Mold and method for making variable hardness castings

Details Mold and method for making variable hardness castings Mold and method for making variable hardness castings

1990-11-13

1991-12-17

Seidel, Richard K.

Metal founding

Process

Shaping liquid metal against a forming surface

164352, 164355, B22D 1500

Patent

active

050727737

ABSTRACT:
A mold within which molten metal is sand cast, is provided with strategically located chill plates which shape and rapidly cool the molten metal at predetermined locations for hardening those locations relative to the hardness of the remainder of the casting. The mold is formed of a cope and drag frame type flask within which sand is compacted to form the sand cavity. Plates are arranged transversely of the casting cavity and are secured to portions of the flask frame for dissipating heat through the plates and out through the frame. The plates are fixed to portions of the flask and are arranged in opposing pairs which are aligned, coplanar, in abutting relationship. Each plate of each pair is provided with a notch, aligned with its opposite plate, for encircling the portion of the casting to be chill hardened. The pattern used for forming the cavity extends through the aligned notches and between the plates to form the composite sand and metal plate casting surface in the cavity.

REFERENCES:
patent: 638774 (1899-12-01), Thackray
patent: 843679 (1907-02-01), Johns

Affiliated with

Also associated with

Rating

Mold and method for making variable hardness castings does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mold and method for making variable hardness castings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mold and method for making variable hardness castings will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-831048