IT1225341B - Circuito di protezione per una apparecchiatura di saldatura o taglio al plasma con arco non trasferito o trasferito - Google Patents

Circuito di protezione per una apparecchiatura di saldatura o taglio al plasma con arco non trasferito o trasferito

Info

Publication number
IT1225341B
IT1225341B IT8803664A IT366488A IT1225341B IT 1225341 B IT1225341 B IT 1225341B IT 8803664 A IT8803664 A IT 8803664A IT 366488 A IT366488 A IT 366488A IT 1225341 B IT1225341 B IT 1225341B
Authority
IT
Italy
Prior art keywords
transferred
protection circuit
cutting equipment
plasma welding
arc
Prior art date
Application number
IT8803664A
Other languages
English (en)
Other versions
IT8803664A0 (it
Inventor
Silvano Dallavalle
Raffaele Ansaloni
Original Assignee
Cebora Spa
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 Cebora Spa filed Critical Cebora Spa
Priority to IT8803664A priority Critical patent/IT1225341B/it
Publication of IT8803664A0 publication Critical patent/IT8803664A0/it
Priority to US07/426,731 priority patent/US4987285A/en
Application granted granted Critical
Publication of IT1225341B publication Critical patent/IT1225341B/it

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
    • B23K9/00—Arc welding or cutting
    • B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
    • B23K9/1006—Power supply
    • B23K9/1012—Power supply characterised by parts of the process
    • B23K9/1031—Reduction of the arc voltage beneath the arc striking value, e.g. to zero voltage, during non-welding periods

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Plasma Technology (AREA)
  • Arc Welding In General (AREA)
IT8803664A 1988-11-15 1988-11-15 Circuito di protezione per una apparecchiatura di saldatura o taglio al plasma con arco non trasferito o trasferito IT1225341B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT8803664A IT1225341B (it) 1988-11-15 1988-11-15 Circuito di protezione per una apparecchiatura di saldatura o taglio al plasma con arco non trasferito o trasferito
US07/426,731 US4987285A (en) 1988-11-15 1989-10-24 Protection circuit for plasma-arc welding and cutting equipment operated with transferred or non-transferred arc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8803664A IT1225341B (it) 1988-11-15 1988-11-15 Circuito di protezione per una apparecchiatura di saldatura o taglio al plasma con arco non trasferito o trasferito

Publications (2)

Publication Number Publication Date
IT8803664A0 IT8803664A0 (it) 1988-11-15
IT1225341B true IT1225341B (it) 1990-11-13

Family

ID=11111250

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8803664A IT1225341B (it) 1988-11-15 1988-11-15 Circuito di protezione per una apparecchiatura di saldatura o taglio al plasma con arco non trasferito o trasferito

Country Status (2)

Country Link
US (1) US4987285A (it)
IT (1) IT1225341B (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5183990A (en) * 1991-04-12 1993-02-02 The Lincoln Electric Company Method and circuit for protecting plasma nozzle
US5844197A (en) * 1997-07-28 1998-12-01 The Lincoln Electric Company Arc retract circuit and method
US5961855A (en) * 1998-01-28 1999-10-05 Thermal Dynamics Corporation Low voltage electrical based parts-in-place (PIP) system for contact start torch
US6350960B1 (en) 2000-11-28 2002-02-26 Thermal Dynamics Corporation Parts-in-place safety reset circuit and method for contact start plasma-arc torch
US6703581B2 (en) 2001-02-27 2004-03-09 Thermal Dynamics Corporation Contact start plasma torch
JP2004237321A (ja) * 2003-02-06 2004-08-26 Komatsu Sanki Kk プラズマ加工装置
US7022935B1 (en) 2003-12-08 2006-04-04 Illinois Tool Works Inc. Plasma-cutting torch with integrated high frequency starter
US20060191907A1 (en) * 2005-02-07 2006-08-31 Henley Clifton T Welding electrode holder with retractable cable connector
US20070045241A1 (en) * 2005-08-29 2007-03-01 Schneider Joseph C Contact start plasma torch and method of operation
AT502422B1 (de) * 2005-09-09 2007-06-15 Fronius Int Gmbh Verfahren zum betreiben eines wasserdampfplasmabrenners und wasserdampf-schneidgerät
AT502421B1 (de) * 2005-09-09 2007-06-15 Fronius Int Gmbh Wasserdampf-schneidverfahren und brenner hierzu
EP2073243B1 (en) * 2007-12-21 2018-10-03 Applied Materials, Inc. Linear electron source, evaporator using linear electron source, and applications of electron sources
US9833860B1 (en) 2016-07-22 2017-12-05 Lincoln Global, Inc. System and method for plasma arc transfer for plasma cutting

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1615352B2 (de) * 1967-11-02 1971-09-02 VEB Mansfeld Kombinat Wilhelm Pieck, χ 4250 Lutherstadt Eisleben Schaltungsanordnung und vorrichtung fuer plasma handbrenner
US4156125A (en) * 1977-02-28 1979-05-22 Caterpillar Tractor Co. Method of and means for spacing control of plasma arc cutting torch including vector velocity compensation
FR2578138B1 (fr) * 1985-02-22 1987-03-27 Soudure Autogene Francaise Systeme de soudage ou de coupage plasma muni d'une temporisation
US4795882A (en) * 1987-02-09 1989-01-03 Hardwick Steven F Torch positioning apparatus
JP2737262B2 (ja) * 1989-06-29 1998-04-08 富士電機株式会社 回生電力放電用トランジスタの制御方法

Also Published As

Publication number Publication date
US4987285A (en) 1991-01-22
IT8803664A0 (it) 1988-11-15

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961129