GB2004490A - Method and apparatus for producing a post-mixed, stabilized scarfing preheating flame - Google Patents

Method and apparatus for producing a post-mixed, stabilized scarfing preheating flame

Info

Publication number
GB2004490A
GB2004490A GB7837935A GB7837935A GB2004490A GB 2004490 A GB2004490 A GB 2004490A GB 7837935 A GB7837935 A GB 7837935A GB 7837935 A GB7837935 A GB 7837935A GB 2004490 A GB2004490 A GB 2004490A
Authority
GB
United Kingdom
Prior art keywords
scarfing
flame
stabilized
mixed
present
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
GB7837935A
Other versions
GB2004490B (en
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.)
Union Carbide Corp
Original Assignee
Union Carbide 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
Priority claimed from US05/836,512 external-priority patent/US4115154A/en
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB2004490A publication Critical patent/GB2004490A/en
Application granted granted Critical
Publication of GB2004490B publication Critical patent/GB2004490B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/48—Nozzles
    • F23D14/56—Nozzles for spreading the flame over an area, e.g. for desurfacing of solid material, for surface hardening, or for heating workpieces
    • 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
    • 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
    • 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
    • B23K7/08—Cutting, scarfing, or desurfacing by applying flames by applying additional compounds or means favouring the cutting, scarfing, or desurfacing procedure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Furnace Details (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Saccharide Compounds (AREA)
  • Dc-Dc Converters (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The present invention relates to the thermochemical scarfing of metal workpieces. The present invention seeks to provide a method for scarfing the surface of a metal workpiece that provides acceptably short preheat times for scarfing relative cold workpieces without being subject to flashback and without requiring adjuvant material. In accordance with the present invention post-mixed scarfing pre- heating flame is produced by discharging fuel and oxygen from separate ports to impinge forming acute included angle. The flame is stabilized with a low-intensity stream of oxygen, directed in same general direction as the flame, close to but not passing through the point of impingement. <IMAGE>
GB7837935A 1977-09-26 1978-09-25 Method and apparatus for producing a post-mixed stabilized scarfing preheating flame Expired GB2004490B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/836,512 US4115154A (en) 1977-09-26 1977-09-26 Method and apparatus for producing a post-mixed, stabilized scarfing pre-heating flame
US05/921,810 US4161413A (en) 1977-09-26 1978-07-03 Method and apparatus for producing a post-mixed, stabilized scarfing pre-heating flame

Publications (2)

Publication Number Publication Date
GB2004490A true GB2004490A (en) 1979-04-04
GB2004490B GB2004490B (en) 1982-11-17

Family

ID=27125875

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7837935A Expired GB2004490B (en) 1977-09-26 1978-09-25 Method and apparatus for producing a post-mixed stabilized scarfing preheating flame

Country Status (24)

Country Link
JP (1) JPS5811305B2 (en)
AR (1) AR217710A1 (en)
AU (1) AU518655B2 (en)
BG (1) BG42353A3 (en)
BR (1) BR7806291A (en)
CA (1) CA1079181A (en)
CS (1) CS220322B2 (en)
DE (1) DE2841704C3 (en)
EG (1) EG13617A (en)
ES (2) ES473632A1 (en)
FR (1) FR2403860A1 (en)
GB (1) GB2004490B (en)
HU (1) HU176173B (en)
IT (1) IT1106093B (en)
LU (1) LU80280A1 (en)
MX (1) MX156486A (en)
NL (1) NL7809695A (en)
NO (1) NO147904C (en)
PL (1) PL209800A1 (en)
RO (1) RO77452A (en)
SE (2) SE437947B (en)
SU (1) SU988178A3 (en)
TR (1) TR20332A (en)
YU (2) YU41839B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127338A (en) * 1981-09-28 1984-04-11 Sumitomo Metal Ind Scarfing method and apparatus
EP0331766A1 (en) * 1988-03-05 1989-09-13 Fa. Horst K. Lotz Limiting of scarfing puddle width by means of granulation

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6387790U (en) * 1986-11-27 1988-06-08
DE102009052436A1 (en) * 2009-11-10 2011-05-12 Elena Nikitina Device for electric arc treatment i.e. electric arc plasma cleaning, of surface of metal product in vacuum in e.g. iron industry, has electrode arranged at distance from product surface, where distance lies in range within free path length
JP5601055B2 (en) * 2010-07-06 2014-10-08 Ｊｆｅスチール株式会社 Surface care method and apparatus for continuous cast slab
DE102013101184A1 (en) * 2013-02-07 2014-08-07 Gega Lotz Gmbh Flämmblockbaugruppe
US10239143B2 (en) 2013-12-23 2019-03-26 Posco Slab scarfing apparatus and method for controlling the same
EP3393215A1 (en) 2017-04-20 2018-10-24 Andrey Senokosov Arc plasmatron surface treatment
JP7401731B2 (en) * 2019-07-17 2023-12-20 日本製鉄株式会社 Steel material fusing equipment and steel material fusing method
JP7256392B2 (en) * 2019-09-09 2023-04-12 日本製鉄株式会社 Steel cutting method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
YU159370A (en) * 1969-06-25 1977-06-30 Union Carbide Corp Device for preheating and melting the surface layer of metal blocks
JPS535082Y2 (en) * 1973-09-19 1978-02-08

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127338A (en) * 1981-09-28 1984-04-11 Sumitomo Metal Ind Scarfing method and apparatus
EP0331766A1 (en) * 1988-03-05 1989-09-13 Fa. Horst K. Lotz Limiting of scarfing puddle width by means of granulation

Also Published As

Publication number Publication date
NO147904B (en) 1983-03-28
CA1079181A (en) 1980-06-10
ES476037A1 (en) 1979-06-16
LU80280A1 (en) 1979-06-01
JPS5811305B2 (en) 1983-03-02
SU988178A3 (en) 1983-01-07
IT7851232A0 (en) 1978-09-25
NL7809695A (en) 1979-03-28
GB2004490B (en) 1982-11-17
SE8303748L (en) 1983-06-30
PL209800A1 (en) 1979-05-21
YU172682A (en) 1985-06-30
SE7810027L (en) 1979-03-27
NO147904C (en) 1983-07-06
BR7806291A (en) 1979-04-17
NO783240L (en) 1979-03-27
DE2841704B2 (en) 1980-10-09
ES473632A1 (en) 1979-04-16
HU176173B (en) 1980-12-28
SE8303748D0 (en) 1983-06-30
JPS5457447A (en) 1979-05-09
YU41839B (en) 1988-02-29
SE437947B (en) 1985-03-25
YU225878A (en) 1984-04-30
DE2841704A1 (en) 1979-03-29
AU518655B2 (en) 1981-10-15
AR217710A1 (en) 1980-04-15
BG42353A3 (en) 1987-11-14
DE2841704C3 (en) 1981-12-03
AU4008478A (en) 1980-03-27
FR2403860A1 (en) 1979-04-20
TR20332A (en) 1981-02-16
EG13617A (en) 1983-09-30
CS220322B2 (en) 1983-03-25
FR2403860B1 (en) 1984-04-27
MX156486A (en) 1988-08-29
RO77452A (en) 1981-11-04
SE453575B (en) 1988-02-15
IT1106093B (en) 1985-11-11

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970925