Patents Assigned to Baoshan Iron & Steel Co., Ltd.
  • Publication number: 20190233913
    Abstract: A 980 MPa-grade hot-rolled dual-phase steel and a manufacturing method therefor. The chemical components of the steel comprise, in percentage by weight, 0.10%-0.20% of C, 0.8%-2.0% of Si, 1.0%-2.0% of Mn, 0-0.02% of P, 0-0.005% of S, 0-0.003% of O, 0.02%-0.06% of Al, 0-0.006% of N, 0.01%-0.06% of Nb, 0.01%-0.05% of Ti, and the balance of Fe and inevitable impurities. In addition, the components need to meet the following relation: 0.05%?Nb+Ti?0.10. The microstructure of the steel is made of ferrite and martensite. The average grain size of the ferrite is 5-10 ?m, and the equivalent grain size of the martensite is 15-20 ?m.
    Type: Application
    Filed: June 19, 2017
    Publication date: August 1, 2019
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Huanrong WANG, Ana YANG, Jiansu ZHANG, Wei WANG
  • Publication number: 20190210326
    Abstract: A method for producing a film-coated metal plate, comprising the steps of: (1) pre-heating and soaking a metal plate; (2) hot coating the metal plate with a thin film; (3) cooling the metal plate; (4) compressing the metal plate to dry it; (5) reheating and post-processing the metal plate. This method is able to produce a metal plate having a thin film coated on the surface thereof and to easily control the thickness of a melting layer of the thin film in the process of production, especially control the difference between the thicknesses of the melting layers on both sides; and meanwhile, this method is able to increase the cooling rate. Accordingly, this method enhances the performance of the film-coated metal plate and increases the application range of the film-coated metal plate by means of a more environmentally friendly producing process and lower energy consumption, and is able to produce good economic and social benefits.
    Type: Application
    Filed: June 23, 2016
    Publication date: July 11, 2019
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Peng LI, Hongxing CHEN, Zhangwei WANG, Hua NI
  • Publication number: 20190203307
    Abstract: A roller treatment process and a treatment device suitable for a total-amount steel slag treatment. The treatment process is: firstly, a slag tank (2) with the molten slag is tightly held by a slag tank tilting mechanism and moved to a slag inlet position, the slag tank (2) is tilted to pour the molten slag with good fluidity into a rotary roller device (5) through a feeding chute (51), so that a roller treatment is achieved; secondly, when the steel slag (3) without fluidity in the slag tank (2) cannot flow out, a slag removal machine (4) is used for pushing the high-viscosity slag or the solid slag into the roller device (5); and thirdly, the slag tank (2) is reversed by a large angle tilting to make the slag at the bottom of the tank drop into the roller device (5), so that the total-amount steel slag treatment of the same roller device (5) is achieved.
    Type: Application
    Filed: March 17, 2017
    Publication date: July 4, 2019
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Yongqian LI, Yongli XIAO, Yin LIU, Youping ZHANG, Mengqin XIE
  • Publication number: 20190194770
    Abstract: A cold-rolled high-strength steel plate having excellent phosphating performance and formability and a manufacturing method therefor. The chemical composition of the steel plate is, in percentage by weight, C 0.01-0.20%, Si 1.50-2.50%, Mn 1.50-2.50%, P?0.02%, S?0.02%, Al 0.03-0.06%, N?0.01%, the remainder being Fe and impurities. The surface layer of the steel plate has an inner oxide layer with a thickness of 1-5 ?m, and there is no enrichment of Si and Mn on the surface of the steel plate. The steel plate has good phosphating performance and formability, with a tensile strength of ?980 MPa and an elongation of ?20%. The structure at the room temperature contains retained austenite, ferrite, and martensite and/or bainite.
    Type: Application
    Filed: August 29, 2017
    Publication date: June 27, 2019
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Shu ZHOU, Yong ZHONG, Xinyan JIN, Li WANG
  • Publication number: 20190194774
    Abstract: A cold-rolled steel plate (1) and a manufacturing method therefor. The chemical composition of the steel plate (1) in percentage by weight is: C 0.15-0.25%, Si 1.50-2.50%, Mn 2.00-3.00%, P?0.02%, S?0.01%, Al 0.03-0.06%, N?0.01%, with the balance being Fe and impurities. The surface layer has an inner oxide layer (2) with a thickness of 1-5 ?m, and there is no enrichment of Si or Mn on the surface. The steel plate (1) has good phosphating performance and formability, with a tensile strength of ?1180 MPa and an elongation of ?14%, and has a complex-phase structure of ferrite, martensite, and retained austenite, the content of the retained austenite being not lower than 5%. A dew point is at ?25° C. to 10° C. in continuous annealing, such that external oxidation transitions to internal oxidation.
    Type: Application
    Filed: August 29, 2017
    Publication date: June 27, 2019
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Shu ZHOU, Yong ZHONG, Xinyan JIN, Li WANG
  • Publication number: 20190194772
    Abstract: A 980 MPa-grade hot-rolled ferrite bainite dual-phase steel and a manufacturing method therefor. The chemical components of the steel comprise, in percentage by weight, 0.15-0.30% of C, 0.8-2.0% of Si, 1.0-2.0% of Mn, 0-0.02% of P, 0-0.005% of S, 0-0.003% of O, 0.5-1.0% of Al, 0-0.006% of N, 0.01-0.06% of Nb, 0.01-0.05% of Ti, and the balance of Fe and inevitable impurities. In addition, the chemical components meet the following relations: 0.05%?Nb+Ti?0.10%, and 2.5?Al/C?5.0. The microstructure of the steel is made of ferrite and bainite. The average grain size of the ferrite is 5-10 ?m, and the equivalent grain size of the bainite is less than or equal to 20 ?m. The yield strength of the steel is greater than or equal to 600 MPa, the tensile strength of the steel is greater than or equal to 980 Mpa, and the ductility is greater than or equal to 15%.
    Type: Application
    Filed: June 19, 2017
    Publication date: June 27, 2019
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Huanrong WANG, Ana YANG, Jiansu ZHANG, Wei WANG
  • Patent number: 10329648
    Abstract: A method for manufacturing a superior 13Cr thickened drillrod comprises the following steps: firstly, thickening the ends of a steel tube with a composition so as to obtain a drillrod with thickened ends, the composition in percentage by weight being: C: 0.01-0.05%, Si?0.5%, Mn: 0.2-1.0%, Cr: 12-14%, Mo: 1-3%, Ni: 4-6%, and a balance of Fe and inevitable impurities; after heating the tube as a whole to 950-1000° C., air cooling same and tempering same at 600-650° C.; and machining the two thickened ends respectively into an externally threaded drillrod coupler and an internally threaded drillrod coupler; wherein the tube end thickening is an external thickening, including three rounds of heating and three rounds of thickening, with at least one pass of deformation for each round, and the heating temperature being 1150-1200° C.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: June 25, 2019
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Peng Zhao, Yanpeng Song, Jianwei Zhang, Minghua Wang, Chunxia Zhang
  • Patent number: 10301736
    Abstract: The invention relates to an inorganic aqueous surface treatment agent for a single-face electrogalvanized, chromium free surface treated steel plate, a single-face electrogalvanized, chromium-free surface treated steel plate used for fuel tanks and a process of making the same.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: May 28, 2019
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Yanliang Zhao, Yigang Dai, Jianping Zhang, Lan Zhu
  • Publication number: 20190144965
    Abstract: There is disclosed a lightweight steel with an enhanced elastic modulus, wherein the lightweight steel has a chemical composition by mass percentage of 0.001%?C?0.30%, 0.05%?Mn?4.0%, 1.5%<Al<3.0%, 1.5%?Ti?7.0%, 0.5%?B?3.6%, and the remainder consisting of Fe and other unavoidable impurities. A microstructure of the lightweight steel comprises a matrix and fine hardening granules evenly distributed throughout the matrix. The matrix entirely or partially comprises a ferrite and/or a bainite. The hardening granule comprises at least TiB2.
    Type: Application
    Filed: March 30, 2017
    Publication date: May 16, 2019
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Qi Yang, Li Wang
  • Patent number: 10287659
    Abstract: A high-formability and super-strength cold-rolled steel sheet and a manufacturing method thereof. The weight percentage of its components is: C 0.15-0.25%, Si 1.00-2.00%, Mn 1.50-3.00%, P?0.015%, S?0.012%, Al 0.03-0.06%, N?0.008%, and the rest are Fe and inevitable impurities. The manufacturing method comprises the following steps: 1) smelting and casting; 2) heating to 1170˜1230° C. and performing thermal insulation; 3) performing hot rolling, the finish rolling temperature being 880±30° C., and coiling at 550˜650° C.; and 4) performing acid washing, cold rolling, and annealing, the cold rolling reduction being 40-60%, annealing at 860-920° C., and performing slow cooling to 690-750° C. with the cooling rate of 3˜10° C./s; performing rapid cooling at 240˜320° C., with the cooling speed ?50° C./s, then heating to 360˜460° C., and performing thermal insulation for 100˜500 s to cool to the room temperature at last.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: May 14, 2019
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Yong Zhong, Li Wang, Weijun Feng, Wei Xiong, Jianjun Zhi, Guangkui Hu
  • Patent number: 10286385
    Abstract: Molybdenum sulphide containing catalysts are provided which have been produced using a microemulsion approach. The catalysts thereby produced have a unique morphology which directly translates into improved performance in the conversion of syngas to alcohol and in the selectivity of this reaction towards producing ethanol.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: May 14, 2019
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Jorge Beltramini, Muxina Konarova, Fengqiu Tang
  • Publication number: 20190134947
    Abstract: There is disclosed in the disclosure a protective steel plate with excellent cold roll formability, comprising: three soft steel layers (1, 4, 5) and two hard steel layers (2, 3), wherein the three soft steel layers (1, 4, 5) and the two hard steel layers (2, 3) are positioned alternately, and face layers of the protective steel plate are soft steel layers (1, 4, 5), wherein the hard steel layers (2, 3) and the soft steel layers (1, 4, 5) are atomically bonded by rolling cladding; wherein the soft steel layers (1, 4, 5) comprise chemical elements in percentage by mass of: C: 0.001-0.01%, 0<Si?0.005%, Mn: 0.05-0.15%, 0<Al?0.005%, Ti: 0.01-0.10%, with a balance of Fe and other unavoidable impurities.
    Type: Application
    Filed: April 26, 2017
    Publication date: May 9, 2019
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Fengming SONG, Xiaoping HU, Donghui WEN
  • Publication number: 20190134948
    Abstract: There is disclosed in the disclosure a protective clad steel plate, comprising hard steel layers (1, 3, 5) and soft steel layers (2, 4) arranged alternately, wherein face layers of the protective clad steel plate are hard steel layers (1, 3, 5), wherein the hard steel layers (1, 3, 5) and soft steel layers (2, 4) are atomically bonded by rolling cladding; wherein the soft steel layers (2, 4) comprise chemical elements in percentage by mass of: C: 0.001-0.01%, 0<Si?0.005%, Mn: 0.05-0.15%, 0<Al?0.005%, Ti: 0.01-0.10%, with a balance of Fe and unavoidable impurities.
    Type: Application
    Filed: April 26, 2017
    Publication date: May 9, 2019
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Fengming Song, Donghui Wen, Xiaoping Hu
  • Publication number: 20190136336
    Abstract: A high-magnetic-induction low-iron-loss non-oriented silicon steel sheet and a manufacturing method therefor. The chemical composition by mass percentages is: C?0.005%, Si: 0.1%˜1.6%, Mn: 0.1%˜0.5%, P?0.2%, S?0.004%, Al?0.003%, N?0.005%, Nb?0.004%, V?0.004% and Ti?0.003%, with the balance being Fe and inevitable impurities; and at the same time satisfies: 120?[Mn]/[S]?160, and [Nb]/93+[V]/51+[Ti]/48+[Al]/27?[C]/12+[N]/14. After casting, the cooling rate in a cool-down process of casting slab is controlled, and a temperature controlling method is used to adjust the charging temperature of casting slab.
    Type: Application
    Filed: May 22, 2017
    Publication date: May 9, 2019
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Feng Zhang, Xianshi Fang, Shishu Xie, Zhenyu Zong
  • Patent number: 10274975
    Abstract: The present invention discloses an acid concentration control method and device for cold rolling pickling production line. In the method, the acid circulating tank of the pickling production line are provided with three acid-filling tanks. And the three acid-filling tanks are interconnected with each other. An acid concentration measuring device is concatenated on the acid solution back-flow pipeline of each acid-filling tank and acid tank, through which the actual acid concentration of the acid solution in the acid tank of the production line may be measured. The measured acid concentration, after being analyzed by the analyzer, will be transmitted to the multi-variable controller where it is compared to the specified acid concentration as per process requirements. The difference between the measured acid concentration and the specified acid concentration will be used as the input value for the model of the multi-variable controller.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: April 30, 2019
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Anxiang Tang, Lifeng Shen Tu
  • 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: 10227828
    Abstract: The invention discloses a drill pipe having ultra-high toughness and high strength and comprising the following chemical elements in mass percentage: C: 0.24-0.30%, Si: 0.1-0.5%, Mn: 0.7-1.5%, Cr: 0.7-1.5%, Mo: 0.5-0.75%, V: 0.01-0.10%, Nb: 0.01-0.05%, P?0.015%, S?0.005%, and the balance of Fe and unavoidable impurities; and a process of manufacturing the drill pipe having ultra-high toughness and high strength, comprising: heating the drill pipe as a whole to 900-950° C.; subjecting the inner surface of the drill pipe to axial-flow water-spray cooling and the outer surface of the drill pipe to laminar-flow water-spray cooling while controlling the amount of the water sprayed at thickened ends of the drill pipe and that along the pipe body to be different from each other; and controlling the tempering temperature to be 650-675° C. The inventive drill pipe having ultra-high toughness and high strength has a longitudinal full-size impact toughness at ?20° C. of at least 100 J and has a strength of 135 ksi.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: March 12, 2019
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Peng Zhao, Jie Yu
  • Patent number: 10208362
    Abstract: An HT550 steel plate with ultrahigh toughness and excellent weldability and a manufacturing method thereof are disclosed. Based on a component system with ultralow-C, high-Mn, Nb-microalloying, ultramicro Ti treatment, Mn/C is controlled in the range of 15˜30, (% Si)×(% Ceq) is less than or equal to 0.050, (% C)×(% Si) is less than or equal to 0.010, (% Mo)×[(% C)+0.13(% Si)] is in the range of 0.003˜0.020, the ratio Ti/N is in the range of 2.0˜4.0, the steel plate is alloyed with (Cu+Ni+Mo), Ni/Cu is greater than or equal to 1.0, Ca treatment is performed, and Ca/S is in the range of 0.80˜3.00; by optimizing TMCP process, the steel plate has microstructures of fine ferrite plus self-tempered bainite with an average grain size being less than or equal to 15 ?m, yield strength being 460 MPa or more, tensile strength being 550˜700 MPa, yield ratio being 0.85 or less, and ?60° C.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: February 19, 2019
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Zicheng Liu, Xianju Li
  • Patent number: 10208369
    Abstract: A high-hardness low-alloy wear-resistant steel sheet and a method of manufacturing the same, which has the chemical compositions (wt %): C: 0.33-0.45%; Si: 0.10-0.50%; Mn: 0.50-1.50%; B: 0.0005-0.0040%; Cr: less than or equal to 1.50%; Mo: less than or equal to 0.80%; Ni: less than or equal to 2.00%; Nb: less than or equal to 0.080%; V: less than or equal to 0.080%; Ti: less than or equal to 0.060%; RE: less than or equal to 0.10%; W: less than or equal to 1.00%; Al: 0.010-0.080%, Ca: 0.0010-0.0080%, N: less than or equal to 0.0080%, O: less than or equal to 0.0080%, H: less than or equal to 0.0004%, P: less than or equal to 0.015%, S: less than or equal to 0.010%, and (Cr/5+Mn/6+50B): more than or equal to 0.20% and less than or equal to 0.50%; (Mo/3+Ni/5+2Nb): more than or equal to 0.02% and less than or equal to 0.50%; (Al+Ti): more than or equal to 0.01% and less than or equal to 0.13%, the remainders being Fe and unavoidable impurities.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: February 19, 2019
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Hongbin Li, Liandeng Yao, Guobin Song
  • Publication number: 20190048439
    Abstract: A sintered Ti alloy comprising: 4 to 6 wt. % iron; 1 to 4 wt. % aluminium or 1 to 3 wt. % copper; >0 to 0.5 wt. % silicon; >0 to 0.3 wt. % boron; >0 to 1 wt. % lanthanum, and the balance being titanium with incidental impurities. In the associated powder metallurgy formation process, the boron and lanthanum content is preferably introduced into a blended powder mixture in the form of lanthanum boride (LaB6).
    Type: Application
    Filed: September 16, 2015
    Publication date: February 14, 2019
    Applicant: Baoshan Iron & Steel Co., Ltd.
    Inventors: Yafeng YANG, Ma QIAN, Shudong LUO, Jifeng SUN, Aijun HUANG