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Finite element method (fem) low temperature set-point changes magnet manufacturer

by:Newland     2020-04-18
Magnet manufacturer finite element method (fem) low temperature set-point changes in magnetic circuit measurement is in commonly under the condition of normal temperature ( About 20 degrees) . After the magnetic circuit of magnetization, after a 40 degrees low temperature changes ( Sometimes special low temperature test) , working point change, if the original incorrect working point, when the load Bd/Hd is less than a certain value, the temperature is going to happen phenomenon of irreversible J what make temperature and rising from low temperature to room temperature, the working point is not only difficult to restore to its original position, status actually fell. So the magnet manufacturer must have long anticipated when the design, makes every effort to avoid this kind of phenomenon. Force coefficient of speakers force coefficient measurement can adopt the traditional measuring method and special equipment, system measuring method using the tesla meter, measuring at various points along the magnetic gap magnetic flux density. This method is small investment but not convenient and accurate. P with equipment such as the KLIPPEL analysis system ( KLPPEL分析仪系统) 。 Advantage is convenient, fast and intuitive, but the cost is high. Factors affecting the quality of rolled magnet products: the ratio of the tube rolling machine is the ratio of the adjacent two iron cylinder linear velocity, known as the roller speed ratio. Make the rolling machine has the purpose of speed ratio, not only make the rolling stick in the roller, in turn, but also is to make plastic plasticizing, better because it can make the material more shearing action. In addition, the magnet manufacturer for the stretch and orientation of rolling material has been made, so that the film thickness decreases and mass M. In order to achieve stretch and orientation of the S, auxiliaries and calender roller speed also have corresponding ratio. This makes away from roller, cooling roller, winding roller linear velocity increases, in turn is greater than the calender machine Lord roller ( General four roll calender will be subject to three roll) The linear velocity. But ratio cannot be too big, otherwise, the film thickness will be uneven, sometimes make the film produces too much stress. Try to avoid stretching film cooling. Adjust the speed ratio, the roller can neither make material package, and can't afford not to roll. Ratio will occur roll phenomenon; On the other hand, will appear not suction roll phenomenon, so that air with people, and make the product appear bubbles. For plate, can produce & other; Shell & throughout; Bad phenomenon, plasticizing, cause the loss of quality. In the three-roll calender, and roller speed ratio of the average of 1:1. 05, and lower roller generally take the same speed, so as to ironing effect. In addition, away from roll and rolling machine Lord roller speed ratio to control properly, speed ratio is low, can affect away from; The extension of speed ratio is too large, will generate too much. Production thickness of 0. 10 to 0. 23 mm film, away from rollers linear velocity is generally 10% ~ 34% higher than the main roller. Magnet company is the specialized production ( Ndfeb) 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. Magnet experts to find and package your satisfaction, more magnets can view our company website WWW information. yirongciye。 com/。 This article rigorous reproduced, if there are any violation, the consequence is proud! Magnet, powerful magnets, special-shaped magnets, magnet manufacturer,
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