Coating for molds and expendable cores

Details Coating for molds and expendable cores Coating for molds and expendable cores

1983-05-09

1985-07-16

Smith, John D.

Metal founding

Means to shape metallic material

United particle type shaping surface

164138, 164 14, 427134, 106 3827, 523139, B22C 300, B22C 910

Patent

active

045290288

ABSTRACT:
A resin-bonded sand core for high-pressure die casting methods having a first refractory coating, such as of silica, with an inorganic binding agent of colloidal silica and a clay such as kaolin, and a second or top coating of a refractory material containing zircon and an organic binding agent, which combination of these two different coatings enables the bonded sand core to have high pressure and temperature resistance, good washout resistance, freedom from surface penetration, and good shake-out properties.

REFERENCES:
patent: 2426987 (1947-09-01), Dean
patent: 3216078 (1965-11-01), Zrimsek et al.
patent: 3436235 (1969-04-01), Baer, Jr. et al.
patent: 3666531 (1972-05-01), Cocks et al.
patent: 4001468 (1977-01-01), Skubon et al.
patent: 4096293 (1978-06-01), Skubon et al.
patent: 4298051 (1981-11-01), Page
patent: 4319925 (1982-03-01), Brown

Affiliated with

Also associated with

Rating

Coating for molds and expendable 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 Coating for molds and expendable cores, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coating for molds and expendable cores will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1731374