JPS57161047A - Free cutting alloy cast iron - Google Patents
Free cutting alloy cast ironInfo
- 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
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63293140A (en) * | 1987-05-23 | 1988-11-30 | Kubota Ltd | Corrosion resistant cast iron material for piping material |
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)
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 |
-
1981
- 1981-03-31 JP JP4655981A patent/JPS6045267B2/en not_active Expired
Cited By (3)
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 cast iron material for piping material |
JPH0463142B2 (en) * | 1987-05-23 | 1992-10-08 | Kubota Kk |
Also Published As
Publication number | Publication date |
---|---|
JPS6045267B2 (en) | 1985-10-08 |
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