JPS5653876A - Flying start method of spot scarfer - Google Patents

Flying start method of spot scarfer

Info

Publication number
JPS5653876A
JPS5653876A JP13067279A JP13067279A JPS5653876A JP S5653876 A JPS5653876 A JP S5653876A JP 13067279 A JP13067279 A JP 13067279A JP 13067279 A JP13067279 A JP 13067279A JP S5653876 A JPS5653876 A JP S5653876A
Authority
JP
Japan
Prior art keywords
electrode
carriage
burner
consumable electrode
slab
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
JP13067279A
Other languages
Japanese (ja)
Inventor
Toshio Tagi
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP13067279A priority Critical patent/JPS5653876A/en
Publication of JPS5653876A publication Critical patent/JPS5653876A/en
Pending legal-status Critical Current

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  • Arc Welding In General (AREA)

Abstract

PURPOSE: To prevent damaging of an ignition nose owing to electrode melting losses, and make possible continuous and stable scarfing by using Al etc. for the consumable electrode at the time of spot scarfing the surface defect parts of a steel slab etc.
CONSTITUTION: A steel slab or the like S is moved on a roller table 1 in the F direction. A gate type frame 2A provided with a carriage 2B equipped with a burner 2D and a consumable electrode 2E is disposed on the way. The electrode gripping part 2F of the carriage is connected to the positive pole of a low voltage large current electric power source 2H and the negative pole is connected to the roller of the roller table 1. Al(alloy) of which the oxide is higher than the m. p. of Fe is used for the consumable electrode 2E. The carriage 2B is moved to the surface defect part of the slab S; the burner 2D and electrode gripping part 2F are lowered; oxygen is spounted from the burner; at the same time, a voltage is applied to the consumable electrode 2E to cause electric discharging between the same and the slab S, whereby scrafing is accomplished. Since the Al electrode is oxidized by oxygen and forms Al2O3 of a high m. p., it does not melt and damage the carriage parts, unlike Fe.
COPYRIGHT: (C)1981,JPO&Japio
JP13067279A 1979-10-08 1979-10-08 Flying start method of spot scarfer Pending JPS5653876A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13067279A JPS5653876A (en) 1979-10-08 1979-10-08 Flying start method of spot scarfer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13067279A JPS5653876A (en) 1979-10-08 1979-10-08 Flying start method of spot scarfer

Publications (1)

Publication Number Publication Date
JPS5653876A true JPS5653876A (en) 1981-05-13

Family

ID=15039848

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13067279A Pending JPS5653876A (en) 1979-10-08 1979-10-08 Flying start method of spot scarfer

Country Status (1)

Country Link
JP (1) JPS5653876A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60241282A (en) * 1984-05-16 1985-11-30 Toshiba Corp Pulse discharge controller
US11143319B2 (en) 2016-09-26 2021-10-12 Kautex Textron Gmbh & Co. Kg Pressure operated shut off valve and fluid distribution system comprising such pressure operated shut off valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60241282A (en) * 1984-05-16 1985-11-30 Toshiba Corp Pulse discharge controller
JPH0239874B2 (en) * 1984-05-16 1990-09-07 Tokyo Shibaura Electric Co
US11143319B2 (en) 2016-09-26 2021-10-12 Kautex Textron Gmbh & Co. Kg Pressure operated shut off valve and fluid distribution system comprising such pressure operated shut off valve

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