Patents by Inventor Huanrong Wang

Huanrong Wang 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: 20230323500
    Abstract: A 780 MPa-grade ultra-high reaming steel having high surface quality and high performance stability, and a manufacturing method therefor. The ultra-high reaming steel comprises the following components in percentage by weight: 0.03-0.08% of C, Si?0.2%, 0.5-2.0% of Mn, P?0.02%, S?0.003%, 0.01-0.08% of Al, N?0.004%, 0.05-0.20% of Ti, 0.1-0.5% of Mo, Mg?0.005%, O?0.0030%, and the remainder being Fe and other inevitable impurities.
    Type: Application
    Filed: August 30, 2021
    Publication date: October 12, 2023
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Huanrong WANG, Feng YANG, Chen ZHANG, Ana YANG, Mingzhou BAI, Yaping NI, Ming WANG
  • Publication number: 20230323502
    Abstract: A 980 MPa-grade full-bainite ultra-high hole expansion steel and a manufacturing method therefor. The hole expansion steel has the following chemical compositions in percentage by weight: 0.05-0.10% of C, Si?2.0%, 1.0-2.0% of Mn, P?0.02%, S?0.003%, 0.02-0.08% of Al, N?0.004%, 0.1-0.5% of Mo, 0.01-0.05% of Ti, O?0.0030%, the remainder being Fe, and other inevitable impurities. The ultra-high hole expansion steel in the present invention has yield strength ?800 MPa, tensile strength ?980 MPa, and a hole expansion rate up to 60% or more, and can be applied in the parts of chassis components such as a control arm and an auxiliary frame, which require high strength thinning and complex forming, of passenger vehicles.
    Type: Application
    Filed: August 30, 2021
    Publication date: October 12, 2023
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Huanrong WANG, Feng YANG, Chen ZHANG, Ana YANG, Yaping NI
  • Publication number: 20230313333
    Abstract: Disclosed are a 980 MPa-grade bainite high hole expansion steel and a manufacturing method therefor. The steel contains the following chemical components in percentages by weight: 0.05-0.10% of C, 0.5-2.0% of Si, 1.0-2.0% of Mn, P?0.02%, S?0.003%, 0.02-0.08% of Al, N?0.004%, Mo?0.1%, 0.01-0.05% of Ti, Cr?0.5%, B?0.002%, O?0.0030%, and the balance of Fe and other inevitable impurities. The high hole expansion steel of the present invention has a yield strength of ?800 MPa and a tensile strength of ?980 MPa, has a good elongation rate (the transverse A50 being ?11%) and hole expansion performance (the hole expansion ratio being ?40%), and can be applied to a position on a chassis part of a passenger car, such as a control arm and a vice frame, where high strength and thinning are required.
    Type: Application
    Filed: August 30, 2021
    Publication date: October 5, 2023
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Huanrong WANG, Feng YANG, Chen ZHANG, Ana YANG
  • Publication number: 20230313332
    Abstract: A low-carbon martensitic high hole expansion steel with a tensile strength above 980 MPa, and a manufacturing method therefor, the weight percentage of the chemical components thereof being: C 0.03-0.10%, Si 0.5-2.0%, Mn 1.0-2.0%, P?0.02%, S?0.003%, Al 0.02-0.08%, N?0.004%, Mo 0.1-0.5%, Ti 0.01-0.05%, and O?0.0030%, and the remainder being Fe and other inevitable impurities. The high hole expansion steel of the present invention has a yield strength of ?800 MPa and tensile strength of ?980 MPa, a lateral extension rate A50?8%, and a hole expansion ratio of ?30%, passes cold bending performance tests (d?4a, 180°), and can be used for passenger car chassis parts that require high strength and thinning such as control arms and sub-frames.
    Type: Application
    Filed: August 30, 2021
    Publication date: October 5, 2023
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Huanrong WANG, Feng YANG, Chen ZHANG, Ana YANG, Yaping NI, Ming WANG, Mingzhou BAI
  • Publication number: 20230304121
    Abstract: A 980 MPa-grade ultra-low-carbon martensite and retained austenite ultra-high hole expansion steel and a manufacturing method therefor. The hole expansion steel comprises the following chemical components in percentage by weight: C 0.03%-0.06%, Si 0.8%-2.0%, Mn 1.0%-2.0%, P?0.02%, S?0.003%, Al 0.02%-0.08%, N?0.004%, Mo 0.1%-0.5%, Ti 0.01%-0.05%, and O?0.0030%. The high hole expansion steel of the present invention has the yield strength ?800 MPa, the tensile strength ?980 MPa, the elongation rate (horizontal A50?10%), the cold bending property (d?4a, 180°), and the hole expansion ratio ?80%, and can be applied to a chassis part of a passenger vehicle such as a control arm, an auxiliary frame and other parts that require high-strength thinning.
    Type: Application
    Filed: August 30, 2021
    Publication date: September 28, 2023
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Huanrong WANG, Chen ZHANG, Feng YANG, Ana YANG
  • Patent number: 11319607
    Abstract: Disclosed are a high-strength and high-toughness steel plate with an 800 MPa grade tensile strength and a method for manufacturing the same, the chemical composition of the steel plate in weight percentage being: C: 0.15-0.25%, Si: 1.0-2.0%, Mn: 1.2-2.0%, P?0.015%, S?0.005%, Al: 0.5-1.0%, N: ?0.006%, Nb: 0.02-0.06%, O?0.003%, and the balance being Fe and other inevitable impurities, and 1.5%?Si+Al?2.5%. By adopting an isothermal heat treatment a high-strength and high-toughness steel plate with an 800 MPa grade tensile strength, which has a microstructure mainly including bainite ferrite and residual austenite, is obtained impact energy.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: May 3, 2022
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Huanrong Wang, Ana Yang, Wei Wang
  • Patent number: 11268163
    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: Grant
    Filed: June 19, 2017
    Date of Patent: March 8, 2022
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Huanrong Wang, Ana Yang, Jiansu Zhang, Wei Wang
  • Patent number: 11220724
    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: Grant
    Filed: June 19, 2017
    Date of Patent: January 11, 2022
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Huanrong Wang, Ana Yang, Jiansu Zhang, Wei Wang
  • Patent number: 11180822
    Abstract: Disclosed is provided a low yield ratio and superhigh-strength hot-rolled Q&P steel and a method for manufacturing the same, having the following chemical composition in weight percentage: C: 0.2-0.3%, Si: 1.0-2.0%, Mn: 1.5-2.5%, P: ?0.015%, S: ?0.005%, Al: 0.5-1.0%, N: ?0.006%, Nb: 0.02-0.06%, Ti: ?0.03%, O: ?0.003%, and the balance being Fe and inevitable impurities. The manufacture method comprises a stepped cooling process to finally obtain the steel with a three-phase structure containing a certain volume fraction of proeutectoid ferrite; martensite; and residual austenite, and having an excellent comprehensive performance with a yield strength of ?600 MPa, a tensile strength of ?1300 MPa, a good elongation, and a low yield ratio. The obtained Q&P steel also shows an excellent match of high plasticity suitable for easy deformabilities and wear-resistances.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: November 23, 2021
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Huanrong Wang, Ana Yang, Wei Wang
  • Patent number: 10378073
    Abstract: A high-toughness hot-rolled high-strength steel with a yield strength of Grade 800 MPa with its chemical components, in weight percentages, being C 0.02-0.05%, Si?0.5%, Mn 1.5-2.5%, P?0.015%, S?0.005%, Al 0.02-0.10%, N?0.006%, Nb 0.01-0.05%, Ti 0.01-0.03%, 0.03%?Nb+Ti?0.06%, Cr 0.1%-0.5%, Mo 0.1-0.5%, B 0.0005-0.0025%, and the balance of Fe and unavoidable impurities, and a preparation method thereof. The present invention acquires, via direct quenching, an ultra-low carbon martensite structure with a yield strength of 800 Mpa and an impact energy of more than 100J under a temperature of ?80° C.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: August 13, 2019
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Huanrong Wang, A'na Yang, Wei Wang
  • 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: 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: 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
  • Publication number: 20170349960
    Abstract: Disclosed are a high-strength and high-toughness steel plate with an 800 MPa grade tensile strength and a method for manufacturing the same, the chemical composition of the steel plate in weight percentage being: C: 0.15-0.25%, Si: 1.0-2.0%, Mn: 1.2-2.0%, P?0.015%, S?0.005%, Al: 0.5-1.0%, N: ?0.006%, Nb: 0.02-0.06%, O?0.003%, and the balance being Fe and other inevitable impurities, and 1.5%?Si+Al?2.5%. By adopting an isothermal heat treatment a high-strength and high-toughness steel plate with an 800 MPa grade tensile strength, which has a microstructure mainly including bainite ferrite and residual austenite, is obtained impact energy.
    Type: Application
    Filed: November 24, 2015
    Publication date: December 7, 2017
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Huanrong Wang, Ana Yang, Wei Wang
  • Publication number: 20170342523
    Abstract: Disclosed is a low yield ratio and superhigh-strength hot-rolled Q&P steel and a method for manufacturing the same, having the following chemical composition in weight percentage: C: 0.2-0.3%, Si: 1.0-2.0%, Mn: 1.5-2.5%, P: ?0.015%, S: ?0.005%, Al: 0.5-1.0%, N: ?0.006%, Nb: 0.02-0.06%, Ti: ?0.03%, O: ?0.003%, and the balance being Fe and inevitable impurities. The manufacture method comprises stepped cooling process to finally obtain a three-phase structure containing a certain volume fraction of proeutectoid ferrite+a certain volume fraction of martensite+a certain volume fraction of residual austenite.
    Type: Application
    Filed: November 24, 2015
    Publication date: November 30, 2017
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Huanrong Wang, Ana Yang, Wei Wang
  • Publication number: 20170275719
    Abstract: A high-toughness hot-rolled high-strength steel with a yield strength of Grade 800 MPa with its chemical components, in weight percentages, being C 0.02-0.05%, Si?0.5%, Mn 1.5-2.5%, P?0.015%, S?0.005%, Al 0.02-0.10%, N?0.006%, Nb 0.01-0.05%, Ti 0.01-0.03%, 0.03%?Nb+Ti?0.06%, Cr 0.1%-0.5%, Mo 0.1-0.5%, B 0.0005-0.0025%, and the balance of Fe and unavoidable impurities, and a preparation method thereof. The present invention acquires, via direct quenching, an ultra-low carbon martensite structure with a yield strength of 800 Mpa and an impact energy of more than 100J under a temperature of ?80° C.
    Type: Application
    Filed: January 15, 2015
    Publication date: September 28, 2017
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Huanrong WANG, A'na YANG, Wei WANG
  • Publication number: 20160017449
    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: Application
    Filed: March 19, 2014
    Publication date: January 21, 2016
    Inventors: Huanrong Wang, Zigang Li, Wei Wang, Jiansu Zhang, Jianye Li