Why do you like to use ferrite magnets? Because it does not rust, does not oxidize, does not corrode and is absolutely environmentally friendly. Ferrite Driver Units,Speaker Driver Unit,driver unit with ferrite magnet,Ferrite Drivers,Horn Speaker Driver Taixing Minsheng Electronic Co.,Ltd. , https://www.msloudspeaker.com
At present, it is generally rumors that the resolution of the next generation of iPad flat screen will be increased to 2048×1536 pixels. Today, media has found new evidence from iBooks 2 just released by Apple.
According to 9to5Mac provides Apple iBooks 2 code screenshots, including a folder with "2x.png" words, which also indicates that the upcoming iPad 3 screen resolution will be doubled than the iPad 2.
At the same time, the iTunes U and iBooks 2 bookmark pictures also show Retina HD background images and HD icons specifically prepared for the iPad. It should be noted that, as far back as iBooks 1.2, there are some iPad high-definition pictures.
Why don't ferrite magnets rust?
The chemical name of ferrite magnet is iron tetroxide. The main components are: Fe3O4. It is already an oxide of iron, so it is very difficult to be oxidized again. Other magnets (the main component is iron) are made of magnetized metal iron or other elements. Like other iron and steel, they can be oxidized and rusted, and the oxidized part will lose their magnetism.
What are the advantages (advantages) of ferrite magnets
1. Low cost, low price. Raw material cost is cheap.
2. Good temperature stability. It can be used in temperatures of -40 degrees Celsius and +350 degrees Celsius.
3. It is just mentioned that it does not rust.
4. The demagnetization curve is approximately a straight line.
5. Light weight, density is (4.6-5.1) X103kg/M3
6. The anisotropy constant of the magnetic crystal is large.
7. Large coercivity Hc (between AlNiCo alloy material and rare earth cobalt permanent magnet material)
8. High resistivity.