Lost foam casting process for wear-resistant accessories of machine tool

The invention discloses a lost foam casting process for machine tool wear-resistant accessories, and relates to the field of metal casting. The suspending agent prepared by the invention can prevent a solid refractory material from being separated out in a coating; the molecular weight of the intercalation polymer in the suspending agent is increased after cross-linking, the molecular weight of the intercalation polymer is increased after cross-linking, the high molecular weight polymer can effectively expand the interlayer spacing of bentonite, the surface of bentonite existing in a particle powder state becomes oleophylic and hydrophobic after intercalation, the surface activity is overcome, agglomeration is prevented, and the stability of the suspending agent is improved. A solid refractory material can be effectively prevented from being separated out from the coating; according to the lost foam casting process for the wear-resistant accessories of the machine tool, the hardness range of a casting is HB19