How to clean the machine tool castings?

  Cleaning of machine tool castings. The cleaning of the bed body is essentially the maintenance of the castings. The purpose of the cleaning is to improve the surface quality of the castings.

  The influence of casting smelting and pouring molten iron on the surface quality of castings has two main aspects: one is the content of impurities in water, especially the content of iron oxide, which is easy to produce slag or slag pores on the surface of castings; the second is the gas content in molten iron. High gas content tends to cause the casting to create pores on the surface or under the skin. The main measures we have taken are to increase the temperature of molten iron and establish a perfect cupola detection system to ensure that the cupola is in a normal state.

  "High temperature standing, low temperature casting" is the control criterion for casting to reduce the porosity, shrinkage and surface sanding defects of the casting. Improve the level of casting technology and improve the surface quality of exported machine tool castings

  Reasonably determine the parting surface to minimize the parting surface to reduce the casting surface defects such as flash and surface irregularities formed by the parting surface; improve the integrity of the core, reduce the number of joints between the cores, and reduce the number of cores The gap between the core and the mold is used to improve the surface roughness and contour definition of large castings.

  Process parameters have a large impact on casting dimensional accuracy and contour definition. After many process tests, each process parameter is carefully selected.

  Extensively apply the latest casting process results to improve the level of casting process to reduce casting defects, especially casting surface defects.