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How to do silica sol precision casting

Edit:Xiangyang Liqiang Machinery Co., Ltd.UpDate:2019-06-10

     ;  Silver Sol Precision Casting is primarily used as a binder for precision cast coatings for surface coatings and reinforcement coatings. The small particle silica sol can be used in precision casting instead of ethyl acrylate, which not only reduces costs but also improves working conditions. For thin shell precision casting, the shell has high strength, high dimensional accuracy, good casting finish, better shape than water glass, and is cheaper than silicate. For large silica sol cast castings, castings with high surface finish requirements and castings that do not require or have a small number of castings are suitable. The use of a silica sol as a mold for the high temperature coating provides the coating with good heat resistance and wear resistance, as well as reducing the loss of molten metal to the mold at high temperatures and promoting demolding.

       Silica Sol Precision Casting Mainly used as an adhesive for precision casting coatings. It can be used as a surface coating and a reinforced coating for the shell.

      1. Profile design and manufacturing : Design and process profiles according to profile drawings, steel or other materials. 2. Investment molding in which a paste molding material is injected into a molded part to form an investment mold. 3. Module Assembly: A number of logic ends are welded to a wax rod (ie, a casting system) made of a wax material to form a module. 4. Shell manufacturing: The surface of the watch module is coated with a refractory coated cup, which is sprinkled with a layer of refractory material (usually quartz sand or bauxite, etc.) and then placed in a hardener to harden the coating. Repeat several times to form a hard shell of 8-10 mm on the surface of the module. 5. Investment loss (dewaxing): Put the finished module into a hot water tank or other hot container, and melt all the molds to form a hollow shell. 6. Shell roasting: The shell is placed in a heating furnace for baking. 7. Burn: Pour molten metal into the shell. 8.Solid Sol Precision Casting Shelling and cleaning of the manufacturing process.


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