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11. 发明专利

JPH07188714A IRON-BASED POWDER EXCELLENT IN COMPACTIBILITY 失效
公开(公告)号：JPH07188714A
公开(公告)日：1995-07-25
申请号：JP33869493
申请日：1993-12-28
申请人： KOBE STEEL LTD
发明人： SAWAYAMA TETSUYA , SEKI YOSHIKAZU , TANAKA HIROYUKI , SATO MASAAKI
IPC分类号： B22F9/08 , B22F1/00
摘要： PURPOSE:To produce an iron-based powder excellent in compactibility by producing iron-based powder contg. a specified amt. of oxygen by an atomizing method, reducing the surface layer part and forming many ruggedness on the surface. CONSTITUTION:An iron-based material is subjected to atomizing treatment in an atmosphere increased in the concn. of oxygen to produce iron-based powder in which the content of oxygen is increased by >1.5 to 10wt.%. Then, the surface layer part of this iron-based powder is subjected to reducing treatment in an atmosphere contg. hydrogen to form many ruggedness on the surface. Thus, the iron-based powder excellent in compactibility can be obtd., which is useful as the raw material for various iron-based sintered member.

12. 发明专利

JPH0453085B2 失效
公开(公告)号：JPH0453085B2
公开(公告)日：1992-08-25
申请号：JP28012285
申请日：1985-12-11
申请人： KOBE STEEL LTD
发明人： SATO MASAAKI , IGAI YOSHIHIRO , SAKUMA HITOSHI , NAKAHARA KANJI , NIIMURA TETSUSABURO , SUGAWARA HIROFUMI
IPC分类号： B22F1/00 , C22C38/00 , C22C38/60 , H01F1/20

13. 发明专利

JPH01219101A IRON POWDER FOR POWDER METALLURGY AND PRODUCTION THEREOF 失效
公开(公告)号：JPH01219101A
公开(公告)日：1989-09-01
申请号：JP4393488
申请日：1988-02-25
申请人： KOBE STEEL LTD
发明人： SATO MASAAKI , HAYAMI TAKEHIKO , SAKUMA HITOSHI
IPC分类号： B22F1/00
摘要： PURPOSE:To produce iron powder for powder metallurgy causing no segregation of a component during handling and giving a homogeneous sintered product by uniformly mixing iron powder with alloying element powder and a lubricant in a specified ratio and heating the mixture to the m.p. of the lubricant or above. CONSTITUTION:88.7-99.6wt.% iron powder is uniformly mixed with 0.1-10wt.% alloying element powder and 0.3-1.3wt.% lubricant and the mixture is heated to the m.p. of the lubricant or above. Zinc stearate or lithium stearate may be used as the lubricant and graphite, Ni, Cr or Mo as the alloying element. The alloying element powder and the lubricant are uniformly dispersed and fixed on the surface of the iron powder to obtain iron powder for powder metallurgy causing no segregation of a component during handling and giving a homogeneous sintered product.

14. 发明专利

JPS61223101A ATOMIZED IRON POWDER FOR GREEN COMPACT MAGNETIC POWDER AND PRODUCTION THEREOF 失效
公开(公告)号：JPS61223101A
公开(公告)日：1986-10-03
申请号：JP6612785
申请日：1985-03-28
申请人： KOBE STEEL LTD
发明人： SAKUMA HITOSHI , SATO MASAAKI , SHIMODA MASAHIRO , YAMAGAMI TORU , YOROZUDO HIROMUNE , HORISHITA HIROMICHI
IPC分类号： C22C33/02 , B22F1/00 , H01F1/20
摘要： PURPOSE:To produce atomized iron powder for a green compact magnetic material having the magnetic characteristics equal to or better than the magnetic characteristics of electrolytic iron powder by subjecting pure atomized iron powder to plastic deformation to be made into the flat shape having specific apparent density and particle thickness then subjecting the same to an annealing treatment. CONSTITUTION:The atomized iron powder having the compsn. consisting, by weight %, of composite grain size and 2.0-3.2g/cm single grain size each, the thickness is as flat as 5-70mu, the grain size distribution is >99% 42 mesh pass and >85% 60 mesh pass, the green density when molded under 5 tons/cm is >6.95g/cm and the ferrite grain size is

15. 发明专利

JP2010111937A High-strength composition iron powder and sintered component using the same 有权
标题翻译：高强度组合物粉末和使用其的烧结组分
公开(公告)号：JP2010111937A
公开(公告)日：2010-05-20
申请号：JP2008287856
申请日：2008-11-10
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： SATO MASAAKI , FURUTA TOMOYUKI , KUDO TAKAHIRO , TSUCHIDA TAKEHIRO
IPC分类号： B22F1/00 , C22C22/00 , C22C33/02 , C22C38/00 , C22C38/16
CPC分类号： C22C38/04 , B22F2003/023 , B22F2003/026 , C22C1/1084 , C22C33/0207 , C22C33/0264
摘要： PROBLEM TO BE SOLVED: To provide raw material powder using inexpensive alloy elements substituting for expensive alloy elements such as Ni and Mo as raw material for a sintered component obtained by compacting metal powder then sintering the compacted metal powder, and to provide a sintered component using the raw material powder. SOLUTION: Iron base powder is blended with Fe-Mn powder having a grain size of ≤45 μm and an Mn content of 60 to 90 mass% in the addition amount ratio in the range of 0.5 to 3 mass%, Cu powder and graphite powder in the addition amount ratio in the ranges of 1 to 3 mass% and of 0.3 to 1 mass%, respectively, a powder lubricant for die molding in the addition amount ratio in the range of 0.4 to 1.2 mass%, and Fe-Mn powder in the addition amount ratio in the range of 0.1 to 1 with respect to the Cu powder, so that the high-strength composition iron powder is produced. By compacting the raw material iron powder and sintering the compacted iron powder at a temperature higher than the melting point of Cu, a high-strength sintered component having a tensile strength of ≥580 MPa can be actualized without using expensive alloy elements such as Ni and Mo. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供使用廉价的合金元素代替贵金属元素如Ni和Mo作为原料的原料粉末，作为通过压制金属粉末获得的烧结组分的原料，然后烧结压实的金属粉末，并提供一种使用原料粉末的烧结成分。解决方案：将铁基粉末与0.5〜3质量％的添加量比的粒径≤45μm，Mn含量为60〜90质量％的Fe-Mn粉末，Cu粉末石墨粉末的添加量比例分别为1〜3质量％和0.3〜1质量％，添加量比为0.4〜1.2质量％的模具成形用粉末润滑剂，Fe -Mn粉末，相对于Cu粉末，添加量比例为0.1〜1，制成高强度组合物铁粉末。通过压制原料铁粉并在高于Cu的熔点的温度下烧结压实的铁粉，可以实现抗拉强度≥580MPa的高强度烧结组分，而不使用昂贵的合金元素如Ni和版权所有（C）2010，JPO＆INPIT

16. 发明专利

JP2009019254A Molding method of large-sized high-density green compact 有权
标题翻译：大尺寸高密度绿色压缩成型方法
公开(公告)号：JP2009019254A
公开(公告)日：2009-01-29
申请号：JP2007184623
申请日：2007-07-13
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： MITANI HIROYUKI , HOJO TAKAFUMI , SATO MASAAKI
IPC分类号： B22F3/02 , B22F3/00 , B22F3/035 , B30B11/00 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a molding method of large-sized high density green compacts capable of obtaining healthy green compacts having no crack generated at the time of drawing out the green compacts from a mold.
SOLUTION: The molding method of large-sized high-density green compacts which have a green compact density of 7.60 g/cm
3 or higher, a circumcircle diameter of 100 mm or larger, and a green compact height of 30 mm or higher by the mold lubrication molding method or hot mold lubrication molding method, is characterised by using a mold 4 with a taper 4a formed for drawing out, of which the grade X is prescribed at a certain value within the range of 1/1,000-1/10, setting the molding drawing out speed Y (mm/s) so as to satisfy Y≤10X
0.3 when (1/1,000)≤X≤(1/200) and Y≤-40X
2 -4X+2 when (1/200)
摘要翻译：要解决的问题：提供一种能够获得在从模具中拉出生坯时不产生裂纹的健康生坯的大型高密度生坯的成型方法。解决方案：具有生坯密度为7.60g / cm 3以上，外径为100mm以上的大型高密度生坯的成型方法，以及通过模具润滑成型方法或热模具润滑成型方法的30mm以上的压坯高度，其特征在于使用具有形成为拉拔的锥形4a的模具4，其中X级规定在范围为1 / 1,000-1 / 10，当（1 / 1,000）≤X≤（1/200）时，将成型拉拔速度Y（mm / s）设定为满足Y≤10X 0.3 ），当（1/200） 2 -4X + 2，从模具4中取出生坯，（P）版权所有（C）2009，JPO＆INPIT

17. 发明专利

JP2007023318A High strength member having excellent self-consistency after breakage division, and powdery mixture for obtaining the high strength member 有权
标题翻译：破碎部后具有优异的自相关性的高强度成员，以及用于获得高强度成员的粉末混合物
公开(公告)号：JP2007023318A
公开(公告)日：2007-02-01
申请号：JP2005204722
申请日：2005-07-13
申请人： Honda Motor Co Ltd , Kobe Steel Ltd , 本田技研工業株式会社 , 株式会社神戸製鋼所
发明人： TAKADA KENTARO , IIDA ZENJI , SATO MASAAKI , TAKADA MINORU
IPC分类号： B22F1/00 , C22C33/02 , C22C38/00 , C22C38/12
摘要： PROBLEM TO BE SOLVED: To provide a high strength member having satisfactory self-consistency after breakage division, and to provide a powdery mixture used as raw material for obtaining the high strength member.
SOLUTION: The powdery mixture for a high strength member contains: prealloy type steel powder; pure iron powder; graphite powder; and Cu powder. The prealloy type steel powder contains one or more kinds selected from the group consisting of Ni, Mo and Mn in amount of 0.6 to 1.55% in total based on the prealloy type steel powder, and, provided that the total of the prealloy type steel powder and the pure iron powder is 100%, the graphite powder is contained in amount of 0.30 to 0.8% and the Cu powder is contained in amount of 0.5 to 3.5%, and also, the graphite powder, the Cu powder and the alloy components are contained in amount of ≥1.9% in total.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种在断裂分割后具有令人满意的自密实度的高强度部件，并提供用作获得高强度部件的原料的粉末混合物。
解决方案：用于高强度部件的粉末混合物包含：预合金型钢粉末; 纯铁粉; 石墨粉和Cu粉。该预合金型钢粉末，相对于前合金型钢粉末，含有总量为0.6〜1.55％的由Ni，Mo，Mn组成的组中选出的一种或多种，并且前合金型钢粉末纯铁粉末为100％，石墨粉的含量为0.30〜0.8％，Cu粉末的含量为0.5〜3.5％，石墨粉末，Cu粉末和合金成分为总量为百分之一点九。版权所有（C）2007，JPO＆INPIT

18. 发明专利

JP2002003980A COMPACT BY POWDER METALLURGY AND ITS PRODUCTION METHOD 失效
公开(公告)号：JP2002003980A
公开(公告)日：2002-01-09
申请号：JP2001159523
申请日：2001-05-28
申请人： KOBE STEEL LTD
发明人： SATO MASAAKI , SUZUKI HIRONORI , AKAGI NOBUAKI , KAWAI SHINYA , LUTHERAN MICHAEL E
IPC分类号： B22F1/00 , C22C33/02 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide a compact by powder metallurgy excellent in machinability without deteriorating its essential fatigue strength to cope with an even- increasing demand for the compact by powder metallurgy having high precision and complicated shape in recent years, and to provide its production method. SOLUTION: In this invention, iron crystal grains in a compacted product by powder metallurgy are refined by using iron powder obtained by dispersing machinability improving components into iron crystal grains, so that its fatigue strength is improved.

19. 发明专利

JP2001223107A METHOD OF COMPRESSION MOLDING SOFT MAGNETIC POWDER 失效
公开(公告)号：JP2001223107A
公开(公告)日：2001-08-17
申请号：JP2000032309
申请日：2000-02-09
申请人： KOBE STEEL LTD
发明人： MITANI HIROYUKI , TSUCHIDA TAKEHIRO , SEKI YUICHI , KAGAWA MASAHIKO , SAWAYAMA TETSUYA , SEKI YOSHIKAZU , SATO MASAAKI
IPC分类号： H01F1/24 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a method of compression molding a soft magnetic power, with which the density and strength of a compression mold can be increased and a compression mold that has excellent mechanical and magnetic characteristics and does not lower electrical resistance can be manufactured. SOLUTION: An inner wall surface of a forming die is coated with a lubricate by using soft magnetic powder having a surface covered with a glass-like insulating layer containing P, Mg, B and Fe as essential components. The soft magnetic powder is compression molded at room temperature of higher, but lower than 50 deg.C without mixing with the lubricate and then the mold is annealed at 50 to 400 deg.C.

20. 发明专利

JPH02170901A PHOSPHORUS-CONTAINING STEEL POWDER AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH02170901A
公开(公告)日：1990-07-02
申请号：JP32394288
申请日：1988-12-21
申请人： KOBE STEEL LTD
发明人： SAKUMA HITOSHI , HAYAMI TAKEHIKO , SATO MASAAKI , HANAOKA HIROTAKA
IPC分类号： B22F1/02
摘要： PURPOSE:To easily manufacture phosphorus-containing steel powder having a uniform phosphorus content and good compressibility at the time of compacting the powder by mixing powder of pure iron or low alloyed steel with phosphate solution and forming a phosphate film on the surface of the above powder. CONSTITUTION:The powder of pure iron or low alloyed steel and the phosphate solution are mixed to form the phosphate film on the surface of the above powder. Then, reduction-treatment is applied to the powder of pure iron or low alloyed steel, and it is desirable to execute mixing with the above phosphate solution after activating the surface. Further, it is desirable to economically use the phosphate solution by mixing while dripping the above solution on the above powder. By this method, the phosphorus-containing steel powder having uniformly distributed the phosphorus is obtd., and by using this, the green compact can be formed which has good compressibility and uniform phosphorus distribution and is possible to secure exact dimensional accuracy and the prescribed strength.

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