JPS54133410A - Production of cold rolled steel sheets - Google Patents

Production of cold rolled steel sheets

Info

Publication number
JPS54133410A
JPS54133410A JP4155478A JP4155478A JPS54133410A JP S54133410 A JPS54133410 A JP S54133410A JP 4155478 A JP4155478 A JP 4155478A JP 4155478 A JP4155478 A JP 4155478A JP S54133410 A JPS54133410 A JP S54133410A
Authority
JP
Japan
Prior art keywords
steel hoop
annealing
rolled steel
annealing furnace
cold rolled
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
JP4155478A
Other languages
Japanese (ja)
Other versions
JPS5761094B2 (en
Inventor
Kozaburo Ichida
Kozo Yamazaki
Yasuo Hamamoto
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.)
Nippon Steel Corp
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP4155478A priority Critical patent/JPS54133410A/en
Publication of JPS54133410A publication Critical patent/JPS54133410A/en
Publication of JPS5761094B2 publication Critical patent/JPS5761094B2/ja
Granted 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To save descaling step of hot rolled steel hoops by the cold rolling the hot rolled steel hoop in succession then annealing the same in an annealing furnace of reducing gas atmosphere. CONSTITUTION:The steel hoop produced through hot rolling is cold rolled without removing the sale of its surfaces. At this time, cracks are produced in the scale of the steel hoop surfaces by making draft more than 40%, due to which the scale peels and its pickup reduces down to more than 1/5. This cold rolled steel hoop is annealed in an open coil annealing furnace and continuous annealing furnace. The atmosphere in the annealing furnace is the mixed reducing atmosphere of nitrogen-hydrogen of more than 4% of a hydrogen density and the annealing is accomplished for more than 30 secodns at the annealing temperature above 500 deg.C. Since the oxide film slightly remained on the steel hoop surface is reduced, the need for facilities and treatment costs for descaling after hot rolling as with conventional processes may be eliminated.
JP4155478A 1978-04-08 1978-04-08 Production of cold rolled steel sheets Granted JPS54133410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4155478A JPS54133410A (en) 1978-04-08 1978-04-08 Production of cold rolled steel sheets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4155478A JPS54133410A (en) 1978-04-08 1978-04-08 Production of cold rolled steel sheets

Publications (2)

Publication Number Publication Date
JPS54133410A true JPS54133410A (en) 1979-10-17
JPS5761094B2 JPS5761094B2 (en) 1982-12-22

Family

ID=12611637

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4155478A Granted JPS54133410A (en) 1978-04-08 1978-04-08 Production of cold rolled steel sheets

Country Status (1)

Country Link
JP (1) JPS54133410A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56156718A (en) * 1980-05-07 1981-12-03 Nippon Steel Corp Manufacture of cold rolled steel plate
KR100334008B1 (en) * 1997-12-29 2002-08-21 주식회사 포스코 Continuous annealing method of reducing pick-ups for high strength steel
CN106670743A (en) * 2016-12-14 2017-05-17 安徽楚江特钢有限公司 Manufacturing method of longitudinal welded pipe of precision gas spring

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56156718A (en) * 1980-05-07 1981-12-03 Nippon Steel Corp Manufacture of cold rolled steel plate
JPS6250530B2 (en) * 1980-05-07 1987-10-26 Nippon Steel Corp
KR100334008B1 (en) * 1997-12-29 2002-08-21 주식회사 포스코 Continuous annealing method of reducing pick-ups for high strength steel
CN106670743A (en) * 2016-12-14 2017-05-17 安徽楚江特钢有限公司 Manufacturing method of longitudinal welded pipe of precision gas spring
CN106670743B (en) * 2016-12-14 2019-06-11 安徽楚江特钢有限公司 A kind of manufacturing method of precision gas spring straight seam welded pipe

Also Published As

Publication number Publication date
JPS5761094B2 (en) 1982-12-22

Similar Documents

Publication Publication Date Title
JPS6471505A (en) Method and device for manufacturing moldable steel band
GB873149A (en) Method of producing oriented silicon steel
JPS54133410A (en) Production of cold rolled steel sheets
DK0469980T3 (en) Process for producing a magnetic steel plate with non-oriented grains and plate produced by this method
US5783000A (en) Method for heat treatment of steel, and products of steel
ES270590A1 (en) Production of non-oriented ferrous magnetic materials
JPS5681629A (en) Continuous annealing method of cold-rolled steel plate
JPS5483620A (en) Manufacture of oriented electrical steel sheet
JPS5770232A (en) Production of ferritic stainless steel sheet having excellent workability
JPS5485123A (en) Manufacture of cold rolled steel sheet or steel sheet for surface treatment
JPS56102520A (en) Manufacture of nonoriented silicon steel sheet very low in iron loss
JPS5770231A (en) Production of ferritic stainless steel sheet having excellent workability
JPS52119407A (en) Method and equipment for heating rolled steel material
JPS5655520A (en) Production of surface decarbonized high carbon steel strip
GB911660A (en) Double oriented iron-silicon magnetic sheets
JPS5770234A (en) Method of manufacture of ferritic stainless thin steel plate excellent in surface property and less in ribbing
JPS5547319A (en) Manufacture of thin steel sheet according to ultra short time annealing
JPS5514863A (en) Preparation of unidirectional electrical steel sheet by continuous annealing
JPS57134576A (en) Production of steel strip
RU1801133C (en) Method of band making of carbon steel
JPS5514174A (en) Production of cold rolled steel plate
GB757012A (en) Improvements relating to method and apparatus for reducing silicon steel strip
JPS5763638A (en) Production of wire rod for cold forging
JPS5757830A (en) Production of homogeneous hot rolled steel material using continuously cast ingot and billet heating furnace
JPS5299911A (en) Process and apparatus for purging box-type annealing furnace