CN103056633A - Tubular transition joint and tubular aluminum-stainless steel transition joint implementation method - Google Patents
Tubular transition joint and tubular aluminum-stainless steel transition joint implementation method Download PDFInfo
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- CN103056633A CN103056633A CN2013100149933A CN201310014993A CN103056633A CN 103056633 A CN103056633 A CN 103056633A CN 2013100149933 A CN2013100149933 A CN 2013100149933A CN 201310014993 A CN201310014993 A CN 201310014993A CN 103056633 A CN103056633 A CN 103056633A
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Abstract
The invention relates to a tubular aluminum-stainless steel transition joint which is a novel functional material and a novel component and is formed by metallurgical bonding of two dissimilar metals incommensurable in melting point and performance on the sections of the metals by the aid of the specific composite technology and the power spinning deformation process. The prepared tubular aluminum-stainless steel transition joint has the characteristic that a stainless steel ring is integrally bonded with a pure nickel transition layer and has the characteristics that an aluminum ring is integrally bonded with a pure titanium transition layer, and the pure nickel transition layer is integrally bonded with the pure titanium transition layer. The joint has a certain strength, particularly needs sufficient bonding strength at the bimetal interface position and is still capable of keeping good air tightness after bearing a certain pressure and temperature change impact (the temperature mainly ranges from -200 DEG C to the normal temperature, and the pressure usually ranges from 2MPa to 12Mpa).
Description
Technical field
The invention belongs to the processing method of metal material processing technical field, particularly a kind of multiunit tube joint.
Background technology
Aluminium-stainless steel tubulose transit joint is mainly used in industry and other cryogenic engineerings such as Coal Chemical Industry of air separation unit and therewith closely-related iron and steel, chemical industry (such as synthetic ammonia, large chemical fertilizer), petrochemical industry (such as PTA, ethene) and in recent years rise.Solved welding (connection) difficult problem of aluminum pressure vessel and stainless steel (or steel) pipeline and instrument nozzle in the above-mentioned industry device.
Under low temperature environment, possess excellent performance because aluminium and aluminium alloy are processed material, therefore be widely used in empty minute and reach in other Cryo Equipment.And aluminium vessel or device to take over stainless steel (or steel) pipeline welding (connection) be a very thorny difficult problem always, both fusing points differ the physical properties such as about 800 ℃ and thermal conductivity, linear expansion coefficient and also differ larger.Common molten solder mode is difficult to realize good welding.Mostly adopt at present flange form to connect, but reliability is very poor, it is large to take up room, and there is potential safety hazard in often evaporating, emitting, dripping or leaking of liquid or gas.The Solder for Al-Cu Joint Welding transit joint that small-sized adapter also has the friction welding adopted to produce, an end and aluminum are taken over welding, and an end carries out copper-stainless-steel (steel) different-metal material welding.But this mode also bothers very much, and copper-steel joint performance and reliability also are difficult to meet design requirement usually, generally are applied to small-bore low aluminium hydraulic pressed connecting pipe and instrument nozzle.
After the nineties in last century, domestic once had many units such as Xibei Inst. of Non-Ferrous Metals, Northwestern Polytechnical University, Beijing Aeronautics Research Inst, Beijing Red optical cable annex factory to coat by pipe, excellent explosive welding; The modes such as friction welding of aluminium bar, copper (stainless steel) rod are manufactured experimently, but all do not obtain breakthrough.No matter be that explosive welding or friction welding aluminium, stainless steel are difficult to form diffusion and dissolve each other except fusing point differs greatly, secondly the disperse of the intermetallic compound of both formation more makes Interface Microstructure and joint performance worsen, and especially almag (such as 5083) is even more serious with the stainless steel welding.Coat the reducing joint that can only obtain below the Ф 60mm by pipe, excellent explosive welding at present, and bearing capacity is lower; Can obtain copper-aluminium joint below the Ф 80mm by friction welding; Welding above dual mode for heavy wall, heavy caliber aluminium-stainless steel tubulose transit joint still feels simply helpless.At present, sky divides and other Cryo Equipment still needs in a large number from France and imported from America with aluminium-stainless steel tube straight coupling, and the present invention will break up monopoly at this point.According to the data that Air Liquid Co announces, the aluminium that can provide-stainless steel tubulose transit joint scope of supply is: Ф 15～Ф 600mm; The highest pressure-bearing 10Mpa; Joint bimetallic interface place temperature is no more than 130 ℃ during welding.French company's product needs to adhere to the thermistor with temperature indication at joint bimetallic interface place when constructing at the scene welding whether temperature surpasses the temperature that limits to monitor herein, stops operation during overtemperature, thereby adjusts speed of welding, cooling and safeguard measure.Therefore, construction and operating efficiency are lower.
Summary of the invention
The present invention seeks to propose a kind of aluminium-stainless steel tubulose transit joint implementation method and tubular configured joint, to satisfy the connection between the different metal pipeline.
Aluminium-stainless steel tubulose transit joint implementation method is characterized in that between aluminium and stainless steel material by the multiple layer metal transition zone with the welding of compound realization aluminium and stainless steel material of repeatedly exploding, and makes aluminum layer thickness reach 15～40mm.
Described aluminium-stainless steel tubulose transit joint implementation method is characterized in that comprising the steps:
(1) take corrosion resistant plate as basic unit, successively nickel plate, titanium plate, aluminium sheet being exploded respectively to be combined into is integrated;
(2) pipe cutting: monolithic composite panel boring is cut into circular material blank, process as pipe through lathe;
(3) rotary press modelling: the pipe cutting ferrule is contained on the shear spinning texturing machine core, begins to make aluminium and stainless steel obtain extending by the shear spinning distortion of 2～5 passages from aluminium one side, reach design length and caliber.
According to the aluminium of described method preparation-stainless steel tubulose transit joint, it is characterized in that having the stainless steel material ring, stainless steel material ring and pure nickel transition zone are combined as a whole; Have simultaneously the aluminium ring, aluminium ring and pure ti interlayer are combined as a whole, and pure nickel transition zone and pure ti interlayer are combined as a whole.
Advantage of the present invention is: 1, adopt the complex technique that repeatedly explodes to realize the good welds of aluminium sheet and corrosion resistant plate, make aluminum layer thickness reach 15～40mm.2, adopted the multiple layer metal transition zone between aluminium and the stainless steel, wherein the metal pure nickel has the fragility of preventing and produces mutually disperse with intermetallic compound; The pure titanium of metal possesses excellent heat-insulating property, and its thermal conductivity factor is about 1/10 of aluminium.Thereby the voltage endurance capability that makes aluminium-stainless joint reaches more than the 16Mpa, and peeling strength reaches more than the 140Mpa, and interface temperature can bear up to 350 ℃ during welding.Aluminium-the reliability of stainless steel tubulose transit joint and the efficient of Site Welding operation have been improved greatly.
Description of drawings
Fig. 1 is tubular configured joint generalized section of the present invention (plane combination).
Fig. 2 is tubular configured joint generalized section of the present invention (curved surface combination).
The specific embodiment
Composite tube joint shown in Fig. 1 or 2 is to implement in accordance with the following steps:
(1) take thick corrosion resistant plate as basic unit, successively nickel plate, titanium plate, aluminium sheet being exploded respectively to be combined into is integrated;
(2) pipe cutting: monolithic composite panel boring is cut into circular material blank, process as pipe through lathe;
(3) rotary press modelling: the pipe cutting ferrule is contained on the shear spinning equipment core, begins to make aluminium and stainless steel obtain extending by the powerful deformation of 2～5 passages from aluminium one side, reach design length and caliber.Make aluminium and stainless steel obtain extending to by powerful deformation and finally make length reach 220～350mm, and aluminium, steel half and half.
According to volume invariance principle before and after the metal material distortion, determine tube blank size, and calculate according to following formula:
L
1=L
0S
0(d
i+S
0)/?S
1(d
i+S
1)
L
1-joint length; L
0-blank length; S
0-blank wall thickness; S
1-joint wall thickness; d
iWarp in the-joint.
According to the aluminium of described method preparation-stainless steel tubulose transit joint, it has stainless steel material ring 1, and stainless steel material ring 1 is combined as a whole with pure nickel transition zone 2; Have simultaneously aluminium ring 4, aluminium ring 4 is combined as a whole with pure ti interlayer 3, and pure nickel transition zone 2 is combined as a whole with pure ti interlayer 3.
Pure nickel transition zone 2 is plane or curvilinear plane with pure ti interlayer 3 faying faces.
Aluminium of the present invention-stainless steel tubulose transit joint is a kind of new functional material and the parts of realizing the metallurgical binding state by the dissimilar metal that extraordinary complex technique and shear spinning deformation technique differ greatly these two kinds of fusing points and performance in its cross section.General length is 200～300mm, diameter Ф 15～Ф 1000mm, wall thickness 2～20mm; Aluminium (5083), stainless steel (ASME SA240-304) half and half.This joint should have certain intensity, and especially bimetallic interface place need possess enough bond strengths, and bear certain pressure and temperature conversion impact (mainly be-200 ℃ to normal temperature; Pressure is generally after 2～12Mpa) still can keep good air-tightness.Extraordinary complex technique of the present invention is ripe, easy to implement; Shear spinning modification technique comes from Space Science and Technology; And the joint pipe is a kind of effectively " destructiveness " check to interface bond strength in the powerful deformation process, and the shear spinning distortion by multi-pass makes interface, land, cross section present stepped, increase bonded area, improved joint interface tensile strength.Therefore, production technology of the present invention is novel, and operation is simple, organizes greatly apart from scope, and cost is 30～50% of imported product.
Claims (6)
1. aluminium-stainless steel tubulose transit joint implementation method is characterized in that between aluminium and stainless steel material by the multiple layer metal transition zone with the welding of compound realization aluminium and stainless steel material of repeatedly exploding, and makes aluminum layer thickness reach 15～40mm.
2. aluminium according to claim 1-stainless steel tubulose transit joint implementation method is characterized in that comprising the steps:
(1) take corrosion resistant plate as basic unit, successively nickel plate, titanium plate, aluminium sheet being exploded respectively to be combined into is integrated;
(2) pipe cutting: monolithic composite panel boring is cut into circular material blank, process as pipe through lathe;
(3) rotary press modelling: the pipe cutting ferrule is contained on the shear spinning equipment core, begins to make aluminium and stainless steel obtain extending by the shear spinning moulding of 2～5 passages from aluminium one side, reach design length and caliber.
3. aluminium according to claim 2-stainless steel tubulose transit joint implementation method is characterized in that being out of shape front and back volume invariance principle according to metal material, determines tube blank size, and calculates according to following formula:
L
1=L
0S
0(d
i+S
0)/?S
1(d
i+S
1)
L
1-joint length; L
0-blank length; S
0-blank wall thickness; S
1-joint wall thickness; d
iWarp in the-joint.
4. aluminium according to claim 2-stainless steel tubulose transit joint implementation method is characterized in that making aluminium and stainless steel obtain extending to by the shear spinning moulding finally makes length reach 220～350mm, and aluminium, steel half and half.
5. the aluminium of described method preparation-stainless steel tubulose transit joint is characterized in that having stainless steel material ring (1) according to claim 1-4, and stainless steel material ring (1) is combined as a whole with pure nickel transition zone (2); Have simultaneously aluminium ring (4), aluminium ring (4) is combined as a whole with pure ti interlayer (3), and pure nickel transition zone (2) is combined as a whole with pure ti interlayer (3).
6. aluminium according to claim 5-stainless steel tubulose transit joint is characterized in that pure nickel transition zone (2) and pure ti interlayer (3) faying face are plane or curvilinear plane.
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| CN2013100149933A CN103056633A (en) | 2013-01-16 | 2013-01-16 | Tubular transition joint and tubular aluminum-stainless steel transition joint implementation method |
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|---|---|---|---|
| CN2013100149933A CN103056633A (en) | 2013-01-16 | 2013-01-16 | Tubular transition joint and tubular aluminum-stainless steel transition joint implementation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113950595A (en) * | 2019-11-15 | 2022-01-18 | 林德有限责任公司 | Transition piece with insulation |
| US20220063019A1 (en) * | 2019-01-15 | 2022-03-03 | Saipem S.P.A. | Improvements in the welding of pipes |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4010965A (en) * | 1974-04-15 | 1977-03-08 | Asahi Kasei Kogyo Kabushiki Kaisha | Pipe joint for connecting different kinds of metallic pipes |
| CN1047990A (en) * | 1990-08-10 | 1990-12-26 | 浙江省乐清铜管件厂 | Pipe Joint Cold Extrusion Forming Process |
| CN1141827A (en) * | 1995-08-03 | 1997-02-05 | 马景云 | Process for production of seamless steel pipe by using plastic deforming method and apparatus thereof |
| WO2000021696A1 (en) * | 1998-10-09 | 2000-04-20 | Wyman-Gordon Company | Apparatus and method for forming a pipe with increased wall-thickness at its ends |
| CN1438080A (en) * | 2002-02-10 | 2003-08-27 | 利奇机械工业股份有限公司 | Aluminum tube cold extrusion manufacturing method |
| CN1939645A (en) * | 2005-09-13 | 2007-04-04 | 普兰西欧洲股份公司 | Composite material and technique for producing same |
| CN101987394A (en) * | 2009-07-31 | 2011-03-23 | 淮北钛钴新金属有限公司 | Method for manufacturing multilayer composite aluminum/steel transition joint |
-
2013
- 2013-01-16 CN CN2013100149933A patent/CN103056633A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4010965A (en) * | 1974-04-15 | 1977-03-08 | Asahi Kasei Kogyo Kabushiki Kaisha | Pipe joint for connecting different kinds of metallic pipes |
| CN1047990A (en) * | 1990-08-10 | 1990-12-26 | 浙江省乐清铜管件厂 | Pipe Joint Cold Extrusion Forming Process |
| CN1141827A (en) * | 1995-08-03 | 1997-02-05 | 马景云 | Process for production of seamless steel pipe by using plastic deforming method and apparatus thereof |
| WO2000021696A1 (en) * | 1998-10-09 | 2000-04-20 | Wyman-Gordon Company | Apparatus and method for forming a pipe with increased wall-thickness at its ends |
| CN1438080A (en) * | 2002-02-10 | 2003-08-27 | 利奇机械工业股份有限公司 | Aluminum tube cold extrusion manufacturing method |
| CN1939645A (en) * | 2005-09-13 | 2007-04-04 | 普兰西欧洲股份公司 | Composite material and technique for producing same |
| CN101987394A (en) * | 2009-07-31 | 2011-03-23 | 淮北钛钴新金属有限公司 | Method for manufacturing multilayer composite aluminum/steel transition joint |
Non-Patent Citations (1)
| Title |
|---|
| 张涛: "《旋压成形工艺》", 31 January 2009 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220063019A1 (en) * | 2019-01-15 | 2022-03-03 | Saipem S.P.A. | Improvements in the welding of pipes |
| CN113950595A (en) * | 2019-11-15 | 2022-01-18 | 林德有限责任公司 | Transition piece with insulation |
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Application publication date: 20130424 |