CN102152125B - Production method and device for manufacturing composite pipe from composite stainless steel plate by hot rolling - Google Patents
Production method and device for manufacturing composite pipe from composite stainless steel plate by hot rolling Download PDFInfo
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- CN102152125B CN102152125B CN201110048575.7A CN201110048575A CN102152125B CN 102152125 B CN102152125 B CN 102152125B CN 201110048575 A CN201110048575 A CN 201110048575A CN 102152125 B CN102152125 B CN 102152125B
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Abstract
The invention relates to a production method and device for manufacturing a composite pipe from a composite stainless steel plate by hot rolling. The production method comprises the forming process of the pipe and the welding process of the pipe. The invention is characterized in that in the forming process of the pipe, a carbon steel/stainless steel composite metal plate is bent into a pipe shape; and in the welding process of the pipe, a high-frequency welding method is adopted to closely weld carbon steel joint edges on the pipe-shaped joint edges together, and then an argon-arc and wire-feed filling welding method is adopted to closely weld stainless steel joint edges on the pipe-surface-shaped joint edges together. Compared with the prior art, the invention has the advantages that no gaps exist between pipe layers, the process is simple and the production cost is low.
Description
Technical field
The present invention relates to a kind of production method and device of hot-rolled stainless steel compound pipe molding welding.
Background technology
The production method of existing composite metal pipe comprises first manufactures core pipe, and then also this cladding material is welded into tubulose toward the coated cladding material of core tube outer surface, the greatest drawback that above-mentioned technology exists is to leave space between two-layer pipe, water and air easily infiltrates into space internal corrosion pipe, and, this kind of technical matters complexity, production cost is high.
Summary of the invention
The goal of the invention of this hot-rolled stainless steel clad steel plate moulding welding invention is to provide production method and the device of the multiple tube that between a kind of layer of pipe, hot-rolled stainless steel clad steel plate very close to each other, that technique is simple, production cost is low is made.
The production method of the multiple tube that the present invention is made by hot-rolled stainless steel clad steel plate moulding welding is to realize like this, comprise the forming process of pipe, the welding process of pipe, its special feature is that the forming process of pipe is that the good stainless compound steel plate of hot rolling is twisted into tubulose, the welding process of pipe is first to adopt high-frequency welding method that the carbon steel jointing edge on tubulose jointing edge is closely welded together, and then adopts argon arc to add wire feed welding method the stainless steel jointing edge on tubulose jointing edge is closely welded together.Because the temperature of carbon steel welding is low more than the temperature of stainless steel welding, at high-frequency welding process medium carbon steel, under 200～250 hertz of frequencies, be to magnetize welding, and stainless steel is not magnetizable welding, can only weld for the second time stainless steel composite pipe, namely stainless steel parts be welded.
If entirely adopt argon arc welding, although can be by carbon steel and stainless steel welding, but, after carbon steel welding, contained ferrite can be exuded in stainless steel weld joint and surperficial, and ferritic existence makes stainless steel weld joint and surface easily form oxidizing electrode and corrosion has seriously affected quality and the use of composite pipe.Adopt the technology of the present invention just to solve well the problems referred to above, first adopt the high-frequency welding method welding carbon steel of relative low temperature, now, because stainless steel does not also have fusion weld, therefore, even if carbon contained after carbon steel melting can ooze out, also the stainless steel welding after can not affecting, adopt argon arc to add wire feed welding method, because be fills the stainless steel melt of melting in weld seam, like this, just can not make the ferrite of the carbon steel weld below stainless steel weld joint be released on stainless steel weld joint, guarantee the quality of composite pipe.
Here, in order further to guarantee that argon arc adds wire feed when welding, the metal of high-temperature fusion can not make ferritic steel melting and disengage carbon in stainless steel melt, just in 3-20 seconds after high-frequency welding, carries out argon arc and adds wire feed and weld.Like this, the carbon steel after high-frequency welding can obtain to a certain extent cooling, thereby obtains high-temperature fusant molten carbon steel while effectively having avoided argon arc to add wire feed welding.
The process units of the multiple tube of being made by hot-rolled stainless steel clad steel plate moulding welding of the present invention is to realize like this, comprise successively the transmission mechanism of band plate, band plate twisted into the shaping mechanism of the pipe of tubulose, the welding mechanism of pipe, post processing mechanism, its special feature is that the welding mechanism of pipe comprises that high-frequency welding equipment, argon arc add wire feed welder successively, adds the sizing transfer roller that is provided with pipe between wire feed welder at high-frequency welding equipment, argon arc.During work, the transmission mechanism of band plate is transported to hot-rolled stainless steel composite steel band (plate) band plate is twisted on the shaping mechanism of pipe of tubulose, the shaping mechanism that band plate is twisted into the pipe of tubulose twists into tubulose by hot-rolled stainless steel composite steel band (plate), then deliver on the welding mechanism of pipe, on the welding mechanism of pipe, high-frequency welding equipment is first by the carbon steel joint close welding of pipe, by argon arc, add wire feed welder afterwards the stainless steel joint close of pipe is welded, deliver to afterwards post processing mechanism and carry out weld grinding, sizing, cut.
Here, the Han Jie ∕ wire feed point that argon arc adds wire feed welder be positioned at pipe joint close above, such setting just can processing stainless steel be positioned at the composite pipe of the outer surface of pipe.Or, the Han Jie ∕ wire feed point that argon arc adds wire feed welder be positioned at pipe pipe joint close below, such setting just can processing stainless steel be positioned at the composite pipe of the inner surface of pipe.
The present invention is owing to adopting two-stage welding manner, therefore, have advantages of very close to each other between layer pipe, technique is simple, production cost is low.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of the welding mechanism embodiment 1 of pipe;
Fig. 3 is the structural representation of the welding mechanism embodiment 2 of pipe.
The specific embodiment:
Now in conjunction with the accompanying drawings and embodiments the present invention is described in further detail:
The production method of multiple tube of the present invention is to realize like this, comprise the forming process of pipe, the welding process of pipe, its special feature is that the forming process of pipe is that hot-rolled stainless steel clad steel plate is twisted into tubulose, the welding process of pipe is first to adopt high-frequency welding method that the carbon steel jointing edge on tubulose jointing edge is closely welded together, and then adopts argon arc to add wire feed filling welding method the stainless steel jointing edge on tube-surface shape jointing edge is closely welded together.
In 3-20 seconds after high-frequency welding, just carry out argon arc and add wire feed welding.
The process units embodiment 1 of the multiple tube of being made by hot-rolled stainless steel steel plate of the present invention: as Fig. 1, shown in 2, the process units of multiple tube of the present invention is to realize like this, the transmission mechanism 1 that comprises successively band plate, band plate is twisted into the shaping mechanism 2 of the pipe of tubulose, the welding mechanism 3 of pipe, post processing mechanism 4, post processing mechanism 4 comprises the 4a of weld grinding mechanism, sizing mechanism 4b, cutting mechanism 4c, its special feature is that the welding mechanism 3 of pipe comprises high-frequency welding equipment 3a successively, argon arc adds wire feed welder 3b, at high-frequency welding equipment 3a, argon arc adds the sizing transfer roller 3c that is provided with pipe between wire feed welder 3b.
The Han Jie ∕ wire feed point 3b1 that argon arc adds wire feed welder 3b be positioned at pipe 6 pipe joint close 5 above.
The process units embodiment 2 of the multiple tube of being made by hot-rolled stainless steel clad steel plate moulding welding of the present invention is that the Han Jie ∕ wire feed point 3b1 that argon arc adds wire feed welder on the basis of embodiment 1 is positioned at below the pipe joint close 5 of managing 6.
Claims (2)
1. a hot-rolled stainless steel clad steel plate is made the production method of multiple tube, comprise the forming process of pipe, the welding process of pipe, the forming process that it is characterized in that pipe is that carbon steel/stainless steel clad metal plate is twisted into tubulose, the welding process of pipe is first to adopt high-frequency welding method that the carbon steel jointing edge on tubulose jointing edge is closely welded together, and then adopts argon arc to add wire feed filling welding method the stainless steel jointing edge on tube-surface shape jointing edge is closely welded together.
2. hot-rolled stainless steel clad steel plate according to claim 1 is made the production method of multiple tube, it is characterized in that the interior argon arc that just carries out 3-20 second after high-frequency welding adds wire feed welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110048575.7A CN102152125B (en) | 2011-03-01 | 2011-03-01 | Production method and device for manufacturing composite pipe from composite stainless steel plate by hot rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110048575.7A CN102152125B (en) | 2011-03-01 | 2011-03-01 | Production method and device for manufacturing composite pipe from composite stainless steel plate by hot rolling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102152125A CN102152125A (en) | 2011-08-17 |
| CN102152125B true CN102152125B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110048575.7A Expired - Fee Related CN102152125B (en) | 2011-03-01 | 2011-03-01 | Production method and device for manufacturing composite pipe from composite stainless steel plate by hot rolling |
Country Status (1)
| Country | Link |
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| CN (1) | CN102152125B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272895B (en) * | 2013-06-08 | 2015-03-04 | 青岛武晓集团股份有限公司 | Cold-forming machining method for carbon steel and stainless steel composite welded steel tube |
| CN113245673A (en) * | 2021-04-26 | 2021-08-13 | 叶胡根 | Method and device for manufacturing composite pipe |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354061A (en) * | 2000-11-22 | 2002-06-19 | 中国建筑第八工程局工业设备安装公司一公司 | Stainless steel composite pipe welding method |
| CN2663764Y (en) * | 2003-12-22 | 2004-12-15 | 俞廷标 | Thin-walled composite tube of stainless steel and carbon steel |
| CN2777320Y (en) * | 2003-07-25 | 2006-05-03 | 北京石油化工学院 | Bimetallic composite tube |
| CN101032783A (en) * | 2007-04-16 | 2007-09-12 | 束润涛 | Explosion welding technique of composite steel pipes of stainless steel and carbon steel |
| CN101085455A (en) * | 2007-06-29 | 2007-12-12 | 吉欣（英德）热轧不锈复合钢有限公司 | Method for Manufacturing helix composite steel tube |
| CN101147929A (en) * | 2007-09-18 | 2008-03-26 | 连华平 | Composite stainless steel pipe coating equipment |
| CN101362249A (en) * | 2008-09-12 | 2009-02-11 | 西安向阳航天材料股份有限公司 | Girth welding method of duplex stainless steel bimetal composite pipe |
| CN201997945U (en) * | 2011-03-01 | 2011-10-05 | 何甜灶 | Production installation for hot-rolling stainless steel clad steel plates into clad pipes |
-
2011
- 2011-03-01 CN CN201110048575.7A patent/CN102152125B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354061A (en) * | 2000-11-22 | 2002-06-19 | 中国建筑第八工程局工业设备安装公司一公司 | Stainless steel composite pipe welding method |
| CN2777320Y (en) * | 2003-07-25 | 2006-05-03 | 北京石油化工学院 | Bimetallic composite tube |
| CN2663764Y (en) * | 2003-12-22 | 2004-12-15 | 俞廷标 | Thin-walled composite tube of stainless steel and carbon steel |
| CN101032783A (en) * | 2007-04-16 | 2007-09-12 | 束润涛 | Explosion welding technique of composite steel pipes of stainless steel and carbon steel |
| CN101085455A (en) * | 2007-06-29 | 2007-12-12 | 吉欣（英德）热轧不锈复合钢有限公司 | Method for Manufacturing helix composite steel tube |
| CN101147929A (en) * | 2007-09-18 | 2008-03-26 | 连华平 | Composite stainless steel pipe coating equipment |
| CN101362249A (en) * | 2008-09-12 | 2009-02-11 | 西安向阳航天材料股份有限公司 | Girth welding method of duplex stainless steel bimetal composite pipe |
| CN201997945U (en) * | 2011-03-01 | 2011-10-05 | 何甜灶 | Production installation for hot-rolling stainless steel clad steel plates into clad pipes |
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| CN102152125A (en) | 2011-08-17 |
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Effective date of registration: 20190812 Address after: 528000 Room 101, No. 10, 1st Lane, Xibian Street, Qianqian Village, Lichong Street, Shiwan Town, Chancheng District, Foshan City, Guangdong Province Patentee after: Foshan Yangde Automation Machinery Equipment Co.,Ltd. Address before: 528000 No. 55, Wuxiang, Lanshibei District, Chancheng District, Foshan City, Guangdong Province Co-patentee before: He Zexian Patentee before: He Tianzao |
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