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发明授权
CN101074500B 一种聚四氟乙烯短纤维的制造方法 有权 转让 质押

一种聚四氟乙烯短纤维的制造方法
摘要：
一种聚四氟乙烯短纤维的制造方法。本发明选择的原料是100％聚四氟乙烯，使用的加工设备有螺旋式挤压机、压延机、拉伸机、加热拉伸机、分切机、加捻机、挤压拉伸机、卷曲机、切断机及开松机，先在螺旋式挤压机投入聚四氟乙烯进行挤压，后进入压延机压延，接着进入拉伸机拉伸，接着进入加热拉伸机加热拉伸，后再进入加热拉伸机加热拉伸，接着通过分切机分切，后由加捻机加捻成束，接着进入挤压拉伸机实施粗拉，再进入挤压拉伸机进行细拉，后进入加热拉伸机加热拉伸，接着由卷曲机卷曲，后进入切断机切断，最后由开松机开松，即制成聚四氟乙烯短纤维成品。由本发明所得的聚四氟乙烯短纤维通过针刺工艺，针刺在基布上制成聚四氟乙烯针刺毡滤料，将其制成布袋，可以使用在布袋除尘器上，使滤袋有较好的使用寿命。
摘要（英）：

This invention relates to a production process for Short fiber PTFE. The raw materials in this invention is 100% PTFE, the processing equipment includes spiral extrusion machine, calendar, stretching machine, heating tensile machine, slitter, twisting machines, extrusion tensile machine, curling machine, a cutting machine and opener. The process for producing PTFE short fiber is as follows: crash the PTFE in the spiral extrusion machine, calendar, stretch in stretching machine, stretch in the heating tensile machine, stretch in the heating tensile machine again, sub-cut in the slitter, twisting into beam in the twisting machines, rough and fine rafah in the extrusion tensile machine, stretch in the heating tensile machine, curl in curling machine, cut in the cutting machine, open by theopener. The PTFE short fiber produced by this invention can be used as PTFE thorn felt filter and bags in the bags filter, which longer the duration of use.

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