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January 2013

TGAsia@IPC.ORG

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Subject:
From:
Frank Xiong <[log in to unmask]>
Reply To:
Frank Xiong <[log in to unmask]>
Date:
Mon, 14 Jan 2013 17:28:00 +0800
Content-Type:
text/plain
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text/plain (1 lines)
Hi WenJin:

三氯乙烯清洁效果不错,但是不符合最新REACH的要求呀(欧洲客户不给用呀),有没
有什么好的替代品能同时达到 清洁效果和环保要求的呀!!谢谢。

Best regards
Frank          Jan.14,2013

-----Original Message-----
From: TGAsia [mailto:[log in to unmask]] On Behalf Of wjzhong[钟文晋]
Sent: Friday, January 11, 2013 3:15 PM
To: [log in to unmask]
Subject: [TGAsia] 答复: [TGAsia] 洗板水推荐

不能污染到连接器的PIN,尤其是清洗的过程中洗板水与助焊剂混合物不能污染到开关
或连接器之类的零件,会严重影响接触。

我这边用的洗板水相关情况如下:
1、化学属性及组份:常用危险化学品的分类及标志(GB13690-92)将该物质划为第6.1
类毒害品。本品可燃。有机卤代烯烃(三氯乙烯)85~95%,有机安全溶剂5-15%,防 蚀
剂0.5-1.0%,抗氧化剂0.5-1.0,缓 冲 剂1.0-2.0。		
2、理化性质:无色或微黄色透明液体,比重(20℃)g/cm31.35±0.05 g/cm3,沸点
(℃)78℃~86℃,熔点(℃)-87.1,临界压力(MPa)5.02,饱和蒸气压(KPa)13.33
(32℃),挥发速度(Sther=1),1.5-7.2。					

Best Regards!
Zhong Wenjin
 
 
-----邮件原件-----
发件人: TGAsia [mailto:[log in to unmask]] 代表 YIN Zhaohong
发送时间: 2013年1月11日 13:42
收件人: [log in to unmask]
主题: [TGAsia] 洗板水推荐

请问群里谁有合适的洗板水推荐以及合适的工具使用、方法

适用范围:PCB数量不多(MAX:100套),插件为手工焊接,单板插件较多(300个管脚
左右);

谢谢


-----Original Message-----
From: TGAsia [mailto:[log in to unmask]] On Behalf Of James LIU Chunguang
Sent: 2013年1月9日 13:16
To: [log in to unmask]
Subject: [TGAsia] 答复: [TGAsia] IPC-A-620 线束拉力测试值

没有建立(Not Established)意思。





Best Regards,

James Liu 刘春光
Director, IPC China Training Centers/Technology 培训中心主任/技术总监
IPC China

北京市经济技术开发区荣华中路15号朝林大厦B05
Room B05, Zhaolin Building, #15 Ronghua Zhong Road, BDA 100176 Beijing China
Tel:   +86 21 22210101, 4006218610
Fax:  +86 10 67885326
MP:   +86 136 0133 3491
SKYPE: james.liu7
[log in to unmask]<mailto:[log in to unmask]>
www.ipc.org.cn<http://www.ipc.org.cn/>
[IPC_logo_CN]

IPC中文培训官网:http://www.ipc.org.cn/Training-Certification/index.html

IPC围脖,实时报道IPC中国动态,欢迎加好友!
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发件人: TGAsia [mailto:[log in to unmask]] 代表 sutoxu
发送时间: 2013年1月9日 9:16
收件人: TGAsia
主题: [TGAsia] IPC-A-620 线束拉力测试值

大家早上好,请教一个关于IPC-A-620线束拉力测试值的问题。
在IPC-A-620 “表19-12 拉力测试值”中的"NE“是代表什么意思?
实际生产中碰到此类线束时该如何定义拉力值,谢谢。


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