Article(id=1200816907428417801, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1200830037944561964, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20240056, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1764226660829, onlineDateStr=2025-11-27, pubDate=1726761600000, pubDateStr=2024-09-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764226660829, onlineIssueDateStr=2025-11-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764226660829, creator=13701087609, updateTime=1764226660829, updator=13701087609, issue=Issue{id=1200830037944561964, tenantId=1146029695717560320, journalId=1189873562199433220, year='2024', volume='', issue='9', pageStart='1', pageEnd='72', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1764229791389, creator=13701087609, updateTime=1764229791389, updator=13701087609, preIssue=null, nextIssue=null, ext=null, issueFiles=null}, startPage=23, endPage=27, ext={EN=ArticleExt(id=1200816907621355789, articleId=1200816907428417801, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=Analysis and Solution of PVC Cracking of Vehicle Doors and Front and Rear Hoods, columnId=null, journalTitle=Automobile Technology & Material, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In order to solve the issue of cracking in the polyvinyl chloride (PVC) fine sealing strips in the folded edge areas of passenger car doors, hoods, and trunk lids, and in conjunction with production manufacturing cases of PVC fine sealing strip cracking in the corresponding areas, the paper analyzes the cause of PVC cracking and proposes measures with metallographic analysis method. For the cracking caused by insufficient glue volume of folding edge glue, and sufficient inner and outer board bonding, measures are taken to increase the amount of glue, while ensuring the uniformity of the glue coating. For the cracking caused by external forces, measures are taken to optimize the PVC finishing process to avoid stress concentration. For the cracking caused by over-drying, measures are taken to control the drying time of the PVC. Through the above measures, the cracking are eliminated and solved.
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为解决乘用车车门、前、后盖折边区域聚氯乙烯(PVC)细密封胶条开裂问题,结合生产制造过程中相应区域的PVC细密封胶条开裂案例,采用金相分析方法分析了PVC胶开裂的原因和解决措施。针对折边胶胶量不足,内、外板粘结不充分导致的开裂,采用增加涂胶量并保证涂胶均匀性的措施;针对受外部力作用导致的开裂,采用优化PVC修饰工艺避免应力集中的措施;针对烘干过度导致的开裂,采用控制PVC烘干时间的措施。通过以上措施,问题均得到消除和解决。
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常晓亮(1980—),男,工程师,硕士学位,研究方向为整车防腐及密封开发。
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常晓亮(1980—),男,工程师,硕士学位,研究方向为整车防腐及密封开发。
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常晓亮(1980—),男,工程师,硕士学位,研究方向为整车防腐及密封开发。
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refType=null, unstructuredReference=彭文. 汽车涂装过程中PVC涂料施工工艺简介[J].
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| 参数名称 | 标准值 | 实测值 | 结论 |
| 延伸率/% | >150 | 215 | 合格 |
| 抗拉强度/MPa | >1.5 | 2.96 | 合格 |
), ArticleFig(id=1200830054382031211, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1200816907428417801, language=CN, label=表1, caption=
PVC材料检验结果
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| 参数名称 | 标准值 | 实测值 | 结论 |
| 延伸率/% | >150 | 215 | 合格 |
| 抗拉强度/MPa | >1.5 | 2.96 | 合格 |
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