国产乱子伦无码视频免费_日本精品一区_日韩精品成人在线观看_欧美老熟妇爱操视频在线播放_无码人妻免费观看_欧美性爱在线免费_美女中文字幕_稀缺小u女呦品呦视频_黄色视频日_日韩精品视频免费在线观看_日日弄天天弄美女BBBB_女同久久久_日逼黄片_天堂中文在线资源网_四虎婷婷成人电影

產(chǎn)品資料
臺(tái)灣產(chǎn)千住錫膏
產(chǎn)品型號(hào):M705-S101HF-S4
產(chǎn)品品牌:千住金屬
13543272580
點(diǎn)擊詢價(jià)
詳細(xì)介紹
臺(tái)灣產(chǎn)千住錫膏

臺(tái)灣產(chǎn)千住錫膏 ECO SOLDER PASTE M705-S101HF-S4
1.Scope
This specification covers the solder paste,
ECO SOLDER PASTE M705-S101-S4, using lead-free solder alloy, used for
wiring connection and so on, of electrical and electronic parts.
2.Standard
.1Chemical composition of solder alloyTest methodSTM-9
Composition and impurities are prescribed as following tables
Composition ( mass% )
3.0 ± 0.1
0.50 ± 0.05
Balance
2.2Performance and standard
Items
Performance                 Standard
Test Method
Appearance
It shall not have separated flux,and shall be in a smooth pastestate.
STM-1
 
Flux content (mass%)
11.5 ± 1.0
STM-5
Viscosity of solderpaste (Pa s)
190 ± 30
STM-7-8
Grain size of powder
um
36 25
STM-12-4
Copper plate corrosion test
Shall be passed
STM-28-1
Insulation resistance
Ordinary state 1 × 10 or more After humidifying 1 × 10 or more
STM-30-8
Solution resistance
100 or more
STM-32
Reflow property
No unmelted solder nor black product shall be permissibl
STM-34
 

粵公網(wǎng)安備 44030602001479號(hào)

| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |