公开(公告)号：EP1170075A4

公开(公告)日：2004-05-12

申请号：EP00981701

申请日：2000-12-13

申请人： TOYOTA CHUO KENKYUSHO KK ,  TOYOTA MOTOR CO LTD

发明人： KONDO MIKIO ,  AWANO YOJI ,  SAWAMURA MASATOSHI ,  OKAJIMA HIROSHI ,  TAKEMOTO SHIGEHIDE

IPC分类号： B22F3/02 ,  B22F1/00

CPC分类号： B22F3/02 ,  B22F2003/026 ,  B22F2003/145

摘要： A method of forming a powder green body, capable of providing a high-density green body under a high pressure and reducing a pressure for extraction from a die, the method comprising a coating step for coating the inner surface of a heated die with a higher fatty acid lubricant, and a pressing step for filling the die with metallic powder and pressing the metallic powder under a pressure produced when the higher fatty acid lubricant chemically combines with the metallic powder to form a metallic soap film. A metallic soap film formed between the die and the green body can reduce a friction force between the die and the green body, significantly lower an extracting pressure despite a high-pressure forming, and provide a high-density green body due to a high-pressure forming.

摘要翻译： 本发明提供一种形成能够在高压下生产高密度压块的粉末压块的方法，同时可以减小压模从模具中排出的压力。 该方法包括将高级脂肪酸润滑剂涂布到加热模具的内表面的施加步骤，以及将金属粉末填充到模具中的压实步骤，并在施加高脂肪酸润滑剂的压力下压实金属粉末 与金属粉末化学结合并形成金属皂涂层。 由于金属皂涂层形成在模具和紧凑之间，因此模具和压块之间的摩擦力降低，并且即使压制高压也能够显着降低喷射压力。 此外，由于高压的压实，可以获得高密度的压块。

公开(公告)号：EP1353341A4

公开(公告)日：2007-10-31

申请号：EP02716314

申请日：2002-01-17

申请人： TOYOTA CHUO KENKYUSHO KK ,  TOYOTA MOTOR CO LTD

发明人： KONDO MIKIO ,  TAJIMA SHIN ,  HATTORI TAKESHI ,  AWANO YOJI ,  OKAJIMA HIROSHI

IPC分类号： H01F1/24 ,  B22F1/00 ,  H01F1/147 ,  H01F3/08 ,  H01F41/02

CPC分类号： B22F1/0062 ,  B22F1/0059 ,  B22F2998/00 ,  H01F1/14783 ,  H01F1/24 ,  H01F3/08 ,  H01F41/0246 ,  Y10T29/4902 ,  Y10T29/49071 ,  Y10T29/49073

摘要： A dust core produced by compacting an iron based magnetic powder coated with an insulating coating, characterized in that saturation magnetization M ≥ 1.9T in a field of 1.6 MA / m, specific resistance ς1.5 ν Φ m, flux density B2k ≥ 1.1T in a field of 2 kA/m, and flux density B10k≥1.6T in a field of 10 kA/m. According to the invention, an iron based magnetic powder can be compacted industrially under a significantly high molding pressure and a high performance dust core having high density and excellent specific resistance and permeability can be obtained.

公开(公告)号：EP0861911A4

公开(公告)日：1999-09-08

申请号：EP97937882

申请日：1997-09-02

申请人： TOYOTA MOTOR CO LTD

发明人： IKUNO HAJIME ,  HORI MASANAO ,  AWANO YOJI ,  IWANAGA SHOGO ,  NAKANO OSAMU

IPC分类号： B23K35/28 ,  C22C21/02 ,  B23K9/04 ,  B23K35/30

CPC分类号： C22C21/02 ,  B23K35/286

摘要： The alloy having excellent resistance against thermal fatigue comprises a metal matrix and heat-resistant particles X dispersed in the matrix and having a shorter diameter of less than 20 mu m and a longer diameter of less than 50 mu m, the heat-resistant particles being contained in an amount of 5 to 25 % by volume, and the thermally unstable deposited particles being contained in said matrix in an amount of not more than 1 % by weight. The aluminum alloy having excellent resistance against thermal fatigue contains 4 to 12 % by weight of Si, not more than 0.2 % by weight of Cu, and not more than 0.2 % by weight of Mg, the remainder being aluminum and impurities. The aluminum alloy member forms a highly resistant portion against thermal fatigue by padding said alloy on the surface of the aluminum alloy base metal where thermal strain concentrates.

摘要翻译： 具有优异的耐热疲劳性的合金包括分散在基质中的金属基体和耐热颗粒X，其直径小于20μm，直径小于50μm，耐热颗粒为 其含量为5〜25体积％，所述基质中含有不大于1重量％的热不稳定沉积粒子。 耐热疲劳性优异的铝合金含有4〜12重量％的Si，0.2重量％以下的Cu，0.2重量％以下的Mg，余量为铝和杂质。 铝合金构件通过在热应变集中的铝合金基底金属的表面上填充所述合金而形成抵抗热疲劳的高阻力部分。