JPS55153673A - Slag removing method of scarf nozzle - Google Patents

Slag removing method of scarf nozzle

Info

Publication number
JPS55153673A
JPS55153673A JP5939079A JP5939079A JPS55153673A JP S55153673 A JPS55153673 A JP S55153673A JP 5939079 A JP5939079 A JP 5939079A JP 5939079 A JP5939079 A JP 5939079A JP S55153673 A JPS55153673 A JP S55153673A
Authority
JP
Japan
Prior art keywords
gas
valves
pipeline
nozzle
solenoid valve
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
JP5939079A
Other languages
Japanese (ja)
Inventor
Takeshi Takano
Satoshi Kasai
Ryuichi Kemuriyama
Masanobu Ochiai
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 JP5939079A priority Critical patent/JPS55153673A/en
Publication of JPS55153673A publication Critical patent/JPS55153673A/en
Pending legal-status Critical Current

Links

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  • Arc Welding In General (AREA)

Abstract

PURPOSE: To achieve the saving of repair cost and the improvement of steel material quality by removing the slag deposited at the inflammable gas spouting port of the scarf nozzle and its vicinity by spouting hihg-pressure inert gas from the inflammable gas spouting hole.
CONSTITUTION: During scarfing work, the shut-off valves 6, 8 of an inflammable gas, e.g., propane gas pipeline 4 and the solenoid valve 17 of a release pipeline 16 are held open and the solenoid valves 13, 14 of an inert gas, e.g., N2 gas pipeline 11 and the solenoid valve 9 of a release pipeline 8 are held closed and therefore only the propane gas is supplied to a scarf nozzle 1 and is injected to the slag surface. Several seconds after the ending of the scarfing, the shut-off valves 6, 7 and solenoid valve 17 are put in the close position and the solenoid valves 13, 14, 9 in the open position to supply only the N2 gas to the nozzle 1 and be spouted through the injection orifice thereby blowing away the slag deposited thereon without any oxidation reaction. The respective gases leaking from the respective valves are released from release pipes 8, 16 respectively.
COPYRIGHT: (C)1980,JPO&Japio
JP5939079A 1979-05-15 1979-05-15 Slag removing method of scarf nozzle Pending JPS55153673A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5939079A JPS55153673A (en) 1979-05-15 1979-05-15 Slag removing method of scarf nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5939079A JPS55153673A (en) 1979-05-15 1979-05-15 Slag removing method of scarf nozzle

Publications (1)

Publication Number Publication Date
JPS55153673A true JPS55153673A (en) 1980-11-29

Family

ID=13111901

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5939079A Pending JPS55153673A (en) 1979-05-15 1979-05-15 Slag removing method of scarf nozzle

Country Status (1)

Country Link
JP (1) JPS55153673A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6363570A (en) * 1986-09-04 1988-03-19 Daihen Corp Oxygen plasma cutting method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6363570A (en) * 1986-09-04 1988-03-19 Daihen Corp Oxygen plasma cutting method

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