美女胸被狂揉扒开吃奶的网站o_亚洲日韩av中文无码专区_东京热激情无码专区_久久HEZYO久综合亚洲色_欧美成人高清视频_国产精品乡下勾搭老头_欧美一级v片在线播放_成人午夜国产视频_男女猛烈无遮挡免费动态图_亚洲一区国产精品视频

首頁(yè) > 國(guó)外線纜

[問(wèn)題求助] 急問(wèn):UL62熱變形測(cè)試發(fā)現(xiàn)有開(kāi)裂

P:2010-05-13 19:04:59

1

我司在測(cè)試一款無(wú)鹵TPE材料做的UL62電源線時(shí),發(fā)現(xiàn)在熱變形實(shí)驗(yàn)(150度)后,壓的位置附近有裂紋。熱變形本身數(shù)據(jù)是可以通過(guò)的,但是客戶說(shuō)這種裂紋不能接受。查閱了UL標(biāo)準(zhǔn),發(fā)現(xiàn)里面沒(méi)有提到裂紋的問(wèn)題。不知道各位有沒(méi)有碰到類似問(wèn)題,可否通過(guò)調(diào)整押線工藝來(lái)解決?

rolling velocity - 軋制速度 (0) 投訴

P:2010-05-13 20:56:55

2

斷裂伸長(zhǎng)率低了 真正的TPE應(yīng)該沒(méi)有這種現(xiàn)象的 以此類推 冷彎應(yīng)該是NG的

fluorescent tube cable - 日光燈用線 (0) 投訴

P:2010-05-14 08:46:25

3

5.1.8.1 PVC and TPE insulations
The insulation shall show no cracks when specimens of finished unjacketed cords and specimens of the
individual conductors from jacketed cords and types CXWTc, CXTWu, and TXc are exposed to a
temperature of 121 °C ± 2 °C for PVC or TPE rated at 60 °C, or 150 °C ± 2 °C for TPE rated in excess
of 60 °C for 1 h while wound six close turns around a mandrel having a diameter as shown in Table 43.
The specimen shall show no cracks when unwound from the mandrel after cooling to room temperature


從標(biāo)準(zhǔn)上看,有裂紋顯然是不能接受的!(The specimen shall show no cracks when unwound from the mandrel after cooling to room temperature)

eight-form wire - 8字形導(dǎo)線 (0) 投訴

P:2010-05-14 08:49:05

4

不合格的

CCUAP - Computerized Cable Upkeep Administrative Program計(jì)算機(jī)化電纜維護(hù)管理程序[計(jì)劃] (0) 投訴

P:2010-05-16 09:00:06

5

可是這個(gè)說(shuō)的是絕緣(insulation),不是護(hù)套(jacketing)啊

miscellaneous insulated wire - 多色絕緣線,雙色絕緣線 (0) 投訴

P:2014-05-31 01:53:55

6

是啊,同樓上疑問(wèn)。請(qǐng)高手解釋下,絕緣有裂紋可以嗎?標(biāo)準(zhǔn)規(guī)定了嗎?

grooveless rolling - 無(wú)槽軋制 (0) 投訴

6


你需要登錄才能發(fā)表,點(diǎn)擊登錄