Methods and compositions for boronizing metallic surfaces
    1.
    发明授权
    Methods and compositions for boronizing metallic surfaces 失效
    硼化金属表面的方法和组成

    公开(公告)号:US4555326A

    公开(公告)日:1985-11-26

    申请号:US611067

    申请日:1984-05-17

    申请人: Dwight K. Reid

    发明人: Dwight K. Reid

    CPC分类号: C23C8/70 C23C8/42 C23C8/68

    摘要: The present disclosure is directed to methods and compositions for boronizing metal and in particular ferrous surfaces. It has been discovered that if hydrocarbons are processed in metallic equipment which have been previously boronized, that coke formation and deposition which is commonly experienced at high temperatures can be minimized if not totally eliminated. The compositions utilized for this purpose are comprised of boron or boron compounds contained in an organic solvent or carrier together with specific activating materials.

    摘要翻译: 本公开涉及用于硼化金属,特别是铁表面的方法和组合物。 已经发现,如果在先前硼化的金属设备中处理碳氢化合物,则如果不是完全消除在高温下通常经历的焦炭形成和沉积可以最小化。 用于此目的的组合物由有机溶剂或载体中所含的硼或硼化合物与特定的活化材料组成。

    Method of producing abrasion resistant plastification elements for
injection molding machines
    3.
    发明授权
    Method of producing abrasion resistant plastification elements for injection molding machines 失效
    生产注塑机用耐磨塑化件的方法

    公开(公告)号:US3994750A

    公开(公告)日:1976-11-30

    申请号:US548751

    申请日:1975-02-10

    申请人: Karl Hehl

    发明人: Karl Hehl

    IPC分类号: C21D9/00 C23C8/70 C23C9/08

    CPC分类号: C21D9/0068 C23C8/70

    摘要: A method of producing highly abrasion resistant plastification screws and plastification cylinders for injection molding machines in which plastic materials with abrasive fillers are processed, the machined plastification elements being borided in a boron carbide packing and then hardened or tempered, the method involving the selection of a tool steel or temper steel whose austenitization temperature is below the highest boriding temperature, so that the elements can be hardened or tempered immediately after the boriding treatment, by chilling them with an inert gas, while they are still in contact with the boriding packing.

    摘要翻译: 一种生产用于注射成型机的高耐磨塑化螺丝和塑化气瓶的方法,其中加工具有研磨填料的塑料材料,机加工的塑化元件在硼化物填料中硼化,然后硬化或回火,该方法包括选择 奥氏体化温度低于最高硼化温度的工具钢或回火钢,使得元素可以在硼化处理后立即硬化或回火,通过在惰性气体下冷却,同时它们仍然与硼化垫料接触。

    Boron diffusion coating process
    5.
    发明授权
    Boron diffusion coating process 失效
    硼扩散涂层工艺

    公开(公告)号:US3935034A

    公开(公告)日:1976-01-27

    申请号:US485528

    申请日:1974-07-03

    申请人: William J. Hayes

    发明人: William J. Hayes

    CPC分类号: C23C8/68 C23C30/005 C23C8/70

    摘要: This invention is addressed to a process for the diffusion coating of metals which are capable of forming a compound or a solid solution with boron by contacting the metal with boron at a temperature greater than 1350.degree.F.

    摘要翻译: 本发明涉及通过在大于1350°F的温度下使金属与硼接触而能够通过硼形成化合物或固溶体的金属扩散涂覆的方法。

    Cutting blade for an agricultural implement, and method of manufacturing the same

    公开(公告)号:US11060176B2

    公开(公告)日:2021-07-13

    申请号:US16662081

    申请日:2019-10-24

    申请人: DEERE & COMPANY

    摘要: The disclosure provides a method of manufacturing a cutting blade for an agricultural implement. The method includes forming the cutting blade to define a final shape having an exterior surface. The cutting blade is treated with a surface diffusion hardening process to form a surface hardened layer disposed over a core layer. The surface hardened layer is very thin, approximately 0.1 mm, and exhibits an apparent hardness equal to or greater than 1000 HV. After the surface diffusion hardening process, the cutting blade is treated with a through hardening process, such that the core layer exhibits a Rockwell Hardness C Scale value between the range of thirty five (35) and fifty five (55).