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1. 发明专利

JPH05290880A 失效
公开(公告)号：JPH05290880A
公开(公告)日：1993-11-05
申请号：JP8721892
申请日：1992-04-08
申请人： SUMITOMO METAL IND , TOKYO ELECTRIC POWER CO , HITACHI LTD
发明人： ANRAKU TOSHIRO , KUDO TAKEO , OTSUKA NOBUO , MORI SADAO , MARUYAMA TADASHI , CHIKAZAKI MITSUO , CHIBA YOSHITERU , HATOU HISAMITSU
IPC分类号： H01M10/39
摘要： PURPOSE:To provide a material for the positive electrode container of a sodium-sulfur battery and the manufacturing method thereof with the improved corrosion resistance against high-temperature sulfur and sodium polysulfide. CONSTITUTION:(1) This is a material for the positive pole of a sodium-sulfur battery with excellent corrosion resistance which is characterized by having a chromized layer of not less than 25mum thick including as main body chrome carbide on the outermost surface of a base material of low alloy steel containing carbon steel having C of not more than 0.55wt.% or additionally including Mo of not more than 5wt.% and/or Cr of not more than 12wt.%. (2) This is the manufacturing method for a material for the positive electrode of a sodium-sulfur battery with excellent corrosion resistance which is characterized by forming a coating film layer including as a main body chrome carbide on the surface to which the chromizing treatment is applied at the temperature of 1000 to 1150 deg.C after carbonizing treatment is applied in advance to the foregoing composition and then the carbon concentration on the surface layer part is set to 0.7 to 1.5wt.%. Thereby, the corrosion of a positive electrode container may be prevented, so that the durability of the positive pole container is remarkably increased.

2. 发明专利

JP2006159207A Method for manufacturing seamless steel pipe 有权
标题翻译：制造无缝钢管的方法
公开(公告)号：JP2006159207A
公开(公告)日：2006-06-22
申请号：JP2004349889
申请日：2004-12-02
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： IIDA SUMIO , ANRAKU TOSHIRO , HIDAKA YASUYOSHI , INAGE TAKAMITSU , NAKAIKE HIROTSUGU
IPC分类号： B21B25/04
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a seamless steel pipe by the Mannesmann-mandrel mill process, which method can suppress the generation of carburized layer on the inside surface of the pipe.
SOLUTION: The method for manufacturing the seamless steel pipe comprises piercer-rolling a steel billet and elongation-rolling an obtained hollow shell while inserting a mandrel bar therein with a mandrel mill, wherein the rolling operation in elongation-rolling is carried out so as to satisfy the following condition: (0.015×E+0.0002×T-0.02)×C≤2, where E is an elongation ratio, T is a time (s) from the completion of the mandrel mill rolling until the stripping, and C is a quantity (g/m
2 ) of carbon stuck on the surface of the mandrel bar.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种通过Mannesmann-芯棒式无缝管轧制工艺制造无缝钢管的方法，该方法可以抑制管道内表面上的渗碳层的产生。解决方案：无缝钢管的制造方法包括对钢坯进行穿孔机轧制，并且在将芯棒在芯棒式无缝管轧机中插入的同时对获得的中空壳进行伸长轧制，其中进行伸长轧制中的轧制操作满足以下条件：（0.015×E + 0.0002×T-0.02）×C≤2，其中E是伸长率，T是从芯棒式无缝管轧机轧制直到汽提完成的时间， C是碳棒表面附着的碳的量（g / m×SP> 2 ）。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2005068490A Solid round billet and its manufacturing method, method for manufacturing martensite stainless seamless steel pipe 有权
标题翻译：固体圆柱及其制造方法，制造马氏体不锈钢无缝钢管的方法
公开(公告)号：JP2005068490A
公开(公告)日：2005-03-17
申请号：JP2003299856
申请日：2003-08-25
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： NAKAIKE HIROTSUGU , ANRAKU TOSHIRO
IPC分类号： B21B19/04 , C21D9/00 , C22C38/00 , C22C38/44
摘要： PROBLEM TO BE SOLVED: To provide a solid round billet having favorable biting property and anti-slipping property for a tilted roll type piercer, to provide its manufacturing method, and to provide an efficient method for manufacturing a martensite stainless seamless steel pipe by which the above billet as a raw material can be pierced with a low draft rate of the plug top, the pipe has no inner fracture flaw and the plug has a long life.
SOLUTION: The solid round billet comprises 0.01 to 0.08% C, 0.05 to 1.00% Si, 0.05 to 1.50% Mn, 9.0 to 15.0% Cr, 0.05 to 5.00% Mo, 0.0005 to 0.05% Al, ≤0.1% N, 0.3 to 4.0% Ni, 0 to 4.0% Cu and the balance Fe and impurities and has a two-layer structure of oxide scales produced by heating and having 1×10
4 to 2×10
5 particles/mm
2 dispersion density of metal particles of Ni or Ni and a Ni-Cu compound in the inner layer scales having ≥0.1 μm particle size. The billet is obtained in an oxidative atmosphere with 5 to 30 vol% steam concentration in a temperature range of 1,100 to 1,300°C for 1.5 to 6.0 hours, and after the outer layer scale is removed, the billet is subjected to pierce rolling.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种具有良好咬合性能和倾斜辊式穿孔机的抗滑性的固体圆钢坯，以提供其制造方法，并提供一种制造马氏体不锈钢无缝钢管的有效方法作为原料的上述坯料可以以塞子顶部的低通气速度被穿孔，该管没有内部裂缝缺陷，并且塞子具有长的使用寿命。
解决方案：固体圆坯包括0.01至0.08％的C，0.05至1.00％的Si，0.05至1.50％的Mn，9.0至15.0％的Cr，0.05至5.00％的Mo，0.0005至0.05％的Al，≤0.1％的N ，0.3〜4.0％的Ni，0〜4.0％的Cu，余量为Fe和杂质，并具有通过加热产生的氧化皮的两层结构，并具有1×10 4 至2×10 颗粒/ mm 2 在1100〜1300℃的温度范围内，以5〜30体积％的蒸汽浓度的氧化气氛中获得钢坯1.5〜6.0小时，在除去外层标尺之后，对钢坯进行穿孔轧制。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2001123249A MARTENSITIC STAINLESS STEEL 失效
公开(公告)号：JP2001123249A
公开(公告)日：2001-05-08
申请号：JP33447999
申请日：1999-11-25
申请人： SUMITOMO METAL IND
发明人： AMAYA TAKASHI , ANRAKU TOSHIRO , HIDAKA YASUYOSHI
IPC分类号： B24C1/00 , B21B45/04 , B21C37/30 , B21C43/00 , C22C38/00 , C22C38/44
摘要： PROBLEM TO BE SOLVED: To produce martensitic stainless steel excellent in rust generation resistance in an atmospheric environment and, further, excellent in sulfide stress cracking resistance in an oil well environment in the surface condition as-being subjected to shot blast treatment. SOLUTION: In this martensitic stainless steel, Cr content, decided by the relational formula between the frequency of the peaks Yp in the histogram of the number of picture elements obtained by analyzing the photographed image of the surface in the state of mill scales to be left after mill scale removing treatment by a shot blast method and the gradient value Xp showing the frequency of the peaks Yp is 9 to 15 mass %.

5. 发明专利

JPH11236651A MARTENSITIC STAINLESS STEEL TUBE EXCELLENT IN WEATHER RESISTANCE AND ITS PRODUCTION 失效
公开(公告)号：JPH11236651A
公开(公告)日：1999-08-31
申请号：JP3992798
申请日：1998-02-23
申请人： SUMITOMO METAL IND
发明人： AMAYA TAKASHI , ANRAKU TOSHIRO , HIDAKA YASUYOSHI
IPC分类号： B24C1/08 , C21D7/06 , C22C38/00 , C22C38/18
摘要： PROBLEM TO BE SOLVED: To provide a martensitic stainless steel tube excellent in weather ability (rust generating resistance) and to provide an inexpensive method for producing it. SOLUTION: This steel tube is the one made of a martensitic stainless steel contg. 9 to 15% Cr, in which surface roughness is regulated to , and the residual area ratio in the field of 1 mm of the mill scale is regulated to

6. 发明专利

JPH09201604A MANUFACTURE OF SEAMLESS STEEL TUBE 失效
公开(公告)号：JPH09201604A
公开(公告)日：1997-08-05
申请号：JP1014296
申请日：1996-01-24
申请人： SUMITOMO METAL IND
发明人： TSUDA KOTA , MASATOMO HIROAKI , ANRAKU TOSHIRO , NAKANISHI TETSUYA , IIDA SUMIO
IPC分类号： B21B19/04 , B21B45/04 , C21D1/70 , C21D9/08
摘要： PROBLEM TO BE SOLVED: To provide a method by which a seamless tube without a carburized layer on its inside surface is highly efficiently manufactured. SOLUTION: Rough rolling with a mandrel mill using a graphitic lubricant, reheating and finish rolling with a stretch reducer are continuously executed, thereafter, after making thickness of residual oxided scale

7. 发明专利

JPH08224611A METHOD FOR PREVENTING CEMENTATION OF SEAMLESS STEEL PIPE 失效
公开(公告)号：JPH08224611A
公开(公告)日：1996-09-03
申请号：JP3521995
申请日：1995-02-23
申请人： SUMITOMO METAL IND
发明人： IIDA SUMIO , NAKANISHI TETSUYA , ANRAKU TOSHIRO , TSUDA KOTA
IPC分类号： B21B17/02 , B21B45/00 , B21B45/02 , C21D8/10
摘要： PURPOSE: To provide a method for preventing the cementation of a surface layer in the inside of a pipe, by which productivity is not lowered and a product excellent in the property of the inside surface of the pipe. CONSTITUTION: When manufacturing a seamless steel pipe by Mannesmann- mandrel mill system, mandrel mill rolling is performed by using graphite base lubricant. After making the quantity of the lubricant left over on the inside surface of the pipe after this mandrel mill rolling 50mg/m or below, the pipe is heated again. Also, to make the quantity of the lubricant left over 50mg/m or below, high pressure water of 5.0MPa or over is sprayed on the inside surface of the pipe after the mandrel mill rolling.

8. 发明专利

JPH0847714A SURFACE TREATED TOOL FOR HOT WORKING 失效
公开(公告)号：JPH0847714A
公开(公告)日：1996-02-20
申请号：JP18609194
申请日：1994-08-08
申请人： SUMITOMO METAL IND
发明人： TSUBOUCHI KENJI , OKADA YASUTAKA , ANRAKU TOSHIRO
IPC分类号： B21B25/00 , B21B27/00 , B21C25/00 , B21C25/02 , B21C25/04 , C22C19/03 , C22C19/05
摘要： PURPOSE:To provide a surface treated toll for hot working having a more excellent coating film by surface treatment in place of hard chromium plating or nitriding. CONSTITUTION:The coating film by surface treatment which satisfies the next requirement is provided on the surface of a base material for tools. The surface hardness of the base material for tools is Vickers hardness of >=350. The surface roughness of the base material for tools is 0.3-4.0mum by center line average roughness (Ra). And the coating film by surface treatment consists of a Ni-base alloy contg. by weight, 30-55% W or 2-15% Cr and 30-50% W.

9. 发明专利

JPH06193781A INSULATING TUBE HAVING EXCELLENT CLOSE FILM ADHESIVENESS FOR PREVENTING ELECTRIC CORROSION 失效
公开(公告)号：JPH06193781A
公开(公告)日：1994-07-15
申请号：JP34719492
申请日：1992-12-25
申请人： SUMITOMO METAL IND
发明人： ANRAKU TOSHIRO , UEDA MASAKATSU , HIRAIDE NOBUHIKO
IPC分类号： C23F15/00 , F16L9/02 , F16L15/04
摘要： PURPOSE:To prevent the electric corrosion and gap corrosion which are generated in relaying different kinds of metal tubes in an oil well construction, etc., and improve the close adhesiveness of an insulation preventing film. CONSTITUTION:A low corrosion-resistant tube 1 and a high corrosion-resistant tube 2 are screwingly connected directly or through a coupling 3. An insulative ceramic film having a thickness of 0.4mum or more and a specific resistance of 10 OMEGAcm or more is formed with a covering rate of 90% or more but less than 100%, in the range L over 60mm from the tube edges of the inner and outer surfaces of the tubes, S1 and 2, in the range L over 60mm from both the tube edges of the inner and outer surfaces of the coupling 3, and the gap parts A and B in the connection. Further, a metal layer consisting of the constitution metal atoms of an insulative ceramics film is formed on the under layer, and the metal ions in the metal layer are dispersed in a tube basic member, and the nonmetal ions in the insulating ceramics film are dispersed in the metal layer.

10. 发明专利

JPH0525718A ROTARY RING FOR SPINNING MACHINE AND PRODUCTION THEREOF 失效
公开(公告)号：JPH0525718A
公开(公告)日：1993-02-02
申请号：JP11874291
申请日：1991-05-23
申请人： SUMITOMO METAL IND
发明人： ANRAKU TOSHIRO
IPC分类号： C23C16/30 , C23C16/27 , D01H7/60
摘要： PURPOSE:To obtain the title rotary ring capable of standing wear resulting from sliding of traveler for a long period of time by molding a material of carbon steel or low-alloy steel into a given shape, then carburizing or nitriding and further coating the material with ceramics. CONSTITUTION:A material of carbon steel or low-alloy steel is molded into a given shape, then carburized by solid carburizing method or liquid carburizing method or nitrided by gas nitriding or salt bath nitriding method to form a carburized layer or a nitrided layer having >=300mum thickness on the surface. Then the carburized layer or nitrided layer is coated with creamics such as TiN, TiC, Al2O3 or BN and provided with a ceramic coating film having 2-10mum thickness to give the objective rotary ring having extremely improved life. The carburizing or nitriding and ceramic coating are preferably carried out continuously in the same chamber.

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