CN102019503B - Friction projection welding method of silver plate metallurgy conducting rod - Google Patents
Friction projection welding method of silver plate metallurgy conducting rod Download PDFInfo
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- CN102019503B CN102019503B CN201010575859.7A CN201010575859A CN102019503B CN 102019503 B CN102019503 B CN 102019503B CN 201010575859 A CN201010575859 A CN 201010575859A CN 102019503 B CN102019503 B CN 102019503B
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Abstract
The invention discloses a friction projection welding method of a electrolysis metallurgy conducting rod, comprising the following steps: firstly, selecting a large and heterogeneous phase control friction welder of a non revolution body structure, wherein the end surface of the friction welder is 50000 mm<2>, the maximum welding force necessary for welding shaping and control projects is 5000KN; then, determining the process of the friction projection welding according to the following strong parameter combining modes: the revolving speed of a principal axis is 200-300 rpm, friction speed is 2-3mile/second, friction time is 5-10 seconds, friction pressure is 40-60 HPa, upsetting force is 70-100HPa, and dwell time is 4-9 seconds; building a friction projection welding joint type rule; on the end surface of the L4-model aluminum post, prefabricating a gibbosity of which the diameter is phi 180-220 mm and the prefabrication height is 25-45 millimeter, wherein the end surface of the gibbosity is a conical surface of 3-10 degrees; in the welding process, ensuring that the L4-model aluminum post with the gibbosity is in the quasi isostatic pressing constraint condition, taking gibbosity disappearance as a mark for forming the friction projection welding joint; and finishing welding when the gibbosity disappears. The invention is used for a friction welder.
Description
technical field:
the present invention relates to a kind of materials processing engineering field that belongs to, be specifically related to a kind of projection welding method of friction of electrolytic metallurgy conducting rod.
background technology:
electrolytic metallurgy conducting rod is the large-sized duplex metal Welding Structure that the L4 aluminium post by the A3 steel seat of 1000 Χ 220 Χ 50mm and 220 Χ 180 Χ 3500mm forms.Now by combination process, manufactured.An i.e. first prefabricated Φ 285A3 steel disk mutually external with L4 aluminium post 220 Χ 180mm rectangle end faces, by after itself and the friction welding of L4 aluminium post, is reprocessed into the rectangle A3 steel section of the 220 Χ 180mms identical with L4 rationality end face.Finally, by the morpheme requirement of L4 aluminium post and A3 steel pipe, adopt arc welding, rectangle A3 steel section and A3 steel seat is welded together.During friction welding (FW), by 220 Χ 180mm rectangle end faces of L4 aluminium post, be that friction has nearly 1/3rd disc not seal completely in Φ 285A3 steel disk, thereby in joint, certainly exist the topped Free Surface by AL2Q3.And arc welding can only be along seeing the bevelled multilayer welding of rectangle perimeter of 220 Χ 180mm, there is nearly 1/2nd rectangle and can not through welding, by this, the metallurgical conducting rod that combination process is manufactured, just one objective pair of welded joint structure.The a large amount of thin Free Surface of seeing existing, reduces and resistance coefficient increase the conductive area of conducting rod.When conducting rod conducts the electric current of 10000A, not only separate out a large amount of resistance heats, at thin sight Free Surface place, bring out heat and should concentrate and make joint mechanical property variation, and pressure drop is higher, the metallurgical power consumption of electric pole is remained high.
combination process present situation can not realize phase controlling with existing direct driving friction-welding machine and the heavy driving of welding strength is relevant greatly, is the bottleneck that limits this technical development.
summary of the invention:
the object of this invention is to provide a kind of method that mode that can adopt friction welding (FW) realizes a solid State Welding moulding of electrolytic metallurgy conducting rod.
above-mentioned object realizes by following technical scheme:
the friction projection welding method of electrolytic metallurgy conducting rod, first select large-scale, heterogeneous, the welding fabrication of non-revolved body structure and the phase controlling friction-welding machine of the necessary maximum weld power of Control Engineering 5000KN with end area 50000mm2, according to the speed of mainshaft of 200-300rpm, the friction velocity of 2--3m/s, the fraction time of 5--10S, friction pressure 40-60HPa, the upsetting force of 70--100HPa, the technique of the strong parameter combinations mode decision friction projection welding of the dwell time of 4--9S; Setting up friction projection welded joint pattern rule, is the dome that Φ 180--220mm, prefabricated height are 25--45mm at the prefabricated diameter of end face of the model L4 of aluminium post, and the end face of dome is 3 °--the taper seat of 10 °; In welding process, have the model L4 of aluminium post of dome in quasi-iso static pressing restrained situation, the sign that the dome of usining disappears and forms as friction projection welded joint, when dome disappearance completes welding.
the friction projection welding method of described electrolytic metallurgy conducting rod, speed of mainshaft 265rpm, friction velocity 2.5m/s, fraction time 6S, friction pressure 50HPa, upsetting force 80HPa, the technique of the strong parameter combinations mode decision friction projection welding of dwell time 5S; The prefabricated diameter of end face at the model L4 of aluminium post is the dome that Φ 220mm, prefabricated height are 30mm, and the end face of dome is the taper seat of 5 °.
beneficial effect:
(1) the present invention is by groping and accumulate summary, breaking through afterwards the parameter limit of traditional concept by data analysis and distillation, again explore and determined that advanced technological parameter has formed new machining manufacture, founded the method that the mode of friction welding (FW) is carried out the welding of electrolytic metallurgy conducting rod, and promoted large-scale, heterogeneous, the welded mechanical property of non-revolved body and electrical conductivity, effectively reduced the energy consumption of electrolytic metallurgy.
(2) constraint that overcomes traditional parameters of the present invention, provides the slow-speed of revolution of optimizing, high pressure, the program of the friction welding of short time.With slow-speed of revolution feature, expand the phase controlling friction welding of this class non-revolved body structure of metallurgical conducting rod.
(3) that the present invention has built this class of L4/A3 is soft/and friction welding (FW) relay on hard interface stablize input mechanism, determines the relay of 5000KN friction welding (FW) and the L4 aluminium post contained condition of the quasi-iso static pressing of unstability not under its effect.
(4) the present invention is according to A3 steel seat, and L4 aluminium post is under the effect of 500KN weld force, and the rule of the complete mismatch of plastic deformation, has built friction projection welded joint design and parameter adjustment criteria.
(5) the present invention has realized electrolytic metallurgy conducting rod and has returned that class is large-scale, heterogeneous, a solid State Welding moulding and the automatic process process of non-revolved body structure, and welding efficiency is high.
(6) the friction projection welded joint that the inventive method obtains, formation be to forge tissue completely, its electrical conductivity reaches 60% International Annealed Copper Standard IACS(International Annealed copper Standard); While conducting the Faradaic current of 10000A, the about 50mv of the more existing reduction of pressure drop producing on conducting rod, energy conservation and consumption reduction effects is remarkable.
(7) the maximum weld power of existing direct driving friction-welding machine is 26MN, and can not phase controlling.Enforcement of the present invention, the phase controlling friction-welding machine that is 5000KN to development maximum weld power has important guiding function.
(8) the present invention can realize a solid State Welding moulding of A3 steel seat and L4 aluminium; Joint mechanical property is better than L4 aluminium post, and joint electrical conductivity reaches 60% IACS, thereby has effectively solved the energy-saving and cost-reducing problem of electrolytic metallurgy industry.The phase controlling friction-welding machine of maximum weld power 5000KN is the optimum condition of implementing friction projection welding, builds full projection welded joint design criteria, at the dome of the prefabricated Φ 220 Χ 30mm of L4 aluminium styletable, and make its in welding process in quasi-iso static pressing restrained situation; The strong parameter combinations pattern low according to rotating speed, pressure is high, the time is short, adjusts and implements friction projection welding technical process; It is the sign of a solid State Welding moulding of electrolytic metallurgy conducting rod that dome planishes.
(9) the present invention has started the light river of large-scale, heterogeneous, non-revolved body structure solid State Welding moulding and Control Engineering, also for technique basis has been established in the development of the phase controlling friction-welding machine of maximum weld power 5000KN.
the specific embodiment:
embodiment 1:
a kind of friction projection welding method of electrolytic metallurgy conducting rod, first select large-scale, heterogeneous, the welding fabrication of non-revolved body structure and the phase controlling friction-welding machine of the necessary maximum weld power of Control Engineering 5000KN with end area 50000mm2, then according to the speed of mainshaft of 200-300rpm, the friction velocity of 2--3m/s, the fraction time of 5--10S, friction pressure 40-60HPa, the upsetting force of 70--100HPa, the technique of the strong parameter combinations mode decision friction projection welding of the dwell time of 4--9S; Setting up friction projection welded joint pattern rule, is the dome that Φ 180--220mm, prefabricated height are 25--45mm at the prefabricated diameter of end face of the model L4 of aluminium post, and the end face of dome is 3 °--the taper seat of 10 °; In welding process, have the model L4 of aluminium post of dome in quasi-iso static pressing restrained situation, the sign that the dome of usining disappears and forms as friction projection welded joint, when dome disappearance completes welding.
embodiment 2:
the friction projection welding method of electrolytic metallurgy conducting rod, first select large-scale, heterogeneous, the welding fabrication of non-revolved body structure and the phase controlling friction-welding machine of the necessary maximum weld power of Control Engineering 5000KN with end area 50000mm2, then according to the speed of mainshaft of 265rpm, the friction velocity of 2.5m/s, the fraction time of 6S, friction pressure 50HPa, the upsetting force of 80HPa, the technique of the strong parameter combinations mode decision friction projection welding of the dwell time of 5S; Setting up friction projection welded joint pattern rule, is the dome that Φ 220mm, prefabricated height are 30mm at the prefabricated diameter of end face of the model L4 of aluminium post, and the end face of dome is the taper seat of 5 °; In welding process, have the model L4 of aluminium post of dome in quasi-iso static pressing restrained situation, the sign that the dome of usining disappears and forms as friction projection welded joint, when dome disappearance completes welding.
embodiment 3:
the friction projection welding method of the electrolytic metallurgy conducting rod described in embodiment 1 or 2, the phase controlling friction-welding machine that maximum weld power is 5000KN is as implementing preferred equipment condition of the present invention.Optimize the strong parameter combinations pattern that rotating speed is low, pressure is high, the time is short.Determine that the speed of mainshaft is 265rpm, friction velocity: 2.5m/s, fraction time: 6S, upsetting force 80HPa, dwell time: 5S, according to the rule of plastic deformation mismatch on L4/A3 interface, determine the rule of friction welding (FW) projection welded joint design, L4 aluminium styletable prefabricated-dome of Φ 220 Χ 30mm.The rectangle end face phase inscribe of Φ 220 domes and L4 aluminium post, the height 30mm of dome should be the axial deflection that L4 aluminium post produces under the effect of 5000KN weld force.The end face of dome also can be prefabricated into the taper seat of 5 ° of left and right.L4 aluminium post is clamped in and rigidly fixes in parts and in hydrostatic pressure restrained situation.A3 steel seat is clamped in the power part with phase control function, and touch-screen/senior PLC system automatically performs the strong parameter combinations pattern of friction welding.When Φ 220 Χ 30mm domes are planished, form friction projection welded joint.
Claims (2)
1.
a friction projection welding method for electrolytic metallurgy conducting rod, first selects with end area 50000mm 2 large-scale, heterogeneous, the welding fabrication of non-revolved body structure and the phase controlling friction-welding machine of the necessary maximum weld power of Control Engineering 5000KN, it is characterized in that: according to the speed of mainshaft of 200-300rpm, the friction velocity of 2--3m/s, the fraction time of 5--10S, friction pressure 40-60HPa, the upsetting force of 70--100HPa, the technique of the strong parameter combinations mode decision friction projection welding of the dwell time of 4--9S; Setting up friction projection welded joint pattern rule, is the dome that Φ 180--220mm, prefabricated height are 25--45mm at the prefabricated diameter of end face of the model L4 of aluminium post, and the end face of dome is 3 °--the taper seat of 10 °; In welding process, have the model L4 of aluminium post of dome in quasi-iso static pressing restrained situation, the sign that the dome of usining disappears and forms as friction projection welded joint, when dome disappearance completes welding.
2.
the friction projection welding method of electrolytic metallurgy conducting rod according to claim 1, is characterized in that: speed of mainshaft 265rpm, friction velocity2.5
m/s, fraction time6
s, friction pressure 50HPa, upsetting force80
hPa, the technique of the strong parameter combinations mode decision friction projection welding of dwell time 5S; The prefabricated diameter of end face at the model L4 of aluminium post is the dome that Φ 220mm, prefabricated height are 30mm, and the end face of dome is the taper seat of 5 °.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010575859.7A CN102019503B (en) | 2010-12-07 | 2010-12-07 | Friction projection welding method of silver plate metallurgy conducting rod |
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| CN201010575859.7A CN102019503B (en) | 2010-12-07 | 2010-12-07 | Friction projection welding method of silver plate metallurgy conducting rod |
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| CN102019503A CN102019503A (en) | 2011-04-20 |
| CN102019503B true CN102019503B (en) | 2014-09-17 |
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| CN105108328B (en) * | 2015-09-21 | 2017-11-07 | 重庆江增船舶重工有限公司 | A kind of Continuous Drive Friction Welding of booster main shaft connects method |
Citations (6)
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|---|---|---|---|---|
| JPH02108477A (en) * | 1988-10-17 | 1990-04-20 | Toshiba Corp | Method for determining press weldable maximum size in friction press welding of stainless steel material |
| JPH08290279A (en) * | 1995-04-20 | 1996-11-05 | Kobe Steel Ltd | Friction welding method |
| CN1446659A (en) * | 2003-01-10 | 2003-10-08 | 西北工业大学 | Phase control method for friction welding pieces |
| CN1624204A (en) * | 2004-10-25 | 2005-06-08 | 西北工业大学 | Electrode for electrolgtic aluminium |
| CN1994651A (en) * | 2006-12-29 | 2007-07-11 | 西北工业大学 | Friction pressure loading unit of linear friction welding machine and loading method thereof |
| CN101740987A (en) * | 2008-11-10 | 2010-06-16 | 陕西博德机电装备制造有限公司 | Solid-state welding production method of high-performance conducting rod |
-
2010
- 2010-12-07 CN CN201010575859.7A patent/CN102019503B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02108477A (en) * | 1988-10-17 | 1990-04-20 | Toshiba Corp | Method for determining press weldable maximum size in friction press welding of stainless steel material |
| JPH08290279A (en) * | 1995-04-20 | 1996-11-05 | Kobe Steel Ltd | Friction welding method |
| CN1446659A (en) * | 2003-01-10 | 2003-10-08 | 西北工业大学 | Phase control method for friction welding pieces |
| CN1624204A (en) * | 2004-10-25 | 2005-06-08 | 西北工业大学 | Electrode for electrolgtic aluminium |
| CN1994651A (en) * | 2006-12-29 | 2007-07-11 | 西北工业大学 | Friction pressure loading unit of linear friction welding machine and loading method thereof |
| CN101740987A (en) * | 2008-11-10 | 2010-06-16 | 陕西博德机电装备制造有限公司 | Solid-state welding production method of high-performance conducting rod |
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