GB669118A - Heat treatment of strip metal - Google Patents

Heat treatment of strip metal

Info

Publication number
GB669118A
GB669118A GB1799349A GB1799349A GB669118A GB 669118 A GB669118 A GB 669118A GB 1799349 A GB1799349 A GB 1799349A GB 1799349 A GB1799349 A GB 1799349A GB 669118 A GB669118 A GB 669118A
Authority
GB
United Kingdom
Prior art keywords
strip
heating
cooling
zone
steel
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
GB1799349A
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.)
Selas Corp of America
Original Assignee
Selas Corp of America
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 Selas Corp of America filed Critical Selas Corp of America
Priority to GB1799349A priority Critical patent/GB669118A/en
Publication of GB669118A publication Critical patent/GB669118A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum

Abstract

A continuous furnace for annealing metal strip especially steel, but also copper, brass, aluminium or magnesium, has a heating zone, a cooling zone and an arrangement of rollers for cold working the steel (see Group XII). The heating zone consists of gas heated incandescent panels which heat the strip by radiation and are movable towards, or away from, the strip for temperature control and may be actuated in response to an electrical temperature-sensitive device. Heating is effected in a neutral atmosphere and a reduction zone may be interpolated between the heating and cooling zones to reduce any oxide formed on the strip during heating. The cooling is carried out in a non-oxidizing atmosphere, e.g. 95 per cent N2, 5 per cent H2. A skim pass may be included after the cooling process. For steel the metal is heated to 1300-1800 DEG F. and is cooled slowly to 900 DEG F. and then as quickly as possible to below oxidizing temperature or 300 DEG F. before emerging into the atmosphere. It is stated that strip covered with lubricant may be annealed without cleaning prior to the heat treatment as the oil is vaporized in the heating zone, and passed away into the exhaust gases. Specification 496,146, [Group XII], is referred to.
GB1799349A 1949-07-07 1949-07-07 Heat treatment of strip metal Expired GB669118A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1799349A GB669118A (en) 1949-07-07 1949-07-07 Heat treatment of strip metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1799349A GB669118A (en) 1949-07-07 1949-07-07 Heat treatment of strip metal

Publications (1)

Publication Number Publication Date
GB669118A true GB669118A (en) 1952-03-26

Family

ID=10104776

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1799349A Expired GB669118A (en) 1949-07-07 1949-07-07 Heat treatment of strip metal

Country Status (1)

Country Link
GB (1) GB669118A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS508711A (en) * 1973-05-26 1975-01-29
JPS50139707U (en) * 1974-05-02 1975-11-18
JPS5328365B1 (en) * 1970-01-24 1978-08-14
CN109797278A (en) * 2019-03-20 2019-05-24 安徽智磁新材料科技有限公司 Ultrathin nanometer crystal zone material multistage annealing device
CN114300572A (en) * 2021-11-24 2022-04-08 中国电子科技集团公司第十一研究所 Heat treatment device and method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5328365B1 (en) * 1970-01-24 1978-08-14
JPS508711A (en) * 1973-05-26 1975-01-29
JPS5514850B2 (en) * 1973-05-26 1980-04-19
JPS50139707U (en) * 1974-05-02 1975-11-18
CN109797278A (en) * 2019-03-20 2019-05-24 安徽智磁新材料科技有限公司 Ultrathin nanometer crystal zone material multistage annealing device
CN114300572A (en) * 2021-11-24 2022-04-08 中国电子科技集团公司第十一研究所 Heat treatment device and method
CN114300572B (en) * 2021-11-24 2024-03-19 中国电子科技集团公司第十一研究所 Heat treatment device and method

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