Valve parts casting

Valve parts casting as too detailed point is:
Pressure wax (shot wax wax) --- repair wax wax Unit ---- ---- Group Tree (wax module tree) --- Shell (first dip pulp, pour sand, then dip pulp, finally formwork dried) --- dewaxing (steam dewaxing) ------- formwork Roasting - resistance analysis - casting (pouring molten steel in the mold shell) ---- --- shock shelling casting and casting rod mill gate singulation ---- --- First inspection (blank check) --- Abrator ----- ----- machined polished finished unit --- --- warehousing

Casting production processes in general is so generally can be divided into pressure wax, Shell, casting, post processing, testing

Pressure waxes include (pressure wax, wax repair, group tree)
--- Pressure wax machine wax produced by press molding wax
--- Repair wax on wax mold is corrected
--- Group tree will be set tree wax mold

Shell include (hang sand, linked to pulp, dried)
After processing includes (amendments, shot blasting, sandblasting, pickling,)
Pouring include (roasting, also called resistance fight spectrum analysis, casting, shell shock, cut the gate, mill gate)
After processing includes (sand blasting, shot blasting, correction, pickling)
Inspection includes (wax inspection, initial inspection, the inspection, product inspection