JPS57109562A - Production of as-cast crank shaft - Google Patents
Production of as-cast crank shaftInfo
- Publication number
- JPS57109562A JPS57109562A JP18506780A JP18506780A JPS57109562A JP S57109562 A JPS57109562 A JP S57109562A JP 18506780 A JP18506780 A JP 18506780A JP 18506780 A JP18506780 A JP 18506780A JP S57109562 A JPS57109562 A JP S57109562A
- Authority
- JP
- Japan
- Prior art keywords
- completion
- pearlite
- solidification
- cooling
- until
- 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
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE: To increase the quantity of pearlite and improve mechanical strength by performing knock-out and forced cooling at the earliest possible time since the solidification of molten ductile cast iron composition until the completion of its A1 transformation.
CONSTITUTION: Molten metal having ductile cast iron composition contg. spheroidal graphite is charged into molds having cavities of the shape of an automotive crank shaft and is solidified, after which the molds are knocked out and the casting is cooled. In this case, the knock-out is carried out at the aearliest possible time since the completion of the solidification until the completion of the A1 tranformation during the cooling process since the completion of the solidification until the completion of the A1 transformation after charging the molten metal added with a pearlite stabilizing element in particular or not added with sand element, thence quick cooling by air cooling or the like is performed with the rough casting whereby the base structure is made pearlite.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18506780A JPS57109562A (en) | 1980-12-27 | 1980-12-27 | Production of as-cast crank shaft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18506780A JPS57109562A (en) | 1980-12-27 | 1980-12-27 | Production of as-cast crank shaft |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57109562A true JPS57109562A (en) | 1982-07-08 |
Family
ID=16164220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18506780A Pending JPS57109562A (en) | 1980-12-27 | 1980-12-27 | Production of as-cast crank shaft |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57109562A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60215737A (en) * | 1984-04-11 | 1985-10-29 | Japanese National Railways<Jnr> | Brake disk material for vehicle |
JPH03112159U (en) * | 1990-03-02 | 1991-11-15 | ||
JP2018204082A (en) * | 2017-06-08 | 2018-12-27 | 青梅鋳造 株式会社 | Spheroidal graphite cast iron, and manufacturing method therefor |
-
1980
- 1980-12-27 JP JP18506780A patent/JPS57109562A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60215737A (en) * | 1984-04-11 | 1985-10-29 | Japanese National Railways<Jnr> | Brake disk material for vehicle |
JPH0358826B2 (en) * | 1984-04-11 | 1991-09-06 | Tetsudo Sogo Gijutsu Kenkyusho | |
JPH03112159U (en) * | 1990-03-02 | 1991-11-15 | ||
JP2018204082A (en) * | 2017-06-08 | 2018-12-27 | 青梅鋳造 株式会社 | Spheroidal graphite cast iron, and manufacturing method therefor |
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