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Do you know the eight common metals? ——Cast iron

December 24, 2019

Latest company news about Do you know the eight common metals? ——Cast iron

As an unimportant part of our daily living environment, sewer covers are rarely noticed. The reason why cast iron has such a large and wide range of uses is mainly because of its excellent fluidity and its easy pouring into various complex forms. Cast iron is actually the name for a mixture of many elements, including carbon, silicon and iron. The higher the carbon content is, the better the flow characteristics will be. Carbon is found here in the form of graphite and iron carbide.

 

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The existence of graphite in cast iron makes the sewer cover have excellent wear resistance. Rust usually only appears on the top layer, so it is usually polished. In spite of this, there are also special measures to prevent rusting during the pouring process, that is, adding a layer of asphalt coating on the surface of the casting, and the asphalt penetrates into the fine holes on the surface of the cast iron, so as to play a role of rust prevention. The traditional process of producing sand mold castable materials is now used by many designers in other newer and more interesting fields.

 

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Material characteristics: excellent fluidity, low cost, good wear resistance, low solidification shrinkage, very brittle, high compression strength, good machinability.

 

Typical use: cast iron has been used for hundreds of years, involving construction, bridges, engineering components, home furnishings, Kitchenware and other fields.

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