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JPS5768270A - Control method for plasma cutting - Google Patents

Control method for plasma cutting

Info

Publication number
JPS5768270A
JPS5768270AJP14433780AJP14433780AJPS5768270AJP S5768270 AJPS5768270 AJP S5768270AJP 14433780 AJP14433780 AJP 14433780AJP 14433780 AJP14433780 AJP 14433780AJP S5768270 AJPS5768270 AJP S5768270A
Authority
JP
Japan
Prior art keywords
arc
gaseous
cutting
working gas
timer
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
JP14433780A
Other languages
Japanese (ja)
Other versions
JPS6116226B2 (en
Inventor
Akiyoshi Imanaga
Hironari Taguchi
Mitsuaki Haneda
Masatoshi Kanamaru
Kotaro Yamamoto
Minoru Shimada
Kyoichi Ozaki
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
Via Mechanics Ltd
Original Assignee
Hitachi Ltd
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 Ltd, Hitachi Seiko LtdfiledCriticalHitachi Ltd
Priority to JP14433780ApriorityCriticalpatent/JPS5768270A/en
Publication of JPS5768270ApublicationCriticalpatent/JPS5768270A/en
Publication of JPS6116226B2publicationCriticalpatent/JPS6116226B2/ja
Grantedlegal-statusCriticalCurrent

Links

Landscapes

Abstract

PURPOSE: To perform arc transfer smoothly and relieve abrupt load at the starting by supplying or stopping the supply of the plasma arc, water, the 1st working gas and the 2nd working gas respectively at suitable timings at the starting and the ending of cutting.
CONSTITUTION: At the starting, the 1st working gas G1 consisting of, for example, gaseous Ar, is flowed, and a pilot arc is applied between an electrode and a nozzle via a timer T1 in the gaseous G1 atmosphere. A plasma arc is generated from the electrode to the material to be cut by this pilot arc, and the plasma current I is increased like a slope up to a set value as shown by the solid line. The supply of the water ejected from around the plasma arc is started via a timer T3. Next, the 2nd working gas G2 such as gaseous Ar+H2 is supplied in synchronization with the cutting start and is joined with the gaseous G1, and the cutting is continued. At the end of the cutting, the supply of the gas G2 and the water is stopped upon stopping of the arc, and the gas G1 is stopped after timing out of a timer T2.
COPYRIGHT: (C)1982,JPO&Japio
JP14433780A1980-10-171980-10-17Control method for plasma cuttingGrantedJPS5768270A (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
JP14433780AJPS5768270A (en)1980-10-171980-10-17Control method for plasma cutting

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP14433780AJPS5768270A (en)1980-10-171980-10-17Control method for plasma cutting

Publications (2)

Publication NumberPublication Date
JPS5768270Atrue JPS5768270A (en)1982-04-26
JPS6116226B2 JPS6116226B2 (en)1986-04-28

Family

ID=15359757

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP14433780AGrantedJPS5768270A (en)1980-10-171980-10-17Control method for plasma cutting

Country Status (1)

CountryLink
JP (1)JPS5768270A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US4692582A (en)*1985-02-221987-09-08L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges ClaudePlasma welding or cutting system provided with a delay
US4803405A (en)*1986-04-181989-02-07Koike Sanso Kogyo Co.Plasma processing apparatus and method
US5017752A (en)*1990-03-021991-05-21Esab Welding Products, Inc.Plasma arc torch starting process having separated generated flows of non-oxidizing and oxidizing gas
US5070227A (en)*1990-04-241991-12-03Hypertherm, Inc.Proceses and apparatus for reducing electrode wear in a plasma arc torch
US5591357A (en)*1988-06-071997-01-07Hypertherm, Inc.Plasma arc cutting process and apparatus using an oxygen-rich gas shield
US5695662A (en)*1988-06-071997-12-09Hypertherm, Inc.Plasma arc cutting process and apparatus using an oxygen-rich gas shield
EP0998174A1 (en)*1998-10-282000-05-03The Esab Group, Inc.Apparatus and method for supplying fluids to a plasma arc torch
US6163009A (en)*1998-10-232000-12-19Innerlogic, Inc.Process for operating a plasma arc torch
US6677551B2 (en)1998-10-232004-01-13Innerlogic, Inc.Process for operating a plasma arc torch
US9949356B2 (en)2012-07-112018-04-17Lincoln Global, Inc.Electrode for a plasma arc cutting torch

Cited By (13)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US4692582A (en)*1985-02-221987-09-08L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges ClaudePlasma welding or cutting system provided with a delay
US4803405A (en)*1986-04-181989-02-07Koike Sanso Kogyo Co.Plasma processing apparatus and method
US5591357A (en)*1988-06-071997-01-07Hypertherm, Inc.Plasma arc cutting process and apparatus using an oxygen-rich gas shield
US5695662A (en)*1988-06-071997-12-09Hypertherm, Inc.Plasma arc cutting process and apparatus using an oxygen-rich gas shield
US5017752A (en)*1990-03-021991-05-21Esab Welding Products, Inc.Plasma arc torch starting process having separated generated flows of non-oxidizing and oxidizing gas
US5070227A (en)*1990-04-241991-12-03Hypertherm, Inc.Proceses and apparatus for reducing electrode wear in a plasma arc torch
US5170033A (en)*1990-04-241992-12-08Hypertherm, Inc.Swirl ring and flow control process for a plasma arc torch
US6163009A (en)*1998-10-232000-12-19Innerlogic, Inc.Process for operating a plasma arc torch
US6677551B2 (en)1998-10-232004-01-13Innerlogic, Inc.Process for operating a plasma arc torch
EP0998174A1 (en)*1998-10-282000-05-03The Esab Group, Inc.Apparatus and method for supplying fluids to a plasma arc torch
US6121570A (en)*1998-10-282000-09-19The Esab Group, Inc.Apparatus and method for supplying fluids to a plasma arc torch
US6232575B1 (en)1998-10-282001-05-15The Esab Group, Inc.Apparatus and method for supplying fluids to a plasma arc torch
US9949356B2 (en)2012-07-112018-04-17Lincoln Global, Inc.Electrode for a plasma arc cutting torch

Also Published As

Publication numberPublication date
JPS6116226B2 (en)1986-04-28

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