JPS6475175A - Method and device for plasma cutting - Google Patents

Method and device for plasma cutting

Info

Publication number
JPS6475175A
JPS6475175A JP23202287A JP23202287A JPS6475175A JP S6475175 A JPS6475175 A JP S6475175A JP 23202287 A JP23202287 A JP 23202287A JP 23202287 A JP23202287 A JP 23202287A JP S6475175 A JPS6475175 A JP S6475175A
Authority
JP
Japan
Prior art keywords
cut
plasma
plasma arc
current
electrode
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.)
Granted
Application number
JP23202287A
Other languages
Japanese (ja)
Other versions
JPH0825015B2 (en
Inventor
Keiji Tanaka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP62232022A priority Critical patent/JPH0825015B2/en
Publication of JPS6475175A publication Critical patent/JPS6475175A/en
Publication of JPH0825015B2 publication Critical patent/JPH0825015B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Arc Welding In General (AREA)
  • Arc Welding Control (AREA)

Abstract

PURPOSE:To cut a thick plate under optimum conditions by setting a plasma jet electric current high as a plasma arc electric current becomes high to hold the plasma jet current even when the plasma arc current is shut off. CONSTITUTION:A necessary plasma arc current value is set by a main current setter 101 according to conditions of a material 20 to be cut. According to this, a necessary minimum plasma jet current value is set by a main current setter 201. A plasma jet is generated between a nozzle 301 and an electrode 302 by a high-frequency generator 11, a pilot power source 12 and a main power source 13. Next, a plasma arc is generated between the electrode 302 and the material 20 to be cut to cut the material 20 to be cut. When the plasma arc is extinguished and only the plasma jet is in a state generated between the electrode 302 and the nozzle 301, the plasma arc is again ignited by closing a switch 17 and bringing the electrode 302 close to the material 20 to be cut.
JP62232022A 1987-09-18 1987-09-18 Plasma cutting method and apparatus thereof Expired - Fee Related JPH0825015B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62232022A JPH0825015B2 (en) 1987-09-18 1987-09-18 Plasma cutting method and apparatus thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62232022A JPH0825015B2 (en) 1987-09-18 1987-09-18 Plasma cutting method and apparatus thereof

Publications (2)

Publication Number Publication Date
JPS6475175A true JPS6475175A (en) 1989-03-20
JPH0825015B2 JPH0825015B2 (en) 1996-03-13

Family

ID=16932735

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62232022A Expired - Fee Related JPH0825015B2 (en) 1987-09-18 1987-09-18 Plasma cutting method and apparatus thereof

Country Status (1)

Country Link
JP (1) JPH0825015B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0397755U (en) * 1990-01-26 1991-10-08
JPH0550234A (en) * 1991-08-27 1993-03-02 Kawasaki Steel Corp Device for underwater cutting of steel material
CN105142844A (en) * 2013-04-02 2015-12-09 松下知识产权经营株式会社 Torch for plasma cutting, plasma cutting power supply, and plasma cutting device
WO2016093216A1 (en) * 2014-12-08 2016-06-16 大陽日酸株式会社 Welding device and plasma welding method
US10131013B2 (en) 2014-03-19 2018-11-20 Taiyo Nippon Sanso Corporation Non-transferred plasma arc system, conversion adapter kit, and non-transferred plasma arc torch

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61219473A (en) * 1985-03-23 1986-09-29 Osaka Denki Kk Control method for stabilizing plasma arc in plasma arc cutting

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61219473A (en) * 1985-03-23 1986-09-29 Osaka Denki Kk Control method for stabilizing plasma arc in plasma arc cutting

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0397755U (en) * 1990-01-26 1991-10-08
JPH0550234A (en) * 1991-08-27 1993-03-02 Kawasaki Steel Corp Device for underwater cutting of steel material
CN105142844A (en) * 2013-04-02 2015-12-09 松下知识产权经营株式会社 Torch for plasma cutting, plasma cutting power supply, and plasma cutting device
JP6010777B2 (en) * 2013-04-02 2016-10-19 パナソニックＩｐマネジメント株式会社 Plasma cutting torch, plasma cutting power source and plasma cutting device
US10131013B2 (en) 2014-03-19 2018-11-20 Taiyo Nippon Sanso Corporation Non-transferred plasma arc system, conversion adapter kit, and non-transferred plasma arc torch
WO2016093216A1 (en) * 2014-12-08 2016-06-16 大陽日酸株式会社 Welding device and plasma welding method
JP2016107307A (en) * 2014-12-08 2016-06-20 大陽日酸株式会社 Welding equipment and plasma welding method
US10610954B2 (en) 2014-12-08 2020-04-07 Taiyo Nippon Sanso Corporation Welding apparatus and plasma welding method

Also Published As

Publication number Publication date
JPH0825015B2 (en) 1996-03-13

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees