel the second time during pressurized uncolled sclerosis partly be extruded into the top of stiffening rib 11, rolling under the typing of respective slot on the pinch roller, moulded the solid projection 14 at stiffening rib top.
For the melten gel that guarantees uncolled sclerosis in the seam be subjected to for the second time and after pinch roller when rolling, extrude at top to stiffening rib, the base angle is (as Fig. 4 in the time of should guaranteeing that plastic shaped band is wrapped on the moulding cylinder, 151) suitably less than 90 degree, simultaneously the groove top width of first pinch roller 16 is suitably greater than the bottom width of two protruding tubular cavities of adjacent plastic shaped band, melten gel is the downward wedge of sharp-crested (as Fig. 5 .a when beginning like this, 17 melten gel wedge cross sections), after rolling of first pinch roller 16 finished, the tip of the bottom wedge melten gel of plastic shaped band is the temperature approaching sclerosis in the end slightly because the melten gel amount is few, then when second pinch roller 161 rolls, the groove of pinch roller can make the top of adjacent tubular cavity be close to, make the top melten gel mouth of unnecessary melten gel hardening by cooling never in the seam extrude (as Fig. 5 .b), form solid projection 14.
Said structure form plastic tube of the present invention relatively has following advantage with existing all types of structure-wall pipe materials:
1., the outer ripple that has of structural type of the present invention and the solid projection at crest top thereof, it is long-pending to have improved pipe outer surface, the pipeclay acting in conjunction that forms when it uses is superior to polyethylene spirally enwound structure-wall tubular product A type pipe (being commonly called as Hollow wall tube).Because its structural walls height is big, makes that also more common double-wall corrugated pipe of pipeclay acting in conjunction and winding corrugated pipe are good.
2., its welding is effective, because structural type face of weld of the present invention is greater than the winding structure bellows of all other types, so its welding effect is best in all winding corrugated pipes.And, roll effect through special pinch roller again because the convex portion on its welded seam causes its melten gel amount big, make its welding effect also be superior to Hollow wall tube.
3., the outer ripple that has of structural type of the present invention and the solid projection at crest top thereof, improved the structural walls thickness of tubing, crest height can reach more than 9% of shaping pipe diameter, surpasses double-wall corrugated pipe.The tubing that makes structural type of the present invention can obtain bigger inertia distance during with the material of equivalent, thereby has saved material, is to have best a kind of of Economy in all winding structure wall pipes now.
4., the upright internal rib formations in the middle of the crest of structured wall plastic tubing of the present invention has improved the stability of crest, simultaneously because trough sheet material and disposable the extruding of half crest of both sides, so trough and stiffening rib are mutually one, make winding corrugated pipe stability of the present invention be superior to other winding corrugated pipe and double-wall corrugated pipe.
5., structural type tubing of the present invention, can also be only by the melten gel material modification suitably being increased the method for the Young's modulus of melten gel, the crushing resistance that improves internal-rib increases the ring stiffness of tubing with Economy ground, and can not influence the impact resistance of tubing integral body.
6., winding corrugated pipe of the present invention can be equipped with the die head that adapts, typing cover and complementary pinch roller with common winding structure wall pipe manufacturing mechanism and promptly can produce, equipment investment is little.
Below in conjunction with the accompanying drawing example illustrated, to technological scheme involved in the present invention, technical problem and superiority thereof are described in further detail again, but this should be interpreted as that subject area of the present invention only limits to following example, all technology that realizes based on foregoing of the present invention all belong to scope of the present invention.
Description of drawings:
Fig. 1
A, be the axial part sectioned view of polyethylene or corrugated dual-wall hard PVC pipe;
B, be the axial part sectioned view of rigid polyvinyl chloride finned tube;
C, be that Reinforced Polypropylene (FRPP) mold pressing tubular axis is to part sectioned view;
D, polyethylene spirally enwound structure-wall tubular product A profile shaft are to part sectioned view;
E, the axial part sectioned view of polyethylene spirally enwound structure-wall tubular product Type B;
Fig. 2
A, the axial part sectioned view of a kind of screw thread winding corrugated pipe;
B, the axial part sectioned view of another kind of spiral winding corrugated pipe;
Fig. 3
A kind of embodiment's of internal rib reinforcing outer ripple type plastic twining structured wall pipe of the present invention axial section;
Fig. 4
A kind of plastic shaped belt structure schematic representation of a, internal rib reinforcing outer ripple type plastic twining structured wall pipe of the present invention;
The another kind of plastic shaped belt structure schematic representation of b, internal rib reinforcing outer ripple type plastic twining structured wall pipe of the present invention;
The plastic shaped belt structure schematic representation of other of c, internal rib reinforcing outer ripple type plastic twining structured wall pipe of the present invention;
Fig. 5
Welding sectional drawing when a, plastic shaped band roll at first pinch roller;
Welding sectional drawing when b, plastic shaped band roll at second pinch roller;
Fig. 6
A, preparation internal-rib of the present invention strengthen the equipment situation plan of outer ripple type winding structure wall pipe.
Embodiment
Implementing mode of the present invention can be in conjunction with being further described as Fig. 6, at first first extruder 18 through and its assorted sectional material mould 19, the blank 20 of extruding the molten plastic heterotypic strip is under the traction of tractor 21, by the Vacuum shaping mould 23 in the bosh 22, cooling and shaping is the plastic shaped band 15 that band two tubular lobes in both sides include hollow cavity.Then under the guiding of many little roller bearings 241 that are subjected to the chain wheel drive rotation on tractor 21 and the forming cylinder 24, on the plastic shaped band 15 continuous little roller bearings 241 that are spirally wound on side by side regularly on the forming cylinder 24, the diameter of the corresponding shaping pipe of the diameter of forming cylinder 24.Meanwhile, again by second extruder 25, constantly in spiral winding plastic heterotypic strip adjacent side gap side by side, extrude the plastics melten gel of fusion, and by being arranged at the pinch roller 16 of forming cylinder periphery corresponding position place band corresponding recesses structural type, two hollow tubular projectioies of 161 pairs of adjacent plastic shaped band both sides correspondences roll, because the up-narrow and down-wide structure of tubular lobes, grinding pressure resolves into and makes fully bonding extruding force of two tubular lobes, make the side hollow tubular projection of adjacent plastic shaped band 15 after rolling, fuse into one by the melten gel welding, form the tubing stiffening rib that continuous belts strengthens internal-rib, the bonding melten gel of part is extruded into the stiffening rib top and forms solid projection under the rolling of pinch roller 161 simultaneously.So, continuously produce internal-rib and strengthen outer ripple type winding structure wall pipe along with constantly rotated by the chain wheel drive swing roller.
Claims (5)
1. overall plastic internal rib reinforcing outer ripple type plastic twining structured wall pipe, comprise cylndrical surface tubing body and spiral surrounding stiffening rib in the body outside, stiffening rib includes an enhancing internal-rib perpendicular to tube wall, and this internal-rib is divided into two hollow cavities arranged side by side with stiffening rib.
2. overall plastic internal rib reinforcing outer ripple type plastic twining structured wall pipe as claimed in claim 1 is characterized in that, this tubing is to be formed with the spiral canoe and through the melten gel fusion by the plastic shaped band of two hollow cavities of both sides band.In plastic shaped band winding process, two mutual close tubular lobes fuse the stiffening rib that forms tubing on the adjacent plastic shaped side edges of strip through melten gel, the vertical internal-rib of stiffening rib is formed by two sides and the melten gel fusion of the mutually close tubular lobes hollow cavity of adjacent heterotypic strip, and the interior hollow cavity of its both sides promptly is the mutual close tubular lobes hollow cavity of adjacent heterotypic strip.
3. overall plastic internal rib reinforcing outer ripple type plastic twining structured wall pipe as claimed in claim 1 is characterized in that, two hollow cavities in the stiffening rib can be right-angled triangle, right-angled trapezium or other form, and must be to have up-narrow and down-wide structure.
4. overall plastic internal rib reinforcing outer ripple type plastic twining structured wall pipe as claimed in claim 1 is characterized in that the top of stiffening rib, and solid bulge can be arranged at the top of internal-rib.
5. make overall plastic internal rib reinforcing outer ripple type plastic twining structured wall pipe method as claimed in claim 1, it is characterized in that at first extruding the plastic shaped band 15 that includes hollow cavity with two tubular lobes continuously by first extruder 18, make this plastic shaped band be spirally wound on the forming cylinder side by side regularly continuously then, meanwhile, again by second extruder 25, successively in spiral winding plastic heterotypic strip adjacent side gap side by side, extrude the plastics melten gel of fusion, again through being arranged at the pinch roller of forming cylinder periphery corresponding position place band corresponding recesses structural type, corresponding two the protruding tubular cavities in both sides, adjacent plastic shaped band welding gap are rolled, these two tubular lobes weldings form the evagination stiffening rib of pipe outer wall, unnecessary hot melt adhesive in the welding gap is extruded under the rolling of pinch roller, forms solid projection.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010218818 CN101907207A (en) | 2010-07-06 | 2010-07-06 | Internal rib reinforcing outer ripple type plastic twining structured wall pipe and manufacturing method thereof |
| CN2011201485054U CN202125675U (en) | 2010-07-06 | 2011-05-11 | Strip material for making pipe with inner rib reinforcing outer-corrugation-type plastic winding structure wall |
| CN2011201485196U CN202125676U (en) | 2010-07-06 | 2011-05-11 | External corrugated-type plastic enwound structure-wall tube with reinforced inner fin |
| CN2011201485209U CN202079777U (en) | 2010-07-06 | 2011-05-11 | Pinch roller used for manufacturing wall tubing with enhanced inner ribs and outer corrugated type plastic structure |
| CN 201110121186 CN102305316B (en) | 2010-07-06 | 2011-05-11 | Internal rib-reinforced outer corrugated plastic wound structural wall pipe and manufacturing method thereof |
| PCT/CN2011/074466 WO2012003744A1 (en) | 2010-07-06 | 2011-05-21 | Tubular product with outer corrugated type plastic winding structural walls reinforced with internal ribs and the manufaturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010218818 CN101907207A (en) | 2010-07-06 | 2010-07-06 | Internal rib reinforcing outer ripple type plastic twining structured wall pipe and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101907207A true CN101907207A (en) | 2010-12-08 |
Family
ID=43262742
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010218818 Pending CN101907207A (en) | 2010-07-06 | 2010-07-06 | Internal rib reinforcing outer ripple type plastic twining structured wall pipe and manufacturing method thereof |
| CN 201110121186 Active CN102305316B (en) | 2010-07-06 | 2011-05-11 | Internal rib-reinforced outer corrugated plastic wound structural wall pipe and manufacturing method thereof |
| CN2011201485054U Expired - Lifetime CN202125675U (en) | 2010-07-06 | 2011-05-11 | Strip material for making pipe with inner rib reinforcing outer-corrugation-type plastic winding structure wall |
| CN2011201485196U Expired - Lifetime CN202125676U (en) | 2010-07-06 | 2011-05-11 | External corrugated-type plastic enwound structure-wall tube with reinforced inner fin |
| CN2011201485209U Expired - Lifetime CN202079777U (en) | 2010-07-06 | 2011-05-11 | Pinch roller used for manufacturing wall tubing with enhanced inner ribs and outer corrugated type plastic structure |
Family Applications After (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110121186 Active CN102305316B (en) | 2010-07-06 | 2011-05-11 | Internal rib-reinforced outer corrugated plastic wound structural wall pipe and manufacturing method thereof |
| CN2011201485054U Expired - Lifetime CN202125675U (en) | 2010-07-06 | 2011-05-11 | Strip material for making pipe with inner rib reinforcing outer-corrugation-type plastic winding structure wall |
| CN2011201485196U Expired - Lifetime CN202125676U (en) | 2010-07-06 | 2011-05-11 | External corrugated-type plastic enwound structure-wall tube with reinforced inner fin |
| CN2011201485209U Expired - Lifetime CN202079777U (en) | 2010-07-06 | 2011-05-11 | Pinch roller used for manufacturing wall tubing with enhanced inner ribs and outer corrugated type plastic structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (5) | CN101907207A (en) |
| WO (1) | WO2012003744A1 (en) |
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| WO2012003744A1 (en) * | 2010-07-06 | 2012-01-12 | Dai Aiqing | Tubular product with outer corrugated type plastic winding structural walls reinforced with internal ribs and the manufaturing method thereof |
| CN102689442A (en) * | 2012-06-15 | 2012-09-26 | 广东永高塑业发展有限公司 | Wound corrugated pipe with enhanced inner fin by hollow roller forming and production process of wound corrugated pipe |
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| CN106402515A (en) * | 2016-10-13 | 2017-02-15 | 贵州省盘县益康管业有限责任公司 | Wound inner fin reinforced helical bellows and manufacturing method thereof |
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| CN106870922A (en) * | 2017-04-09 | 2017-06-20 | 贵州枫叶管业有限公司 | A kind of HDPE hollow wall plastic-steel windings |
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| CN107061979A (en) * | 2013-11-28 | 2017-08-18 | 苏州征之魂专利技术服务有限公司 | Differential of the arc type MULTIPLE COMPOSITE strengthens the high-intensity special-shaped material structure of resistance to deformation |
| CN107631103A (en) * | 2017-11-18 | 2018-01-26 | 云南傲远环保科技有限公司 | A kind of steel plastic compount helical bellows with the left rib of reinforcement |
| CN107795768A (en) * | 2017-11-18 | 2018-03-13 | 云南傲远环保科技有限公司 | A kind of steel plastic compount helical bellows with the right rib of reinforcement |
| CN108396898A (en) * | 2018-04-19 | 2018-08-14 | 山东永固绿建科技有限公司 | A kind of production method of inverted trapezoidal rib laminated floor slab |
| CN108506593A (en) * | 2018-05-29 | 2018-09-07 | 凌志环保股份有限公司 | HDPE enhances ripple type plastic wall pipe |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN202079777U (en) | 2011-12-21 |
| CN202125676U (en) | 2012-01-25 |
| WO2012003744A1 (en) | 2012-01-12 |
| CN202125675U (en) | 2012-01-25 |
| CN102305316A (en) | 2012-01-04 |
| CN102305316B (en) | 2013-01-02 |
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