One, there are many kinds of magnet, generally divided into two types: permanent magnetic and soft magnetic, what we call the magnets, generally refers to the permanent magnet.
Permanent magnet divides two categories: the first major categories are: metal alloy magnet ndfeb magnet Nd2Fe14B)
, samarium cobalt magnet (
, aluminum nickel and cobalt magnet (
The second major categories are: ferrite permanent magnet material (
Commercialization of 1, ndfeb magnet, it is found that the highest performance magnets, known as magnetic king, has the extremely high magnetic to its maximum magnetic energy product (
Above ferrite (
More than 10 times.
Machining properties of its itself is also quite good.
Working temperature up to 200 degrees Celsius.
And the quality of a material is solid, stable performance, good cost performance, so its application is very extensive.
But because of its chemical activity is very strong, so you have to handle with polish on the surface layer.
Such as zinc plating, Ni, electrophoresis, passivation, etc. )
Ferrite magnets: it is the main raw material includes BaFe12O19 and SrFe12O19.
Manufactured by ceramic technology, the quality of a material is hard, brittle material, because of the ferrite powerful magnets have good temperature resistance, low cost, moderate performance, has become the most widely applied permanent magnets.
Alnico magnets, is made from aluminum, nickel, cobalt, iron and other trace metal elements constitute a kind of alloy.
Casting process can be processed into different sizes and shapes, machinability is good.
Casting aluminum nickel and cobalt permanent magnet has the lowest temperature coefficient is reversible, working temperature can be as high as 600 degrees Celsius above.
Alnico permanent magnet products are widely used in all kinds of instruments and meters and other application fields.
4, samarium cobalt (
According to the composition of different divided into SmCo5 and Sm2Co17.
Because its material is expensive and make its development was restricted.
Samarium cobalt (
As a rare earth permanent magnets, not only have higher magnetic energy product (
And reliable coercive force and good temperature characteristic.
Compared with the ndfeb magnets, samarium cobalt magnet is more suitable for working in high temperature environment.
Magnet technology: ndfeb magnets, samarium cobalt magnet, alnico magnets, ferrite magnet production process is also different from process 1, ndfeb magnet, sintered ndfeb magnets and adhesive ndfeb magnets, we mainly speak of sintered ndfeb magnet.
Ndfeb magnet process is as follows: process: ingredients & rarr;
Ingot smelting system & rarr;
Milling & rarr;
Molding & rarr;
Sintering tempering & rarr;
Magnetic detection & rarr;
Grinding & rarr;
Pin cutting processing & rarr;
Electroplating & rarr;
The finished product.
Sintering tempering of ingredients is a foundation, is the key tools: ndfeb magnet manufacturers have a melting furnace, a broken machine, ball mill, jet mill, pressing forming machine, vacuum packaging machine, such as static pressure machine, sintering furnace, vacuum heat treatment furnace, magnetic tester, gauss meter.
Ndfeb magnet processing tools: is there a special slicing machine, cutting machine, flat grinding machine, double-sided machine, punching machine, chamfering machine, electroplating equipment magnet company is specialized in the production,
Powerful magnet company, has factories in dongguan city based wangniudun pier town.
Magnet products used in toys, jewelry, crafts gifts, handmade gift box, leather handbags invisible magnetic button, plastic hardware products, audio equipment and other industries.
Our company is located in dongguan city based wangniudun block cao beijiao town five chung village industrial zone, the company can provide customers 24 hours delivery, 36 hours to the customers specifications template.
Dongguan magnet products co. , LTD. Technique support: all network company address: China guangdong dongguan dongguan city based wangniudun town pier five chung industrial zone telephone: 0769 -
The 81313183 guangdong ICP for 16113157