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  • The Theoretical Metal Forming Of Casting Partss Is Often Referred To As Casting Parts
    May 04, 2018

    The theoretical metal forming of Casting Partss is often referred to as Casting Parts. The Casting Parts forming technique has a long history. As early as 5000 years ago, our ancestors were able to cast red copper and bronze products. Casting Parts is the most widely used metal liquid forming process. It is a method of pouring a liquid metal into a mold cavity and cooling and solidifying it to obtain a shaped blank or part.

    In the machine and equipment, the proportion of liquid molded parts is very large. In the machine tools, internal combustion engines, mining machinery, and heavy machinery, the liquid molded parts account for 70% to 90% of the total weight; in automobiles and tractors, it accounts for 50% to 70%; 40% to 70% of agricultural machinery. The liquid molding process can be used so widely because it has the following advantages:

    (1) A blank with a very complex inner shape can be produced. Such as various boxes, machine tools, cylinder blocks, cylinder heads and so on.

    (2) Process flexibility and wide adaptability. The size of the liquid molded part is almost unlimited, its weight can range from a few grams to several hundred tons, and its wall thickness can range from about 0.5 mm to about 1 m. In the industry, any metal material that can be dissolved into a liquid state can be used for liquid molding. For cast iron with poor plasticity, liquid forming is the only way to produce its blanks or parts.

    (3) The cost of liquid molded parts is low. Liquid molding can directly use waste parts and cuttings, and the equipment cost is low. At the same time, the liquid molded parts have a small machining allowance and save metal.

    However, the liquid metal forming process is numerous and difficult to control precisely, making the Casting Parts quality unstable. Compared with forgings of the same kind of material, the loose structure and coarse grains are caused by the liquid molding.

    Easy to produce shrinkage, shrinkage, porosity and other defects. Its mechanical properties are low. In addition, labor intensity is great and conditions are poor. With excellent mechanical and physical properties, it can have a variety of different strength, hardness, toughness with the overall performance, but also have one or more special properties, such as wear, high temperature and low temperature, corrosion resistance and so on.

    Casting Partss have a wide range of weights and sizes. The lightest weight is only a few grams, the heaviest is 400 tons, the thinnest is only 0.5 mm, the thickest is more than 1 meter, and the length can be a few millimeters to a dozen meters. Can meet the requirements of different industrial sectors.