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    Lubricant for hot rolling tool and method for surface-treating mandrel bar for hot rolled seamless pipe
    445.
    发明专利
    Lubricant for hot rolling tool and method for surface-treating mandrel bar for hot rolled seamless pipe 有权
    滚动工具用润滑剂及表面处理用于热轧无缝管的人造丝棒的方法

    公开(公告)号：JP2011162737A

    公开(公告)日：2011-08-25

    申请号：JP2010030024

    申请日：2010-02-15

    Applicant: Sumitomo Metal Ind Ltd ,  住友金属工業株式会社

    Inventor： SAITO KENICHI

    IPC: C10M173/02 ,  B21B25/04 ,  C10M125/02 ,  C10M125/26 ,  C10M125/30 ,  C10N30/00 ,  C10N30/06 ,  C10N40/24

    CPC classification number: C10M173/02 ,  B21B25/04 ,  C10M2201/041 ,  C10M2201/087 ,  C10M2201/102 ,  C10M2201/103 ,  C10N2210/01 ,  C10N2210/02 ,  C10N2230/06 ,  C10N2240/402 ,  C10N2240/403 ,  C10N2240/404 ,  C10N2240/409 ,  C10N2250/121 ,  C10N2280/00

    Abstract: PROBLEM TO BE SOLVED: To provide a hot-rolling lubricant good in workability and excellent in seizure resistance and to provide a method for surface-treating a mandrel bar for the production of hot-rolled seamless pipes using the lubricant.
    SOLUTION: A hot rolling tool lubricant prepared by dispersing or dissolving an oxide-type layered compound such as potassium tetrasilicon mica, sodium tetrasilicon mica, vermiculite, or bentonite, a boric acid compound such as boric acid, potassium borate, or sodium borate, and graphite in water, wherein the mixing ratio of the oxide-type layered compound to the boric acid compound is 10:90 to 70:30 by mass ratio, and the content of the graphite is 1.0-4.5%. When the lubricant is applied to the surface of a mandrel bar during mandrel mill drawing, the lubricant forms a lubricating film on the bar surface and can exhibit excellent seizure resistance. In addition, it does not happen that the lubricant remains on the inside pipe surface.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种加工性好，耐咬合性优异的热轧润滑剂，提供一种使用该润滑剂生产热轧无缝管的芯棒的表面处理方法。 解决方案：通过分散或溶解四氧化硅云母，四硅云母，蛭石或膨润土等硼酸化合物如硼酸，硼酸钾或钠的氧化物型层状化合物制备的热轧工具润滑剂 硼酸盐和石墨，其中氧化物型层状化合物与硼酸化合物的混合比为10:90〜70:30质量比，石墨含量为1.0〜4.5％。 当在芯棒轧机拉伸中将润滑剂施加到芯棒的表面时，润滑剂在棒表面上形成润滑膜，并且可以表现出优异的耐发泡性。 此外，润滑剂不会发生在内管表面上。 版权所有（C）2011，JPO＆INPIT

    Outer surface-lubricating method in manufacture of seamless pipe using lubricant for hot plastic processing
    447.
    发明专利
    Outer surface-lubricating method in manufacture of seamless pipe using lubricant for hot plastic processing 有权
    使用润滑剂制造无缝管的外表面润滑方法进行热塑性加工

    公开(公告)号：JP2009167242A

    公开(公告)日：2009-07-30

    申请号：JP2008004102

    申请日：2008-01-11

    Applicant: Sumitomo Metal Ind Ltd ,  住友金属工業株式会社

    Inventor： SAITO KENICHI ,  IIDA SUMIO

    IPC: C10M173/02 ,  C10M103/06 ,  C10M125/10 ,  C10N20/00 ,  C10N30/00 ,  C10N30/06 ,  C10N40/24

    CPC classification number: C10M173/02 ,  C10M2201/02 ,  C10M2201/062 ,  C10M2201/102 ,  C10N2230/06 ,  C10N2230/08 ,  C10N2230/12 ,  C10N2230/40 ,  C10N2240/403 ,  C10N2240/404 ,  C10N2240/408 ,  C10N2250/12 ,  C10N2210/08 ,  C10N2210/01

    Abstract: PROBLEM TO BE SOLVED: To provide a lubricant for hot plastic processing that exhibits excellent lubricity and suppliability and exerts no bad influences on corrosion resistance of a product, and an outer surface-lubricating method in the manufacture of a seamless pipe using the lubricant.
    SOLUTION: The lubricant for hot plastic processing includes 20-40 mass% of iron oxide and 10-30 mass% of sodium silicate and has an impurity content of at most 3 mass% and a water content of 40-60 mass%. The lubricant is suitably applied to lubrication of, for example, a guide shoe at the time of piercing rolling of a high Cr steel. When the lubricant is used, it is directly applied on the outer surface of a material to be processed just before piercing rolling (desirably within 1 second before the beginning of the piercing rolling).
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题：为了提供一种表现出优异的润滑性和可供应性的热塑性加工润滑剂，并且对产品的耐腐蚀性没有不良影响，以及在制造无缝管时的外表面润滑方法 润滑剂。 解决方案：用于热塑性加工的润滑剂包括20-40质量％的氧化铁和10-30质量％的硅酸钠，杂质含量最多为3质量％，水含量为40-60质量％ 。 在高Cr钢的穿孔轧制时，润滑剂适用于例如导靴的润滑。 当使用润滑剂时，在穿孔轧制之前（期望在穿孔开始之前的1秒钟内）直接施加在待加工材料的外表面上。 版权所有（C）2009，JPO＆INPIT

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