Patents by Inventor Kanyi Shen

Kanyi Shen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210101230
    Abstract: A grain-oriented silicon steel with low iron loss, wherein the silicon steel is provided with a plurality of grooves on its surface, each of the grooves is 10-60 ?m in width and 5-40 ?m in depth, and the spacing between adjacent grooves is 1-10 mm. The manufacturing method therefor comprises: scoring the surface of the grain-oriented silicon steel with low iron loss by using a laser in order to form the grooves. The grain-oriented silicon steel with low iron loss can maintain the magnetic domain refining effect in a stress-relief annealing process, and avoid the introduction of more residual stress.
    Type: Application
    Filed: January 24, 2018
    Publication date: April 8, 2021
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Meihong WU, Zipeng ZHAO, Guobao LI, Kanyi SHEN, Zhuochao HU, Chen LING, Huande SUN, Huabing ZHANG
  • Publication number: 20210047706
    Abstract: Disclosed is a manufacturing method for a high silicon grain oriented electrical steel sheet, the silicon content of the high silicon grain oriented electrical steel is greater than 4 wt %, comprising the steps of: (1) performing decarburization annealing of a cold-rolled steel plate; (2) allowing high silicon alloy particles in a completely solid state to collide at a high speed with the surface of the decarburization annealed steel plate to be sprayed, thus forming a high silicon alloy coating on the surface of the steel plate to be sprayed; (3) coating a release agent and drying; and (4) annealing. The manufacturing method for the high silicon grain oriented electrical steel sheet of the present invention is inexpensive, and, the high silicon grain oriented electrical steel sheet produced is of stable quality and is provided with great magnetic performance.
    Type: Application
    Filed: March 25, 2019
    Publication date: February 18, 2021
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Huabing ZHANG, Shuangjie CHU, Guobao LI, Wen XIAO, Baojun LIU, Yongjie YANG, Kanyi SHEN, Dan HAN, Zhining HU
  • Publication number: 20200362433
    Abstract: Disclosed is a method for manufacturing stress-relief-annealing-resistant, low-iron-loss grain-oriented silicon steel, the method comprising: carrying out, by means of a pulse laser, scanning grooving on a single surface or two surfaces of a silicon steel sheet after cold rolling, or after decarburizing annealing, or after high temperature annealing or after hot stretching, temper rolling and annealing, and forming several grooves parallel with each other in a rolling direction of the silicon steel sheet, wherein a single pulse time width of the pulse laser is 100 ns or less, and a single pulse peak energy density is 0.
    Type: Application
    Filed: June 21, 2018
    Publication date: November 19, 2020
    Inventors: Shuangjie CHU, Guobao LI, Yongjie YANG, Zipeng ZHAO, Changsong MA, Kanyi SHEN, Meihong WU, Yaming JI, Huabing ZHANG, Zhuochao HU
  • Publication number: 20190255657
    Abstract: An oriented silicon steel product with a low iron loss for a low-noise transformer, and manufacturing method thereof are provided. The oriented 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 visible light normal reflectivity (R) of 40-60% for. By strictly controlling the visible light normal reflectivity of the magnesium silicate bottom layer of the silicon steel substrate and the evenness of the gloss of magnesium silicate bottom layer, lower iron loss, and reduced magnetostriction can be achieved, and thus a silicon steel product with low noise and particularly suitable for transformers can be obtained.
    Type: Application
    Filed: June 13, 2017
    Publication date: August 22, 2019
    Inventors: ZIPENG ZHAO, CHANGJUN HOU, BANGLIN XIANG, KANYI SHEN, GUOBAO LI, CHEN LING, WEIYONG XIE, YANLI SONG
  • Patent number: 10236105
    Abstract: The invention relates to high magnetic induction oriented silicon steel and a preparation method thereof. The oriented silicon steel comprises the following chemical elements by weight percent: 0.035-0.120% of C, 2.9-4.5% of Si, 0.05-0.20% of Mn, 0.005-0.050% of P, 0.005-0.012% of S, 0.015-0.035% of Als, 0.001-0.010% of N, 0.05-0.30% of Cr, 0.005-0.090% of Sn, not more than 0.0100% of V, not more than 0.0100% of Ti, at least one of trace elements of Sb, Bi, Nb and Mo, and the balance of Fe and other inevitable impurities, wherein Sb+Bi+Nb+Mo is 0.0015-0.0250% and (Sb/121.8+Bi/209.0+Nb/92.9+Mo/95.9)/(Ti/47.9+V/50.9) ranges from 0.1 to 15.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: March 19, 2019
    Assignee: BAOSHAN IRON & STEEL CO., LTD
    Inventors: Huabing Zhang, Guobao Li, Xijiang Lu, Yongjie Yang, Zhuochao Hu, Kanyi Shen, Jiaqiang Gao, Meihong Wu
  • Patent number: 9905361
    Abstract: A manufacturing method of oriented silicon steel with magnetic induction B8 of not less than 1.88 T, comprising the following steps: 1) smelting and continuous casting to obtain a slab, wherein the content of N is controlled at 0.002-0.014 wt % in the smelting stage; 2) hot-rolling; 3) cold-rolling; 4) decarbonizing and annealing; 5) nitriding treatment, wherein infiltrated nitrogen content [N]D is controlled to satisfy the formula: 328?0.14a?0.85b?2.33c?[N]D?362?0.16a?0.94b?2.57c, wherein a is the content of Als in the smelting step, with the unit of ppm; b is the content of N element, with the unit of ppm; and c is primary grains size, with the unit of ?m; 6) coating a steel's surfaces with a magnesium oxide layer and annealing; and 7) applying an insulating coating.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: February 27, 2018
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Kanyi Shen, Guobao Li, Shuangjie Chu, Yezhong Sun, Huabing Zhang, Yongjie Yang, Zhuochao Hu, Bin Zhao, Qi Xu, Jie Huang, Peili Zhang
  • Patent number: 9460054
    Abstract: A method for detecting electromagnetic property of oriented silicon steel, the method comprises: measuring Euler angles of each of crystal grains in a specimen by use of metallographic etch-pit method; calculating orientation deviation angle ?i (degree) of the crystal grain; combining area Si (mm2) of the crystal grain and correction coefficient X of element Si (X=0.1˜10 T/degree); correcting on the basis of the magnetic property B0 (saturation magnetic induction, T) of single-crystal material by using these parameters (?i, Si, X), formula for correcting is B 8 = - 0.015 × X × ? n = 1 i ? S i ? ? ? i ? ? n = 1 i ? S i + ( B 0 - 0.04 ) ( 1 ) obtaining electromagnetic property B8 of the oriented silicon steel by the above calculations.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: October 4, 2016
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Meihong Wu, Weizhong Jin, Huande Sun, Guohua Yang, Kanyi Shen, Jie Huang, Guobao Li
  • Publication number: 20150255211
    Abstract: A manufacturing method of oriented silicon steel with magnetic induction B8 of not less than 1.88 T, comprising the following steps: 1) smelting and continuous casting to obtain a slab, wherein the content of N is controlled at 0.002-0.014 wt % in the smelting stage; 2) hot-rolling; 3) cold-rolling; 4) decarbonizing and annealing; 5) nitriding treatment, wherein infiltrated nitrogen content [N]D is controlled to satisfy the formula: 328?0.14a?0.85b?2.33c?[N]D?362?0.16a?0.94b?2.57c, wherein a is the content of Als in the smelting step, with the unit of ppm; b is the content of N element, with the unit of ppm; and c is primary grains size, with the unit of ?m; 6) coating a steel's surfaces with a magnesium oxide layer and annealing; and 7) applying an insulating coating.
    Type: Application
    Filed: December 11, 2012
    Publication date: September 10, 2015
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Kanyi Shen, Guobao Li, Shuangjie Chu, Yezhong Sun, Huabing Zhang, Yongjie Yang, Zhuochao Hu, Bin Zhao, Qi Hu, Jie Huang, Peili Zhang
  • Publication number: 20150206633
    Abstract: The invention relates to high magnetic induction oriented silicon steel and a preparation method thereof. The oriented silicon steel comprises the following chemical elements by weight percent: 0.035-0.120% of C, 2.9-4.5% of Si, 0.05-0.20% of Mn, 0.005-0.050% of P, 0.005-0.012% of S, 0.015-0.035% of Als, 0.001-0.010% of N, 0.05-0.30% of Cr, 0.005-0.090% of Sn, not more than 0.0100% of V, not more than 0.0100% of Ti, at least one of trace elements of Sb, Bi, Ni and Mo, and the balance of Fe and other inevitable impurities, wherein Sb+Bi+Nb+Mo is 0.0015-0.0250% and (Sb/121.8+Bi/209.0+Nb/92.9+Mo/95.9)/(Ti/47.9+V/50.9) ranges from 0.1 to 15.
    Type: Application
    Filed: December 11, 2012
    Publication date: July 23, 2015
    Inventors: Huabing Zhang, Guabao Li, Xijiang Lu, Yongjie Yang, Zhuochao Hu, Kanyi Shen, Jiaqiang Gao, Meihong Wu
  • Patent number: 9038429
    Abstract: The invention provides a method for producing grain-oriented silicon steel with single cold rolling, comprising: 1) smelting, refining and continuous casting to obtain a casting blank; 2) hot rolling; 3) normalization, i.e. normalizing annealing and cooling; 4) cold-rolling, i.e. single cold rolling at a cold rolling reduction rate of 75-92%; 5) decarburizing annealing at 780-880° C. for 80-350 s in a protective atmosphere having a due point of 40-80° C., wherein the total oxygen [O] in the surface of the decarburized sheet: 171/t?[O]?313/t (t represents the actual thickness of the steel sheet in mm), the amount of absorbed nitrogen: 2-10 ppm; 6) high temperature annealing, wherein the dew point of the protective atmosphere: 0-50° C., the temperature holding time at the first stage: 6-30 h, the amount of absorbed nitrogen during high-temperature annealing: 10-40 ppm; 7) hot-leveling annealing.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: May 26, 2015
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Guobao Li, Pijun Zhang, Yongjie Yang, Kanyi Shen, Zhuochao Hu, Peiwen Wu, Weizhong Jin, Quanli Jiang
  • Publication number: 20130299049
    Abstract: A method for manufacturing a grain-oriented silicon steel having excellent magnetic performance, comprising steps as follows 1)conventionally melting and casting into a steel blank; 2) heating the steel blank and hot rolling the same into a strip of steel; 3)normalizing process; carrying out the normalizing process having two stages, wherein the strip is firstly heated to 1100˜1200° C., then cooled to 900˜1000° C. within 50˜200 s; and next, the strip is rapidly cooled in water having a temperature of 10-100; in this period, a tension force is applied to the strip of steel, the strip of steel in the temperature range of 900 ° C.˜500° C. has a stress of 1˜200N/mm2; 4)cold rolling, i.e. carrying out a primary cold rolling, or a double cold rolling with intermediate annealing; 5)carrying out primary recrystallizing annealing, then coating an annealing separator, whose main composition is MgO, to carry out final product annealing comprising secondary recrystallizing annealing and purifying annealing.
    Type: Application
    Filed: April 28, 2011
    Publication date: November 14, 2013
    Inventors: Meihong Wu, Weizhong Jin, Huande Sun, Guohua Yang, Kanyi Shen, Jie Huang, Deyang Hu, Guobao Li
  • Publication number: 20130233450
    Abstract: A method for manufacturing an oriented silicon steel product with high magnetic-flux density comprises the following procedures: 1) smelting and casting, wherein the oriented silicon steel is composed of, by weight, 0.035˜0.065% of C, 2.9˜4.0% of Si, 0.05˜0.20% of Mn, 0.005˜0.01% of S, 0.015˜0.035% of Al, 0.004˜0.009% of N, 0.005˜0.090% of Sn, 0.200˜0.800% of Nb, the rest being Fe; and after being smelted, molten steel is secondarily refined and continuous casted into steel slabs; 2) hot rolling; 3) normalizing; 4) cold rolling; 5) decarburization annealing; 6) MgO coating; 7) high temperature annealing: said sheets are firstly heated to 700˜900° C. and then secondarily heated to 1200° C. at temperature rise rate of 9˜17° C./hr and maintained at 1200° C. for 20 hr; 8) coating an insulation layer.
    Type: Application
    Filed: April 14, 2011
    Publication date: September 12, 2013
    Inventors: Qi Xu, Kanyi Shen, Guobao Li, Weizhong Jin, Bingzhong Jin, Dejun Su, Renbiao Zhang, Hai Liu
  • Publication number: 20130090876
    Abstract: A method for detecting electromagnetic property of oriented silicon steel, the method comprises: measuring Euler angles of each of crystal grains in a specimen by use of metallographic etch-pit method; calculating orientation deviation angle ?i (degree) of the crystal grain; combining area Si (mm2) of the crystal grain and correction coefficient X of element Si (X=0.1˜10 T/degree); correcting on the basis of the magnetic property B0 (saturation magnetic induction, T) of single-crystal material by using these parameters (?i, Si, X), formula for correcting is B 8 = - 0.015 × X × ? n = 1 i ? S i ? ? ? i ? ? n = 1 i ? S i + ( B 0 - 0.04 ) ( 1 ) ; obtaining electromagnetic property B8 of the oriented silicon steel by the above calculations.
    Type: Application
    Filed: April 12, 2011
    Publication date: April 11, 2013
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Meihong Wu, Weizhong Jin, Huande Sun, Guohua Yang, Kanyi Shen, Jie Huang, Guobao Li
  • Publication number: 20120000262
    Abstract: The invention provides a method for producing grain-oriented silicon steel with single cold rolling, comprising: 1) smelting, refining and continuous casting to obtain a casting blank; 2) hot rolling; 3) normalization, i.e. normalizing annealing and cooling; 4) cold-rolling, i.e. single cold rolling at a cold rolling reduction rate of 75-92%; 5) decarburizing annealing at 780-880° C. for 80-350 s in a protective atmosphere having a due point of 40-80° C., wherein the total oxygen [0] in the surface of the decarburized sheet: 171/t?[O]?313/t (t represents the actual thickness of the steel sheet in mm), the amount of absorbed nitrogen: 2-10 ppm; 6) high temperature annealing, wherein the dew point of the protective atmosphere: 0-50° C., the temperature holding time at the first stage: 6-30 h, the amount of absorbed nitrogen during high-temperature annealing: 10-40 ppm; 7) hot-leveling annealing.
    Type: Application
    Filed: December 31, 2009
    Publication date: January 5, 2012
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Guobao Li, Pijun Zhang, Yongjie Yang, Kanyi Shen, Zhuochao Hu, Peiwen Wu, Weizhong Jin, Quanli Jiang