JPS57177864A - Production of case hardening steel - Google Patents

Production of case hardening steel

Info

Publication number
JPS57177864A
JPS57177864A JP6142081A JP6142081A JPS57177864A JP S57177864 A JPS57177864 A JP S57177864A JP 6142081 A JP6142081 A JP 6142081A JP 6142081 A JP6142081 A JP 6142081A JP S57177864 A JPS57177864 A JP S57177864A
Authority
JP
Japan
Prior art keywords
case hardening
production
hardening steel
casting
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.)
Granted
Application number
JP6142081A
Other languages
Japanese (ja)
Other versions
JPS636307B2 (en
Inventor
Toshio Yanagiya
Kenji Isogawa
Kunio Yamaguchi
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.)
Daido Steel Co Ltd
Original Assignee
Daido Steel Co 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 Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Priority to JP6142081A priority Critical patent/JPS57177864A/en
Publication of JPS57177864A publication Critical patent/JPS57177864A/en
Publication of JPS636307B2 publication Critical patent/JPS636307B2/ja
Granted 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
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

PURPOSE:To improve toughness and productivity by contg. Al and N in a prescribed range, regulating the amt. of the contained B in the relation with N and regulating the cooling rate for continuous casting. CONSTITUTION:The Al and N in steel is contained, respectively by wt%, at 0.01-0.06% Al and 0.004-0.025% N, and are regulated to a range of <=4.5ppm B and >=1.6X10<-3>XB (ppm) N(wt%). In the case of casting an ingot from molten steel continuously, the cooling rate in the process of casting in set at >=0.2 deg.C/ sec. Thereby, the case hardening steel of less quantity of strain and superior toughness in a surface treatment such as carburizing is obtained.
JP6142081A 1981-04-24 1981-04-24 Production of case hardening steel Granted JPS57177864A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6142081A JPS57177864A (en) 1981-04-24 1981-04-24 Production of case hardening steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6142081A JPS57177864A (en) 1981-04-24 1981-04-24 Production of case hardening steel

Publications (2)

Publication Number Publication Date
JPS57177864A true JPS57177864A (en) 1982-11-01
JPS636307B2 JPS636307B2 (en) 1988-02-09

Family

ID=13170581

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6142081A Granted JPS57177864A (en) 1981-04-24 1981-04-24 Production of case hardening steel

Country Status (1)

Country Link
JP (1) JPS57177864A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7169238B2 (en) * 2003-12-22 2007-01-30 Caterpillar Inc Carbide method and article for hard finishing resulting in improved wear resistance

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5187431A (en) * 1975-01-31 1976-07-31 Kawasaki Steel Co Hyomenwarenonai haganechuhennorenzokuchuzonyoruseizohoho
JPS55109503A (en) * 1979-02-16 1980-08-23 Nippon Steel Corp Direct rolling method for hot cast billet

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5187431A (en) * 1975-01-31 1976-07-31 Kawasaki Steel Co Hyomenwarenonai haganechuhennorenzokuchuzonyoruseizohoho
JPS55109503A (en) * 1979-02-16 1980-08-23 Nippon Steel Corp Direct rolling method for hot cast billet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7169238B2 (en) * 2003-12-22 2007-01-30 Caterpillar Inc Carbide method and article for hard finishing resulting in improved wear resistance

Also Published As

Publication number Publication date
JPS636307B2 (en) 1988-02-09

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