Misrun and Investment castings
Misrun and Investment castings
(OP)
Any Foundry engineers with experience of investment casting misrun reduction.Using Superalloy 713 and any experiences of reducing misruns with this alloy would be appreciated.
Thanks
Thanks





RE: Misrun and Investment castings
Low temperature (mold and metal), slow pour, inadequate gating, low mold permeability, gas evolution, low metal pressure (head).
Mold ceramic should be compatible with alloy 713.
RE: Misrun and Investment castings
I had poured Inconnel 713 in air melt furnace at 1900°F mold temp and apprx. 2725°F metal temp and I never had any misrun or cold shut. The reason we did this because the Ti is 0.7 or 0.8 max. You may need air vent to help the air trap and this also increase the metal velocity.
Sonny Tran