GB1267820A

GB1267820A – Method of and apparatus for initiating a gas scarfing process of a metal workpiece
– Google Patents

GB1267820A – Method of and apparatus for initiating a gas scarfing process of a metal workpiece
– Google Patents
Method of and apparatus for initiating a gas scarfing process of a metal workpiece

Info

Publication number
GB1267820A

GB1267820A
GB07474/69A
GB1747469A
GB1267820A
GB 1267820 A
GB1267820 A
GB 1267820A
GB 07474/69 A
GB07474/69 A
GB 07474/69A
GB 1747469 A
GB1747469 A
GB 1747469A
GB 1267820 A
GB1267820 A
GB 1267820A
Authority
GB
United Kingdom
Prior art keywords
workpiece
scarfing
electrode
holder
pool
Prior art date
1968-05-16
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.)

Expired

Application number
GB07474/69A
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.)

AGA AB

Original Assignee
AGA AB
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.)
1968-05-16
Filing date
1969-04-03
Publication date
1972-03-22

1969-04-03
Application filed by AGA AB
filed
Critical
AGA AB

1972-03-22
Publication of GB1267820A
publication
Critical
patent/GB1267820A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

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

B23K7/00—Cutting, scarfing, or desurfacing by applying flames

B23K7/06—Machines, apparatus, or equipment specially designed for scarfing or desurfacing

Abstract

1,267,820. Scarfing. AGA AB. 3 April, 1969 [16 May, 1968], No. 17474/69. Heading B3V. The gas scarfing of a workpiece 6 is initiated by moving, during the relative movement between the workpiece and a scarfing nozzle 7, a consumable electrode 3 towards the workpieee to form a molten pool on the workpiece surface, which pool has a sufficiently high temperature to be ignited by the scarfing oxygen. Just before a defect 8 is reached by the scarfing nozzle 7, the start button of the machine is actuated to cause the electrode 3 to be fed into contact with the workpiece immediately in front of the defect 8. Simultaneously an electric current is supplied to the electrode 3 and an electrode holder 1 pivoted about a pivot 2 towards a vertical position at a speed proportional to the relative velocity between the scarfing nozzle 7 and workpiece. A pool of molten metal is thereby formed on the workpiece surface. When the holder 1 has reached the vertical position, the electrode feed is stopped, the scarfing oxygen stream is initiated and the holder 1 rapidly returned to its initial position. The workpiece is preheated by heating flames 9. The machine may include a plurality of gas burners 7 having corresponding electrodes 3. Suitable electrical control circuits are disclosed (Figs. 2 and 3, not shown).

GB07474/69A
1968-05-16
1969-04-03
Method of and apparatus for initiating a gas scarfing process of a metal workpiece

Expired

GB1267820A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

SE663168

1968-05-16

Publications (1)

Publication Number
Publication Date

GB1267820A
true

GB1267820A
(en)

1972-03-22

Family
ID=20269204
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB07474/69A
Expired

GB1267820A
(en)

1968-05-16
1969-04-03
Method of and apparatus for initiating a gas scarfing process of a metal workpiece

Country Status (4)

Country
Link

US
(1)

US3658599A
(en)

DE
(1)

DE1924794B2
(en)

FR
(1)

FR2008634A1
(en)

GB
(1)

GB1267820A
(en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

SE404498B
(en)

*

1973-04-18
1978-10-09
Nippon Steel Corp

METHOD TO START A PLANING OPERATION FOR PLASTING EXTERNAL DEFECTS ON A METAL MATERIAL AND APPLIANCE FOR PERFORMING THE KIT

US3915762A
(en)

*

1974-08-02
1975-10-28
Nippon Steel Corp
Method of initiating scarfing and consumable electrode therefor

US3966503A
(en)

*

1975-01-13
1976-06-29
Union Carbide Corporation
Method for making instantaneous scarfing starts

US3991985A
(en)

*

1975-01-13
1976-11-16
Union Carbide Corporation
Apparatus for making an instantaneous scarfing start

SE407352B
(en)

*

1976-07-19
1979-03-26
Centro Maskin Goteborg Ab

PROCEDURE AND DEVICE FOR GAS PLADING A SUBJECT SURFACE FOR REMOVING SURFACE DEFECTS

US4139757A
(en)

*

1977-03-14
1979-02-13
Centro-Maskin Goteborg Ab
Method and device for igniting gas planing

FR2383744A1
(en)

*

1977-03-18
1978-10-13
Centro Maskin Goteborg Ab
Gas actuated planing device ignition system – has spot heating source forming strip of preheated metal on workpiece (SW 25.4.77)

DE3149477A1
(en)

*

1981-12-14
1983-06-23
Naučno-issledovatel’skij institut Metallurgii, Čeljabinsk
A process for preparing a molten bath in flame descaling, and device for carrying it out

Family Cites Families (5)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US2309096A
(en)

*

1940-01-27
1943-01-26
Linde Air Prod Co
Method and apparatus for conditioning metal bodies

US2381355A
(en)

*

1943-08-26
1945-08-07
Marine Iron & Ship Building Co
Means for cutting metal

US2513425A
(en)

*

1945-01-24
1950-07-04
Linde Air Prod Co
Automatic arc-started thermochemical metal removal apparatus

GB610350A
(en)

*

1945-05-19
1948-10-14
Linde Air Prod Co
Automatic rod feed for metal removal

FR1429840A
(en)

*

1965-04-08
1966-02-25
Vyskumny Ustav Zvaracsky Mhd

Method and device for the initiation of sparking in the surface treatment of metals

1969

1969-04-03
GB
GB07474/69A
patent/GB1267820A/en
not_active
Expired

1969-05-05
FR
FR6914297A
patent/FR2008634A1/fr
not_active
Withdrawn

1969-05-14
US
US824602A
patent/US3658599A/en
not_active
Expired – Lifetime

1969-05-14
DE
DE19691924794
patent/DE1924794B2/en
not_active
Withdrawn

Also Published As

Publication number
Publication date

FR2008634A1
(en)

1970-01-23

DE1924794B2
(en)

1972-02-24

US3658599A
(en)

1972-04-25

DE1924794A1
(en)

1970-02-19

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