Which type of thermocouple is suitable for molten aluminum?
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Which type of thermocouple is suitable for use with molten aluminum? The thermocouples used in our company for molten aluminum always get covered with aluminum slag on their surface; over time, a layer of this slag forms, which leads to inaccurate temperature readings. When workers try to remove this slag from the bottom of the boiler using tools, they risk breaking the thermocouples. I would appreciate advice from those who are more experienced in this area
This post was last edited by yunrun on 2016-8-26 at 18:04. Original poster, posting links to product recommendations is not allowed on this forum. Please visit the website shown on my profile; you can find this product on the page \"Product Center → Thermocouples → Aluminum Melting Thermocouples\". I hope this helps you.
This is a challenge for the industry. It’s not that easy to solve.
Hello, do you have experience in this area? Could you give me some advice?
Your question is not about what type of thermocouple to use, but rather what material the protective casing should be made of. As long as the thermocouples have the same calibration value, they are all the same; what matters is the material of the casing!
Right. What material is this sleeve made of? It has a long lifespan and does not stick to aluminum slag
I’m not qualified to give advice; you can add my name and we can discuss it together
For the protective sleeve, silicon nitride could be tried; it is also a challenge in terms of temperature measurement, so one can only choose what is suitable for one’s own manufacturing process. Currently, the companies in China that produce such protective sleeves are not very satisfactory; if you come across one, you can recommend it to me: lol