公开(公告)号：US4938810A

公开(公告)日：1990-07-03

申请号：US259402

申请日：1988-10-18

申请人： Fumio Kiyota ,  Tatsuo Fujita ,  Tadao Hirano ,  Shin'ichi Horie

发明人： Fumio Kiyota ,  Tatsuo Fujita ,  Tadao Hirano ,  Shin'ichi Horie

IPC分类号： B22F3/20 ,  C22C1/04 ,  F02F1/10 ,  F02F7/00 ,  C22C21/00

CPC分类号： F02F7/0085 ,  B22F3/20 ,  C22C1/0416 ,  F02F1/004 ,  F05C2251/042

摘要： The present invention relates to an aluminum alloy powder.Aluminum alloy powder having a high Si content is known but its heat resistance, wear resistance, and strength are poor.The aluminum alloy powder according to the present invention is characterized in that it contains from approximately 10.0% to approximately 30.0% of silicon and at least one element selected from the group consisting of from approximately 5.0% to approximately 15.0% of nickel, from approximately 3.0% to approximately 15.0% of iron, and from approximately 5.0% to approximately 15.0% of manganese, the silicon crystals in the aluminum alloy powder being 15 .mu.m or less in size. Due to the high content of nickel, iron, and manganese, the matrix is hardened and strengthed by the presence of finely dispersed intermetallic compounds and the silicon crystals, and thereby the high-temperature characteristics are improved.The shaped body, e.g., a hot-extruded shaped body, according to the present invention comprises an aluminum alloy having the above composition powder of the present invention and preferably a solid lubricant, the silicon crystals in the shaped body being 15 .mu.m or less in size, and the intermetallic compounds 20 .mu.m or less in size being finely distributed in the shaped body.The high-temperature characteristics of the shaped body are very excellent, thereby enabling it to be used as a cylinder liner which is inserted into an aluminum cylinder block body by casting the body.

摘要翻译： 本发明涉及一种铝合金粉末。 已知具有高Si含量的铝合金粉末，但其耐热性，耐磨性和强度差。 根据本发明的铝合金粉末的特征在于其含有约10.0％至约30.0％的硅和至少一种选自约5.0％至约15.0％的镍的元素，约为3.0 ％至约15.0％的铁和约5.0％至约15.0％的锰，铝合金粉末中的硅晶体的尺寸为15μm或更小。 由于镍，铁和锰的含量高，基体由于存在细微分散的金属间化合物和硅晶体而硬化和强化，从而提高了高温特性。 根据本发明的成形体，例如热挤压成型体，包括具有上述本发明组合物粉末的铝合金，优选固体润滑剂，成形体中的硅晶体为15μm或更小 其尺寸的20μm或更小的金属间化合物精细地分布在成形体中。 成形体的高温特性非常优异，因此能够用作通过铸造本体而插入到铝制缸体中的气缸套。

公开(公告)号：US4204031A

公开(公告)日：1980-05-20

申请号：US855964

申请日：1977-11-30

申请人： Kazutoshi Takemura ,  Takashi Oda ,  Fumio Kiyota

发明人： Kazutoshi Takemura ,  Takashi Oda ,  Fumio Kiyota

IPC分类号： C22C33/02 ,  C22C1/10

CPC分类号： C22C33/0257 ,  C22C33/0207 ,  B22F2998/10 ,  B22F2999/00

摘要： A novel group of iron-base sintered alloys especially suitable for valve seat manufacture having excellent wear resistance and good machinability is provided. The alloy is produced by a combination of specific atomized pre-alloyed powder, iron powder and graphite powder by compacting and sintering processes. Various manufacturing methods with or without infiltration of filler materials into pores in the sintered product to improve wear resistance and machinability are disclosed.

摘要翻译： 提供了一种新型的铁基烧结合金，特别适用于阀座制造，具有优异的耐磨性和良好的机械加工性。 该合金通过压实和烧结工艺由特定雾化的预合金粉末，铁粉和石墨粉末的组合制成。 公开了有或没有将填料材料渗透到烧结产品中的孔中以提高耐磨性和可加工性的各种制造方法。

公开(公告)号：US5861092A

公开(公告)日：1999-01-19

申请号：US932490

申请日：1997-09-18

申请人： Fumio Kiyota ,  Masaharu Hasei ,  Yukio Nakanouchi

发明人： Fumio Kiyota ,  Masaharu Hasei ,  Yukio Nakanouchi

IPC分类号： G01N27/419 ,  G01N27/409 ,  G01N27/41 ,  G01N27/416 ,  G01N27/417 ,  G01N33/00 ,  G01N27/26

CPC分类号： G01N33/0037 ,  G01N27/417

摘要： A method and a detector for detecting nitrogen oxide in test gas are provided wherein test gas which contains NOx and interference gases is supplied through an oxygen feeder 4 into a measuring chamber 1a, and the interference gases are oxidized by oxygen or oxygen ion supplied to the measuring chamber 1a through oxygen feeder 4. A total amount of NOx in the test gas is detected based on a level of EMF produced between a first electrode 2 for detecting oxygen and NO2 gas and a second electrode 3 for detecting oxygen.

摘要翻译： 提供了一种用于检测试验气体中的氮氧化物的方法和检测器，其中含有NOx和干扰气体的试验气体通过氧气进料器4供给到测量室1a中，并且干扰气体被氧或氧离子氧化供应到 测量室1a通过氧气进料器4.基于在用于检测氧气和NO 2气体的第一电极2和用于检测氧气的第二电极3之间产生的EMF水平来检测测试气体中的总量。