SILICON STEEL PRODUCT WITH LOW IRON LOSS FOR LOW-NOISE TRANSFORMER, AND MANUFACTURING METHOD THEREOF

Title:

SILICON STEEL PRODUCT WITH LOW IRON LOSS FOR LOW-NOISE TRANSFORMER, AND MANUFACTURING METHOD THEREOF

Document Type and Number:

WIPO Patent Application WO/2018/059006

Kind Code:

A1

Abstract:

A silicon steel product with low iron loss for a low-noise transformer, and manufacturing method thereof. The silicon steel product comprises: a silicon steel substrate, a magnesium silicate bottom layer formed on a surface of the silicon steel substrate, and an insulation coating applied on the magnesium silicate bottom layer. The magnesium silicate bottom layer has a normal reflection (R) of 40-60% for visible light. The silicon steel product with low iron loss for a low-noise transformer achieves normal reflection of visible light by stringent control of the magnesium silicate bottom layer of the silicon steel substrate. The magnesium silicate bottom layer has a uniform gloss to reduce iron loss and minimize magnetically driven expansion and contraction, resulting in low noise and making the silicon steel product especially suitable for a transformer.

Inventors:

ZHAO ZIPENG (CN)
HOU CHANGJUN (CN)
XIANG BANGLIN (CN)
SHEN KANYI (CN)
LI GUOBAO (CN)
LING CHEN (CN)
XIE WEIYONG (CN)
SONG YANLI (CN)

Application Number:

PCT/CN2017/088090

Publication Date:

April 05, 2018

Filing Date:

June 13, 2017

Export Citation:

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Assignee:

BAOSHAN IRON & STEEL (CN)

International Classes:

C22C38/02

Foreign References:

CN101638766A	2010-02-03
US4443425A	1984-04-17
KR20150074860A	2015-07-02
JP2011099155A	2011-05-19
CN103255274A	2013-08-21
CN105401071A	2016-03-16
CN104060144A	2014-09-24

Other References: