CN1631569A - Method for manufacturing metal compound pipe by braze welding, hot rolling and continuous welding - Google Patents
Method for manufacturing metal compound pipe by braze welding, hot rolling and continuous welding Download PDFInfo
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- CN1631569A CN1631569A CN 200310117462 CN200310117462A CN1631569A CN 1631569 A CN1631569 A CN 1631569A CN 200310117462 CN200310117462 CN 200310117462 CN 200310117462 A CN200310117462 A CN 200310117462A CN 1631569 A CN1631569 A CN 1631569A
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Abstract
The invention offers a producing way to heat roll and connect the metal complex tube, which contains the following craft: base metal tape, complex metal tape open; wash the complex surface; separately roll; heat roll to complex; cool and cut. The rolling temperature in the invention is 750-950 degC. The metal complex tube made by this way has good features of machine, antisepses and reproduce, so it has large application.
Description
Technical field
The present invention relates to a kind of manufacture method of metal composite pipe, especially a kind of method of utilizing cored solder production continuous welding metal composite pipe.
Background technology
The application of metal composite pipe is mainly based on economy and aim of saving, and the specific use on various device.For example, require to possess the pressure vessel, pipeline of resistance to corrosion etc., adopting the stainless steel tube manufacturing more reasonable, but the cost height; If adopt the same pressure vessel of normal carbon steel pipe and the compound multiple tube manufacturing that makes of stainless steel tube, pipeline etc., the thickness of stainless steel tube only integral thickness 2～10%, so not only satisfy the corrosion resistance and the sufficiently high intensity of container, and reduced cost greatly.In addition, some has the metal material of superior heat resistance, corrosion-resistant and conduction, heat conductivility, as copper, manganese, titanium or chromium etc., the problem that has scarcity of resources, if adopt bilayer or multi-layered composite pipe, not only help saving resource, also can satisfy the special requirement in a lot of engineerings.
At present, metal composite pipe mainly is to adopt mechanical complex method processing and manufacturing, divide weldering composite algorithm, hydraulic pressure composite algorithm, drawing composite algorithm etc. as tubulation unit different metal, or the welding composite algorithm of employing clad steel plate bending welding etc., the shortcoming that the multiple tube that tubulation unit different metal divides weldering composite algorithm, hydraulic pressure composite algorithm and drawing composite algorithm to produce exists is: faying face is a physical bond between two layers of metal, its bond strength is low, the back poor processability of multiple tube (can not bend, processing such as folding, weldering, pressure); The shortcoming that the multiple tube that the welding composite algorithm is produced exists is: because there is the osmosis between the different metal element in the welding of composite bed end face, influence the serviceability of multiple tube.
(patent No.: ZL94108021.7) disclose a kind of metal composite solder prescription, on this base, the inventor is through making great efforts, develop to utilize the new method of this solder production continuous welding composite metal pipe for many years for Chinese patent " a kind of metal composite solder ".
Summary of the invention
The object of the present invention is to provide a kind of new method of making metal composite pipe, utilize the continuous welding metal composite pipe of this method preparation to have the combined strength bination height, cycling processability is good, of many uses.
The objective of the invention is to be achieved by following technical scheme: a kind of manufacture method of brazing hot rolled continuous welding metal composite pipe may further comprise the steps:
(1) be placed on the parent metal roll coil of strip, the plied timber roll coil of strip on the uncoiler respectively:
(2) composite surface for the treatment of of parent metal band after the uncoiling and plied timber band is cleaned out;
(3) on the tubulation unit, divide welded pipe, and place cored solder between the composite surface, obtain the continuous welding clad pipe described treating with parent metal band and plied timber band;
(4) the continuous welding clad pipe that step (3) is obtained quickly heats up to 750 ℃～950 ℃ to carry out hot rolling compound;
(5) obtain the continuous welding metal composite pipe by the scale cutting after the cooling finishing.
According to method of the present invention, the described parent metal roll coil of strip comprises the carbon steel roll coil of strip or the steel alloy roll coil of strip, and the described plied timber roll coil of strip comprises the stainless steel roll coil of strip, copper strips volume or titanium strip coil.
Cored solder is coating, electrodeposited coating or paper tinsel strip shape in the method for the present invention, and thickness is 1～10 micron, enters synchronously and treats on the composite surface.
Method of the present invention can also realize like this: step (4) also can be carried out under inert gas or protection of reducing atmosphere, and hot-rolled temperature is 900 ℃～1050 ℃, more helps improving the combined strength bination at interface recombination rate and interface.
The continuous welding metal composite pipe that utilizes method of the present invention to produce, its mechanical performance, Corrosion Protection and cycling processability are all very good, bond strength height between two layers of metal, its shear strength can reach 210MPa～350MPa, has overcome the deficiency of cycling processability differences such as General Physics machinery multiple tube can not be bent, weldering, pressure; Simultaneously also solve composite plate bending and molding end face and welded different element infiltration problems; And the present invention can realize the interior compound of parent metal material, thereby metal composite pipe is widely used industrial, can produce huge economic benefit and social benefit.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is done to describe further, but do not constitute any limitation of the invention.
As shown in Figure 1, the manufacture method of brazing hot rolled continuous welding metal composite pipe of the present invention, its concrete technological process can be:
The parent metal roll coil of strip, the plied timber roll coil of strip open → treat composite surface cleaning → minute welded pipe and place cored solder → hot rolling compound → adjust chi cutting of cryogenin, existing that each operation division is as follows:
(1) the parent metal roll coil of strip, the uncoiling of the plied timber roll coil of strip: the parent metal roll coil of strip, the plied timber roll coil of strip are placed on uncoiling on the different uncoilers respectively;
(2) treat the composite surface cleaning: the composite surface for the treatment of of parent metal band after the uncoiling and plied timber band is cleaned out, mainly be rust cleaning and the surface and oil contaminant of removing composite surface, be compound creation surface of good condition, concrete grammar can adopt method commonly used in the prior art, as sandblast, pickling, oven dry etc.;
(3) divide welded pipe and place cored solder: with the parent metal band cleaned out and plied timber band welding tube-making respectively in the tubulation unit, and cored solder is placed on treating between the composite surface of two-layer different metal band, the continuous welding clad pipe; The thickness of cored solder is 1～10 micron, can adopt spray, be coated with or method such as coiling enters synchronously and treats on the composite surface.
(4) hot rolling is compound: the continuous welding clad pipe that step (3) is obtained, adopt heating in medium frequency, high-frequency heating or other heat forms according to different requirements, quickly heat up to 750 ℃～950 ℃, enter special milling train hot rolling (or rolling) with general tubulation unit repacking.To the small-bore multiple tube of caliber less than 76m, can be when composite surface be combined closely at base material tube reducing, multiple material hole enlargement motion process, use intermediate frequency, high-frequency heating or other heat forms control adapter section to reach combined temp, according to different size and properties of product requirement, combined temp is between 750 ℃～950 ℃, and the whole set equipment function comprises: manage the motion of hole enlargement, parent tube tube reducing again, heating is compound.Centering, heavy caliber multiple tube (are generally 76mm～406mm) and consider that multiple tube diameter, thickness dress multiple tube bigger than normal, interior are compound, rolling with " adjustable expander " hole enlargement, heating.This step also can be carried out under inert gas or protection of reducing atmosphere, and hot-rolled temperature is 900 ℃～1050 ℃, more helps improving the combined strength bination at interface recombination rate and interface.
(5) promptly obtain the continuous welding metal composite pipe by the scale cutting after the cooling finishing.
Embodiment 1:
Adopting the 2.5mm carbon steel roll coil of strip (the carbon steel model is Q235) is that the parent metal roll coil of strip, the 0.5mm stainless steel roll coil of strip (the stainless steel model is 316L) are the multiple layer roll coil of strip, production 25mm * 3.0mm continuous welding composite steel tube.
At first the plied timber stainless steel roll coil of strip of basic unit's carbon steel roll coil of strip of 2.5mm, 0.5mm is placed on to enter in the cleaning machine after the uncoiler uncoiling and cleans, remove surface and oil contaminant and the oxide on surface for the treatment of composite surface; Send into then and divide welded pipe in the compound tubulation unit, be that 3 microns the cored solder paper tinsel roll coil of strip enters synchronously and is placed between parent metal carbon steel band and the plied timber stainless steel band after with the uncoiler uncoiling simultaneously with thickness, make the continuous welding clad pipe, the continuous welding clad pipe is in high frequency quickly heats up to the flat upright tandem mill that directly enters 12 passages after 750 ℃, and in the continuous welding clad pipe, load onto fixed expander, it is compound to carry out hot rolling; By at flat upright tandem mill, to depress for a short time, the rolling clad pipe external diameter tube reducing that makes of multi-pass, the continuous welding clad pipe decide hole enlargement (micro-hole enlargement) increase soldering strength and is reached mechanical property after rolling; Finishing temperature is controlled at 600 ℃, then cooling fast; At last, multiple tube is carried out finishing, fixed length cutting on request, promptly get the continuous welding composite steel tube.
Embodiment 2
Adopt the 5mm carbon steel roll coil of strip (the carbon steel model is Q235) to produce 176mm * 7mm continuous welding composite steel tube for basic unit's pipe, the 2.5mm plied timber stainless steel roll coil of strip.
At first the plied timber stainless steel roll coil of strip of basic unit's carbon steel roll coil of strip of 5mm, 2.5mm is placed on to enter in the cleaning machine after the uncoiler uncoiling and cleans, remove surface and oil contaminant and the oxide on surface for the treatment of composite surface; Send into then and divide welded pipe in the compound tubulation unit, be that 3 microns the cored solder paper tinsel roll coil of strip enters synchronously and is placed between parent metal carbon steel band and the plied timber stainless steel band after with the uncoiler uncoiling simultaneously with thickness, make the continuous welding clad pipe, the continuous welding clad pipe directly enters after high-frequency heating to 950 ℃ in the flat upright tandem mill of 12 passages, but and in clad pipe, load onto the path transfer expander, it is compound to carry out hot rolling, whole heating and equipment of hot rolling all place airtight container, are filled with the H of 50% (volume) in the container
2N with 50% (volume)
2Gas is as protective gas; By at flat upright tandem mill, to depress for a short time, the rolling clad pipe external diameter tube reducing that makes of multi-pass, the continuous welding clad pipe decide hole enlargement (micro-hole enlargement) increase soldering strength and is reached mechanical property after rolling; Finishing temperature is controlled at 800 ℃, then cooling fast; At last, multiple tube is carried out finishing, fixed length cutting on request, promptly get the continuous welding composite steel tube.
The continuous welding multiple tube that above-mentioned 2 embodiment are obtained carries out the mechanical and physical performance test, the results are shown in Table 1.
The mechanical and physical performance of table 1 continuous welding metal composite pipe
Adopt method of the present invention, can produce the various continuous welding metal composite pipes of nominal diameter 20mm～406mm; Utilize method of the present invention, select different cored solder prescriptions, set combined temp, can realize compound between the various material pipes according to composite demand, answer titanium pipe etc. in multiple aluminum pipe, the carbon steel as answering in the carbon steel in stainless steel tube, the carbon steel in multiple copper pipe, the carbon steel, satisfy different needs.
Claims (4)
1. the manufacture method of a brazing hot rolled continuous welding metal composite pipe is characterized in that may further comprise the steps:
(1) the parent metal roll coil of strip, the plied timber roll coil of strip are placed on uncoiling on the uncoiler respectively;
(2) composite surface for the treatment of of parent metal band after the uncoiling and plied timber band is cleaned out;
(3) on the tubulation unit, divide welded pipe, and place cored solder between the composite surface, obtain the continuous welding clad pipe described treating with parent metal band and plied timber band;
(4) the continuous welding clad pipe that step (3) is obtained quickly heats up to 750 ℃～950 ℃ to carry out hot rolling compound;
(5) obtain the continuous welding metal composite pipe by the scale cutting after the cooling finishing.
2. continuous welding metal composite pipe manufacturing method according to claim 1, the wherein said parent metal roll coil of strip comprises the carbon steel roll coil of strip or the steel alloy roll coil of strip, the described plied timber roll coil of strip comprises the stainless steel roll coil of strip, copper strips volume or titanium strip coil.
3. continuous welding metal composite pipe manufacturing method according to claim 1, wherein the cored solder in the step (3) is coating, electrodeposited coating or paper tinsel strip shape, thickness is 1～10 micron, enters synchronously and treats on the composite surface.
4. continuous welding metal composite pipe manufacturing method according to claim 1, wherein step (4) can be carried out under inert gas or protection of reducing atmosphere, and temperature is 900 ℃～1050 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101174623A CN1311925C (en) | 2003-12-22 | 2003-12-22 | Method for manufacturing metal compound pipe by braze welding, hot rolling and continuous welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101174623A CN1311925C (en) | 2003-12-22 | 2003-12-22 | Method for manufacturing metal compound pipe by braze welding, hot rolling and continuous welding |
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| Publication Number | Publication Date |
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| CN1631569A true CN1631569A (en) | 2005-06-29 |
| CN1311925C CN1311925C (en) | 2007-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2003101174623A Expired - Fee Related CN1311925C (en) | 2003-12-22 | 2003-12-22 | Method for manufacturing metal compound pipe by braze welding, hot rolling and continuous welding |
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| CN (1) | CN1311925C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100484703C (en) * | 2005-06-08 | 2009-05-06 | 东园金属工业株式会社 | Method for manufacturing elliptic anticollision beam of vehicle |
| 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 |
| CN103170521A (en) * | 2011-12-20 | 2013-06-26 | 北京隆盛泰科石油管科技有限公司 | Method for producing inner liner bimetal composite tube through adopting stepping diameter expansion technology |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3165828A (en) * | 1960-09-16 | 1965-01-19 | Revere Copper & Brass Inc | Method of roll-bonding copper to steel |
| CN1044585C (en) * | 1994-07-08 | 1999-08-11 | 孟庆连 | Method for continuously making metal composite sheet or composite coil |
| JPH08215743A (en) * | 1995-02-15 | 1996-08-27 | Usui Internatl Ind Co Ltd | Multiple winding metallic tube and its production and apparatus therefor |
| JP3034845B2 (en) * | 1997-07-18 | 2000-04-17 | エンドレス ウント ハウザー フローテック アクチエンゲゼルシャフト | Use of silver / copper / palladium hard solder and method of manufacturing composite device |
| CN1245098A (en) * | 1998-08-13 | 2000-02-23 | 李庆祺 | Technology for producing metallic composition by means of soldering technique and principle |
| US6092556A (en) * | 1998-10-28 | 2000-07-25 | Bundy Corporation | Multi-wall tube |
| CN1104328C (en) * | 1999-04-08 | 2003-04-02 | 孟庆连 | Technology for periodically semi-continuous production of coiled composite metal band |
| CN2577076Y (en) * | 2002-11-11 | 2003-10-01 | 新日钢制品有限公司 | Soldered multiple-unit tube |
-
2003
- 2003-12-22 CN CNB2003101174623A patent/CN1311925C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100484703C (en) * | 2005-06-08 | 2009-05-06 | 东园金属工业株式会社 | Method for manufacturing elliptic anticollision beam of vehicle |
| 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 |
| CN103170521A (en) * | 2011-12-20 | 2013-06-26 | 北京隆盛泰科石油管科技有限公司 | Method for producing inner liner bimetal composite tube through adopting stepping diameter expansion technology |
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| Publication number | Publication date |
|---|---|
| CN1311925C (en) | 2007-04-25 |
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Granted publication date: 20070425 Termination date: 20131222 |