GB569540A - An improved method of electric welding - Google Patents

An improved method of electric welding

Info

Publication number
GB569540A
GB569540A GB1693143A GB1693143A GB569540A GB 569540 A GB569540 A GB 569540A GB 1693143 A GB1693143 A GB 1693143A GB 1693143 A GB1693143 A GB 1693143A GB 569540 A GB569540 A GB 569540A
Authority
GB
United Kingdom
Prior art keywords
switch
welding
resistance
rectifier
condenser
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1693143A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pressed Steel Co Ltd
SPS Technologies LLC
Original Assignee
Pressed Steel Co Ltd
Standard Pressed Steel Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pressed Steel Co Ltd, Standard Pressed Steel Co filed Critical Pressed Steel Co Ltd
Priority to GB1693143A priority Critical patent/GB569540A/en
Publication of GB569540A publication Critical patent/GB569540A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/24—Electric supply or control circuits therefor
    • B23K11/26—Storage discharge welding

Abstract

569,540. Control systems for resistance welding. PRESSED STEEL CO., Ltd., and SIMMIE, W. S. Oct. 15, 1943, No. 16931. [Class 38 (iv)] In a butt welding system of the kind in which a condenser 11 is charged through a rectifier 13 and then discharged through the primary winding 15 of a welding transformer 16, the work is first flashed or pre-heated by including in the discharge circuit an adjustable resistance 18 which limits the discharge current. A switch 19, preferably of the ignitron type, subsequently short circuits resistance 18 and allows the full welding current to flow, The charging switch 12 between the condenser and the rectifier opens when the welding switch 14 in the discharge circuit is closed. The work may be coated with a flux, or a reducing atmosphere otherwise provided, during the preheating operation. To avoid loss of charge from the condenser during pre-heating, the switch 12 may be omitted and a normally closed switch, preferably of the ignitron type, provided on the input side of the rectifier, this switch being arranged to open only when the short-circuiting switch of the resistance is closed.
GB1693143A 1943-10-15 1943-10-15 An improved method of electric welding Expired GB569540A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1693143A GB569540A (en) 1943-10-15 1943-10-15 An improved method of electric welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1693143A GB569540A (en) 1943-10-15 1943-10-15 An improved method of electric welding

Publications (1)

Publication Number Publication Date
GB569540A true GB569540A (en) 1945-05-29

Family

ID=10086238

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1693143A Expired GB569540A (en) 1943-10-15 1943-10-15 An improved method of electric welding

Country Status (1)

Country Link
GB (1) GB569540A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2683204A (en) * 1950-12-21 1954-07-06 Hughes Aircraft Co Circuits for welding semiconductor devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2683204A (en) * 1950-12-21 1954-07-06 Hughes Aircraft Co Circuits for welding semiconductor devices

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