Magnetic test
Read 49 · Release Date 2018-11-01 16:50:28 · guanliyuanⅠ. Test of magnetic performance
1. Test of magnetic performance
Test item:Br,Hcb,Hcj,(BH)max,Hk,Ms,μrec, Hk/ Hcj, etc.
Test device: Magnetic hysteresis loops measuring apparatus
Test range:Hcj 50~20,000 Oe
2. Magnetic performance in high and low temperature
Test item: Magnetic performance in various high and low temperature environment
Test device: High-low temperature tester
Test range:-40 to 130℃
3. Reversible temperature coefficient
Test item: Temperature coefficient and calculation expectation
Test device:High-low temperature tester
Test range:Set the range of temperature
4. Magnetic field waveform distribution
Test item:Data of magnetic field waveform plane and rotation waveform output
Test device:Waveform tester
Test range:Magnetic material that the volume is close to 0.03 m³
5. Magnetic-flux measurement
Test item:Magnetic moment, magnetic field output, anisotropic magnetic field and orientation angle error
Test device: Diverse helmholtz coils
Advantages of device:Highly flexible portable device, highly efficient automation test system
6. Gauss value
Test item: Surface Gaussian value at a specific location
Test device: Gauss meter, C type jig, yoke or customer-specific work clothes
Test range: The fixed point measurement at specified or specific location
Ⅱ. Physical and corrosion resistance testing capability
1. Salt spray
Test item:Corrosion resistance grade
Test device:Salt spraying tester
Advantages of device:Adopt ASTM B-117 standard, usually output failure time, and also provide pictures after experiment.
2. High temperature high humidity test
Test item:Temperature and humidity endurance test
Test device:Temperature and humidity tester
Test range:80~95℃, 90~100%RH. Generally, conduct trafficability test under 90℃ and 90%RH.
3. Vapor pressure, uncoated magnet
Test item:Vapor pressure test of uncoated magnetic material (PCT test)
Test device:PCT tester
Test range:Weightlessness within 96 hours (or adjusting according to customer needs) under 2 atmospheres, 150 ° C and 100% RH
4. Vapor pressure, coated magnet
Test item:Vapor pressure test of coated magnetic material (PCT test)
Test device:PCT tester
Test range: Overdue failure test under 2 atmospheres, 100% RH to high temperature and humidity
5. Physical strength
Test item: tensile strength, three-point yield strength, peeling test
Test device: Crushing strength tester
Test range: all types of magnetic materials can be tested (with special working clothes and jig)
6. Low zero-G test
Test item: low weight loss, coating adhesion
Test device: HAST tester
Test range: The passivated coating products under 2.5 atmospheres, 130 ° C and 100% RH