CN202691407U - Macromolecular enhanced composite wear-resistant elbow - Google Patents
Macromolecular enhanced composite wear-resistant elbow Download PDFInfo
- Publication number
- CN202691407U CN202691407U CN2012203426483U CN201220342648U CN202691407U CN 202691407 U CN202691407 U CN 202691407U CN 2012203426483 U CN2012203426483 U CN 2012203426483U CN 201220342648 U CN201220342648 U CN 201220342648U CN 202691407 U CN202691407 U CN 202691407U
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- Prior art keywords
- bend pipe
- elbow
- macromolecule
- fibre reinforced
- carbon fibre
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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
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
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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
- F16L43/00—Bends; Siphons
- F16L43/001—Bends; Siphons made of metal
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a macromolecular enhanced composite wear-resistant elbow, belonging to the field of steel pipes. The macromolecular enhanced composite wear-resistant elbow comprises a wear-resistant steel elbow body and also comprises a glass-fiber or carbon-fiber enhanced macromolecular layer wrapping the outer peripheral surface of the elbow body. The macromolecular enhanced composite wear-resistant elbow disclosed by the utility model has the advantages that the safety problem of the single elbow due to poor toughness is overcome, and when the composite elbow is used in the working condition with the requirements on higher toughness and high impact, safety problem of the elbow due to fracture can be avoided.
Description
Technical field
The utility model belongs to the tubing field, relates in particular to a kind of abrasion-proof bent tube.
Background technique
Pipeline transport is transmitted solid or is contained the pulpous state object of solid in building and the industry extensive use such as mine, and owing to the medium that transmits has the very strong wearing and tearing to pipeline, this requires pipeline need to have high anti-abrasive resistance.The bend pipe and the straight tube that configure such as the pump truck in construction industry, in the transmission during Concrete, with bearing the wearing and tearing of concrete to pipeline, at coal field, the pipeline of transmission coal and all in various degree wearing and tearing that are subject to transmission medium such as pipeline of transmission ore in the mine.Pipeline is divided into straight tube and bend pipe usually.From failure mode, bend pipe is the part that the most easily lost efficacy, and the life-span is the shortest, and the replacement cycle is short, have the call, and such as the pump truck bend pipe, be easily worn part, will change once in the shortest 3 days.
Abrasion-proof bent tube commonly used has: high manganese steel and rich chromium cast iron.High manganese steel is present topmost bend pipe material, it is organized as austenite, this toughness of organizing is high, hardness is low, mainly be applicable to the working condition of high impact loads, high impact can make the austenite of workpiece surface produce work-hardening, thereby improves the wear resistance of workpiece surface, and heart section still keeps soft austenite structure, and the toughness of whole like this workpiece is unaffected.Its last production technology needs high temperature solid solution to process (shrend), makes the whole solid solutions of carbon in austenite, improves its wear resistance.
It is wear-resistant that rich chromium cast iron is that the martensitic structure of the high hardness that has by bend pipe itself is come, and needs to add the alloying element that improves hardenability, and such as noble elements such as Mo, price is high.Be characterized in that hardness is high, toughness is low, is suitable for using under the little working condition of impulsive load, and this steel need to be through quenching and tempering heat treatment, and the manufacture cycle is long.
Thin crystal bainite bend pipe is that grow up on common low-alloy bend pipe basis a kind of has low cost, the low-alloy bend pipe of good combination property.It is organized, and not only crystal grain is tiny, hardness is high, and toughness is also high, and good combination property not only is suitable under the high abrasion condition, and can be used for having the operating mode of certain impact.It is organized as lower bainite.In addition, cost is low, is embodied in two aspects: the one, do not need to add precious alloy element (such as Mo), and the common silicon addition of adding and Mn content is not high (being lower than 5%), and the Mn that high manganese steel adds is up to 13%, so cost is far below high manganese steel and rich chromium cast iron.Traditional Bainitic Steel all will add precious alloy element such as Mo in order to obtain bainite.The 2nd, production technology is simple, adopts austempering, and heat treatment temperature is low, does not need water or oil to cool off, so more environmental protection in the production process.
From making of bend pipe, high manganese steel occupies major part, because its cost higher chromium cast iron bend pipe is low, in addition, and its good toughness, widely applicable.And rich chromium cast iron bend pipe price is high, only uses in the high occasion of wear resistance.Thin crystal bainite bend pipe cost performance is high, and under the actual conditions service condition, wear resistance is respectively 2 times of high manganese steel, 0.9 times of rich chromium cast iron.And cost both had been lower than high manganese steel, significantly was lower than the rich chromium cast iron bend pipe.Embodied stronger competitive advantage in market.
Although the bainite bend pipe of single material is compared good combination property with the bend pipe of other materials, cost performance is also high, but under ask for something high abrasion high tenacity working condition, toughness can not meet the demands fully, tube breaking phenomenon appears in occasional, bring certain potential safety hazard, invented bimetallic tube for this reason.
Double-deck bend pipe under the high abrasion high tenacity working condition only has a kind of low carbon steel and rich chromium cast iron bimetallic tube at present, and namely skin is used ordinary low-carbon steel, utilizes high-plasticity and the high tenacity of this low carbon steel, to remedying the deficiency of internal layer rich chromium cast iron toughness.But because the restriction of processing technology; be not what be closely linked between this bimetallic tube internal layer and the skin, there is the gap in many places, and this can cause the bearing capacity of bimetallic tube to descend; reduce outer field protective action, thereby make the rich chromium cast iron of internal layer can not bear higher impulsive load.
The model utility content
The purpose of this utility model is: propose the composite-curve that a kind of macromolecule strengthens, overcome single bend pipe because the safety problem that the deficiency of toughness is brought, can bear the pressure that bears than ordinary low-carbon steel and rich chromium cast iron bimetallic tube higher, this composite-curve is being used for requiring to guarantee that bend pipe safety problem can not occur because of breaking under the working condition of high tenacity HI high impact more.
The purpose of this utility model realizes by following technical proposals:
A kind of macromolecule strengthens composite abrasion-proof elbow, comprises the bend pipe body, also comprises shrinking or fastening layer of glass fiber or the carbon fibre reinforced high-molecular layer that is coated on described bend pipe body outer circumferential face of injection moulding.
As optimal way, described bend pipe body is Bainitic Steel/iron or rich chromium cast iron bend pipe.
As optimal way, also be wound with one deck clathrum between described bend pipe body and glass or the carbon fibre reinforced high-molecular layer.
As further preferred embodiment, described glass or carbon fibre reinforced high-molecular layer are made of the complete macromolecule thermal shrinkable sleeve that thermal shrinkage is anchored on the bend pipe outer circumferential face.
As further preferred embodiment, described glass or carbon fibre reinforced high-molecular layer are made of the banded thing of macromolecule that winding is anchored on the bend pipe outer circumferential face.
As further preferred embodiment, described glass or carbon fibre reinforced high-molecular layer cover the one coated by high-molecular film that is anchored on the bend pipe outer circumferential face by injection moulding and consist of.
As optimal way, the preferred macromolecular material of above-mentioned clathrum is made, glass fiber material is made or glass enhancing macromolecular material is made.
As optimal way, above-mentioned macromolecule layer, the preferred nylon of macromolecular material, polypropylene, polyimide, polyurethane, high density polyethylene (HDPE) or PVC＝polyvinyl chloride, when glass or carbon fiber strengthen, the preferred 8-40%(mass percent of glass or carbon fiber content).
The beneficial effects of the utility model: in order to improve the toughness of composite-curve integral body, overcome the potential safety hazard that single bend pipe toughness deficiency under than the HI high impact working condition is brought, thereby limited it than the use under the HI high impact condition.The utility model is coated on the bend pipe periphery with macromolecular material, macromolecule is outer combines closely into an organic whole with the internal layer bend pipe, form whole higher toughness, the high wear resistance that has kept again simultaneously bainite or rich chromium cast iron bend pipe, therefore, this composite-curve has overcome single bainite bend pipe or rich chromium cast iron because the safety problem that the deficiency of toughness is brought, owing to combining closely between the compound bend pipe of glass or carbon fibre reinforced high-molecular and Bainitic Steel/iron or rich chromium cast iron, very close to each other, so it is higher to bear the pressure that bears than ordinary low-carbon steel and rich chromium cast iron bimetallic tube.This composite-curve is whole when keeping high wear resistance, is being used for requiring to guarantee that the pump truck bend pipe safety problem can not occur because of breaking under the working condition of high tenacity HI high impact more.
In addition, composite-curve of the present utility model has kept the high wear resistance of bainite bend pipe, utilize again high molecular high-plasticity, in case under the fortuitous event that the bainite bend pipe breaks, the steel disc that the macromolecule skin is avoided breaking scatters, safety in the using process of effective guarantee bend pipe, thereby the Security that improves bend pipe.And middle macromolecule grid can be strengthened the outer high molecular intensity of injection moulding, the Security that further improves composite pipe.
Description of drawings
Fig. 1 is the utility model embodiment 1 sectional view;
Fig. 2 is the sectional view of Fig. 1;
Among the figure, 1 is the bend pipe body, and 2 is clathrum, and 3 is the carbon fibre reinforced high-molecular layer.
Embodiment
Below in conjunction with specific embodiments and the drawings the utility model is further described.
Embodiment 1:
As shown in Figure 1, 2, a kind of macromolecule strengthens composite abrasion-proof elbow, comprises bend pipe body 1, also comprises the fastening one deck carbon fibre reinforced high-molecular layer 3 that is coated on bend pipe body 1 outer circumferential face of injection moulding.Bend pipe body 1 is Bainitic Steel/iron or rich chromium cast iron bend pipe.Also be wound with one deck clathrum 2 between bend pipe body 1 and the carbon fibre reinforced high-molecular layer 3.
Composite pipe and preparation method thereof is as follows:
The carbon fibre reinforced high-molecular layer covers the one enhancing coated by high-molecular film that is anchored on the bend pipe outer circumferential face by injection moulding and consists of.
A, enhancing coated by high-molecular film are preferably the carbon fibre reinforced high-molecular material, macromolecular material can be following a kind of: nylon, polypropylene, polyimide, polyurethane, high density polyethylene (HDPE) or PVC＝polyvinyl chloride, carbon fiber content is the 8-40%(mass percent), surplus is macromolecular material.
B, adopt the method for sandblast or shot-peening to remove bainite or rich chromium cast iron outer surface of bent pipe rusty stain and spot.Bend pipe (can be 275,190.5 and 180 bend pipes, wherein the bend pipe one port central shaft that represents of 275 models be 275mm to the distance of another port end face, and 190.5 and 180 is same), lower with.
C, twine one deck macromolecule grid at bainite or rich chromium cast iron outer surface of bent pipe.
D, bainite or rich chromium cast iron bend pipe (can be 275,190.5 and 180 bend pipes) are put in the mould of injection machine, injection temperature is 140-260 ℃, covers one deck at outer surface of bent pipe and strengthens macromolecule.Strengthen macromolecular material as previously mentioned.
E, the bend pipe after the injection moulding is put into 70-90 ℃ of water soak air cooling after 1 hour.The outer intensity of enhancing macromolecule after compound like this can reach more than the 100MPa specific elongation 10%.
Embodiment 2:
A kind of macromolecule strengthens composite abrasion-proof elbow, comprises the bend pipe body, comprises that also the fastening layer of glass fiber that is coated on bend pipe body outer circumferential face of injection moulding strengthens macromolecule layer.The bend pipe body is Bainitic Steel/iron or rich chromium cast iron bend pipe.Also be wound with one deck clathrum between bend pipe body and the glass enhancing macromolecule layer.
Composite pipe and preparation method thereof is as follows:
Glass strengthens macromolecule layer and is made of the one enhancing coated by high-molecular film that the injection moulding covering is anchored on the bend pipe outer circumferential face.
A, enhancing coated by high-molecular film are preferably glass and strengthen macromolecular material, and macromolecular material can be following a kind of: polyimide, polyurethane, high density polyethylene (HDPE) or PVC＝polyvinyl chloride, glass fiber content are the 8-40%(mass percent), surplus is macromolecular material.
B, adopt the method for sandblast or shot-peening to remove bainite or rich chromium cast iron outer surface of bent pipe rusty stain and spot.
C, twine one deck macromolecule grid at bainite or rich chromium cast iron outer surface of bent pipe.
D, bainite or rich chromium cast iron bend pipe (can be 275,190.5 and 180 bend pipes) are put in the mould of injection machine, injection temperature is 140-260 ℃, covers one deck at outer surface of bent pipe and strengthens macromolecule.Strengthen macromolecular material as previously mentioned.
E, the bend pipe after the injection moulding is put into 70-90 ℃ of water soak air cooling after 1 hour.The outer intensity of enhancing macromolecule after compound like this can reach more than the 100MPa specific elongation 10%.
Embodiment 3:
A kind of macromolecule strengthens composite abrasion-proof elbow, comprises the bend pipe body, also comprises shrinking fastening layer of glass fiber or the carbon fibre reinforced high-molecular layer that is coated on bend pipe body outer circumferential face.The bend pipe body is Bainitic Steel/iron or rich chromium cast iron bend pipe.Further, can also be wound with one deck clathrum between bend pipe body and glass or the carbon fibre reinforced high-molecular layer.
Composite pipe and preparation method thereof is as follows:
Glass or carbon fibre reinforced high-molecular layer are made of the complete macromolecule thermal shrinkable sleeve that thermal shrinkage is anchored on the bend pipe outer circumferential face.The macromolecule thermal shrinkable sleeve is preferably polyethylene and makes:
A, the tubing high-molecular polythene prepared by extruder is through behind the crosslinking with radiation, and becoming diameter by expander is the 110%-130% of the width after the bend pipe bending, and thickness is the above thermal shrinkable sleeve of 0.5mm.
B, adopt the method for sandblast or shot-peening to remove bainite or rich chromium cast iron outer surface of bent pipe rusty stain and spot.
C, the polyethylene thermal shrinkable sleeve through crosslinking with radiation that size is suitable are inserted in bend pipe, its thermal shrinkable sleeve size of the bend pipe of different size and bend pipe specification coupling.
D, then apply a torch and make thermal shrinkable sleeve tightly be coated on outer surface of steel tube after the thermal shrinkable sleeve heat shrink.
Embodiment 4:
A kind of macromolecule strengthens composite abrasion-proof elbow, comprises the bend pipe body, also comprises shrinking fastening layer of glass fiber or the carbon fibre reinforced high-molecular layer that is coated on bend pipe body outer circumferential face.The bend pipe body is Bainitic Steel/iron or rich chromium cast iron bend pipe.Further, can also be wound with one deck clathrum between bend pipe body and glass or the carbon fibre reinforced high-molecular layer.
Composite pipe and preparation method thereof is as follows:
Glass or carbon fibre reinforced high-molecular layer are made of the banded thing of macromolecule that winding is anchored on the bend pipe outer circumferential face.The banded thing preferably polyethylene of macromolecule is made:
A, adopt the method for sandblast or shot-peening to remove bainite outer surface of bent pipe rusty stain and spot.The bend pipe specification can be 275,190.5 and 180 bend pipes.
B, by extruder high-molecular polythene to be prepared width suitable, the polyethylene band that thickness 0.5mm is above.
C, the polyethylene band that extruder is extruded are wrapped in outer surface of bent pipe immediately.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. a macromolecule strengthens composite abrasion-proof elbow, comprises the bend pipe body, it is characterized in that: also comprise and shrinking or fastening layer of glass fiber or the carbon fibre reinforced high-molecular layer that is coated on described bend pipe body outer circumferential face of injection moulding.
2. macromolecule as claimed in claim 1 strengthens composite abrasion-proof elbow, and it is characterized in that: described bend pipe body is Bainitic Steel/iron or rich chromium cast iron bend pipe.
3. macromolecule as claimed in claim 1 strengthens composite abrasion-proof elbow, it is characterized in that: also be wound with one deck clathrum between described bend pipe body and glass or the carbon fibre reinforced high-molecular layer.
4. strengthen composite abrasion-proof elbow such as claim 1,2 or 3 described macromolecules, it is characterized in that: described glass or carbon fibre reinforced high-molecular layer are made of the complete macromolecule thermal shrinkable sleeve that thermal shrinkage is anchored on the bend pipe outer circumferential face.
5. strengthen composite abrasion-proof elbow such as claim 1,2 or 3 described macromolecules, it is characterized in that: described glass or carbon fibre reinforced high-molecular layer are made of the banded thing of macromolecule that winding is anchored on the bend pipe outer circumferential face.
6. strengthen composite abrasion-proof elbow such as claim 1,2 or 3 described macromolecules, it is characterized in that: described glass or carbon fibre reinforced high-molecular layer cover the one coated by high-molecular film that is anchored on the bend pipe outer circumferential face by injection moulding and consist of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203426483U CN202691407U (en) | 2012-07-16 | 2012-07-16 | Macromolecular enhanced composite wear-resistant elbow |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203426483U CN202691407U (en) | 2012-07-16 | 2012-07-16 | Macromolecular enhanced composite wear-resistant elbow |
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| CN202691407U true CN202691407U (en) | 2013-01-23 |
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| CN2012203426483U Expired - Fee Related CN202691407U (en) | 2012-07-16 | 2012-07-16 | Macromolecular enhanced composite wear-resistant elbow |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498987A (en) * | 2013-09-30 | 2014-01-08 | 黄永贵 | Wear-resisting pump pipe elbow with ceramic lining |
| CN105781438A (en) * | 2015-12-28 | 2016-07-20 | 赵昱 | Non-metal casing pipe used for coalbed methane exploitation and application thereof |
| CN109648049A (en) * | 2019-01-23 | 2019-04-19 | 马鞍山市海天重工科技发展有限公司 | The manufacturing method of half bend pipe of fibre reinforced |
| CN109676111A (en) * | 2019-01-23 | 2019-04-26 | 马鞍山市海天重工科技发展有限公司 | The running gate system of half bend pipe of fibre reinforced |
-
2012
- 2012-07-16 CN CN2012203426483U patent/CN202691407U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498987A (en) * | 2013-09-30 | 2014-01-08 | 黄永贵 | Wear-resisting pump pipe elbow with ceramic lining |
| CN103498987B (en) * | 2013-09-30 | 2016-04-13 | 黄永贵 | A kind of ceramic-lined wear pump pipe bend |
| CN105781438A (en) * | 2015-12-28 | 2016-07-20 | 赵昱 | Non-metal casing pipe used for coalbed methane exploitation and application thereof |
| CN109648049A (en) * | 2019-01-23 | 2019-04-19 | 马鞍山市海天重工科技发展有限公司 | The manufacturing method of half bend pipe of fibre reinforced |
| CN109676111A (en) * | 2019-01-23 | 2019-04-26 | 马鞍山市海天重工科技发展有限公司 | The running gate system of half bend pipe of fibre reinforced |
| CN109648049B (en) * | 2019-01-23 | 2020-05-12 | 马鞍山市海天重工科技发展有限公司 | Manufacturing method of carbon fiber reinforced half-bent pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SICHUAN BAINITE NEW MATERIAL CO., LTD. Free format text: FORMER NAME: JIANGYOU BEIDELI NEW METAL MATERIAL CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 621701 Henan Industrial Park, Jiangyou, Sichuan, Mianyang Patentee after: SICHUAN BAYESIAN NEW MATERIALS CO., LTD. Address before: 621701 Henan Industrial Park, Jiangyou, Sichuan, Mianyang Patentee before: Jiangyou Beideli Metal New Material Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20180716 |