Metal founding – Process – Shaping a forming surface
Reexamination Certificate
2005-04-19
2005-04-19
Lin, Kuang Y. (Department: 1725)
Metal founding
Process
Shaping a forming surface
C164S035000, C164S036000, C164S045000
Reexamination Certificate
active
06880618
ABSTRACT:
Method of making a subcutaneous melt flow-channel in the surface of a fugitive foam pattern used in lost-foam casting process. After a refractory skin has been formed on the surface of a foam pattern, a strip of the skin is treated so as to cause the foam underlying the strip to recede from the strip and leave a groove in its stead. Suitable treatments include (1) heating the strip, or (2) applying a foam solvent thereto that soaks through the skin. In each case, the treatment is such as to cause the foam underlying the treated strip to soften and recede from the strip.
REFERENCES:
patent: 4651799 (1987-03-01), Chandley
patent: 6189598 (2001-02-01), Chandley et al.
patent: 2-263537 (1990-10-01), None
“A metal accelerator method used in the lost foam casting process”Research Disclosure #445057,May, 2001.
Goettsch David Douglas
Powell, Jr. Bob Ross
LandOfFree
Making subcutaneous flow-channels in foam patterns does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Making subcutaneous flow-channels in foam patterns, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Making subcutaneous flow-channels in foam patterns will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3391289