Precision Lost Wax Investment Casting

Precision Lost Wax Investment Casting
Product Details

We now supply all forms of lost wax investment casting parts.

Rich OEM service experience.

Our products has been sold to more than 30 countries, we are very familiar with the whole markets, expecially for Europe and North America markets.

Our Commitment & Responsiblity

1.Competitive Price

2.Strict Quality Control

3.Quick Response To Any Inquires,Complaint,Technical Problem,etc

4.Timely Delivery 

5.Small Quantity Acceptable

Shell making process

1) Degreasing and degreasing of modules

In the case of a wax-based molding material, in order to improve the ability of the coating to wet the surface of the module, the oil on the surface of the module needs to be removed.

2) Apply coating and sanding on the module

Before coating the coating, the coating should be evenly mixed, the precipitation of the refractory material in the coating barrel should be reduced as much as possible, and the viscosity or specific gravity of the coating should be adjusted so that the coating can well fill and wet the coating. The module is immersed in the paint and shakes left and right, so that the paint can wet the mold well and evenly cover the surface of the module. After the paint is applied, it can be sanded.

3) Shell drying and hardening

After each layer of the shell is coated, it is dried and hardened, so that the binder in the coating is transformed from the sol to the gel and the gel, and the refractory is joined together.

4) melt-fuse in the self-shell

After the shell is completely hardened, the module needs to be melted from the shell. Since the module is usually made of a wax-based molding material, this process is also called dewaxing. Depending on the heating method, there are many, dewaxing methods, and the hot water method and the same pressure steam method are used more.

5) roasting shell

If it is required to be cast (filled sand), before the roasting, the mold after the demoulding is buried in the sand in the box, and then calcined. If the shell has high temperature strength and does not need to be cast, the demoulded shell can be directly sent into the furnace for roasting. When roasting, the furnace temperature is gradually increased, and the shell is heated to 800-1000 ° C for a period of time to be cast.