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Metals Shell casting process from Dandong Iron Casting Group
Product name：metals Shell casting.Cast iron casting,sand casting,precision casting Product process：With a case of heat hardening sand (phenolic resin coated sand) covered in heated to 180 ~ 28 Shell casting casting 0 ℃ metal template, make it hardened into thin shells (shell thickness is generally 6 to 12 mm), and then heat curing the shell, to achieve sufficient strength and stiffness, so the upper and lower two-piece clamp with a clamp Tight or resin bonded, the sand box can be used to form a cast, casting cast metal template heating temperature is generally about 300 ℃, the sand used for the resin sand, that is phenolic resin binder resin sand. Metals shell casting Features： The use of resin sand to make shell or shell molds significantly reduces the amount of molding sand used. The obtained castings have clear contours, smooth surfaces and precise dimensions. Machining is possible without machining or with only a small amount of machining. Therefore, shell casting is particularly suitable for the production of large volume, high dimensional accuracy requirements, wall thin and complex shapes of all kinds of alloy castings. But shell casting resin used expensive, the template must be precision machining, high cost, when casting will produce irritating odor, which to some extent limits the wide application of this method. Resin sand shell core with ordinary sand or metal interaction with the manufacture of various castings.