A casting method for producing a casting from a thin shell mold. The shell casting was invented by the German J. Cronin in 1943, first applied in Germany in 1944, and adopted in other countries after 1947.
Shell casting
Shell mold casting
A casting method for producing a casting from a thin shell mold. The shell casting was invented by the German J. Cronin in 1943, first applied in Germany in 1944, and adopted in other countries after 1947.
The process is covered with a heat-hardened molding sand on a heated metal formwork to harden it into a thin shell. The thickness of the thin shell is generally 6 to 12 mm, which has sufficient strength and rigidity, so the upper and lower shells are used. After the clamp is clamped or adhered with resin, the mold can be formed without the sand box. The heating temperature of the casting metal mold is generally about 300 °C, and the sand used is resin sand, that is, resin sand with phenolic resin as binder. . Similarly, the core can be made into a thin shell core by the above method to manufacture a thin shell mold commonly used tipping method. A thin shell core is commonly used for blowing.
Features and Uses The use of resin sand to make thin shell molds or shell cores can significantly reduce the amount of sand used. The resulting castings have a clear outline, a smooth surface and precise dimensions, and can be machined or processed in small quantities. Therefore, shell casting is particularly suitable for the production of castings of various alloys with large batch sizes, high dimensional accuracy requirements, thin walls and complex shapes. However, the resin used for shell casting is expensive, the formwork must be precision machined, the cost is high, and a pungent odor is generated during casting, which limits the wide application of this method to some extent. The resin sand shell core can be used in combination with ordinary sand or metal to manufacture various castings.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
HIDEEP Provides A Wide Rang Of Distinctive floor drains With Unique Design To Meet Customers Individual Requirements.
Shell casting
Shell mold casting
A casting method for producing a casting from a thin shell mold. The shell casting was invented by the German J. Cronin in 1943, first applied in Germany in 1944, and adopted in other countries after 1947.
The process is covered with a heat-hardened molding sand on a heated metal formwork to harden it into a thin shell. The thickness of the thin shell is generally 6 to 12 mm, which has sufficient strength and rigidity, so the upper and lower shells are used. After the clamp is clamped or adhered with resin, the mold can be formed without the sand box. The heating temperature of the casting metal mold is generally about 300 °C, and the sand used is resin sand, that is, resin sand with phenolic resin as binder. . Similarly, the core can be made into a thin shell core by the above method to manufacture a thin shell mold commonly used tipping method. A thin shell core is commonly used for blowing.
Features and Uses The use of resin sand to make thin shell molds or shell cores can significantly reduce the amount of sand used. The resulting castings have a clear outline, a smooth surface and precise dimensions, and can be machined or processed in small quantities. Therefore, shell casting is particularly suitable for the production of castings of various alloys with large batch sizes, high dimensional accuracy requirements, thin walls and complex shapes. However, the resin used for shell casting is expensive, the formwork must be precision machined, the cost is high, and a pungent odor is generated during casting, which limits the wide application of this method to some extent. The resin sand shell core can be used in combination with ordinary sand or metal to manufacture various castings.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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