The float balls are also designed to look fancy, which has ended up harming the company and its customers
Thread Content
I just bought a new float ball; it’s claimed to be a new type of product, without a traditional feedback rod. In other words, no matter how skilled you are, it’s a shame you can’t know where my ball is It stopped working within less than 10 hours of being put into operation – 27.8% failure rate; it simply wouldn’t work. Damn it, this is unacceptable. Operations were halted, the access panel was opened for inspection, and everything inside seemed to be functioning normally. The two gears engaged with each other to change angles, with the magnet playing a role in that process. It seems the designers are experts in rotor design; there’s nothing else to do. The unit was taken offline and replaced with another one, but I doubt that will solve the problem. I’m waiting to see what happens next. I’d like to ask my colleagues: what is the temperature tolerance of this magnet? The temperature in the vacuum distillation tower is roughly 300 degrees at the moment.
I remember it was around 200; it didn’t reach 300
This is likely due to an issue with the conditions at the time of purchase; it has nothing to do with the manufacturer
The temperature tolerance of neodymium-iron-boron magnets is 100 degrees; their magnetic strength begins to decline when heated to around 100 degrees, though the rate of decline is slow. After reaching 150 degrees, the decline in magnetic strength becomes significant, and after being kept at 150 degrees for 20 minutes, the magnetic strength is essentially lost.
A floating ball? Hah, I’ve never used anything this fancy before.
High-temperature magnets are prone to demagnetization: lol
What magnets are you looking at? Ordinary magnets start to lose their magnetism around 300
I’ve never encountered magnetic meters used in this way before; they’re usually just rotor flowmeters. I didn’t expect that this approach is also used for measuring liquid levels – I’m really behind the times
Ferrites can withstand temperatures of up to 80 degrees; rare earth neodymium-iron-boron magnets can handle temperatures of 120 and 180 degrees. Samarium-cobalt magnets can tolerate temperatures of 250 and 350 degrees, while iron-chromium-cobalt magnets can withstand temperatures of 400 degrees. In any case, as the temperature rises, magnetism decreases.
I’ve learned something new – buoyants with such high temperatures aren’t used.
Around 360 to 370 degrees in the vacuum tower; in my case, it’s the float ball linkage that moves, while the ball’s axis remains stationary