For cast steel parts manufacturers, there is no small matter in the production of cast steel parts. Every step and every operation must be paid attention to, because this is a meticulous job. During the casting process, the manufacturer also attaches great importance to the use of paint. Why? Does it have a great impact on castings?
Manufacturers with many years of casting experience said without hesitation, "The impact on castings is relatively large, and the quality of the paint is also very important. "If the casting coating has a small density, the thickness of the coating layer formed by the manufacturer on the sand shape and the surface of the sand core when painting is not enough, and it cannot protect it. The large coating density will lead to difficulty in painting, resulting in uneven surface and local accumulation problems. Therefore, when casting steel parts manufacturers adjust the coating density, they need to control the density, otherwise the quality of the casting will be adversely affected. The permeability of
casting coating refers to the ability of the paint to penetrate into the pores of the sand shape. The large amount of penetration increases the adhesion of the paint to the sand shape, which not only processed the sand shape, but also improves the Sand type resists sand and reduces casting defects, etc. The breathability, thermal conductivity, fire resistance and coating resistance of the castings also affect the quality of the castings. A good casting coating sand coating must have good breathability, which can breathe and dissipate heat in time, withstand high temperatures and anti-sweep strength, etc., because after the coating is applied on the sand type, it needs to be transported, dried, etc., and cannot be damaged. In this way, when casting, the casting manufacturer will not have defects such as sand holes due to sand falling, etc. when producing castings.
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