会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明公开
    • SLURRY PREFORM SYSTEM
    • 器具,用于产生光纤预制棒
    • EP1002157A1
    • 2000-05-24
    • EP99904107.2
    • 1999-01-15
    • THE BUDD COMPANY
    • BODARY, Joseph, A.GREVE, Bruce, N.WELLS, Terry, G.
    • D21J1/04D21J3/00D21F13/00
    • B29C70/30D21J7/00
    • An efficient, low cost method and apparatus for controlling fiber deposition in a fiber reinforced preform (12) is provided. In the method, a main screen (26) is placed in a tank (36) filled with liquid (44). The main screen (26) has a major surface (30), upright side walls (28) and a plurality of openings (32) formed therein. Reinforcing fibers (42) are added to the liquid (44) to create a slurry (45). The main screen (26) is raised through the slurry (45) to a level beneath the top of the slurry (45), thereby causing the reinforcing fibers (42) to be deposited on the main screen (26). A retainer screen (34) is inserted into the slurry (45) so that the reinforcing fibers (42) are sandwiched between the main screen (26) and the retainer screen (34). Both the main screen (26) and retainer screen (34) are raised out of the tank (36) effectively forming a preform (12) with minimal deformation. An alternative embodiment includes a bubbler zone control device (86) for mixing the slurry (45). The tank (36) is divided into separate areas or zones (88) whereby the supply of fluid (44) to each bubbler zone (88) is controlled. The bubbler zone controller (86) may be used to initiate or diminish a vortex in the slurry (45) as the screen (26) is being raised out of the tank (36). Another embodiment includes a fiber dispenser system (103) for adding fibers (42) to the slurry (45).