JPS5693851A - Cast iron having different graphite structure at each section and production thereof - Google Patents
Cast iron having different graphite structure at each section and production thereofInfo
- Publication number
- JPS5693851A JPS5693851A JP17237979A JP17237979A JPS5693851A JP S5693851 A JPS5693851 A JP S5693851A JP 17237979 A JP17237979 A JP 17237979A JP 17237979 A JP17237979 A JP 17237979A JP S5693851 A JPS5693851 A JP S5693851A
- Authority
- JP
- Japan
- Prior art keywords
- graphite structure
- cavity
- agent
- boss
- poured
- 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
Links
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
PURPOSE: To provide graphite with different structure at various sections by a method wherein a spherodizing agent is placed in the cavity of a mold for cast products and molten gray iron is poured in it.
CONSTITUTION: For example, the disk brake rotor of an automobile has a boss (a) and breaking parts (b). It is desirable for the boss to have spheroidal graphite structure having strength and rigidity, for the breaks (b) to have flake graphite structure, and for the boundary section (c) to have ascicular graphite structure. To achieve this requirement, spheroidizing agent grains 5 are placed at the position corresponding to the boundary (c) of the product cavity 3, and molten metal is poured from the sprue. Then, the molten metal contacts the agent 5 in the cavity 3, is sequentially reacted, and forms spheroidal graphite structure on the inner part of the mold to be filled thereafter. In this manner, graphite structure is adjusted corresponding to functions which each part must perform.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17237979A JPS5693851A (en) | 1979-12-27 | 1979-12-27 | Cast iron having different graphite structure at each section and production thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17237979A JPS5693851A (en) | 1979-12-27 | 1979-12-27 | Cast iron having different graphite structure at each section and production thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5693851A true JPS5693851A (en) | 1981-07-29 |
Family
ID=15940809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17237979A Pending JPS5693851A (en) | 1979-12-27 | 1979-12-27 | Cast iron having different graphite structure at each section and production thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5693851A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3709062A1 (en) * | 1986-03-20 | 1987-10-01 | Hitachi Metals Ltd | BRAKE ELEMENT FOR MOTOR VEHICLE BRAKES AND METHOD FOR THE PRODUCTION THEREOF |
US8726974B2 (en) | 2010-01-29 | 2014-05-20 | Caterpillar Inc. | In-situ graphite shape control for iron castings |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5550965A (en) * | 1978-10-09 | 1980-04-14 | Mitsubishi Heavy Ind Ltd | Production of spherical graphite castings |
-
1979
- 1979-12-27 JP JP17237979A patent/JPS5693851A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5550965A (en) * | 1978-10-09 | 1980-04-14 | Mitsubishi Heavy Ind Ltd | Production of spherical graphite castings |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3709062A1 (en) * | 1986-03-20 | 1987-10-01 | Hitachi Metals Ltd | BRAKE ELEMENT FOR MOTOR VEHICLE BRAKES AND METHOD FOR THE PRODUCTION THEREOF |
US4807728A (en) * | 1986-03-20 | 1989-02-28 | Hitachi Metals, Ltd. | Brake member and method of manufacturing same |
DE3709062C2 (en) * | 1986-03-20 | 1993-01-28 | Hitachi Metals, Ltd., Tokio/Tokyo, Jp | |
US8726974B2 (en) | 2010-01-29 | 2014-05-20 | Caterpillar Inc. | In-situ graphite shape control for iron castings |
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