摘要
采用常温下的胶合-辊压制备法,制备出由覆层增强体镁合金(AZ31B)以及基体聚乙烯(PE)组成的"三明治式"复合材料层合板。探究了制备过程中施压静置压力、施压静置时间、辊压过程压下量对辊压过程中轧制力变化规律的影响;通过"咬入敲击法"和二次轧制,获得了层合板的刚度以及成品层合板二次轧制加工中的弹性回复率与覆层增强板和基板分别对压下量的贡献率。结果表明,层合板在辊压过程中,"咬入"过程轧制力会存在瞬间升高的冲击效果,"咬出"过程轧制力会缓慢卸载;施压阶段中的静置时间与静置压力对辊压过程中的轧制力变化有一定的影响;在二次轧制过程中,轧制力会随着压下量的增加而变大,但轧制力提升速率会随着压下量的增加逐步变小且设定压下量对层合板的弹性回复率、各组分压下贡献率与轧制效果均存在一定的影响。
A sandwich-structure composite laminate was prepared by gluing-stressing-rolling method under normal temperature using magnesium alloy(AZ31 B)as coating enhancement and polyethylene(PE)as substrate.The effects of the static pressure,the standing time under pressure in preparatory stage and press quantity on the change law of rolling force in the process of rolling were investigated.By using biting and knocking method and secondary rolling,the stiffness of the laminate,the elastic recovery percentage of a composite laminate product during secondary rolling,and the contribution rate of press quantity made by coating enhancement plate and substrate were obtained.The results reveal that during the rolling process of the composite laminate,the rolling force rises instantly at a certain point during the bite-in process and slowly decreases when it bites out.The static pressure and the standing time under pressure could affect the rolling force in the process of rolling.During the secondary rolling,the rolling force increases along with press quality,but the increasing rate of the rolling force diminishes when press quantity increases.Preset press quantity also influences the rolling effects by the elastic recovery percentage of a composite laminate,and the contribution rate of each component.
作者
张超智
王立萍
崔维启
杨久蕴
解玉芬
白龙
于江
ZHANG Chao-zhi;WANG Li-ping;CUI Wei-qi;YANG Jiu-yun;XIE Yu-fen;BAI Long;YU Jiang(School of Mechanical Engineering&Automation,University of Science and Technology Liaoning,Anshan 114004,China;Anshan Elevator Manufacturer,Anshan 114013,China)
出处
《塑料工业》
CAS
CSCD
北大核心
2019年第10期92-96,共5页
China Plastics Industry
关键词
聚乙烯
镁合金
复合材料
胶合-辊压制备法
Polyethylene
Magnesium Alloy
Composite
Gluing And Rolling Method
