スポット溶接用めっき鋼板、接合部材、及び自動車用部材、並びに接合部材の製造方法

    公开(公告)号:WO2022107580A1

    公开(公告)日:2022-05-27

    申请号:PCT/JP2021/040169

    申请日:2021-10-29

    摘要: 質量%で、C:0.05~0.70%、Si:3.50%以下、Mn:8.00%以下、P:0.020%以下、S:0.050%以下、Al:3.000%以下、及びN:0.010%以下であり、任意選択元素を含み、残部がFe及び不純物からなる鋼組成を有し、内部酸化層の厚みが、表面から深さ5.0μm未満である母材鋼板と、前記母材鋼板の片面又は両面に形成されている1層又は2層以上のめっき層であって、前記めっき層の少なくとも一部としてZn及びNiを含み、かつ前記めっき層全体でのNi含有量が2.0質量%以上であるめっき層と、を含み、引張強さが780MPa以上である、スポット溶接用めっき鋼板、それを用いた接合部材、自動車用部材、並びに接合部材の製造方法。前記Ni含有めっき層の代わりにNi含有箔を適用してもよい。

    A PROCESS FOR COATING ONTO GALVANIZED SURFACES

    公开(公告)号:WO2022081108A1

    公开(公告)日:2022-04-21

    申请号:PCT/TR2021/050328

    申请日:2021-04-08

    IPC分类号: C23C28/02 C23C22/73 C23C22/06

    摘要: The subject matter of the invention is directed to processes of applying a coating material to galvanized surfaces or materials, which provides significant increases in corrosion resistance. The coating material mentioned here is provided to be applied to the material or surfaces in such a way that the coating can provide the best performance by making improvements over the processes known in the art. The main subject of the invention is that the obtained coating material is applied to galvanized material or surfaces by making appropriate improvements to the coating material on processes existing in the art without requiring additional equipment and processes.

    銅張積層体及びその製造方法
    8.
    发明申请

    公开(公告)号:WO2022030644A1

    公开(公告)日:2022-02-10

    申请号:PCT/JP2021/029461

    申请日:2021-08-07

    摘要: フレキシブル回路基板に適用した場合の伝送損失を抑制しつつ、低誘電樹脂フィルムと銅めっき層との高い密着力と良好な体積抵抗率を実現可能な銅張積層体及びその製造方法を提供する。 【課題】 【解決手段】本発明の銅張積層体は、周波数10GHzにおける比誘電率が3.5以下、且つ誘電正接が0.008以下である低誘電樹脂フィルムと、前記低誘電樹脂フィルムの少なくとも一方の面に積層された無電解銅めっき層と、を含み、前記無電解銅めっき層における結晶子の加重平均サイズが25~300nmであり、且つ、前記樹脂フィルムと前記無電解銅めっき層との密着強度が4.2N/cm以上である、ことを特徴とする。

    METHOD AND SYSTEM FOR FORMING A MULTILAYERED ZINC ALLOY COATING AND METALLIC ARTICLE

    公开(公告)号:WO2022013354A1

    公开(公告)日:2022-01-20

    申请号:PCT/EP2021/069762

    申请日:2021-07-15

    摘要: A method of forming a multilayered zinc alloy coating comprises steps of providing a bath of an aqueous electrolyte including zinc and a second electrodepositable component in an electrolytic cell having an anode and a cathode; applying a current or voltage between the anode and the cathode; modulating the applied current or voltage over time between at least two current or voltage values to thereby modulate the current density over multiple cycles between at least two current density values, wherein a first current density value is in a range of 0.3 to less than 2 A/dm2 and a second current density value is higher than the first current density value and is in a range of 0.6 to less than 5 A/dm2; and controlling the modulation of the applied current or voltage to obtain a multilayered structure having multiple layers of one or more of alternating proportions of the second component, alternating corrosion potential, alternating grain size, and alternating grain orientation, wherein one or more of the multiple layers has a thickness in the range of 1 to 10 μm.