Patents Assigned to Baoshan Iron & Steel Co., Ltd.
  • Publication number: 20190039021
    Abstract: A hydrogel composite draw material for forward osmosis comprising: a porous elastic polymeric foam element including a three-dimensional continuous network of pores interpenetrated with a polymer hydrogel. In use, the hydrogel composite draw material draws a water flux of at least 3.5 L/m2h.
    Type: Application
    Filed: September 15, 2015
    Publication date: February 7, 2019
    Applicant: Baoshan Iron & Steel Co., Ltd.
    Inventors: Jing WEI, Ze-Xian LOW, Huanting WANG, George SIMON
  • Patent number: 10176910
    Abstract: The present invention provides a non-oriented silicon steel with excellent magnetic properties and a manufacturing process therefor. During the manufacturing process of the present invention, the temperature T of the molten steel of steel tapped from a converter during steelmaking and the carbon content [C] and the free oxygen content [O] comply with the following formula: 7.27×103?[O][C]e(?5000/T)?2.99×104, and the final annealing step uses tension annealing at a low temperature for a short time. A non-oriented silicon steel with a low iron loss, and excellent anisotropy of iron loss can be obtained by means of the manufacturing process of the present invention.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: January 8, 2019
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Shishu Xie, Xiandong Liu, Xiao Chen, Hongxu Hei, Bo Wang, Aihua Ma, Liang Zou, Huawei Zhang, Wei Cao, Feng Zhang, Junliang Liu
  • Publication number: 20180362349
    Abstract: A method of producing an electrochemically derived graphene oxide and product produced therefrom. The method comprises locating graphite particles within an electrochemical cell having a working electrode, counter electrode, and an aqueous acid electrolyte, the working electrode being positioned within the electrolyte to contact at least a portion of the graphite particles; agitating the graphite particles within the electrolyte; and applying a potential difference between the working electrode and counter electrode, thereby resulting in electrochemical exfoliation and oxidation of the graphite particles to produce graphene oxide.
    Type: Application
    Filed: December 14, 2015
    Publication date: December 20, 2018
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Yulin ZHONG, Dan LI, George Philip SIMON
  • Publication number: 20180363093
    Abstract: A dual-hardness clad steel plate. One surface of the steel plate is a high-hardness layer, the other surface of the steel plate is a low-hardness layer, and a combination of atoms is achieved between the high-hardness layer and the low-hardness layer by rolling bonding, wherein Mn13 steel is adopted for the low-hardness layer, and the Brinell hardness of the high-hardness layer is greater than 600. Further disclosed is a production method of the dual-hardness clad steel plate, comprising: 1) respectively preparing a high-hardness layer slab and a low-hardness layer slab; 2) assembling: preprocessing combined faces of the slabs, carrying out peripheral welded sealing on joint faces of the slabs, and carrying out vacuumizing treatment on a composite slab after welded sealing; 3) heating; 4) carrying out composite rolling; 5) cooling; and 6) carrying out thermal treatment, wherein the heating temperature is 1050-1100° C.
    Type: Application
    Filed: December 14, 2016
    Publication date: December 20, 2018
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Xiaoting ZHAO, Bo YAN, Liandeng YAO, Sihai JIAO, Hongbin LI
  • Publication number: 20180363145
    Abstract: A film forming treatment agent for a composite chemical conversion film for magnesium alloy, and a film forming process method, and a composite chemical conversion film are provided. Components of the film forming treatment agent for a composite chemical conversion film for magnesium alloy comprise a water solution and a suspension of reduced graphene oxide flakes to the water solution. The water solution comprises strontium ions at 0.1 mol/L to 2.5 mol/L and phosphate ions at 0.06 mol/L to 1.5 mol/L, and pH of the water solution is 1.5 to 4.5. Concentration of the reduced graphene oxide varies between 0.1 mg/L and 5 mg/L. The film forming process method for a composite chemical conversion film for magnesium alloy comprises the following steps of: 1) pretreatment on surface of magnesium alloy matrix; 2) immersion of magnesium alloy matrix in the film forming treatment agent; and 3) removal of magnesium alloy pieces for drying in air.
    Type: Application
    Filed: December 6, 2016
    Publication date: December 20, 2018
    Applicant: Baoshan Iron & Steel Co., Ltd.
    Inventors: Shiwei XU, Weineng TANG, Xiaobo CHEN, Cong KE, Nick BIRBILIS, Haomin JIANG, Pijun ZHANG
  • Publication number: 20180347051
    Abstract: Provided are a chromium-free surface-treated tinplate, a production method and a surface treating agent thereof. By coating, on the surface of a tinplate, an environmentally friendly aqueous surface treating agent containing 0.1-5 wt % of a zinc salt, 0.1-5 wt % of a zirconium salt and/or a molybdenum salt and 5-30 wt % of siloxane or polysiloxane, a layer of chromium-free passivation film having uniform and dense ingredients and a good performance and being stable is formed on the surface of a tin layer. The passivation film contains 0.1-20 mg/m2 of zinc, 0.1-20 mg/m2 of zirconium and/or molybdenum and 0.5-100 mg/m2 silicon. The passivation film can impart an excellent surface stability, corrosion resistance and paint film adhesion performance to the surface of the tinplate; in addition, contact with food is safe.
    Type: Application
    Filed: November 29, 2016
    Publication date: December 6, 2018
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Peng LI, Renyun YAN, Junsheng WEI, Binghu LI
  • Patent number: 10100385
    Abstract: A high-formability, super-high-strength, hot-dip galvanized steel plate, the chemical composition of which comprises, based on weight percentage, C: 0.15-0.25 wt %, Si: 1.00-2.00 wt %, Mn: 1.50-3.00 wt %, P?0.015 wt %, S?0.012 wt %, Al: 0.03-0.06 wt %, N?0.008 wt %, and the balance of iron and unavoidable impurities. The room temperature structure of the steel plate comprises 10-30% ferrite, 60-80% martensite and 5-15% residual austenite. The steel plate has a yield strength of 600-900 MPa, a tensile strength of 980-1200 MPa, and an elongation of 15-22%. Through an appropriate composition design, a super-high-strength, cold rolled, hot-dip galvanized steel plate is manufactured by continuous annealing, wherein no expensive alloy elements are added; instead, remarkable increase of strength along with good plasticity can be realized just by appropriate augment of Si, Mn contents in combination with suitable processes of annealing and furnace atmosphere control.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: October 16, 2018
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Yong Zhong, Li Wang, Weijun Feng, Liyang Zhang
  • Patent number: 10093999
    Abstract: The invention discloses a steel plate resistant to zinc-induced crack and a manufacturing method therefor. A low-alloy steel subjected to low C-ultra low Si-high Mn-low Al—(Ti+Nb) microalloying treatment is taken as a basis; the Al content in the steel is appropriately reduced; the conditions are controlled so that Mn/C?15, [(% Mn)+0.75(% Mo)]×(% C)?0.16, Nb/Ti?1.8 and Ti/N is between 1.50 and 3.40, CEZ?0.44% and the B content is ?2 ppm, Ni/Cu?1.50; a Ca treatment is performed and the Ca/S ratio is controlled between 1.0 and 3.0, with (% Ca)×(% S)0.28?1.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: October 9, 2018
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Zicheng Liu, Yong Wu, Xianju Li
  • Patent number: 10092948
    Abstract: The invention provides a fluoride-free continuous casting mold flux for low-carbon steel, comprising, based on weight, Na2O 5-10%, MgO 3-10%, MnO 3-10%, B2O3 3-10%, Al2O3?6%, Li2O<3%, C 1-3%, and the balance of CaO and SiO2 as well as inevitable impurities, wherein the ratio of CaO/SiO2 is 0.8˜1.3. The mold flux has a melting point of 95˜1150° C., a viscosity at 1300° C. of 0.1-0.3 Pa·s, and a crystallization rate of 10-50% as determined according to the method described in the specification for examining crystallization property. The boron-containing, fluoride-free flux developed according to the invention has a moderate crystallization rate, can be used in a crystallizer to control transfer of heat from molten steel effectively, and has been applied successfully in a low-carbon steel slab conticaster with a metallurgical effect that arrives at the level of a traditional fluoride-containing flux to full extent.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: October 9, 2018
    Assignee: Baoshan Iron & Steel Co. LTD
    Inventors: Chen Zhang, Dexiang Cai, Jianguo Shen, Feng Mei
  • Patent number: 10096415
    Abstract: Disclosed are a non-oriented electrical steel plate with low iron loss and high magnetic conductivity and a manufacturing process therefor. The casting blank of the steel plate comprises the following components: Si: 0.1-2.0 wt %, Al: 0.1-1.0 wt %, Mn: 0.10-1.0 wt %, C: ?0.005 wt %, P: ?0.2 wt %, S: ?0.005 wt %, N: ?0.005 wt %, the balance being Fe and unavoidable impurities. The magnetic conductivity of the steel plate meets the following relationship formula: ?10+?13+?15?13982?586.5P15/50; ?10+?13+?15?10000, wherein P15/50 is the iron loss at a magnetic induction intensity of 1.5 T at 50 Hz; ?10, ?13, and ?15 is are relative magnetic conductivities at induction intensities of 1.0 T, 1.3 T, and 1.5 T at 50 Hz, respectively. The steel plate can be used for manufacturing highly effective and ultra-highly effective electric motors.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: October 9, 2018
    Assignee: BAOSHAN IRON & STEEL CO., LTD
    Inventors: Aihua Ma, Bo Wang, Xiandong Liu, Liang Zou, Shishu Xie, Hongxu Hei
  • Patent number: 10094011
    Abstract: The present invention discloses a superstrength cold rolled weathering steel sheet, wherein the weight percentage of the chemical elements thereof are as follows: C: 0.05˜0.16%; Mn: 1.00˜2.20%; Al: 0.02˜0.06%; Cu: 0.20˜0.40%; Cr: 0.40˜0.60%; Ti: 0.015˜0.035%; P: less than 0.03%; and C+Mn/16 is more than 0.19% and less than 0.23%; the remainders thereof being Fe and other unavoidable impurities. The present invention also discloses a method of manufacturing said superstrength cold rolled weathering steel sheet, comprising the following stages: smelting, heating and preservation, hot rolling, coiling, pickling, cold rolling, continuous annealing and skin passing. The advantages of the superstrength cold rolled weathering steel sheet and the method of manufacturing the same are: high strength, i.e.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: October 9, 2018
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Yong Zhong, Li Wang, Weijun Feng, Xiaoming He, Junjie Huang, Yanglin Ke
  • Publication number: 20180282850
    Abstract: Disclosed are a system and method for controlling a thickness of a hot-dip galvanized coating on a strip material with a continuously varying thickness.
    Type: Application
    Filed: March 29, 2016
    Publication date: October 4, 2018
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Fei XIONG, Shanqing LI, Zhenglian JIANG, Jianghua XU
  • Publication number: 20180265942
    Abstract: A bulletproof steel plate with a tensile strength of 2000 MPa grade and a Brinell Hardness of 600 grade and a manufacturing method thereof, characterized by that the chemical elements in mass percentage thereof being: 0.35-0.45% of C, 0.80-1.60% of Si, 0.3-1.0% of Mn, 0.02-0.06% of Al, 0.3-1.2% of Ni, 0.30-1.00% of Cr, 0.20-0.80% of Mo, 0.20-0.60% of Cu, 0.01-0.05% of Ti, 0.001-0.003% of B, and the balance being Fe and inevitable impurities. The tensile strength of the steel plate can reach a grade of 2000 MPa and its Brinell Hardness can reach a grade of 600.
    Type: Application
    Filed: August 25, 2016
    Publication date: September 20, 2018
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Xiaoting ZHAO, Fengbin LI, Liandeng YAI, Hongbin LI
  • Publication number: 20180257176
    Abstract: The present invention provides a system for enabling synchronous sheet transfer to follow laser cutting dynamically. A laser-cutting method for the system for enabling synchronous sheet transfer to follow laser cutting dynamically is also provided. With the system and method of the present invention, dynamic following of sets of magnetic belts during the cutting procedure is implemented, thereby accelerating the processing pace, and further improving the throughput.
    Type: Application
    Filed: March 29, 2016
    Publication date: September 13, 2018
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Ruimin WU, Saidan YANG, Zhaodong LIANG, Ye DING
  • Publication number: 20180258507
    Abstract: A steel plate having excellent resistance to fatigue crack growth and manufacturing method thereof, wherein the components of the steel plate in weight percentage are: 0.040-0.070% of C, 0.40-0.70% of Si, 1.30-1.60% of Mn, less than or equal to 0.013% of P, less than or equal to 0.003% of S, less than or equal to 0.30% of Cu, less than or equal to 0.30% of Ni, less than or equal to 0.10% of Mo, 0.008-0.018% of Ti, 0.015-0.030% of Nb, less than or equal to 0.0040% of N, 0.0010-0.0040% of Ca, and the balance being Fe and inevitable impurities. By controlling [% C]×[% Si] between 0.022-0.042, {([% C]+3.33[% Nb])×[% Si]}×Vcooling rate/Tcooling-stopping between 1.15×10?4˜2.2×10?3, carrying out a Ca treatment, and Ca/S=1.0-3.0 and (% Ca)×(% S) 0.28?1.0×10?3, the optimizing the TMCP process, the finished steel plate has a microstructure which a duplex-phase structure of ferrite+uniformly and dispersedly distributed bainite and has an improved resistance to fatigue crack growth.
    Type: Application
    Filed: November 4, 2015
    Publication date: September 13, 2018
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Zicheng Liu, Qing Shi
  • Publication number: 20180245175
    Abstract: An aluminium-zinc-hot-dipped and colour-coated steel plate having a 500 MPa yield strength grade and a high elongation and a manufacturing method thereof, with the chemical components in mass percentage of a substrate of the steel plate being: 0.07-0.15% of C, 0.02-0.5% of Si, 1.3-1.8% of Mn, N?0.004%, S?0.01%, Ti?0.15%, Nb?0.050%, and the balance being Fe and other inevitable impurities, and meanwhile satisfying the conditions of: (C+Mn/6)?0.3%; Mn/S?150; Nb satisfying 0.01%?(Nb-0.22C-1.1N)?0.05% where no Ti is contained; Ti satisfying 0.5?Ti/C?1.5 where no Nb is contained; and 0.04%?(Ti+Nb)?0.2% where Ti and Nb are added in combination. The steel plate has a yield strength of ?500 MPa, a tensile strength of ?550 MPa, an elongation after fracture of ?15%, a good strength and toughness and an excellent corrosion resistance.
    Type: Application
    Filed: July 25, 2016
    Publication date: August 30, 2018
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Jun LI, Dechao XU, Xin LIU, Zhilong DING, Yuling REN, Xuewei YE, Hengfa HU, Hongming CHEN
  • Publication number: 20180245176
    Abstract: An aluminium-zinc-hot-dipped and colour-coated steel plate having a 600 MPa yield strength grade and a high elongation and a manufacturing method thereof, with the chemical components in mass percentage of a substrate of the steel plate being: 0.07-0.15% of C, 0.02-0.5% of Si, 1.3-1.8% of Mn, N?0.004%, S?0.01%, Ti?0.20%, Nb?0.060%, and the balance being Fe and other inevitable impurities, and meanwhile satisfying the conditions of: (C+Mn/6)?0.3%; Mn/S?150; Nb satisfying 0.01%?(Nb-0.22C-1.1N)?0.06% where no Ti is contained; Ti satisfying 0.5?Ti/C?1.5 where no Nb is contained; and 0.04%?(Ti+Nb)?0.26% where Ti and Nb are added in combination. The steel plate has a yield strength of ?600 MPa, a tensile strength of ?650 MPa, an elongation after fracture of ?12%, a good strength and toughness and an excellent corrosion resistance.
    Type: Application
    Filed: July 25, 2016
    Publication date: August 30, 2018
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Jun LI, Dechao XU, Hailing MU, Yusheng ZHAO, Yun-feng LIU
  • Publication number: 20180243862
    Abstract: Provided are a method and a system for enabling magnetic belts to follow laser-cutting dynamically to achieve flexible designs and facilitating processing.
    Type: Application
    Filed: March 29, 2016
    Publication date: August 30, 2018
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Saidan YANG, Ruimin WU, Junliang QIAO, Ye DING
  • Publication number: 20180200768
    Abstract: Disclosed are an automatic shearing apparatus for a cold-rolled plate of variable thickness, and a shearing method using the apparatus. The method comprises that: a thickness gauge (4) and a length-measuring device (3) are successively arranged in front of shears (5); and a control device identifies the profile of a strip material passing through the thickness gauge (4) according to length tracing data and measured thickness values, and determines the position of the strip material at the shears (5), simultaneously compares the profile with the set profile of a plate of continuously variable thickness, and decides the action time of the shears. The apparatus and the method can efficiently and accurately shear rolls of supplied materials of continuously variable thickness into plates of continuously variable thickness which can be directly used by a user.
    Type: Application
    Filed: March 29, 2016
    Publication date: July 19, 2018
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Fei Xiong, Shanqing Li, Zhenglian Jiang
  • Patent number: 10023928
    Abstract: A 700 Mpa-level high-strength hot rolling Q&P steel and the method of manufacturing the same, which steel has the chemical compositions in weight percentage as follows: C: 0.15%˜0.40%; Si: 1.0%˜2.0%; Mn: 1.5%˜3.0%; P: less than or equal to 0.015%; S: less than or equal to 0.005%; Al: 0.3%˜1.0%; N: less than or equal to 0.006%; Ti: 0.005%˜0.015%, the remainders being Fe; it having a yield strength of more than or equal to 700 Mpa, a tensile strength of more than or equal to 1300 Mpa and an elongation rate of more than 10%.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: July 17, 2018
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Huanrong Wang, Zigang Li, Wei Wang, Jiansu Zhang, Jianye Li