专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2005094276A2 UNDERWATER CERAMIC ELECTRODES 审中-公开
标题翻译：水下陶瓷电极
公开(公告)号：WO2005094276A2
公开(公告)日：2005-10-13
申请号：PCT/US2005/010089
申请日：2005-03-25
申请人： HI-Z TECHNOLOGY, INC. , INFOSTO NEWTECH OY , METCALFE, Arthur , ELSNER, Norbert, B. , MUSTONEN, Sakari
发明人： METCALFE, Arthur , ELSNER, Norbert, B. , MUSTONEN, Sakari
IPC分类号： B23K9/00 , B23K9/013
CPC分类号： B23K9/0061
摘要： An underwater torch with a metal infiltrated ceramic electrode for cutting and machining. The electrode has a composition with an empirical formula MB 2-Z +N, wherein 0 2.-Z defines a ceramic structure formed with ceramic and defining a volume with void spaces comprising at least 10 percent of the volume of the matrix structure and the N occupies a portion of the void spaces. A preferred electrode material is ceramic matrix of ZrB 2 slightly enriched in Zr that is infiltrated with copper. Preferred methods of making the composition involves at least two step: First, ZrB 2 (which preferably is slightly enriched in Zr) is formed into a ceramic matrix having a density of up to 96 percent. Second, the ceramic matrix is heated in a pool of copper at a vacuum and at an infiltration temperature of about 1700 degrees C. to permit copper from the pool to infiltrate the ceramic matrix. Preferred processes for making the product are similar to the processes described in the ‘574 patent. Applicants’ tests have shown that conductors made for underwater electric discharge cutting provide good results. However, some significant erosion resulted from the flaking off of ceramic powders at the outer surface of the copper infiltrated electrodes when the surface copper melted during the cutting process. To minimize this problem, Applicants have modified the ceramics in the compositions described in the ‘547 patent. In a preferred embodiment, the metal content in the voids in the ceramic matrix is reduced from at least 70% to between 10% and 30%. In another preferred embodiment ceramic fibers are used in place of ceramic powders. In a third preferred embodiment ceramic wires such as ZrB 2 wires are utilized instead of the ZrB 2 powder. ZrB 2 wires are preferably prepared using a chemical process to convert the Zr wires to ZrB 2 wires. Bundles of the ZrB 2 wires may then be infiltrated with the copper.
摘要翻译：具有金属渗透陶瓷电极的水下手电筒用于切割和加工。电极具有经验式MB2-Z + N的组成，其中0

IPRDB

热门服务

关于我们

友情链接

联系方式