专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

标题翻译：纳米颗粒，并为其使用

公开(公告)号：WO9606700A2

公开(公告)日：1996-03-07

申请号：PCT/US9510815

申请日：1995-08-25

申请人： QQC INC , LIU SHENGZHONG , MISTRY PRAVIN , TURCHAN MANUEL C

发明人： LIU SHENGZHONG , MISTRY PRAVIN , TURCHAN MANUEL C

IPC分类号： F16H41/28 , B01J2/00 , B01J19/12 , B01J37/34 , B05D7/24 , B22F9/14 , B22F9/30 , B23K23/00 , B23K26/00 , B23K26/14 , B23K35/02 , B23K35/24 , B23K35/34 , B23K35/40 , C01B13/18 , C01B21/064 , C01B21/076 , C01B31/30 , C01B33/18 , C01F5/02 , C01F5/06 , C01F7/30 , C01F7/44 , C01F11/02 , C01F17/00 , C01G23/04 , C01G49/00 , C04B2/10 , B23K9/00

CPC分类号： C04B2/10 , B01J2/00 , B01J37/349 , B22F9/30 , B23K1/0056 , B23K23/00 , B23K26/21 , B23K35/0222 , B23K35/0238 , B23K35/0244 , B23K35/025 , B23K35/0255 , B23K35/28 , B23K35/284 , B23K35/286 , B23K35/288 , B23K35/34 , B23K2201/001 , B23K2203/04 , B82Y30/00 , C01B13/18 , C01F5/06 , C01F7/30 , C01F7/44 , C01P2004/64 , F16H41/28 , Y10S977/777 , Y10T29/49321

摘要： Nanoscale particles and powders are made from a starting material, including larger-size starting particles and solid targets. Various techniques are disclosed all of which generally involve heating and decomposing the starting material with an energy source selected from the group consisting of laser, electric arc, flame and plasma. The various techniques disclosed herein all exhibit a high throughput and a nearly instantaneous rate of production of nanoscale powders for a variety of applications. In certain of the embodiments, cooling is required to prevent agglomeration of the nanoscale particles into larger (non-nanoscale) particles. The nanoscale particles are useful for painting, coating, joining, bonding, brazing, soldering, welding, etc. For example, thermal stresses normally associated with joining (e.g., brazing) may be alleviated by a low-temperature joining technique of the present invention. A low-temperature joining material is applied (as a paste, or as a powder spray, or as a tape, or as a paint, or as a putty) at the junction of two components desired to be joined together. Energy from a source such as a laser beam (for example an Nd:YAG or a CO2 laser) or by a flame, arc, plasma, or the like, is either "walked" along the joining material to react the entire amount joining material, or the joining material is self-sustaining and simply requires igniting a selected portion of the joining material by the energy source. In an exemplary application of the process, vanes are brazed to the bowl and/or to the shroud of an automatic transmission bowl (impeller or turbine) assembly, preferably using the low-temperature joining material. Systems for delivering the joining material and the energy are described. The fabrication of hollow vanes is described. The fabrication of shroudless bowl components, and stator components subsuming the function of the shroud are described.

摘要翻译：纳米颗粒和粉末由起始材料制成，包括较大尺寸的起始颗粒和固体靶。公开了各种技术，其中所有技术通常涉及用选自激光，电弧，火焰和等离子体的能量源来加热和分解起始材料。本文公开的各种技术都表现出高通量和几乎瞬时的用于各种应用的纳米级粉末的生产速率。在某些实施方案中，需要冷却以防止纳米级颗粒聚集成更大的（非纳米级）颗粒。纳米级颗粒可用于涂覆，涂覆，接合，粘合，钎焊，焊接，焊接等。例如，通过本发明的低温接合技术可以减轻通常与接合（例如钎焊）相关的热应力。在期望连接在一起的两种组分的接合处施加低温接合材料（作为糊剂，或作为粉末喷涂，或作为胶带，或作为油漆，或作为油灰）。源自诸如激光束（例如Nd：YAG或CO 2激光）或火焰，电弧，等离子体等的源的能量沿着接合材料“走动”以使整个量的接合材料或者接合材料是自维持的，并且仅需要通过能量源点燃连接材料的选定部分。在该方法的示例性应用中，叶片被钎焊到自动传动碗（叶轮或涡轮机）组件的碗和/或护罩上，优选地使用低温接合材料。描述了用于传送接合材料和能量的系统。描述了中空叶片的制造。描述了制造无罩碗部件和包含护罩功能的定子部件。

IPRDB

热门服务

关于我们

友情链接

联系方式