Stainless steel Investment Casting 316L part of Explosion protective valve body from PED certificated foundry.
Quick Detail:
- Stainless steel valve body of explosion protective function(with Thin Neck), applied in Oil industry.
- Casting type: silica sol lost wax process;
- Foundry is PED/AD2000 certificated;
- ISO9001:2008 certificated;
- Chemical composition tested by spectrometer;
- NDT service available.
- Weight: 20KG;
Description:
Stainless steel, carbon steel, Nickel-based alloy steel investment castings with maximum size 500*500*350mm; ASTM,JIS,DIN,BS,MIL Standards.
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Stainless Steel (70%) |
Carbon Steel |
Alloy Steel |
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303, 430, 420, CF3M (AISI 316L), CF8M (AISI 316), CF8 (AISI 304),CD4MCu, CD4MCuN,ANC20,1.4408,1.4517, 1.4306, 17-4PH, SCS1 and more |
1020, 1040, 1045 ,,S355JR, SCS16, SCS14, SCS13, 1.0619, WCB, WCC, LCC and more |
ANC2,CLA12C,42CrMo,8Q,4140,6150 and more |
Investment Casting Process:
1. TOOL MAKING
A wax injection mold is designed and built to produce castings per customer specifications.
2. WAX PRODUCTION
A wax pattern is produced from the wax injection mold.
3. PATTERN ASSEMBLY
Wax patterns are attached to gating system by hot knife.
4. SHELL MAKING
The pattern assembly is dipped into a ceramic slurry, coated with a refractory material and dried. The process is repeated until the desired thickness and strength is achieved.
5. DEWAXING
Using regulated steam pressure, an autoclave melts and remove the wax from the ceramic shells.
6. SHELL PREHEAT
High temperature ovens cure and preheat the ceramic shells before pouring.
7. CASTING
Pre-heated Ceramic cavities are poured with the molten metal.
8. KNOCK OUT
The ceramic shell is removed by vibration knocking and the cluster is cleaned.
9. CUT OFF
Castings are cut off from the gating system.
10. MACHINING,SURFACE FINISH,AND INSPECTION
After cut off and gate removal, all secondary finishing operations are performed. Each casting is inspected according to customer specifications and requirements.
Applications:
Pumps
Valves
Pipe Fittings
Automotive
Marine and Oil
Machinery
Power & Energy
Other Mechanical Castings
Competitive Advantage:
Investment Casting is generally more expensive than it's associated metal casting methods of "die casting" or "sand casting", but can produce complicated shapes that require little rework or machining. Investment casting is used in many advanced technical industries such as Aerospace, Power Generation, Oil & Gas, Military & Defence, Medical, Commercial and Automotive.
Specifications:
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Casting process type |
silica sol lost wax casting |
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Maximum Casting Size |
500*500*350mm |
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Casting weight |
10g~80kg |
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Wall thickness |
1.5-2mm Min |
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Standards |
ASTM,JIS,DIN,BS,MIL |
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Machining |
CNC machining, CNC lathe |
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Surface finish types |
electro polishing, satin finish, hand polishing, pickled, zinc plating, vibration polishing; |
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Tolerances Standard |
VDG P690 |
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NDT test service |
Dye test, X ray test etc |
