When They are First Manufactured Flexible Magnets are Made Through what Process
The addition of synthetic rubber, which is what gives flexible magnet manufacturer their name, is the only thing that differentiates them from ferrite magnets. The transformation of an alloy into a ferrite magnet requires the presence of both strontium carbonate and iron oxide in the right proportions. For further information, please refer to the page that is titled “What are Magnets Made Of?”
On the other hand, the production of the wide flexible magnetic sheets takes place via a method known as calendering. This method involves forcing the molten material between a pair of rollers.
Extrusion
Step 2 – Shaping
After this step, the material, which is still in the liquid state, is made to go through a die that has been pre-heated and cooled into the final shape of the magnet. As an example, a flexible warehouse magnet will be pressed through a die that has a profile in the shape of a C.
The third step is the process of magnetizing the object while it is being cooled.
– The material goes through a transformation as it cools while going through the die
– This occurs as the material is being cut
– After the magnet has cooled, it is moved across a magnetizing plate, which triggers a powerful electromagnet to magnetize a flexible magnet that was already magnetized
– This process is repeated until the magnet is fully magnetized
Flexible magnetic tape that has been laminated.
After that, the flexible magnet is placed in a HMT hot melt film laminating machine, where it is laminated with either a vinyl top layer or an adhesive layer, depending on the customer’s preference.
Please see the page that is titled “What are the parts of a flexible magnetic tape?” for more information. if you require any further information regarding laminates and adhesives.
Attaching a core to a roll of flexible magnetic tape requires the use of a core.
Cutting and rolling are involved in the fifth step of the process.
The length of the flexible magnet is then measured out, and it is cut to fit before being rolled onto a core. The term “core” refers to the circular section of material that can be found in the center of a roll of flexible magnetic tape.
Calendering
In the first stage of the calcination process, an induction furnace is supplied with iron oxide, strontium carbonate, and synthetic rubber.
A powdered mixture of iron oxide, strontium carbonate, and synthetic rubber is heated in an induction furnace at a temperature of 1350 degrees Celsius 2462 degrees Fahrenheit to produce metal oxide. The temperature of the furnace is measured in degrees Fahrenheit.
The rolling of a flexible magnetic sheet is the second step in the process of calendering.
Following the pouring of the molten substance, it is then passed between two rollers, where it is then compressed into a sheet and allowed to cool. In order to achieve a thickness that can range from 0.2 millimeters (0.008 inches) to 5 millimeters (0.2 inches), the sheet is fed through the rollers multiple times.
Magnetic forces that are induced
Step 3 – Magnetising
After that, the sheet is moved across a magnetizing plate, which makes use of a strong electromagnet to magnetize the flexible magnetic sheet that had been utilized up until this point.
Sheets of magnet that have been coated with a laminate
Step 4 – Laminating
Following this step, the flexible magnetic sheet is fed into a HMT hot melt film laminating machine, where it is laminated with either a vinyl top layer or an adhesive. Finally, the sheet emerges from the machine as a finished product.
A magnetic sheet that is flexible being placed on top of a core.
The fifth step consists of cutting and rolling onto the core.
After that, the required length of the flexible magnetic sheet is measured, and it is rolled onto a core. The next step is to cut the flexible magnetic sheet. A magnetic sheet that is flexible will typically have what is known as a core, which is a circular piece of material located in the middle of the roll.
