JPS54104425A - Heat treating method for high chromium white cast iron - Google Patents

Heat treating method for high chromium white cast iron

Info

Publication number
JPS54104425A
JPS54104425A JP1150178A JP1150178A JPS54104425A JP S54104425 A JPS54104425 A JP S54104425A JP 1150178 A JP1150178 A JP 1150178A JP 1150178 A JP1150178 A JP 1150178A JP S54104425 A JPS54104425 A JP S54104425A
Authority
JP
Japan
Prior art keywords
cast iron
parts
heat treating
treating method
white cast
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.)
Pending
Application number
JP1150178A
Other languages
Japanese (ja)
Inventor
Shuji Ono
Takashi Oguro
Hideo Tsunoda
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP1150178A priority Critical patent/JPS54104425A/en
Publication of JPS54104425A publication Critical patent/JPS54104425A/en
Pending 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
    • C21D5/00—Heat treatments of cast-iron
    • C21D5/04—Heat treatments of cast-iron of white cast-iron

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 Treatment Of Articles (AREA)

Abstract

PURPOSE:To further raise the hardness of machine parts made of high Cr white cast iron and enhance the wearresistance thereof by subjecting the parts to usual hardening heat treatment, followed by cooling to a temp. below the martensite transformation end point. CONSTITUTION:Wear resistance parts for a rock crushing mill, etc. are made of high Cr white east iron contg. C; 2.4-3.6%, Si<1.0%, Mn; 0.5-1.5%, Cr; 14- 28%, Mo<3.0%, Ni<1.0% and Cu<1.2%. The parts are heated to 900-1050 deg.C, held, and air cooled to carry out hardening heat treatment, followed by cooling to a temp. below the martensite transformation end point of the cast iron, e.g. -60 deg.C. Thus, retained austenite in the cast iron is transformed into martensite to further enhance the hardness and wear resistance.
JP1150178A 1978-02-06 1978-02-06 Heat treating method for high chromium white cast iron Pending JPS54104425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1150178A JPS54104425A (en) 1978-02-06 1978-02-06 Heat treating method for high chromium white cast iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1150178A JPS54104425A (en) 1978-02-06 1978-02-06 Heat treating method for high chromium white cast iron

Publications (1)

Publication Number Publication Date
JPS54104425A true JPS54104425A (en) 1979-08-16

Family

ID=11779764

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1150178A Pending JPS54104425A (en) 1978-02-06 1978-02-06 Heat treating method for high chromium white cast iron

Country Status (1)

Country Link
JP (1) JPS54104425A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5858223A (en) * 1981-09-30 1983-04-06 Nippon Steel Corp Production of wear resistant material
US5183518A (en) * 1989-05-01 1993-02-02 Townley Foundry & Machine Co., Inc. Cryogenically super-hardened high-chromium white cast iron and method thereof
KR100260025B1 (en) * 1997-12-03 2000-06-15 노건일 The manufacturing method for high durable high chromium cast iron and same product
JP2010222658A (en) * 2009-03-24 2010-10-07 Kobe Steel Ltd Wear-resistant cast iron
CN102560232A (en) * 2012-03-06 2012-07-11 长沙学院 Hypoeutectic high-chromium cast iron for slurry pump blade and heat treatment process

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5858223A (en) * 1981-09-30 1983-04-06 Nippon Steel Corp Production of wear resistant material
US5183518A (en) * 1989-05-01 1993-02-02 Townley Foundry & Machine Co., Inc. Cryogenically super-hardened high-chromium white cast iron and method thereof
KR100260025B1 (en) * 1997-12-03 2000-06-15 노건일 The manufacturing method for high durable high chromium cast iron and same product
JP2010222658A (en) * 2009-03-24 2010-10-07 Kobe Steel Ltd Wear-resistant cast iron
CN102560232A (en) * 2012-03-06 2012-07-11 长沙学院 Hypoeutectic high-chromium cast iron for slurry pump blade and heat treatment process

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