Article(id=1217472512586338477, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1217472509256056911, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20230019, 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=1768197666546, onlineDateStr=2026-01-12, pubDate=1703001600000, pubDateStr=2023-12-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1768197666546, onlineIssueDateStr=2026-01-12, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1768197666546, creator=13701087609, updateTime=1768197666546, updator=13701087609, issue=Issue{id=1217472509256056911, tenantId=1146029695717560320, journalId=1189873562199433220, year='2023', volume='', issue='12', pageStart='1', pageEnd='66', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1768197665752, creator=13701087609, updateTime=1768198265668, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1217475025536467895, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1217472509256056911, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1217475025536467896, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1217472509256056911, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=20, endPage=25, ext={EN=ArticleExt(id=1217472513894961330, articleId=1217472512586338477, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=Simulation Analysis and Countermeasures of PCBA Warpage Caused by Wave Soldering, columnId=null, journalTitle=Automobile Technology & Material, columnName=null, runingTitle=null, highlight=null, articleAbstract=
This paper analyzed the problem of difficult installation of Printed Circuit Board Assembly (PCBA) caused by warping during trial production and identified wave soldering as the key factor through specific test comparison. ABAQUS was applied to perform thermal-structural coupling FEA simulation analysis of wave soldering process, it was concluded that poor temperature resistance of connector base material, large difference in thermal expansion coefficient between connector base material and PCBA material, uneven heating caused by process were the causes of PCBA warpage. Therefore, professional suggestions were provided and a series of verification schemes were developed for verification and improvement, which eventually eliminated PCBA warpage caused by wave soldering.
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针对试生产过程中的装配印制板(PCBA)翘曲而导致的安装困难问题进行初步分析,且通过特定的试验对比,找出了关键因素波峰焊。使用ABAQUS软件对波峰焊的过程进行热结构耦合有限元仿真分析,得出造成翘曲的原因有连接器基座材料耐温性差、基座材料与PCBA材料热膨胀系数相差大、工艺过程导致的受热不均等,同时出具了专业建议并制定了一系列验证方案,通过对各类方案的进一步验证和改进,最终成功地解决波峰焊导致的PCBA翘曲问题。
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胡涛(1983—),男,工程师,硕士学位,研究方向为结构强度。
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胡涛(1983—),男,工程师,硕士学位,研究方向为结构强度。
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| 名称项目 | T板 | L板 | R板 |
| 制板厂家 | S厂家 | S厂家 | A厂家 |
| 拼板工艺 | 长边侧 | 长边侧 | 短侧边 |
| 工艺边 | 邮票孔 | 邮票孔 | V-CUT |
| 连接器焊接工艺 | 手焊 | 手焊 | 波峰焊 |
| PCBA变形量 | 微 | 微 | 大 |
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同类型板的制板及生产工艺对比
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| 名称项目 | T板 | L板 | R板 |
| 制板厂家 | S厂家 | S厂家 | A厂家 |
| 拼板工艺 | 长边侧 | 长边侧 | 短侧边 |
| 工艺边 | 邮票孔 | 邮票孔 | V-CUT |
| 连接器焊接工艺 | 手焊 | 手焊 | 波峰焊 |
| PCBA变形量 | 微 | 微 | 大 |
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| 方案 | 基座版本 | 波峰焊工艺 | 焊头温度/℃ | 冷却方式 | 翘曲对比 |
| 1 | 旧基座 | 旧工艺 | 270 | 风扇降温 | 无改善 |
| 2 | 旧基座 | 新工艺 | 270 | 风扇降温 | 有小改善 |
| 3 | 旧基座 | 新工艺 | 260 | 自然冷却 | 有小改善 |
| 4 | 新基座 | 新工艺 | 270 | 自然冷却 | 明显改善 |
| 5 | 新基座 | 新工艺 | 260 | 自然冷却 | 达标 |
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方案表及改进效果
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| 方案 | 基座版本 | 波峰焊工艺 | 焊头温度/℃ | 冷却方式 | 翘曲对比 |
| 1 | 旧基座 | 旧工艺 | 270 | 风扇降温 | 无改善 |
| 2 | 旧基座 | 新工艺 | 270 | 风扇降温 | 有小改善 |
| 3 | 旧基座 | 新工艺 | 260 | 自然冷却 | 有小改善 |
| 4 | 新基座 | 新工艺 | 270 | 自然冷却 | 明显改善 |
| 5 | 新基座 | 新工艺 | 260 | 自然冷却 | 达标 |
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