公开(公告)号：US5989734A

公开(公告)日：1999-11-23

申请号：US934754

申请日：1997-09-22

申请人： Hirohisa Miura ,  Nagayoshi Matsubara ,  Yasuhiro Yamada ,  Haruzo Katoh ,  Takashi Watsuji

发明人： Hirohisa Miura ,  Nagayoshi Matsubara ,  Yasuhiro Yamada ,  Haruzo Katoh ,  Takashi Watsuji

IPC分类号： C23C10/36 ,  C23C10/30 ,  C23C10/58 ,  C23C12/02 ,  B32B15/00

CPC分类号： C23C12/02 ,  C23C10/30 ,  Y10T428/12778

摘要： An aluminum product having the metal diffusion layer in the present invention has, on the surface thereof, a metal diffusion layer comprising aluminum and a diffusion metal which is diffused setting aluminum as a matrix and which includes at least one selected from the group consisting of Ni, Cr, Cu, Zn, Mg, Ti and Ag; wherein the diffusion layer is formed by diffusing inclinatorily not less than 1 .mu.m from the surface thereof; and the diffusion metal is not less than 1.0% by weight when the whole of the metal diffusion layer is set to be 100% by weight. Also, in a process for producing an aluminum product having a metal diffusion layer, the surface of the aluminum product is brought into contact with the processing agent including at least the diffusion metal powder; and in this state by conducting heat treatment in the atmosphere including nitrogen, the diffusion metal is diffused on the surface of the aluminum product and the metal diffusion layer is formed. Thus, the present invention supplies the aluminum product having the metal diffusion layer on the surface thereof and the process for producing the aluminum product having this kind of metal diffusion layer on the surface thereof.

摘要翻译： 本发明的具有金属扩散层的铝制品在其表面上具有包含铝和扩散金属的金属扩散层，扩散金属以铝为基质扩散，并且包括选自Ni ，Cr，Cu，Zn，Mg，Ti和Ag; 其特征在于，所述扩散层通过从其表面不均匀地扩散至少1μm而形成。 并且当全部金属扩散层设定为100重量％时，扩散金属不小于1.0重量％。 此外，在具有金属扩散层的铝制品的制造方法中，使铝制品的表面与至少包含扩散金属粉末的处理剂接触， 通过在包括氮的气氛中进行热处理，在该状态下，扩散金属扩散到铝制品的表面，形成金属扩散层。 因此，本发明在其表面上提供具有金属扩散层的铝制品及其表面上具有这种金属扩散层的铝制品的制造方法。

公开(公告)号：US6159439A

公开(公告)日：2000-12-12

申请号：US137755

申请日：1998-08-21

申请人： Hirohisa Miura ,  Nagayoshi Matsubara ,  Masaoki Hashimoto ,  Junichi Yokka

发明人： Hirohisa Miura ,  Nagayoshi Matsubara ,  Masaoki Hashimoto ,  Junichi Yokka

IPC分类号： C01B21/072 ,  C04B35/626

CPC分类号： C01B21/0722 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/21

摘要： A process for producing aluminum nitride comprises a step of nitriding directly a mixed powder comprising of, a bulky aluminum powder composed of aluminum or an aluminum alloy powder which occupies 50 to 97% by weight and whose sieve opening of JIS is not less than 210 .mu.m (70 mesh); and a nitriding accelerator powder composed of at least one kind of an aluminum powder and an aluminum alloy powder which occupy the balance of 50 to 3% by weight and whose sieve opening is less than 210 .mu.m (70 mesh); under a nitrogen gas atmosphere of the temperature ranging from 500 to 1000.degree. C. In the present invention, there can be obtained an aluminum nitride which is easy to be crushed by hand by using a mortar.

摘要翻译： 一种氮化铝的制造方法，其特征在于，包括将由铝或铝合金粉末构成的体积大的铝粉末占50〜97重量％，JIS的筛孔为210μm以上的混合粉末直接氮化的工序 m（70目）; 和由至少一种铝粉和铝合金粉末构成的氮化促进剂粉末，其占50〜3重量％，筛孔小于210μm（70目）; 在500〜1000℃的氮气气氛下进行。在本发明中，可以使用研钵容易地用手压碎的氮化铝。

公开(公告)号：US20070215308A1

公开(公告)日：2007-09-20

申请号：US11569149

申请日：2005-05-16

申请人： Nagayoshi Matsubara ,  Takashi Koide ,  Kiyoshi Fujino

发明人： Nagayoshi Matsubara ,  Takashi Koide ,  Kiyoshi Fujino

IPC分类号： B22D18/04 ,  B22D27/13 ,  B22D18/00 ,  B22D17/06

CPC分类号： B22D18/04 ,  B22D15/005 ,  B22D27/11

摘要： The present invention is to provide a vertical casting apparatus capable of easily manufacturing castings without causing shrinkage cavities and entrainment of gas, by filling a molten metal into a mold cavity at a high speed and by effectively pressurizing the molten metal in the closed cavity, which has high work efficiency, ease of maintenance, and a low cost of equipment, and a vertical casting method using the vertical casting apparatus. The vertical casting apparatus is provided with an apparatus body comprising a fixed mold 1 on the lower side and a movable mold 2 on the upper side, a closing means 13 for closing a molten metal in-flow gate 10 formed in the fixed mold 1, and a pressurizing means 20 for pressurizing the molten metal in the closed mold cavity, and a casting means for supplying and filling the molten metal into the mold cavity from the underside. The casting means has a gas-pressurized molten metal pouring ladle 6 attachable to and detachable from the apparatus body.

摘要翻译： 本发明提供一种垂直铸造设备，其能够通过将熔融金属以高速填充到模腔中并且有效地对封闭空腔中的熔融金属加压，从而容易地制造铸件而不引起收缩空腔和夹带气体， 具有高的工作效率，易于维护和低成本的设备，以及使用垂直铸造设备的垂直铸造方法。 垂直铸造装置设置有包括下侧的固定模具1和上侧的可动模具2的装置本体，用于封闭形成在固定模具1中的熔融金属流入口10的封闭装置13， 以及用于对封闭的模腔中的熔融金属加压的加压装置20，以及用于从下侧将熔融金属供给和填充到模腔中的铸造装置。 铸造装置具有可附装到装置本体上并可从其拆卸的气体加压熔融金属浇注浇包6。