Lost Wax Casting, Precision Casting, Alloy Investment Casting

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After treatment process

Picture: First step of sand washing

Sand Washing

Castings are sent to sand washing room to do the first time of sand washing and remove the most remaining ceramic sand after shell removal process.

Picture: Cutting

Cutting

To use of the cutting machine to cut apart the required casting and die head.

Picture: Grind

Grind

Grinding the gate and making it flat after cutting castings depends on client’s request or demand.

Picture: Weld Repair
Picture: Fix

Weld Repair & Fix

Grinding the gate and making it flat after cutting castings depends on client’s request or demand.

Picture: Heat Treatment

Heat Treatment

According to customer’s demand and request, different heat treatment can be chosen such as solid solution, normalization, annealing, precipitation and hardening and tempering.

Picture: Sand blasting

Sand blasting & Pickling

Castings do final washing and ensure the corner of internal and external are no residual ceramic sand.

Pickling is called passivation treatment can chemically remove free iron and the external of the metal grain of the surface to become a protective layer against rust especially for stainless steel.

Picture: Straighten/Punch
Picture: Straighten and check the dimension

Straighten

Different types of casting may be deformed by external or natural factors and then the use of hydraulic machines and customized mold and fixture to reform casting within the standard size.