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In this paper,technology of blended various length staple fibers processing together was studied,60Nm ramie/vinylon/polyester/cotton fibers blended yarn was formed on the roving frame by mixing the cotton/polyester short fibers slivers and ramie/vinylon long fibers slivers together.

通過對長短纖維紡紗的工藝路線及關鍵工序的生產技術進行研究和創新,在苧麻粗紗機上將滌/棉短纖維條與麻/維長纖維條進行復合,紡出60Nm麻/維/滌/棉長短纖維復合紗。

The causes of scratch on the bottom surface of sheet,long or short length of shearing were analyzed,and the corresponding improvement measures were put forward.

介紹了寶鋼熱軋薄板生產線D1型飛剪的主要特點、基本結構和工作原理;重點分析了該飛剪在使用中存在鋼板下表面劃傷、剪切長短尺等問題的產生原因,并提出了相應的改進措施。