CN103878473B - Molten metal solid-state interface hot extrusion welder - Google Patents

Molten metal solid-state interface hot extrusion welder Download PDF

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Publication number
CN103878473B
CN103878473B CN201410089263.4A CN201410089263A CN103878473B CN 103878473 B CN103878473 B CN 103878473B CN 201410089263 A CN201410089263 A CN 201410089263A CN 103878473 B CN103878473 B CN 103878473B
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China
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weldment
welder
heater
metalworks
molten metal
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CN201410089263.4A
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CN103878473A (en
Inventor
王子延
刘小稚
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Shanghai Energy Technology Co., Ltd.
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王子延
刘小稚
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Priority to CN201410089263.4A priority Critical patent/CN103878473B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/001Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by extrusion or drawing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/22Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/26Auxiliary equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/18Dissimilar materials

Abstract

The present invention relates to the combined process field of metal, it is specifically related to molten metal solid-state interface hot extrusion welder, it is characterized in that: described welder has at least one and is respectively positioned on described containing cavity side for the weldment containing cavity, heater and the pressure apparatus that are embedded in described metalwork, described heater and described pressure apparatus.The invention have the advantage that the welding can being applicable between xenogenesis or same metal part, and have that speed of welding is fast, weld strength is high, be suitable for the welding of various sizes bonded area, the advantage metalwork of arbitrarily complicated shape can welded;Welding process can be avoided metalwork solder side produce untoward reaction with the oxygen in air and hydrogen;Whole welding process production line balance the most effective, suitable.

Description

Molten metal solid-state interface hot extrusion welder
Technical field
The present invention relates to the combined process field of metal, be specifically related to molten metal solid-state interface hot extrusion welder.
Background technology
Dissimilar metal integrated structure part has the comprehensive desirable physical of foreign material, mechanics, mechanical performance concurrently.Have a wide range of applications at power electronics industrial circle.The physical and chemical performance of dissimilar metal there are differences and brings difficulty to welding.At present, industrial method and the technique that can realize dissimilar metal combination have welding and casting forging two big classes, and welder includes friction welding (FW), soldering, diffusion welding (DW), blast weldering etc..Casting forging method includes subduing state cold-forging method, hot extrusion method and casting die etc..Above-mentioned welder is primarily adapted for use in large area, the welding of the dissimilar metal part of large volume or combination.Ultrasonic brazing unit, because of the restriction of power, is mainly used in wire harness, the welding of the electronic devices such as binding post.And method for welding is also unable to reach the requirement of some product in terms of metal bond strength.
Patent 200510008353 " for liquid phase diffusion bonding method and the equipment of dissimilar metal plate " describes and utilizes pressure roll to apply pressure, and uses two circulating type high-frequency induction heating coils eutectic liquid phase diffusion bonding method respectively to dissimilar metal heating;This invention uses two set high-frequency induction heating coils respectively to dissimilar metal, i.e. galvanized steel plain sheet and aluminium alloy plate, heat, too high temperature can cause low-intensity and the deformation of base material, therefore the maximum temperature of binding site controls below 550 DEG C, and dissimilar metal plate is applied with the pressure of tens of MPas, to ensure bond strength.Owing to heating coil is placed on metallic plate back, the method is only applicable to the welding of board-like material, it is impossible to complicated shape, or thicker metalwork realizes welding.
Patent 201110448262 discloses a kind of dissimilar metal composite joint preparation method, and the method, according to liquid/solid phases diffusion principle, uses the low melting point liquid metal diffusion interconnection technique to refractory metal.Realize the seamless metallurgical binding of dissimilar metal.Owing to this welder is to use crucible to realize in vacuum furnace, complex process, the process cycle time is long, is difficulty with the streamline welding of low cost.
Summary of the invention
It is an object of the invention to according to above-mentioned the deficiencies in the prior art, provide molten metal solid-state interface hot extrusion welder, by heater the solder side of two metalworks heated and make it melt and other positions of metalwork are cooled down by chiller and still keep solid state;The oxide impurity of metalwork surface melting layer, under the effect of pressure apparatus, is extruded solder side, it is achieved that the effective welding between two metalworks.
The object of the invention realizes being completed by techniques below scheme:
A kind of molten metal solid-state interface hot extrusion welder, for by integrally welded for two metalworks, it is characterized in that: described welder has at least one and is respectively positioned on described containing cavity side for the weldment containing cavity, heater and the pressure apparatus that are embedded in described metalwork, described heater and described pressure apparatus.
Described heater is positioned at the opening side of described containing cavity.
Described heater is constituted with magnetic conduction load laminate by heating coil.
Described magnetic conduction load laminate can be stacked locking by some thin silicon steel plates and connect and compose, it is also possible to for soft magnetic ferrite or the sintered moulded body of soft magnetic composite powder material.
Described pressure apparatus is positioned at the side of described containing cavity, and the force direction of described pressure apparatus is identical with the normal direction of described containing cavity.
Described containing cavity periphery is provided with cooling water channel.
A heat insulation briquetting it is provided with between described heater and described containing cavity.
Described welder has two described weldment containing cavities, and two described containing cavity openings are in being oppositely arranged.
The invention have the advantage that
1. quickly heating avoids the excessive generation of intermetallic compound on faying face, improves weld strength;
2. it is suitable for the welding of various sizes bonded area, breaches flash welding, electric resistance welding, friction welding (FW), limitation in terms of bonding area size;
3. have employed the extrusion die according to the design of welded part shape, the metalwork of arbitrarily complicated shape can be welded;Such as: can directly be shaped the butt welding of aluminium alloy radiating fin and copper coin;
4. different-metal material welding faying face is in pressure-bearing fit-state all the time, it is to avoid the reaction that in faying face ingress of air, oxygen and hydrogen produce, it is not necessary to vacuum atmosphere, it is not necessary to inert gas shielding;
5. welding procedure is simple, low cost, uses standardized equipment, or the standardized equipment of transformation, easily realize welding process automation in technical process.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is present invention structural representation in use;
Fig. 3 is to have magnetic conduction in the present invention to carry the heating coil structure schematic diagram of laminate;
Fig. 4 is the structural representation that in the present invention, magnetic conduction carries laminate;
Fig. 5 is the principle schematic I heating coil in the present invention;
Fig. 6 is the principle schematic II heating coil in the present invention;
Fig. 7 is the use schematic diagram of weldment pressing mold in the present invention;
Fig. 8 is the explosive view of Fig. 6;
Fig. 9 is the matching chart of complicated metal weldment and the weldment pressing mold with molding structure.
Detailed description of the invention
Feature of present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, in order to the understanding of technical staff of the same trade:
As shown in figs 1-9, in figure, labelling 1-18 is respectively as follows: hydraulic press 1, hydraulic machine piston push rod 2, stalloy 3, magnetic conduction load laminate 4, heat insulation briquetting 5, weldment pressing mold 6, cooling system 7, cooling water channel water inlet 8, die holder workbench 9, first metal weldment 10, second metal weldment 11, fastening bolt 12, medium, high frequency load coil 13, glass fibre protection sleeve pipe 14, medium, high frequency sensing heater 15, cooling water channel outlet 16, containing cavity 17, shaped structure 18.
Embodiment one: the molten metal solid-state interface hot extrusion welder in the present embodiment is used for integrally welded for two metal weldments, and is applicable to two kinds of metal weldments being made up of dissimilar metal.
As shown in Figure 1, 2, the welder of the present embodiment includes offering the weldment pressing mold 6 of containing cavity 17, the pressure apparatus being made up of hydraulic press 1 and hydraulic machine piston push rod 2 and being carried, by magnetic conduction, the heater that laminate 4 is constituted with medium, high frequency load coil 13, wherein heater is arranged at the upper side of containing cavity 17, and pressure apparatus is arranged at above heater and contacts to will pass through heating heat transfer transmission pressure.
Match with the shape of metal weldment being embedded into, size for the containing cavity 17 of bearing metal weldment and its cavity depth is less than this metal weldment height so that the upper surface (i.e. solder side) of this metal weldment is exposed to the cavity upper shed of containing cavity 17.In order to distribute heat, the temperature of control weldment pressing mold 6, offering employing recirculated water cooling in welding pressing mold 6 is the cooling water channel of working method, cooling water channel is positioned at the periphery of containing cavity 17, and the most through one side being opened in weldment pressing mold 6 of its cooling water channel outlet 16, cooling water channel water inlet 8 is also connected with cooling system 7 composition.Weldment pressing mold 6 is supported on die holder workbench 9.
As shown in Figure 2,3, 4, heater is carried laminate 4 by magnetic conduction and medium, high frequency load coil 13 assembling is constituted, wherein medium, high frequency load coil 13 is connected with medium, high frequency sensing heater 15, magnetic conduction load laminate 4 is connected with each other locking by some stalloys 3 in E font by fastening bolt 12 and constitutes, and medium, high frequency load coil 13 coordinates in the groove being installed on stalloy 3;The magnetic conduction load laminate 4 that stalloy 3 is constituted, except strengthening magnetic field intensity, also acts as the effect of transmission pressure simultaneously.Magnetic conduction carries the lower plane of laminate 4 and is set with a heat insulation briquetting 5, and heat insulation briquetting 5 can stop the heat of metal welding fitting to be transferred in magnetic conduction load laminate 4.
As shown in Figure 1, 2, pressure apparatus is hydraulic press 1, and the hydraulic machine piston bar 2 of hydraulic press 1 is positioned at magnetic conduction and carries the top of laminate 4 and come in contact with its surface, and the force direction of hydraulic machine piston bar 2 is identical with the normal direction of containing cavity 17.
The present embodiment is in the specific implementation: utilizing welder by integrally welded to first metal weldment 10, second metal weldment 11 the two metal weldment, two metal weldments are made up of dissimilar metal respectively, and the fusing point of first metal weldment 10 is less than the fusing point of second metal weldment 11.
In first metal weldment 10 is inlaid in containing cavity 17 and make its solder side fit tightly with the solder side composition of second metal weldment 11.Second metal weldment 11 is heated by the heater utilizing magnetic induction line principle of heating, now the heating-up temperature of medium, high frequency load coil 13 is less than the fusing point of second metal weldment 11 while more than first metal weldment 10 fusing point, so second metal weldment 11 only makes this local melting of solder side of first metal weldment 10 by conduction of heat, and the remainder that first metal weldment 10 is positioned at containing cavity 17 can cool down by the cooling water channel being opened in weldment pressing mold 6 and keep solid state.
When hydraulic press 1 forces in second metal weldment 11 and first metal weldment 10 by magnetic conduction load laminate 4, the solder side of two metal weldments remains and fits tightly without there being air to enter, thus avoids metal welding junction in welding process to produce untoward reaction with the oxygen in air and hydrogen.When the solder side of first metal weldment 10 is added heat fusing by medium, high frequency load coil 13, pressure due to hydraulic press 1, second metal weldment 11 is pressed in the solder side of first metal weldment 10 all the time, two metal weldments just complete welding, and now the oxide impurity of the surface melting layer of first metal weldment 10 is extruded faying face under pressure, obtained solder side weld strength is guaranteed.
Embodiment two: the present embodiment is compared the difference of embodiment one and is, the present embodiment be for the two metal weldments being made up of same metal between welding needs.In order to weld the two metal weldments being made up of same metal, needing to be flush-mounted in the containing cavity 17 of two weldment pressing molds 6 two metal weldments respectively, the opening of two containing cavities 17 is relative.The heater being made up of magnetic conduction load laminate 4 and medium, high frequency load coil 13 may be disposed at side or the dorsal part of arbitrary containing cavity 17 of the solder side that two metal weldments fit, thus two metal weldments are carried out local and heats and then make both solders side all melt, now the remainder of metal weldment all can be always maintained at solid state by the cooling water channel cooling offered in respective weldment pressing mold 6.
Embodiment one, two is in the specific implementation: be aluminum metal weldment with first metal weldment 10, as a example by second metal weldment 11 is copper metal weldment, the heating carried out by the magnetic induction line of medium, high frequency load coil 13 can be divided into following two mode: as shown in Figure 5, magnetic induction line is just through copper metal weldment, due to copper metal weldment remain with aluminum metal weldment contacting of fitting tightly and heating-up temperature while higher than the fusing point of aluminum again less than the fusing point of copper, so the solder side of aluminum metal weldment can be made to melt by the conduction of heat of copper metal weldment;As shown in Figure 6, magnetic induction line is while copper metal weldment, also at least across the solder side of aluminum metal weldment, so, although heat two metalworks simultaneously, but owing to heating-up temperature is less than the fusing point of copper, so the solder side of only aluminum metal weldment is melted.
As shown in Figure 5,6, Fig. 5 shows the output output less than the medium, high frequency sensing heater in Fig. 6 of medium, high frequency sensing heater, so the distribution of magnetic induction line can be controlled by adjusting the output of medium, high frequency sensing heater 15 and selects the locus of heating region on metal weldment accordingly;Additionally due to magnetic induction line also needs guiding through heat insulation briquetting 5, so selecting the locus of heating region on metal weldment also by the thickness adjusting heat insulation briquetting 5.
As shown in Figure 7,8, first metal weldment 10 is a plate body, so its containing cavity 17 embedded is the rectangular cavities matched with its length, width;And as shown in Figure 9, when first metal weldment 10 bottom has the shaped structure 18 of complexity, need the structure that the cavity body structure of containing cavity 18 is set to match with shaped structure 18, so that shaped structure 18 obtains the cooling of cooling water channel, its temperature distortion is avoided even to melt, so, the welding of the metal weldment with complicated shaped structure is also achieved.
The welder that above-described embodiment one is used is vertical, and when being applied on actual flow waterline, can be chosen as the apparatus structure of horizontal or some other form accordingly, but does not the most hinder the enforcement of this device.
The cross section of medium, high frequency load coil 13 is except being the square-section copper pipe in Fig. 1,2,5 or 6, it is also possible to be the copper pipe of circular cross-section.The number of turn of medium, high frequency load coil 13 can be more than a circle, two circles or two circles coil side by side, outer cover glaze fiber protection sleeve pipe 14.
Magnetic conduction carries the upper and lower plane of laminate 4 all through Precision Machining, it is ensured that its surface accuracy and the depth of parallelism of two planes, thus ensures the flatness of faying face between two metal weldments.Magnetic conduction carries laminate 4 can be such as being stacked locking by some thin silicon steel plates 3 and connect and compose in embodiment one, two, it is also possible to for soft magnetic ferrite or the sintered moulded body of soft magnetic composite powder material.
The material of heat insulation briquetting 5 uses low thermal conductivity, insulation, and the material of low permeability is made, and can be chosen as: aluminium sesquioxide, silicon nitride or quartz material etc..

Claims (7)

1. a molten metal solid-state interface hot extrusion welder, for by integrally welded for the two of xenogenesis metalworks, it is characterized in that: described welder has one for the weldment containing cavity being embedded in described metalwork, heater and pressure apparatus, described heater is positioned at the side of the opening of described weldment containing cavity, described heater is for heating two described metalworks, this heating is to make this local melting of the solder side of at least one described metalwork, described pressure apparatus fits tightly for making the solder side of two described metalworks remain when heated.
A kind of molten metal solid-state interface hot extrusion welder the most according to claim 1, it is characterised in that: described heater is constituted with magnetic conduction load laminate by heating coil.
A kind of molten metal solid-state interface hot extrusion welder the most according to claim 2, it is characterised in that: described magnetic conduction carries laminate and is stacked locking by some thin silicon steel plates and connect and compose or for soft magnetic ferrite or the sintered moulded body of soft magnetic composite powder material.
A kind of molten metal solid-state interface hot extrusion welder the most according to claim 1, it is characterised in that: the force direction of described pressure apparatus is identical with the normal direction of described containing cavity.
A kind of molten metal solid-state interface hot extrusion welder the most according to claim 1, it is characterised in that: described containing cavity periphery is provided with cooling water channel.
A kind of molten metal solid-state interface hot extrusion welder the most according to claim 1, it is characterised in that: it is provided with a heat insulation briquetting between described heater and described containing cavity.
7. a molten metal solid-state interface hot extrusion welder, for by integrally welded for two metalworks of the same race, it is characterized in that: on described welder has, two weldment containing cavities of lower layout, heater and pressure apparatus, the opening of two described weldment containing cavities is oppositely arranged, two described weldment containing cavities are respectively used to be embedded in two described metalworks, described heater is positioned at side or the dorsal part of arbitrary described weldment containing cavity of the solder side that two described metalworks fit, described heater heats for two described metalworks carry out local, this heating is to make the solder side of two described metalworks all melt, described pressure apparatus fits tightly for making the solder side of two described metalworks remain when heated.
CN201410089263.4A 2014-03-12 2014-03-12 Molten metal solid-state interface hot extrusion welder Active CN103878473B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107378224A (en) * 2017-09-13 2017-11-24 无锡海菲焊接设备有限公司 Aluminium is flexible coupling welding machine and welding procedure
CN109396630B (en) * 2018-11-20 2023-08-25 上海理工大学 Dissimilar metal material pipeline welding device

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* Cited by examiner, † Cited by third party
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CN2338127Y (en) * 1998-04-24 1999-09-15 沈阳铁路局科学技术研究所 Machine for welding different metals
JP4544755B2 (en) * 2001-01-17 2010-09-15 パナソニック株式会社 Bonding head and component mounting device
JP4181063B2 (en) * 2004-02-17 2008-11-12 日産自動車株式会社 Liquid phase diffusion bonding method for dissimilar metal sheets
CN202147089U (en) * 2011-07-14 2012-02-22 江苏金鑫电器有限公司 Copper-aluminum dissimilar metal pressure deposition welding machine
CN102728945B (en) * 2012-05-24 2014-06-18 哈尔滨工业大学 Liquid phase connected die forging integral forming method of material
CN203738223U (en) * 2014-03-12 2014-07-30 王子延 Hot extrusion and welding device for liquid-solid interface of metal

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Effective date of registration: 20170310

Address after: 200433 Yangpu District University, Shanghai Road, room 243, No. 1102

Patentee after: Shanghai Energy Technology Co., Ltd.

Address before: 200127 Pudong New Area Dongfang Road, lane, room 9, No. 602, room 1663

Patentee before: Wang Ziyan

Patentee before: Liu Xiaozhi

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