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1. 发明专利

CA2284139A1 FLAT-PARTICLE IRON POWDER, METHOD FOR MAKING THE SAME AND POWDER MAGNETIC CORE USING THE SAME 未知
公开(公告)号：CA2284139A1
公开(公告)日：2000-03-30
申请号：CA2284139
申请日：1999-09-28
申请人： KAWASAKI STEEL CO , VICTOR COMPANY OF JAPAN
发明人： MURAI TSUNEO , OZAKI YUKIKO , YASHIRO TSUTOMU , OGURA KUNIAKI , HISHIKI HIDEO
IPC分类号： H01F1/20 , H01F1/24 , H01F3/08 , H01F41/02 , C01G49/00 , B22F1/00 , H01F1/00
摘要： A flat-particle iron powder, composed of reduced iron powder obtained by reducing iron oxide, has an average aspect ratio of at least 5 and an average ferrite grain size of 2 to 20 .mu.m, is preferably used for a powder magnetic core, has high permeability over a higher frequency region, and is covered with a compound having an amine-quinone-repeating unit to further improve its magnetic characteristics.

2. 发明专利

JP2000173504A MAGNETIC FIELD CORRECTING MAGNETIC ELEMENT, MULTIPOLE CORE, DEFLECTION YOKE AND SUB-DEFLECTION YOKE 失效
公开(公告)号：JP2000173504A
公开(公告)日：2000-06-23
申请号：JP27181499
申请日：1999-09-27
申请人： VICTOR COMPANY OF JAPAN , KAWASAKI STEEL CO
发明人： HISHIJO HIDEO , WATANABE TAKAO , YASHIRO TSUTOMU , OZAKI YUKIKO , OGURA KUNIAKI
IPC分类号： H01J29/76
摘要： PROBLEM TO BE SOLVED: To provide a magnetic field correcting magnetic element for deflection magnetic field correcting and a core having an improved reliability and frequency characteristics and allowing improvement of the core loss in high frequencies and frequency characteristics of magnetic permeability, the use at higher frequencies and mechanical strength and suppression of rust. SOLUTION: A magnetic field correcting magnetic element 6 is arranged for correcting convergence or raster distortion against deflection magnetic field caused by a horizontal and vertical deflection coils mounted between a tube neck and a funnel of a color cathode-ray tube having an inline electron gun generating a plurality of electron beams along a horizontal deflection axis. Ferromagnetic material including flat iron powder, which is provided by reducing oxide and 5-400 of mean aspect ratio and 2-20 μm of mean ferrite particle diameter is mixed with binder to compression-mold and heat cure to form the element 6. Accordingly, it becomes possible to improve the core loss in high frequencies and frequency characteristics of magnetic permeability and allow the use at higher frequencies and suppress rust and improve mechanical strength, reliability and frequency characteristics.

3. 发明专利

JP2000169901A FLAT IRON POWDER FOR COMPRESSED POWDER MAGNETIC CORE, AND COMPRESSED POWDER MAGNETIC CORE 失效
公开(公告)号：JP2000169901A
公开(公告)日：2000-06-20
申请号：JP27938799
申请日：1999-09-30
申请人： KAWASAKI STEEL CO , VICTOR COMPANY OF JAPAN
发明人： OZAKI YUKIKO , OGURA KUNIAKI , YASHIRO TSUTOMU , MURAI TSUNEO , HISHIJO HIDEO
IPC分类号： H01F1/22 , B22F1/00 , B22F1/02 , B22F9/04
摘要： PROBLEM TO BE SOLVED: To provide corrosion resistance and to improve DC initial permeability over a high-frequency region by using, as a raw material, a spongy reduced iron powder of pure iron prepared by reducing iron oxide, working it into flat-like state, further applying annealing, and regulating aspect ratio and ferrite grain size to specific values, respectively. SOLUTION: A reduced iron powder, consisting of spongy pure iron prepared by reducing iron oxide such as mill scale, is worked into flat form together with auxiliaries, such as metallic soap and wax, by using a vibrating ball mill, etc., and annealed in hydrogen at prescribed temperature. The resultant sinter cake is crushed and screened and regulated, desirably, to about

4. 发明专利

JP2000160204A IRON POWDER FOR DUST CORE AND DUST CORE 失效
公开(公告)号：JP2000160204A
公开(公告)日：2000-06-13
申请号：JP26684299
申请日：1999-09-21
申请人： KAWASAKI STEEL CO , VICTOR COMPANY OF JAPAN
发明人： OZAKI YUKIKO , OGURA KUNIAKI , YASHIRO TSUTOMU , MURAI TSUNEO , HISHIJO HIDEO
IPC分类号： H01F1/22 , B22F1/02 , B22F3/00 , B22F9/20 , H01F1/26
摘要： PROBLEM TO BE SOLVED: To provide iron powder for a dust core and a dust core excellent in high frequency characteristics. SOLUTION: Iron powder is obtd. by coating reduced iron powder in which the average grain size of ferritic grains is controlled to 2 to 20 μm with a compound using amine-quinone as a constitutional component, preferably with an amine-quinone-polyurethane resin, and the dust core is obtd. by subjecting the iron powder coating to compression molding using a binder such as a thermosetting resin. When the binder is mixed with an amine-quinone-polyurethane resin, its magnetic properties, rust preventability and mechanical strength in a high frequency region are moreover made better.

5. 发明申请

WO0149439A8 IRON-BASE POWDER MIXTURE FOR POWDER METALLURGY, METHOD FOR PRODUCTION THEREOF AND METHOD FOR PREPARING FORMED PRODUCT 审中-公开
标题翻译：用于粉末冶金的铁基粉末混合物，其生产方法和制备成型产品的方法
公开(公告)号：WO0149439A8
公开(公告)日：2001-09-13
申请号：PCT/JP0009243
申请日：2000-12-26
申请人： KAWASAKI STEEL CO
发明人： OZAKI YUKIKO , UENOSONO SATOSHI , OGURA KUNIAKI
IPC分类号： B22F1/00 , B22F1/02 , B22F3/02 , C22C33/02 , C10M105/22 , C10M105/68
CPC分类号： B22F1/0062 , B22F1/0059 , B22F1/0077 , B22F1/0096 , B22F2003/145 , B22F2998/00 , C22C33/0207
摘要： An iron-base powder mixture containing an iron-base powder, a lubricant having been fused and adhered to the iron-base powder, a powder for an alloy adhered to the iron-base powder through the lubricant, and a free lubricant powder, characterized in that one or more of the above iron-base powder, the above lubricant having been fused and adhered to the iron-base powder, the above free lubricant powder, and the above powder for an alloy have a surface which is coated with an organosiloxane with a covering percentage of 80 % or more; and a method for producing the iron-base powder mixture. The iron-base powder mixture is excellent in flowability and formability, and also is reduced in the temperature dependency of flowability and green density. It is preferred that the organosiloxane has a phenyl group, the lubricant having been fused and adhered to the iron-base powder is a co-molten product of a calcium soap with a lithium soap or a co-molten product of a calcium soap with an amide lubricant, and the free lubricant is a lithium soap or a mixed powder of an amide lubricant with a poly(methyl methacrylate) powder.
摘要翻译：一种铁基粉末混合物，其含有铁基粉末，已经熔融并粘附到铁基粉末上的润滑剂，通过润滑剂粘合到铁基粉末上的合金粉末和游离润滑剂粉末，其特征在于由于上述铁基粉末中的一种或多种，上述润滑剂已被熔融并粘附到铁基粉末，上述游离润滑剂粉末和上述合金粉末上，其表面涂有有机硅氧烷覆盖率达80％以上; 和铁基粉末混合物的制造方法。铁基粉末混合物的流动性和成形性优异，并且还降低了流动性和绿色密度的温度依赖性。优选有机硅氧烷具有苯基，已经熔融并粘附到铁基粉末上的润滑剂是钙皂与锂皂或钙皂的共熔融产物的共熔融产物，酰胺润滑剂，游离润滑剂为锂皂或酰胺润滑剂与聚（甲基丙烯酸甲酯）粉末的混合粉末。

6. 发明专利

DE69810032D1 未知
公开(公告)号：DE69810032D1
公开(公告)日：2003-01-23
申请号：DE69810032
申请日：1998-08-25
申请人： KAWASAKI STEEL CO
发明人： UENOSONO SATOSHI , OZAKI YUKIKO , OGURA KUNIAKI , NAGASE TOSHIO , KOBAYASHI TAKEO
IPC分类号： B22F1/00 , C08K3/08 , C08K9/04
摘要： An iron-based powder mixture for powder metallurgy, comprising: an iron-based powder, and from 0.05 to 0.50 % by weight of a thermoplastic resin powder which comprises 50 % or more by weight of units of at least one monomer selected from the group consisting of acrylic esters, methacrylic esters, and aromatic vinyl compounds, and whose average primary particle size is from 0.03 to 5 mu m, whose average agglomeration particle size is from 5 to 50 mu m, and whose average molecular weight measured by the specific viscosity of a solution is from 30000 to 5000000.

7. 发明专利

CA1339554C COMPOSITE ALLOY STEEL POWDER AND SINTERED ALLOY STELL 未知
公开(公告)号：CA1339554C
公开(公告)日：1997-11-25
申请号：CA587546
申请日：1989-01-05
申请人： KAWASAKI STEEL CO
发明人： TAKAJO SHIGEAKI , FURUKIMI OSAMU , OGURA KUNIAKI , MARUTA KEIICHI , ABE TERUYOSHI , SAKURADA ICHIO
IPC分类号： C22C38/12
摘要： Provided herein are high-strength high-toughness sintered alloy steel and composite alloy steel powder useful for the production thereof. The sintered alloy steel contains, as the alloy components in the final product, Ni, Mo, and/or W, and C, if necessary, said alloy being composed of 0.50-3.50 wt% of Ni, 0.65-3.50 wt% of Mo + 1/2W, (and 0.3-0.8 wt% of C, if necessary), and the remainder of Fe and inevitable impurities, and has a density higher than 7.0 g/cm3 and a tensile strength higher than 130 kgf/mm2 after quenching and tempering. The composite alloy steel powder is composed of iron powder particles and powdery alloy components attached by diffusion to part of the surface of the iron powder particles, with the content of Ni and the content of Mo + 1/2W in the steel powder of particle diameter smaller than 45 .mu.m being in the range of 2.0-4.2 times the average content in the entire steel powder. The sintered alloy steel has high strength and high toughness despites its comparatively low alloy composition and can be produced without any special equipment. The heat-treated sintered steel meets the requirements for automotive parts and the like.

8. 发明公开

EP0618027A4 IRON POWDER AND MIXED POWDER FOR POWDER METALLURGY AND PRODUCTION OF IRON POWDER. 失效
标题翻译：铁粉混合粉粉末冶金铁粉制造。
公开(公告)号：EP0618027A4
公开(公告)日：1996-05-29
申请号：EP93919676
申请日：1993-09-17
申请人： KAWASAKI STEEL CO
发明人： OGURA KUNIAKI , ISHIKAWA HIROYUKI , OMURA TAKEO , MAEDA YOSHIAKI , NITTA MINORU , OHTUBO HIROSHI , YOSHII HIROSHI
IPC分类号： C22C32/00 , C22C33/02 , B22F1/00 , B22F9/22
CPC分类号： C22C33/0264 , C22C32/0026
摘要： An iron powder and mixed powder for powder metallurgy as raw materials for producing sintered mechanical components by adding Cu powder and graphite powder to iron powder and rolling and sintering the mixture, 0.008 to 0.5 wt.% of at least one kind of element selected from elements having a value of oxide standard formation free energy of not greater than 120 kcal/mol o2 at 1,000 C is contained in the iron powder and not less than 20 % of the element(s) consists of an oxide, while 0.01 to 0.20 wt.% of at least one kind of oxide powder of an element having a value of oxide standard formation free energy of not greater than -120 kcal/mol o2 at 1,000 C is blended in the mixed powder. In this way, diffusion of C (carbon) from graphite added into iron powder particles is restricted at the time of sintering, and dimensional change accuracy of the sintered product is improved.

9. 发明公开

EP0853994A4 IRON-BASE POWDER MIXTURE FOR POWDER METALLURGY HAVING EXCELLENT FLUIDITY AND MOLDABILITY AND PROCESS FOR PREPARING THE SAME 失效
标题翻译：粉合剂对铁基，具有出色的FLY粉末冶金 - 和表单属性和方法及其
公开(公告)号：EP0853994A4
公开(公告)日：2002-03-27
申请号：EP97900114
申请日：1997-01-09
申请人： KAWASAKI STEEL CO
发明人： OZAKI YUKIKO , UESOSONO SATOSHI , OGURA KUNIAKI
IPC分类号： B22F1/00 , B22F1/02 , C22C33/02
CPC分类号： B22F1/0062 , B22F1/0059 , B22F1/0077 , B22F1/0096 , B22F1/02 , B22F2003/023 , B22F2003/145 , B22F2998/00 , C22C33/02 , C22C33/0207
摘要： An iron-base powder mixture for powder metallurgy which exhibits enhanced fluidity and moldability when heated to about 423 K and filled into a mold for molding is prepared by adding a surface modifier to an iron-base powder and an alloying powder, conducting primary mixing to prepare an iron-base powder mixture, adding at least one member selected from the group consisting of fatty acid amides, metallic soaps having higher melting points than the fatty acid amides, thermoplastic resins, thermoplastic elastomers, and inorganic and organic compounds having lamellar crystal structures to the iron-base powder mixture to conduct secondary mixing, agitating thereafter the mixture while heating to at least the melting point of the added amide to melt the amide, cooling the mixture while mixing the same to adhere the alloying powder and the lubricant having a higher melting point than the amide onto the surface of the iron powder by taking advantage of the binding force of the melt, and adding thereto, during cooling, at least one member selected from the group consisting of metallic soaps, thermoplastic resin and thermoplastic elastomer powders, and inorganic and organic compounds having lamellar crystal structures to conduct tertiary mixing.
摘要翻译：有在粉末冶金优异的流动性和成形性的铁基粉末组合物提供。的粉末冶金用铁基粉末组合物中雅舞蹈产生用包含以下步骤的方法：加入铁基和合金粉末，用于初级混合，表面处理剂，另外，对于二次混合，一脂肪酸酰胺和至少一种润滑剂，worin润滑剂具有比脂肪酸酰胺的更高的熔点，并且选自包括，热塑性树脂，热塑性弹性体，和具有层状晶体结构的无机或有机的化合物中选择; 加热和搅拌达超过脂肪酸酰胺以熔化脂肪酸酰胺的熔点的温度下的二次混合后的混合物; 冷却，在混合的同时，进行加热和搅拌处理该混合物，以便做的合金用粉末和具有比脂肪酸酰胺更高的熔点的润滑剂通过在粘合力粘附到进行了表面处理的铁基粉末的表面熔体; 和添加在冷却的时候，对于第三次混合，金属皂和选自包括热塑性树脂或热塑性弹性体粉末和具有层状晶体结构的无机或有机化合物中的至少一种类型。将混合物加热到约423K，并装入用于压缩的模具。

10. 发明专利

CA2243139C IRON-BASED POWDER MIXTURE FOR POWDER METALLURGY AND PROCESS FOR PREPARING THE SAME 未知
公开(公告)号：CA2243139C
公开(公告)日：2006-08-22
申请号：CA2243139
申请日：1998-08-28
申请人： KAWASAKI STEEL CO
发明人： OZAKI YUKIKO , UENOSONO SATOSHI , NAGASE TOSHIO , KOBAYASHI TAKEO , OGURA KUNIAKI
IPC分类号： B22F1/00 , B22F9/00 , C08K3/08 , C08K9/04
摘要： An iron-based powder mixture for powder metallurgy, comprising: an iron-based powder, and from 0.05 to 0.50 % by weight of a thermoplastic resin powder which comprises 50 % or more by weight of units of at least one monomer selected from the group consisting of acrylic esters, methacrylic esters, and aromatic vinyl compounds, and whose average primary particle size is from 0.03 to 5 .mu.m, whose average agglomeration particle size is from 5 to 50 .mu.m, and whose average molecular weight measured by the specific viscosity of a solution is from 30000 to 5000000.

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