Magnetic test

Ⅰ. 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