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

Carbon steel 1.069 investment casting- bonnet of valve CNC machining capacity.

Quick Detail:

1. Carbon steel bonnet of a valve cast by lost wax Casting process;

2. Material: 1.0619;

3. Manufactured by Investment casting foundry in China;

5. Max size: 500X500X350mm;

6. Weight: 15kg;

7. Chemical composition tested by German spectrometer;

8. PED and ISO9001:2008 certificated;

9. NDT test can be operated.

Description:

1.0619(Carbon steel) lost wax castings for valve industries, weights up to 80kg;

We perform steel lost wax casting process in a wide range of alloys, please refer to below table for the most common material that Winnington cast:

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, WCC,S355JR, 1045 , LCC and more	ANC2,CLA12C,42CrMo,8Q,4140,6150 and more

Overview of Investment Casting (or) Lost Wax Method

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

Machinery

Power & Energy

Automotive

Marine and Oil

Other Mechanical Castings

Specifications:

Standards	ASTM,JIS,DIN,BS,MIL
Maximum Casting Size	500*500*350mm
Casting weight	10g~80kg
Wall thickness	1.5-2mm Minimum
Casting process type	silica sol lost wax casting method
Machining capability	CNC machining, CNC lathe
Surface finish	electro polishing, satin finish, hand polished, pickled, zinc plating, vibratory polishing;
Tolerances	VDG P690 Germany
Physical performance	Tensile test, Impact test, Hardness test
Chemical composition test	Spectrometer
NDT test	Dye test, X ray test etc

Competitive Advantage:

One-stop Services

Design Assistance    

We assist our customers with concepts, estimating manufacturing costs, manufacturing techniques and material considerations. We are able to participate in upgrading, redesigning, re-evaluating or modernizing existing products to increase performance and/or reduce manufacturing c