Wax Mold Making: Key Process in Precision Casting

1、The main steps in making a wax mold:

With these steps, we will get a wax model that is close to the shape of the product.

2、Factors that affect the quality of wax parts are:

   Wax mold material: The goodness of the wax mold material directly affects the surface finish, thermal stability and shrinkage of the wax mold, which in turn affects the surface quality and size of the final product;

  Wax injection temperature: too low a temperature may cause insufficient filling, too high a temperature may lead to excessive flow and deformation of the wax mold;

  Ambient temperature: The ambient temperature has an influence on the curing process of the wax molds. Too low or too high a temperature may lead to uneven shrinkage or deformation of the wax molds.

 shot wax time: shot wax time is too short, easy to lead to the wax mold internal bubble is not completely excluded, time is too long easy to lead to excessive curing wax mold;

 Wax injection pressure: too low a pressure can cause insufficient filling of the wax mold, too high a pressure can lead to deformation or damage of the wax mold.

 Ningbo Pingheng has 12 technicians, including 3 technicians to manage the waxing process, all have many years of experience in this field, for each type of product, we have to verify and solidify the process parameters, to ensure the stability of product quality, this is the automobile exhaust gas treatment system parts, this type of parts, generally, our waxing temperature is controlled at 52 ± 1 ℃, the ambient temperature is controlled at 24 ± 2 ℃, the waxing time is 15S ~ 20S, the waxing pressure is 20 ~ 30PSi. Waxing time is 15S~20S, waxing pressure is 20~30PSi;

  3、 Acceptance of wax parts

   Ningbo Pingheng adheres to the quality concept: not to receive, not to manufacture, not to flow out of the "three noes" principle, so for the acceptance of wax molds to carry out strict control, and formulated the failure mode card for employees to refer to learn, in order to prevent the flow of substandard products;