Precision Investment Casting, buy CF8 Precision Investment Casting lost wax process with polishing finish on China Suppliers Mobile

Product Details

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

Precision Investment Casting made of CF8 with lost wax process and polishing finish.

Quick Detail:

CF8 Precision investment casting . Manufactured by silica sol lost wax process; Wall thickness 1.5-2mm minimum; Weight range: 10g - 80kg; PED/AD2000 certificated; ISO9001:2008 certificated;

Description:

Precision investment casting part made of Stainless steel CF8 with hand polishing surface.

We can cast a wide array of materials such as: stainless steel, carbon steel, duplex alloys, nickel-based materials, and more:

Stainless Steel (70%)

Carbon Steel

Alloy Steel

420, 17-4PH, CF3M (AISI 316L), CF8M (AISI 316), CF8 (AISI 304),CD4MCu, CD4MCuN,ANC20,1.4408,1.4517, 1.4306, 303, 430, SCS1

and more

1040, SCS16, SCS14, SCS13, 1.0619, WCB, S355JR, 1045 , LCC

and more

6150, ANC2,CLA12C,42CrMo,8Q,4140

and more

Description of precision investment casting:

1. Mold making. A wax mould is made according to the CAD system.

2. Wax Model-making. Molten wax is poured into the mould and formed a model that exactly same shape as the cast part.

3. Wax assembly. The wax patterns are connected to the runner system by hot knife according to certain rules. When this finish, a pattern tree is ready.

4. Slurry. The wax pattern tree is dipped into a slurry of silica, then into a sand-like stucco, or dry crystalline silica of a controlled grain size. The slurry and grit combination is called ceramic shell mould material, although it is not literally made of ceramic. This shell is allowed to dry, and the process is repeated until at least a half-inch coating covers the entire piece. The bigger the piece, the thicker the shell needs to be.

5. Burnout. The ceramic shell-coated piece is placed cup-down in an autoclave, who hardens the silica coatings into a shell, and the wax melts and runs out. This process makes hollow in the shell where formerly occupied by the wax.

6. Pouring. The shell is preheated in the clave to harden the patches and remove all traces of moisture, then placed cup-upwards onto a sand bed. Metal is melted in a furnace, then poured carefully into the shell. The shell has to be hot because otherwise the temperature difference would shatter it. The filled shells are then allowed to cool.

7. Release. The shell is hammered or sand-blasted away, releasing the rough casting. The gates, which are also created in metal, are cut off.

8. Machining and finishing. The casting is shot blasted and then machined to required tolerance if necessary. Further finish like plating or polishing can also be operated according to customer needs.

Applications:

Pumps & Valves

Pipe Fittings

Automotive

Marine

Gas and Oil

Machinery

Power & Energy

Various mechanical components

Specifications:

Standards	ASTM,JIS,DIN,BS,MIL
Maximum Casting Size	500500350mm
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 polishing, pickled, zinc plating, vibratory polishing;
Tolerances	German VDG P690
NDT	Dye test, X ray test etc

Competitive Advantage:

Winnington offers one-stop services from inhouse wax die making, casting to in house secondary machining, finishing.