公开(公告)号：US5271118A

公开(公告)日：1993-12-21

申请号：US843123

申请日：1992-02-28

申请人： Juergen Piotrowitz

发明人： Juergen Piotrowitz

IPC分类号： B08B9/057 ,  F16L55/28 ,  B08B9/02 ,  F16J15/16

CPC分类号： F16L55/28

摘要： A plastic packing ring or disk for scrapers and other such bodies sliding in pipelines consists essentially of polyurethane and is supported annularly on the inside of the pipe. To make especially this kind of support elements on scrapers more resistant to friction stresses and improve their sliding qualities, the plastic packing rings or disks on the scrapers have embedded particles of solidified polyethylene at least in an outer part intended for contact with the pipeline.

摘要翻译： 在管道中滑动的用于刮刀和其它这种物体的塑料填料环或盘基本上由聚氨酯组成，并且环形地支撑在管的内部。 为了特别地使这种刮擦器上的支撑元件更耐摩擦应力并且改善其滑动质量，刮板上的塑料填料环或盘片至少在与管道接触的外部部分中具有固化聚乙烯的嵌入颗粒。