The neodymium magnets have many characteristics, and hence have wide application in different sectors. They have high resistivity to the demagnetization. Here are some important questions you must ask to the neodymium magnets Lowes.
- What are grades of neodymium magnets available?
- What are the reasons to coat the magnet?
- Is it possible to machine them?
- How are they prepared?
- Do they have a safety hazard?
What do the labels and numbers on magnets depict?
These magnets are available in different categories namely N39, N35, N41 etc. The numerical value here represents grades of the chosen magnet. The magnets with higher grades are usually stronger than their counterparts. N50 is the highest grade magnet introduced so far.
You must have seen the magnets labelled as N42UH. The number 42 indicates strength of this magnet. UH depicts the temperature rating of the magnet purchased. If there are no alphabets stuck to the name, then it means that you have selected standard temperature magnet. This information will prove out to be handy while you make the right choice.
How are they manufactured?
Iron, neodymium and boron are mixed together to manufacture the NIB magnets. The powdered mixture of the three metals is molded under the high pressure conditions. Then, it undergoes the stingering process, during which it is heated in vacuum. Later, it is allowed to cool at room temperature, sliced or grounded into the required shape. The magnets are coated so that they are resistant to rust and corrosion.
These magnets are highly fragile and might break, chip or crack by using improper tools. However, you could use sufficient amount of coolant to ground it. The coolant offers many benefits like it reduces rick of fire, heat fracturing and maintains magnet at lower temperature. It is not advisable to machine handle the permanent magnets.
Check out the different coatings for permanent magnets
These magnets are coated with different metals like zinc, nickel, epoxy, tin, silver, gold etc. depending on the requirements. However, the type of coating you will choose will never impact their performance. Different brands and companies choose different types of coatings according to their application. Nickel offers shiny silver finish to the metal. Black nickel is a better option than nickel as it is more resistant to corrosion.
The magnets coated with zinc offers a unique bluish finish. It often leaves black residue on the hands. Epoxy offers the best plastic coating and 100% resistant to corrosion. They are mostly used to manufacture the toys. However, the coating does not last for a long period. The gold and nickel plating are applied together to offer effective results.
In order to avoid any safety hazard, you have to handle the magnets with care. If you follow the instructions mentioned on the pack and keep them at one foot distance, then they will not pose any harm. However, make sure that they are kept away from the reach of children.
These magnets are highly used in different sectors like medicine and health, education, industry and even around the house.