Precision Investment Casting made of SS304 with hand polishing used on Food machinery pump .

Quick Detail:

1. SS304 Precision Cast Propeller of a food machinery pump .
2. Manufactured by silica sol lost wax process;
3. Max size: 500X500X350mm;
4. Weight up to: 80kg;
5. PED certificated;
6. ISO9001:2008 certificated;

Description:

Silica sol lost wax casting part made 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:

Overview of 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

Gas and Oil

Machinery

Power & Energy

Various mechanical components

Specifications:

Competitive Advantage:

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

   Wax pattern