Ningbo Mag Spring Magnetics Ltd.315204About UsNo.99 Lipu Road Xiepu Zhenhai Ningbo ZhejiangMAG SPRING® is a subsidiary of SOUWEST MAGNETECH® (Stock No. 836961) that focuses on permanent magnets and magnetic systems developing, designing,producing and saling in Ningbo, China since 1999. The products include NdFeB Magnets, SmCo Magnets, Magnetic Tube,Pot Magnets,Grate Magnets and other magnetic systems. High Efficiency,Enterprising Spirit,Thankfulness,All win is our company Core Value.Ningbo Mag Spring Magnetics Ltd.315204About UsNo.99 Lipu Road Xiepu Zhenhai Ningbo ZhejiangMAG SPRING® is a subsidiary of SOUWEST MAGNETECH® (Stock No. 836961) that focuses on permanent magnets and magnetic systems developing, designing,producing and saling in Ningbo, China since 1999. The products include NdFeB Magnets, SmCo Magnets, Magnetic Tube,Pot Magnets,Grate Magnets and other magnetic systems. High Efficiency,Enterprising Spirit,Thankfulness,All win is our company Core Value.Ningbo Mag Spring Magnetics Ltd.Ningbo Mag Spring Magnetics Ltd.Ningbo Mag Spring Magnetics Ltd.Ningbo Mag Spring Magnetics Ltd.Ningbo Mag Spring Magnetics Ltd.Ningbo Mag Spring Magnetics Ltd.Ningbo Mag Spring Magnetics Ltd.Ningbo Mag Spring Magnetics Ltd.Ning
How to prove SmCo magnets can work on 550celsius degree ?
How to prove SmCo magnets can work on 550celsius degree ?
06/12/2021Product News
How to prove SmCo magnets can work on 550celsius degree? Heating test is an effective method.
In general , we can supply demag curve(as curve 1 amd curve 2) of magnet on different temperature to sure it can work on certain temperature,but maxmium temperture is no more 200 celsius degree . When working temperature more than 200 celsius degree , the effective way is check the irreversible flux loss before and after heating test.
the detailed test step is followed :
1. Full magnetized test samples D10x10 , test the magnetic flux1.
2. Place the samples on to the iron plate and put the plate into heating furnace.
3. Heating magnets samples on to 550 Celsius Degree and keep 550 Celsius degree for 1 or 2 hours .
4. Stop heating and open the furnace door and until the temperature down to room temperature.
5. Test magnetic flux2 , and calculate the flux loss base on folllowing format :
Flux loss = (flux2- flux 1)/flux1*100%
6. Flux loss is about - 5% , smco magnets is proved ok for using in 550 Celsius degree.