A new processing method , gelation - flow - casting , specialized for the molding of polyvinyl fluorite ( pvf ) films , is introduced in this paper 摘要介绍了一种适合聚氟乙烯薄膜生产制造的新工艺凝胶挤出流延法。
Practice shows that rigid pvc equipment can be used under 60 by cooling water ; rigid pvc can be used instead of certain steel devices during the production of fluoride salt 实际使用情况表明:在氟化盐生产中,采用淋水冷却的办法可以使硬聚氟乙烯设备在高于60的条件下使用;可代替某些钢制设备。
Opposite nip type line with rubber butterfly valve , metal hard seal eccentric butterfly valve , intensifying polytetrafluoro - ethylene soft ? sealing butterfly valve , low - load light type high temperature butterfly valve , fluorine - butterfly butterfly valve 对夹式衬胶蝶阀,金属硬密封偏心蝶阀,强化聚氟乙烯软密封蝶阀,低负载轻型高温蝶阀,衬氟蝶阀。
By the use of gelation - flow - casting method , the troubles caused by the structural characteristics of pvf resins were resolved , and the produced films met a bright foreground of application with super properties such as uv resistance , mechanical strength and light transmittance 该工艺克服了聚氟乙烯自身结构特性给成型带来的困难,得到的薄膜产品具有耐候性强、强度高、透光率大等优点,并有很好的应用前景。