Treating bath, forming a mixed carbide layer of Va-Group elements on a
ferrous alloy surface and resulting product
    2.
    发明授权
    Treating bath, forming a mixed carbide layer of Va-Group elements on a ferrous alloy surface and resulting product 失效
    处理浴,在铁合金表面上形成Va-Group元素的混合碳化物层和所得产品

    公开(公告)号:US4202705A

    公开(公告)日:1980-05-13

    申请号:US921794

    申请日:1978-07-03

    IPC分类号: C23C10/24 C23C10/26 C23C9/10

    CPC分类号: C23C10/26

    摘要: A method and treating material are presented for forming a mixed carbide layer of Va-Group elements on the surface of a carbon-containing ferrous-alloy material. The molten bath is made by introducing one or more oxides of Va-Group elements and one or more metals or alloys of Va-Group elements (other than the elements forming the oxides) into a molten bath composed of boric acid, a borate or a mixture thereof. The mixed carbide layer formed on the surface of the article is very smooth, wear resistant and corrosion resistant.

    摘要翻译: 提出了一种方法和处理材料,用于在含碳铁合金材料的表面上形成Va族组分的混合碳化物层。 通过将一种或多种Va族组分的一种或多种氧化物和一种或多种Va组成元素(除了形成氧化物的元素之外)的金属或不同于形成氧化物的元素的合金引入由硼酸,硼酸盐或 的混合物。 在制品表面形成的混合碳化物层非常光滑,耐磨,耐腐蚀。

    Method for forming a carbide layer of a Va-Group element of the periodic
table or chromium on the surface of a ferrous alloy article
    3.
    发明授权
    Method for forming a carbide layer of a Va-Group element of the periodic table or chromium on the surface of a ferrous alloy article 失效
    在铁基合金制品的表面上形成周期表的Va族元素或铬的碳化物层的方法

    公开(公告)号:US4158578A

    公开(公告)日:1979-06-19

    申请号:US902696

    申请日:1978-05-04

    CPC分类号: C23C12/02 C23C10/24

    摘要: A method for forming a boron-containing carbide layer on the surface of a ferrous alloy article by dipping the article in a molten bath. The bath is made by introducing boron and an oxide of a Va-Group element or of chromium into molten boric acid or a borate bath. The ratio of the boron to the oxide is between 7% and 40%. The carbide layer formed is very hard and has good oxidation resistance.

    摘要翻译: 一种通过将制品浸入熔融浴中在含铁合金制品的表面上形成含硼碳化物层的方法。 通过将硼和Va族元素或铬的氧化物引入熔融硼酸或硼酸盐浴中来制备浴。 硼与氧化物的比率为7%至40%。 形成的碳化物层非常硬并且具有良好的抗氧化性。

    Method for forming a carbide layer of a V-a group element of the periodic table on the surface of an iron, ferrous alloy or cemented carbide article
    4.
    发明授权
    Method for forming a carbide layer of a V-a group element of the periodic table on the surface of an iron, ferrous alloy or cemented carbide article 失效
    在铁,铁合金或硬质合金制品的表面上形成周期表的V-a族元素的碳化物层的方法

    公开(公告)号:US3930060A

    公开(公告)日:1975-12-30

    申请号:US35527873

    申请日:1973-04-27

    CPC分类号: C23C10/24 C23C30/005

    摘要: A method for forming a carbide layer of a V-a group element of the periodic table on the surface of an iron, ferrous alloy or cemented carbide article in a treating molten bath, comprising heating a boric acid or borate up to its molten state to form a molten bath, dipping a metal containing a V-a group element into the molten bath, applying an electric current to the molten bath through said metal, which works as its anode, for anodically dissolving said metal into the molten bath to prepare the treating molten bath, and immersing the article in the treating molten bath, thereby forming a very hard carbide layer of said Va group element on the surface of said article. The method of this invention can form a very smooth carbide layer on the surface of the article.

    摘要翻译: 一种在处理熔池中在铁,铁合金或硬质合金制品的表面上形成周期表的Va族元素的碳化物层的方法,包括将硼酸或硼酸盐加热至其熔融状态,形成 将含有Va组元素的金属浸入熔池中,通过作为其阳极的金属将熔融的电流施加到熔池中,用于将所述金属阳极溶解到熔池中以制备处理熔池, 并将制品浸入处理熔池中,从而在所述制品的表面上形成所述Va族元素的非常硬的碳化物层。 本发明的方法可以在制品的表面上形成非常平滑的碳化物层。

    Method for forming of a carbide layer of a V-a group element of the periodic table on the surface of an iron, ferrous alloy or cemented carbide article
    5.
    发明授权
    Method for forming of a carbide layer of a V-a group element of the periodic table on the surface of an iron, ferrous alloy or cemented carbide article 失效
    在铁,铁合金或硬质合金制品的表面上形成周期表的V-a族元素的碳化物层的方法

    公开(公告)号:US3922405A

    公开(公告)日:1975-11-25

    申请号:US35528073

    申请日:1973-04-27

    摘要: A method for forming a carbide layer of a V-a group element V, Nb or TA of the periodic table on the surface of an iron, ferrous alloy or cemented carbide article in a treating molten bath, comprising heating a mixture of boric acid or a borate and a chloride of said V-a group element of the periodic table to its fusing state and immersing the article in the treating molten bath of said mixture, thereby forming a very hard carbide layer of said V-a group element on the surface of said article. The method of this invention can be carried out without ageing the treating bath and can form a very smooth carbide layer on the surface of the article.

    摘要翻译: 在处理熔池中在铁,铁合金或硬质合金制品的表面上形成周期表的Va族元素V,Nb或TA的碳化物层的方法,包括加热硼酸或硼酸盐的混合物 和周期表的所述Va族元素的氯化物转化为其定影状态,并将制品浸入所述混合物的处理熔池中,从而在所述制品的表面上形成所述Va族元素的非常硬的碳化物层。 本发明的方法可以在不使处理槽老化的情况下进行,并且可以在制品的表面上形成非常平滑的碳化物层。

    METHOD FOR PRODUCING CORE/SHELL NANOPARTICLES AND CORE/SHELL NANOPARTICLES
    6.
    发明申请
    METHOD FOR PRODUCING CORE/SHELL NANOPARTICLES AND CORE/SHELL NANOPARTICLES 审中-公开
    生产核/壳纳米颗粒和核/壳纳米颗粒的方法

    公开(公告)号:US20150214433A1

    公开(公告)日:2015-07-30

    申请号:US14425017

    申请日:2013-08-29

    摘要: The present invention relates to a process for the continuous preparation of core-shell nanoparticles, comprising a core of a core material, preferably of a semiconductor material, and a shell of a shell material, preferably of a semiconductor material, wherein selected starting materials for the shell material are mixed with a dispersion of nanoparticles of the core material and are passed continuously through a reaction zone of a tubular reactor, and other starting materials for the shell material are fed to the reaction zone of the tubular reactor at two or more locations, preferably via a tubular membrane, and the starting materials for the shell material react in the reaction zone to form a shell around the nanoparticles of the core material. The invention also relates to the tubular reactor with the membrane and its use for the continuous synthesis of core-shell nanoparticles.The invention also relates to core-shell nanoparticles comprising a core of a core material, preferably of a first semiconductor material, and an outer shell of a shell material, characterized in that, between core and shell, there is only a layer of a transition zone, in which the proportion of the core material gradually decreases toward the shell, while the proportion of the shell material gradually increases.

    摘要翻译: 本发明涉及一种连续制备核 - 壳纳米颗粒的方法,该方法包括优选半导体材料的核心材料的芯和优选半导体材料的外壳材料,其中选择的起始材料为 将壳材料与核心材料的纳米颗粒的分散体混合并连续通过管式反应器的反应区,并将其它用于壳材料的起始材料在两个或多个位置进料到管式反应器的反应区 ,优选通过管状膜,并且用于壳材料的起始材料在反应区中反应以在芯材料的纳米颗粒周围形成壳。 本发明还涉及具有膜的管状反应器及其用于连续合成核 - 壳纳米颗粒的用途。 本发明还涉及包含芯材料芯,优选第一半导体材料的芯壳和外壳材料的外壳的核 - 壳纳米颗粒,其特征在于,在芯和壳之间仅存在一层转变 其中核心材料的比例逐渐降低,壳的比例逐渐增加。

    Process for the production of vanadium carbide coatings on iron
    7.
    发明授权
    Process for the production of vanadium carbide coatings on iron 失效
    在铁上生产钒碳涂层的工艺

    公开(公告)号:US4440581A

    公开(公告)日:1984-04-03

    申请号:US278617

    申请日:1981-06-29

    IPC分类号: C23C10/24 C23C9/10

    CPC分类号: C23C10/24

    摘要: Vanadium carbide layers are produced on iron and iron alloys having a content of at least 0.1 weight % carbon by treating the workpiece at 800.degree. to 1100.degree. C. in a salt bath which contains 1-30 weight % of vanadium or ferrovanadium powder. The salt bath consists of alkaline earth and/or alkali metal halide.

    摘要翻译: 通过在含有1-30重量%的钒或铁钒粉末的盐浴中在800℃至1100℃下处理工件,在含有至少0.1重量%碳含量的铁和铁合金上生产碳化钒层。 盐浴由碱土金属和/或碱金属卤化物组成。

    Method for forming a carbide layer on the surface of a ferrous alloy
article or a cemented carbide article
    8.
    发明授权
    Method for forming a carbide layer on the surface of a ferrous alloy article or a cemented carbide article 失效
    在铁合金制品或硬质合金制品的表面上形成碳化物层的方法

    公开(公告)号:US4400224A

    公开(公告)日:1983-08-23

    申请号:US365022

    申请日:1982-04-02

    IPC分类号: C23C8/44 C23C10/24 C21D1/48

    CPC分类号: C23C10/24

    摘要: A method for forming a carbide layer on the surface of a carbon-containing ferrous alloy article or a cemented carbide article in a molten treating bath. The bath is prepared by introducing 5 to 20% by weight of alumina into molten boric acid or borate bath and a carbide-forming element dissolved therein. By employing the treating bath of this invention, the life of the bath can be remarkably improved, and no sintered substance of undissolved carbide-forming element is produced in the treating bath. Further, it is possible to reduce markedly the corrosion of the article and of the vessel holding the bath.

    摘要翻译: 一种用于在熔融处理浴中的含碳铁合金制品或硬质合金制品的表面上形成碳化物层的方法。 通过将5至20重量%的氧化铝引入熔融的硼酸或硼酸盐浴中并溶解在其中的碳化物形成元素来制备浴。 通过使用本发明的处理液,可以显着提高浴的寿命,在处理槽中不产生未溶解的碳化物形成元件的烧结体。 此外,可以显着地减少制品和容纳浴的容器的腐蚀。

    Process of forming a carbide layer of vanadium, niobium or tantalum upon a steel surface
    9.
    发明授权
    Process of forming a carbide layer of vanadium, niobium or tantalum upon a steel surface 失效
    在钢表面形成钒,铌或钽的碳化物层的工艺

    公开(公告)号:US3719518A

    公开(公告)日:1973-03-06

    申请号:US3719518D

    申请日:1970-10-29

    CPC分类号: C23C12/02 C23C10/24

    摘要: A process for the surface treatment of an iron or iron alloy stock comprising heating a mixture of boric acid or borate. A V-a group element of the periodic table consisting of vanadium, niobium and tantalum, or a substance containing the same, and carbon or a carbon containing substance to its fusing state in a bath vessel, and immersing the stock in the molten bath of said mixture, thereby forming a carbide layer of said element on the stock thus treated. The present invention can be performed without adding carbon to a mixture in the case when either said stock or said vessel includes carbon.

    摘要翻译: 一种用于铁或铁合金原料表面处理的方法,包括加热硼酸或硼酸盐的混合物。 由钒,铌和钽组成的周期表的Va族元素,或含有该元素的物质,以及在浴槽中熔化状态的碳或含碳物质,并将该料浸入所述混合物的熔池中 从而在所处理的原料上形成所述元素的碳化物层。 在所述原料或所述容器包含碳的情况下,可以在不向混合物中添加碳的情况下进行本发明。