No-magnetic casting iron and application thereof

A cast iron, casting technology, applied in the field of non-magnetic cast iron

Inactive Publication Date: 2003-10-22
陈培山
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Embodiment Construction

[0005] The non-magnetic cast iron of the invention can be produced in foundry electric furnaces and flat furnaces, and can be formed by casting. Its best formula is: Mn11%, C4.1%, Si3%, Cu2.5%, and the rest is iron. The above raw materials are melted to 1400°C to 1500°C for casting. Quenching treatment is carried out when the casting is condensed to a temperature ranging from 700°C to 1150°C. After treatment, a non-magnetic cast iron structure can be formed.

[0006] The non-magnetic cast iron of the present invention has a magnetic permeability μ≤1.1, and it can be processed into any shape required by users to be an electrical equipment accessory with anti-magnetic and magnetic-isolation properties. For example: enclosed busbars support insulator lower accessories, insulator flanges in transmission lines, transformer accessories, etc. (these are just some of them), which are widely used in power equipment.

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Abstract

The non-magnetic cast iron is a product having no defined form, its production belongs to the field of alloy addition of cast iron and quenching process, and its application belongs to the field of antimagnetic magnetism-isolating component in the power equipment. It can be substituted for stainless steel, copper and aluminium alloy components which are used for resisting magnetism and isolating magnetism in power equipment. Its production method is characterized by utilizing two measures of alloy addition and quenching process to obtain and retain austenic base body so as to atain non-magnetic effect. The magnetic conductibility of said material is less than 1.1.

Description

technical field [0001] The non-magnetic cast iron of the present invention is a product with no definite shape, and can be processed into any shape according to service conditions and user requirements. The production of non-magnetic cast iron belongs to the special field of alloy formula and quenching process of cast iron, and the application of non-magnetic cast iron belongs to the field of anti-magnetic and magnetic isolation parts of electric equipment. technical background [0002] Compared with ordinary cast iron, the biggest feature of non-magnetic cast iron is that it has no magnetism. At present, copper alloy, aluminum alloy or stainless steel are used to make antimagnetic and magnetic isolation parts in electric equipment, and the manufacturing process is complicated and the cost is high. The non-magnetic cast iron has a magnetic permeability μ≤1.1, which can reduce hysteresis and eddy loss, and replace the power equipment accessories made of the above materials, ...

Claims

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Application Information

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IPC IPC(8): C22C37/10C22C38/16
Inventor 陈培山
Owner 陈培山
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