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href="http://www.majubuanatravel.com/"><h4>防滲膜</h4></a>,<a href="http://www.majubuanatravel.com/"><h4>土工膜廠家</h4></a>,<a href="http://www.majubuanatravel.com/"><h4>土工膜價格</h4></a> 時間：2020-08-25 網址：<a href="http://www.majubuanatravel.com/">http://www.majubuanatravel.com/</a> 分享： </span> </div> <div class="thecontent"><p> 土工布nwt紡粘生產線一般配備切片和干燥系統。為了完成pet的紡絲過程，包裝干燥裝置被廣泛使用。該干燥裝置由兩部分組成，第一部分是結晶器，用于結晶無定形聚合物，該裝置配有攪拌器以防止碎片結塊；第二部分是烘干機，使切片在特定時間內達到烘干標準。該裝置的生產能力一般為3t/d，干燥時間為7~8H。在生產pp土工布產品時，不需要干燥過程，PP切片通過真空罐后可以直接送到預紡絲料斗。 </p> <p align="center"> </p> <p align="center"> <img onload="resize(this,700)" alt="土工布nwt紡粘生產線一般配備切片和干燥系統" src="/upload/image/20200825/20200825131711_97247.jpg" /> </p> <p> </p> <p> 切片在輸送和干燥前，必須對切片的質量和性能指標進行分析和檢查。對于聚酯切片，軟化點要求大于258度。特性粘度為0.645~0.650pa，對雜質含量和切片尺寸有一定要求。對于聚丙烯切片，熔體指數應在27~33之間，等規聚丙烯的含量應大于3.5%。還需要相對分子質量分布和灰分含量。 </p> <p> 土工布碎片通過氣流(pet干燥)輸送到螺桿擠出機，然后進入紡絲過程。NWt工藝屬于熔融紡絲，其紡絲工藝是通過螺桿擠出將高速物體切片擠出熔融，然后通過噴絲板將熔融物擠出拉伸，形成連續長絲。nwt工藝采用單螺桿臥式擠出機。以沈陽進口設備為例，螺桿直徑為120米，長徑比為28:1。預濾器由液壓自動切換。熔體歧管和紡絲箱由外循環導熱管束加熱。 </p></div> <script> window._bd_share_config = { common : { bdText : '<p> 土工布nwt紡粘生產線一般配備切片和干燥系統。為了完成pet的紡絲過程，包裝干燥裝置被廣泛使用。該干燥裝置由兩部分組成，第一部分是結晶器，用于結晶無定形聚合物，該裝置配有攪拌器以防止碎片結塊；第二部分是烘干機，使切片在特定時間內達到烘干標準。該裝置的生產能力一般為3t/d，干燥時間為7~8H。在生產pp土工布產品時，不需要干燥過程，PP切片通過真空罐后可以直接送到預紡絲料斗。 </p> <p align="center"> </p> <p align="center"> <img onload="resize(this,700)" alt="土工布nwt紡粘生產線一般配備切片和干燥系統" src="/upload/image/20200825/20200825131711_97247.jpg" /> </p> <p> </p> <p> 切片在輸送和干燥前，必須對切片的質量和性能指標進行分析和檢查。對于聚酯切片，軟化點要求大于258度。特性粘度為0.645~0.650pa，對雜質含量和切片尺寸有一定要求。對于聚丙烯切片，熔體指數應在27~33之間，等規聚丙烯的含量應大于3.5%。還需要相對分子質量分布和灰分含量。 </p> <p> 土工布碎片通過氣流(pet干燥)輸送到螺桿擠出機，然后進入紡絲過程。NWt工藝屬于熔融紡絲，其紡絲工藝是通過螺桿擠出將高速物體切片擠出熔融，然后通過噴絲板將熔融物擠出拉伸，形成連續長絲。nwt工藝采用單螺桿臥式擠出機。以沈陽進口設備為例，螺桿直徑為120米，長徑比為28:1。預濾器由液壓自動切換。熔體歧管和紡絲箱由外循環導熱管束加熱。 </p>', bdDesc : '<p>...', bdUrl : 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