CN102728945A - Liquid phase connected die forging integral forming method of material - Google Patents
Liquid phase connected die forging integral forming method of material Download PDFInfo
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- CN102728945A CN102728945A CN2012101636937A CN201210163693A CN102728945A CN 102728945 A CN102728945 A CN 102728945A CN 2012101636937 A CN2012101636937 A CN 2012101636937A CN 201210163693 A CN201210163693 A CN 201210163693A CN 102728945 A CN102728945 A CN 102728945A
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Abstract
The invention discloses a liquid phase connected die forging integral forming method of a material, and relates to a material forming method. The technical problems of difficulty in connection and low intensity in the conventional material connection method are solved. The method comprises the following steps of: removing oil stains and impurities on the surface to be connected of the material to be connected; 2, respecting heating the materials to be connected which processed in the first step to a plastic deformation temperature under the protection of vacuum or inert gas, and keeping the temperature until the temperature of all parts of the materials are consistent; and continuously heating to ensure that the temperature of the material to be connected is quickly raised to a melting point temperature and is kept to melt the surface layer of the material; and 3, placing the material to be connected which is treated in the second step into a die cavity of a hot press for hot-pressing formation, or placing the material to be connected between rollers of a rolling machine for performing rolling formation so as to finish the liquid phase connected die forging integral formation of the material. A joint prepared by the method can be applied to the fields of aerospaces, space technology, nuclear industry, micro-electrons, automobiles and petrochemical industry.
Description
Technical field
The present invention relates to a kind of material forming method.
Background technology
It is that two or more materials (comprising metal and nonmetal, composite, compound etc.) are connected together through certain process conditions that material connects, and forms a structure complete, that have certain serviceability.The material syndeton has the comprehensive premium properties of multiple material, thereby has obtained using widely in Aero-Space, space technology, nuclear industry, microelectronics, automobile, field of petrochemical industry.Progress of modern technology improves the requirement of Materials Science and Engineering technology day by day; Developing novel high-performance constitutional detail and advanced interconnection technique has become the problem that vast high-tech enterprise needs urgent solution, and this phenomenon embodies more obviously in fields such as automobile, Aero-Space, telecommunications.Having adopted the plate tubular construction of aluminium alloy and stainless steel, aluminium alloy and copper, the method interconnection technique that the engine of guided missile of new generation, propeller housing, gas cylinder and gas turbine blades also all adopt two kinds of materials of pottery and metal to weld together like the heat pipe structure in space industry and the national product field is to be connected the key that material constitutes syndeton.
In recent years, use special process to connect satisfying the instructions for use of product to connecting material, and can produce the compound union piece of high-quality (intelligent part), become production-manufacturing engineering teacher and numerous scientific workers study the exploration focus.And traditional casting and FMT can not satisfy the manufacturing demand and the serviceability of these parts fully, and this just demand makes the research of semi-solid state forming technique receive and pays close attention to the especially mechanical property and the quality control of semi-solid-state shaping product widely.
There is very big-difference owing to connect the physical property and the chemical property of material, relatively harsher to the requirement that connects.The at present general methods such as mechanical connection, splicing, welding that adopt are main with mechanical connection and splicing or the two Combination application mainly.But there are a lot of shortcomings in mechanical connection and splicing, and, architecture quality low like intensity be big, produce fifth wheel etc. when glueing joint, and therefore, lot of domestic and foreign researcher has carried out a large amount of research, adopts welding method to solve the connectivity problem that connects material.Following problem appears in conventional fusion welding method ease of connection: (1) metallurgical incompatibility forms the frangible compounds phase at the interface; (2) thermophysical property does not match, and produces residual stress; (3) mechanical property difference is big, causes linkage interface mechanics mismatch, produces the serious stress singular behavior.The existence of the problems referred to above makes not only material connect difficulty, but also has influence on joint microstructure, performance and mechanical behavior that the fracture property and the reliability of butt joint cause harmful effect, even have a strong impact on the integrality of structure.
Summary of the invention
The present invention will solve existing material method of attachment material to connect the technical problem difficult, that intensity is low, and provides a kind of material liquid phase to connect the die forging integral forming method.
A kind of material liquid phase of the present invention connects the die forging integral forming method and carries out according to the following steps:
One, to be connected with material to be connected removes greasy dirt and impurity;
Two, the material to be connected that will handle through step 1 under the protection of vacuum or inert gas, is heated to their plastic deformation temperatures respectively, and each temperature of insulation to its material is consistent; The continuation heating makes the temperature of material to be connected rise to their melting temperature fast and is incubated and makes the material surface fusing again;
Three, will place the die cavity hot forming of hot press through the material to be connected that step 2 is handled, perhaps will place between the roll of roller mill and carry out roll forming, and accomplish the material liquid phase and connect the die forging integral forming through the material to be connected that step 2 is handled.
Profitable fruit of the present invention is:
(1) connecting the die forging integral forming method is through heating or pressurization, or the means of both and usefulness, by interatomic diffusion and combination, and the method that two objects that separate are linked together.Usually need the effect through solder (intermediate layer) or mechanical pressure that two or more materials are linked together, thereby obtain a kind of connector.The effect of solder (intermediate layer) is the effect of playing mutual bonding, and the effect that the promotion interface that mechanical pressure plays combines.Through instantaneous heating, make the material surface fusing, this melting zone is the intermediate layer, has promptly reached the action effect of solder, and has the effect of pressure again in the forming process.Therefore, if instantaneous liquid phase connection (welding) shaping and plastic working shaping are combined, through the effect of Liquid Phase Diffusion and pressure, gained product interfacial diffusion ability is stronger, and binding ability is stronger, and the interface combines tightr, more excellent performance.This process is connected the two kinds of technologies that are shaped with Technology of Plastic Processing and merges mutually with material, bring into play its length, avoids its weak point, for materials processing technology provides a new approach.
(2) adopt liquid phase to connect the die forging technology; Can not adopt the third phase intermediate layer in the instantaneous Liquid Phase Diffusion connection at the interface calmodulin binding domain CaM; Therefore the interface can fully spread and avoid inhomogeneities to produce, and can avoid the generation of phase in the middle of the continuous fragility again, requires lower to condition of contact; Can improve the bond strength that connects between the material, can realize that material interface connects-integrally formedly carries out synchronously.
(3) this process forming mode can be a die-forging forming, also can be other forming modes, like extruding, rolling etc.Especially what deserves to be mentioned is the shaping problem (shaping for this type material utilizes conventional welding or connects the relatively difficulty that is shaped) of utilizing this process can well solve forming laminated sheet material, for the shaping of forming laminated sheet material or laminar composite has proposed a new technological approaches.
The present invention connects material merges with the plastic working forming technology mutually, realizes connecting and the disposable completion that is shaped.Can realize the connection of material, realize part forming again simultaneously, through the joint of this process preparation, the interface combines better, performance is higher, and the product residual stress is less, the surface physics chemical property improves, and saves operation, production efficiency is high.Because forming temperature is low, it is not very high that mold materials is required, and production environment is better; Mechanical property is higher, more can satisfy mechanical property requirements, and the prospect of broader applications in national defence field and national product, life can be used for Aero-Space, space technology, nuclear industry, microelectronics, automobile, petrochemical industry with the joint of this method preparation.
Description of drawings
Fig. 1 is the installation diagram that the hot forming of test one step 3 prepares gear member, the 1st, and upper punch, the 2nd divides half die, the 3rd, die overcoat, the 4th, gear inserts, the 5th, cushion block, the 6th, lower shoe, the 7th, push rod, 8 are that 2024 Al-alloy based composite blanks, 9 are 2024 aluminum alloy blanks, the 10th, upper plate; Fig. 2 is the vertical view of the preparation gear member of test one preparation; Fig. 3 is the side view of test one preparation gear member; Fig. 4 is the photo of test one preparation gear member.
The specific embodiment
The specific embodiment one: a kind of material liquid phase of this embodiment connects the die forging integral forming method and carries out according to the following steps:
One, to be connected with material to be connected removes greasy dirt and impurity;
Two, the material to be connected that will handle through step 1 under the protection of vacuum or inert gas, is heated to their plastic deformation temperatures respectively, and each temperature of insulation to its material is consistent; The continuation heating makes the temperature of material to be connected rise to their melting temperature fast and is incubated and makes the material surface fusing again;
Three, will place the die cavity hot forming of hot press through the material to be connected that step 2 is handled, perhaps will place between the roll of roller mill and carry out roll forming, and accomplish the material liquid phase and connect the die forging integral forming through the material to be connected that step 2 is handled.
In this embodiment; At first mother metal is carried out suitable surface treatment and reaches the substep heating; Heating to connecting mother metal should guarantee that material all has plastic deformation ability; Require the linkage interface requirement to be in liquid-liquid status again, can reach integrally formed requirement like this, it is good that the interface is combined.
The connection die forging integral forming method of this embodiment is through heating or pressurization, or the means of both and usefulness, by interatomic diffusion and combination, and the method that two objects that separate are linked together.Usually material connects the effect of arts demand through solder (intermediate layer) or mechanical pressure two or more materials is linked together, thereby obtains a kind of connector.The effect of solder (intermediate layer) is the effect of playing mutual bonding, and the effect that the promotion interface that mechanical pressure plays combines.Through instantaneous heating, make the material surface fusing, this melting zone is the intermediate layer, has promptly reached the action effect of solder, and has the effect of pressure again in the forming process.Therefore, if instantaneous liquid phase connection (welding) shaping and plastic working shaping are combined, through the effect of Liquid Phase Diffusion and pressure, gained product interfacial diffusion ability is stronger, and binding ability is stronger, and the interface combines tightr, more excellent performance.This process is connected the two kinds of technologies that are shaped with Technology of Plastic Processing and merges mutually with material, bring into play its length, avoids its weak point, for materials processing technology provides a new approach.This embodiment adopts liquid phase to connect the die forging technology; Can not adopt the third phase intermediate layer in the instantaneous Liquid Phase Diffusion connection at the interface calmodulin binding domain CaM; Therefore the interface can fully spread and avoid inhomogeneities to produce, and can avoid the generation of phase in the middle of the continuous fragility again, requires lower to condition of contact; Can improve the bond strength that connects between the material, can realize that material interface connects with integrally formed carries out synchronously.
The specific embodiment two: what this embodiment and the specific embodiment one were different is: the material to be connected in the step 1 is metal and metal, metal and composite or composite and composite.Other other identical with the specific embodiment one.
Material to be connected can be identical in this embodiment, also can be different, be same material or foreign material.
The specific embodiment three: what this embodiment was different with the specific embodiment one or two is: the inert gas in the step 2 is nitrogen or argon gas.Other is identical with the specific embodiment one or two.
The specific embodiment four: this embodiment and the specific embodiment one are different is that liquid phase connects the die forging integral forming method and carries out according to the following steps:
One, to be connected with aluminium alloy to be connected and Al alloy composite removes greasy dirt and impurity;
Two, will under the protection of vacuum or inert gas, be heated to their plastic deformation temperatures respectively through step 1 aluminium alloy treated and Al alloy composite, and insulation 15min～60min; Continuing heating again makes the temperature of material to be connected in 1～5min, rise to their melting temperature and keep 5～7min;
Three, will place the die cavity hot forming of hot press through step 2 aluminium alloy treated and Al alloy composite; Perhaps will place between the roll of roller mill and carry out roll forming, and accomplish a kind of material liquid phase and connect the die forging integral forming through the material to be connected that step 1 is handled.
This embodiment carries out these two kinds of materials of aluminium alloy and Al alloy composite that the interface is connected and monolithic molding.The connection die forging integral forming method of this embodiment is through heating or pressurization, or the means of both and usefulness, by interatomic diffusion and combination, and the method that two objects that separate are linked together.Usually material connects the effect of arts demand through solder (intermediate layer) or mechanical pressure two or more materials is linked together, thereby obtains a kind of connector.The effect of solder (intermediate layer) is the effect of playing mutual bonding, and the effect that the promotion interface that mechanical pressure plays combines.Through instantaneous heating, make the material surface fusing, this melting zone is the intermediate layer, has promptly reached the action effect of solder, and has the effect of pressure again in the forming process.Therefore, if instantaneous liquid phase connection (welding) shaping and plastic working shaping are combined, through the effect of Liquid Phase Diffusion and pressure, gained product interfacial diffusion ability is stronger, and binding ability is stronger, and the interface combines tightr, more excellent performance.This process is connected the two kinds of technologies that are shaped with Technology of Plastic Processing and merges mutually with material, bring into play its length, avoids its weak point, for materials processing technology provides a new approach.This embodiment adopts liquid phase to connect the die forging technology; Can not adopt the third phase intermediate layer in the instantaneous Liquid Phase Diffusion connection at the interface calmodulin binding domain CaM; Therefore the interface can fully spread and avoid inhomogeneities to produce; Can avoid the generation of phase in the middle of the continuous fragility again, condition of contact required lower, can improve the bond strength that connects between the material.
The specific embodiment five: this embodiment and the specific embodiment four are different is that aluminium alloy and Al alloy composite are incubated 20min～40min after being heated to their plastic deformation temperatures respectively in the step 2.Other is identical with the specific embodiment four.
The specific embodiment six: this embodiment and the specific embodiment four are different is the temperature of material to be connected to be risen in their melting temperature fast be meant that fast the temperature that within 1～5min, makes material to be connected rises to their melting temperature.Other is identical with the specific embodiment four.
The specific embodiment seven: this embodiment and the specific embodiment four are different is that top layer in the step 2 is meant that material surface thickness is the material layer of 0.5～5mm.Other is identical with the specific embodiment four.
The specific embodiment eight: this embodiment and the specific embodiment four are different is that Al alloy composite in the step 1 prepares according to the following steps: A, use mass percentage concentration to be 5%～10%HF solution soaking 24h the SiC powder after; Be washed with distilled water to neutrality again; Be placed on temperature then and be in 140 ℃～160 ℃ the baking oven and dry 24h～28h; After grinding again, be placed on temperature again and be sintering 4h～10h in 795～805 ℃ the Muffle furnace, obtain modification SiC powder; B, by volume percentage modification SiC powder that 2%～30% steps A is obtained and 70%～98% Al alloy powder join ball milling in the ball mill, obtain mixed-powder; C, the mixed-powder that step B is obtained join in the mould, are put into mould in the press again, are forced into 84MPa～100MPa and pressurize 0.5min～1min with the speed of 70MPa/min, obtain the blank of colding pressing; D, will be preheated to 200 ℃ as the hot pressing die of lubricant with graphite; The blank of colding pressing that step C is obtained is heated to 500 ℃ in inert gas; Be put into then in the good hot pressing die of preheating; Pressing speed with 100MPa/min is forced into 100MPa～150MPa and pressurize 0.5min～1min, obtains Al alloy composite.Other is identical with the specific embodiment four.
The specific embodiment nine: this embodiment and the specific embodiment one are different is that the material liquid phase connects the die forging integral forming method and carries out according to the following steps:
One, the waste product material that reclaims is removed greasy dirt and impurity;
Two, the waste product material that will handle through step 1 under the protection of vacuum or inert gas, is heated to their plastic deformation temperatures respectively, and is incubated to each temperature of waste product material consistent; The continuation heating makes the temperature of waste product material rise to their melting temperature fast and is incubated and makes the material surface fusing again;
Three, will place the die cavity hot forming of hot press through the material to be connected that step 2 is handled, perhaps will place between the roll of roller mill and carry out roll forming, and accomplish a kind of material liquid phase and connect the die forging integral forming through the material to be connected that step 1 is handled.
The waste product material that the utilization of this embodiment is reclaimed carries out liquid phase and connects and integral forming; Break through traditional waste product and needed melting again, casting, this mode of die-forging forming; But directly recycling has been saved the time, has been raised the efficiency, energy savings in direct forming.
The specific embodiment ten: what this embodiment and the specific embodiment nine were different is that the waste product material described in the step 1 is metal or metallic composite.Other is identical with the specific embodiment nine.
With following verification experimental verification beneficial effect of the present invention:
Test one: utilize 2024 aluminium alloys and 2024 Al-alloy based Composite Preparation Al-Al based composites gear member as shown in Figure 3: this gear mid portion adopts 2024 aluminum alloy materials; The gear peripheral part is with 2024 Al-alloy based composites; Connect the die forging integral forming method through a kind of material liquid phase and prepare composite gear member one-piece parts, its concrete steps are:
One, the preparation of 2024 Al-alloy based composite blanks and 2024 aluminum alloy blanks and surface treatment are removed greasy dirt and impurity: A, are after 120 purpose SiC powder use mass percentage concentration to be 10% HF solution soaking 24h with fineness; Be washed with distilled water to neutrality again; Be placed on temperature then and be in 140 ℃～160 ℃ the baking oven and dry 24h～28h; Be ground to 120 orders again, be placed on temperature again and be sintering 8h in 800 ℃ the Muffle furnace, obtain modification SiC powder; B, by volume percentage modification SiC powder that 20% steps A is obtained and 80% fineness are that 120 purposes, 2024 Al alloy powders join in the ball mill, mix, and obtain mixed-powder; C, the mixed-powder that step B is obtained join in the mould, are put into mould in the press again, are forced into 85MPa and pressurize 0.5min with the speed of 70MPa/min, obtain the blank of colding pressing; D, will be preheated to 200 ℃ as the hot pressing die of lubricant with graphite; The blank of colding pressing that step C is obtained is heated to 500 ℃ in inert gas; Be put into then in the good hot pressing die of preheating; Pressing speed with 100MPa/min is forced into 120MPa and pressurize 0.5min again, obtains the aluminum matrix composite gear ingot of φ 50mm * 60mm, through being machined in the middle hole that processes φ 20mm * 60mm of gear ingot; E, the gear ingot that step D is obtained remove surperficial oxide skin, the 2024 Al-alloy based composite blanks that obtain; F, 2024 aluminium alloy bars are processed into the size of φ 20mm * 60mm, remove the oxide skin on surface then, obtain 2024 aluminum alloy blanks;
Two, 2024 aluminum alloy blanks that 2024 Al-alloy based composite blanks that step 1 obtained and step 1 F obtain are inserted respectively in the induction heater of nitrogen protection; And be heated to 500 ℃ respectively; Insulation 15min; And then be heated to 700 ℃ at 5min, 2024 Al-alloy based composite blanks insulation 7min, 2024 aluminum alloy blanks insulation 4min;
Three, will be placed in through 2024 aluminum alloy blanks that step 2 is handled in the hole of 2024 Al-alloy based composite blanks; And whole the immigration in the mould; Mould is put into hot press, be forced into 160MPa and keep 1min, obtain 2024 aluminium alloys and 2024 based composites gear members.
Wherein the hot forming in the step 3 prepares installation diagram such as Fig. 1 of gear member, and wherein 1 is upper punch, the 2nd, divides half die, the 3rd, die overcoat, the 4th, and gear inserts, the 5th, cushion block, the 6th, lower shoe, the 7th, push rod, 8 are that 2024 Al-alloy based composite blanks, 9 are 2024 aluminum alloy blanks, the 10th, upper plate.Hot pressing is: 2024 aluminum alloy blanks are placed in the hole of 2024 Al-alloy based composite blanks; And whole the immigration divided in half die 2; The descending rapidly and pressurization of upper punch 1 realizes that 2024 aluminum alloy blanks are connected the die forging integral forming with the liquid phase of 2024 Al-alloy based composite blanks, thereby prepares 2024 aluminium alloys-2024 based composites gear member; Then; Upper punch 1 is up, is about to branch half die 2, gear inserts 4, cushion block 5 on the push rod 7 and the product be made up of 2024 aluminum matrix composites 8 and 2024 aluminium alloys, 9 two sections of material ejects together, will divide half die to open in 2 minutes then; Take out gear member, accomplish the gear member preparation of 2024 aluminium alloys-2024 based composites.
The vertical view of the preparation gear member of test one preparation is as shown in Figure 2, and the side view of gear member is as shown in Figure 3.
The connection die forging integral forming method of this embodiment is the means through heating and pressurize both and usefulness, by interatomic diffusion and combination, and the method that two objects that separate are linked together.The melting zone of material surface plays the effect of mutual bonding, and the effect that the promotion interface that mechanical pressure plays combines.Through instantaneous heating, make the material surface fusing, this melting zone is the intermediate layer, has promptly reached the action effect of solder, and has the effect of pressure again in the forming process.Therefore, if instantaneous liquid phase connection (welding) shaping and plastic working shaping are combined, through the effect of Liquid Phase Diffusion and pressure, gained product interfacial diffusion ability is stronger, and binding ability is stronger, and the interface combines tightr, more excellent performance.This embodiment adopts liquid phase to connect the die forging technology; Can not adopt the third phase intermediate layer in the instantaneous Liquid Phase Diffusion connection at the interface calmodulin binding domain CaM; Therefore the interface can fully spread and avoid inhomogeneities to produce, and can avoid the generation of phase in the middle of the continuous fragility again, requires lower to condition of contact; Can improve the bond strength that connects between the material, can realize that material interface connects-integrally formedly carries out synchronously.
Claims (10)
1. a material liquid phase connects the die forging integral forming method, it is characterized in that a kind of material liquid phase connects the die forging integral forming method and carries out according to the following steps:
One, to be connected with material to be connected removes greasy dirt and impurity;
Two, the material to be connected that will handle through step 1 under the protection of vacuum or inert gas, is heated to their plastic deformation temperatures respectively, and each temperature of insulation to its material is consistent; The continuation heating makes the temperature of material to be connected rise to their melting temperature fast and is incubated and makes the material surface fusing again;
Three, will place the die cavity hot forming of hot press through the material to be connected that step 2 is handled, perhaps will place between the roll of roller mill and carry out roll forming, and accomplish the material liquid phase and connect the die forging integral forming through the material to be connected that step 2 is handled.
2. a kind of material liquid phase according to claim 1 connects the die forging integral forming method, it is characterized in that the material to be connected in the step 1 is metal and metal, metal and composite or composite and composite.
3. a kind of material liquid phase according to claim 1 and 2 connects the die forging integral forming method, it is characterized in that the inert gas in the step 2 is nitrogen or argon gas.
4. a kind of material liquid phase according to claim 1 and 2 connects the die forging integral forming method, it is characterized in that aluminium alloy is connected the die forging integral forming method with the Al alloy composite liquid phase and carries out according to the following steps:
One, to be connected with aluminium alloy to be connected and Al alloy composite removes greasy dirt and impurity;
Two, will under the protection of vacuum or inert gas, be heated to their plastic deformation temperatures respectively through step 1 aluminium alloy treated and Al alloy composite, and insulation 15min～60min; Continuing heating again makes the temperature of material to be connected in 1～5min, rise to their melting temperature and keep 5～7min;
Three, will place the die cavity hot forming of hot press through step 2 aluminium alloy treated and Al alloy composite; Perhaps will place between the roll of roller mill and carry out roll forming, and accomplish a kind of material liquid phase and connect the die forging integral forming through the material to be connected that step 2 is handled.
5. a kind of material liquid phase according to claim 4 connects the die forging integral forming method, it is characterized in that being incubated 20min～40min after aluminium alloy and Al alloy composite in the step 2 are heated to their plastic deformation temperatures respectively.
6. connect the die forging integral forming methods according to claim 4 or 5 described a kind of material liquid phases, it is characterized in that making in the step 2 temperature of material to be connected to rise to fast in their melting temperature and be meant that fast the temperature that within 1～5min, makes material to be connected rises to their melting temperature.
7. connect the die forging integral forming method according to claim 4 or 5 described a kind of material liquid phases, it is characterized in that the top layer in the step 2 is meant that material surface thickness is the material layer of 0.5～5mm.
8. connect the die forging integral forming method according to claim 4 or 5 described a kind of material liquid phases; It is characterized in that the Al alloy composite in the step 1 prepares according to the following steps: A, use mass percentage concentration to be 5%～10% HF solution soaking 24h the SiC powder after; Be washed with distilled water to neutrality again; Be placed on temperature then and be in 140 ℃～160 ℃ the baking oven and dry 24h～28h; After grinding again, be placed on temperature again and be sintering 4h～10h in 795～805 ℃ the Muffle furnace, obtain modification SiC powder; B, by volume percentage modification SiC powder that 2%～30% steps A is obtained and 70%～98% Al alloy powder join ball milling in the ball mill, obtain mixed-powder; C, the mixed-powder that step B is obtained join in the mould, are put into mould in the press again, are forced into 84MPa～100MPa and pressurize 0.5min～1min with the speed of 70MPa/min, obtain the blank of colding pressing; D, will be preheated to 200 ℃ as the hot pressing die of lubricant with graphite; The blank of colding pressing that step C is obtained is heated to 500 ℃ in inert gas; Be put into then in the good hot pressing die of preheating; Pressing speed with 100MPa/min is forced into 100MPa～150MPa and pressurize 0.5min～1min, obtains Al alloy composite.
9. a kind of material liquid phase according to claim 1 connects the die forging integral forming method, it is characterized in that waste product material liquid phase connects the die forging integral forming method and carries out according to the following steps:
One, the waste product material that reclaims is removed greasy dirt and impurity;
Two, the waste product material that will handle through step 1 under the protection of vacuum or inert gas, is heated to their plastic deformation temperatures respectively, and is incubated to each temperature of waste product material consistent; The continuation heating makes the temperature of waste product material rise to their melting temperature fast and is incubated and makes the material surface fusing again;
Three, will place the die cavity hot forming of hot press through the material to be connected that step 2 is handled, perhaps will place between the roll of roller mill and carry out roll forming, and accomplish a kind of material liquid phase and connect the die forging integral forming through the material to be connected that step 1 is handled.
10. a kind of material liquid phase according to claim 9 connects the die forging integral forming method, it is characterized in that the waste product material described in the step 1 is metal or metallic composite.
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| CN103846541A (en) * | 2014-03-12 | 2014-06-11 | 王子延 | Metal liquid-solid interface thermal extrusion welding method |
| CN103878473A (en) * | 2014-03-12 | 2014-06-25 | 王子延 | Hot-extrusion welding device for metal liquid-solid state interface |
| CN103846541B (en) * | 2014-03-12 | 2017-05-03 | 王子延 | Metal liquid-solid interface thermal extrusion welding method |
| CN109332977A (en) * | 2018-11-26 | 2019-02-15 | 中国航发南方工业有限公司 | The clamping device and welding method of labyrinth gas seals component |
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