孔直径设计的太小了么，增大一些孔径就行了啊，焊接没影响的。

Evan




River Huang-3692CE <[log in to unmask]> 
发件人:  TGAsia <[log in to unmask]>
2011-03-23 11:35
请答复 给
Asia Committe Task Group Forum <[log in to unmask]>; 请答复 给
River Huang-3692CE <[log in to unmask]>


收件人
[log in to unmask]
抄送

主题
Re: [TGAsia] 求助手插件按压力大小标准






谢谢赐教！
还有就是有些PCB较薄，压力大了会把板子压得严重弯曲，可能带来某些潜在的risk
，所以希望能有这方面的标准！
 

From: Jake Tu [mailto:[log in to unmask]] 
Sent: 2011年3月23日 10:42
To: Asia Committe Task Group Forum; River Huang-3692CE
Subject: RE: [TGAsia] 求助手插件按压力大小标准
 
 
力的大小要基于PCBA的strain gauge 测试要求, 如果零件平整的话, 你可以考虑用
一个带小汽缸治具替代手工按压. 
 
Best Regards!
Jake Tu
 

From: TGAsia [mailto:[log in to unmask]] On Behalf Of River Huang-3692CE
Sent: 2011年3月23日 10:32
To: [log in to unmask]
Subject: [TGAsia] 求助手插件按压力大小标准
 
各位好：
 
有些产品的手插件，操作员每次都需要花很大的力才能把件插入孔内（排除材料
issue），时间长了难免手会产生疼痛感，有谁知道插孔件按压力大小的IPC标准，谢
谢能分享一下！
 
Best regards
 
 

______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________
Legal Disclaimer: The information contained in this message may be 
privileged and confidential. It is intended to be read only by the 
individual or entity to whom it is addressed or by their designee. If the 
reader of this message is not the intended recipient, you are on notice 
that any distribution of this message, in any form, is strictly 
prohibited. If you have received this message in error, please immediately 
notify the sender and delete or destroy any copy of this message 

______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________


______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________