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低溫泵槽內的低溫不凍液怎么配比?

http://www.sewingmachine-review.com/Admin發布于 關鍵詞:

低溫冷卻液循環泵(以下簡稱低溫泵)和低溫恒溫槽內的低溫不凍液需要一定的配比,下面詳細說明一下:

1、乙二醇水溶液:乙二醇/水55/45(-30℃)、70/30(-40℃)

2、丙三醇水溶液:丙三醇/水70/30(-30℃),使用中需經常檢查低溫不凍液的密度使其滿足如下要求:

①乙二醇水溶液:P20=1079㎏/m3(-30℃)(-40℃)

②丙三醇水溶液:P20=1182.6㎏/m3(-30℃)不凍液用水代替時,其醉低溫度必須在0℃以上。

以上就是實驗室常用的低溫不凍液的配比,請用戶們作為參考,有更多的意見和建議歡迎多多咨詢和交流。

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