Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1991-10-22
1994-03-22
Bradley, Paula A.
Metal founding
Process
Shaping liquid metal against a forming surface
164 98, B22D 1908
Patent
active
052955290
ABSTRACT:
Disclosed is a method and a mold for forming a zinc collar on an insulator metal cap. The zinc collar forming mold comprises a setting section for setting the metal cap in position on the mold and an upwardly opening cavity defined around the periphery of the setting section. For molding a zinc collar, the metal cap is immersed in a molten zinc, and the metal cap is set upright on the setting section of the mold with the lower half thereof being still in the molten state. Subsequently, a molten zinc is poured from the upper opening of the mold, and upon solidification of the molten zinc, a zinc collar can be formed around the external circumference of the metal cap.
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Imakoma Takashi
Kawamoto Iwaji
Kondo Seiichi
Matsuo Hiroto
Bradley Paula A.
NGK Insulators Ltd.
Pelto Rex E.
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