CN103737147B - A kind of method improving platinum filament and lug plate welding quality and equipment thereof - Google Patents

A kind of method improving platinum filament and lug plate welding quality and equipment thereof Download PDF

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Publication number
CN103737147B
CN103737147B CN201310626681.8A CN201310626681A CN103737147B CN 103737147 B CN103737147 B CN 103737147B CN 201310626681 A CN201310626681 A CN 201310626681A CN 103737147 B CN103737147 B CN 103737147B
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CN
China
Prior art keywords
lug plate
platinum filament
welding
equipment
low pressure
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CN201310626681.8A
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Chinese (zh)
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CN103737147A (en
Inventor
金海柱
郭勇
仲进
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Suzhou Changfeng Aviation Electronics Co Ltd
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Suzhou Changfeng Aviation Electronics Co Ltd
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Priority to CN201310626681.8A priority Critical patent/CN103737147B/en
Publication of CN103737147A publication Critical patent/CN103737147A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/007—Spot arc welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
    • B23K9/1006—Power supply
    • B23K9/1043—Power supply characterised by the electric circuit
    • B23K9/105—Power supply characterised by the electric circuit by using discharge tubes or mechanical contactors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/36—Electric or electronic devices

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Arc Welding In General (AREA)

Abstract

The present invention relates to a kind of processing method, a kind of method improving platinum filament and lug plate welding quality, comprise the following steps: step 1: by lug plate bending；Step 2: platinum filament is put into inside bending；Step 3: adjust welding equipment parameter, voltage: low pressure 30V～36V；Step 4: graphite electrode head is positioned over lug plate and platinum filament position to be welded, both keep contact, and apply 4N/cm2～6N/cm2Pressure；Step 5: stepping on equipment by foot and connect welding circuit, weld, the time is 2S～3S.Carbon arc spot-welding equipment is owing to using low pressure output, high to operator safety；Compensate for the deficiency of traditional method solder, its bonding strength and reliability are all greatly improved, and meet the use requirement to platinum sensor.

Description

A kind of method improving platinum filament and lug plate welding quality and equipment thereof
Technical field
The present invention relates to a kind of processing method, especially a kind of platinum filament that improves welds matter with lug plate The method of amount, additionally relates to apparatus for the method.
Background technology
In aircraft industry sensor, platinum sensor occupies the biggest proportion now, because platinum is electric Resistance stable performance, temperature range width, intensity is high, and the Product Precision of manufacture is high, in aviation temperature Use in a large number on sensor；Wound-rotor type platinum resistance is that platinum filament is wound on the insulation such as Muscovitum, pottery On the skeleton of material, making sensing element, but resistance is to be exported by plug housing, platinum filament is with slotting Transferred by lug plate between key seat；Use solder to connect platinum filament and lug plate before, Owing to solder fluidity, feeding and wellability are poor, welding performance and weld strength is caused to be disliked Changing, in weld seam cooling procedure, structural stress is excessive, often ruptures after causing platinum filament soldering, The final reliability of product can not be guaranteed.
Summary of the invention
The deficiencies such as the structural stress for overcoming existing solder to cause platinum resistance is excessive, easy fracture, The present invention provides a kind of and improves platinum filament and the method for lug plate welding quality and equipment thereof.
The technical scheme that the present invention takes is:
A kind of method improving platinum filament and lug plate welding quality, comprises the following steps:
Step 1: by lug plate bending；
Step 2: platinum filament is put into inside bending；
Step 3: adjust welding equipment parameter,
Voltage: low pressure 30V～36V,
Step 4: graphite electrode head is positioned over lug plate and platinum filament position to be welded, both keep Contact, and apply 4N/cm2～6N/cm2Pressure；
Step 5: stepping on equipment by foot and connect welding circuit, weld, the time is 2S～3S.
Above-mentioned welding equipment includes that high input voltage transformator 6, low pressure export transformator 7, high pressure Input tranformer 6 is powered to low pressure output transformator 7 by external power supply, low pressure output transformation Device 7 one tunnel connects insulated handle 1, and insulated handle 1 one end is provided with electrode, and electrode is graphite Carbon-point 2；Low pressure output transformator 7 separately lead up to foot step on device 3 connect clamping workpiece folder Son 4.
Further, above-mentioned graphite carbon rod 2 termination is tapered.
The welding method of graphitic carbon arc-welding, when principle is work, two electrode pressurization workpiece make two-layer Metal forms certain contact resistance under the pressure of two electrodes, and welding current is from an electrode stream When another electrode two contact resistance points formed moments thermal welding, and welding current moment from Another electrode flow to this electrode along two workpiece and forms loop, does not injure the internal structure of welded piece. Plumb joint use graphite make, termination is tapered, the sharp degree of conical nose regard solder joint size and Fixed, general head diameter is 1mm～2mm, and plumb joint is by hand-held, it is simple to dynamics Control, after plumb joint and workpiece are had good positioning, foot step on device control the break-make in loop, form weldering Connecing electric current, welded with lug plate by platinum filament and cement, the method uses the operation of hand-held plumb joint, can Strong operability, after welding, platinum filament is high with lug plate bonding strength.
Advantage/good effect: carbon arc spot-welding equipment is owing to using low pressure output, to operator Safety is high；Compensate for the deficiency of traditional method solder, its bonding strength and reliability are the biggest Big raising, meets the use requirement to platinum sensor.
Accompanying drawing explanation
Fig. 1 is the structural representation of graphitic carbon arc-welding machine；
Fig. 2 is that lug plate welds schematic diagram with platinum filament；
Wherein, 1: insulated handle, 2: graphite carbon rod, 3: foot step on device, 4: clip, 5: External power supply, 6: high input voltage transformator, 7: low pressure output transformator, 8: lug plate, 9: Platinum filament, 10: spot welding region.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is described in further detail.
A kind of method improving platinum filament and lug plate welding quality, comprises the following steps:
Step 1: by lug plate 8 bending；
Step 2: platinum filament 9 is put into inside bending；
Step 3: switch on power 5, adjusts welding equipment parameter so that welding circuit voltage is 30V～36V；
Step 4: graphite electrode head is positioned over lug plate and platinum filament position to be welded 10, Liang Zhebao Hold contact, and apply 4N/cm2～6N/cm2Pressure；
Step 5: connect welding circuit by foot step on device 3, weld, the time is 2S～3S, Lug plate is cemented with platinum filament fusion；
Above-mentioned welding equipment includes that high input voltage transformator 6, low pressure export transformator 7, high pressure Input tranformer 6 is powered to low pressure output transformator 7 by external power supply, low pressure output transformation Device 7 one tunnel connects insulated handle 1, and insulated handle 1 one end is provided with electrode, and electrode is graphite Carbon-point 2；Low pressure output transformator 7 separately lead up to foot step on device 3 connect clamping workpiece folder Son 4.Clamping lug plate 8 with clip 4 during use, energising, then by foot step on device 3 connect welding circuit, and welding position is welded by hand-held insulated handle 1, and the time is 2S～3S, Lug plate is cemented, as shown in Figure 1, 2 with platinum filament fusion.
Above-mentioned electrode tip is tapered, and head diameter is about 2mm, is allowed to and lug plate size Similar, can preferably weld.
A few type platinum filament class thermal resistance sensor lug plates produced and platinum filament all use graphite carbon arc Weldering, after using graphitic carbon arc welding technique, reliability is greatly improved, the product being delivered for use Fracture defect does not occurs in junction, and using effect is good.

Claims (1)

1. the method improving platinum filament and lug plate welding quality, it is characterised in that: include Following steps:
Step 1: by lug plate bending；
Step 2: platinum filament is put into inside bending；
Step 3: adjust welding equipment parameter,
Voltage: low pressure 30V～36V,
Step 4: graphite electrode head is positioned over lug plate and platinum filament position to be welded, both keep Contact, and apply 4N/cm2～6N/cm2Pressure；
Step 5: stepping on equipment by foot and connect welding circuit, weld, the time is 2S～3S.
CN201310626681.8A 2013-11-28 2013-11-28 A kind of method improving platinum filament and lug plate welding quality and equipment thereof Active CN103737147B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310626681.8A CN103737147B (en) 2013-11-28 2013-11-28 A kind of method improving platinum filament and lug plate welding quality and equipment thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310626681.8A CN103737147B (en) 2013-11-28 2013-11-28 A kind of method improving platinum filament and lug plate welding quality and equipment thereof

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CN103737147A CN103737147A (en) 2014-04-23
CN103737147B true CN103737147B (en) 2016-10-19

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106493444A (en) * 2016-12-03 2017-03-15 无锡职业技术学院 High performance graphite material superconduction welding system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB472363A (en) * 1935-11-21 1937-09-22 Elin Ag Elek Ind Wien Improvements in or relating to carbon arc welding
CN1069527A (en) * 1991-08-09 1993-03-03 东北重型机械学院 Carbon arc carburizing
CN2187087Y (en) * 1993-07-27 1995-01-11 蒋路平 Energy-saving carbon arc welding or cutting machine
CN201455507U (en) * 2009-08-07 2010-05-12 中国十五冶金建设有限公司 Special arc striking device for welding copper bus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110039980A (en) * 2009-10-13 2011-04-20 대우조선해양 주식회사 Cooling device for welding carriage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB472363A (en) * 1935-11-21 1937-09-22 Elin Ag Elek Ind Wien Improvements in or relating to carbon arc welding
CN1069527A (en) * 1991-08-09 1993-03-03 东北重型机械学院 Carbon arc carburizing
CN2187087Y (en) * 1993-07-27 1995-01-11 蒋路平 Energy-saving carbon arc welding or cutting machine
CN201455507U (en) * 2009-08-07 2010-05-12 中国十五冶金建设有限公司 Special arc striking device for welding copper bus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
铝母线的碳弧焊接;杨猛;《四川建筑》;20091028;第29卷(第5期);第174-175页 *

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