Make die. Inject wax by Injection press into the die and get wax pattern, is a copy of finish product.
This wax pattern is assemble with wax sprue and make wax assembled tree.
For ceramic coating on this tree, assembled tree deep into liquid slurry.
By doing above process 5 to 6 times, we can get ceramic shell cluster.
By doing above process 5 to 6 times, we can get ceramic shell cluster. .
After total drying of ceramic shell cluster, remove inside wax by heating is called dewaxing.It creat cavity inside shell.
After dewaxing shell put in shell beaking furnace and preheat it.
Same time prepare liquid metal and pour metal in pracheated shell.
After cooling of metal, shell put on vibrating knock-off and remove ceramic coating.
Cutting casting from tree.
Then grind metal feeder of casting, finish it and total ceramic coating remove by blasting and chemical process done on inside & outside surface.
After complete finishing of casting, it goes for visual and dimentional inspection.