JPS57168777A - Method and device for arc generation - Google Patents

Method and device for arc generation

Info

Publication number
JPS57168777A
JPS57168777A JP5394181A JP5394181A JPS57168777A JP S57168777 A JPS57168777 A JP S57168777A JP 5394181 A JP5394181 A JP 5394181A JP 5394181 A JP5394181 A JP 5394181A JP S57168777 A JPS57168777 A JP S57168777A
Authority
JP
Japan
Prior art keywords
arc
nozzle
electrode
work
pilot
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.)
Pending
Application number
JP5394181A
Other languages
Japanese (ja)
Inventor
Minoru Shimada
Kotaro Yamamoto
Shunsaku Onishi
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.)
Via Mechanics Ltd
Original Assignee
Hitachi Seiko Ltd
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 Hitachi Seiko Ltd filed Critical Hitachi Seiko Ltd
Priority to JP5394181A priority Critical patent/JPS57168777A/en
Publication of JPS57168777A publication Critical patent/JPS57168777A/en
Pending 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
    • B23K10/00—Welding or cutting by means of a plasma

Abstract

PURPOSE:To prevent the decrease in cutting ability and the damaging of an arc nozzle in the case of cutting a metallic material by the arc using a non-consumable electrode by controlling the start voltage in the stage of transferring from the pilot arc to the main arc at the specific low voltage. CONSTITUTION:In a plasma arc cutter or TIG welding device which generates arcs by using a non-consumable electrode, a castable 10 is mounted via an insulator 8 to the anode 7 of an arc torch to insulate a nozzle 9 electrically. At the start of the work, a working gas is ejected through the nozzle 9 toward the work 5, after which a pilot arc is generated between an electrode 3 and the nozzle 9 with the low voltage from an electric power source 11. Next, the high voltage from an electric power source 13 is applied to generate a plasma main arc (a) between the electrode 3 and the work 5 with the aid of the pilot arc, whereby the work 5 is cut. The decrease in cutting ability by the arc generated between the electrode 3 and the nozzle 9 and the damaging of the nozzle 9 by the arc are obviated.
JP5394181A 1981-04-10 1981-04-10 Method and device for arc generation Pending JPS57168777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5394181A JPS57168777A (en) 1981-04-10 1981-04-10 Method and device for arc generation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5394181A JPS57168777A (en) 1981-04-10 1981-04-10 Method and device for arc generation

Publications (1)

Publication Number Publication Date
JPS57168777A true JPS57168777A (en) 1982-10-18

Family

ID=12956750

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5394181A Pending JPS57168777A (en) 1981-04-10 1981-04-10 Method and device for arc generation

Country Status (1)

Country Link
JP (1) JPS57168777A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6012276A (en) * 1983-07-04 1985-01-22 Daihen Corp Method and device for plasma arc working

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6012276A (en) * 1983-07-04 1985-01-22 Daihen Corp Method and device for plasma arc working

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