Hardening of inorganic foundry cores and molds

Details Hardening of inorganic foundry cores and molds Hardening of inorganic foundry cores and molds

2007-03-14

2009-11-17

Kerns, Kevin P (Department: 1793)

Metal founding

Process

Shaping a forming surface

C164S016000, C164S200000

Reexamination Certificate

active

07617861

ABSTRACT:
A foundry core or mold comprised of sand admixed with an inorganic binder is hardened by passing a treatment gas through a first heater and heating it therein to a relatively low temperature and, in a first hardening stage, passing the gas at the low temperature from the first heater through a second heater and heating it therein to a relatively high temperature and thereafter passing the gas at the high temperature from the second heater to and through a core box holding the core or mold to harden same. Thereafter in an after-treatment stage passing the gas at the low temperature from the first heater substantially directly to and through the core box holding the core or mold to after treat same.

REFERENCES:
patent: 4162238 (1979-07-01), Bergna
patent: 7036552 (2006-05-01), Bovens
patent: 03106072 (2003-12-01), None

Affiliated with

Also associated with

Rating

Hardening of inorganic foundry cores and molds does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hardening of inorganic foundry cores and molds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hardening of inorganic foundry cores and molds will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4070095