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1. 发明专利

JP2001001016A MANDREL BAR FOR HOT MANUFACTURING SEAMLESS TUBE AND HOT MANUFACTURING METHOD OF SEAMLESS TUBE 失效
公开(公告)号：JP2001001016A
公开(公告)日：2001-01-09
申请号：JP16751399
申请日：1999-06-14
申请人： SUMITOMO METAL IND
发明人： IIDA SUMIO , TSUBOUCHI KENJI , NAGASE YUTAKA , IMAMURA MASAMI
IPC分类号： B21B25/00 , C23C30/00
摘要： PROBLEM TO BE SOLVED: To obtain a mandrel bar having longer life without generating burning even when the bar is used for rolling high alloy steel containing chromium by forming a chromium plating film in the range of the specific thickness on the mandrel bar. SOLUTION: The chromium plating film of 60-200 μm thick is formed on the surface of a base metal of the mandrel bar. The major cause of generation of burning is peeling of the chromium plating by heat cracks and a lot of burnings are generated in parts where the base metal of the bar is exposed by the elimination of the chromium plating film by wear, so it is necessary to thicken the chromium plating film and, when the thickness is 60-200 μm, the life is rapidly improved. The surface roughness Ra in the direction of the axial length of the base metal is defined as >=0.1 to =2 wt.% Cr in rolling with a mandrel mill, burning is not generated.

2. 发明专利

JP2006219556A Two-pack type anti-seizing agent for hot plastic working and method for producing seamless pipe using the same 有权
标题翻译：用于热塑性工作的两个包装类型防止剂和使用它的生产无缝管的方法
公开(公告)号：JP2006219556A
公开(公告)日：2006-08-24
申请号：JP2005033015
申请日：2005-02-09
申请人： Palace Chemical Co Ltd , Sumitomo Metal Ind Ltd , パレス化学株式会社 , 住友金属工業株式会社
发明人： IIDA SUMIO , IMAMURA MASAMI , TANAKA YUJI , SHIMODA KAZUMUNE , HORI HIROFUMI , MOTOKI AKIRA , MORI SHIZUO
IPC分类号： C10M141/00 , B21B19/04 , B21B27/10 , C10M125/10 , C10M125/18 , C10M125/22 , C10M125/24 , C10M125/26 , C10M129/06 , C10M129/08 , C10M129/26 , C10M129/34 , C10M129/52 , C10M133/08 , C10M145/40 , C10M173/02 , C10N10/02 , C10N10/04 , C10N10/06 , C10N10/12 , C10N10/16 , C10N30/06 , C10N40/24
CPC分类号： C10M173/02 , B21B19/04 , C10M2201/062 , C10M2201/081 , C10M2201/085 , C10M2201/087 , C10M2201/10 , C10M2201/102 , C10M2207/021 , C10M2207/10 , C10M2207/122 , C10M2207/123 , C10M2207/124 , C10M2209/12 , C10M2215/02 , C10N2210/01 , C10N2210/02 , C10N2210/03 , C10N2210/08 , C10N2230/06 , C10N2240/402 , C10N2240/403 , C10N2240/404 , C10N2250/02 , C10N2250/121
摘要： PROBLEM TO BE SOLVED: To obtain a two-pack type anti-seizing agent for hot plastic working, in which since an anti-seizing agent applied to a disk roll type guide shoe is not made to flow by cooling water of a roll, the anti-seizing agent is supplied and retained on the peripheral surface of the disk roll type guide shoe, is not adhered to the roll and does not cause a roll slip between the roll and a tubular material and the tubing material is punched and rolled and to provide a method for producing a seamless pipe using the same.
SOLUTION: The two-pack type anti-seizing agent comprises a first aqueous solution that contains 10-30% by mass calculated as an anhydride of sodium silicate when the mass of the total of the first aqueous solution is 100% by mass and a second aqueous solution containing one or more kinds selected from the group consisting of an organic acid, its water-soluble amine salt, an inorganic acid, its water-soluble amine salt, a water-soluble amine, a water-soluble alcohol and a water-soluble metal chloride.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了获得用于热塑性加工的双组分型抗咬合剂，其中由于施加到圆盘辊型导靴的防咬住剂不会通过冷却水的流动而流动防卷曲剂被供给并保持在盘辊型导靴的周面上，不粘附到辊上，并且不会在辊和管状材料之间导致辊滑动，并且管材料被冲压，并提供一种使用其制造无缝管的方法。解决方案：双组分型防卡剂包含第一水溶液，当第一水溶液的总质量为100质量％时，含有10-30质量％计，作为硅酸钠的酸酐计和含有选自有机酸，其水溶性胺盐，无机酸，其水溶性胺盐，水溶性胺，水溶性醇和水溶性胺的一种或多种的第二水溶液，以及水溶性金属氯化物。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2000226591A LUBRICANT FOR HOT PLASTIC WORKING AND HOT PLASTIC WORKING 失效
公开(公告)号：JP2000226591A
公开(公告)日：2000-08-15
申请号：JP2843699
申请日：1999-02-05
申请人： SUMITOMO METAL IND
发明人： IZAWA MASARU , TSUBOUCHI KENJI , IIDA SUMIO , NAKANISHI TETSUYA , IMAMURA MASAMI
IPC分类号： B21B25/04 , B21B27/10 , B21B45/02 , C10M103/00 , C10M103/06 , C10M105/22 , C10M169/04 , C10N10/02 , C10N10/04 , C10N10/16 , C10N30/06 , C10N40/24
摘要： PROBLEM TO BE SOLVED: To provide a lubricant for hot plastic working that can prevent the seizure between the material to be processed and the tool as well as inhibits the abrasion and peeling of the plated layer on the tool, and provide a hot plastic working using this lubricant. SOLUTION: This lubricant comprises 50-80 wt.% of an alkali metal borate, 5-30 wt.% of iron oxide, 0-30 wt.% of an alkali metal salt of fatty acid and 0-30 wt.% of an alkali metal sulfate. This lubricant is adhered to the surface to be processed of the material that is heated up to the processing temperature, then the tool is brought into contact with the surface coated with the lubricant to effect the hot plastic working.

4. 发明专利

JP2012173119A Friction testing method and friction testing device 审中-公开
标题翻译：摩擦测试方法和摩擦测试设备
公开(公告)号：JP2012173119A
公开(公告)日：2012-09-10
申请号：JP2011034999
申请日：2011-02-21
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： IIDA SUMIO , GOTO KUNIO , IMAMURA MASAMI
IPC分类号： G01N3/56 , G01N19/02
摘要： PROBLEM TO BE SOLVED: To provide a friction testing method that can simulate damage to a tool used to manufacture a seamless steel pipe and evaluate performance of the tool and a lubricant which are actually used.SOLUTION: There is provided a friction testing method of simulating friction between a tool and a rolled material during manufacture of a seamless steel pipe, the friction testing method including rotating a first columnar test piece 1 and a second columnar test piece 2 on axes 1X, 2X respectively in a state in which the first test piece 1 and the second test piece 2 are held so that the axes 1X, 2X do not intersect while the first test piece 1 and the second test piece 2 are pressed against each other with an outer peripheral surface of the second test piece 2 brought into contact with an end surface of the first test piece 1.
摘要翻译：要解决的问题：提供可以模拟用于制造无缝钢管的工具的损坏并评估实际使用的工具和润滑剂的性能的摩擦试验方法。解决方案：提供了一种在制造无缝钢管期间模拟工具和轧制材料之间的摩擦的摩擦试验方法，所述摩擦试验方法包括将第一柱状试验片1和第二柱状试验片2旋转到在第一测试件1和第二测试件2被保持的状态下分别轴1X，2X，使得轴1X，2X在第一测试片1和第二测试片2彼此挤压时不相交第二测试件2的外周表面与第一测试件1的端面接触。版权所有：（C）2012，JPO＆INPIT

5. 发明专利

JP2002113507A PLUG FOR PIERCING SEAMLESS STEEL TUBE AND METHOD FOR MANUFACTURING SEAMLESS STEEL TUBE 失效
公开(公告)号：JP2002113507A
公开(公告)日：2002-04-16
申请号：JP2000306688
申请日：2000-10-05
申请人： SUMITOMO METAL IND
发明人： TSUBOUCHI KENJI , IIDA SUMIO , IMAMURA MASAMI
IPC分类号： B21B25/00 , B21B19/04 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide a plug for piercing a seamless steel tube which has a long life even in rolling of high-allow steel such as stainless steel and a Ni-base alloy and with which a tube excellent in the properties of the inside surface because of small coefficient of friction. SOLUTION: This plug has a covering layer 2a consisting of a columbium base alloy whose Ti-content is 7-45 mass% and compressive deformation resistance at 1,573 K is >=150 MPa on its outside surface. It is better that this covering layer 2a is formed by interposing an intermediate layer made of metal whose specific heat is larger than that of the covering layer.

6. 发明专利

JP2000351007A MANDREL BAR FOR PRODUCTION OF HOT SEAMLESS TUBE 失效
公开(公告)号：JP2000351007A
公开(公告)日：2000-12-19
申请号：JP16751199
申请日：1999-06-14
申请人： SUMITOMO METAL IND
发明人： IIDA SUMIO , TSUBOUCHI KENJI , NAGASE YUTAKA , IMAMURA MASAMI
IPC分类号： B21B25/00
摘要： PROBLEM TO BE SOLVED: To obtain a mandrel bar of a long life, no variance in lifes among bars and a low cost by forming a surface waviness shape in the longitudinal direction so that depth/pitch of ruggedness satisfy a specified relation. SOLUTION: A mandrel bar for production of a hot seamless tube, which has at least a shape of surface waviness in the longitudinal direction of a region subjecting to actual rolling, which satisfies a formula: Δh =0.1 μm to

7. 发明专利

JPH11226614A METHOD FOR IMPROVING SERVICE LIFE OF MANDREL BAR FOR MANUFACTURING HOT SEAMLESS STEEL TUBE 失效
公开(公告)号：JPH11226614A
公开(公告)日：1999-08-24
申请号：JP3296098
申请日：1998-02-16
申请人： SUMITOMO METAL IND
发明人： HORI HIROFUMI , TSUBOUCHI KENJI , IMAMURA MASAMI
IPC分类号： B23P9/00 , B21B25/00 , C21D9/00 , C23C22/05 , C23C22/62
摘要： PROBLEM TO BE SOLVED: To prevent generation of surface cracks in a heat treatment, to ensure the application effect of MgCl2 solution when rust scales are formed, and to improve the burning resistance by heat-treating a mandrel bar after use at the temperature below the tempering temperature after the initial hardening in new production, grinding or cutting it by not less than the prescribed dimension, adhering rust scales thereto after grinding, and achieving the heat treatment at similar temperature. SOLUTION: The surface hardness of a mandrel bar after use is unified, and the mandrel bar is re-heated at the temperature below the initial tempering temperature in newly manufacturing the mandrel bar in order to unify the reduction in the outside diameter by grinding and cutting. A heat affecting zone layer of a surface layer of the mandrel bar is completely removed, and the outside diameter is reduced by not less than 0.06 mm in order to ensure that the surface hardness of the mandrel bar in re-use is similar to that in new manufacture. After MgCl2 aqueous solution is applied, the mandrel bar which is dried and on which red rust is formed, is heat-treated at the temperature below the initial tempering temperature to form a burning resistant scale film on its surface, and a lubricant containing oxalic acid is applied thereto.

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