OUTER SURFACE-LUBRICATING METHOD IN MANUFACTURE OF SEAMLESS PIPE USING LUBRICANT FOR HOT PLASTIC PROCESSING,申请号JP20080004102-传众专利搜索

OUTER SURFACE-LUBRICATING METHOD IN MANUFACTURE OF SEAMLESS PIPE USING LUBRICANT FOR HOT PLASTIC PROCESSING

申请公布号：JP2009167242(A)

申请号：JP20080004102

申请日期：2008.01.11

申请公布日期：2009.07.30

申请人：

SUMITOMO METAL IND LTD

发明人：SAITO KENICHI;IIDA SUMIO

分类号：C10M173/02;C10M103/06;C10M125/10;C10N20/00;C10N30/00;C10N30/06;C10N40/24

主分类号：C10M173/02

摘要：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