Powdered lubricant composition for hot working and method for manufacturing seamless tubes
    44.
    发明授权
    Powdered lubricant composition for hot working and method for manufacturing seamless tubes 有权
    用于热加工的粉末润滑剂组合物和用于制造无缝管的方法

    公开(公告)号:US07919439B2

    公开(公告)日:2011-04-05

    申请号:US11798950

    申请日:2007-05-18

    Abstract: With a powdered lubricant composition by the invention, in addition to the blending of one of anhydrous, pentahydrate or decahydrate salt in sodium borate and one of sodium or calcium salt of fat acid, mixing calcium or lithium carbonate as an auxiliary lubricant can prevent sodium borate (Na2B4O7), solidified as amorphous after a tube-making process, from moisture absorbance, drying and crystallization to thereby suppress the formation of Na2B4O7.5H2O on inside surfaces of finished-product tubes, thus enabling to circumvent occurrence of the white scales. Concurrently, they provide good diffusivity toward the working surface of workpiece, thus enabling to prolong a life of the mandrel bar and to widely be adopted as the most suitable powdered lubricant for manufacturing seamless tubes by Mandrel Mill rolling.

    Abstract translation: 通过本发明的粉末状润滑剂组合物,除了在硼酸钠和脂肪酸的钠盐或钙盐之一中的无水五水合物或十水合物盐之一的混合之外,混合碳酸钙或碳酸锂作为辅助润滑剂可以防止硼酸钠 (Na2B4O7),在制管过程中固化为无定形,从吸湿度,干燥和结晶,从而抑制成品管内表面上形成Na 2 B 4 O 7·5H 2 O,从而能够绕过白色鳞片的发生。 同时,它们对工件的工作表面提供良好的扩散性,从而能够延长芯棒的使用寿命,并被广泛地用作通过心轴轧机轧制制造无缝管的最合适的粉末润滑剂。

    Multifunctional dispersants
    45.
    发明授权
    Multifunctional dispersants 有权
    多功能分散剂

    公开(公告)号:US07902130B2

    公开(公告)日:2011-03-08

    申请号:US11816215

    申请日:2006-02-08

    Abstract: The present invention provides a composition comprising the product prepared by hearing together: (a) a dispersant; and (b) a 1,3-dicarboxylic acid or 1,4-dicarboxylic acid of an aromatic compound, or a reactive equivalent thereof; and at least one of: (c) 2,5-dimercapto-1,3,4-thiadiazole or a hydrocarbyl-substituted 2,5-dimercapto-1,3,4-thiadiazole, or an oligomer thereof; (d) a borating agent; and (e) a phosphorus acid compound, or a reactive equivalent thereof, said heating being sufficient to provide a reaction product of (a), (b), and (c), (d), or (e), which is soluble in an oil of lubricating viscosity. The invention further provides a use for the composition.

    Abstract translation: 本发明提供一种组合物,其包含通过一起听到制备的产物:(a)分散剂; 和(b)芳族化合物的1,3-二羧酸或1,4-二羧酸或其反应性等同物; 和(c)2,5-二巯基-1,3,4-噻二唑或烃基取代的2,5-二巯基-1,3,4-噻二唑或其低聚物中的至少一种; (d)硼化剂; 所述加热足以提供(a),(b)和(c),(d)或(e)的反应产物,其为可溶的 在润滑粘度油中。 本发明还提供了组合物的用途。

Patent Agency Ranking