Process of precision casting. The alloys produced by precision casting include carbon steel, alloy steel, heat-resistant alloy, stainless steel, precision alloy, permanent magnetic alloy, bearing alloy, copper alloy, aluminum alloy, titanium alloy and nodular cast iron.

1. The casting scale accuracy is high, and the general linear tolerance is 1%, the viewpoint tolerance is: 1/2 degree, and the surface finish can reach Ra 1.6-3.2, which can save material and machining costs.

2, can produce messy parts, or multiple parts cast into one, save the combination or welding work.

3. Able to cast exquisite text or LOGO image on the product appearance to advance the product image.

4. The casting material has a wide range of properties, including heat resistance, wear resistance, corrosion resistance, and the hardness of the material can reach hrc15-60 to meet the requirements of various working conditions.

5, casting production batch. The amount of flexible, from a small amount to a large number of production can be, high efficiency, good repeatability; Mould cost is low, product development initial stage invests little

An overview of the

Precision casting is also called the "lost wax casting", but the fact in the wax models general coated with several layers of refractory material, after being its hardening drab, will go in molten wax models, made of shell, again after roasting, but left behind line pouring, for one of the casting, because the castings of high dimension precision and rough finish, so it is also called "revestment precision casting"

The shape of wax mold castings is single and messy, the minimum diameter of castable holes on the castings can reach 0.5mm, and the minimum wall thickness of the castings is 0.3mm. In the production can be some of the source of several parts from the combination of parts, through the process of changing the structure of the parts, planning into a whole part and directly from the precision casting casting, to save processing time and metal material consumption, so that the parts structure double justice.

The weight of the investment castings is mostly a few tenths of an ox (that is, tens of grams to a few kilograms). It is more difficult to produce heavy castings by precision casting, but the weight of large investment castings has reached 800 ox at present.