-
公开(公告)号：US4973516A
公开(公告)日：1990-11-27
申请号：US330084
申请日：1989-03-09
申请人： Hidenori Yamaoka , Yoshinao Kobayashi , Kuri Suga
发明人： Hidenori Yamaoka , Yoshinao Kobayashi , Kuri Suga
CPC分类号： F16J15/122 , Y10T428/25 , Y10T428/26 , Y10T428/269 , Y10T428/30
摘要： A gasket for use in internal combustion engines characterized in that one or both surfaces of a metallic or non-metallic sheet thereof are coated with a coat layer of a thickness of from 10 to 300 .mu.m composed of a coating material comprising from 20 to 60% by weight of expanded graphite having a specific volume of from 10 to 300 cc/g and from 40 to 80% by weight of a binder such as a synthetic resin.
-
公开(公告)号：US5554204A
公开(公告)日：1996-09-10
申请号：US281107
申请日：1994-07-28
CPC分类号： C03C17/3435 , C03C17/225 , C03C2217/281 , C03C2218/15
摘要： Quartz material is subjected to a heat contact treatment with ammonia gas at 1200.degree. C. less under the presence of a carbon generating source to form a silicon oxynitride layer on the surface of the quartz material easily and rapidly. The obtained surface-treated quartz material has excellent heat resistance, and no exfoliation of the silicon oxynitride layer from the quartz material occurs even when it is subjected to a repetitive heat cycle. Further, if a second surface treatment step of coating a silicon nitride film on the silicon oxynitride layer using a CVD method or the like is performed after the surface treatment step of forming the silicon oxynitride layer on the surface of the quartz material, the heat resistance is more improved.
摘要翻译： 在碳发生源的存在下，石英材料在1200℃下用氨气进行热接触处理，在石英材料的表面上容易且快速地形成氮氧化硅层。 所获得的经表面处理的石英材料具有优异的耐热性，即使经受重复的热循环也不会发生氧化硅氮化物层与石英材料的脱落。 此外，如果在石英材料表面上形成氧氮化硅层的表面处理步骤之后，使用CVD法等在氮氧化硅层上涂覆氮化硅膜的第二表面处理步骤进行，则耐热性 更加完善。
-
3.发明授权Method of manufacturing aluminum borate whiskers having a reformed surface based upon gamma alumina 失效具有基于γ氧化铝的重整表面的硼酸铝晶须的方法
公开(公告)号：US5479873A
公开(公告)日：1996-01-02
申请号：US388451
申请日：1995-02-14
申请人： Yoshitomo Shintani , Tetsuya Suganuma , Shuitsu Matsuo , Hajime Saito , Hidenori Yamaoka , Nobuhisa Kurono , Hiroaki Kotaka
发明人： Yoshitomo Shintani , Tetsuya Suganuma , Shuitsu Matsuo , Hajime Saito , Hidenori Yamaoka , Nobuhisa Kurono , Hiroaki Kotaka
CPC分类号： C30B25/005 , C30B29/10
摘要： Aluminium borate whiskers by which a composite material having a higher strength than ever is available by definitely suppressing a generation of spinel along the surface of the whiskers are prepared by heating aluminium borate whiskers bearing a r-alumina surface layer in an atmosphere of ammonia gas or ammonia gas and a hydrocarbon gas such that a layer of a nitro-oxide and oxide of aluminium is generated along the surface of the whiskers.
摘要翻译： 通过在氨气氛中加热含有γ-氧化铝表面层的硼酸铝晶须来制备具有比以往更高强度的复合材料通过明确地抑制沿晶须表面产生尖晶石的硼酸铝晶须， 氨气和烃气体，使得沿着晶须的表面产生硝酸氧化物和铝的氧化物层。
-
公开(公告)号：US4269391A
公开(公告)日：1981-05-26
申请号：US898762
申请日：1978-04-24
申请人： Tutomu Saito , Hiroshi Yamazoe , Hidenori Yamaoka
发明人： Tutomu Saito , Hiroshi Yamazoe , Hidenori Yamaoka
CPC分类号： F16K1/2266 , F16J15/30 , F16K3/184 , F16K5/0673
摘要： A valve sealing device is proposed consisting of two parts, one of which contacts the body of the valve and is made of an expanded graphite compact or an expanded graphite--inorganic binder composite compact, and the other of which contacts the valve member and is made of a carbonaceous material--metallic material composite, a carbonaceous material impregnated with an inorganic binder, or a metallic material; a valve using such a sealing device is also proposed.
摘要翻译： 提出了一种阀门密封装置，其由两部分组成，其中一部分与阀体接触并由膨胀石墨压块或膨胀石墨 - 无机粘合剂复合材料制成，另一部分接触阀构件并制成 碳质材料金属材料复合材料，浸渍有无机粘合剂的碳质材料或金属材料; 也提出了使用这种密封装置的阀。
-
公开(公告)号：US5817274A
公开(公告)日：1998-10-06
申请号：US923458
申请日：1997-09-04
申请人： Hiroaki Kotaka , Hidenori Yamaoka , Shuitsu Matsuo , Masahiro Ando , Mikiya Fujii , Hiroyuki Terada , Yasuo Misu
发明人： Hiroaki Kotaka , Hidenori Yamaoka , Shuitsu Matsuo , Masahiro Ando , Mikiya Fujii , Hiroyuki Terada , Yasuo Misu
IPC分类号： C04B35/581
CPC分类号： C04B35/581 , C01P2002/72
摘要： Disclosed is a method of manufacturing aluminum nitride, which comprises the steps of preparing a mixed gas consisting essentially of an ammonia gas and at least 0.5% by volume of a hydrocarbon gas, calcining .gamma.-Al.sub.2 O.sub.3 or a precursor thereof at 300.degree. to 1,100.degree. C. so as to prepare the .gamma.-Al.sub.2 O.sub.3 having a moisture content of 1 weight % or less; heating the calcined .gamma.-Al.sub.2 O.sub.3 in the mixed gas at a temperature of 1,200.degree. to 1,700.degree. C., thereby preparing porous aluminum nitride having a specific surface area of 10 m.sup.2 /g or more; and heat-treating the porous aluminum nitride in an atmosphere of an ammonia gas, or a mixed gas of an ammonia gas and an inert gas, at 1600.degree. to 2000.degree. C., so as to make contents of both carbon and oxygen contained in the aluminum nitride 1 weight % or less.
摘要翻译： 公开了一种制造氮化铝的方法，其包括以下步骤：制备基本上由氨气和至少0.5体积％的烃气体组成的混合气体，在300〜1100℃下煅烧γ-Al 2 O 3或其前体 以制备含水量为1重量％以下的γ-Al 2 O 3; 在1,200〜1700℃的温度下加热混合气体中的煅烧γ-Al 2 O 3，由此制备比表面积为10m 2 / g以上的多孔氮化铝; 在氨气氛或氨气与惰性气体的混合气体中，在1600℃〜2000℃下对多孔氮化铝进行热处理，使碳和氧的含量在 氮化铝1重量％以下。
-
公开(公告)号：US4767597A
公开(公告)日：1988-08-30
申请号：US729782
申请日：1985-05-02
申请人： Kazuaki Nishino , Takuo Ito , Satosi Kato , Hidenori Yamaoka
发明人： Kazuaki Nishino , Takuo Ito , Satosi Kato , Hidenori Yamaoka
CPC分类号： C22C30/00
摘要： A heat-resistant alloy having excellent properties at high temperatures and useful for producing exhaust valves, comprises, in weight %, not more than 0.10% C, not more than 2.0% Si, not more than 2.0% Mn, from 35 to 50% Ni, from 17 to 25% Cr, from 3.2 to 5% Mo, from 2.0 to 3.2% Ti, from 0.5 to 1.5% Al, with the balance consisting essentially of Fe, wherein the weight ratio of Ti/Al is not more than 5/1. The alloy may further comprise at least one of B, Ca, and Mg, and/or at least one of Nb and Ta.
摘要翻译： 在高温下具有优异性能并且可用于制造排气阀的耐热合金，其重量％包含不超过0.10％C，不超过2.0％Si，不大于2.0％Mn，35-50％ Ni，17〜25％的Cr，3.2〜5％的Mo，2.0〜3.2％的Ti，0.5〜1.5％的Al，余量基本上由Fe组成，Ti / Al的重量比不大于 5/1。 该合金还可以包含B，Ca和Mg中的至少一种，和/或Nb和Ta中的至少一种。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.013 秒)
