足彩跟单app


形貌观察与测量

 

锡须观察与测量 电子显微形貌观察与测量 表面粗糙度分析
金属间化合物观察与测量 光学显微形貌观察与测量

 

背景:

XIXUSHIZAICHUNXIHUOXIHEJINDUCENGBIAOMIANZIFASHENGZHANGCHULAIDEYIZHONGXIZHANGXINGZHUANGDEXIDEJIEJING。ZAIDIANZIXIANLUZHONG,XIXUHUIYINQIDUANLU,JIANGDIDIANZIQIJIANDEKEKAOXING,SHENZHIYINFADIANZIQIJIANGUZHANGHUOSHIXIAO。YOUYUXIXUTONGCHANGZAIDIANDUZHIHOUJINIANSHENZHIJISHINIANCAIKAISHISHENGZHANG,YINERHUIDUICHANPINDEKEKAOXINGZAOCHENGQIANZAIDEWEIHAIBIJIAODA。

足彩跟单appCHUYUHUANBAO、RENLEIZISHENJIANKANGDEKAOLV,WOGUOYIJIRIBEN、OUMENG、MEIGUODENGGUOJIAHUODIQUXIANGJICHUTAIXIANGGUANFAGUIHUOFALINGMINGWENXIANZHIHUOJINZHIZAIDIANZIDIANQISHEBEIZHONGSHIYONGQIAN,SHIDIANZICHANPINWUQIANHUA。DIANZIXINGYEWUQIANHUADEQUSHI,YIWEIZHEDIANZIGONGYEZHONGZUIGUANGFANYINGYONGDESn-PbHANLIAOJIANGCHENGWEILISHI,TONGSHIGUANGFANYINGYONGDESn-PbYEJIANGBEIXINDEJINSHUHUOHEJINSUOQUDAI,ZUOWEIKENENGDETIDAIZHE,CHUNSn, Sn-Bi, Sn-Ag-CuJINGYANJIUBIAOMING,JUNYOUQIANZAIDEXIXUZIFASHENGZHANGWENTI。

 

应用范围:

足彩跟单appDIANZIYUANQIJIAN、QICHEDIANZI、YILIAO、TONGXUN、SHOUJI、DIANNAO、DIANQIDENG。

 

测试步骤:

DUIYANGPINJINXINGBIAOMIANDUBOJIN,FANGRUSAOMIAODIANZIXIANWEIJINGYANGPINSHIZHONG,DUIKEHUYAOQIUDECESHIWEIZHIJINXINGFANGDAGUANCHABINGCELIANG。

 

参考标准:

JESD 22A121.01 Test Method for Measuring Whisker Growth on Tin and Tin Alloy Surface Finishes

JESD201A Environmental Acceptance Requirements for Tin Whisker Susceptibility of Tin and Tin Alloy Surface Finishes

足彩跟单appIEC 60068-2-82-2009 Environmental testing - Part 2-82: Whisker test methods for electronic and electric components

 

DIANXINGTUPIAN:

锡须观察与测量 锡须观察与测量
锡须观察与测量 锡须观察与测量

 



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