CN104455773B - The preparation method of composite corrosion-resistant pipe - Google Patents
The preparation method of composite corrosion-resistant pipe Download PDFInfo
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- CN104455773B CN104455773B CN201410674416.1A CN201410674416A CN104455773B CN 104455773 B CN104455773 B CN 104455773B CN 201410674416 A CN201410674416 A CN 201410674416A CN 104455773 B CN104455773 B CN 104455773B
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- corrosion
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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
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
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- Mechanical Engineering (AREA)
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Abstract
The preparation method of a kind of composite corrosion-resistant pipe, it comprises the steps of: the first step: body layer pre-processes；Second step: wear-and corrosion-resistant layer pre-processes；3rd step: cold rolling Compound Machining is molded, and wear-and corrosion-resistant layer is put into body layer, carries out two-layer cold rolling compound；4th step: coat tack coat in body layer outer rim；5th step: raw material mixes；6th step: hot pressing tinning；7th step: heating coating molding；Thus; the inventive method step simple and fast; ensure that body layer and the effective of wear-and corrosion-resistant layer are combined; both ensure that the wear-and corrosion-resistant performance to object of transport; also resilient protection is achieved at outer layer, it is adaptable to construction requirement, it is ensured that the wear resistance of interior steel pipe; also reduce cost, save resource.
Description
Technical field
The present invention relates to the technical field of pipeline, particularly relate to the preparation method of a kind of composite corrosion-resistant pipe.
Background technology
Along with improving constantly of people's living standard, various capital constructions also get more and more, and need pipeline to realize
The conveying of water, oil, gas etc., but along with the people's progressively attention to environment, also be intended to this basis equally and build
If the impact on environment can be reduced as far as possible.
In the prior art, fix to realize pipeline and construct, generally using the following two kinds mode: one is
Land burial formula pressure pipeline, had both imbedded underground by pipeline, and by one layer of Covered with Angles around penstock
Muscle concrete and country rock carry out pipeline to be fixed；Two is open-air penstock, and both penstock was revealed in surface, and
Fixed by anchor block and buttress.
In both approaches, it is intended to adapt to different requirements for anticorrosion, to adapt to the requirement of various object conveyor,
To this end, the pipeline of conveying needs to provide necessary antiseptic property, could preferably be suitable for the requirement of construction.
To this end, the designer of the present invention is in view of drawbacks described above, by concentrating on studies and design, for a long time
Being engaged in experience and the achievement of related industry for many years, research and design goes out the preparation method of a kind of composite corrosion-resistant pipe, with
Overcome drawbacks described above.
Summary of the invention
The technical problem to be solved in the present invention is: provide the preparation method of a kind of composite corrosion-resistant pipe, and obtain is anti-
Rotten pipeline is provided that the antiseptic property of necessity, reduces the destruction to environment, better meets construction requirement.
For solving the problems referred to above, the invention discloses the preparation method of a kind of composite corrosion-resistant pipe, it is characterised in that
Comprise the steps of:
The first step: body layer pre-processes, i.e. body layer carry out pickling processes, remove oxide on surface, go forward side by side
Row Integral correction；
Second step: wear-and corrosion-resistant layer pre-processes, and carries out making annealing treatment and modifier treatment after Integral correction, whole
Sports school is just guaranteeing that the external diameter of wear-and corrosion-resistant layer is less than body layer internal diameter 0.5-0.8mm；
3rd step: cold rolling Compound Machining is molded, and wear-and corrosion-resistant layer is put into body layer, carries out two-layer cold rolling
Compound；
4th step: coating tack coat in body layer outer rim, this bonding layer material is rubber；
5th step: raw material mixes, by rubber 50-80 part, titanium dioxide 2-4 part, carborundum 15-18 part, thin,tough silk
The material of mica 5-8 part adds blending tank and carries out mix and blend, carries out twice mixed at high speed of 2 minutes respectively and stirs
Mix；
6th step: hot pressing tinning, loads after the material after mix and blend carries out heating pressurization in shaping tank；
7th step: heating coating molding, extrudes after being heated by the material in shaping tank, and direct basis is thick
Degree is coated on tack coat.
Wherein: described annealing is 800-830 DEG C and is incubated 2-3 hour, it is cooled to 720-750 DEG C of insulation 1-1.5
Hour, it being cooled to 450 DEG C of coolings of coming out of the stove, described modifier treatment is carried out after the annealing process, and it comprises
350-400 DEG C of temper after 880-900 DEG C of Quenching Treatment.
Wherein: described body layer uses common iron to make, the described each Ingredients Weight of wear-and corrosion-resistant layer
Percentage is: C is between 0.7-0.9, and Mn is less than 0.7, and Si is less than 0.7, and S is less than 0.02, and P is less than 0.03,
Cr is between 12-15, and Mo is between 0.2-0.3, and Nb is between 0.02-0.05, and remaining is Fe.
By said method, the preparation method of the composite corrosion-resistant pipe of the present invention has the following technical effect that
1, method step simple and fast, it is ensured that body layer and the effective of wear-and corrosion-resistant layer are combined, and both ensure that
Wear-and corrosion-resistant performance to object of transport, also achieves resilient protection at outer layer, it is adaptable to construction requirement；
2, the setting of material, not only increases performance, also effectively reduces weight；
3, ensure that the wear resistance of interior steel pipe, also reduce cost, save resource.
The detailed content of the present invention can be obtained by explanation described later and institute's accompanying drawing.
Accompanying drawing explanation
Fig. 1 shows the flow chart of the preparation method of composite corrosion-resistant pipe of the present invention.
Fig. 2 shows the structural representation of the composite corrosion-resistant pipe obtained by the inventive method.
Fig. 3 shows section view of steel pipe in the present invention.
Reference:
10, composite corrosion-resistant pipe；11, interior steel pipe；12, elastic tube；111, body layer；112, wear-and corrosion-resistant
Layer；113, tack coat.
Detailed description of the invention
See Fig. 1, it is shown that the preparation method of the composite corrosion-resistant pipe of the present invention.
For realizing the antiseptic effect of the present invention, seeing Fig. 2 and 3, this composite corrosion-resistant pipe 10 is by being positioned at inner edge
Interior steel pipe 11 and the elastic tube 12 being sleeved on outside interior steel pipe 11 form, and described interior steel pipe 11 is isometrical hollow tube,
Can supply, the various objects such as oil, water, circuit pass, and outside elastic tube 12 does not use rigid structure.
Wherein, described elastic tube 12 can be that rubber is made, for avoid manufacture after carrying neutralize install after fast
Speed abrasion or loss of elasticity, also add the materials such as titanium dioxide, carborundum, sericite, to carry in rubber
For the more preferable anti-wear performance of elastic tube and life-span, wherein, in one embodiment, the master of described elastic tube 12
Material is rubber, and carries out proportioning making according to following composition in whole material: rubber 50-80 part, titanium dioxide
2-4 part, carborundum 15-18 part, sericite 5-8 part.
Described interior steel pipe 11 is including at least body layer 111 and the wear-and corrosion-resistant layer being positioned at body layer 111 inner edge
112, described body layer 111 is mainly responsible for intensity and the hardness of interior steel pipe 11, therefore described body layer 111 can not
Use and arrange especially, but use common iron to make, and described wear-and corrosion-resistant layer 112 is Cr alloy
Steel, in described wear-and corrosion-resistant layer 112, each composition by weight percent is: C is that between 0.7-0.9, Mn is less than
0.7, Si be less than 0.7, S be less than 0.02, P be less than 0.03, Cr is between 12-15, Mo be 0.2-0.3 it
Between, Nb is between 0.02-0.05, and remaining is Fe, by test, the wear-and corrosion-resistant layer that this one-tenth is grouped into
Better adaptability, decay resistance is fully enhanced, and reaches 480 hours carrying out salt spray test, and this is resistance to
The protection level of mill anticorrosive coat 112 itself reaches 8 grades, complies fully with requirement.
Wherein, for improving interior combination effect between steel pipe 11 and elastic tube 12, the basis of described interior steel pipe 11
Body layer 111 outer rim is also coated with tack coat 113, and described tack coat 113 is similarly quality of rubber materials, and it is directly coated with
It is overlying on the outer rim of interior steel pipe 11 body layer 111, thus, by character between tack coat 113 and elastic tube 12
Close or identical, be effectively improved adhesion property, it is to avoid unnecessary disengaging and damage, improve body
Overall performance.
Thus, the preparation method of the present invention comprises:
The first step: body layer pre-processes, the body layer of common iron is mainly carried out pickling processes by it, goes
Except oxide on surface, and carry out Integral correction；
Second step: wear-and corrosion-resistant layer pre-processes, and carries out making annealing treatment and modifier treatment after Integral correction, whole
Sports school is just guaranteeing that the external diameter of wear-and corrosion-resistant layer is less than body layer internal diameter 0.5-0.8mm, and this annealing is
800-830 DEG C is incubated 2-3 hour, is cooled to 720-750 DEG C and is incubated 1-1.5 hour, is cooled to 450 DEG C and comes out of the stove
Cooling, this modifier treatment is carried out after the annealing process, and it comprises after 880-900 DEG C of Quenching Treatment 350-400 DEG C
Temper；
3rd step: cold rolling Compound Machining is molded, and wear-and corrosion-resistant layer is put into body layer, carries out two-layer cold rolling
Compound, owing between two-layer, material is close, and time cold rolling, Joint Properties will not receive impact, the most wear-resisting anti-
The wear-and corrosion-resistant effect of rotten layer is the most preferably kept；
4th step: coating tack coat in body layer outer rim, this bonding layer material is rubber；
5th step: raw material mixes, by rubber 50-80 part, titanium dioxide 2-4 part, carborundum 15-18 part, thin,tough silk
The material of mica 5-8 part adds blending tank, mixes after waiting certain time (if half an hour was to one hour)
Stirring, carries out twice mixed at high speed of 2 minutes stirrings respectively；
6th step: hot pressing tinning, loads after the material after mix and blend carries out heating pressurization in shaping tank；
7th step: heating coating molding, extrudes after being heated by the material in shaping tank, and direct basis is thick
Degree is coated on tack coat.
Thus, by the method for the present invention, can obtain having concurrently the conveyance conduit of antiseptic effect and composite performance,
This manufacture method and pipeline possess following advantage:
1, method step simple and fast, it is ensured that body layer and the effective of wear-and corrosion-resistant layer are combined, and both ensure that
Wear-and corrosion-resistant performance to object of transport, also achieves resilient protection at outer layer, it is adaptable to construction requirement；
2, the setting of material, not only increases performance, also effectively reduces weight；
3, structurally ensure that the wear resistance of interior steel pipe, also reduce cost, save resource.
It is readily apparent that above description and record are only to illustrate rather than in order to limit the public affairs of the present invention
Open content, apply or use.Although describing the most in an embodiment and being described in the drawings embodiment,
But the present invention be not intended to by accompanying drawing example and be described as in an embodiment it is now recognized that optimal mode with reality
Executing the specific examples of the teachings of the present invention, the scope of the present invention will include falling into specification above and appended
Any embodiment of claim.
Claims (3)
1. the preparation method of a composite corrosion-resistant pipe, it is characterised in that comprise the steps of:
The first step: body layer pre-processes, i.e. body layer carry out pickling processes, remove Surface Oxygen
Compound, and carry out Integral correction；
Second step: wear-and corrosion-resistant layer pre-processes, and makes annealing treatment and adjust after Integral correction
Matter processes, and Integral correction guarantees that the external diameter of wear-and corrosion-resistant layer is less than body layer internal diameter
0.5-0.8mm；
3rd step: cold rolling Compound Machining is molded, and wear-and corrosion-resistant layer is put into body layer, enters
Row two-layer is cold rolling compound；
4th step: coating tack coat in body layer outer rim, this bonding layer material is rubber；
5th step: raw material mixes, by rubber 50-80 part, titanium dioxide 2-4 part, carborundum
15-18 part, the material of sericite 5-8 part add blending tank and carry out mix and blend, enter respectively
Twice mixed at high speed of 2 minutes stirrings of row；
6th step: hot pressing tinning, loads after the material after mix and blend carries out heating pressurization
In shaping tank；
7th step: heating coating molding, extrudes after being heated by the material in shaping tank,
Direct basis thickness is coated on tack coat.
2. preparation method as claimed in claim 1, it is characterised in that: described annealing
It is incubated 2-3 hour for 800-830 DEG C, is cooled to 720-750 DEG C and is incubated 1-1.5 hour,
Being cooled to 450 DEG C of coolings of coming out of the stove, described modifier treatment is carried out after the annealing process, and it comprises
350-400 DEG C of temper after 880-900 DEG C of Quenching Treatment.
3. preparation method as claimed in claim 1, it is characterised in that: described body layer is adopted
Make of common iron, and the described each composition by weight percent of wear-and corrosion-resistant layer is: C
Between 0.7-0.9, Mn is less than 0.7, and Si is less than 0.7, and S is less than 0.02, and P is less than 0.03,
Cr is between 12-15, and Mo is between 0.2-0.3, and Nb is between 0.02-0.05, remaining
For Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410674416.1A CN104455773B (en) | 2014-11-21 | 2014-11-21 | The preparation method of composite corrosion-resistant pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410674416.1A CN104455773B (en) | 2014-11-21 | 2014-11-21 | The preparation method of composite corrosion-resistant pipe |
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| Publication Number | Publication Date |
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| CN104455773A CN104455773A (en) | 2015-03-25 |
| CN104455773B true CN104455773B (en) | 2016-08-31 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB500203A (en) * | 1937-08-03 | 1939-02-03 | Turner & Newall Ltd | Improvements in the manufacture of lined metal pipes |
| CA1077691A (en) * | 1976-07-26 | 1980-05-20 | Makoto Mitarai | Method for producing clad steel pipes |
| CN2260222Y (en) * | 1996-11-29 | 1997-08-20 | 杨成美 | Metallic and plastic composition corrosion-proof pipe |
| CN101709810B (en) * | 2009-10-31 | 2011-06-08 | 大庆油田有限责任公司 | Low-temperature prefabricating process of anticorrosive heat insulating compound pipeline |
| CN103697244B (en) * | 2013-12-12 | 2016-04-20 | 四川鑫鼎新材料有限公司 | Seamless composite steel tube of a kind of bimetal wear resistant and preparation method thereof |
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2014
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| CB03 | Change of inventor or designer information |
Inventor after: Lin Weiming Inventor after: Wu Fangming Inventor after: Wang Yong Inventor after: Liu Hong Inventor after: Chen Xing Inventor after: Zhou Xueqiong Inventor after: Li Youfa Inventor after: Huang Xu Inventor after: Yao Shijun Inventor before: Lin Weiming Inventor before: Wu Fangming |
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