发明名称 PROCESS FOR THE GASEOUS SEALING OF PRE-PERFORATED WEB MATERIAL
摘要 A process for the mechanical treatment of porous sheet materials entails introducing a particulate material into the pores of the sheet material to block the pores, carrying out the mechanical treatment, and then removing the particles from the pores. The process enables porous sheet materials to be subjected to mechanical operations, for example shaping under gaseous pressure or surface polishing, which could otherwise only be applied to non-porous materials.
申请公布号 GB9104298(D0) 申请公布日期 1991.04.17
申请号 GB19910004298 申请日期 1991.03.01
申请人 HUMPHREYS, B 发明人
分类号 B23Q3/08 主分类号 B23Q3/08
代理机构 代理人
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