How to Select a Magnetizer?

There are many subtle differences in magnetization for different magnetic materials, and it has always been a puzzle for users of magnetic materials and magnetizer manufacturers.
Canmag is engaged in R&D and production of magnetizing machines, demagnetizers and degaussing equipment for many years. Based on its own experience and understanding of magnetic materials, Canmag engineering department has written some opinions and opinions for reference:
How to choose a magnetizer? Canmag is your best choice Magnetic material magnetization is generally three ways in general: Unsaturated magnetization, saturated magnetization, supersaturation magnetization. In which case, which method is used to charge the magnetizer is mainly determined by the requirements of the product. Generally, more saturated magnetization is used in engineering.
1. Unsaturated magnetization:
   It means that at the time of magnetization, the energy does not reach more than 95% of the saturation magnetization. This magnetization is reversible, that is, the remanence of the magnet will gradually decrease with time and the external force magnetic field. Used in special work places, the amount is small.
2. Saturated magnetization:
It means that the magnetization energy reaches the magnetic material. The energy required for the inflection point of the magnetization characteristic is generally 1.5 times (critical pull amount) -2 times of the coercive force (or remanence) in the magnetic material, and is generally 2 times stable. This method can saturate the magnet with saturation. Under normal circumstances, demagnetization does not occur.
3. super saturation magnetization
It refers to the energy required for the magnetization energy to exceed the inflection point of the magnetization characteristic of the magnetic material. Generally, the coercive force of the magnetic material is three times higher than that of the magnetic material. Because of the magnetic material characteristics,
the surface magnetic field of the magnet is saturated, and the magnetization energy is increased. Only minor changes. Therefore, this method is adopted in a higher environment where magnetic energy is required.

Read More

High Pressure Magnetizer

The high-voltage magnetizing machine is a magnetizing device that uses a non-polar highvoltage capacitor and a high-current working mode to output a short pulse current and a fast speed. High-voltage magnetizer has small capacitance loss, good reliability and long life, but the price is relatively high. It is suitable for a variety of magnetic and magnetic fields, especially for various ferrites, rare earth magnets and other circular multipoles, planar multipoles and motors. Magnetization inside and outside. High voltage magnetizer overview The high-voltage magnetizer power supply uses high-quality high-voltage AC capacitors and high-voltage static discharge switches (SCRs) to ensure stable operation of the equipment. The high-voltage magnetizing machine adopts microcomputer chip control and constant current voltage stabilization technology to prevent charging current surge, and has digital setting charging and demagnetizing voltage and shutdown capacitor discharge protection and counting. The high-voltage magnetizer can be used for magnetization of rare earth, ferrite, alumino-cobalt and rubber magnetic materials, including multi-stage magnetization of various devices, magnetization of small motor inner surface, small planar motor, small wind direction adjustment motor, Magnetization of small DC motors, magnetic encoders, electromagnetic flowmeters, isolators, various horns, etc. High pressure magnetizer features
1. The main control uses the latest digital sampling, pulse control circuit. 2. Use non-polar power capacitors to store energy to ensure stable performance and long service life. 3. Using the latest energy transfer and thermal absorption circuit, the charge head has low heat consumption and does not require water cooling (24 hours of work but not hot). 4. Magnetizing voltage can be precisely adjusted; fully automatic tracking protection function, with protection devices such as overcurrent, overvoltage, overheating, delayed start, and delayed shutdown. 5. No fragile components, reliable and durable

Read More

The Working Principle and Main Parameters of the Magnetizer

What is magnetization?
Magnetization is to magnetize a magnetic substance or to increase the magnetic properties of a magnet having insufficient magnetic properties.
The working principle of magnetizing machine (magnetizing power supply):
     The capacitor is first charged with a DC high voltage (i.e., stored energy) and then discharged through a coil (magnetizing fixture) with very small resistance. The peak value of the discharge pulse current is very high, reaching tens of thousands of amps. This current pulse creates a powerful magnetic field within the magnetizing fixture that permanently magnetizes the magnetic material placed in the magnetizing fixture. When the magnetizer capacitor is working, the peak value of the pulse current is extremely high, and the magnetization frequency is also relatively high, and the performance of the capacitor to withstand the inrush current is very high.
The magnetizer can quickly saturate the magnetizing equipment and is dedicated to magnetizing various magnetic materials. The magnetizer is a device that realizes magnetization of the product. The types include capacitive pulse magnetizers, non-energy pulsed magnetizers, and constant current magnetizers.
Main parameters of magnetizing machine (magnetizing power supply) 1. Power supply: AC 220V±10% 380V±10% 50Hz-60Hz 2. Working environment: temperature 0°C -40°C 3. Working magnetization voltage: 0V-600V; 0V-800V; 0V-1200V; 0V-1500V, 0-2500V 4. Magnetizing current: instant 3000A-30000A 5. Capacitance: 200μf-30000μf, capacitors are used according to specific conditions Magnetizing machine (magnetizing power supply) application areas: Magnetic materials: ferrite, neodymium iron boron, aluminum nickel cobalt, samarium cobalt, plastic magnetic Motor: various small motors, DC motors, synchronous motors, electro-acoustic industry: various speakers, microphones, telephones, buzzer generators: car ignition, charging, tachometer, pulse generator instrument categories: ammeter, fuel gauge , tachometer, electricity meter electronic category: CD-R suction cup, printer, slot machine, mahjong machine Fans: various axial fans, automotive cooling fans, computer CPU fans Metals: machinery manufacturing, hardware tools, mold processing Other: compass, refrigerator door seal, stationery, toys, health supplies, packaging supplies

Read More

Magnetizing Machine Daily Standard Maintenance Work Instruction

Maintenance work precautions

1. Turn off the power of the equipment before maintenance.

2. After the maintenance is completed, the site should be inspected and cleaned up.

Primary maintenance (daily)

2 Maintenance content

2.1 Every day, the dust on the surface of the equipment should be cleaned, the area around the magnetizer should be kept clean, no debris should be piled up, and the magnetizing tools and tools should be placed neatly.

2.2 Check whether the fastening screws such as the magnetizer and the magnetizing coil are complete and loose.

2.3 Check the insulation of the magnetizing coil for damage, and whether the connection between the power plug and the socket is reliable.

2.4 Check whether the start, stop, and magnetization buttons are flexible.

2.5 Check whether the connection plug of the foot switch and the magnetizer is stable, whether the foot switch wire is damaged or not, and whether the insulation is intact.

2.6 At any time during work, observe whether the fan on the side of the cabinet is working normally.

2.7 During operation, it should be observed whether the running sound of the equipment is normal, and if there is any abnormality, immediately stop the maintenance.

3 Maintenance cycle: Daily maintenance work should be carried out daily.

Read More