How Much Temperatures Can be Rare Earth Magnet Heat?
Neodymium Magnet Damage From High Temperatures
If a Neodymium Rare Earth Tube Magnet is put into a red-hot fire, then it would not be surprising if the magnetic properties are destroyed. However, what if the same Tube Magnet is just exposed to steam being flushed through a pipeline system to clean the pipes?
Tube Magnets manufactured with high quality Neodymium Magnets are able to operate well in temperatures up to 212 degrees F. There is a gradual drop in magnetic strength when the temperature rises above 176 degrees F, but this loss in magnetic strength recovers when the temperature falls back to normal levels.
However, as soon as the Neodymium Rare Earth Tube Magnets are exposed to temperatures exceeding 212 degrees F, the magnetic strength becomes compromised. On returning to normal operating temperatures below 176 degrees F, there is an irreversible loss in magnetic strength and permanent damage.
In a pipeline which is cleaned using steam, the temperature will be above 100 degrees C for a period of time. This will certainly damage any standard Neodymium Rare Earth Tube Magnets or Magnetic Separators (e.g. the Magnetic Liquid Filter) installed in the pipeline. However, most users are totally unaware of the potential loss in magnetic separation performance and that the ability of the Magnetic Separator to remove small pieces of metal contamination has been permanently compromised.
Magnetic Separators in High Temperature Environments
There are types of Neodymium Rare Earth Magnets that are designed to operate in high temperature environments. These tend to be lower in magnetic strength at room temperature, but the magnetic field does not degrade as quickly as standard Neodymium Magnets at higher temperatures. Also, on returning to normal temperatures, there is only a small irreversible loss in magnetic field, which is only experienced when first exposed to high temperatures.Rare Earth Magnet Heat
This type of high temperature Neodymium Rare Earth Magnet should be used in pipelines which are being cleaned for prolonged periods with steam.
For applications where there are extreme high temperatures (exceeding 302 degrees F), then the best option is to use Samarium Cobalt Rare Earth Magnets (SmCo). These retain their magnetic properties in temperatures up to 572 degrees F. However, such applications are rare.Rare Earth Magnet Heat
It is recommended that the magnetic properties and strength of any Magnetic Separator installed in a pipeline cleaned with steam or in an environment where there is constant exposure to high temperatures is checked on a regular basis (e.g. during an annual Magnetic Separation Audit). The best way to do this is with a Magnetic Pull Test Kit.
For further details on Magnetic Separators designed for high temperature applications, please contact our technical sales team.
Industrial Irregular HAST NdFeB Magnets, Anti-Corrosion Custom Neodymium Magnets, strong block shaped sintered neodymium magnet, HAST Nd magnets, high anti-corrosion custom rare earth irregular magnets, Industrial Permanent Custom Neodymium Magnets block / arc / ring / disc China supplier Industrial Irregular HAST NdFeB Magnets Features: Catelogy : irregular magnet Certification : ISO9001 RHOS Place of […]
Anti-Corrosion Custom Triangle Neodymium Magnets, strong Triangle shaped sintered neodymium magnet, HAST NdFeB magnets, higher anti-corrosion custom rare earth irregular magnets, Triangular Permanent Magnets, Industrial Permanent Custom Neodymium Magnets arc / ring / disc China supplier Anti-Corrosion Custom Triangle Neodymium Magnets Features: Catelogy : irregular magnet Certification : ISO9001 RHOS Place of Origin : Ningbo,China […]
SS304 Magnetic Filtration System, Stainless Steel Magnetic Filter Rods, Food Industry Grade Size Options Available Stainless Steel NdFeB Filter Bar Magnet, powerful SS304/SS316 tube neodymium magnets China Supplier SS304 Magnetic Filtration System Features: Shape Rod CLEANABLE MAGNETIC RODS Permanent rare earth magnetic rod placed in filter bag cleans steel and iron chips from coolant or […]
12000 Gauss Stainless Steel Magnetic Filter Rods, Food Industry Grade Size Options Available Stainless Steel Filter Bar Magnet, powerful SS304/SS316 tube neodymium magnets 12000 Gauss Stainless Steel Magnetic Filter Rods Parameters: Shape: Rod Magnetic Face: 25mm dia Thickness: 150mm Grade: N42 Plating: S’Steel Material: NdFeB Performance (Gauss): 12000 Max Temp (degrees C): 80 Fixing: M8 […]