Hall Speed Sensor Magnet Hall speed sensor magnet is mainly used in locomotive control system to provide necessary guarantee for vehicle driving safety. Its working principle is that when the rotating mechanism of the sensor rotates under the action of external drive, it will drive the permanent magnet to rotate. The magnetic field passing through [...]
4 Types of Industrial Magnets Characteristics Industrial magnet is called industrial monosodium glutamate, which is widely used. Industrial magnets can be divided into: aluminum nickel cobalt magnet, ferrite magnet, samarium cobalt magnet and neodymium iron boron magnet. Description of characteristic parameters of four types of industrial magnets Characteristic unit AlNiCo Ferrite Rare Earth Magnet [...]
Comprehensive Guide to Magnetic Performance Testing Do you know that the performance of your sintered NdFeB magnets can make or break your high tech applications? Learn the latest techniques to get top quality and reliability. Magnetic Performance Standards How do manufacturers guarantee every NdFeB magnet meets the performance standards? What are the new methods to [...]
Magnets are Everywhere What Happened ? It all began rather quietly in 1984. Scientists working independently at General Motors and Sumitomo Special Metals discovered that when they combined the rare earth mineral neodymium together with iron and boron, they could create the world’s strongest permanent magnets: up to 10 times stronger than all other ceramic [...]
How to Make Magnetic Slime Put a twist on the classic slime science project by making magnetic slime. This is slime that reacts to a strong magnetic field, like a ferrofluid, but it's easier to control. It's easy to make, too. Here is what you do: Magnetic Slime Materials white school glue (e.g., Elmer's glue) [...]
How to Make Liquid Magnets A liquid magnet, or ferrofluid, is a colloidal mixture of magnetic particles (~10 nm in diameter) in a liquid carrier. When no external magnetic field is present, the fluid is not magnetic and the orientation of the magnetite particles is random. However, when an external magnetic field is applied, the [...]
The Science of Magnetic Field Lines A magnetic field surrounds any electric charge in motion. The magnetic field is continuous and invisible, but its strength and orientation may be represented by magnetic field lines. Ideally, magnetic field lines or magnetic flux lines show the strength and orientation of a magnetic field. The representation is useful [...]
Magnetizing Steel without Special Tools Step 1 Find north. Find north. If you have a compass, the needle will point directly to magnetic north. Otherwise finding true north should be good enough for this method. Step 2 Arrange the steel so it points north. Arrange the steel so it points north. Put the steel object [...]
Magnetize Steel Using a Battery Strip the insulation off both ends of a wire. Using wire stripping pliers, strip about 1 in (2.5 cm) of insulation from each end of an insulated wire. You'll need enough wire to wrap around your steel object at least 10 times. "Enameled wire" with thin insulation will have a [...]
Magnetizing Steel Using an Existing Magnet Use this to quickly make a temporary magnet. Keep a strong magnet around, and you can magnetize some types of steel with a couple minutes of work. This turns the steel into a weak magnet that loses its magnetism over time. This method is ideal for magnetizing a screwdriver, [...]
Making an Electromagnet Gather the necessary materials. To make an electromagnet, you will need insulated copper wire, a piece of metal with known iron content, a 12-volt battery (or other DC power supply), wire strippers/cutters, and electrical tape. The insulated copper wire needs to be thin enough to easily wrap around the metal and long [...]
Magnetize a Metal Using Striking Hammer Gather the necessary materials. To magnetize a metal using a hammer, you will need a compass, a hammer, and a piece of metal with some iron. These items can easily be purchased at a local hardware store. A metal alloy that doesn’t have iron in it is less likely [...]