Precision Casting For Small-batch Single-piece Production

- Jul 20, 2017 -

Precision casting, is a special casting. The parts obtained by this method do not need to be machined in general. such as investment casting, pressure casting.

Precision casting is the world leader in foundry industry, as the foundry industry in the high and new field of representatives, precision casting must play its exemplary role and lead role, but the precision casting to play these two functions of the premise is strong itself, so China's precision casting should be prioritized development, development needs the established policy and development goals.

Precision Casting is a casting method relative to the traditional casting process. Precision Casting It can obtain relatively accurate shape and high casting precision. The more common practice is to design the mould according to the product requirement first (can leave very small allowance or leave allowance), casting wax by casting method, obtaining the original wax mold, repeating coating and sand-blasting process on wax mold, Precision Casting hardening shell and drying, and dissolving the inner wax mold to remove wax, to obtain the cavity; baking shell for sufficient strength The metal material required for pouring, the clear sand after shelling to obtain the high precision finished product. According to the needs of the products or heat treatment and cold processing.

Precision casting, also known as investment casting, with other casting methods and parts forming methods compared to investment casting more advantages, Precision Casting which are the main characteristics of the advantages of which, as follows:

1. First of all, our castings are of high precision, the surface roughness is fine, and the dimension precision of castings can reach 4-6, the surface roughness can reach 0.4-3.2μm, can greatly reduce the casting margin, and can achieve no amount of manufacturing, reduce production costs.

2. Then its casting shape is complex, Precision Casting and it is difficult to use other methods of processing castings. The size of the castings is small to a few millimeters wide to thousands of millimeters, and the wall thickness is thinnest 0.5mm, the smallest hole is below 1.0mm, very exquisite.

3. The second is its alloy material is unrestricted: such as carbon steel, stainless steel, alloy steel, copper alloy, aluminum alloy and high-temperature alloy, Precision Casting titanium alloy and precious metal materials can be used in casting production. For difficult to forge, welding and cutting of alloy materials, is particularly suitable for the production of precision casting.

4. Finally, at the time of production, flexibility is very high, adaptable. It can be used in mass production, and also in small batches or even in single pieces.

The advantages of precision casting:

1. The scope of adaptation is wide, not limited by the size, thickness and complexity of the shape of the castings. Flexible mode of production

2. Can be used in a wide range of materials, Precision Casting can be used for a large number of scrap metal and renewable resources, compared with the forging power consumption.

3. Castings have a certain size precision, small processing allowance, saving working hours and metal materials

4. Low cost, good overall economic performance, energy, material consumption and lower cost

Wax Casting: Namely, lost wax casting method, the earliest appeared in the spring and Autumn Period, the entire manufacturing process is manual operation. Its process is to make the wax into the shape of the type, after the high temperature fine mud to the wax surface, and sprinkle the surface of the mud, repeated several times, so that the formation of a complete shell, after drying the wax to melt, forming a cavity, used to cast copper liquid (that is: Copper plus lead, zinc, tin and other metal elements of the solution). After the casting is finished, the shell, the grinding, the old, An exquisite antique bronze ware is displayed in front of you. Precision Casting Lost Wax precision Casting is called precision precision casting, is a small cutting or no cutting precision casting process, is a precision casting industry in an excellent technology, its application is very extensive. It is not only suitable for all kinds of precision casting of various kinds of alloys, but also produces castings of precision, surface quality than other precision casting methods, and even other precision casting methods difficult to cast the complex, high temperature, not easy to process castings, Can be used in precision casting casting.