Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1989-10-05
1991-07-02
Rowan, Kurt
Metal founding
Process
Shaping liquid metal against a forming surface
164 34, B22D 1900, B22C 902
Patent
active
050278789
ABSTRACT:
A method for impregnating an iron product with a hard wear-resistant material surface layer comprises providing a destructible pattern of the desired iron product and applying a paste which comprises a powder of the wear-resistant material and a binder comprising a solution of polyvinyl alcohol onto a portion of the surface of the pattern. The pattern is then coated with a refractory layer by applying a suitable aqueous slurry. A mold is made using the pattern and then an iron melt is cast into the mold thereby forming an iron product having a cast in-place wear-resistant material surface layer. In other embodiments, the method includes the formation of a cavity in the pattern where the binder and particles are introduced into the cavity. In addition, a sheet comprising the binder and particles can be formed, which sheet is then attached to the pattern.
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"Cast In-Place Hard Surfacing"--Physical Metallurgy Research Laboratories, by K. G. Davis and J. G. Magny.
DeRoo Daniel L.
Jones David P.
Maberry John J.
Revankar Gopal S.
Deere & Company
Pelto Rex E.
Rowan Kurt
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