Threaded joint for steel pipes
    141.
    发明授权
    Threaded joint for steel pipes 有权
    钢管螺纹接头

    公开(公告)号:US06659509B2

    公开(公告)日:2003-12-09

    申请号:US10361763

    申请日:2003-02-11

    Abstract: This invention relates to a threaded joint for steel pipes which comprises a pin and a box each having a contact surface including a threaded portion and an unthreaded metal contact portion and which guarantees galling resistance and gas tightness in a stable manner without application of a compound grease. A solid lubricating coating comprising a lubricating powder (e.g., molybdenum disulfide) and an organic or inorganic binder is formed on the contact surface of at least one of the pin and the box. The proportion of area of a cross section along the thickness of the solid lubricating coating which is occupied by secondary particles of the lubricating powder having an equivalent circular diameter of 15-60 &mgr;m is from 5-90%. Alternatively, the solid lubricating coating comprises, in addition to the lubricating powder, a fibrous filler (e.g., inorganic whiskers) in such an amount that the mass ratio of the fibrous filler to the binder is 0.01-0.5. As a result, galling resistance is improved, particularly at high temperatures.

    Abstract translation: 本发明涉及一种用于钢管的螺纹接头,其包括销和箱,每个销和盒均具有包括螺纹部分和无螺纹金属接触部分的接触表面,并且以不稳定的方式保证耐刮擦性和气密性,而不施加复合润滑脂 。 在销和盒中的至少一个的接触表面上形成包含润滑粉末(例如二硫化钼)和有机或无机粘合剂的固体润滑涂层。 沿着固体润滑涂层的厚度的面积的比例,该固体润滑涂层占据具有等同圆直径为15-60μm的润滑粉末的二次颗粒占5-90%。 或者,固体润滑涂层除了润滑粉末之外还包含纤维填料(例如无机晶须),其量使得纤维填料与粘合剂的质量比为0.01-0.5。 结果,耐擦伤性得到改善,特别是在高温下。

    Low wear and low friction coatings for articles made of low softening point materials
    142.
    发明申请
    Low wear and low friction coatings for articles made of low softening point materials 有权
    低软化点材料制成的低磨损和低摩擦涂层

    公开(公告)号:US20030186060A1

    公开(公告)日:2003-10-02

    申请号:US10063238

    申请日:2002-04-02

    Abstract: The present invention relates to an anti-friction and anti-wear liquid coating composition for use with parts made of materials that have softening points below about 300null F. and articles so coated. The present invention also relates to a method of coating parts made from a low softening point materials with an anti-friction and anti-wear hard coating composition. The coating composition comprises a mixture of (i) solid lubricants comprising boron nitride, graphite and molybdenum disulfide, (ii) a thermoset resin system, (iii) catalyst for curing the resin system and (iv) a solvent system comprising highly volatile solvents. The coating composition is applied to the part and cured to form a coating on the part.

    Abstract translation: 本发明涉及一种用于与软化点低于约300°F的材料制成的部件和如此涂覆的制品的抗摩擦和抗磨损液体涂料组合物。 本发明还涉及一种用低摩擦和耐磨硬涂层组合物涂覆由低软化点材料制成的零件的方法。 涂料组合物包含(i)包含氮化硼,石墨和二硫化钼的固体润滑剂的混合物,(ii)热固性树脂体系,(iii)用于固化树脂体系的催化剂和(iv)包含高挥发性溶剂的溶剂体系。 将涂料组合物施加到部件上并固化以在部件上形成涂层。

    LUBRICANT COMPOSITIONS AND METHODS
    144.
    发明申请
    LUBRICANT COMPOSITIONS AND METHODS 无效
    润滑剂组合物和方法

    公开(公告)号:US20020198114A1

    公开(公告)日:2002-12-26

    申请号:US08943125

    申请日:1997-10-03

    Inventor: Mr. Richard Levy

    Abstract: Abstract of DisclosureA lubricant composition is disclosed comprising a superabsorbent polymer combined with a material for decreasing friction between moving surfaces. The superabsorbent polymer absorbs from about 25 to greater than 100 times its weight in water and may comprise a polymer of acrylic acid, an acrylic ester, acrylonitrile or acrylamide, including co-polymers thereof or starch graft co-polymers thereof or mixtures thereof. In the composition, the material for decreasing friction comprises a petroleum lubricant containing an additive, water containing an additive, synthetic lubricant, grease, solid lubricant or metal working lubricant, wherein the synthetic lubricant, grease, solid lubricant or metal working lubricant optionally contain an additive. A method of lubricating a surface is also disclaosed comprising coating said surface with the lubricating composition comprising the superabsorbent polymer combined with a material for decreasing friction between moving surfaces, wherein the material for decreasing friction comprises a petroleum lubricant, water, synthetic lubricant, grease, solid lubricant or metal working lubricant, and optionally an additive.

    Abstract translation: 公开摘要公开了一种润滑剂组合物,其包含与用于减少运动表面之间的摩擦的材料组合的超吸收性聚合物。 超吸收性聚合物在水中吸收其重量的约25至大于100倍,并且可以包含丙烯酸,丙烯酸酯,丙烯腈或丙烯酰胺的聚合物,包括其共聚物或其淀粉接枝共聚物或其混合物。 在组合物中,用于减少摩擦的材料包括含有添加剂的石油润滑剂,含有添加剂的水,合成润滑剂,润滑脂,固体润滑剂或金属加工润滑剂,其中合成润滑剂,润滑脂,固体润滑剂或金属加工润滑剂任选地含有 添加剂。 润滑表面的方法也被包括在内,包括用包含超吸收性聚合物的润滑组合物涂覆所述表面,所述润滑组合物与用于减少运动表面之间的摩擦的材料组合,其中用于减少摩擦的材料包括石油润滑剂,水,合成润滑剂, 固体润滑剂或金属加工润滑剂,以及任选的添加剂。

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