Water glass precision casting is a commonly used raw material in the industry, and it is also a common process for casting precision castings in major precision casting factories and enterprises. The following is an introduction to the principle and detailed steps of water glass precision casting industry: melting the glass and forming it through molds. Generally, after the mold is manufactured, the glass melt is injected into the mold or glass chips are stacked in the pre made mold, Put the molds together into the furnace for melting, and the molds with glass domains are annealed and formed. The wax loss casting method uses soil to make the original mold, flip the silicone rubber negative mold, and fix it in the silicone rubber mold with gypsum. Pour wax liquid into the mold to produce a wax like "prototype", called a "wax mold". After cooling, take out the wax mold, and carry out precision repair. One refractory gypsum embedded wax mold is heated and dewaxed, In high-temperature resistant materials, a prototype shape is formed by filling glass blocks into the mold and heating them in the kiln. The glass blocks gradually melt and fuse until the cavity is completely filled before annealing.
Cut the glass block or flat glass into a certain shape according to the mold, especially the flat glass covering the deep mold. This is to consider the changes caused by the softening and bending of the glass, and leave more room. Place the raw materials smoothly on the supporting edge of the grinding tool and send them into the heating furnace for uniform heating. If the product has a large curvature and the mold is deep, The time for baking and heating can be completed in two stages, which is related to the size and thickness of the product for annealing treatment. These are some simple manufacturing methods commonly used by precision casting enterprises in the process of casting some precision casting products. There are other casting processes in the precision casting industry, and of course, the choice of process should be determined based on the precision casting parts.
