JPS5729512A - Casting method for gray cast iron - Google Patents
Casting method for gray cast ironInfo
- Publication number
- JPS5729512A JPS5729512A JP9748481A JP9748481A JPS5729512A JP S5729512 A JPS5729512 A JP S5729512A JP 9748481 A JP9748481 A JP 9748481A JP 9748481 A JP9748481 A JP 9748481A JP S5729512 A JPS5729512 A JP S5729512A
- Authority
- JP
- Japan
- Prior art keywords
- gray cast
- cast iron
- inoculant
- molten metal
- melted
- 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 cast a gray cast iron having a uniform A-type flaky graphite structure by a method wherein a gray cast iron material is melted by heating it with a specified rate of temperature rise in the temperature range exceeding the A1 transformation point thereof, and after adding an inoculant, the molten metal is poured into a sand mold.
CONSTITUTION: A gray cast iron material of a chemical composition containing C, Si Mn, P and S in the ranges for ordinary gray cast irons is melted with a temperature rise of 10W<60C/min. in the temperature range exceeding the A1 transformation point thereof. After adding the inoculant to the molten metal and melting the inoculant, the molten metal is cast by pouring it into the sand mold. According to this method, even in the case of casting an article which varies in wall thickness and has a thin-walled part, eutectic graphite is not generated at all and a gray cast iron having a uniform and homogeneous structure of A-type flaky graphite can be obtained.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9748481A JPS5914086B2 (en) | 1981-06-25 | 1981-06-25 | Casting method of gray cast iron |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9748481A JPS5914086B2 (en) | 1981-06-25 | 1981-06-25 | Casting method of gray cast iron |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5334576A Division JPS52136824A (en) | 1976-05-12 | 1976-05-12 | Casting of gray cast iron |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5729512A true JPS5729512A (en) | 1982-02-17 |
JPS5914086B2 JPS5914086B2 (en) | 1984-04-03 |
Family
ID=14193541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9748481A Expired JPS5914086B2 (en) | 1981-06-25 | 1981-06-25 | Casting method of gray cast iron |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5914086B2 (en) |
-
1981
- 1981-06-25 JP JP9748481A patent/JPS5914086B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5914086B2 (en) | 1984-04-03 |
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