All we know that casting parts are produced by making casting mould into sand mode, so the casting mould plays an important role in the sand casting.
 
Casting mould is always regarded as the mother of casting, and we can see from here how important the casting mould to sand casting is. After all, all sand castings are gained from the sand mould which is built by the casting mould, and there will be no sand casting products if there is no casting mould. In fact, the quality of casting mould decides the quality of casting parts. Next let's get to know the importance of casting mould in the process of sand casting.
 
First, casting mould decides the size precision. All casting parts are made based on the casting mould, and the dimension error of the mould will reflect on the casting parts completely, and especially for those complicated casting parts, we have to use several casting moulds, and in this way accumulated error will influence the size precision of sand castings seriously. Therefore, it is very important for make a precise casting mould, and then we can get casting parts with precise sizes.
 
Second, casting mould also affects the surface smoothness a lot. the surface smoothness is very important to sand casting products, so the casting mould with good surface smoothness can not only improve mould-lifting ability but also can reduce core waste to increase the production efficiency, and then we can get a smooth sand core to produce smooth casting parts.
 
Third, the quality of Anti-Seismic Foundation Parts decides whether the casting parts have defects. Some defects of casting parts are just caused by the bad quality of casting mould, for example, if the casting mould is uneven on the surface, the mould-lifting ability will be bad, and in this way the surface of sand mould casting will be damaged, and even sand holes will appear on the surface. Besides, if the grouting system is made or installed casually, the graves will flow away from the processing requirements, and then defects like air holes and shrinkage porosity will be caused.
 
Since the casting mould is so important to sand mould casting, we should emphasize the quality of the casting mould a lot. Of course, the processing technic and processing equipment are also important, and they will be reflected completely on the casting mould.
 
Only casting mould in high quality can produce Wheel with teech in high quality and good precision.