Composite mould (core) making technology and device thereof

Application Number: 00108083
Application Date: 2000.06.13
Publication Number: 1275455
Publication Date: 2000.12.06
Priority Information:
International: B22C9/00;B22C15/24
Applicant(s) Name: Qin Shengyi
Inventor(s) Name: Qin Shengyi
Patent Agency Code: 11250
Patent Agent: zhang jie
Abstract The present invention relates to a composite core-making process and its equipment, and is characterized by that a fine-particle face-layer mixed material and a back-layer mixed material whose fineness is coarser than that of face-layer mixed material are injected into internal cavity of core box, and the face-layer mixed material is attached on the surface and hardened together with back-layer mixed material so as to form a complete core. as compared with existent technology, the said invention can raise the core-making speed and accuracy, and can raise the accuracy of casting.