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Research investment shell cracking

Open 01binary opened this issue 9 years ago • 4 comments

01binary avatar Dec 29 '16 20:12 01binary

"Make sure to melt the wax out completely at around 400 degrees then slowly bring it up to about 1000 - 1100 to completely bake the mold. "

01binary avatar Jan 01 '17 00:01 01binary

Cracked at 80 F in a pre-heated oven (starting around 75 F).

01binary avatar Jan 16 '17 23:01 01binary

http://scholarsmine.mst.edu/cgi/viewcontent.cgi?article=6002&context=masters_theses

01binary avatar Jan 17 '17 18:01 01binary

http://webcache.googleusercontent.com/search?q=cache:hjov11owyfYJ:tomwade.me/tw/machinist/machinable-wax.pdf+&cd=2&hl=en&ct=clnk&gl=us

INVESTMENT CASTING Machinable Wax can be used for Investment Casting applications only if it can be flash fired out of the molds at a temperature of 1800 degrees F. The reason the high temperature is required is because the wax expands so much when going from a solid to a liquid that it will crack the ceramic shell unless it goes into that high temperature so quickly that the material will just disintegrate before this change occurs.

01binary avatar Jan 17 '17 18:01 01binary