CN1140361C - Technology for making composite metal pipe - Google Patents
Technology for making composite metal pipe Download PDFInfo
- Publication number
- CN1140361C CN1140361C CNB00113051XA CN00113051A CN1140361C CN 1140361 C CN1140361 C CN 1140361C CN B00113051X A CNB00113051X A CN B00113051XA CN 00113051 A CN00113051 A CN 00113051A CN 1140361 C CN1140361 C CN 1140361C
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- China
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- stainless steel
- pipe
- carbon steel
- tube
- steel pipe
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- Expired - Fee Related
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- Rigid Pipes And Flexible Pipes (AREA)
- Metal Extraction Processes (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The present invention relates to a method for compounding two metal pipes into a composite pipe, which aims at solving the problems of the existing composite metal pipe such as defective tightness in a junction surface, large gap, poor intensity, short service life, etc. The method comprises the following steps: grinding and cleaning the surface of a carbon steel pipe, drawing the carbon steel pipe and a stainless steel pipe in cold drawing, defining a circle and defining a scale; aligning, sheathing the carbon steel pipe in the stainless steel pipe, drawing the blank of the composite pipe in cold drawing for rolling and defining a diameter, tightly attaching the carbon steel pipe and the stainless steel pipe with the clearance of zero to manufacture the composite metal pipe. The composite pipe manufactured in the method is suitable for the technical fields of salt industry, chemical industry, petroleum, food, architectural decoration, medical instruments, etc., and the composite pipe can also be used as a flag pole, or a lamp post, or a guardrail in a city, etc.
Description
The present invention relates to the forming method of metal tube, particularly with two kinds of compound forming methods that become composite pipe of metal pipe material.
For a long time, be used to carry the pipeline of corrosive medium, the material of corrosion-resistant container, and ornament materials, all adopt pure stainless steel or non-ferrous metal or adopt carbon steel or metal again with the compound goods such as multiple tube or container of making of plastics.The weak point of this based article is the cost height, thereby is difficult to be widely used.For reducing cost, often adopt the pipe or the vessel prepd of thin-wall construction, then the intensity of goods, reduced stiffness, influence is used.At present, existing a kind of stainless steel composite pipe that in stainless steel tube, is nested with carbon steel tubing, its manufacture method is to make the base pipe with common stainless steel welded pipe; Will be without the common carbon steel tubing of any processing, be inserted in undressed stainless steel welded pipe, carry out cold extrusion with the cold-drawn roll mill then, the stainless steel tube medial surface is fitted on the carbon steel tubing lateral surface, both mechanically combine, and are carbon steel tubing in forming, and are outward the stainless steel composite pipe blank of stainless steel tube, again with spiral very heavyly carry out alignment, length is cut off, is carried out surface treatments such as manual shaping, sand milling at last on demand, makes composite stainless steel pipe.This stainless steel tube is owing to the faying face compound the former two is that the outer surface of carbon steel tubing and the inner surface of stainless steel tube all do not pass through any processing, problems such as existence is round, straight, out-of-flatness, cause the two can not fit tightly at compound back faying face, the gap is big, its structural strength is poor, and service life is short.
Given this, the object of the present invention is to provide a kind of manufacture method of compact metal composite pipe.
The present invention adopts before compound carbon steel tubing polished and cleans surface treatment with water; With drawbench carbon steel tubing and stainless steel tube are carried out the drawing processing again, make carbon steel tubing external diameter circle, scale surely, the stainless steel tube internal diameter is circle, scale surely; Then with existing compound its purpose that realizes behind hydraulic straightening machine alignment carbon steel tubing and the stainless steel tube.
The manufacture method of metal composite pipe of the present invention is that interior pipe, stainless steel tube are outer tube with carbon steel tubing, and its technical process is:
(1) carbon steel tubing is polished cleans surface treatment with water;
(2) with drawbench carbon steel tubing and stainless steel tube are pulled out and draw processing, make carbon steel tubing external diameter circle, scale surely, the stainless steel tube internal diameter is circle, scale surely;
(3) alignment carbon steel tubing and stainless steel tube;
(4) carbon steel tubing after the alignment is inserted in the stainless steel tube, forms the multiple tube blank;
(5) with drawbench the multiple tube blank is carried out pressure rolling and sizing processing, stainless steel tube and carbon steel tubing are fitted tightly, the gap is zero, makes metal composite pipe.
Above-mentioned stainless steel tube can be used stainless steel band solder joint behind the cold rolling one-tenth vertical masonry joint of stainless steel pipe pipe forming machine pipe, again through polishing, smooth, bright and clean making.
Above-mentioned metal composite pipe is through the straightener alignment.
Metal composite pipe with the inventive method is made is applicable to fields such as salt industry, chemical industry, oil, food, building decoration, medicine equipment, also can make flagpole, lamp stand, city guardrail etc.
Method of the present invention has following substantive distinguishing features and significant effect:
One, the present invention carbon steel tubing and stainless steel tube carry out compound before, respectively the two is carried out the tubing that cold-drawn, pressure rolling, sizing become to reach precision standard, can guarantee that the two fit clearance after compound is zero.Thereby when making both pass through compound pressure rolling again, stainless steel tube produces plastic deformation, closely is coated on the carbon steel tubing outer surface, fully guarantee the two closely cooperate, do not have the gap, surface quality is good, non-wrinkle, intensity is high, good rigidly.
Two, the present invention carbon steel tubing and stainless steel tube carry out compound before, respectively the two is carried out alignment, can guarantee that both are inserted in mutually smoothly.
Three, the present invention carbon steel tubing and stainless steel tube carry out compound before, carbon steel tubing polished cleans clean surface treatment with water, guarantee its any surface finish, can make the two fashionable fit clearance that is nested for minimum, help fitting tightly of the two.
Four, the pipe weld seam of the present invention to making with stainless steel band through polishing, smooth, bright and clean processing, can make this metal multiple tube behind the sand milling polished surface, the weld seam vestige can not occur.
Five, the alignment of the present invention's this multiple tube after to moulding is handled, and can obtain the metal composite pipe of high alignment precision.
Can produce external diameter φ 10-φ 1500mm, the metal composite pipe of wall thickness 1.0-20mm with the inventive method.The multiple layer of its metal wall thickness 0.3-4.0mm, base material wall thickness 0.7-16mm.
Below, with embodiment the present invention is further described again.
Embodiment 1
The manufacture method of a kind of metal composite pipe of the present invention is that interior pipe, stainless steel tube are outer tube with carbon steel tubing, and its technical process is as follows:
(1) carbon steel tubing is polished clean surface treatment with water, rust staining is removed in the clean surface.Employed stainless steel tube can be the stainless steel tube of moulding.Also can carry out the weld seam welding through argon arc welding machine with stainless steel band through the cold rolling one-tenth vertical masonry joint of stainless steel pipe pipe forming machine pipe, again through polishing, smooth, the bright and clean stainless steel tube of making,
(2) with drawbench carbon steel tubing and stainless steel tube are pulled out and draw processing, make carbon steel tubing external diameter circle, scale surely, the stainless steel tube internal diameter is circle, scale surely, reaches dimensional requirement.
(3) with hydraulic straightening machine alignment carbon steel tubing and stainless steel tube, reach straight degree requirement.
(4) be inserted in the stainless steel tube with the carbon steel tubing of the machine that is inserted in after, form the multiple tube blank alignment;
(5) with drawbench the multiple tube blank is carried out pressure rolling and sizing processing, stainless steel tube and carbon steel tubing are fitted tightly, the gap is zero, makes metal composite pipe.
(6) use the hydraulic straightening machine alignment, reach straight degree requirement, make this metal multiple tube.
(7) this metal multiple tube is cut with cutting machine cut lengths on demand.
(8) this metal multiple tube is carried out surperficial shaping, polishing with elastic grinding wheel, buffing machine, make surface quality have uniformity, uniformity, light, reach the surface quality requirement.
(9) check, packing, warehouse-in.
Claims (2)
1, the manufacture method of metal composite pipe is that interior pipe, stainless steel tube are outer tube with carbon steel tubing, it is characterized in that:
(1) carbon steel tubing is polished cleans surface treatment with water;
(2) with drawbench carbon steel tubing and stainless steel tube are pulled out and draw processing, make carbon steel tubing external diameter circle, scale surely, the stainless steel tube internal diameter is circle, scale surely;
(3) alignment carbon steel tubing and stainless steel tube;
(4) carbon steel tubing after the alignment is inserted in the stainless steel tube, forms the multiple tube blank;
(5) with drawbench the multiple tube blank is carried out pressure rolling and sizing processing, stainless steel tube and carbon steel tubing are fitted tightly, the gap is zero, makes metal composite pipe.
2, the manufacture method of metal composite pipe according to claim 1, it is characterized in that said stainless steel tube stainless steel band solder joint behind the cold rolling one-tenth vertical masonry joint of stainless steel pipe pipe forming machine pipe, through polishing, smooth, bright and clean making, said metal composite pipe is through the straightener alignment again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB00113051XA CN1140361C (en) | 2000-06-23 | 2000-06-23 | Technology for making composite metal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB00113051XA CN1140361C (en) | 2000-06-23 | 2000-06-23 | Technology for making composite metal pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1330988A CN1330988A (en) | 2002-01-16 |
| CN1140361C true CN1140361C (en) | 2004-03-03 |
Family
ID=4582870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB00113051XA Expired - Fee Related CN1140361C (en) | 2000-06-23 | 2000-06-23 | Technology for making composite metal pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1140361C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100411761C (en) * | 2005-10-20 | 2008-08-20 | 江苏兴荣高新科技股份有限公司 | Method for manufacturing copper aluminum bimetal wire |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008145001A1 (en) * | 2007-05-31 | 2008-12-04 | Jiahui Hu | A composite metallic product |
| CN101804543B (en) * | 2010-03-25 | 2012-05-02 | 常州钢构建设工程有限公司 | Process for coating stainless steel pipe on outer surface of steel pipe |
| CN102019300A (en) * | 2010-11-10 | 2011-04-20 | 江苏华程工业制管股份有限公司 | Method for manufacturing cold drawn tube |
| CN102172663B (en) * | 2011-01-27 | 2013-06-19 | 江苏龙城洪力液压设备有限公司 | Production technology and equipment for composite steel tubes |
| CN102274853A (en) * | 2011-08-13 | 2011-12-14 | 四川三洲特种钢管有限公司 | Process for manufacturing hot-rolled composite corrosion-resistance double-metal steel tube |
| CN103157693A (en) * | 2011-12-13 | 2013-06-19 | 洛阳希诺能源科技有限公司 | Production process of high-temperature-resistant metal composite pipe |
| CN102513401A (en) * | 2011-12-21 | 2012-06-27 | 济源豫光新材料科技有限公司 | Tubular target bonding method |
| CN103817411A (en) * | 2014-02-23 | 2014-05-28 | 芜湖鑫力管道技术有限公司 | High-strength composite stainless steel flagpole and welding method thereof |
| CN104191182A (en) * | 2014-09-22 | 2014-12-10 | 沈阳和世泰实业有限公司 | Production method of totally-coated metal composite pipe |
| CN112059540A (en) * | 2020-08-11 | 2020-12-11 | 浙江晶日科技股份有限公司 | Cold-drawn lamp pole and manufacturing process thereof |
| CN112108531A (en) * | 2020-09-04 | 2020-12-22 | 江苏宏亿钢管有限公司 | Production process of novel precise cold-drawn steel tube |
| CN112453084B (en) * | 2020-11-04 | 2023-03-21 | 太原科技大学 | Preparation method of multilayer metal composite pipe |
| CN112718867B (en) * | 2020-12-09 | 2022-08-26 | 太原理工大学 | Three-roller skew rolling forming method for metal composite pipe with corrugated joint surface |
-
2000
- 2000-06-23 CN CNB00113051XA patent/CN1140361C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100411761C (en) * | 2005-10-20 | 2008-08-20 | 江苏兴荣高新科技股份有限公司 | Method for manufacturing copper aluminum bimetal wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1330988A (en) | 2002-01-16 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040303 Termination date: 20120623 |