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1. 发明专利

JP2002038238A FERRITE BASED FREE CUTTING STAINLESS STEEL 失效
公开(公告)号：JP2002038238A
公开(公告)日：2002-02-06
申请号：JP2000221433
申请日：2000-07-21
申请人： ISHIDA KIYOHITO , NAT INST OF ADV IND & TECHNOL , OIKAWA MASANARI , DAIDO STEEL CO LTD , TOHOKU STEEL
发明人： ISHIDA KIYOHITO , OIKAWA MASANARI , SHIMIZU TETSUYA , OKABE MICHIO , EHATA TAKASHI
IPC分类号： C22C38/00 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a free cutting stainless steel excellent in machinability and outgassing property, which is usable for a material of machine or parts required of corrosion resistance and hot workability. SOLUTION: A (Ti, Zr) based compound is composed of none Ni or bellow 2 mass % Ni, 12-35 mass % Cr, 0.01-0.4 mass % C and at least one of Ti and Zr, satisfying that WTi+0.52WZr is 0.03-3.5 mass % wherein WTi (mass %) is content of Ti and WZr (mass %) is content of Zr, or composed of at least one of 0.01-1 mass % S and 0.01-0.8 mass % Se, at least one of Ti and Zr as metallic component, and C as essential component and at least one of S and Se wherein these three components are binding components with above metallic components.

2. 发明专利

JP2002060912A FREE CUTTING ALLOY MATERIAL 失效
公开(公告)号：JP2002060912A
公开(公告)日：2002-02-28
申请号：JP2000251602
申请日：2000-08-22
申请人： ISHIDA KIYOHITO , NAT INST OF ADV IND & TECHNOL , OIKAWA MASANARI , DAIDO STEEL CO LTD , TOHOKU STEEL
发明人： ISHIDA KIYOHITO , OIKAWA MASANARI , SHIMIZU TETSUYA , OKABE MICHIO , EHATA TAKASHI
IPC分类号： C22C38/00 , C22C19/05 , C22C27/06 , C22C30/00 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a free cutting alloy material which is used as the stock for apparatus or parts requiring various characteristics as functional material and which has excellent machinability. SOLUTION: In an alloy having a composition containing, by mass, 2 to 82% Ni and the balance mainly at least either Fe or Cr, a free cutting alloy material containing 0.002 to 0.4 mass% C, containing at least either Ti or Zr in such a manner that, provided that the content of Ti is defined as WTi (mass%), and the content of Zr is defined as WZr (mass%), WTi+0.52 WZr is controlled to 0.03 to 3.5 mass%, containing one or more kinds selected from 0.01 to 1.5% S, 0.01 to 4.5% Se and 0.005 to 6% Te, and in which a (Ti, Zr) based compound containing at least either Ti or Zr as a metallic element component and moreover containing, as combining components with the same metallic component, C as an essential component, S and at least one kind selected from Se and Te is formed into the structure has excellent machinability and also has characteristics as functional material not inferior to those of the conventional functional material.

3. 发明专利

JP2002363674A FREE CUTTING Ni BASED HEAT RESISTANT ALLOY 失效
公开(公告)号：JP2002363674A
公开(公告)日：2002-12-18
申请号：JP2001167940
申请日：2001-06-04
申请人： ISHIDA KIYOHITO , NAT INST OF ADV IND & TECHNOL , DAIDO STEEL CO LTD , TOHOKU STEEL
发明人： ISHIDA KIYOHITO , OIKAWA MASANARI , UEDA SHIGENORI , NODA TOSHIHARU , EHATA TAKASHI
IPC分类号： F01L3/02 , C22C19/05
摘要： PROBLEM TO BE SOLVED: To produce a free cutting Ni based heat resistant alloy which has satisfactory high temperature strength and corrosion resistance, and has excellent machinability. SOLUTION: This Ni based heat resistant alloy contains Ni as the main component, and contains, by mass, 0.01 to 0.3% C and 14 to 35% Cr. The alloy contains one or more kinds selected from Ti, Zr and Hf by 0.1 to 6% in total, and contains 0.015 to 0.5% S. By these additional elements, a free cutting impartation compound phase containing any of Ti, Zr and Hf as the main component of metallic element components, and, as bonding components with the metallic element components, essentially consisting of C, and containing either S or Se is dispersedly formed into the structure. Further, provided that the content of Ti is defined as WTi (mass%), the content of Zr as WZr (mass%), the content of Hf as WHf (mass%), the content of C as WC (mass%), and the content of S as WS (mass%), WTi+0.53WZr+0.27WHf>2WC+0.75WS, and WC>0.37WS are satisfied. In this way, free S present in the alloy structure is suppressed, and its machinability can be improved while preventing deterioration in hot workability.

4. 发明专利

JP2002339047A CORROSION-RESISTANT STEEL 失效
公开(公告)号：JP2002339047A
公开(公告)日：2002-11-27
申请号：JP2001147026
申请日：2001-05-16
申请人： ISHIDA KIYOHITO , NAT INST OF ADV IND & TECHNOL , TOHOKU STEEL , DAIDO STEEL CO LTD
发明人： ISHIDA KIYOHITO , OIKAWA MASANARI , EHATA TAKASHI , ISHIKAWA KOICHI , NODA TOSHIHARU , SHIMIZU TETSUYA
IPC分类号： F16C3/02 , C21D8/06 , C22C38/00 , C22C38/42 , C22C38/50 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide inexpensive steel which has excellent machinability, has sufficient corrosion resistance and weather resistance, in an indoor environment, requires no plating and is suitable for a printer shaft. SOLUTION: The corrosion resistance steel has a composition containing 0.005 to 0.200% C,

5. 发明专利

JP2001262280A Pb-FREE-TYPE FERRITIC FREE-CUTTING STAINLESS STEEL 失效
公开(公告)号：JP2001262280A
公开(公告)日：2001-09-26
申请号：JP2000070257
申请日：2000-03-14
申请人： ISHIDA KIYOHITO , NAT INST OF ADVANCED IND SCIEN , OIKAWA MASANARI , DAIDO STEEL CO LTD , TOHOKU STEEL
发明人： ISHIDA KIYOHITO , OIKAWA MASANARI , SHIMIZU TETSUYA , INOKUCHI TAKAYUKI , OKABE MICHIO , EHATA TAKASHI
IPC分类号： C22C38/00 , C22C38/28 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To produce a Pb-free-type ferritic stainless steel which is suitable for use as a stock for equipments or parts requiring excellent machinability, corrosion resistance and cold or hot workability and is remarkably reduced in Pb content. SOLUTION: The steel has a composition containing 0-2.0 mass% Ni, 12-35 mass% Cr and 0.005-0.2 mass% C and also containing at least either of Ti and Zr in amounts satisfying WTi+0.52 WZr=0.03 to 1.2 mass% (where WTi (mass%) and WZr (mass%) are Ti content and Zr content, respectively). Moreover, a compound, containing at least either of 0.01-0.5 mass% S and 0.01-0.4 mass% Se, further containing at least either of Ti and Zr as metallic element components, and also containing, as binder component with respect to the metallic element components, C as an essential component and further at least either of S and Se, is formed in the structure. By this method, the Pb-free-type ferritic stainless steel excellent in machinability can be attained with the least sacrifice of hot workability, cold workability and corrosion resistance.

6. 发明专利

JP2001140034A FREE-CUTTING ALLOY MATERIAL 失效
公开(公告)号：JP2001140034A
公开(公告)日：2001-05-22
申请号：JP2000251626
申请日：2000-08-22
申请人： ISHIDA KIYOHITO , NAT INST OF ADVANCED IND SCIEN , OIKAWA MASANARI , DAIDO STEEL CO LTD , TOHOKU STEEL
发明人： ISHIDA KIYOHITO , OIKAWA MASANARI , EHATA TAKASHI , SHIMIZU TETSUYA , OKABE MICHIO , INOKUCHI TAKAYUKI
IPC分类号： C22C38/00 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a free-cutting alloy material excellent in machinability while maintaining various characteristics as an alloy. SOLUTION: A (Ti, Zr) series compound containing at least either Ti or Zr as metallic element components, containing, as bonding components with the metallic element components, C as the essential components and moreover containing one or two or more kinds selected from S, Se and Te is formed into a matrix metal phase. In this way, a free-cutting alloy having more excellent machinability while maintaining the characteristics as the alloy similarly to those of the conventional one is obtained. For example when a compound expressed by (Ti, Zr)4C2(S, Se, Te)2 is at least dispersedly formed in the alloy structure, this effect is remarkable.

7. 发明专利

JP2006152355A Free-cutting soft magnetic iron 有权
标题翻译：自由切割软磁铁
公开(公告)号：JP2006152355A
公开(公告)日：2006-06-15
申请号：JP2004343151
申请日：2004-11-26
申请人： Daido Steel Co Ltd , Kiyohito Ishida , National Institute Of Advanced Industrial & Technology , Tohoku Tokushuko Kk , 大同特殊鋼株式会社 , 東北特殊鋼株式会社 , 独立行政法人産業技術総合研究所 , 清仁石田
发明人： ISHIDA KIYOHITO , OIKAWA MASANARI , EHATA TAKASHI , ISHIKAWA KOICHI , SHIMIZU TETSUYA
IPC分类号： C22C38/00 , C22C38/60 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide free-cutting soft magnetic iron to which excellent machinability is imparted while having satisfactory magnetic properties. SOLUTION: The free-cutting soft magnetic iron has a composition comprising, by mass, ≤0.05% C, ≤4.0% Si, ≤1.0% Mn, 0.03 to 0.35% S and 0.05 to 1.0% Ti, and the balance Fe with inevitable impurities, and in which, provided that X=100C(%)-Si(%)+5Mn(%)+30S(%)+3Ti(%), the X satisfies ≤15. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供具有良好的机械加工性的自由切削软磁铁，同时具有令人满意的磁性能。解决方案：自由切割软磁铁具有以质量计≤0.05％，Si≤4.0％，Mn≤0.1.0％，锡0.03〜0.35％，Ti为0.05〜1.0％ Fe为不可避免的杂质，X = 100℃（％）-Si（％）+ 5Mn（％）+ 30S（％）+ 3Ti（％）时，X满足≤15。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2006152354A Free-cutting soft magnetic stainless steel 有权
标题翻译：自由切削软磁性不锈钢
公开(公告)号：JP2006152354A
公开(公告)日：2006-06-15
申请号：JP2004343109
申请日：2004-11-26
申请人： Daido Steel Co Ltd , Kiyohito Ishida , National Institute Of Advanced Industrial & Technology , Tohoku Tokushuko Kk , 大同特殊鋼株式会社 , 東北特殊鋼株式会社 , 独立行政法人産業技術総合研究所 , 清仁石田
发明人： ISHIDA KIYOHITO , OIKAWA MASANARI , EHATA TAKASHI , ISHIKAWA KOICHI , SHIMIZU TETSUYA
IPC分类号： C22C38/00 , C22C38/60 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a free-cutting soft magnetic stainless steel to which excellent machinability is imparted while having satisfactory magnetic properties and corrosion resistance. SOLUTION: The free-cutting soft magnetic stainless steel has a composition comprising, by mass, 0.02 to 0.15% C, 0.5 to 3.0% Si, ≤2.0% Mn, 0.1 to 0.5% S, 10 to 22% Cr, 0.01 to 4.0% Al and 0.5 to 1.5% Ti, and the balance Fe with inevitable impurities. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种具有良好的机械加工性而具有令人满意的磁性能和耐腐蚀性的自由切割软磁性不锈钢。解决方案：自由切削软磁性不锈钢具有质量分数为0.02〜0.15％，Si：0.5〜3.0％，Mn：2.0％，Cr：0.1〜0.5％，Cr：10〜22％ 0.01〜4.0％的Al和0.5〜1.5％的Ti，余量为Fe与不可避免的杂质。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2004002972A Free-cutting alloy material 有权
公开(公告)号：JP2004002972A
公开(公告)日：2004-01-08
申请号：JP2003072849
申请日：2003-03-17
申请人： Daido Steel Co Ltd , Kiyohito Ishida , Japan Industrial Technology Association , Masanari Oikawa , Tohoku Techno Arch Co Ltd , Tohoku Tokushuko Kk , 及川勝成 , 大同特殊鋼株式会社 , 東北特殊鋼株式会社 , 株式会社東北テクノアーチ , 石田清仁 , 財団法人日本産業技術振興協会
发明人： ISHIDA KIYOHITO , OIKAWA MASANARI , SHIMIZU TETSUYA , OKABE MICHIO , EHATA TAKASHI
IPC分类号： C22C19/05 , C22C38/00 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a free-cutting alloy material which is used as a base material for devices or parts requiring various characteristics necessary for a functional material and which has excellent machinability.
SOLUTION: The alloy composed of 2 to 82 mass% Ni and the balance mainly at least either one of Fe and Cr further contains: 0.002 to 0.4 mass% C: either one of Ti and Zr so as to contain 0.03 to 3.5 mass% WTi + 0.52WZr, wherein WTi(mass%) represents the content of Ti and WZr (mass%) the content of Zr; and one or more kinds selected from 0.01 to 1.5 mass% S, 0.01 to 4.5 mass% Se and 0.005 to 6 mass% Te.
COPYRIGHT: (C)2004,JPO

10. 发明专利

JPH08301696A PRODUCTION OF COMPOUND SEMICONDUCTOR CRYSTAL AND DEVICE THEREFOR 失效
公开(公告)号：JPH08301696A
公开(公告)日：1996-11-19
申请号：JP10768795
申请日：1995-05-01
申请人： SEMICONDUCTOR RES FOUND , TOHOKU STEEL
发明人： NISHIZAWA JUNICHI , EHATA TAKASHI , SAWAFUJI YUTAKA
IPC分类号： C30B11/00 , C30B29/40 , H01L21/208
摘要： PURPOSE: To inexpensively obtain a high-purity and high-quality III-V group compound polycrystal by cooling a crucible after the amount of a group V raw material in a vapor pressure control part is decreased in a specific state by an amount to form a compound with a group III raw material in a crucible. CONSTITUTION: A vapor pressure in a sealed tube is gradually raised while heating a melt in a crucible so as not to raise the temperature at the wall of the sealed quartz tube too high more than a temperature for maintaining the vapor pressure of the group V raw material in the sealed tube at a fixed pressure. Then, synthetic reaction is promoted by making the vapor pressure in the sealed tube into a proper pressure higher than the equilibrium vapor pressure of a group V element in a compound. After the melt of the compound is formed, it is solidified from the lower end of the crucible at a proper rate to give the objective semiconductor polycrystal. Since the temperature at the wall of the sealed quartz tube can be reduced to a mush lower temperature than the softening point of crucible in the production method, Si contamination is extremely lessened and the sealed tube will not cause plastic deformation even if difference in pressure between the inside and outside of the sealed tube is generated.

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