CN101900227B - Ceramics particle strengthened composite material lining metal tube and manufacturing method thereof - Google Patents
Ceramics particle strengthened composite material lining metal tube and manufacturing method thereof Download PDFInfo
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- CN101900227B CN101900227B CN201010120038.4A CN201010120038A CN101900227B CN 101900227 B CN101900227 B CN 101900227B CN 201010120038 A CN201010120038 A CN 201010120038A CN 101900227 B CN101900227 B CN 101900227B
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Abstract
The invention discloses a ceramics particle strengthened composite material lining metal tube and a manufacturing method thereof, belonging to the field of composite wear-resistant tubes. 4,4-Diphenylmethane diisocyanate (MDI), polyester glycol, 1,4-butanediol (BD), ceramics particles and the like serve as raw materials to prepare composite material liquid castables, and a centrifugal casting technology is adopted to cast polyurethane base ceramics particle strengthened composite material lining layers on the inner wall of an outer thimble. The invention has the beneficial effect that the prepared ceramics particle strengthened composite material lining metal tube has excellent abrasive resistance and corrosion-resistance and greatly improves service life. The raw materials of the invention are easy to be obtained, manufacturing technology is simple, cost is low and economic benefit is obvious and practical application and mass production are beneficial for factories.
Description
Technical field
The present invention relates to a kind of composite wear-resistant tube.Specifically a kind of ceramics particle strengthened composite material lining metal tube and manufacture method thereof.Be particularly related to the manufacturing process of the metal tube using polyurethane-base ceramic particle composite material as inside liner.
Background technique
In the various industry fields such as mining, metallurgy, have that the such as pit backfill of many processes, mineral transport, waste disposal, the husky mud of excavation, clean ore, transport coal ash etc. and all need the slurry of carrying a large amount of solid materials or solid-liquid to mix at a distance, the bulk that these materials or slurry contain a large amount of high hardness or granular solids, therefore corresponding conveyance conduit is faced with serious wear problem.In these commercial Application, not only require that conveyance conduit intensity is high, good toughness, also need to improve as far as possible the wear-resisting property of pipeline.Pipeline wear-resisting property prepared by single metal material improves very limited, and therefore, NEW TYPE OF COMPOSITE inner liner metal pipeline, is one of measure solving pipeline wear resistance and good workability.Recent domestic person skilled has been carried out large quantity research and innovation in this field.
Domestic patent of invention CN1072007 has proposed a kind of wear-and corrosion-resistant composite steel pipe and manufacture method thereof of cast stone liner, its feature is to fix one deck in common steel tube and mixes the liner that cohesiveencess is good, flexible has anticorrosion antiwear cementitious matter forms taking the high cast stone material of wear-resistance and anti-corrosion performance as base-material, has improved the wear-resisting and anticorrosive property of pipeline.Its defect is that cast stone liner pipeline is comparatively heavy, and transport and installation are all more difficult; And cast stone liner easy breaking releasing in the time that pipeline is subject to STRESS VARIATION more violent.
Domestic utility model patent CN201225460 has proposed a kind of stupalith inner liner abrasive resistant pipeline, its feature is that liner is whole ceramic tube, between internal lining pipe and outer sleeve, be provided with the packing layer being formed by heatproof glue and thermal insulating filling, the wear-resistant and decay resistance of pipeline is significantly strengthened.Its defect is that the preparation process of Ceramic Lined Pipes Made is very complicated, with high costs; And stupalith fragility is large, easily there is " avalanche type " and come off, rupture; Under high-temperature condition due to outer sleeve and internal lining pipe difference of thermal expansion coefficients very large, the as easy as rolling off a log inner and outer pipes that causes comes off.
Domestic patent of invention CN2219411 has proposed a kind of bimetal composite wear resistant tube, and its feature is that inside liner adopts cast iron materials, has good wear-resisting property and toughness and tenacity, and internal and external layer material structure is close, and thermal compatibility is good, long service life.Its shortcoming is that compound lining thickness is large, and liner and outer wall are difficult for realizing metallurgy combination, and in corrosive atmosphere, corrosive liquid easily makes pipe outer wall corrode and leak fast by gap.
U.S. patent of invention US4101623 has proposed a kind of abrasion-proof pipe manufacture method of thermosetting plastics as inside liner that adopt, and has more effectively improved the wear-resisting property of pipeline, and has reduced manufacture cost.Its defect is that thermosetting plastics decay resistance is poor, and easy ageing failure; Combination force between plastics and steel pipe is lower, easily deforms and comes off.
Although above-mentioned multiple tube has improved the abrasion condition of conventional metals pipeline in conveying material process in various degree, all have and be difficult to separately the defect that overcomes.
Summary of the invention
The present invention aims to provide a kind of ceramic particle reinforced composite liner metal tube and manufacturing process thereof, and the feature of prepared ceramic particle reinforced composite liner metal tube is to have higher wear resistance and longer working life.
The technical solution adopted for the present invention to solve the technical problems is: a kind of ceramics particle strengthened composite material lining metal tube, formed by outer sleeve and inside liner, and outer sleeve is the metal tube of alloy steel pipe or other types; Inside liner is that polyurethane-base ceramic particle composite material liquid pouring material is poured on outer sleeve inner wall to the ceramics particle strengthened composite material obtaining after solidifying; Matrix as the ceramics particle strengthened composite material of inside liner is urethane rubber material, and reinforcing phase is ceramic particle; Also be coated with the rubber-metal Bond for improving the combination force between composite material as liner layer and metal jacket pipe at outer sleeve inner wall; Described polyurethane-base ceramic particle composite material liquid pouring material uses following materials and methods to make: by 4,4 '-'-diphenylmethane diisocyanate and polyester-diol are as performed polymer, 1,4-butyleneglycol is as chain extender, ceramic particle is as reinforcing phase, be mixed to form liquid pouring material under certain condition, concrete grammar is:
A, the ceramic particle of 100～300 object alumina particles, quartz sand particle or other kinds is mixed by grain composition, clean up rear dry, stand-by with acetone soln;
B, the aqueous solution that is 5% with silane coupler preparation mass fraction are as the pretreatment fluid of ceramic particle;
C, ceramic particle dried in step a is immersed in the pretreatment fluid preparing in step b, stir and filter out liquid after 0.5～2 hour, at 110 DEG C, dry stand-by;
D, employing 4, the mixture of 4 '-'-diphenylmethane diisocyanate and polyester-diol is as performed polymer, ready ceramic particle in poly-step c immersed in performed polymer and stirred 0.5～2 hour, make fully to mix, obtaining polyurethane-base ceramic particle composite material premixed liquid;
E, BDO added in steps d in gained premixed liquid and stirred by proportioning, making polyurethane-base ceramic particle composite material liquid pouring material.
The manufacture method of above-mentioned ceramics particle strengthened composite material lining metal tube, is poured into polyurethane-base ceramic particle composite material liquid pouring material on outer sleeve inner wall, after solidifying at a certain temperature, obtains, and concrete steps are as follows:
F, evenly smear commercial rubber-metal bonding agent at outer sleeve inner wall, improve the combination force between composite material as liner layer and overcoat metal tube with this;
G, outer sleeve is placed on four cylinders in large-scale baker, wherein has a cylinder to keep the rotating speed of 200～500 revs/min, other cylinder is in driven state;
H, adjusting baker atmosphere temperature are also incubated 0.5～2 hour, and outer sleeve temperature is reached within the scope of 80 DEG C～120 DEG C;
I, the cast pipeline that a below is had to narrow groove vertically stretch in outer sleeve along outer sleeve central axis;
J, ready liquid pouring material in polyurethane-base ceramic particle composite material liquid pouring preparation method for material step e is slotted below pipeline and extruded from cast under certain pressure, and be cast on outer sleeve inner wall, after liquid pouring material contact tube wall, in 2～20 minutes, be that gelation becomes solid-state;
K, along with constantly the extruding and the rotation of outer sleeve of castable, outer sleeve inner wall forms vertically and all polyurethane-base ceramic particle composite material solid gel layers comparatively uniformly of circumferential thickness gradually;
L, gel layer thickness reach expects while requirement, stops passing into liquid pouring material, and withdraws from cast pipeline;
M, 1～2 hour back roll of casting complete stop operating, at 100 DEG C～110 DEG C, continue insulation and within 3 DEG C～30 DEG C hours, make gel layer continue sulfuration, finally solidify to form completely and there is the very solid-state inside liner of polyurethane-base ceramic particle composite material of high wear resistance and abrasion-resistance.
The solidifying temperature of described ceramics particle strengthened composite material liquid pouring material is 100 DEG C～110 DEG C, and be 3～30 hours curing time.
The shore hardness A of described ceramics particle strengthened composite material lining metal tube composite material as liner layer is 50～120.
In the manufacture method of described ceramics particle strengthened composite material lining metal tube by adjusting injection pressure and the drum rotation speed of castable and adjusting the thickness of composite material as liner layer pouring time.
In above-mentioned manufacture process, adjust injection pressure, drum rotation speed and the pouring time of castable, can adjust the thickness of composite material as liner layer; Using the silane coupler aqueous solution to carry out pretreated object to ceramic particle is to improve the combination force of ceramic particle and polyurethane matrix, then improves intensity and the wear resistance of composite material; Because at room temperature viscosity meeting of the liquid pouring material preparing in polyurethane-base ceramic particle composite material liquid pouring preparation method for material step e slowly increases so that finally cannot pour into a mould, therefore should after preparing, carry out as early as possible pouring operation, and control each amount of preparation.
The present invention has following advantage compared to existing technology:
A. inside liner adopts polyurethane-base ceramic particle composite material, and its wear resistance compares other inside liner materials with corrosion resistance and single polyurethane material has very large lifting, and pipeline is improved working life;
B. in inside liner composite material, polyurethane matrix adopts 4, and 4 '-'-diphenylmethane diisocyanate (MDI) system is used BDO (BD) as chain extender, and production process Raw volatility and toxicity are all very little;
C. between inside liner and metal pipe internal wall, improve combination force by rubber-metal bonding agent, improved the poor defect of prior art interface binding power;
The cast pipeline of d. slotting by below is poured into a mould, and has improved the inside liner thickness defect of skewness vertically in prior art casting process;
E. this invention raw material is easy to get, and manufacturing process is simple, and cost is lower, is convenient to factory's practical application and batch production, remarkable in economical benefits.
The invention has the beneficial effects as follows: by introduce polyurethane-base ceramic particle composite material inside liner in metallic conduit, greatly improved wear resistance and the working life of metallic conduit.
Brief description of the drawings
Fig. 1 is the process flow diagram of preparing polyurethane-base ceramic particle composite material liquid pouring material;
Fig. 2 is the process flow diagram of preparing polyurethane-base ceramic particle composite material liner metal tube;
Fig. 3 is the schematic diagram of ceramics particle strengthened composite material lining metal tube structure and casting process thereof;
Fig. 4 is the A-A sectional drawing of Fig. 3.
In figure: 1, outer sleeve, 2, inside liner, 3, liquid pouring material, 4, cast pipeline, 5, cylinder.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment one
With reference to accompanying drawing 1, weigh the industrial oxidation alumina particles of 180 object 50kg, immerse and contain in the aqueous solution that KH-550 type silane coupler mass fraction is 5%, stir and filter and dry after 1 hour; By 1000 part 4; the mixture of 4 '-'-diphenylmethane diisocyanate (MDI) and 500 parts of polyester-diols is as base polyurethane prepolymer for use as; mix with the pretreated alumina particle of above-mentioned process; stir and add again 80 part 1 after 2 hours; 4-butyleneglycol (BD), makes polyurethane liquid pouring material after stirring.
With reference to Fig. 2, Fig. 3 and Fig. 4, the manufacture of composite material lining metal tube: be first the even brushing one deck of inwall rubber-metal Bond of outer sleeve 1 at stainless-steel seamless pipe, then place it on four cylinders 5 in large-scale baker, one of them cylinder is with the rotational speed of 300 revs/min.In the time that outer steel pipe is heated to 90 DEG C, keep constant temperature, stretch into the slotted cast pipeline 4 in below, liquid pouring material 3 is injected in gate spool road under certain pressure, make liquid pouring material extrude and be attached on outer sleeve 1 inwall along below fluting.
After cast thickness reaches requirement, stop passing into liquid pouring material and withdraw cast pipeline, continue centrifugal rotation and after 1 hour, stop cylinder rotation.Temperature is risen to 120 DEG C and be incubated 20 hours, make the full cure of polyurethane-base ceramic particle composite material, form stable solid-state inside liner 2.
Embodiment two
With reference to accompanying drawing 1, weigh the industrial quartz sand particle 100kg of 300 object, immerse and contain in the aqueous solution that KH-550 type silane coupler mass fraction is 5%, stir and filter and dry after 1 hour; By the M5050 Type Polyurethane Prepolymer of 1000 parts of Liming chemical Insts, (Main Ingredients and Appearance is 4; 4 '-'-diphenylmethane diisocyanate); mix with the pretreated quartz sand particle of above-mentioned process; stir and add again 50 part 1 after 1.5 hours; 4-butyleneglycol (BD), makes polyurethane liquid pouring material after stirring.
Evenly apply stainless-steel seamless pipe inwall with 218 type rubber-metal Bonds of Kai Muluoke (Chemlok) company, then place it on four cylinders in large-scale baker, one of them cylinder is with the rotational speed of 500 revs/min.In the time that outer steel pipe is heated to 100 DEG C, keep constant temperature, stretch into the slotted cast pipeline in below, liquid pouring material is injected in gate spool road under certain pressure, make liquid pouring material extrude and be attached on outer sleeve inner wall along fluting.
After cast thickness reaches requirement, stop passing into liquid pouring material and withdraw cast pipeline, continue centrifugal rotation and after 2 hours, stop cylinder rotation.Continue insulation 48 hours, make the full cure of polyurethane-base ceramic particle composite material, form stable solid-state inside liner.
Claims (4)
1. a ceramics particle strengthened composite material lining metal tube, is made up of outer sleeve and inside liner, and outer sleeve is the metal tube of alloy steel pipe or other types; Inside liner is that polyurethane-base ceramic particle composite material liquid pouring material is poured on outer sleeve inner wall to the ceramics particle strengthened composite material obtaining after solidifying; Matrix as the ceramics particle strengthened composite material of inside liner is urethane rubber material, and reinforcing phase is ceramic particle; Also be coated with the rubber-metal Bond for improving the combination force between composite material as liner layer and metal jacket pipe at outer sleeve inner wall; It is characterized in that: described polyurethane-base ceramic particle composite material liquid pouring material uses following materials and methods to make: by 4,4 '-'-diphenylmethane diisocyanate and polyester-diol are as performed polymer, 1,4-butyleneglycol is as chain extender, ceramic particle is as reinforcing phase, be mixed to form liquid pouring material under certain condition, concrete grammar is:
A, 100～300 object alumina particles, quartz sand particle are mixed by grain composition, clean up rear dry, stand-by with acetone soln;
B, the aqueous solution that is 5% with silane coupler preparation mass fraction are as the pretreatment fluid of ceramic particle;
C, ceramic particle dried in step a is immersed in the pretreatment fluid preparing in step b, stir and filter out liquid after 0.5～2 hour, at 110 DEG C, dry stand-by;
D, employing 4, the mixture of 4 '-'-diphenylmethane diisocyanate and polyester-diol is as performed polymer, ready ceramic particle in poly-step c immersed in performed polymer and stirred 0.5～2 hour, make fully to mix, obtaining polyurethane-base ceramic particle composite material premixed liquid;
E, BDO added in steps d in gained premixed liquid and stirred by proportioning, making polyurethane-base ceramic particle composite material liquid pouring material.
2. the manufacture method of a ceramics particle strengthened composite material lining metal tube claimed in claim 1, it is characterized in that: polyurethane-base ceramic particle composite material liquid pouring material is poured on outer sleeve inner wall, after solidifying at a certain temperature, obtain, concrete steps are as follows:
F, evenly smear commercial rubber-metal bonding agent at outer sleeve inner wall, improve the combination force between composite material as liner layer and overcoat metal tube with this;
G, outer sleeve is placed on four cylinders in large-scale baker, wherein has a cylinder to keep the rotating speed of 200～500 revs/min, other cylinder is in driven state;
H, adjusting baker atmosphere temperature are also incubated 0.5～2 hour, and outer sleeve temperature is reached within the scope of 80 DEG C～120 DEG C;
I, the cast pipeline that a below is had to narrow groove vertically stretch in outer sleeve along outer sleeve central axis;
J, ready liquid pouring material in claim 1 step e slot below pipeline and extruded from cast under certain pressure, and be cast on outer sleeve inner wall, liquid pouring material contacts after tube wall that in 2～20 minutes, to be that gelation becomes solid-state;
K, along with constantly the extruding and the rotation of outer sleeve of castable, outer sleeve inner wall forms vertically and all polyurethane-base ceramic particle composite material solid gel layers comparatively uniformly of circumferential thickness gradually;
L, gel layer thickness reach expects while requirement, stops passing into liquid pouring material, and withdraws from cast pipeline;
M, 1～2 hour back roll of casting complete stop operating, at 100 DEG C～110 DEG C, continue insulation and within 3～30 hours, make gel layer continue sulfuration, finally solidify to form completely and there is the very solid-state inside liner of polyurethane-base ceramic particle composite material of high wear resistance and abrasion-resistance.
3. the manufacture method of ceramics particle strengthened composite material lining metal tube according to claim 2, is characterized in that: the shore hardness A of composite material as liner layer is 50～120.
4. the manufacture method of ceramics particle strengthened composite material lining metal tube according to claim 2, is characterized in that: by adjusting injection pressure and the drum rotation speed of castable and adjusting the thickness of composite material as liner layer pouring time.
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| CN201010120038.4A CN101900227B (en) | 2010-02-09 | 2010-02-09 | Ceramics particle strengthened composite material lining metal tube and manufacturing method thereof |
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| CN201010120038.4A CN101900227B (en) | 2010-02-09 | 2010-02-09 | Ceramics particle strengthened composite material lining metal tube and manufacturing method thereof |
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| CN101900227B true CN101900227B (en) | 2014-09-17 |
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| CN102200204B (en) * | 2011-04-06 | 2013-01-16 | 中国航空工业集团公司北京长城计量测试技术研究所 | Novel high-temperature pipe and manufacturing process thereof |
| CN102814888B (en) * | 2012-08-29 | 2015-04-29 | 广州华工百川科技股份有限公司 | Metal composite delivery pipe with polyurethane elastomer lining and manufacturing method and application of metal composite delivery pipe |
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| CN112589064A (en) * | 2020-12-07 | 2021-04-02 | 海宁萃智智能机器人有限公司 | Centrifugal pipe casting machine and process for integrally forming internal and external enamels of centrifugal cast pipe |
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| CN113334658A (en) * | 2021-06-03 | 2021-09-03 | 焦作市德邦科技有限公司 | Production process of ceramic bead wear-resistant conveying belt |
| CN113524541A (en) * | 2021-07-12 | 2021-10-22 | 扬州金鑫管业有限公司 | Centrifugal casting process and equipment for producing polymer ceramic tube |
| CN113308110A (en) * | 2021-07-20 | 2021-08-27 | 扬州金鑫管业有限公司 | Polyurethane rubber-lined composite pipeline and preparation method thereof |
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