Heattreatment

Heat treat thecasting by nomalizing, annealing, quench tempering, inductionquenching, case hardening and Nitriding per materialspec

Machining

Machine thecastings by CNC according to drawing spec.

Finalinspection

Test theparts’ mechanical properties by tension tester, impact tester,hardness tester, take NDT with X-ray, UT and M.P.T, final dimensioninspection are down by CMM, Measures & Gauges, etc.

Pack &Transport

After rustprevention, pack the parts into plywood or iron case fortransportation.

investment casting part lostwax casting

ObtainISO9001:2008QualitySystem Certified and CE/PED Certified byTUV

OEMparts according to customers' requirements:sample ordwg(drawing)

WaxInjection

Mix liquid waxslurry and solid wax together, inject wax into metal mould, fetchit out after cooling.

Wax MoldAssembly

Heat thestainless steel welding knife, weld the wax molds together on thegate stick according to technically designed. 

Dipping

The wax moldsare dipped into waterglass solution, with surface coated by thesolution.

Stuccoing

Stucco thedipped wax molds with quartz sand, then dip into indurationsolution containing ammonium chloride & magnesium chloride andhang to dry. The whole process repeats 6 times.

WaxRemoval

Put the thickcoated wax molds into wax removal gutter, keep heating. After lostall the wax only sand shell was left. 

Sand ShellPreheat

Heat the sandshell in order to strengthen the shell.

Castingpouring

Put the rawmaterial into the induction furnace and melt, add with chemicalcomposition per material spec. After the temperature of moltensteel rises to about 1600 degrees, take a pre-pouring chemicalanalysis, if approved then pour liquid steel into the sand shell byladle, make sure the shell is filled with liquid steel and thencool off, meanwhile take the testing bar for after-pouringanalysis. 

Sand ShellRemoval

Make thecasting free from sand by shaking.

Cutting

Oxyacetylenecut off the castings from gate stick. 

Grinding

Grind theingate and defected surface with grinding wh