Technology for casting silver product through cire perdue

The invention relates to a technology for casting a silver product through cire perdue. The technology mainly comprises the following steps that a product and a wax injection aluminum mold are designed, then the aluminum mold is machined through CNC numerical control machining equipment, the wax is injected into the aluminum mold through a wax injection machine to form a wax board, and then wax board trimming (wax board welding), tree-shaped wax rod building and wax board inserting (weighing), gypsum barrel filling, gypsum vacuuming, gypsum natural solidification, gypsum baking, metal melting,casting, demoulding and gypsum washing, washing and acid washing and cleaning, degating, product polishing, product surface post-treating are carried out. According to the technology, the uncertain factors of manual mud carving plate taking, rubber film manual pressing, controlling the wall thickness and the weight of a product through manual wax shoveling are omitted, so that the appearance of the product is consistent,