GB1079560A - Improvements in or relating to a method of tapping and teeming stainless steel to improve the surface quality of the finished product - Google Patents

Improvements in or relating to a method of tapping and teeming stainless steel to improve the surface quality of the finished product

Info

Publication number
GB1079560A
GB1079560A GB2974665A GB2974665A GB1079560A GB 1079560 A GB1079560 A GB 1079560A GB 2974665 A GB2974665 A GB 2974665A GB 2974665 A GB2974665 A GB 2974665A GB 1079560 A GB1079560 A GB 1079560A
Authority
GB
United Kingdom
Prior art keywords
ladle
mould
teeming
gas
furnace
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.)
Expired
Application number
GB2974665A
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.)
Allegheny Ludlum Steel Corp
Original Assignee
Allegheny Ludlum 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 Allegheny Ludlum Steel Corp filed Critical Allegheny Ludlum Steel Corp
Publication of GB1079560A publication Critical patent/GB1079560A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

1,079,560. Casting processes. ALLEGHENY LUDLUM STEEL CORPORATION. July 13, 1965 [July 15, 1964], No. 29746/65. Heading B3F. [Also in Division F4] In a method of casting stainless steel in which the molten metal is tapped from a furnace 10 into a ladle 16 and then teemed into one or more ingot moulds 28, oxidation of the melt during tapping and teeming is prevented by purging the ladle and moulds with an inert gas such as argon prior to topping and teeming respectively and supplying a protective screen of the gas during the actual pouring from the furnace into the ladle and from the ladle into the mould. The inert gas displaces the air through openings 20 and 32 in the ladle and mould respectively. The gas is then supplied through port 38 in the furnace outlet and by means of a ring 46 positioned over the inlet to the mould. The gas being supplied through a regulator in each case. The opening in the ladle and mould are sealed with a frangible cover 22 and 34 respectively which is destroyed as the molten steel is poured. Other gases which may be used are helium, neon, krypton or xenon.
GB2974665A 1964-07-15 1965-07-13 Improvements in or relating to a method of tapping and teeming stainless steel to improve the surface quality of the finished product Expired GB1079560A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US38289864A 1964-07-15 1964-07-15

Publications (1)

Publication Number Publication Date
GB1079560A true GB1079560A (en) 1967-08-16

Family

ID=23510880

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2974665A Expired GB1079560A (en) 1964-07-15 1965-07-13 Improvements in or relating to a method of tapping and teeming stainless steel to improve the surface quality of the finished product

Country Status (2)

Country Link
BE (1) BE666725A (en)
GB (1) GB1079560A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2655912A1 (en) * 1976-12-09 1978-06-15 Linde Ag Gas distributor fitted under a ladle - to form a gas screen protecting molten metal from oxidn. as it flows into a mould

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2655912A1 (en) * 1976-12-09 1978-06-15 Linde Ag Gas distributor fitted under a ladle - to form a gas screen protecting molten metal from oxidn. as it flows into a mould

Also Published As

Publication number Publication date
BE666725A (en) 1966-01-12

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