Dongguan Precision CastingThe technological process. The types of alloys that can be produced by precision casting include carbon steel, alloy steel, heat-resistant alloys, stainless steel, precision alloys, permanent magnet alloys, bearing alloys, copper alloys, aluminum alloys, titanium alloys, and ductile iron.

1. Castings have high dimensional accuracy, the general linear tolerance is 1%, the viewpoint tolerance is: ±1/2 degrees, and the surface finish can reach Ra 1.6-3.2, which can save material and machining costs.

2. Parts with messy shapes can be produced, or multiple parts can be cast into one body, eliminating the need for assembly or welding.

3. Be able to cast exquisite text or LOGO image on the appearance of the product to advance the product image.

4.Dongguan Precision CastingThe material has a wide range of properties, such as heat resistance, wear resistance, and corrosion resistance, and the material hardness can reach HRC15-60 to meet the needs of various working conditions.

5. Casting production batch. The quantity is flexible, and it can be produced from small to large batches, with high efficiency and good repeatability; mold costs are low, and the initial investment in product development is small.

Overview

Precision casting is also called"Lost wax castingGG quot;, however, when the wax mold is roughly coated with several layers of refractory material, after its hardening is monotonous, the wax mold in between is melted to form a shell, and then after roasting, it is left behind for pouring, and a part of the casting is obtained. This kind of system is also called&"Investment Precision Casting GG" due to the higher dimensional accuracy and rough finish of the obtained castings.

The shape of the wax mold castings is messy. The smallest diameter of the holes that can be cast on the castings can reach 0.5mm, and the minimum wall thickness of the castings is 0.3mm. In production, some parts can be assembled from several parts from the original source. After the process, the structure of the parts is changed, and the parts are planned to be integral parts and directly cast by precision casting. This saves the processing time and the waste of metal materials to make the parts The structure is doubly fair.

The weight of investment castings is mostly a few dozens of cattle (that is, tens of grams to several kilograms). It is more troublesome to produce heavy castings by precision casting, but the weight of large investment castings has reached 800 cattle.