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From: | "sonic.lu Thanks and Best Regards Sonic Lu 陆尚 Process Engineer Autoliv Electronics China (ACE) Co.,Ltd Tel: +86-21-67109300-3162 *************************************************************** Consider the environment before printing this message. To read Autoliv's Information and Confidentiality Notice, follow this link: http://www.autoliv.com/disclaimer.html *************************************************************** ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________" < [log in to unmask]> |
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Date: | Fri, 23 Sep 2011 12:50:54 +0800 |
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J-STD-020 table5-2
Thanks and Best Regards
Sonic Lu 陆尚
Process Engineer
Autoliv Electronics China (ACE) Co.,Ltd
Tel: +86-21-67109300-3162
Jessy Lai <[log in to unmask]>
Sent by: TGAsia <[log in to unmask]>
2011-09-23 12:01
Please respond to
Asia Committe Task Group Forum <[log in to unmask]>; Please respond to
Jessy Lai <[log in to unmask]>
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Subject
[TGAsia] SMT回流炉温降斜率
各位同行:
现在有个大家可能平时也非常少用到和想到的一个问题,在SMT回流炉中如何定义
降温斜率,
1.降温斜率是多少度/SEC;
2.计算降温斜率应该计算哪一个温度区间;
3.有铅和无铅是否一样,如果不同又是那不一样
请大家讨论和给个答案
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Consider the environment before printing this message.
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***************************************************************
______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
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