%0 Journal Article
%T PMMA材料开裂失效研究<br>Research on Cracking Failure of PMMA Materials
%A 王天鹏
%A 范蓉
%A 王华方
%A 马佳焱
%J Advances in Material Chemistry
%P 63-70
%@ 2331-0146
%D 2023
%I Hans Publishing
%R 10.12677/AMC.2023.113008
%X 本文基于我司的汽车车灯制造情况，描述了PMMA材料在生产过程中常见的五种失效形式。并针对温度交变试验和酒精溶剂试验导致的PMMA材料失效，给出了失效机理分析。通过C原子占比的变化，分析了酒精浓度对PMMA材料的影响，并提出杂质的存在加速了材料的失效。最后，针对PMMA材料注塑的拼接式样条，分析了退火时间对去应力效果的影响，给出了退火曲线。<br />
Based on the manufacturing situation of our lamps, this paper describes five common failures in the production process. And for the failure of PMMA materials caused by temperature alternating test and alcohol solvent test, the failure mechanism is given. Through the change of the proportion of C atoms, the influence of alcohol concentration on PMMA materials is analyzed, and it is proposed that the presence of impurities accelerates the failure of the material. Finally, for the spliced splines in-jection molded by PMMA materials, the influence of annealing time on the stress relief effect is ana-lyzed, and the annealing curve is given.
%K 车灯，PMMA，残余应力，退火；Lamps
%K PMMA
%K Residual Stress
%K Annealing
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=68538