Magnetic materials refer to strong magnetic substances, which are ancient and widely used functional materials. Modern magnetic materials have been widely used in our lives, such as permanent magnet materials as motors, applications to ferrous core materials in transformers, magnetic discs used as memory, and floppy disks for magnetic recording of computers. Magnetic materials can be divided into soft magnetic materials and hard magnetic materials according to the difficulty of demagnetization after magnetization. Substances that are easy to remove magnetism after magnetization are called soft magnetic materials, and substances that are not easy to demagnetize are called hard magnetic materials. Generally speaking, the residual magnetism of soft magnetic materials is small, and the residual magnetism of hard magnetic materials is larger.
Magnetic material detection
Detection range:
Electrical steel, nickel-based alloys, rare earth alloys, alloys, ferrites, intermetallic compounds, speakers, microphones, meters, buttons, motors, relays, sensors, switches, magnetrons, traveling wave tubes, microwave electron tubes, picture tubes, titanium pumps, microwave ferrite devices, magnetoresistive devices, Hall devices, magnetic bearings, concentrators, magnetic separators, magnetic chucks, magnetic seals, magnetic blackboards, toys, signs, password locks, copiers, thermometers, medical for magnetic therapy, magnetized water, magnetic anesthesia, magnetic mines, electromagnetic guns, All kinds of household appliances, permanent magnet materials, soft magnetic materials, spin magnetic materials, pressure magnetic materials, etc.
Test items:
Magnetization curve, magnetic induction intensity, coercive force, magnetic conductivity, Curie temperature, hysteresis loss, resistivity power dissipation, etc.
Testing standard:
GB/T 4180-2000 Rare earth cobalt permanent magnet materials
GB/T 21219-2007 Classification of magnetic materials
GB 10129-1988 Measurement method for medium frequency magnetic performance of electrical steel sheets (with bands).
GB/T 19404-2003 Main performance measurement method for microwave ferrite devices
GB/T 10192-1988 Dimensions of threaded cores made of magnetic oxides
GB/T 13888-2009 Method for measuring the coercive force of magnetic materials in open magnetic circuits
GB/T 15822.2-2005 Non-destructive testing Magnetic particle testing Part 2: Testing media
GB/T 19346-2003 Amorphous nanocrystalline soft magnetic alloy AC magnetic performance test method
GB/T 13744-1992 Measurement of nickel plating thickness on magnetic and non-magnetic substrates
GB/T 3217-1992 Magnetic test method for permanent magnet (hard magnetic) materials
GB/T 20168-2006 Fast quenching NdFeB permanent magnet powder National Quality Supervision, Inspection and Quarantine
GB/T 4956-2003 Non-magnetic overlay thickness measurement on magnetic substrates Magnetic method
GB/T 19345-2003 Amorphous nanocrystalline soft magnetic alloy strip National Quality Supervision and Inspection Inspection
GB/T 15822.3-2005 Non-destructive testing Magnetic particle testing Part 3: Equipment State Quality Supervision, Inspection and Quarantine
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