Metal founding – Process – Shaping liquid metal against a forming surface
Reexamination Certificate
2005-08-02
2005-08-02
Johnson, Jonathan (Department: 1725)
Metal founding
Process
Shaping liquid metal against a forming surface
C164S267000, C164S067100, C164S259000
Reexamination Certificate
active
06923242
ABSTRACT:
An aluminum casting method includes the step of applying in advance a mold release agent including magnesium to a mold surface. Thereafter, a nitrogen gas is injected into a cavity to cause reaction between the magnesium in the surface of the mold release agent and the nitrogen gas, thereby forming magnesium nitride. Since the nitrogen gas reacts only with the magnesium exposed in the surface of the mold release agent, the forming time of the magnesium nitride is reduced and also the amount of nitrogen gas used is reduced.
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Echigo Takaharu
Kato Takashi
Kawasaki Ken'ichi
Matsuura Satoshi
Nakao Yasuhiro
Honda Giken Kogyo Kabushiki Kaisha
Johnson Jonathan
Lin I.-H.
Rankin, Hill Porter & Clark LLP
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