Powdered lubricant composition for hot working and method for manufacturing seamless tubes
    1.
    发明申请
    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:US20070287642A1

    公开(公告)日:2007-12-13

    申请号:US11798950

    申请日:2007-05-18

    IPC分类号: C10M173/02

    摘要: 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.

    摘要翻译: 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 (Na 2 B 4 S 7 O 7),在制管过程中固化为无定形,从吸水率,干燥和结晶到由此抑制 在最终产品管的内表面上形成Na 2 B 4 O 7 H 2 O 2 O 2, 从而能够规避白鳞的发生。 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。

    Powdered lubricant composition for hot working and method for manufacturing seamless tubes
    2.
    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

    摘要: 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.

    摘要翻译: 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。

    MANDREL BAR CLEANING FACILITY
    10.
    发明申请
    MANDREL BAR CLEANING FACILITY 审中-公开
    MANDREL酒吧清洁设施

    公开(公告)号:US20100269868A1

    公开(公告)日:2010-10-28

    申请号:US12377315

    申请日:2007-08-06

    IPC分类号: B21B45/02

    摘要: It is an object of the present invention to provide a mandrel bar cleaning facility capable of effectively suppressing carburization generated on the inner surface of a pipe or tube while the pipe or tube is elongated and rolled without hindering an operation.A mandrel bar cleaning facility 15 of the present invention cleans a mandrel bar B which is pulled out of a mandrel bar conveying line after being used for elongating and rolling a pipe or tube in a mandrel mill 8. The mandrel bar cleaning facility 15 is provided with conveying devices 17, 18 that convey the mandrel bar B in the axial direction while revolving the mandrel bar B in the peripheral direction, and cleaning devices 1d that are arranged oppositely to the side of the mandrel bar B conveyed by the conveying devices 17, 18, and jet high-pressure water having a water pressure of 0.2 to 150 MPa (preferably, 20 to 150 MPa) toward the outer surface of the mandrel bar B.

    摘要翻译: 本发明的目的是提供一种芯棒清洗设备,能够有效地抑制管或管的内表面上产生的渗碳,同时在不妨碍操作的情况下延长和滚动管子。 本发明的芯棒清洗装置15清洗了在用于在芯棒式无缝管轧机8中延长和轧制管或管的芯棒输送线之后拉出的芯棒B.提供了芯棒清洗装置15 具有沿轴向传送芯棒B的输送装置17,18,同时使芯棒B沿圆周方向旋转,以及与由输送装置17输送的芯棒B的相反侧布置的清洁装置1d, 18,向芯棒B的外表面喷射水压为0.2〜150MPa(优选为20〜150MPa)的高压水。