How to distinguish between good and bad Foundry Coating manufacturers
1. In terms of density, the density of Foundry Coating manufacturers should not be too small, otherwise the thickness of the coating layer formed on the surface of the sand mold and the sand core will not be enough for each brushing, and it will be difficult to play a protective role. So in general, the density of Foundry Coating manufacturers is better. However, the higher the density is, the better. If the density is too high, it will be more difficult to apply the paint, which will cause uneven surface of the coating and local accumulation, which will also have a bad impact on the quality of the casting. There is a relationship between the density and concentration of paint.
2. Looking at the suspension, the suspension is a relatively important work performance in Foundry Coating manufacturers. There are three general measurement methods: the relative height sedimentation method, the sedimentation instrument method, and the sedimentation rate method. Among them, the graduated cylinder method is a relatively simple method to use. method.
3. Thermal conductivity of coatings, thermal insulation and chilling properties of Foundry Coating manufacturers are more important for the selection of metallic coatings. Use chilling paint on the thick wall of the casting to accelerate the cooling of the casting, and use thermal insulation paint on the thin wall to cool the casting slowly.
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