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    열간 프레스 부재의 제조 방법
    1.
    发明公开
    열간 프레스 부재의 제조 방법 审中-公开
    生产热压元件的方法

    公开(公告)号：KR20180021125A

    公开(公告)日：2018-02-28

    申请号：KR20187002274

    申请日：2016-07-05

    Applicant: JFE STEEL CORP

    Inventor： NAKAJIMA SEIJI ,  ANDO SATORU

    IPC: B21D22/20 ,  C23C2/06 ,  C23C2/26 ,  C23C2/40 ,  C25D5/48

    CPC classification number: B21D22/20 ,  B21D22/26 ,  C23C2/06 ,  C23C2/26 ,  C23C2/40 ,  C25D5/48

    Abstract: 대폭적인비용상승을초래하지않고, 균일하고또한양호한표면외관을갖는열간프레스부재를안정적으로제조하는것을가능하게하는, 표면외관이우수한열간프레스부재의제조방법을제공한다. 아연계도금강판을 Ac3 변태점∼ 1000 ℃의 온도범위로가열후, 열간프레스가공, 냉각을실시하는열간프레스부재의제조방법으로서, 가열에앞서, 아연계도금강판에대해표면청정화처리를실시한다. 아연계도금강판을냉간프레스가공후, Ac3 변태점∼ 1000 ℃의 온도범위로가열하고, 냉각을실시하는열간프레스부재의제조방법으로서, 가열에앞서, 아연계도금강판에대해표면청정화처리를실시한다. 아연계도금강판으로는, 10 ∼ 25 질량% 의 Ni 를포함하고, 잔부가 Zn 및불가피적불순물로이루어지고, 편면당의부착량이 10 ∼ 90 g/㎡인 도금층을편면또는양면에갖는 Zn-Ni 합금도금강판인것이바람직하다.

    Abstract translation: 本发明提供一种具有优异的表面外观的热压构件的制造方法，其能够稳定地制造具有均匀且良好的表面外观而不导致成本显着增加的热压构件。 在制造热压构件的方法中，其中在Ac3相变点至1000℃的温度范围内加热镀锌钢板后进行热压和冷却，在镀锌钢板之前对镀锌钢板进行表面纯化处理 加热。 在生产热压构件的方法中，其中在Ac3相变点至1000℃的温度范围内加热镀锌钢板并在冷压镀锌钢板后冷却，对镀锌钢板进行表面纯化 加热前处理。 镀锌钢板优选为含有10〜25质量％的Ni，其余量由Zn和不可避免的杂质构成的镀Zn-Ni合金钢板，并且在一面或两面具有镀层， 每个表面的量为10-90克/平方米。

    STEEL SHEET FOR HOT PRESSING AND METHOD FOR MANUFACTURING HOT-PRESSED MEMBER USING THE SAME
    3.
    发明专利
    STEEL SHEET FOR HOT PRESSING AND METHOD FOR MANUFACTURING HOT-PRESSED MEMBER USING THE SAME 未知

    公开(公告)号：ZA201302948B

    公开(公告)日：2015-09-30

    申请号：ZA201302948

    申请日：2013-04-23

    Applicant: JFE STEEL CORP

    Inventor： MIYOSHI TATSUYA ,  NAKAJIMA SEIJI ,  NAKAMARU HIROKI

    Abstract: A steel sheet for hot pressing that is capable of suppressing formation of scales or ZnO in hot pressing and excellent in oxidation resistance, and a method for manufacturing a hot-pressed member using the steel sheet are provided. The steel sheet for hot pressing includes a base steel sheet and a plating layer that is formed on a surface of the base steel sheet at a coating weight of 10 to 90 g/m 2 and contains 10 to 25% by mass of Ni and the balance Zn with inevitable impurities.

    METHOD FOR MANUFACTURING HOT-PRESSED MEMBERS
    6.
    发明专利
    METHOD FOR MANUFACTURING HOT-PRESSED MEMBERS 未知

    公开(公告)号：MY168717A

    公开(公告)日：2018-11-29

    申请号：MYPI2013002972

    申请日：2012-03-05

    Applicant: JFE STEEL CORP

    Inventor： NAKAJIMA SEIJI ,  MIYOSHI TATSUYA ,  NAKAMARU HIROKI

    Abstract: Provided are a steel sheet to be hot-pressed and a method for manufacturing a hot-pressed member from the steel sheet having not only sufficient resistance to oxidation in order to suppress generation of scale or ZnO during hot pressing but also sufficient resistance to liquid metal brittleness in order to prevent occurrence of liquid metal embrittlement cracking caused by an element in a coated layer. The steel sheet to be hot-pressed has a coated layer the melting point of which is not lower than 800?C and the coating weight of which per side is from 10 to 90 g/m2. Figure 1

    chapa de aço para prensagem a quente e método de produção de peças prensadas a quente usando chapa de aço para prensagem a quente
    8.
    发明专利
    chapa de aço para prensagem a quente e método de produção de peças prensadas a quente usando chapa de aço para prensagem a quente 未知

    公开(公告)号：BR112013002586A2

    公开(公告)日：2016-06-07

    申请号：BR112013002586

    申请日：2011-08-02

    Applicant: JFE STEEL CORP

    Inventor： NAKAMURU HIROKI ,  NAKAJIMA SEIJI ,  MIYOSHI TATSUYA

    IPC: B21D22/20 ,  C22C18/00 ,  C22C19/03 ,  C22C38/00 ,  C22C38/60 ,  C25D5/26

    Abstract: chapa de aço para prensagem a quente e método de produção de peças prensadas a quente usando chapa de aço para prensagem a quente. para fornecer uma chapa de aço para prensagem, a quente a partir da qual uma peça prensada a quente excelente em resistência à corrosão na perfuração é possível de ser obtida e um método de produção de uma peça prensada a quente usando a chapa de aço para prensagem a quente, é fornecida uma chapa de aço para prensagem a quente tendo, sequencialmente, na superfície da chapa de aço base: uma camada de revestimento i contendo 60% em massa ou mais de ni e o restante consistindo em zn e nas inevitáveis impurezas, uma massa de revestimento da mesma sendo 0,01 a 5 g/m^ 2^, e uma camada de revestimento ii contendo 10 a 25% em massa de ni e o restante consistindo em zn e nas inevitáveis impurezas, uma massa de revestimento da mesma sendo 10 a 90 g/m^ 2^.

    HOT-PRESSED MEMBER AND METHOD FOR PRODUCING THE SAME
    10.
    发明专利
    HOT-PRESSED MEMBER AND METHOD FOR PRODUCING THE SAME 未知

    公开(公告)号：CA2778763C

    公开(公告)日：2015-12-29

    申请号：CA2778763

    申请日：2010-10-28

    Applicant: JFE STEEL CORP

    Inventor： NAKAMARU HIROKI ,  NAKAJIMA SEIJI ,  MIYOSHI TATSUYA ,  MASUOKA HIROYUKI ,  OOTSUKA SHINJI

    IPC: C23C28/00 ,  C22C18/00 ,  C22C38/00 ,  C22C38/60 ,  C23C10/28 ,  C25D3/56

    Abstract: Disclosed is a hot-pressed member which comprises: a steel sheet that constitutes the member and that has a surface layer in which an Ni diffusion region is present; an intermetallic-compound layer formed on the Ni diffusion region, the intermetallic-compound layer corresponding to the ? phase present in a phase equilibrium diagram of a Zn-Ni alloy; and a ZnO layer formed on the intermetallic-compound layer. The hot-pressed member has a spontaneous potential, when immersed in 0.5-M aqueous NaCl solution saturated with air and having a temperature of 25±5ºC, of -600 to -360 mV relative to the standard hydrogen electrode. This hot-pressed member can be produced without generating any scale. The member has excellent adhesion to coatings and has excellent corrosion resistance after coating. The member can be inhibited from corroding and thereby suffering hydrogen penetration into the steel.

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