Lost foam pour box and lost foam casting process

Details Lost foam pour box and lost foam casting process Lost foam pour box and lost foam casting process

1987-10-13

1989-05-09

Seidel, Richard K.

Metal founding

Process

Shaping a forming surface

164 61, 164255, 164410, 164237, B22C 904

Patent

active

048280062

ABSTRACT:
An improved lost foam pour box and lost foam casting process wherein the improvements are positioning one or more fluid permeable separators, such as well points, within the contained volume of the box so that the gasses generated in the lost foam casting process can be vented to the exterior of the box by passing through the separators. By positioning the separators within the box, a larger box can be used and more castings can be made within with reduced burn-in and porosity defects in the resulting castings.

REFERENCES:
patent: 2636230 (1953-04-01), Morton
patent: 3557867 (1971-01-01), Krzyzanowski
patent: 3861447 (1975-01-01), Hondo
patent: 4318437 (1982-03-01), Kemp

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