Slide surface construction
    21.
    发明授权
    Slide surface construction 失效
    滑动面施工

    公开(公告)号:US5427633A

    公开(公告)日:1995-06-27

    申请号:US164222

    申请日:1993-12-07

    CPC分类号: F02F7/0085

    摘要: A slide surface construction is formed of an aggregate of Fe crystals having a body-centered cubic structure. The aggregate includes at least one of two types of metal crystals selected from the group consisting of (1) (h00) oriented metal crystals with their (h00) planes (by Miller indices) oriented toward a slide surface and having a content S in a range represented by S

    摘要翻译: 滑动面构造由具有体心立方结构的Fe晶体的集合体形成。 聚集体包括选自由(1)(h00)取向的金属晶体及其(h00)面(通过米勒指数)取向于滑动表面并且具有含量S的金属晶体中的至少一种 范围为S <25%的(2)(3hh0)取向金属晶体及其(3hh0)面(通过米勒指数)朝着滑动面取向,且含量S在S <25%表示的范围内。 如果存在取向的Fe晶体的类型,则在滑动表面中沉淀出大量的三角锥体状的Fe晶体,从而提供改善的保油性和初始的适应性。 因此,滑动面构造表现出优异的耐咬住性。

    Method for direct plating of iron on aluminum
    22.
    发明授权
    Method for direct plating of iron on aluminum 失效
    在铝上直接电镀铁的方法

    公开(公告)号:US5368719A

    公开(公告)日:1994-11-29

    申请号:US61353

    申请日:1993-05-12

    申请人: Sue Troup-Packman

    发明人: Sue Troup-Packman

    IPC分类号: C25D3/20 C25D5/30 C25D5/44

    CPC分类号: C25D3/20 C25D5/44

    摘要: A process for plating aluminum and aluminum alloy substrates, such as 390 aluminum alloy pistons, with iron comprises (a) cathodically activating the aluminum-containing substrate in an acid bath and (b) plating iron from an iron sulfate-containing bath,

    摘要翻译: 一种用于电镀铝和铝合金基体如390铝合金活塞与铁的方法包括:(a)在酸浴中阴极活化含铝基底,(b)从含硫酸铁的浴中镀覆铁,

    Process for electrolytic deposition of iron
    23.
    发明授权
    Process for electrolytic deposition of iron 失效
    铁的电解沉积工艺

    公开(公告)号:US5167791A

    公开(公告)日:1992-12-01

    申请号:US811352

    申请日:1991-12-20

    CPC分类号: C25D3/20 C25D1/00

    摘要: Electroformed and/or electroplated iron with superior ferro-magnetic properties is prepared by an electrolytic process wherein the iron is deposited from an electrolyte bath containing iron salts and preferably substantially free of carbon. The bath and its environment are substantially free of oxygen and other oxidizing agents. A titanium-palladium alloy is a preferred electrode upon which to deposit the iron.

    摘要翻译: 通过电解方法制备具有优异铁磁特性的电铸和/或电镀铁,其中铁由含有铁盐的电解质浴沉积,优选基本上不含碳。 浴及其环境基本上不含氧气和其它氧化剂。 钛 - 钯合金是其上沉积铁的优选电极。

    Direct-on ceramic coating of carbon-rich iron
    24.
    发明授权
    Direct-on ceramic coating of carbon-rich iron 失效
    直接陶瓷涂层富碳铁

    公开(公告)号:US3923611A

    公开(公告)日:1975-12-02

    申请号:US53544174

    申请日:1974-12-23

    申请人: FERRO CORP

    摘要: A process is disclosed for preparing an iron workpiece containing at least 0.03% by weight carbon for a direct-on, onefire ceramic or enamel coat. A substantially continuous layer of substantially pure iron is electrodeposited on a surface of the carbon-rich iron workpiece from a liquid medium containing iron ions while using the workpiece as a cathode. The polarity of the electrodeposition is then reversed to remove some of the iron deposited and produce an exposed, fissured, textured surface in the pure iron layer. When a ceramic coat is conventionally applied over the fissured surface, it adheres well, even though the iron workpiece may contain appreciable amounts of carbon which normally would prevent such adherence for a direct-on ceramic coat. Optionally, the cathodic deposition of iron may comprise a deposition of a non-porous layer followed by an overlay of porous iron and/or take place from an aqueous medium having an acidic pH. A film of a covering metal such as nickel may also be deposited over the fissured layer prior to depositing the ceramic coat.

    摘要翻译: 公开了一种用于制备含有至少0.03重量%碳的铁工件用于直接,单火陶瓷或搪瓷涂层的方法。 在使用工件作为阴极的同时,从含有铁离子的液体介质将基本上连续的基本上纯的铁层电沉积在富碳铁工件的表面上。 然后电沉积的极性反转以除去沉积的一些铁,并在纯铁层中产生暴露的,裂缝的纹理表面。 当传统地将陶瓷涂层施加在裂纹表面上时,即使铁工件可能含有可观察量的碳,通常会阻止直接陶瓷涂层的粘附,其粘附良好。 可选地,铁的阴极沉积可以包括无孔层的沉积,随后是多孔铁的覆盖层和/或从具有酸性pH的水性介质发生。 在沉积陶瓷涂层之前,覆盖金属如镍的膜也可以沉积在裂缝层上。

    METHOD FOR REMOVING FERRIC IONS FROM SULFATE-BASED IRON ELECTROPLATING SOLUTION

    公开(公告)号:US20240150924A1

    公开(公告)日:2024-05-09

    申请号:US18280811

    申请日:2021-03-22

    申请人: POSCO CO., LTD

    摘要: A method for removing ferric ions contained in a sulfate-based iron electroplating solution comprises a step of regeneration for reduction of the ferric ions by circulating a ferric ion-containing sulfate-based iron electroplating solution in a solution bath containing ferrous metal charged therein, wherein the ferrous metal is charged in an amount that satisfies the following formula (1): S≥0.01 Iconv/Cmax (1). In formula (1), S indicates a total surface (m2) of ferrous metal, Cmax indicates a maximum permissible ion concentration level (g/L) of the ferric ions in the solution, and Iconv indicates, as represented by the following formula (2), converted current (A) obtained by dividing the sum of current (I) applied to an electroplated cell during the plating time (tp, sec) by the regeneration time (tr, sec) for reduction of the ferric ions in an electrolyte.





    I
    conv

    =




    Idt
    p





    dt
    r

    SOLUTION FOR ELECTROPLATING IRON, AND ELECTROPLATED STEEL SHEET MANUFACTURED BY USING SAME

    公开(公告)号:US20240044032A1

    公开(公告)日:2024-02-08

    申请号:US18267010

    申请日:2020-12-14

    申请人: POSCO Co., Ltd

    IPC分类号: C25D3/20

    CPC分类号: C25D3/20

    摘要: The present invention relates to a solution for electroplating iron, comprising: iron ions comprising first iron ions and second iron ions; a complexing agent; and unavoidable impurities, wherein the amount of second iron ions among the iron ions is 5 to 60 wt %. According to the present invention, electroplating efficiency is high, there is no drop in electroplating efficiency due to a continuous plating operation, and sludge generation is prevented, and, thus, the plating solution is easily managed. Burning can be prevented even in a high current density operation, and, thus, a high-quality iron-plated layer can be achieved. The plating solution does not need to be replaced, as the concentration of second iron ions generated by a plating reaction is maintained to be constant, and, thus, the present invention is appropriate for a continuous plating process.