What is a Laminated Magnet?
Laminated permanent magnets are a specially designed magnetic component. It is to cut the whole magnet into many small magnets, and then glue them together with specific glue. These small magnets are insulated from each other to reduce electromagnetic eddy currents. For example, rare earth magnets are bonded to each other or to a steel plate, with the entire stack having the same polarity.
Why Choose Laminated Magnets?
Laminated Magnets Reduce Eddy Current Loss in High-Efficiency Motors. High efficiency demands the best materials, and the Arnold L Type laminated magnets are proven to reduce eddy current losses in high-efficiency motors. Less eddy current loss means less heat and less waste.
What Are the Characteristics of Laminated Magnets?
- The consistency of superficial magnetic force is excellent;
- The unique production way increases the competitive advantage in production efficiency, manufacturing accuracy, and cost control;
- This magnet has excellent resistance to high temperature and humidity the anti-corrosion properties because of using overall plating surface protection technology;
- By means of insulated stitching, these small magnets are insulated from each other;
- The thickness of the insulating layers is within 0.04mm;
- The bond strength of insulating layers can reach more than 50Mpa at room temperature;
- The maximum working temperature is up to 200 ℃;
- The geometric tolerance for the laminated magnet is within±05mm;
- They are available in samarium cobalt and neodymium iron boron materials;
- Custom sizes and shapes are acceptable too.
Main Applications of Laminated Magnets
Now aerospace, automotive, motorsport, and industrial markets are turning to laminated rare earth magnets, and are working to balance the tradeoff between power and heat.
FAQs About Laminated Magnets
Q1: What are the benefits of using laminated magnets?
A: Laminated magnets offer reduced eddy current losses, higher magnetic flux density, improved thermal stability, and reduced magnet volume.
Q2: How are laminated magnets made?
A: Laminated magnets are made by stacking thin layers of magnetic material with insulating layers, then bonding them together using a process such as hot pressing or epoxy bonding.
Q3: What applications are laminated magnets used for?
A: Laminated magnets are used in applications such as electric motors, generators, transformers, and magnetic sensors.
Q4: What types of magnetic materials are used to make laminated magnets?
A: Laminated magnets can be made using a variety of magnetic materials, including neodymium-iron-boron (NdFeB), samarium cobalt (SmCo), and ferrite.
Q5: What are the key design considerations for laminated magnets?
A: Design considerations for laminated magnets include the thickness and number of magnetic and insulating layers, as well as the bonding process used.
Q6: Are laminated magnets environmentally friendly?
A: Laminated magnets are generally considered more environmentally friendly than solid magnets, as they require less magnetic material and generate less waste during manufacturing.
