Magnet has a simple name. "Closure_uid_3gwdyb =" 405 "> NdFeB has a simple name. They all begin with" N ", but said the" new "(industry neodymium simplified) and followed by a two-digit number. This number represents Wan Gauss Oersted (MGOe) 1MGOe (cgs units) equal 7958kJ / m3 (SI units) of the largest energy product range is available N24 to N52. lower grades and longer range now about N30 or N33. N50 is ready The highest grade. N52 is possible, but only in a certain scale. Although the N64 calculate the maximum possible energy products, it is impossible to neodymium such a high advantage, will be implemented in the near future (when the latest results are They are often marketed only to direct sales to military applications). A suffix letter (or two letters), then according to the number. It was noted that these letters (or lack thereof), and temperature class. Strictly speaking, this is not correct FIG. letters actually indicates the intrinsic coercivity of the material (HCI). Higher HCI, neodymium magnet material may be exposed to before the magnet will begin to show higher output of the permanent loss of temperature. It is this fact, . is connected to the last letter (S) temperature grade NdFeB magnets current range as follows: - N27, N30, N33, N35, N38, N40, N42, N45, N48, N50, N52, N30M, N33M, N35M, N38M, N40M, N42M, N45M, N48M, N50M, N30H, N33H, N35H, N38H, N40H, N42H, N45H, N48H, N30SH, N33SH, N35SH, N38SH, N40SH, N42SH, N45SH, N28UH, N30UH, N33UH, N35UH, N38UH, N40UH, N28EH, N30EH, N33EH, N35EH, N38EH, N33VH / AH. However, neodymium temperature rating is only a guideline value. NdFeB magnets and magnetic circuit its overall physical size and shape of fact to decide how and the magnet temperature will be performed. For example, in a free space NdFeB magnets demagnetise at a lower temperature than the same size connected to a soft steel NdFeB magnets. It will also demagnetise at a lower temperature than twice the length of the magnetization direction of the NdFeB magnets. intrinsic curve shape also plays a part of the high temperature properties of NdFeB total neodymium magnet magnetic circuit which determines the operating point of the inner curve having a higher operating point ( such as a magnet connected to a low-carbon steel or a longer magnet) magnet will cope higher temperatures, then it will show "knee" when demagnetization signs (operating point through the inner curve). If the external demagnetising field is present, because it could mean that the situation might neodymium magnets at lower temperatures demagnetise more clear. Therefore, it is quickly obvious that the total magnetic circuit, the overall environment and the application as a whole, must be reviewed to determine whether Neodymium magnets will still perform a satisfactory level for the recommended maximum operating temperature of letters (S) in its NdFeB classification. For example, the recommended maximum operating temperature of 150 degrees Celsius rated a magnet might start demagnetise significantly, at 100 degrees C is poorly designed or recommended maximum operating temperature of 80 ° C rated a magnet may begin demagnetise remarkable 100 degrees Celsius design really Okay. The recommended maximum operating temperature is an indicator of likely performance, but the user should review their own design or assist in the design contact us. NdFeB letters are named as follows (where xx is the maximum energy product in MGOe): - recommended maximum NXX 12000 OE / 955kA / m (minimum) 80 degrees Celsius / 175 degrees Fahrenheit NxxM 14000 OE / 1115kA / m (minimum) 100 degrees Celsius / 212 ° F maximum recommended NxxH highest recommendations 17000 OE / 1355kA / m (minimum) 120 degrees Celsius / 248 degrees Fahrenheit NxxSH 20000 OE / 1590kA / M (minimum) 150 degrees Celsius / 302 degrees Fahrenheit maximum recommended NxxUH 25000 OE / 1990kA / M (minimum) 180 ° C / 356 ° F maximum recommended NxxEH 30000 OE / 2385kA / m (minimum) to 200 degrees Celsius / 392 degrees Fahrenheit maximum recommended NxxVH / NxxAH 35000 OE / 2785kA / m (minimum) 230 ° C / 446 Fahrenheit recommended maximum Shenzhen AUO magnet Co., Ltd. Address: Shenzhen Baoan District, Sa Po Wai first industrial zone 20, Block D Tel: 0755-27052468,27052005,27052839 Fax: 0755-27052265 Sales Contact : 13,823,780,428 Wang E-MAIL: youdamagnet@sina.com AUO Group (Hong Kong) Co., Ltd. Address: new cultural center on the 14th Science Museum Road, Tsim Sha Tsui, Kowloon, Block A 9 Floor, Room 917 Tel: 00852-27935511 Fax: 00852-35902333 Sales Contact: Mr. Wang 13823780428 E-MAIL: youdamagnet@sina.com URL: http: //www.youdamagnet.com