Process for washing a casting core

Details Process for washing a casting core Process for washing a casting core

1989-10-10

1990-08-28

Seidel, Richard K.

Metal founding

Process

Shaping a forming surface

164523, 164526, B22C 300, B22C 910

Patent

active

049517317

ABSTRACT:
The disclosure concerns a process of producing expendable coated cores for castings comprising mixing sand with a resinous binder, polymerizing the binder, and then washing the resulting bound sand core with an organic solvent to remove unpolymerized residuals from the surface of the core before applying a coating to the core.

REFERENCES:
patent: 3983071 (1976-09-01), Jurisch
patent: 4529028 (1985-07-01), Dybala et al.
patent: 4867225 (1989-09-01), Downing

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