CN105135071A - Method for manufacturing double-metal composite pipe - Google Patents
Method for manufacturing double-metal composite pipe Download PDFInfo
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- CN105135071A CN105135071A CN201510523437.8A CN201510523437A CN105135071A CN 105135071 A CN105135071 A CN 105135071A CN 201510523437 A CN201510523437 A CN 201510523437A CN 105135071 A CN105135071 A CN 105135071A
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- pipe
- pipe body
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- composite pipe
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Classifications
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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
- F16L9/02—Rigid pipes of metal
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a method for manufacturing a double-metal composite pipe. The method includes the steps that 1, surface treatment is carried out on the outer surface of an inner pipe body and the inner surface of an outer pipe body; 2, the inner surface of the outer pipe body or the outer surface of the inner pipe body is coated with a metal layer and dried; 3, the inner pipe body penetrates into the outer pipe body; 4, the inner pipe body is combined with the outer pipe body through a mechanical pipe compositing process; 5, heat treatment fusion is carried out; 6, air cooling or furnace cooling is carried out on the double-metal composite pipe obtained after heat treatment fusion; 7, end openings of the double-metal composite pipe are finished, and decontamination treatment is conducted on the outer surface; and 8, checking and warehousing are carried out. According to the method for manufacturing the double-metal composite pipe, the manner that mechanical composting is in cooperation with metallurgy composting is adopted, and the defects that the work efficiency of a metallurgy composite pipe is low, and the thickness of an outer pipe body and an inner pipe body is uneven are overcome; the feature that the metallurgy composite pipe is high in bonding strength is achieved; the method is suitable for mass production, and metallurgical bonding exists between the outer pipe body and the inner pipe body; the manufactured double-metal composite pipe is high in bonding strength, free of falling and long in service life; and the production process is environment-friendly and free of pollution, and the manufactured double-metal composite pipe has good application prospects compared with similar metallurgy composite pipe products.
Description
Technical field
The present invention relates to metal composite pipe technical field, is specifically related to a kind of manufacture method of composite bimetal pipe.
Background technique
Composite bimetal pipe, is mainly used in the occasion such as the conveying containing Korrosionsmedium, heat exchanger heat-shift.Usually, outer tube is used for pressure-bearing, interiorly effectively resists aggressive medium.At present, composite bimetal pipe on the market mainly can be divided into mechanical composite tube and metallurgical composite pipe two class, and the manufacturing process of two class composite bimetal pipes, all exists defect in various degree, specific as follows,
(1) mechanical composite tube lining pipe is penetrated basic unit's pipe, two pipe Coaxial Superimposeds, then by certain technique as hydraulic pressure, spinning, the method internal lining pipe generation plastic deformation such as to fire, basic unit's pipe does not occur or slight plastic deformation, thus both are closely linked, junction plane belongs to machine joint, but, when high temperature and Long-Time Service, the defects such as easy generation layering, cause bimetal tube to lose efficacy, advantage is that production prices are cheap, is convenient to batch production;
(2) metallurgical composite pipe forms metallurgical composite bed by certain technique between lining pipe and basic unit's pipe, junction plane belongs to metallurgical bonds, and adhesive strength is high, and usability is good, the making price of metallurgical composite bed is partially expensive, cost is high, is unfavorable for batch production, metallurgical composite pipe, at present, there are three kinds of making methods, specific as follows
1) outer tube material and inner tube material are combined by the technique such as hot rolling, explosion welding and make Clad Steel Plate, then welding fabrication is rolled by composite sheet system, this technique easily cause outer tube and inner tube material in uneven thickness, and heat treatment repeatedly in course of working, effect and cost higher;
2) inner tube material built-up welding flies internal surface in outer tube material, and form metallurgical composite pipe, this technique easily causes welding heat affected zone excessive, and cost is very high, and work efficiency is low, cannot complete the composite pipe that the long bore of length is little;
3) make inner tube material be molten state, be coated in the internal surface of outer tube by the method for centrifugal casting, the facile interior pipe consistency of this technique is low, and metallurgical composite bed exists friable tissues, manufactures cost high, is unfavorable for batch production.
Summary of the invention
Technical problem solved by the invention overcomes the deficiency that existing mechanical composite tube and metallurgical composite pipe exist in making method.The manufacture method of composite bimetal pipe of the present invention, mechanical compound is adopted to coordinate metallurgical complex method, have the advantages that mechanical composite tube technique is simple, cost is low, there is again the feature that the adhesive strength of metallurgical composite pipe is high, product performance are more excellent, energy consumption significantly reduces, and easily realizes, and has a good application prospect.
In order to achieve the above object, the technical solution adopted in the present invention is:
A manufacture method for composite bimetal pipe, is characterized in that: comprise the following steps,
Step (1), carries out surface treatment to inner tube outer surface and outer pipe internal surface, and surface treatment comprises polishing and oil removing operation;
Step (2), by the outer surface layer of metal layer of the internal surface of outer tube or interior pipe, dry;
Step (3), penetrates outer tube by interior pipe;
Step (4), adopts mechanical composite tube process combining by inner and outer pipe, form composite bimetal pipe;
Step (5), heat treatment fuses, and be 300 ~ 1400 DEG C by the heat treatment temperature of the composite bimetal pipe of compound, holding time is 2 minutes ~ 4 hours;
Step (6), by heat treatment fuse after composite bimetal pipe, carry out air cooling or stove cold;
Step (7), repair the port of composite bimetal pipe, outer surface carries out abatement processes
Step (8), inspection warehouse-in.
Aforesaid bimetal tube manufacture method, is characterized in that: in step (2), metal layer is metal alloy layer.
Aforesaid bimetal tube manufacture method, is characterized in that: the thickness of described metal alloy layer is 5 ~ 1000 μm.
Aforesaid bimetal tube manufacture method, is characterized in that: in step (5), heat treatment temperature is 500 ~ 1200 DEG C.
Aforesaid bimetal tube manufacture method, is characterized in that: in step (5), holding time is 2 hours.
The invention has the beneficial effects as follows: the manufacture method of composite bimetal pipe of the present invention, mechanical compound is adopted to coordinate metallurgical complex method, the work efficiency overcoming metallurgical composite pipe is low, the shortcomings such as inner and outer pipes uneven thickness, and the feature that the adhesive strength with metallurgical composite pipe is high, compare similar metallurgical composite pipe product, technique side is simple, product performance are more excellent, energy consumption significantly reduces, easy realization, adhesive strength reaches metallurgy combination, effectively can reduce the cost of production of metallurgical composite pipe, the operation of increase is few compared with existing mechanical composite tube production technology, be applicable to producing in enormous quantities, metallurgy combination is there is between outer tube and interior pipe, adhesive strength is high, do not come off, life-span is long, and production process environmental protection, pollution-free, compare similar metallurgical composite pipe product, have a good application prospect.
Accompanying drawing explanation
Fig. 1 is the flow chart of the manufacture method of composite bimetal pipe of the present invention.
Fig. 2 is the cross section structure schematic diagram of the composite bimetal pipe of the manufacture method adopting composite bimetal pipe of the present invention.
Embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
As shown in Figure 1, the manufacture method of composite bimetal pipe of the present invention, comprises the following steps,
Step (1), carries out surface treatment to inner tube outer surface and outer pipe internal surface, and surface treatment comprises polishing and oil removing operation;
Step (2), by the outer surface layer of metal layer of the internal surface of outer tube or interior pipe, dry, metal layer is metal alloy layer, and be preferably copper-zinc alloy layer, adhesive strength is high, and the thickness of metal alloy layer is 5 ~ 1000 μm;
Step (3), penetrates outer tube by interior pipe;
Step (4), adopts mechanical composite tube process combining by inner and outer pipe, form composite bimetal pipe;
Step (5), heat treatment fuses, and be 300 ~ 1400 DEG C by the heat treatment temperature of the composite bimetal pipe of compound, holding time is 2 minutes ~ 4 hours, and heat treatment temperature is preferably 500 ~ 1200 DEG C, and holding time is preferably 2 hours;
Step (6), by heat treatment fuse after composite bimetal pipe, carry out air cooling or stove cold;
Step (7), repair the port of composite bimetal pipe, outer surface carries out abatement processes;
Step (8), inspection warehouse-in.
As shown in Figure 2, adopt the composite bimetal pipe that the manufacture method of composite bimetal pipe of the present invention makes, 1 is interior pipe, 2 is metal layer, 3 is outer tube, mechanical compound is adopted to coordinate metallurgical complex method, the work efficiency overcoming metallurgical composite pipe is low, the shortcomings such as inner and outer pipes uneven thickness, and the feature that the adhesive strength with metallurgical composite pipe is high, compare similar metallurgical composite pipe product, technique side is simple, product performance are more excellent, energy consumption significantly reduces, easy realization, adhesive strength reaches metallurgy combination, effectively can reduce the cost of production of metallurgical composite pipe, the operation of increase is few compared with existing mechanical composite tube production technology, be applicable to producing in enormous quantities, metallurgy combination is there is between outer tube and interior pipe, adhesive strength is high, do not come off, life-span is long, and production process environmental protection, pollution-free, compare similar metallurgical composite pipe product, have a good application prospect.
More than show and describe basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (5)
1. a manufacture method for composite bimetal pipe, is characterized in that: comprise the following steps,
Step (1), carries out surface treatment to inner tube outer surface and outer pipe internal surface, and surface treatment comprises polishing and oil removing operation;
Step (2), by the outer surface layer of metal layer of the internal surface of outer tube or interior pipe, dry;
Step (3), penetrates outer tube by interior pipe;
Step (4), adopts mechanical composite tube process combining by inner and outer pipe, form composite bimetal pipe;
Step (5), heat treatment fuses, and be 300 ~ 1400 DEG C by the heat treatment temperature of the composite bimetal pipe of compound, holding time is 2 minutes ~ 4 hours;
Step (6), by heat treatment fuse after composite bimetal pipe, carry out air cooling or stove cold;
Step (7), repair the port of composite bimetal pipe, outer surface carries out abatement processes
Step (8), inspection warehouse-in.
2. bimetal tube manufacture method according to claim 1, is characterized in that: in step (2), metal layer is metal alloy layer.
3. bimetal tube manufacture method according to claim 1 and 2, is characterized in that: the thickness of described metal alloy layer is 5 ~ 1000 μm.
4. bimetal tube manufacture method according to claim 1, is characterized in that: in step (5), heat treatment temperature is 500 ~ 1200 DEG C.
5. bimetal tube manufacture method according to claim 1, is characterized in that: in step (5), holding time is 2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510523437.8A CN105135071A (en) | 2015-08-25 | 2015-08-25 | Method for manufacturing double-metal composite pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510523437.8A CN105135071A (en) | 2015-08-25 | 2015-08-25 | Method for manufacturing double-metal composite pipe |
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| CN105135071A true CN105135071A (en) | 2015-12-09 |
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| CN201510523437.8A Pending CN105135071A (en) | 2015-08-25 | 2015-08-25 | Method for manufacturing double-metal composite pipe |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107774737A (en) * | 2016-08-31 | 2018-03-09 | 扬州市管件厂有限公司 | Ni-based composite bimetal pipe part moulding process |
| CN108044230A (en) * | 2017-12-12 | 2018-05-18 | 太原科技大学 | A kind of method of stainless steel tube and the metallurgical compound base of carbon steel pipe |
| CN108714768A (en) * | 2018-05-18 | 2018-10-30 | 沧州隆泰迪管道科技有限公司 | A kind of diameter reduced mechanical composite tube processing method |
| CN109277502A (en) * | 2018-11-08 | 2019-01-29 | 南京工业大学 | Bimetal composite spring and preparation method thereof |
| CN109518178A (en) * | 2018-11-08 | 2019-03-26 | 南京工业大学 | Preparation method of bimetal composite round steel |
| CN109570257A (en) * | 2018-11-08 | 2019-04-05 | 南京工业大学 | Bimetal composite flat steel, strip steel and preparation method thereof |
| CN110538866A (en) * | 2019-09-09 | 2019-12-06 | 南工大溧阳新材料研发中心有限公司 | Bimetal composite material production equipment |
| CN113560818A (en) * | 2021-07-16 | 2021-10-29 | 上海天阳钢管有限公司 | Method for manufacturing metallurgical composite pipe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993020382A1 (en) * | 1992-03-31 | 1993-10-14 | Heinrich Hampel | Metal pipe and process for producing the same |
| CN201407423Y (en) * | 2009-05-22 | 2010-02-17 | 西安向阳航天材料股份有限公司 | Double-metal composite bend pipe with both metallurgical bonding ends and mechanical bonding middle part |
| CN102672438A (en) * | 2012-06-04 | 2012-09-19 | 新兴铸管股份有限公司 | Process for producing metallurgical composite double metal seamless steel pipe |
| CN103978292A (en) * | 2014-05-26 | 2014-08-13 | 北京隆盛泰科石油管科技有限公司 | Duplex-metal metallurgical composite pipe finished through quadruple welding and process method thereof |
-
2015
- 2015-08-25 CN CN201510523437.8A patent/CN105135071A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993020382A1 (en) * | 1992-03-31 | 1993-10-14 | Heinrich Hampel | Metal pipe and process for producing the same |
| CN201407423Y (en) * | 2009-05-22 | 2010-02-17 | 西安向阳航天材料股份有限公司 | Double-metal composite bend pipe with both metallurgical bonding ends and mechanical bonding middle part |
| CN102672438A (en) * | 2012-06-04 | 2012-09-19 | 新兴铸管股份有限公司 | Process for producing metallurgical composite double metal seamless steel pipe |
| CN103978292A (en) * | 2014-05-26 | 2014-08-13 | 北京隆盛泰科石油管科技有限公司 | Duplex-metal metallurgical composite pipe finished through quadruple welding and process method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107774737A (en) * | 2016-08-31 | 2018-03-09 | 扬州市管件厂有限公司 | Ni-based composite bimetal pipe part moulding process |
| CN108044230A (en) * | 2017-12-12 | 2018-05-18 | 太原科技大学 | A kind of method of stainless steel tube and the metallurgical compound base of carbon steel pipe |
| CN108714768A (en) * | 2018-05-18 | 2018-10-30 | 沧州隆泰迪管道科技有限公司 | A kind of diameter reduced mechanical composite tube processing method |
| CN109277502A (en) * | 2018-11-08 | 2019-01-29 | 南京工业大学 | Bimetal composite spring and preparation method thereof |
| CN109518178A (en) * | 2018-11-08 | 2019-03-26 | 南京工业大学 | Preparation method of bimetal composite round steel |
| CN109570257A (en) * | 2018-11-08 | 2019-04-05 | 南京工业大学 | Bimetal composite flat steel, strip steel and preparation method thereof |
| CN110538866A (en) * | 2019-09-09 | 2019-12-06 | 南工大溧阳新材料研发中心有限公司 | Bimetal composite material production equipment |
| CN110538866B (en) * | 2019-09-09 | 2020-08-28 | 南工大溧阳新材料研发中心有限公司 | Bimetal composite material production equipment |
| CN113560818A (en) * | 2021-07-16 | 2021-10-29 | 上海天阳钢管有限公司 | Method for manufacturing metallurgical composite pipe |
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Application publication date: 20151209 |