Mold for molding glass having a nickel and graphite surface coat

Details Mold for molding glass having a nickel and graphite surface coat Mold for molding glass having a nickel and graphite surface coat

1994-04-15

1995-07-04

Jones, W. Gary

Glass manufacturing

Apparatus made of special material

Metal-nonmetal composite

6537415, 2491141, 249115, C03B 900, C03B 4000, B28B 736, B29C 3356

Patent

active

054296528

ABSTRACT:
Water-soluble high molecules are made present as a dispersing agent in a dispersion coating bath of a solution of a water-soluble nickel salt containing graphite dispersed therein, and a mold for molding a glass is immersed therein in a manner that the mold serves as the cathode and the nickel metal serves as the anode in order to effect the plating while suppressing nickel or a nickel-based alloy in the film from growing in a vertical direction or in the direction of the plane thereof. On the inner surfaces of the mold is formed a film which comprises a matrix of nickel or the nickel-based alloy which as a whole has a flake-like form that is continuous and exists in an open cellular form and a graphite granule phase which is held in the open cells and is outwardly exposed on the surface. Since nickel is suppressed from growing like granules, the film exhibits excellent lubricating property, heat resistance, parting property, abrasion resistance and durability in combination, and is free from defects inherent in the prior art.

REFERENCES:
patent: 3349831 (1967-10-01), Moore et al.
patent: 3745096 (1973-07-01), Fournier
patent: 3792986 (1974-02-01), Scott et al.

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