又稱高(gao)溫(wen)(wen)貴金屬熱電偶,鉑(bo)(bo)(bo)銠(lao)有(you)單鉑(bo)(bo)(bo)銠(lao)(鉑(bo)(bo)(bo)銠(lao)10-鉑(bo)(bo)(bo)銠(lao))和雙鉑(bo)(bo)(bo)銠(lao)(鉑(bo)(bo)(bo)銠(lao)30-鉑(bo)(bo)(bo)銠(lao)6)之分,它們作為溫(wen)(wen)度測量傳感器,通常與溫(wen)(wen)度變(bian)送器、調(diao)節器及顯(xian)示儀表等(deng)(deng)配套使用,組成過(guo)程(cheng)(cheng)控(kong)制系(xi)統,用以直(zhi)接測量或控(kong)制各種生產(chan)過(guo)程(cheng)(cheng)中0-1800℃范圍內的流體(ti)(ti)、蒸汽和氣體(ti)(ti)介質以及固體(ti)(ti)表面等(deng)(deng)溫(wen)(wen)度。適用于(yu)各種生產(chan)過(guo)程(cheng)(cheng)中高(gao)溫(wen)(wen)場合,廣泛應用于(yu)玻璃(li)及陶瓷及工業鹽(yan)浴爐等(deng)(deng)測溫(wen)(wen)。
<span font-size:16px;background-color:#ffffff;"="" style="margin: 0px; padding: 0px; list-style: none; color: rgb(51, 51, 51); font-family: 宋體, "serif"; font-size: 12px; text-wrap: wrap; background-color: rgb(255, 255, 255);"> 鉑(bo)(bo)銠(lao)熱(re)(re)電(dian)(dian)偶(ou)為(wei)貴金(jin)屬熱(re)(re)電(dian)(dian)偶(ou)。偶(ou)絲(si)直徑規定(ding)為(wei)0.5mm,允許偏差-0.015mm,其正極(ji)(ji)(BP)的名(ming)義(yi)化學成分(fen)為(wei)鉑(bo)(bo)銠(lao)合金(jin),其中含(han)銠(lao)為(wei)30%,含(han)鉑(bo)(bo)為(wei)70%,負極(ji)(ji)(BN)為(wei)鉑(bo)(bo)銠(lao)合金(jin),含(han)銠(lao)為(wei)量6%,故俗稱雙鉑(bo)(bo)銠(lao)熱(re)(re)電(dian)(dian)偶(ou)。該鉑(bo)(bo)銠(lao)熱(re)(re)電(dian)(dian)偶(ou)長(chang)期#高使用(yong)溫度(du)為(wei)1600℃,短期#高使用(yong)溫度(du)為(wei)1800℃。
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