12-04-2012, 03:25 AM
still working on those grip scales, here is a shot of a half a mold that I plan to pour today if the weather will allow me to with out trying to blow everything to Kansas like it did yesterday.
this is just one half of the mold, its made of just two ingredients fine white silica sand and sodium silicate which is hardened with CO2 gas.
I'll do the other half real quick in the morning before pouring.
This is a great way for making cores and such. you can make them pretty soft by only using like 3% total weight of Sodium Silicate or pretty hard with something in the range of 6%.
Only problem with making whats called strong cores is that the harder the sand is the harder it is to get out of something like a water jacket of cylinder casting.
this is just one half of the mold, its made of just two ingredients fine white silica sand and sodium silicate which is hardened with CO2 gas.
I'll do the other half real quick in the morning before pouring.
This is a great way for making cores and such. you can make them pretty soft by only using like 3% total weight of Sodium Silicate or pretty hard with something in the range of 6%.
Only problem with making whats called strong cores is that the harder the sand is the harder it is to get out of something like a water jacket of cylinder casting.
dallen, proud to be a member of MetalworkingFun Forum since Apr 2012.
If life seems normal, your not going fast enough!
If life seems normal, your not going fast enough!