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Process for solving the problem of casting porosity
The die-casting pores are widely found in castings. How to solve the hole defects of castings has always been a headache for many manufacturers. Because
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Shanghai Keboer Castings Group Co., Ltd. is a professional manufacturer of gray iron and ductile iron castings for bed, machine tools, air pressure pump bodies, casings, Construction machinery casting, agricultural machinery casting and other machinery industries, and has passed the quality management system ISO 9001:2015
High stability cast iron products, OEM/ODM metal casting manufacturers
Customized metal casting products, our long-term and stable supply of gray iron and ductile iron parts, using furan resin sand process to produce large castings (200Kg-10000Kg), machine tool castings, construction machinery castings, reducer castings, and other large castings and so on. The use of coated sand process to produce batches of small and medium-sized castings (1Kg-200Kg) precision castings, pump body castings, valve castings, flange castings, shell castings and so on.
We use high-hardness gray iron to make molds, and use high-precision machining centers to process molds, which can ensure that the accuracy error of the product is 0.5MM, and the mold can be used more than 100,000 times. Suitable for making products with high precision and small weight.
The molding machine is used to spray 200 mesh sand into the mold to make the sand shell for casting, which needs to be kept warm for 7-12 hours after casting.
Molds are usually made of metal or wood to ensure their strength and stability. A special resin coating is applied to the inside of the mold, and the resin sand is poured into the mold using a sand making machine and compacted to form a solid sand mold. The liquid metal or alloy is poured into the sand mold and kept warm for 7-48 hours, and the molded casting can be removed.
The mold price is relatively cheap, suitable for the production of large castings and precision requirements are not strict products.
We use high-hardness gray iron to make molds, and use high-precision machining centers to process molds, which can ensure that the accuracy error of the product is 0.5MM, and the mold can be used more than 100,000 times. Suitable for making products with high precision and small weight.
The molding machine is used to spray 200 mesh sand into the mold to make the sand shell for casting, which needs to be kept warm for 7-12 hours after casting.
Advantages: The rough castings have high precision, small machining allowance, and can be mass-produced quickly.
Disadvantage: The molds are expensive and are not suitable for large-scale castings or small-batch castings.
Spectral detection
Number of tests: Once
Srorage period: One year
Tensile test
Material : QT400-15
Result : QT400-18.5
Size inspection
Products : Machine base.
Results : qualified.
Flaw detection
Products : Couplings.
Results : No stomata.
The die-casting pores are widely found in castings. How to solve the hole defects of castings has always been a headache for many manufacturers. Because
The main application areas of ductile castings are electronic and electrical engineering, light industry, bearing industry, automotive parts industry and other parts processing, because these
For large castings, the most basic point of view is to solve the “thermal balance” of casting shrinkage defects. In the solidification process of large
Shanghai keboer Casting Group Co., LTD