How to avoid damage to cast iron flat plates

The surface quality of cast iron flat plates is mainly affected by two aspects: first, the content of impurities in the molten iron, especially the content of iron oxide, which is prone to generate slag inclusions or slag pores on the surface of the casting; The second is the gas content in molten iron, which is high and can easily cause porosity on the surface or under the skin of the casting. The main measures we have taken are to increase the temperature of the molten iron, establish a comprehensive cupola detection system, and ensure that the cupola is in normal condition& Ldquo; High temperature standing, low temperature pouring; It is a control criterion for pouring to reduce porosity, shrinkage, and surface sand sticking defects in castings. Improve the level of casting technology, export the surface quality of machine tool castings, and set them on various templates to facilitate the improvement of labor productivity