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    A PRESS HARDENING METHOD
    1.
    发明申请
    A PRESS HARDENING METHOD 审中-公开

    公开(公告)号：WO2021084379A1

    公开(公告)日：2021-05-06

    申请号：PCT/IB2020/059842

    申请日：2020-10-20

    申请人： ARCELORMITTAL

    发明人： GRIGORIEVA, Raisa ,  DUMINICA, Florin ,  NABI, Brahim ,  DRILLET, Pascal ,  STUREL, Thierry

    IPC分类号： C21D8/04 ,  B32B15/00 ,  C21D8/02 ,  C21D9/48 ,  C23C2/00 ,  C23C2/04 ,  C23C2/12 ,  C21D1/74 ,  C23C2/28 ,  C23C2/40 ,  C23C28/00 ,  C23C2/02 ,  C23C2/06 ,  C23C2/26 ,  C23C14/58 ,  C23C16/54 ,  C23C28/02 ,  C21D9/46 ,  C22C38/00

    摘要： The present invention relates a press hardening method comprising the following steps: A. the provision of a steel sheet for heat treatment being optionally coated with a zinc- or aluminum-based pre-coating, B. the flexible rolling of the steel sheet in the rolling direction so as to obtain a steel sheet having a variable thickness, C. the cutting of the rolled steel sheet to obtain a tailored rolled blank, D. the deposition of a hydrogen barrier pre-coating over a thickness from 10 to 550 nm, E. the heat treatment of the tailored rolled blank to obtain a fully austenitic microstructure in the steel, F. the transfer of the tailored rolled blank into a press tool, G. the hot-forming of the tailored rolled blank to obtain a part having a variable thickness, H. the cooling of the part having a variable thickness obtained at step G) to obtain a microstructure in steel being martensitic or martensito-bainitic or made of at least 75% in terms of volume fraction of equiaxed ferrite, from 5 to 20% in volume of martensite and of bainite in amount less than or equal to 10% in volume.

    A PRESS HARDENING METHOD
    2.
    发明申请
    A PRESS HARDENING METHOD 审中-公开

    公开(公告)号：WO2021084378A1

    公开(公告)日：2021-05-06

    申请号：PCT/IB2020/059841

    申请日：2020-10-20

    申请人： ARCELORMITTAL

    发明人： GRIGORIEVA, Raisa ,  DUMINICA, Florin ,  NABI, Brahim ,  DRILLET, Pascal ,  STUREL, Thierry

    IPC分类号： C21D8/04 ,  B32B15/00 ,  C21D8/02 ,  C21D9/48 ,  C23C2/00 ,  C23C2/04 ,  C23C2/12 ,  C21D1/74 ,  C23C2/28 ,  C23C2/40 ,  C23C28/00 ,  C23C2/02 ,  C23C2/06 ,  C23C2/26 ,  C23C14/58 ,  C23C16/54 ,  C23C28/02 ,  C21D9/46 ,  C22C38/00

    摘要： The present invention relates a press hardening method comprising the following steps: A. the provision of a steel sheet for heat treatment, being optionally precoated with a zinc- or aluminum-based pre-coating, B. The deposition of a hydrogen barrier pre-coating comprising chromium and not comprising nickel over a thickness from 10 to 550 nm, C. the cutting of the precoated steel sheet to obtain a blank, D. the heat treatment of the blank at a furnace temperature from 800 to 970°C, during a dwell time from 1 to 12 minutes, in an atmosphere having an oxidizing power equal or higher than that of an atmosphere consisting of 1 % by volume of oxygen and equal or smaller than that of an atmosphere consisting of 50% by volume of oxygen, such atmosphere having a dew point between -30 and +30°C, E. the transfer of the blank into a press tool, F. the hot-forming of the blank at a temperature from 600 to 830°C to obtain a part, G. the cooling of the part obtained at step E) to obtain a microstructure in steel being martensitic or martensito-bainitic or made of at least 75 % in terms of volume fraction of equiaxed ferrite, from 5 to 20 % in volume of martensite and bainite in amount less than or equal to 10 % in volume.

    A PRESS HARDENING METHOD
    3.
    发明申请
    A PRESS HARDENING METHOD 审中-公开

    公开(公告)号：WO2021084377A1

    公开(公告)日：2021-05-06

    申请号：PCT/IB2020/059838

    申请日：2020-10-20

    申请人： ARCELORMITTAL

    发明人： GRIGORIEVA, Raisa ,  DUMINICA, Florin ,  NABI, Brahim ,  DRILLET, Pascal ,  STUREL, Thierry

    IPC分类号： C21D8/04 ,  B32B15/00 ,  C21D8/02 ,  C21D9/48 ,  C23C2/00 ,  C23C2/04 ,  C23C2/12 ,  C21D1/74 ,  C23C2/28 ,  C23C2/40 ,  C23C28/00

    摘要： The present invention relates a press hardening method comprises the following steps: A. the provision of a steel sheet for heat treatment, precoated with a zinc- or aluminum-based pre-coating for anti-corrosion purpose, B. the deposition of a hydrogen barrier pre-coating over a thickness from 10 to 550 nm, C. the batch annealing of the precoated steel sheet in an inert atmosphere to obtain a pre-alloyed steel sheet, D. the cutting of the pre-alloyed steel sheet to obtain blank, E. the thermal treatment of the blank to obtain a fully austenitic microstructure in the steel, F. the transfer of the blank into a press tool, G. the hot-forming of the blank to obtain a part, H. the cooling of the part obtained at step G) in order to obtain a microstructure in steel being martensitic or martensito-bainitic or made of at least 75 % in terms of volume fraction of equiaxed ferrite, from 5 to 20 % in volume of martensite and bainite in amount less than or equal to 10 % in volume.

    A PRESS HARDENING METHOD
    4.
    发明申请
    A PRESS HARDENING METHOD 审中-公开

    公开(公告)号：WO2021084376A1

    公开(公告)日：2021-05-06

    申请号：PCT/IB2020/059837

    申请日：2020-10-20

    申请人： ARCELORMITTAL

    发明人： GRIGORIEVA, Raisa ,  DUMINICA, Florin ,  NABI, Brahim ,  DRILLET, Pascal ,  STUREL, Thierry

    IPC分类号： C21D8/04 ,  B32B15/00 ,  C21D8/02 ,  C21D9/48 ,  C23C2/00 ,  C23C2/04 ,  C23C2/12 ,  C21D1/74 ,  C23C2/28 ,  C23C2/40 ,  C23C28/00

    摘要： The present invention relates a press hardening method comprises the following steps: A. The provision of a steel sheet for heat-treatment, precoated with a zinc- or aluminum-based pre-coating, B. the deposition of a hydrogen barrier pre-coating over a thickness from 10 to 550 nm, and comprising at least one element chosen from among: nickel, chromium, magnesium, aluminum and yttrium, C. the batch annealing of the precoated steel sheet to obtain a pre-alloyed steel sheet, the cooling after the batch annealing being performed at a speed of 29.0 °C.h-1 or less, D. the cutting of the pre-alloyed steel sheet to obtain blank, E. the thermal treatment of the blank to obtain a fully austenitic microstructure in the steel, F. the transfer of the blank into a press tool, G. the hot-forming of the blank to obtain a part, H. the cooling of the part obtained at step G) in order to obtain a microstructure in steel being martensitic or martensito-bainitic or made of at least 75% in terms of volume fraction of equiaxed ferrite, from 5 to 20% in volume of martensite and of bainite in amount less than or equal to 10% in volume.

    VERFAHREN ZUR VERZINKUNG, INSBESONDERE FEUERVERZINKUNG, VON EISEN- UND STAHLERZEUGNISSEN
    5.
    发明申请
    VERFAHREN ZUR VERZINKUNG, INSBESONDERE FEUERVERZINKUNG, VON EISEN- UND STAHLERZEUGNISSEN 审中-公开

    公开(公告)号：WO2020173586A1

    公开(公告)日：2020-09-03

    申请号：PCT/EP2019/080721

    申请日：2019-11-08

    申请人： FONTAINE HOLDINGS NV

    发明人： PINGER, Thomas ,  BAUMGÜRTEL, Lars

    IPC分类号： C23C2/00 ,  C23C2/04 ,  C23C2/06

    摘要： Die vorliegende Erfindung betrifft ein Verfahren zur Erzeugung einer aluminiumlegierten (aluminiumhaltigen) Zinkschicht, insbesondere mit erhöhter Schichtdicke, auf einem eisenbasierten Bauteil, vorzugsweise Stahlbauteil, mittels Feuerverzinkung (Schmelztauchverzinkung), insbesondere ein Verfahren zur Erhöhung und/oder Einstellung, vorzugsweise Erhöhung, der Schichtdicke einer mittels Feuerverzinkung erzeugten aluminiumlegierten (aluminiumhaltigen) Zinkschicht auf einem eisenbasierten Bauteil, sowie ein auf diese Weise erhältliches, mit einer aluminiumlegierten (aluminiumhaltigen) Zinkschicht versehenes Bauteil und dessen jeweilige Verwendung.

    방전가공용 전극선 및 그 제조방법
    6.
    发明申请
    방전가공용 전극선 및 그 제조방법 审中-公开

    公开(公告)号：WO2020091130A1

    公开(公告)日：2020-05-07

    申请号：PCT/KR2018/014023

    申请日：2018-11-15

    申请人： 주식회사 풍국

    发明人： 황장익 ,  임종국 ,  이재창 ,  장해섭

    IPC分类号： B23H7/08 ,  B23H1/06 ,  C25D5/50 ,  C25D5/12 ,  C23C2/28 ,  C23C2/04

    摘要： 본 발명은 방전가공용 전극선 및 그 제조방법에 관한 것이다. 상기 전극선은 심선 표면에 피복층이 형성된 구조이고, 피복층은 니켈과 아연의 합금층인 것을 특징으로 한다. 상기 피복층의 형성은 심선 표면에 니켈 층을 형성하는 단계; 상기 니켈 표면에 아연 층을 형성하는 단계; 및 확산 열처리를 통해 니켈과 아연의 합금층을 형성하는 단계;를 통해 수행될 수 있다. 본 발명의 전극선 및 그 제조방법은, 아연 층 형성 전단계에서 고융점 고경도의 니켈 층을 형성한 후 확산열처리하여 결합이 치밀한 니켈-아연 합금층을 심선 표면에 형성함으로써, 방전가공시 발생하는 높은 열에 견딜수 있고 인가전압을 높일 수 있으며, 플러싱 효과의 향상 그리고 표면 경화로 자동결선율 향상과 금형 표면을 깨끗하게 유지할 수 있는 기능을 향상시킬 수 있다.

    DIFFUSING TITANIUM AND NITRIDE INTO COATED MATERIALS
    9.
    发明申请
    DIFFUSING TITANIUM AND NITRIDE INTO COATED MATERIALS 审中-公开
    将钛和硝酸盐分散成涂层材料

    公开(公告)号：WO2007121157A3

    公开(公告)日：2007-12-13

    申请号：PCT/US2007066291

    申请日：2007-04-10

    申请人： PHILOS JONGHO KO ,  BONGSUB SAMUEL KO

    发明人： PHILOS JONGHO KO ,  BONGSUB SAMUEL KO

    IPC分类号： B32B5/14 ,  B05D1/18 ,  B05D3/02 ,  B05D3/10 ,  B32B15/04 ,  C23C2/00 ,  C23C2/04 ,  C23C2/26 ,  C23C12/00 ,  C23C12/02

    CPC分类号： C23C12/02 ,  C23C10/26 ,  Y10T428/12806

    摘要： A method for diffusing titanium and nitride into a base material having a coating thereon using conventional surface treatments or coatings. The method generally includes the steps of providing a base material having a coating thereon; providing a salt bath which includes sodium dioxide and a salt selected from the group consisting of sodium cyanate and potassium cyanate; dispersing metallic titanium formed by electrolysis of a titanium compound in the bath; heating the salt bath to a temperature ranging from about 43O°C to about 67O°C; and soaking the base material in the salt bath for a time of from about 10 minutes to about 24 hours. In accordance with another aspect of the present invention, titanium and nitride may be diffused into a base material without a coating. The treated base material may further be treated with conventional surface treatments or coatings.

    摘要翻译： 一种使用常规表面处理或涂层将钛和氮化物扩散到其上具有涂层的基材的方法。 该方法通常包括提供其上具有涂层的基材的步骤; 提供包含二氧化钠和选自氰酸钠和氰酸钾的盐的盐浴; 将通过电解钛化合物形成的金属钛分散在浴中; 将盐浴加热至约43℃至约67℃的温度; 并将基材在盐浴中浸泡约10分钟至约24小时。 根据本发明的另一方面，钛和氮化物可以不涂覆而扩散到基材中。 经处理的基材可以进一步用常规的表面处理或涂层处理。

    METHOD FOR COATING A METAL SURFACE WITH AN ULTRAFINE LAYER
    10.
    发明申请
    METHOD FOR COATING A METAL SURFACE WITH AN ULTRAFINE LAYER 审中-公开
    涂覆具有超细层的金属表面的方法

    公开(公告)号：WO2005059196A3

    公开(公告)日：2005-09-09

    申请号：PCT/BE2004000157

    申请日：2004-11-02

    申请人： CT RECH METALLURGIQUES ASBL ,  LE CRAZ SEBASTIEN

    发明人： LE CRAZ SEBASTIEN

    IPC分类号： C23C2/02 ,  C23C2/04 ,  C23C2/26 ,  C23C24/00 ,  C23C24/08 ,  C23C26/00

    CPC分类号： C09D1/00 ,  C23C2/02 ,  C23C2/04 ,  C23C2/26 ,  C23C24/00 ,  C23C24/08 ,  C23C26/00 ,  Y10T428/1314 ,  Y10T428/24967 ,  Y10T428/265 ,  Y10T428/266 ,  Y10T428/2958

    摘要： The invention concerns a method for continuously coating a moving substrate such as a steel metal strip, the coating formed being an ultrafine film of thickness ranging between 10 and 100 nm, deposited on the substrate: from a solution containing oxide nanoparticles, under controlled pH conditions, said substrate being at a temperature higher than 120 DEG C, the total duration of deposition being less than 5 seconds, and preferably less than 1 second. The invention is characterized in that at least one chemical additive, called refiner, is incorporated in said solution, said refiner having, reciprocally, an antagonistic effect relative to the formation of said coating.

    摘要翻译： 本发明涉及一种用于连续涂覆移动的基材例如钢金属条的方法，所述涂层形成为厚度为10-100nm的超细膜，其在受控的pH条件下沉积在基材上：由含有氧化物纳米粒子的溶液 ，所述基材的温度高于120℃，总沉积时间小于5秒，优选小于1秒。 本发明的特征在于，在所述溶液中加入至少一种称为磨浆机的化学添加剂，所述磨浆机相对于所述涂层的形成具有相反的拮抗作用。