Delivery Time:30-90 days
Certification:PED/AD2000

Stainless Steel Precision Investment Casting for hand polished impeller used in food machinery.

Quick Detail:

Cast impeller of a food machinery pump, material is SS304 which is commonly used in food industry. Manufactured by China foundry supplier with lost wax process; Max size: 500X500X350mm; Max Weight: 80kg; Chemical composition tested by German spectrometer; ISO9001:2008 certificated;

Description:

Silica sol lost wax casting of Stainless steel with vibratory polishing and hand polishing.

We cast a wide array of materials: stainless steel, carbon steel, duplex alloys, nickel-based materials, and more with different sizes and configurations:

Stainless Steel (70%)	Carbon Steel	Alloy Steel
CF3M (AISI 316L), CF8M (AISI 316), CF8 (AISI 304),CD4MCu, CD4MCuN,ANC20,1.4408,1.4517, 1.4306, 303,  430, 420, 17-4PH, SCS1 and more	SCS16, SCS14, SCS13, 1.0619, WCB, S355JR, 1045 , LCC and more	ANC2,CLA12C,42CrMo,8Q,4140,6150 and more

Investment Casting (or) Lost Wax Method

The model of the part is made of wax from an aluminum die, then the wax patterns are welded onto the runner system which is also made of wax - it forms a pattern tree or called pattern assembly. Next, the pattern tree will be dipped into ceramic slurry of sand or stucco, with drying process between each coating until the shell is thick enough to hold the weight of melten metal which will be poured later. 

Then the Pattern tree with wax in it is going to a high pressure oven which melt the wax out. It forms a hollow in the shell. The shell is preheated before pouring to help fluidity of melton metal. A sand bed is always aside to hold the hot poured shell. 

In the following process, the shell is broken and removed, so the castings can be seen now. The castings are then cut off from the metal tree and shot blast/polished/machined to get better tolerance and surface. 

Applications:

Pumps

Valves

Pipe Fittings

Automotive

Marine and Oil

Machinery

Power & Energy

Other Mechanical Castings

Specifications:

Standards	ASTM,JIS,DIN,BS,MIL
Maximum Casting Size	500*500*350mm
Casting weight range	10g~80kg
Wall thickness	Min 1.5-2mm
Casting process type	silica sol lost wax casting,medium temperature
Machining	CNC machining, CNC lathe
Surface finish	electro polishing, satin, hand polished, pickled, zinc plating, vibratory polishing;
Tolerances	VDG P690
NDT test	Dye test, X ray test etc

Competitive Advantage:

By injecting wax into a permanent-molding die to form a pattern, investment casting get casting parts of good surface quality and became the solution for many complex parts that are required in large quantities.