Method of eliminating porosity defects within aluminum cylinder

Details Method of eliminating porosity defects within aluminum cylinder Method of eliminating porosity defects within aluminum cylinder

1992-01-16

1993-01-19

Seidel, Richard K.

Metal founding

Process

Shaping liquid metal against a forming surface

164 691, 164 98, B22D 1900

Patent

active

051799944

ABSTRACT:
A method for eliminating porosity defects in aluminum cylinder blocks (22) having cast-in-place metallurgically bonded cylinder liners (12) includes coating the liners (12) with a low melting point molten metal such as zinc and thereafter removing a virtually entire outer layer of pure Zn, which would otherwise melt during casting and invade the block metal, leaving behind shrinkage defects in the resultant cylinder block (22).

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