1.4404 Stainless steel Precision Investment Casting china foundry serving valve industry.
 
Quick Detail:
 

• Stainless steel bonnet applied in valve industry.
• Material: 1.4404
• Casting method: silica sol lost wax casting process;
• Investment casting Foundry China which is PED/AD2000 certificated;
• ISO9001:2008 certificated;
• German spectrometer inspection for Chemical composition;
• NDT available.
• Weight: 4.82 KG;

 
 
Description:
 
Stainless steel 1.4404 precision investment castings with maximum size 500*500*350mm and maxium weight up to 80KG.

 
 
Investment Casting Process:
The investment casting process, also known as lost wax casting, is used to fabricate near-net-shaped metal parts from almost any alloy. Although its history lies to a great extent in the art production, its most recently use has been on the production of components that have complicated shapes and metals that are often hard to machine or to fabricate. Procedures: 
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:
 

Competitive Advantage:

 
Investment Casting is generally cost higher than other 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:

Tags: precision investment casting, lost wax investment casting, lost wax casting