Method for making foundry moulds and cores

Details Method for making foundry moulds and cores Method for making foundry moulds and cores

1980-02-19

1982-04-27

Baldwin, Robert D.

Metal founding

Process

Shaping a forming surface

164520, B22C 912

Patent

active

043265782

ABSTRACT:
A method for making foundry moulds and cores where after preparation of the moulds and cores having a sand composition of a low strength up to 0.03 MPa, a cooling medium is introduced into the mould cavity, preferably liquid nitrogen, in an amount to provide hardening of only the surface layer of a required sufficient to reproduce the shape of the mould cavity.

REFERENCES:
patent: 3512571 (1970-05-01), Phelps
patent: 4150704 (1979-04-01), Hoult
The "EFFSET" Process of Freeze Moulding, Economic Commission For Europe, Seminar Nov. 28-Dec. 2, 1977.
EFFSET-The Freeze Binding of Sand Molds, Leaflet of BOC Company.
22 Nations Attend UN Foundry Seminar, In Foundry M & T, Feb. 1978, pp. 46-50.

Affiliated with

Also associated with

Rating

Method for making foundry moulds and cores does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for making foundry moulds and cores, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making foundry moulds and cores will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2193930