CN205362994U - Device with low hardness metal of high rigidity metal friction build -up welding - Google Patents
Device with low hardness metal of high rigidity metal friction build -up welding Download PDFInfo
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- CN205362994U CN205362994U CN201520872042.4U CN201520872042U CN205362994U CN 205362994 U CN205362994 U CN 205362994U CN 201520872042 U CN201520872042 U CN 201520872042U CN 205362994 U CN205362994 U CN 205362994U
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Abstract
The utility model discloses a device with low hardness metal of high rigidity metal friction build -up welding, the device include power device, and it can make the high rigidity metal take place to rotate and give pressure, a friction pulley heating device sets up at the welding ends of high rigidity metal and links firmly on power device, and one cover the cooling device who has the copper layer the copper layer on place low hardness metal, the utility model discloses a high rigidity metal preheats, hangs down the dual measure of hardness metal cooling, realizes metal rigidity and soft state control among high rigidity metal and the low hardness metal friction weld overlay process, the utility model provides a device with low hardness metal of high rigidity metal friction build -up welding continuity and controllability in welding process is good, and work efficiency is high, long service life.
Description
Technical field
This utility model belongs to Solid-phase welding field, particularly a kind of device with high rigidity metal friction built-up welding soft metal.
Background technology:
Friction surfacing be a kind of utilize frictional heat make metal connect partial zones be in hot plastic state realize welding/weldering apply advanced metalworking technology, friction surfacing has low energy consumption, pollution-free high-efficient rate, the advantage surface abrasion resistances such as crudy is good, erosion-resisting metal can apply technology with friction welding (FW) and obtain without dilution, in conjunction with the weldering coating that integrity is high, friction surfacing technology has a extensive future in the manufacture and reparation of wearing piece, friction surfacing technology is not limited to welding technology field, also can extensively widen its range of application, quickly manufacture at friction rolling part, the aspects such as composition metal preparation and metal recycling processing have huge potentiality to be exploited.
The method of current high rigidity replating soft metal also rarely has research, there is foreign scholar M.CHANDRASEKARAN in mild steel friction surfacing aluminium alloy is tested, what adopt is before steel with aluminum friction surfacing, first allowing mild steel and mild steel friction make mild steel soften, then allowing mild steel and aluminum friction thus realizing the friction surfacing of mild steel and aluminum again.This method is capable of high rigidity metal is preheated first, high rigidity metal softening can be made in advance, realize the welding between different hardness metal, but the high-temperature duration of this method is shorter, follow-up can not continuing through frictionally heats, and cannot realize continuous print built-up welding, and rub softening not in advance, easily making steel become milling cutter and aluminum is milled out a groove, this method cannot realize the accurately control of temperature and waste metal, and efficiency is low.
M.J.R.Stegmueller scholar have employed load coil heating rod iron in steel friction surfacing aluminum is tested makes steel softening carry out friction surfacing again, this method can realize the welding of aluminum steel, but it cannot accurately control the temperature of rod iron, and also without the temperature device of cooling aluminium sheet, thus it adopts thick aluminium sheet to prevent rod iron aluminium sheet mill off.
Harbin Institute of Technology's Zhang Hongtao adopts CMT welding-braze method that hardness is differed bigger aluminum-steel and has studied, the Interface Microstructure analysis of aluminum/galvanized steel plain sheet CMT welding-braze lap joint shows, joint interface is mainly made up of two class difference Compound Phases, is proximate to steel side Fe in uniform thickness respectively2Al5Phase and the FeAl near aluminum side faller gill shape3Phase, illustrates that this traditional fusion welding method cannot stop the generation of aluminum steel intermetallic compound can form brittlement phase.
Utility model content
The purpose of this utility model is in that to provide the device of a kind of high rigidity metal friction built-up welding soft metal.
The technical scheme that this utility model provides for providing the device of a kind of high rigidity metal friction built-up welding soft metal is:
The device of a kind of high rigidity metal friction built-up welding soft metal includes:
Power set, it can make high rigidity metal rotate and give pressure；
One friction pulley split heater is by high rigidity metal traverse, and is arranged on the welding ends 15mm-25mm place from high rigidity metal, and is connected on power set；Power set load coil when high speed rotating does not rotate with power set；
And the chiller being covered with layers of copper, layers of copper on place soft metal；
Wherein, in the preproduction phase, high rigidity metal and soft metal are contactless and without horizontal direction displacement；Frictionally heating the stage, power set make high rigidity metal contact with soft metal but without horizontal direction displacement；In the friction surfacing stage, power set make high rigidity metal contact with soft metal and linear movement occurs in the horizontal direction.
High rigidity metal can be bar, and length is 75～200mm, and diameter is 15mm～30mm, and soft metal can be sheet material, and the copper layer thickness that it covers is 5mm.
These power set can provide maximum pressure to be 30MPa, it is provided that maximum weld speed be 200mm/min, maximum rotating speed is 1500r/min.
Preferably, this friction welding apparatuses can be arranged on the table, and power set are provided with controller.
Friction pulley split heater is provided with temperature sensor.Friction pulley split heater is provided with temperature sensor, and the power that friction pulley provides is 20kN to the maximum, it is possible to regulate temperature in external heat with when frictionally heating dual-heated according to the plastic temperature value of different high rigidity metals, it is prevented that metal superheat and temperature are inadequate.
Chiller is provided with the through hole by cooling medium in the horizontal direction.The coolant temperature passed into is at-5 DEG C～10 DEG C, and speed is adjustable between 1m/min～3m/min.It is made to keep rigidity and formation temperature gradient by the cooling medium flowed thus cooling down soft metal.
Preferably, by arrange compact heap restriction soft metal be subjected to displacement.
The difference of hardness HV > 30 of described high rigidity metal and soft metal.
This utility model has following significant advantage relative to prior art:
1, this utility model is preheated by high rigidity metal, the dual measure of soft metal cooling, it is achieved high rigidity metal controls with the metal rigidity in soft metal friction weld deposit process and soft state；2, by controlling different heating-up temperatures thus the range of choice that expands between high rigidity metal and soft metal；3, Method of Limited Dilution rate and range-controllable thereof, it is possible to decrease the intermetallic compound of different metal Solid-phase welding；4, the continuous controllability of welding process is good, and adopting friction pulley heating is a kind of energy-conservation and environmental protection mode of heating, controls the height of temperature in welding process by controlling the power of applying.
Accompanying drawing explanation
Fig. 1 is the structural representation of high rigidity metal friction built-up welding soft metal device of the present utility model；
Fig. 2 is the friction surfacing design sketch of the A3 steel friction surfacing T2 fine copper in embodiment 2；
Fig. 3 is the faying face surface sweeping Electronic Speculum figure of the A3 steel friction surfacing T2 fine copper in embodiment 2；
Fig. 4 is the SEM line scan element relative amount figure of the A3 steel friction surfacing T2 fine copper in embodiment 2；
Fig. 5 is the design sketch of the friction surfacing of the A3 steel friction surfacing T2 fine copper in embodiment 3.
Wherein, 1: workbench；2: water cooling plant；3: copper coin；4: soft metal；5: compact heap；6: high rigidity metal；7: friction pulley split heater；8: power set.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.
Such as Fig. 1, the device of a kind of high rigidity metal friction built-up welding soft metal, including: power set 8, it can make high rigidity metal 6 rotate and give pressure；
High rigidity metal 6 is arranged in friction pulley split heater 7, and friction pulley split heater 7 is connected on power set 8；High rigidity metal be have employed special external induction heating apparatus, it is possible to achieve the heating of the local of metal, only add the end of thermometal, ensure to can ensure that while metal local produces softening rigidity that metal top divides thus the pressure that ensures in friction surfacing process；
And the chiller 2 being covered with layers of copper, layers of copper on place soft metal 4；
Wherein, in the preproduction phase, high rigidity metal 6 is contactless with soft metal 4 and without horizontal direction displacement；Frictionally heating the stage, power set 8 make high rigidity metal 6 contact with soft metal 4 but without horizontal direction displacement；In the friction surfacing stage, power set 8 make high rigidity metal 6 contact with soft metal 4 and linear movement occurs in the horizontal direction.
This friction welding apparatuses is arranged on workbench 1, and power set 8 are provided with controller.
Friction pulley split heater 7 is provided with temperature sensor.Described friction pulley adopts split-type design, friction pulley is taken turns sheet by two and is made itself and high rigidity metal friction heat production from both sides applying pressure, the maximum pressure that can provide is 20kN, temperature can be regulated in external heat with when frictionally heating dual-heated, it is prevented that metal superheat and temperature are inadequate according to the plastic temperature value of different high rigidity metals 6.Temperature in welding process measured and controls, different heating-up temperatures can be controlled for different metal heating thus the range of choice that expands between high rigidity metal and soft metal.
Chiller 2 is provided with the through hole by cooling medium in the horizontal direction.Limit soft metal 4 be subjected to displacement by arranging compact heap 5.
Embodiment 1
The present embodiment adopts said apparatus to be prepared, with A3 steel friction surfacing LY12 Al-alloy metal, the hardness of A3 steel is HV165, the hardness of LY12 aluminium alloy is HV120, and friction pulley split heater 7 heats and control the temperature of A3 steel at 500 DEG C-800 DEG C, and LY12 aluminium alloy is fixed on water cooling plant 2, water cooling plant 2 is fixed on workbench 1, in test, A3 rod iron is of a size of φ 20mm, LY12 aluminium sheet and is of a size of 300mm*150mm*6mm, and welding process specifically comprises the following steps that
Step (1), starts friction pulley split heater 7 and A3 rod iron latter end is heated, and the pressure regulated between two-wheeled sheet is 800N, and power set rotating speed is adjusted to 800r/min, by the heating temperatures of A3 rod iron to preheating temperature 500 DEG C.The preheating of A3 rod iron latter end can also be kept while playing preheating rod iron temperature the rigidity of rod iron epimere thus the pressure that ensures between two kinds of metals, it is to avoid the softening surrender of steel entirety and pressure cannot be provided.
Step (2), chiller 2 passes into the cooling water of flowing by bottom through-hole, and water temperature is 0 DEG C, and speed is 1m/min.Cooling water-cooled but LY12 aluminium sheet makes it keep rigidity and formation temperature gradient；LY12 aluminium sheet keeps rigidity that it can be avoided by A3 rod iron milling, and formation temperature gradient is the essential condition that friction surfacing realizes.
Step (3), contacts A3 rod iron with LY12 aluminium sheet, and power set provide rotating speed to be 800r/min, and pressure is that 2MPa drives A3 rod iron and the friction of LY12 aluminium sheet geo-stationary, makes rod iron latter end reach plastic temperature interval and produce ductile bed.
Step (4), power set 8 provide the horizontal speed of welding of 50mm/min, make A3 rod iron produce relative motion with LY12 aluminium sheet, and the plastic metal heap of A3 rod iron end is welded on LY12 aluminium sheet and forms continuous print overlay cladding.
Embodiment 2
The present embodiment adopts said apparatus to be prepared, with A3 steel friction surfacing T2 fine copper, the hardness of A3 steel is HV165, the hardness of T2 fine copper is HV68, and friction pulley split heater 7 heats and control the temperature of A3 steel at 800 DEG C-1000 DEG C, and T2 copper is fixed on water cooling plant 2, water cooling plant 2 is fixed on workbench 1, in test, A3 rod iron is of a size of φ 20mm, T2 copper coin and is of a size of 300*150*6mm, and welding process specifically comprises the following steps that
Step (1), start friction pulley split heater 7 A3 steel latter end is heated, the pressure regulated between two-wheeled sheet is 1500N, and power set rotating speed is adjusted to 1200r/min, by the heating temperatures of A3 steel to preheating temperature 800 DEG C. the preheating of A3 steel latter end can also be kept while playing preheating steel temperature the rigidity of A3 steel epimere thus the pressure that ensures between two kinds of metals, it is to avoid the softening surrender of high rigidity metal entirety and pressure cannot be provided.
Step (2), chiller 2 passes into the cooling water of flowing by bottom through-hole, and water temperature is-5 DEG C, and speed is 2m/min.Cooling water-cooled but T2 copper makes it keep rigidity and formation temperature gradient；T2 copper keeps rigidity that it can be avoided by A3 steel milling, and formation temperature gradient is the essential condition that friction surfacing realizes.
Step (3), contacts A3 rod iron with T2 copper coin, and power set 8 provide rotating speed to be 1200r/min, and pressure is that 3.5MPa drives A3 rod iron and T2 copper coin geo-stationary and rubs, and makes rod iron latter end reach plastic temperature interval and produce ductile bed；
Step (4), power set 8 provide the horizontal speed of welding of 50mm/min, make A3 rod iron produce relative motion with T2 copper coin, and the plastic metal heap of A3 rod iron end is welded on T2 copper coin and forms continuous print overlay cladding.
nullAs shown in Figure 2，Welding parameter preheating temperature 800 DEG C in the present embodiment，Cooling water passes into temperature and is-5 DEG C，The time that passes in advance is 20min，Welding parameter during welding is rotating speed 1200r/min，Pressure 3.5Mpa，Speed of welding is 80mm/min，Under this welding parameter，The Temperature Matching of A3 rod iron and T2 copper coin can well be mated，The higher A3 rod iron of hardness is in sensing heating and frictionally heats combined heat and is issued to mecystasis，The T2 copper coin that now hardness is relatively low under the cooling of water cooling plant temperature reduce be not reaching to completely softening and by the state of A3 rod iron milling，And rod iron now constantly softens along with friction and induction heating temperature raise and reaches mecystasis，And it is transitioned on T2 copper coin along with the relative motion of A3 rod iron and T2 copper coin and the thermograde difference of A3 rod iron and T2 copper coin，Thus forming overlay cladding.
As shown in Figure 3,4, by the SEM line scanning to combination interface, from FeK line it can be seen that at faying face, Fe element to steel side almost without diffusion, equally from CuK line it can be seen that Cu Elements Diffusion is also little to the content of steel side.
From then on line scanning can realize the welding of dilution rate it can be seen that the consumptive material friction welding (FW) of the present embodiment realizes the welding of dilution rate.
Embodiment 3
The present embodiment adopts device and technique that embodiment 2 is identical, the heating temperatures of A3 steel is replaced with 500 DEG C to preheating temperature.Welding process specifically comprises the following steps that
Step (1), A3 steel latter end is heated by friction pulley split heater 7, by the heating temperatures of A3 steel to preheating temperature 500 DEG C, the preheating of steel latter end can also be kept while playing preheating steel temperature the rigidity of steel epimere thus the pressure that ensures between two kinds of metals, it is to avoid the softening surrender of high rigidity metal entirety and pressure cannot be provided.
Step (2), chiller 2 passes into the cooling water of flowing by bottom through-hole, and water temperature is-5 DEG C, and speed is 2m/min.Cooling water-cooled but T2 copper makes it keep rigidity and formation temperature gradient；T2 copper keeps rigidity that it can be avoided by A3 steel milling, and formation temperature gradient is the essential condition that friction surfacing realizes.
Step (3), contacts A3 rod iron with T2 copper coin, and power set 8 provide rotating speed to be 1200r/min, and pressure is that 3.5MPa drives A3 rod iron and T2 copper coin geo-stationary and rubs, and makes A3 rod iron latter end reach plastic temperature interval and produce ductile bed；
Step (4), power set 8 provide the horizontal speed of welding of 50mm/min, make A3 rod iron produce relative motion with T2 copper coin, and the plastic metal heap of A3 rod iron end is welded on T2 copper coin and forms continuous print overlay cladding.
Under this welding parameter, the Temperature Matching of A3 steel and T2 copper has problems, two kinds of situations can be divided into: 1, heating in sensing and frictionally heat under combined heat, the temperature that A3 rod iron reaches cannot make A3 rod iron soften and reach mecystasis, thus the T2 copper coin milling of soft.2, A3 rod iron has reached mecystasis, but meanwhile T2 copper coin is also up to mecystasis, and the mecystasis that T2 copper coin is now will more than the mecystasis of A3 rod iron, and T2 copper coin still can cannot be completed welding by A3 rod iron milling in this case.
Claims (9)
1. one kind with the device of high rigidity metal friction built-up welding soft metal, it is characterised in that including power set (8), it can make high rigidity metal (6) rotate and give pressure；
One friction pulley split heater (7) is by high rigidity metal (6) traverse, and is connected on power set (8)；
And the chiller (2) being covered with layers of copper (3), place soft metal (4) described layers of copper (3) is upper；
Wherein, in the preproduction phase, described high rigidity metal (6) and described soft metal (4) are contactless and without horizontal direction displacement；Frictionally heating the stage, described power set (8) make described high rigidity metal (6) contact but without horizontal direction displacement with described soft metal (4)；In the friction surfacing stage, described power set (8) make described high rigidity metal (6) contact with described soft metal (4) and linear movement occurs in the horizontal direction.
2. the device with high rigidity metal friction built-up welding soft metal according to claim 1, it is characterised in that friction pulley split heater (7) the welding ends 15mm-25mm place from high rigidity metal (6).
3. the device with high rigidity metal friction built-up welding soft metal according to claim 1, it is characterised in that described chiller (2) is provided with the through hole by cooling medium in the horizontal direction.
4. the device with high rigidity metal friction built-up welding soft metal according to claim 1, it is characterised in that described friction pulley split heater (7) is provided with temperature sensor, and the power that friction pulley provides is 20kN to the maximum.
5. the device with high rigidity metal friction built-up welding soft metal according to claim 1, it is characterised in that be subjected to displacement by the soft metal (4) arranging compact heap (5) restriction described.
6. the device with high rigidity metal friction built-up welding soft metal according to claim 1, it is characterised in that the described device with high rigidity metal friction built-up welding soft metal can be arranged on workbench (1).
7. the device with high rigidity metal friction built-up welding soft metal according to claim 1, it is characterized in that, described high rigidity metal (6) is bar, length is 75～200mm, diameter is 15mm～30mm, described soft metal (4) is sheet material, and described layers of copper (3) thickness is 5mm.
8. the device with high rigidity metal friction built-up welding soft metal according to claim 1, it is characterised in that described power set (8) are provided with controller.
9. the device with high rigidity metal friction built-up welding soft metal according to claim 1, it is characterised in that the difference of hardness HV > 30 of described high rigidity metal and soft metal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520872042.4U CN205362994U (en) | 2015-11-03 | 2015-11-03 | Device with low hardness metal of high rigidity metal friction build -up welding |
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| CN201520872042.4U CN205362994U (en) | 2015-11-03 | 2015-11-03 | Device with low hardness metal of high rigidity metal friction build -up welding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195890A (en) * | 2015-11-03 | 2015-12-30 | 江苏烁石焊接科技有限公司 | Device and method for friction surfacing of low-hardness metal with high-hardness metal |
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2015
- 2015-11-03 CN CN201520872042.4U patent/CN205362994U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195890A (en) * | 2015-11-03 | 2015-12-30 | 江苏烁石焊接科技有限公司 | Device and method for friction surfacing of low-hardness metal with high-hardness metal |
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