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1. 发明专利

JPH0929310A PLUG FOR MANUFACTURING SEAMLESS STEEL TUBE AND METHOD FOR REGRINDING PLUG 失效
公开(公告)号：JPH0929310A
公开(公告)日：1997-02-04
申请号：JP20793295
申请日：1995-07-21
申请人： SUMITOMO METAL IND
发明人： AMANO SHIGERU , OKUYAMA KO , SHIMODA KAZUMUNE
IPC分类号： B21B19/04 , B21B25/00
摘要： PROBLEM TO BE SOLVED: To remarkably improve the reuse rate by regrinding of a piercing plug by providing a parallel part having the min. length of the outside diameter same as the max. diameter part which is not shorter than a prescribed value at the rear of the max. diameter part of the piercing plug for manufacturing seamless steel tubes. SOLUTION: From the rear end of the reeling part 3 which is the max. diameter part Dmax of the piercing plug 1 to the rear end part 5 of the piercing plug, the parallel part 4 having the min. length of the outside diameter Dmax same as the max. diameter pat of the piercing plug which is >=10mm is provided and, at the time of regrinding the piercing plug 1, by moving the max. diameter part Dmax at the rear end of the reeling part 3 to the parallel part 4, the plug is reused for object materials having the same diameter. That is, by taking the min. length of the parallel part 4 as >=10mm, the plug is reground and reused one or more times at the same diameter of plug, because the length L3a of the parallel part necessary to regrinding the plug one time is 10mm at the minimum.

2. 发明专利

JP2003340511A Conveyor roller for high temperature material 审中-公开
标题翻译：用于高温材料的输送机滚子
公开(公告)号：JP2003340511A
公开(公告)日：2003-12-02
申请号：JP2002152243
申请日：2002-05-27
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： AMANO SHIGERU , ANRAKU TOSHIRO , KIMURA KAZUKIYO
IPC分类号： B65G39/10 , B21B39/00 , C21D1/00 , C23C30/00
摘要： PROBLEM TO BE SOLVED: To provide a conveyor roller for high temperature material, which has excellent and effective build-up resistance, even when used in such a high temperature atmosphere as that in a heat treatment furnace.
SOLUTION: A mother material surface of the roller is covered by a metal- carbide composite coating containing a carbide of 20-70 vol.%. Preferably, the carbide is composed of one or more kinds selected from the group of Nb, W, Ti, V and Cr, and a matrix metal is a Ni base alloy, a Co base alloy or a stainless steel.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：即使在如在热处理炉中的高温气氛中使用时，也提供具有优异且有效的耐积垢性的用于高温材料的输送辊。
解决方案：辊的母材表面被含有20-70体积％的碳化物的金属碳化物复合涂层覆盖。优选地，碳化物由选自Nb，W，Ti，V和Cr中的一种或多种组成，并且基体金属是Ni基合金，Co基合金或不锈钢。版权所有（C）2004，JPO

3. 发明专利

JP2000160247A MANUFACTURE OF DUPLEX STAINLESS STEEL TUBE 失效
公开(公告)号：JP2000160247A
公开(公告)日：2000-06-13
申请号：JP32948698
申请日：1998-11-19
申请人： SUMITOMO METAL IND
发明人： AMANO SHIGERU
IPC分类号： B21B3/02 , B21B19/00 , C21D8/10 , C22C38/00 , C22C38/44 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of scalelike eruption flaw at the external surface by carrying out soaking treatment under the condition that the soaking temperature and soaking time of a billet satisfy a specific relation. SOLUTION: Billet is composed of a duplex stainless steel containing 1.5-5.0 wt.% W. In a soaking treatment of the billet, the soaking temperature and soaking time satisfy the following inequality: 300>=(t/400)× -(T-1200)2+40,000}, where (t) is soaking time (hr) and T is soaking temperature ( deg.C). Further, T is made to 1,000 to 1,400, preferably to 1,100 to 1,320. A steel tube manufactured by the method is required to have seawater corrosion resistance in particular when used for a submarine flow line, and therefore it is preferable that the billet contains, other than W, prescribed amounts of C, Si, Mn, P, S, sol.Al, Ni, Cr, Mo, and N and also contains prescribed amounts of one or more elements among Ca, Mg, REM, and B and/or one or more elements among Cu, V, Ti, and Nb.

4. 发明专利

JP2007100217A Roller for conveying hot material 审中-公开
标题翻译：滚筒输送热物料
公开(公告)号：JP2007100217A
公开(公告)日：2007-04-19
申请号：JP2006292595
申请日：2006-10-27
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： AMANO SHIGERU , ANRAKU TOSHIRO , KIMURA KAZUKIYO
IPC分类号： C21D1/00 , B21B39/00 , B23K10/02 , C22C19/00 , C22C29/06 , C22C38/00 , C22C38/18
摘要： PROBLEM TO BE SOLVED: To provide a roller effective for conveying a hot material, which is excellent in build-up resistance even when used in an elevated-temperature atmosphere, e.g. in a heat-treatment furnace. SOLUTION: The roller has a metal-carbide composite film containing 20-70% of by volume carbide on the surface of a base material. Preferably, the carbide is Cr carbide, and a matrix metal is an Ni alloy, a Co alloy or stainless steel. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种有效地输送热材料的辊，即使在高温气氛中使用时，耐积垢性也优异。在热处理炉中。解决方案：辊具有在基材表面上含有20-70％（体积）碳化物的金属碳化物复合膜。优选碳化物为Cr碳化物，基体金属为Ni合金，Co合金或不锈钢。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2002339086A RAW MATERIAL FOR RUST PREVENTIVE FOR STEEL TUBE AND COMPOSITION THEREOF 失效
公开(公告)号：JP2002339086A
公开(公告)日：2002-11-27
申请号：JP2001144357
申请日：2001-05-15
申请人： SUMITOMO METAL IND , PALACE CHEMICAL CO LTD
发明人： AMANO SHIGERU , SATO KATSUJI , TANAKA KAZUO , MORI SHIZUO
IPC分类号： C08K5/05 , C08L57/02 , C08L67/00 , C08L91/06 , C08L93/00 , C09D5/08 , C09D157/02 , C09D167/08 , C09D191/06 , C09D193/00 , C23F11/00
摘要： PROBLEM TO BE SOLVED: To improve the drying properties of the raw material for a rust preventive while maintaining strength of a conventional coating film and transparency thereof. SOLUTION: The raw material contains one or more kinds selected from natural resins such as rosin and a guaiac resin or the modified matter thereof. If required, the raw material is blended with; (1) 1 to 20 mass% of one or more kinds of wax components selected from petrolatum, the oxide thereof or the like; or with (2) 10 to 50 mass% of one or more kinds selected from synthetic resins such as a petroleum hydrocarbon resin and/or synthetic resins such as an alkyd resin; or with (3) 1 to 20 mass% of one or more kinds selected from petrolatum, the oxide thereof or the like, and 10 to 50 mass% of one or more kinds selected from synthetic resins such as a petroleum hydrocarbon resin and/or synthetic resins such as an alkyd resin. The raw material for the rust preventive for a steel tube thus obtained of 30 to 70 mass% is diluted with a petroleum solvent and/or an alcolic solvent or a mixed solvent thereof.

6. 发明专利

JP2007160338A Hot working tool, and method for manufacturing seamless steel pipe 有权
标题翻译：热加工工具，以及制造无缝钢管的方法
公开(公告)号：JP2007160338A
公开(公告)日：2007-06-28
申请号：JP2005358436
申请日：2005-12-13
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： IIDA SUMIO , ASABE KAZUTAKA , NAKANISHI TETSUYA , AMANO SHIGERU
IPC分类号： B21B25/00 , B21B17/08 , B21B25/04 , C22C38/00 , C22C38/18
摘要： PROBLEM TO BE SOLVED: To provide a hot working tool having an excellent tool life, and further to provide a method for manufacturing a seamless steel pipe having excellent inside surface properties.
SOLUTION: The hot working tool has a metal-carbide composite coating film formed on the surface of a base material, the metal-carbide composite coating film having a niobium carbide powder dispersed in a matrix metal made of a Co-base alloy or an Ni-base alloy, and has a ferrous oxide coating film formed on its outermost surface. Preferably, the ferrous oxide coating film is formed by rolling a carbon steel. The hot working tool is suitable for a plug to be used in plug-mill-rolling a blank pipe made of alloy steel or stainless steel containing 8 or more mass% of Cr at a rolling reduction of 2 to 5 mm in a thickness.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的工具寿命的热加工工具，并且还提供一种具有优异的内表面性能的无缝钢管的制造方法。解决方案：热加工工具在基材表面形成有金属碳化物复合涂膜，该金属碳化物复合涂膜具有分散在由Co基合金制成的基质金属中的碳化铌粉末或Ni基合金，并且在其最外表面上形成有氧化亚铜涂膜。优选地，通过轧制碳钢来形成氧化亚铜涂膜。该热加工工具适用于在厚度为2〜5mm的压下量下，将含有8质量％以上的Cr的合金钢或不锈钢制的空管进行插拔轧制。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2007092180A Method for restraining buildup on roller for carrying high temperature material 审中-公开
标题翻译：用于承载高温材料的滚筒上的建筑物的方法
公开(公告)号：JP2007092180A
公开(公告)日：2007-04-12
申请号：JP2006292596
申请日：2006-10-27
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： AMANO SHIGERU , ANRAKU TOSHIRO , KIMURA KAZUKIYO
IPC分类号： C21D1/00 , B21B39/00 , C22C19/05 , C22C19/07 , C22C38/00 , C22C38/18
摘要： PROBLEM TO BE SOLVED: To provide a method for restraining the buildup on a roller for carrying a high temperature material, excellent in an effective buildup resistance, even in the case of use under high temperature atmosphere, such as in the heat treatment furnace.
SOLUTION: When the high temperature material is carried with the rollers for carrying the high temperature material constituted of the uppermost surface with metal-carbide composite film, composed of 20-70 vol% carbide and the balance metal on the basic material surface disposed in the heat treatment furnace; the buildup formed on a scale is restrained by detaching metallic oxide existent in the scale generated on the metal-carbide combined film to detach the scale.
COPYRIGHT: (C)2007,JPO&INPIT

8. 发明专利

JPH1128507A PLUG MILL ROLLING METHOD FOR SEAMLESS METAL TUBE 失效
公开(公告)号：JPH1128507A
公开(公告)日：1999-02-02
申请号：JP18122797
申请日：1997-07-07
申请人： SUMITOMO METAL IND
发明人： NAKANISHI TETSUYA , HARA HIDEYOSHI , AMANO SHIGERU
IPC分类号： B21B3/02 , B21B17/08 , B21B25/04 , C10M103/02 , C10N40/24
摘要： PROBLEM TO BE SOLVED: To obtain an excellent inner surface property even in the case of rolling with a large rolling reduction by specifying the transfer speed of a plug and feeding a powdery lubricant consisting of the mixture of powder of oxide, a hydroxide or a hydroxide contg. water of crystallization with prescribed constituent and graphite powder into the tube stock. SOLUTION: In the plug mill rolling method of a seamless metal tube capable of rolling tube stock consisting of the ferrous alloy containing 4.5 weight% or more Cr with a large wall thickness rolling reduction, the plug is transferred at the speed of >=2.0 mm/sec in the rolling advancing direction of the tube or in the inverse direction of the rolling advancing direction. Besides, the powdery lubricant consisting of the mixture of one kind or two kinds or more of powder selected from the oxide, the hydroxide or the hydroxide contg. water of crystallization consisting of each element or plural elements of, as main constituent, aluminum, silicon, calcium, titanium, iron, boron and sodium and graphite powder is fed into the tube stock.

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