Claims
- 1. A method of storing and maintaining the temperature of a nodular cast iron melt comprising:
- providing a heatable furnace having an inner chamber adapted to receive a cast iron melt,
- at least partially filling said inner chamber with a nodular castiron melt which has been treated with magnesium,
- maintaining the temperature of said melt within a predetermined range of casting temperature values,
- closing said furnace chamber with a sealed pressure-tight cover, and
- filling the space in said inner chamber above said melt with an inert gas and pressurizing said gas to an extent sufficient to prevent disintegration of the magnesium in said melt.
- 2. The process of claim 1 wherein said melt has 0.03 to 0.07 percent magnesium content by weight.
- 3. The process of claim 1 wherein said inert gas is nitrogen.
- 4. The process of claim 1 wherein said inert gas is argon.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3507648 |
Mar 1985 |
DEX |
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Parent Case Info
This is a division of application Ser. No. 836,095, now U.S. Pat. No. 4,638,980, filed Mar. 4, 1986.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3295960 |
Parlee |
Jan 1967 |
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Divisions (1)
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Number |
Date |
Country |
Parent |
836095 |
Mar 1986 |
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