Method for the production of a core sand and/or molding sand...

Details Method for the production of a core sand and/or molding sand... Method for the production of a core sand and/or molding sand...

2007-10-16

2007-10-16

Kerns, Kevin P. (Department: 1725)

Metal founding

Process

Shaping a forming surface

C164S520000

Reexamination Certificate

active

10560350

ABSTRACT:
A method for producing a core sand and/or molding sand for casting purposes mixes a basic granular mineral molding material such as silica sand with an additive based on an organic or inorganic component, a binding agent being optionally added. The additive is coarsely ground prior to the mixing process, more than 50 percent by weight of the grains having a minimum size of approximately 0.05 mm.

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patent: 1 444 280 (1976-07-01), None

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