CN101690992A - Methods for preparing transition joint of different metal materials - Google Patents
Methods for preparing transition joint of different metal materials Download PDFInfo
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- CN101690992A CN101690992A CN200910309204A CN200910309204A CN101690992A CN 101690992 A CN101690992 A CN 101690992A CN 200910309204 A CN200910309204 A CN 200910309204A CN 200910309204 A CN200910309204 A CN 200910309204A CN 101690992 A CN101690992 A CN 101690992A
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Abstract
The invention provides methods for preparing a transition joint of different metal materials, relates to the methods for preparing the joint of the different metal materials, and solves the problems of low reliability and poor gas tightness of the joint of different metal materials by adopting the prior connecting method. The first method comprises the following steps: 1, grinding a metal material A; 2, deoiling and cleaning the metal material A, heating the metal material A and preserving the heat under an air condition; 3, performing hot pressing joining of the heated metal material A and a metal material B; 4, preserving the heat, and then obtaining the transition joint of the different metal materials. The second method comprises the following steps: 1, grinding the metal material A; 2, deoiling and cleaning the metal material A, heating the metal material A and preserving the heat under a vacuum or inert gas condition; 3, performing hot pressing joining of the heated metal material A and a metal material B; 4, preserving the heat and then obtaining the transition joint of the different metal materials. The transition joint of the different metal material prepared by the methods has the advantages of high connection strength, good air tightness of the joint, high working reliability and the like.
Description
Technical field
The present invention relates to prepare the method for different metal materials joint.
Background technology
Aluminium alloy is in light weight, corrosion resistance good, has obtained using widely in the national economy every field.Aluminium alloy has good cryogenic property, therefore in fields such as space flight, aviation, refrigeration, transportations, widely applies aluminium alloy to make low-temperature pressure container.This container usually requires to be connected with extraneous with pipeline, as being connected with pipelines such as stainless steel, titanium alloy, copper alloys.Because the difference of alloy on hot property and mechanical property such as aluminium and steel, copper, titaniums, and produce the strong trend of compound between brittle metal in joint interface, it is very difficult to cause obtaining reliable foreign material transit joint.With general melt welding method, very easily in joint, generate compound between a large amount of brittle metals between two kinds of materials, worsen joint performance, can't obtain reliable welding.Directly connect with mechanical means, because the aluminum ratio stainless steel soft, the aluminium coupling part is very easily destroyed, and joint does not possess air-tightness, has limited its range of application.
Summary of the invention
The present invention exists Joint Reliability to hang down the defective that reaches poor air-tightness in order to solve the dissimilar metal that existing aluminium alloy or aluminium is connected with the method for attachment of stainless steel, titanium alloy or copper alloy, and the method for preparing transition joint of different metal materials is provided.
The present invention prepares the method for transition joint of different metal materials and carries out according to following steps: one, the end of metal material A is processed into 10 °～50 ° tapering, height of conical surface is 4～70mm, and the surface smoothness that makes metal material A of polishing is
Two, the metal material A that step 1 is polished and metal material B use the acetone cleaning of deoiling, and metal material A is heated to 100～350 ℃ and be incubated 10～180min, and metal material B is heated to 300～580 ℃ and be incubated 10～180min; Three, be to carry out hot pressing under 10～1000kN condition to be connected the conical surface that metal material A is polished and all to be pressed in the inner chamber of metal material B the acquisition joint with metal material A and the metal material B of insulation at pressure; Four, the joint that step 3 is obtained is incubated 0～600min under 400～600 ℃ condition, promptly obtains the transit joint of different metal materials; Wherein the metal material A of step 1 is stainless steel, titanium alloy, titanium, copper or copper alloy; The metal material B of step 2 is aluminium alloy or aluminium.
The another kind of method for preparing transition joint of different metal materials of the present invention is carried out according to following steps: one, the end of metal material A is processed into 10 °～50 ° tapering, height of conical surface is 4～70mm, and the surface smoothness that makes metal material A of polishing is
Two, metal material A that step 1 is polished and metal material B clean with acetone and are placed in the heating furnace after deoiling, and two kinds of materials are heated to 300～580 ℃ and be incubated 10～180min under vacuum or inert gas shielding condition; Three, the metal material A with insulation is to carry out hot pressing under 10～1000kN condition to be connected with metal material B at pressure, obtains joint; Four, the joint that step 3 is obtained is incubated 0～600min under 400～600 ℃ condition; Promptly obtain the transit joint of different metal materials; Wherein the metal material A of step 1 is stainless steel, titanium alloy, titanium, copper or copper alloy; The metal material B of step 2 is aluminium alloy or aluminium.
The principle of two kinds of methods of the present invention is: at a certain temperature, the end that will have a hard material (as stainless steel, titanium alloy, copper alloy etc.) of certain taper by pressure is pressed into plasticity preferably in the soft material (as aluminium alloy).In process of press in, aluminium alloy deforms and makes itself and stainless steel surfaces produce very big stress, and contact interface is activated, and forming dislocation density increases.At 400～600 ℃, help the metallurgical diffusion of material, be formed on the strong bonded at interface, its principle schematic is as shown in Figure 1.
Two kinds of methods that the present invention prepares transition joint of different metal materials all have the following advantages: 1, method heating-up temperature of the present invention is low, two kinds connect mother metal and do not melt, can not generate excessive intermetallic compound at the interface, pass through DIFFUSION TREATMENT, atom diffuses to form firm metallurgical binding mutually at the interface, the aluminium side of the transit joint of preparing in this way easily is connected with aluminium alloy with argon arc welding method, stainless steel (copper alloy, titanium alloy) the corresponding and stainless steel (copper alloy of side, titanium alloy) welding, aluminium and alloy thereof and stainless steel have been solved, titanium alloy, connection difficult problem between the xenogenesis pipe fittings such as copper alloy, and the application of succeeding; 2, the bonding strength of the transition joint of different metal materials of the present invention's preparation is higher than the intensity of mother metal aluminium alloy, in the fracture of mother metal aluminum or aluminum alloy place, but the crack appears in joint not, the Joint Reliability height, and the tubing of transit joint has good vacuum-tightness, can reach 10
-6Below the Pa.L/s.
Description of drawings
Fig. 1 is the catenation principle schematic diagram of the inventive method, and wherein 1 is metal material A, and 2 is metal material B, and 3 is the used mould of fixing metal material; Fig. 2 is prepared aluminium alloy and a stainless steel transition conduit joint photo of the specific embodiment 18; Fig. 3 is the prepared aluminium alloy of the specific embodiment 18 and the parting line scanning curve of stainless steel transit joint, wherein contrast bright part in the left side is a stainless steel parts, contrast dark part in the right is the aluminium alloy part, and upper curve is an Al composition scanning curve, and lower curve is a Fe composition surface sweeping curve; Fig. 4 is the prepared aluminium alloy of the specific embodiment 18 and the photo of stainless steel transit joint fracture aluminium alloy one side; Fig. 5 is the shape appearance figure of the faying face of prepared aluminium alloy of the specific embodiment 18 and stainless steel transit joint; Fig. 6 is the shape appearance figure of the faying face of prepared aluminium alloy of the specific embodiment 19 and stainless steel transit joint.
The specific embodiment
Technical solution of the present invention is not limited to the following cited specific embodiment, also comprises any combination between each specific embodiment.
The specific embodiment one: present embodiment prepares the method for transition joint of different metal materials and carries out according to following steps: one, the end of metal material A is processed into 10 °～50 ° tapering, height of conical surface is 4～70mm, and the surface smoothness that makes metal material A of polishing is
Two, the metal material A that step 1 is polished and metal material B use the acetone cleaning of deoiling, and metal material A is heated to 100～350 ℃ and be incubated 10～180min, and metal material B is heated to 300～580 ℃ and be incubated 10～180min; Three, be to carry out hot pressing under 10～1000kN condition to be connected the conical surface that metal material A is polished and all to be pressed in the inner chamber of metal material B the acquisition joint with metal material A and the metal material B of insulation at pressure; Four, the joint that step 3 is obtained is incubated 0～600min under 400～600 ℃ condition, promptly obtains the transit joint of different metal materials; Wherein the metal material A of step 1 is stainless steel, titanium alloy, titanium, copper or copper alloy; The metal material B of step 2 is aluminium alloy or aluminium.
Present embodiment prepare transition joint of different metal materials method principle schematic as shown in Figure 1.
The transition joint of different metal materials of present embodiment preparation can be processed joint with mechanical means, and the tubular configured joint photo after the processing as shown in Figure 2.
The specific embodiment two: the difference of the present embodiment and the specific embodiment one is: in the step 1 end of metal material A is processed into 20 °～40 ° tapering, the surface smoothness that makes metal material A of polishing is
Other step and parameter are identical with the specific embodiment one.
The specific embodiment three: the difference of the present embodiment and the specific embodiment one is: in the step 1 end of metal material A is processed into 20 °～40 ° tapering, the surface smoothness that makes metal material A of polishing is
Other step and parameter are identical with the specific embodiment one.
The specific embodiment four: the difference of the present embodiment and the specific embodiment two to three is: in the step 2 metal material A is heated to 200～300 ℃ and be incubated 30～150min, metal material B is heated to 400～500 ℃ and be incubated 30～150min.Other step and parameter are identical with the specific embodiment two to three.
The specific embodiment five: the difference of the present embodiment and the specific embodiment two to three is: in the step 2 metal material A is heated to 250～300 ℃ and be incubated 60～120min, metal material B is heated to 400～550 ℃ and be incubated 60～120min.Other step and parameter are identical with the specific embodiment two to three.
The specific embodiment six: the difference of the present embodiment and the specific embodiment two to three is: in the step 2 metal material A is heated to 290 ℃ and be incubated 90min, metal material B is heated to 500 ℃ and be incubated 90min.Other step and parameter are identical with the specific embodiment two to three.
The specific embodiment seven: present embodiment with the difference of the specific embodiment four to six is: the metal material A with insulation in the step 3 is to carry out hot pressing under 200～800kN condition to be connected with metal material B at pressure.Other step and parameter are identical with the specific embodiment four to six.
The specific embodiment eight: present embodiment with the difference of the specific embodiment four to six is: the metal material A with insulation in the step 3 is to carry out hot pressing under 400～600kN condition to be connected with metal material B at pressure.Other step and parameter are identical with the specific embodiment four to six.
The specific embodiment nine: present embodiment with the difference of the specific embodiment four to six is: the metal material A with insulation in the step 3 is to carry out hot pressing under the 500kN condition to be connected with metal material B at pressure.Other step and parameter are identical with the specific embodiment four to six.
The specific embodiment ten: the difference of the present embodiment and the specific embodiment seven to nine is: the transit joint that in the step 4 step 3 is obtained is incubated 100～500min under 450～550 ℃ condition.Other step and parameter are identical with the specific embodiment seven to nine.
The specific embodiment 11: the difference of the present embodiment and the specific embodiment seven to nine is: the transit joint that in the step 4 step 3 is obtained is incubated 200～400min under 480～520 ℃ condition.Other step and parameter are identical with the specific embodiment seven to nine.
The specific embodiment 12: the difference of the present embodiment and the specific embodiment seven to nine is: the transit joint that in the step 4 step 3 is obtained is incubated 300min under 500 ℃ condition.Other step and parameter are identical with the specific embodiment seven to nine.
The specific embodiment 13: the difference of the present embodiment and the specific embodiment seven to nine is: the transit joint that in the step 4 step 3 is obtained is incubated 0min under 400～600 ℃ condition.Other step and parameter are identical with the specific embodiment seven to nine.
The joint of transit joint that present embodiment prepares different metal materials is intact, and joint does not have the crack, the Joint Reliability height, in conjunction with atom at the interface spread, leak rate is for being lower than 10
-6Pa.L/s.
The specific embodiment 14: the difference of the present embodiment and the specific embodiment seven to nine is: the transit joint that in the step 4 step 3 is obtained is incubated 1～600min under 400～600 ℃ condition.Other step and parameter are identical with the specific embodiment seven to nine.
Present embodiment prepares the transit joint of different metal materials, and along with the rising of temperature atom diffusion at the interface is more abundant, joint does not have the crack, and the Joint Reliability height interatomicly mutually combines closelyr, and leak rate is for being lower than 10
-6Pa.L/s.
The specific embodiment 15: the difference of the present embodiment and the specific embodiment ten to 12 is: the metal material A in the step 1 is titanium alloy T A4, titanium alloy T A5, titanium alloy T A6, titanium alloy T A7, titanium alloy T A9, titanium alloy T A10, titanium alloy T B2, titanium alloy T B3, titanium alloy T B4, titanium alloy T C1, titanium alloy T C2, titanium alloy T C3, titanium alloy TC 4, titanium alloy T C6, titanium alloy T C9, titanium alloy titanium alloy T C10, titanium alloy T C11 or titanium alloy T C12.Other step and parameter are identical with the specific embodiment ten to 12.
The specific embodiment 16: the difference of the present embodiment and the specific embodiment ten to 12 is: when the metal material A in the step 1 was copper alloy, copper alloy was copper alloy TU1, copper alloy TU2, copper alloy T1, copper alloy T2, copper alloy TP1, copper alloy TP2, copper alloy TAg0.1, copper alloy H90, copper alloy H70, copper alloy H68, copper alloy H65, copper alloy H63, copper alloy H62, copper alloy QSn4-0.3, copper alloy QSn6.5-0.1, copper alloy QSn8-0.3, copper alloy QSn6.5-0.4, copper alloy BZn18-18, copper alloy BZn18-26, copper alloy BZn15-20 or copper alloy BZn18-10.Other step and parameter are identical with the specific embodiment ten to 12.
TU1 is an oxygen-free copper in the present embodiment, T1, TU2, T2, TP1 and TP2 are red copper, TAg0.1 is a silver-bearing copper, H90, H70, H68, H65, H63 and H62 are brass, QSn4-0.3, QSn6.5-0.1, QSn8-0.3 and QSn6.5-0.4 are tin bronze, and BZn18-18, BZn18-26, BZn15-20 and BZn18-10 are ormolu.
The specific embodiment 17: the difference of the present embodiment and the specific embodiment ten to 12 is: when the metal material B in the step 1 was aluminium alloy, aluminium alloy was aluminium alloy 5A02, aluminium alloy 5A03, aluminium alloy 5A04, aluminium alloy 5A05, aluminium alloy 5A06, aluminium alloy 5A30, aluminium alloy 2A01, aluminium alloy 2A11, aluminium alloy 2A12, aluminium alloy 2B16, aluminium alloy 2A80, aluminium alloy 2A90, aluminium alloy 2A14, aluminium alloy 7A09, aluminium alloy ZAlSi7Mn, aluminium alloy ZAlSi12, aluminium alloy ZAlSi5Cu1Mg, aluminium alloy ZAlSi5Mn, aluminium alloy ZAlSi5MnCdVA, aluminium alloy ZAlMg10 or aluminium alloy ZAlMg5Si.Aluminium is fine aluminium 1060.Other step and parameter are identical with the specific embodiment ten to 12.
5A02,5A03,5A04,5A05,5A06,5A30 and 2A01 are rustproof aluminum alloy in the present embodiment, 2A11,2A12 and 2B16 are duralumin, 2A80,2A90 and 2A14 are wrought aluminium, 7A09 and ZAlSi7Mn are superduralumin, ZAlSi12, ZAlSi5Cu1Mg, ZAlSi5Mn, ZAlSi5MnCdVA, ZAlMg10 and ZAlMg5Si are Birmasil, and 1060 is fine aluminium.
The specific embodiment 18: present embodiment prepares the method for transition joint of different metal materials and carries out according to following steps: one, the end of metal material A is processed into 20 ° tapering, height of conical surface is 20mm, and the surface smoothness that makes metal material A of polishing is
Two, the metal material A that step 1 is polished and metal material B use acetone cleanings of deoiling, and metal material A is heated to 280 ℃, metal material B is heated to 520 ℃, and two kinds of materials after will heating are incubated 10～180min; Three, the metal material A after will heating is to carry out hot pressing under the 500kN condition to be connected with metal material B at pressure, obtains joint; Four, the joint that step 3 is obtained is incubated 0min under 500 ℃ condition, promptly obtains the transit joint of different metal materials; Wherein the metal material A of step 1 is a stainless steel; The metal material B of step 2 is the 5A04 aluminium alloy.
The stainless steel of present embodiment preparation and the transit joint interface of aluminium alloy are analyzed, as shown in Figure 3, by aluminium alloy and stainless joint component distributing curve, can see at aluminium alloy and stainless steel and not have tangible conversion zone at the interface, the element distribution curve is mild at the interface, become concentration gradient to change, show that have diffusion in unit at the interface takes place, thereby formed firm metallurgical binding.Bonding strength to transit joint is tested, and intensity is up to 235MPa, the joint fracture that separates at the pattern of aluminium alloy side as shown in Figure 4, as can be seen from Figure 4 fracture apperance presents tangible dimple shape, and aluminium alloy and stainless steel counterdiffusion mutually are described.The shape appearance figure of the faying face of aluminium alloy and stainless steel transit joint as shown in Figure 5, as can be seen from the figure aluminium alloy combines completely with stainless steel, transition zone is not obvious, joint does not have the crack, the Joint Reliability height.Aluminium alloy stainless steel joint for pipeline to welding has carried out suppressing leak test, at first fetches water and presses 3～4MPa, then carries out the 1.5MPa gas pressure test, and joint is intact.Carry out the vacuum leak hunting test with helium mass analyzer, leak rate is less than 10
-6Pa.L/s.
The specific embodiment 19: the difference of the present embodiment and the specific embodiment 18 is: the transit joint that in the step 4 step 3 is obtained is incubated 300min under 500 ℃ condition; Other steps and parameter are identical with the specific embodiment 18.
The shape appearance figure of the faying face of present embodiment aluminium alloy and stainless steel transit joint as shown in Figure 6, bright place, left side is a stainless steel, the right side more secretly is the aluminium alloy mother metal, the centre is because the transition zone that the long-time insulation of high temperature diffuses to form, aluminium alloy stainless steel joint for pipeline to welding has carried out suppressing leak test, at first fetch water and press 3～4MPa, then carry out the 1.5MPa gas pressure test, joint is intact.Carry out the vacuum leak hunting test with helium mass analyzer, leak rate is less than 10
-6Pa.L/s.
The specific embodiment 20: the difference of the present embodiment and the specific embodiment 18 is: the metal material A of step 1 is TC4; The metal material B of step 2 is 1060 aluminium; Other steps and parameter are identical with the specific embodiment 18.
TC4 and 1060 aluminium tube joints to the present embodiment welding have carried out suppressing leak test, at first fetch water and press 3～4MPa, then carry out the 1.5MPa gas pressure test, and joint is intact.Carry out the vacuum leak hunting test with helium mass analyzer, leak rate is less than 10
-6Pa.L/s; Butt joint intensity is tested, when intensity reaches 70MPa, and the fracture of 1060 aluminium, joint does not have the crack.
The specific embodiment 21: the difference of the present embodiment and the specific embodiment 18 is: the metal material A of step 1 is a T1 copper; The metal material B of step 2 is 1060 aluminium; Other steps and parameter are identical with the specific embodiment 18.
T1 copper and 1060 aluminium tube joints to the present embodiment welding have carried out suppressing leak test, at first fetch water and press 3～4MPa, then carry out the 1.5MPa gas pressure test, and joint is intact.Carry out the vacuum leak hunting test with helium mass analyzer, leak rate is less than 10
-6Pa.L/s; Butt joint intensity is tested, when intensity reaches 72MPa, and the fracture of 1060 aluminium, joint does not have the crack, the Joint Reliability height.
The specific embodiment 22: the difference of the present embodiment and the specific embodiment 18 is: the metal material A of step 1 is a stainless steel; The metal material B of step 2 is the 5A03 aluminium alloy; Other steps and parameter are identical with the specific embodiment 18.
Stainless steel and 5A03 aluminium-alloy pipe joint to the present embodiment welding have carried out suppressing leak test, at first fetch water and press 3～4MPa, then carry out the 1.5MPa gas pressure test, and joint is intact.Carry out the vacuum leak hunting test with helium mass analyzer, is leak rate less than 5? 0
-7Pa.L/s; Butt joint intensity is tested, when intensity reaches 242MPa, and the fracture of 5A03 aluminium alloy, joint does not have the crack, the Joint Reliability height.
The specific embodiment 23: present embodiment prepares the method for the transit joint of different metal materials and carries out according to following steps: one, the end of metal material A is processed into 10 °～50 ° tapering, height of conical surface is 4～70mm, and the surface smoothness that makes metal material A of polishing is
Two, metal material A that step 1 is polished and metal material B clean with acetone and deoil, and are placed in the heating furnace after assembling, and two kinds of materials are heated to 300～580 ℃ and be incubated 10～180min under vacuum or inert gas shielding condition; Three, the metal material A with insulation is to carry out hot pressing under 10～1000kN condition to be connected with metal material B at pressure, obtains joint; Four, the joint that step 3 is obtained is incubated 0～600min under 400～600 ℃ condition; Promptly obtain the transit joint of different metal materials; Wherein the metal material A of step 1 is stainless steel, titanium alloy, titanium, copper or copper alloy; The metal material B of step 2 is aluminium alloy or aluminium.
The specific embodiment 24: the difference of the present embodiment and the specific embodiment 23 is: in the step 1 end of metal material A is processed into 20 °～40 ° tapering, the surface smoothness that makes metal material A of polishing is
Other step and parameter are identical with the specific embodiment 23.
The specific embodiment 25: the difference of the present embodiment and the specific embodiment 23 is: in the step 1 end of metal material A is processed into 20 ° tapering, the surface smoothness that makes metal material A of polishing is
Other step and parameter are identical with the specific embodiment 23.
The specific embodiment 26: the difference of the present embodiment and the specific embodiment 23 to 25 is: the vacuum in the step 2 under vacuum condition is 1 * 10
-2～1 * 10
-5Torr.Other step and parameter are identical with the specific embodiment 23 to 20 the May 4ths.
The specific embodiment 27: the difference of the present embodiment and the specific embodiment 23 to 25 is: the vacuum in the step 2 under vacuum condition is 3 * 10
-4Torr.Other step and parameter are identical with the specific embodiment 23 to 25.
The specific embodiment 28: the difference of the present embodiment and the specific embodiment 23 to 25 is: inert gas is helium, argon gas or nitrogen in the step 2.Other step and parameter are identical with the specific embodiment 23 to 25.
The specific embodiment 29: the difference of the present embodiment and the specific embodiment 22 to 28 is: in the step 2 two kinds of materials are heated to 350～550 ℃ and be incubated 40～150min.Other step and parameter are identical with the specific embodiment 22 to 28.
The specific embodiment 30: the difference of the present embodiment and the specific embodiment 22 to 28 is: in the step 2 two kinds of materials are heated to 450～520 ℃ and be incubated 70～120min.Other step and parameter are identical with the specific embodiment 22 to 28.
The specific embodiment 31: the difference of the present embodiment and the specific embodiment 22 to 28 is: in the step 2 two kinds of materials are heated to 490 ℃ and be incubated 100min.Other step and parameter are identical with the specific embodiment 22 to 28.
The specific embodiment 32: present embodiment with the difference of the specific embodiment 23 to 31 is: the metal material A with insulation in the step 3 is to carry out hot pressing under 200～800kN condition to be connected with metal material B at pressure.Other step and parameter are identical with the specific embodiment 23 to 31.
The specific embodiment 33: present embodiment with the difference of the specific embodiment 23 to 31 is: the metal material A with insulation in the step 3 is to carry out hot pressing under 400～600kN condition to be connected with metal material B at pressure.Other step and parameter are identical with the specific embodiment 23 to 31.
The specific embodiment 34: present embodiment with the difference of the specific embodiment 23 to 31 is: the metal material A with insulation in the step 3 is to carry out hot pressing under the 500kN condition to be connected with metal material B at pressure.Other step and parameter are identical with the specific embodiment 23 to 31.
The specific embodiment 35: the difference of the present embodiment and the specific embodiment 23 to 31 is: the transit joint that in the step 4 step 3 is obtained is incubated 100～500min under 450～550 ℃ condition.Other step and parameter are identical with the specific embodiment 23 to 31.
The specific embodiment 36: the difference of the present embodiment and the specific embodiment 23 to 31 is: the transit joint that in the step 4 step 3 is obtained is incubated 200～400min under 480～520 ℃ condition.Other step and parameter are identical with the specific embodiment 23 to 31.
The specific embodiment 37: the difference of the present embodiment and the specific embodiment 23 to 31 is: the transit joint that in the step 4 step 3 is obtained is incubated 300min under 500 ℃ condition.Other step and parameter are identical with the specific embodiment 23 to 31.
The specific embodiment 38: the difference of the present embodiment and the specific embodiment 23 to 31 is: the transit joint that in the step 4 step 3 is obtained is incubated 0min under 400～600 ℃ condition.Other step and parameter are identical with the specific embodiment 23 to 31.
The joint of transit joint that present embodiment prepares different metal materials is intact, does not have the crack, and the atom at the interface of the high combination of Joint Reliability spreads, and leak rate is for being lower than 10
-6Pa.L/s.
The specific embodiment 39: the difference of the present embodiment and the specific embodiment 23 to 37 is: the transit joint that in the step 4 step 3 is obtained is incubated 1～600min under 400～600 ℃ condition.Other step and parameter are identical with the specific embodiment 23 to 37.
Present embodiment prepares the transit joint of different metal materials, does not have the crack, and the Joint Reliability height along with the rising of temperature atom diffusion at the interface is more abundant, interatomicly mutually combines closelyr, and leak rate is for being lower than 10
-6Pa.L/s.
The specific embodiment 40: the difference of the present embodiment and the specific embodiment 23 to 39 is: when the metal material A in the step 1 was titanium alloy, titanium alloy was TA4, TA5, TA6, TA7, TA9, TA10, TB2, TB3, TB4, TC1, TC2, TC3, TC4, TC6, TC9, TC10, TC11 or TC12.Other step and parameter are identical with the specific embodiment 23 to 39.
Joint air-tightness after present embodiment metal material A connects during for titanium alloy is 0.5 * 10
-6～1 * 10
-6Pa.L/s.
The specific embodiment 41: the difference of the present embodiment and the specific embodiment 23 to 39 is: when the metal material A in the step 1 was copper alloy, copper alloy was TU1, TU2, T2, TP1, TP2, TAg0.1, H90, H70, H68, H65, H63, H62, QSn4-0.3, QSn6.5-0.1, QSn8-0.3, QSn6.5-0.4, BZn18-18, BZn18-26, BZn15-20 or BZn18-10.Other step and parameter are identical with the specific embodiment 23 to 39.
Joint air-tightness after present embodiment metal material A connects during for copper alloy is 1 * 10
-7～0.5 * 10
-6Pa.L/s.
TU1 is an oxygen-free copper in the present embodiment, TU2, T2, TP1 and TP2 are red copper, TAg0.1 is a silver-bearing copper, H90, H70, H68, H65, H63 and H62 are brass, QSn4-0.3, QSn6.5-0.1, QSn8-0.3 and QSn6.5-0.4 are tin bronze, and BZn18-18, BZn18-26, BZn15-20 and BZn18-10 are ormolu.
The specific embodiment 42: the difference of the present embodiment and the specific embodiment 23 to 39 is: when the metal material B in the step 1 was aluminium alloy, aluminium alloy was 5A02,5A03,5A04,5A05,5A30,2A01,2A11,2A12,2B16,2A80,2A90,2A14,7A09, ZAlSi7Mn, ZAlSi12, ZAlSi5Cu1Mg, ZAlSi5Mn, ZAlSi5MnCdVA, ZAlMg10 or ZAlMg5Si.Other step and parameter are identical with the specific embodiment 23 to 39.
Joint air-tightness after present embodiment metal material B connects during for aluminium alloy is 0.8 * 10
-7～1 * 10
-6Pa.L/s.
5A02,5A03,5A04,5A05,5A30 and 2A01 are rustproof aluminum alloy in the present embodiment, 2A11,2A12 and 2B16 are duralumin, 2A80,2A90 and 2A14 are wrought aluminium, 7A09 and ZAlSi7Mn are superduralumin, and ZAlSi12, ZAlSi5Cu1Mg, ZAlSi5Mn, ZAlSi5MnCdVA, ZAlMg10 and ZAlMg5Si are Birmasil.
The specific embodiment 43: present embodiment prepares the method for the transit joint of different metal materials and carries out according to following steps: one, the end of metal material A is processed into 20 ° tapering, height of conical surface is 30mm, and the surface smoothness that makes metal material A of polishing is
Two, metal material A that step 1 is polished and metal material B clean with acetone and are placed in the heating furnace after deoiling, and two kinds of materials are heated to 480 ℃ and be incubated 60min under vacuum or inert gas shielding condition; Three, the metal material A with insulation is to carry out hot pressing under the 500kN condition to be connected with metal material B at pressure, obtains joint; Four, the joint that step 3 is obtained is incubated 50min under 500 ℃ condition; Promptly obtain the transit joint of different metal materials; Wherein the metal material A of step 1 is a stainless steel; The metal material B of step 2 is 1060 aluminium.
Stainless steel and 1060 aluminium tube joints to the present embodiment welding have carried out suppressing leak test, at first fetch water and press 3～4MPa, then carry out the 1.5MPa gas pressure test, and joint is intact, the Joint Reliability height.Carry out the vacuum leak hunting test with helium mass analyzer, leak rate is less than 10
-6Pa.L/s; Butt joint intensity is tested, when intensity reaches 74MPa, and the fracture of 1060 aluminium, joint does not have the crack.
The specific embodiment 44: the difference of the present embodiment and the specific embodiment 43 is: it is TC4 that step 1 gets metal material A; The metal material B of step 2 is 1060 aluminium; Other steps and parameter are identical with the specific embodiment 43.
TC4 and 1060 aluminium tube joints to the present embodiment welding have carried out suppressing leak test, at first fetch water and press 3～4MPa, then carry out the 1.5MPa gas pressure test, and joint is intact, the Joint Reliability height.Carry out the vacuum leak hunting test with helium mass analyzer, leak rate is less than 10
-6Pa.L/s; Butt joint intensity is tested, when intensity reaches 72MPa, and the fracture of 1060 aluminium, joint does not have the crack.
The specific embodiment 45: the difference of the present embodiment and the specific embodiment 43 is: it is T1 copper that step 1 gets metal material A; The metal material B of step 2 is 1060 aluminium; Other steps and parameter are identical with the specific embodiment 42.
T1 copper and 1060 aluminium tube joints to the present embodiment welding have carried out suppressing leak test, at first fetch water and press 3～4MPa, then carry out the 1.5MPa gas pressure test, and joint is intact, the Joint Reliability height.Carry out the vacuum leak hunting test with helium mass analyzer, leak rate is less than 10
-6Pa.L/s; Butt joint intensity is tested, when intensity reaches 72MPa, and the fracture of 1060 aluminium, joint does not have the crack.
Claims (10)
1. the method for preparing transition joint of different metal materials, it is characterized in that the method for preparing transition joint of different metal materials carries out according to following steps: one, the end of metal material A is processed into 10 °～50 ° tapering, height of conical surface is 4～70mm, and the surface smoothness that makes metal material A of polishing is
2～
8; Two, the metal material A that step 1 is polished and metal material B use the acetone cleaning of deoiling, and metal material A is heated to 100 ~ 350 ℃ and be incubated 10～180min, and metal material B is heated to 300～580 ℃ and be incubated 10～180min; Three, be to carry out hot pressing under 10～1000kN condition to be connected the conical surface that metal material A is polished and all to be pressed in the inner chamber of metal material B the acquisition joint with metal material A and the metal material B of insulation at pressure; Four, the joint that step 3 is obtained is incubated 0～600min under 400～600 ℃ condition, promptly obtains the transit joint of different metal materials; Wherein the metal material A of step 1 is stainless steel, titanium alloy, titanium, copper or copper alloy; The metal material B of step 2 is aluminium alloy or aluminium.
2. the method for preparing transition joint of different metal materials according to claim 1 is characterized in that in the step 1 end of metal material A being processed into 20 °～40 ° tapering, and the surface smoothness that makes metal material A of polishing is
3. the method for preparing transition joint of different metal materials according to claim 2 is characterized in that in the step 2 metal material A is heated to 200～300 ℃ and be incubated 30～150min, and metal material B is heated to 400～500 ℃ and be incubated 30～150min.
4. the method for preparing transition joint of different metal materials according to claim 3 is characterized in that the transit joint that in the step 4 step 3 is obtained is incubated 200～400min under 480～520 ℃ condition.
5. the method for preparing transition joint of different metal materials according to claim 4 is characterized in that metal material A is titanium alloy T A4, titanium alloy T A5, titanium alloy T A6, titanium alloy T A7, titanium alloy T A9, titanium alloy T A10, titanium alloy T B2, titanium alloy T B3, titanium alloy T B4, titanium alloy T C1, titanium alloy T C2, titanium alloy T C3, titanium alloy TC 4, titanium alloy T C6, titanium alloy T C9, titanium alloy titanium alloy T C10, titanium alloy T C11 or titanium alloy T C12.
6. the method for preparing transition joint of different metal materials, it is characterized in that the method for preparing transition joint of different metal materials carries out according to following steps: one, the end of metal material A is processed into 10 °～50 ° tapering, height of conical surface is 4～70mm, and the surface smoothness that makes metal material A of polishing is
Two, metal material A that step 1 is polished and metal material B clean with acetone and are placed in the heating furnace after deoiling, and two kinds of materials are heated to 300～580 ℃ and be incubated 10～180min under vacuum or inert gas shielding condition; Three, the metal material A with insulation is to carry out hot pressing under 10～1000kN condition to be connected with metal material B at pressure, obtains joint; Four, the joint that step 3 is obtained is incubated 0～600min under 400～600 ℃ condition; Promptly obtain the transit joint of different metal materials; Wherein the metal material A of step 1 is stainless steel, titanium alloy, titanium, copper or copper alloy; The metal material B of step 2 is aluminium alloy or aluminium.
7. the method for preparing transition joint of different metal materials according to claim 6 is characterized in that in the step 1 end of metal material A being processed into 20 °～40 ° tapering, and the surface smoothness that makes metal material A of polishing is
8. the method for preparing transition joint of different metal materials according to claim 7 is characterized in that the vacuum under vacuum condition is 1 * 10 in the step 2
-2～1 * 10
-5Torr.
9. the method for preparing transition joint of different metal materials according to claim 8 is characterized in that in the step 2 two kinds of materials are heated to 350～550 ℃ and be incubated 40～150min.
10. the method for preparing transition joint of different metal materials according to claim 9, the metal material A after it is characterized in that will heating in the step 3 is to carry out hot pressing under 200～800kN condition to be connected with metal material B at pressure.
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| CN102950390A (en) * | 2012-11-09 | 2013-03-06 | 航天材料及工艺研究所 | Dissimilar metal welding structure and method of titanium alloy flange and stainless steel pipeline |
| CN103231203A (en) * | 2013-05-11 | 2013-08-07 | 哈尔滨工业大学（威海） | Connecting method for aluminum-steel dissimilar materials |
| CN104611657A (en) * | 2015-01-08 | 2015-05-13 | 太原理工大学 | Machining method for titanium alloy bushing joint |
| CN104741772A (en) * | 2013-12-27 | 2015-07-01 | 北京有色金属研究总院 | Welding method for connecting stainless steel with aluminum alloy |
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| CN102950390A (en) * | 2012-11-09 | 2013-03-06 | 航天材料及工艺研究所 | Dissimilar metal welding structure and method of titanium alloy flange and stainless steel pipeline |
| CN102950390B (en) * | 2012-11-09 | 2016-01-27 | 航天材料及工艺研究所 | A kind of titanium alloy flange and stainless steel pipeline different-metal material welding structure and method |
| CN103231203A (en) * | 2013-05-11 | 2013-08-07 | 哈尔滨工业大学（威海） | Connecting method for aluminum-steel dissimilar materials |
| CN103231203B (en) * | 2013-05-11 | 2015-09-16 | 哈尔滨工业大学（威海） | A kind of For Dissimilar Materials Aluminium method of attachment |
| CN104741772A (en) * | 2013-12-27 | 2015-07-01 | 北京有色金属研究总院 | Welding method for connecting stainless steel with aluminum alloy |
| CN104611657A (en) * | 2015-01-08 | 2015-05-13 | 太原理工大学 | Machining method for titanium alloy bushing joint |
| CN104611657B (en) * | 2015-01-08 | 2017-10-10 | 太原理工大学 | A kind of processing method of titanium alloy casing joint |
| CN105108282A (en) * | 2015-08-10 | 2015-12-02 | 安徽富煌钢构股份有限公司 | Consumable-electrode argon arc welding process for aluminum alloy and wear-resisting steel dissimilar metal |
| CN106271418A (en) * | 2016-08-26 | 2017-01-04 | 余姚市婉珍五金厂 | A kind of transit joint processing technique |
| CN109961859A (en) * | 2017-12-14 | 2019-07-02 | 中国核动力研究设计院 | A kind of nuclear power main equipment safe end and its manufacturing process |
| CN110253118A (en) * | 2019-07-12 | 2019-09-20 | 中船桂江造船有限公司 | A kind of 917 steel plates+aluminium titanium steel composite material welding method |
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