Resin coated sand for shell-molding process

Details Resin coated sand for shell-molding process Resin coated sand for shell-molding process

B - Operations, Transporting

22

C

117/48

B22C 1/22 (2006.01)

Patent

CA 1195556

ABSTRACT Resin coated sand for foundry shell molding operations is provided which eliminates the cracking of the molds at the time of pouring. In conventional phenolic bonded sand molds, the abrupt thermal expansion caused by the pouring of the molten metal into the mold causes the mold to crack. The resin coated sand, in this invention, is composed of foundry sand or aggregates coated with a phenolic resin which has incorporated therein, a polyethylene glycol of high molecular weight. This improved coated sand eliminates cracking at pouring and does not impair the shake-out property of the molds.

418993

Affiliated with

Also associated with

Rating

Resin coated sand for shell-molding process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Resin coated sand for shell-molding process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resin coated sand for shell-molding process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1264757