Patents by Inventor Peili Zhang
Peili Zhang 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).
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Patent number: 10147528Abstract: A non-oriented electrical steel sheet with fine magnetic performance, and a calcium treatment method therefor, including an RH (Ruhrstahl-Heraeus) refinement step. The RH refinement step sequentially comprises a decarbonization step, an aluminum deoxidation step, and a step of adding calcium alloy. In the step of adding calcium alloy, time when the calcium alloy is added satisfies the following condition: time interval between Al and Ca/total time after ?Al=0.2-0.8. In this method, production cost is reduced, the production process is simple, a normal processing cycle of RH refinement is not affected, the device is convenient in operation and is controllable, and foreign substances are controllable in both shape and quantities. The non-oriented electrical steel sheet prepared according to the present invention has fine magnetic performance, and the method can be used for mass production of the non-oriented electrical steel sheet with fine magnetic performance.Type: GrantFiled: March 27, 2012Date of Patent: December 4, 2018Assignee: Boashan Iron & Steel Co., LTDInventors: Feng Zhang, Xiandong Liu, Shishu Xie, Xuejun Lu, Xiao Chen, Aihua Ma, Peili Zhang, Yanwei Wang, Lan Zhang, Hongxu Hei
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Patent number: 9905361Abstract: 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: GrantFiled: December 11, 2012Date of Patent: February 27, 2018Assignee: 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
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Patent number: 9738946Abstract: A method for producing a silicon steel normalizing substrate comprises steelmaking, hot rolling and normalizing steps. A normalizing furnace is used in the normalizing step, and along a moving direction of strip steel, the normalizing furnace sequentially comprises: a preheating section, a nonoxidizing heating section, a furnace throat, furnace sections for subsequent normalizing processing, and a delivery seal chamber. Furnace pressures of the normalizing furnace are distributed as follows: the furnace pressure of a downstream furnace section adjacent to the furnace throat along the moving direction of the strip steel is the highest, the furnace pressure decreases gradually from the furnace section with the highest furnace pressure to a furnace section in an inlet direction of the normalizing furnace, and the furnace pressure decreases gradually from the furnace section with the highest furnace pressure to a furnace section in an outlet direction of the normalizing furnace.Type: GrantFiled: March 27, 2012Date of Patent: August 22, 2017Assignee: Baoshan Iron & Steel, Co., Ltd.Inventors: Hongxu Hei, Xiao Chen, Xiandong Liu, Shishu Xie, Dejun Su, Runjie Lin, Peili Zhang, Rongqiang Jiang, Miao Ye
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Patent number: 9383745Abstract: A method for controlling furnace temperature of a fired heating furnace is disclosed, comprising: measuring furnace temperatures to obtain furnace temperature feedback values; calculating the differences between furnace temperature setting values and the furnace temperature feedback values as discrepancy values DV1, in accordance with the furnace temperature feedback values and the furnace temperature setting value; calculating the differences between the furnace temperature setting values and the furnace temperature feedback values in a unit time, i.e.Type: GrantFiled: April 27, 2011Date of Patent: July 5, 2016Assignee: Baoshan Iron & Steel Co., Ltd.Inventors: Yongfeng Liu, Guoqiang Qian, Huazhong Gu, Rong Chen, Zhicheng Wang, Chunguo Lv, Dejian Wen, Peili Zhang
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Publication number: 20150255211Abstract: 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: ApplicationFiled: December 11, 2012Publication date: September 10, 2015Applicant: 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
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Publication number: 20150034212Abstract: A non-oriented electrical steel sheet with fine magnetic performance, and a calcium treatment method therefor, including an RH (Ruhrstahl-Heraeus) refinement step. The RH refinement step sequentially comprises a decarbonization step, an aluminum deoxidation step, and a step of adding calcium alloy. In the step of adding calcium alloy, time when the calcium alloy is added satisfies the following condition: time interval between Al and Ca/total time after ?Al=0.2-0.8. In this method, production cost is reduced, the production process is simple, a normal processing cycle of RH refinement is not affected, the device is convenient in operation and is controllable, and foreign substances are controllable in both shape and quantities. The non-oriented electrical steel sheet prepared according to the present invention has fine magnetic performance, and the method can be used for mass production of the non-oriented electrical steel sheet with fine magnetic performance.Type: ApplicationFiled: March 27, 2012Publication date: February 5, 2015Applicant: Baoshan Iron & Steel Co., Ltd.Inventors: Feng Zhang, Xiandong Liu, Shishu Xie, Xuejun Lu, Xiao Chen, Aihua Ma, Peili Zhang, Yanwei Wang, Lan Zhang, Hongxu Hei
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Publication number: 20150013846Abstract: A method for producing a silicon steel normalizing substrate comprises steelmaking, hot rolling and normalizing steps. A normalizing furnace is used in the normalizing step, and along a moving direction of strip steel, the normalizing furnace sequentially comprises: a preheating section, a nonoxidizing heating section, a furnace throat, furnace sections for subsequent normalizing processing, and a delivery seal chamber. Furnace pressures of the normalizing furnace are distributed as follows: the furnace pressure of a downstream furnace section adjacent to the furnace throat along the moving direction of the strip steel is the highest, the furnace pressure decreases gradually from the furnace section with the highest furnace pressure to a furnace section in an inlet direction of the normalizing furnace, and the furnace pressure decreases gradually from the furnace section with the highest furnace pressure to a furnace section in an outlet direction of the normalizing furnace.Type: ApplicationFiled: March 27, 2012Publication date: January 15, 2015Applicant: Baoshan Iron & Steel Co., Ltd.Inventors: Hongxu Hei, Xiao Chen, Xiandong Liu, Shishu Xie, Dejun Su, Runjie Lin, Peili Zhang, Rongqiang Jiang, Miao Ye
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Publication number: 20140364994Abstract: A method for controlling furnace temperature of a fired heating furnace is disclosed, comprising: measuring furnace temperatures to obtain furnace temperature feedback values; calculating the differences between furnace temperature setting values and the furnace temperature feedback values as discrepancy values DV1, in accordance with the furnace temperature feedback values and the furnace temperature setting value; calculating the differences between the furnace temperature setting values and the furnace temperature feedback values in a unit time, i.e.Type: ApplicationFiled: April 27, 2011Publication date: December 11, 2014Applicant: Baoshan Iron & Steel Co., Ltd.Inventors: Yongfeng Liu, Guoqiang Qian, Huazhong Gu, Rong Chen, Zhicheng Wang, Chunguo Lv, Dejian Wen, Peili Zhang