Mechanical parts Alloy steel precision casting using ceramic shell process.

Quick Detail:

1. Alloy steel precision cast part of a textile machinery component;
2. Material: SCM415 (15CrMo) alloy steel;
3. Weight: 0.06kg; Cast weight range: 10g~80KG;
4. PED and ISO9001:2008 certificated foundry;
5. Chemical composition test operated by German spectrometer;
6. NDT test can be operated.
7. Surface finish service is provided according to cusotmer's specification.

Description:

Alloy steel Precision investment cast with lost wax process for textile weaving industry; Minimum wall thickness 1.5mm-2mm; Tolerance according to VDG P690;

Winnington cast: stainless steel, carbon steel, duplex alloys, nickel-based materials, and more with different sizes and complexity level:

OVERVIEW OF PRECISION INVESTMENT CASTING PROCESS

Precision Investment casting, which is also called lost wax casting, is regarded as a casting process to build near-net-shaped metal parts from almost any alloy(especially for high melton temperature alloys). The most common use of investment casting in more recent history and has been the production preference of components requiring complex, especially thin-wall castings.

The investment casting process begins with making a wax pattern with the same geometrical shape as the cast part. Patterns are normally made of investment casting wax that is injected into a metal wax injection die. Once a wax pattern is formed, it is assembled with other wax components to form a metal delivery system , called the gate and runner system. The entire wax assembly is then dipped in a ceramic slurry, covered with a sand stucco, and allowed to dry. The dipping and stuccoing process is repeated until a shell of 6~8 mm is acheived(It depends according to the weight of the cast part).

Once the ceramic get dried, the entire cluster assembly is placed in a steaming autoclave to remove most of the wax. After autoclaving, the remaining amount of wax that soaked into the ceramic shell is burned out in a furnace. At this point, all of the residual pattern and gating material is removed, and the ceramic mold remains. The mold is then preheated to a specific temperature and filled with molten metal, creating the metal casting. Once the casting has cooled sufficiently, the mold shell is chipped away from the casting. Next, the gates and runners are cut from the casting, and final postprocessing (shot blasting, machining, polishing) is done to finish the casting.

Applications:

Competitive Advantage:

One-stop Services of Winnington Casting

From wax die making, wax injection, pouring, secondary machining, welding, heat treatment, polishing, to surface finishing etc.

 Investment casting has for some time been perceived as a comparatively expensive process. But when compared to alternative processes which require extra welding or machining, an investment cast component can often dramatically reduce overall part production costs since it is made close to net shape. And, investment casting can be formed on almost any alloy.