塑料科技2023，Vol.51Issue(12)：76-80,5.DOI:10.15925/j.cnki.issn1005-3360.2023.12.016
激光清洁去除塑料模具表面残余物的工艺研究
Research on Process of Laser Cleaning to Remove Surface Residues of Plastic Molds
摘要
Abstract
The plastic adhesion on the surface of the plastic mold after multiple uses seriously affects the processing accuracy and must be cleaned;however,the existing cleaning methods have certain defects.Laser cleaning technology was used to remove residues on the surface of plastic molds,and the effects of different laser powers and pulse frequencies were investigated.Field emission scanning electron microscopy,X-ray energy spectroscopy,microhardness,and electrochemical polarization curves were used to jointly characterize the cleaning effects of residues on the surface of plastic molds.The results show that laser cleaning can significantly reduce the oxygen content on the mold surface material and significantly remove residues on the surface of plastic molds.Under the same laser power,with the increase of pulse frequency,the oxygen content on the surface of plastic molds gradually increases,while the hardness of the surface of plastic molds first decreases and then increases.The phenomenon may be due to the secondary oxidation and local quenching of the surface of the mold material caused by the high temperature of the laser.Considering comprehensively,under the laser cleaning condition of 200 W laser power and 100 kHz pulse frequency,the surface oxygen content,hardness,corrosion potential,and corrosion current density of the plastic mold are the closest to the control sample,achieving the best comprehensive cleaning effect.关键词
激光清洁/塑料模具/残余物Key words
Laser cleaning/Plastic molds/Residues分类
信息技术与安全科学引用本文复制引用
王延明,程耳号,胡波,张平杰,杨玥,陈夔宁,陈萍,马素德,蔡芳共..激光清洁去除塑料模具表面残余物的工艺研究[J].塑料科技,2023,51(12):76-80,5.基金项目
四川省科技计划(2019JDTD0024) （2019JDTD0024）
东方电气集团东方电机有限公司专项研究项目(7600007117) （7600007117）
