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]>
To
<[log in to unmask]>
cc
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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