Preparation method for special binding agent for sand wheel manufacturing

The invention discloses a preparation method for a special binding agent for sand wheel manufacturing, and relates to the field of sand wheel molds. The binding agent consists of clay, glass powder and talcum powder. The raw materials for preparing the binding agent are adjusted, and a material with high binding performance, high flexibility and low fire resistance is added, so that the aims of reducing the fire resistance of the binding agent and increasing the use speed are fulfilled. The special binding agent is high in practicability and wide in use prospect; the sintering cost is reduced, the product flexibility is enhanced, and the product intensity is improved; the highest use speed of a product is increased from original 60m/s to 70m/s; the product is high in performance, and the rejection rate is reduced.