JPS57161047A - Free cutting alloy cast iron - Google Patents

Free cutting alloy cast iron

Info

Publication number
JPS57161047A
JPS57161047A JP4655981A JP4655981A JPS57161047A JP S57161047 A JPS57161047 A JP S57161047A JP 4655981 A JP4655981 A JP 4655981A JP 4655981 A JP4655981 A JP 4655981A JP S57161047 A JPS57161047 A JP S57161047A
Authority
JP
Japan
Prior art keywords
graphite
cast iron
alloy cast
free cutting
cutting alloy
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
JP4655981A
Other languages
Japanese (ja)
Other versions
JPS6045267B2 (en
Inventor
Takeki Kobayashi
Norimitsu Kitajima
Kazuo Kinoshita
Katsuhiro Ichikawa
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.)
Ebara Corp
Original Assignee
Ebara 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 Ebara Corp filed Critical Ebara Corp
Priority to JP4655981A priority Critical patent/JPS6045267B2/en
Publication of JPS57161047A publication Critical patent/JPS57161047A/en
Publication of JPS6045267B2 publication Critical patent/JPS6045267B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

PURPOSE: To obtain free cutting alloy cast iron with superior seawater resistance, machinability and castability by adding specified amounts of Ni and Ti or Ca to cast iron contg. Cr.
CONSTITUTION: This alloy cast iron contains 2.5W4.0% C, 1.8W4.0% Si, 0.1W 1.2% Mn, 0.7W2.5% Cr, 1.0W4.2% Ni and 0.03W1.0% Ti and/or <0.1% Ca, and the graphite structure contains 1 or 2 kinds of graphite selected from flaky graphite, semiflaky graphite and eutectic graphite in spite of the contained Cr. By adding Cr, the seawater resistance is enhanced. By adding Ni, the cast iron is inhibited from being excessively converted into white pig iron owing to the added Cr, the thickness sensitivity is reduced, and a homogeneous pearlite matrix structure is formed. By adding Ti and/or Ca, the graphite structure is improved to prevent the coarsening of the graphite, and the superior machinability is maintained.
COPYRIGHT: (C)1982,JPO&Japio
JP4655981A 1981-03-31 1981-03-31 free-cutting alloy cast iron Expired JPS6045267B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4655981A JPS6045267B2 (en) 1981-03-31 1981-03-31 free-cutting alloy cast iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4655981A JPS6045267B2 (en) 1981-03-31 1981-03-31 free-cutting alloy cast iron

Publications (2)

Publication Number Publication Date
JPS57161047A true JPS57161047A (en) 1982-10-04
JPS6045267B2 JPS6045267B2 (en) 1985-10-08

Family

ID=12750677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4655981A Expired JPS6045267B2 (en) 1981-03-31 1981-03-31 free-cutting alloy cast iron

Country Status (1)

Country Link
JP (1) JPS6045267B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63293140A (en) * 1987-05-23 1988-11-30 Kubota Ltd Corrosion-resistant spheroidal graphite cast iron material for piping materials
US4861395A (en) * 1984-06-22 1989-08-29 Ebara Corporation Method of using machine parts made of austenitic cast iron having resistance to stress corrosion cracking in contact with salt water

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6331881A (en) * 1986-07-25 1988-02-10 Nippon Denso Co Ltd Bumper-to-bumper parking controller for vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4861395A (en) * 1984-06-22 1989-08-29 Ebara Corporation Method of using machine parts made of austenitic cast iron having resistance to stress corrosion cracking in contact with salt water
JPS63293140A (en) * 1987-05-23 1988-11-30 Kubota Ltd Corrosion-resistant spheroidal graphite cast iron material for piping materials

Also Published As

Publication number Publication date
JPS6045267B2 (en) 1985-10-08

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