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Slag hole defect of gray cast iron

There are many factors that cause slag hole defects, such as raw material composition of gray cast iron, slag removal during smelting, parameter control during pouring, composition control of sand mold and sand core, etc. The combination of these factors magnifies the possibility of the occurrence of casting defects...

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Grey cast iron

Cast iron generally refers to a multi-component iron carbon alloy with a C content of more than 2.0% (wt%, the same below). Generally, the C content of industrial cast iron is 2.5-3.5%. C mostly exists in the form of graphite in gray cast iron, and a small amount exists...

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Inoculation treatment of grey cast iron

1. Characteristics of inoculation treatment So far, there is no consensus on the action mechanism of inoculation treatment at home and abroad, but the inoculation treatment of cast iron has the following commonalities: (1) Furnace front and flow. Inoculation treatment is generally carried out in the furnace Adding inoculant...

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Properties and characteristics of gray cast iron

1. Mechanical properties (1) Tensile strength: the tensile strength of gray cast iron is generally 100 ~ 350 MPa, which can meet the strength requirements of many construction machinery parts. (2) Compressive strength: gray cast iron has high compressive strength, which is 3 ~ 4 times of its tensile...

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ZHY Casting Grey Cast Iron products – machine tool castings

At present, China’s high-grade CNC machine tools needed in important fields such as automobile, aviation, railway and national defense depend on imports for a long time. The poor machining accuracy and precision retention of machine tools is one of the important reasons why they can’t resist imports. Cast iron...

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Chemical composition of grey cast iron

The chemical composition of gray cast iron consists of two parts: one is the basic composition, that is, five elements: C, Si, Mn, P and S; Second, a small amount of alloy elements such as Cu, Cr, Mo, Ni, Sb, Sn, etc. are added as required. Among the five...

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Development of Grey Cast Iron Automotive Exhaust Manifold

With the development of the automobile industry, the exhaust temperature of the engine is increasing continuously, which leads to the continuous development of the exhaust manifold materials.Material of exhaust manifold for automobiles in developed countries in Europe and America has experienced the development process of stainless steel, including common...

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