WEAR-RESISTANT, HIGH-TEMPERATURE, REDUCED-COBALT ALLOYS FOR WELDING AND OTHER APPLICATIONS

    公开(公告)号:US20230323517A1

    公开(公告)日:2023-10-12

    申请号:US17718715

    申请日:2022-04-12

    申请人: Weldmold Co.

    发明人: Christina Miller

    摘要: An iron-based welding and forging alloy with a complex chemistry produces a dense, homogenous weld deposit that is resistant to hardness loss at elevated temperatures with less reliance on cobalt content. Such an alloy may comprise, in approximate percentages by weight: cobalt: 5-25; chromium: 7-14; tungsten: 2.5-10; molybdenum: 2-9; nickel: 1-6; carbon: 0.01-5; manganese: 0.01-3; with iron and residual elements comprising the balance. The residual elements may include one or more of the following: silicon, vanadium, phosphorus, and sulfur. The amounts of the residual elements may be up to 1% by weight. The inventive alloys may be provided in any suitable form for welding purposes, including metal-core TIG (GTAW), coated electrode (SMAW) and metal-core-wire (MCAW). The inventive alloy combinations may be fabricated as welding filler, providing resistance to high temperature softening, facilitating use in applications that previously dictated a specific cobalt-based material.

    Method for joining metal parts
    4.
    发明授权

    公开(公告)号:US11738414B2

    公开(公告)日:2023-08-29

    申请号:US17606566

    申请日:2020-05-08

    摘要: A method for joining a first metal part with a second metal part, the metal parts having a solidus temperature above 1100° C., includes applying a melting depressant composition on a surface of the first metal part, the melting depressant composition including a melting depressant component that includes at least 25 wt % boron and silicon for decreasing a melting temperature of the first metal part; bringing the second metal part into contact with the melting depressant composition at a contact point on said surface; heating the first and second metal parts to a temperature above 1100° C.; and allowing a melted metal layer of the first metal component to solidify, such that a joint is obtained at the contact point. The boron at least partly originates from a boron compound selected from any of the following compounds: boric acid, borax, titanium diboride and boron nitride. The melting depressant composition and related products are also described.

    Hardbanding alloy
    9.
    发明授权
    Hardbanding alloy 有权
    硬质合金

    公开(公告)号:US09540711B2

    公开(公告)日:2017-01-10

    申请号:US13360352

    申请日:2012-01-27

    摘要: The present disclosure relates to an alloy, for hardbanding and/or hard overlay applications, which is abrasion resistant to the order of siliceous earth particles and weldable in crack free state on industrial products. The alloy is a carbon chrome based alloy comprising titanium and vanadium carbides and thus has an extremely low coefficient of friction, high abrasion resistance as welded without working. In tool joints and stabilizers, the alloy achieves an optimum balance between tool joint and stabilizer wear resistance and induced casing wear. The alloy is also self-shielded and therefore does not require external shielding gas.

    摘要翻译: 本公开涉及一种用于耐磨和/或硬覆盖应用的合金,其耐磨性为硅土粒子的顺序并且可在工业产品中以无裂纹状态焊接。 该合金是包含钛和钒碳化物的碳铬基合金,因此具有非常低的摩擦系数,高耐磨性,无需工作焊接。 在工具接头和稳定器中,合金实现了刀具接头和稳定器耐磨性和诱发套管磨损之间的最佳平衡。 该合金也是自屏蔽的,因此不需要外部保护气体。