JPS5310312A - Treating apparatus at sub-zero - Google Patents

Treating apparatus at sub-zero

Info

Publication number
JPS5310312A
JPS5310312A JP7320576A JP7320576A JPS5310312A JP S5310312 A JPS5310312 A JP S5310312A JP 7320576 A JP7320576 A JP 7320576A JP 7320576 A JP7320576 A JP 7320576A JP S5310312 A JPS5310312 A JP S5310312A
Authority
JP
Japan
Prior art keywords
zero
sub
treating apparatus
hardened
hardened layer
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
JP7320576A
Other languages
Japanese (ja)
Other versions
JPS6041131B2 (en
Inventor
Toshio Yaegashi
Katsutoshi Kataoka
Takao Endo
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.)
Hitachi Ltd
Hitachi Oxigen Ltd
Original Assignee
Hitachi Ltd
Hitachi Oxigen Ltd
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 Hitachi Ltd, Hitachi Oxigen Ltd filed Critical Hitachi Ltd
Priority to JP51073205A priority Critical patent/JPS6041131B2/en
Publication of JPS5310312A publication Critical patent/JPS5310312A/en
Publication of JPS6041131B2 publication Critical patent/JPS6041131B2/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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/04—Hardening by cooling below 0 degrees Celsius

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

PURPOSE:The apparatus for treating at sub-zero with which the large-sized steel product such as rolls of rolling mill, etc. is hardened, the structure of the hardened layer is converted completely to martensite, and the unevenness of hardness does not occur at the hardened layer.
JP51073205A 1976-06-23 1976-06-23 Rigid rotary sub-zero processing method Expired JPS6041131B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51073205A JPS6041131B2 (en) 1976-06-23 1976-06-23 Rigid rotary sub-zero processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51073205A JPS6041131B2 (en) 1976-06-23 1976-06-23 Rigid rotary sub-zero processing method

Publications (2)

Publication Number Publication Date
JPS5310312A true JPS5310312A (en) 1978-01-30
JPS6041131B2 JPS6041131B2 (en) 1985-09-14

Family

ID=13511407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51073205A Expired JPS6041131B2 (en) 1976-06-23 1976-06-23 Rigid rotary sub-zero processing method

Country Status (1)

Country Link
JP (1) JPS6041131B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5681965U (en) * 1979-11-29 1981-07-02
CN113832328A (en) * 2021-09-14 2021-12-24 江苏润孚机械轧辊制造有限公司 Roller manufacturing method of lithium battery pole piece rolling mill

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03624U (en) * 1989-05-23 1991-01-08
CN109694995B (en) * 2018-12-29 2020-11-03 江苏润孚机械轧辊制造有限公司 Preparation method of Cr5 type forged steel working roll for rolling ultrathin materials
CN109763076A (en) * 2019-03-26 2019-05-17 江苏润孚机械轧辊制造有限公司 A kind of manufacturing method for the forged steel working roll rolling very thin material

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50152911A (en) * 1974-05-31 1975-12-09
JPS518108A (en) * 1974-07-11 1976-01-22 Teikoku Sanso Kk Teionekikagasunyoru kinzokuzairyono reikyakuhoho oyobi sonoreikyakusochi

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50152911A (en) * 1974-05-31 1975-12-09
JPS518108A (en) * 1974-07-11 1976-01-22 Teikoku Sanso Kk Teionekikagasunyoru kinzokuzairyono reikyakuhoho oyobi sonoreikyakusochi

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5681965U (en) * 1979-11-29 1981-07-02
CN113832328A (en) * 2021-09-14 2021-12-24 江苏润孚机械轧辊制造有限公司 Roller manufacturing method of lithium battery pole piece rolling mill

Also Published As

Publication number Publication date
JPS6041131B2 (en) 1985-09-14

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