Duplex Alloy Steel Investment Casting , Impeller Precision Lost Wax Process

Quick Detail:

1.   Duplex alloy steel casting part of an impeller cast by lost wax process;

2.   Material: Duplex CD4MCu alloy steel;

3.   Max size: 500x500X350mm;

4.   Weight: 0.8kg;

5.   Chemical composition tested by German spectrometer;

6.   PED and ISO9001:2008 certificated;

7.   NDT test can be operated.

Winnington Casting has experience pouring a wide variety of stainless steel alloy casts. The most common alloys we have poured are listed below.  

Description:

All kinds of stainless steel, carbon steel and most of alloy steel casting needs, Winnington Investment Casting can help you out.

Process of investment casting:

• Wax die making: Our wax tooling is made of Aluminum which is easy for machining and fast for cooling, at the same time, light for handling.
• Wax injection: Filling the entire mould with molten wax, and let it cool, until a desired wax pattern is shaped and harden.
• Assemble the wax patterns: The wax patterns are welded to a runner system by a heated metal tool according to a certain pattern cluster(tree) design.
• Investment: The ceramic mould, known as the investment, is produced by three repeating steps: coating, stuccoing, and hardening. The first step involves dipping the cluster into a slurry of fine refractory material and then letting any excess drain off, so a uniform surface is produced. This fine material is used first to give a smooth surface finish and reproduce fine details. In the second step, the cluster is stuccoed with a coarse ceramic particle, by dipping it into a fluidised barrel, placing it in a rainfall-sander. Finally, the coating is allowed to harden.
• Dewax: The investment is then allowed to completely dry, which can take 16 to 48 hours. It is then turned upside-down and placed in a autoclave to melt out and/or vaporize the wax.
• Burnout & preheating: The mold is then subjected to a burnout, which heats the mold to remove any moisture and residual wax, and t