PPR管材挤出VIP免费

课题名称： PP-R 管材挤出工艺 系 别： 专 业： 高分子材料应用技术 班 级： 学生姓名： 指导教师： 目 录 一、前言„„„„„„„„„„„„„„„„„„„„„„„„„„„4 二、聚丙烯„„„„„„„„„„„„„„„„„„„„„„„„„„4 2.1PP的发展形势及其应用„„„„„„„„„„„„„„„„„„4 2.1.1PP及其管材简介„„„„„„„„„„„„„„„„„„„„5 2.1.2PP的加工特性及现状„„„„„„„„„„„„„„„„„„5 2.1.3PP的性质及应用„„„„„„„„„„„„„„„„„„„„6 四．挤出成型工艺流程„„„„„„„„„„„„„„„„„„„„„6 4.1挤出成型原理„„„„„„„„„„„„„„„„„„„„„„„„6 4.2挤出成型工艺的生产过程„„„„„„„„„„„„„„„„„„7 4.3挤出成型工艺参数„„„„„„„„„„„„„„„„„„„„„„7 五、结束语„„„„„„„„„„„„„„„„„„„„„„„„„„„8 六、参考文献„„„„„„„„„„„„„„„„„„„„„„„„„„9 摘要 PP-R管又叫三型聚丙烯管。是欧洲90年代初开发应用的新型塑料管道产品。采用无规共聚聚丙烯经挤出成为管材，本文主要设计了PP-R管材挤出生产工艺。根据当今PP-R管材行业的发展前景和应用，结合实际，详细说明了PP-R管材的配方设计、挤出生产工艺流程等方面。 关键词：PP-R管材挤出成型工艺、配方设计、挤出生产工艺流程、后处理 Abstract Pp-r pipe and three type polypropylene pipe. Is Europe in the early 90 s development and application of new plastic pipe products. With random copolymerization polypropylene extrusion as pipe material, this paper designed the pp-r pipe extrusion production process. According to today's prospects for development and application of pp-r pipe industry, combined with the actual, detailing the pp-r pipe material formulation design, production process flow and parameters determination of devolatilization and waste. To select the extrusion machine, made clear calculation. Workshop production organization and management, and the economic estimate of this project planning. Finally determined t...