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G&M Golden Mangetic Technology ( Shenzhen ) Co., LTD.

Tel:+86-755-86332949  Fax: +86-755-26406857

Address:Unit 603, block A huachuangda building,  Baoan District, Shenzhen, Guangodng 

G&M Golden Magnetic Technology (Hongkong ) Co.,Ltd.

Tel:+852-29477355    Fax:+852-29477356

Office Address:1101 Leader industry center, No.57-59 An pui wan Street, Fotan, Shatin, Hongkong

Factory Add:118 Liangtian Zone, Taimei town, Boluo disrict, huizhou city, guangdong province

Core classification
Nov 09, 2018

Silicon steel core

A silicon steel sheet is an alloy, and a ferrosilicon alloy formed by adding a small amount of silicon (generally 4.5% or less) to pure iron is called silicon steel. The iron core has the highest saturation magnetic induction value of 20000Gs; and because of its good magnetoelectric performance, easy to mass production, low price, and small mechanical stress, it is widely used in the power electronics industry. Such as power transformers, distribution transformers, current transformers and other iron cores. It is the material with the largest amount of production and use in soft magnetic materials. It is also the largest amount of magnetic material used in power transformers. 

Especially suitable for low frequency and high power. Commonly used are cold rolled silicon steel sheet DG3, cold rolled non-oriented electrical steel belt DW, cold rolled oriented electrical steel belt DQ, suitable for medium and small power low frequency transformers and chokes and reactors in various electronic systems and household appliances. Inductor core, these alloys have good toughness and can be processed by punching, cutting, etc. The core has laminated and wound type. However, the loss increases sharply at high frequencies, and the general frequency of use does not exceed 400 Hz. From an application point of view, the choice of silicon steel should consider two factors: magnetism and cost. 

For small motors, reactors and relays, pure iron or low-silicon steel sheets are available; for large motors, high-silicon hot-rolled silicon steel sheets, single-orientation or non-oriented cold-rolled silicon steel sheets are available; for single-oriented cold-rolled silicon steel sheet. When used at the power frequency, the thickness of the commonly used strip is 0.2~0.35 mm; when used at 400 Hz, the thickness of 0.1 mm is usually selected. The thinner the thickness, the higher the price.

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