The magnetic powder brake is a magnetic powder chain in which a braking component and a moving component are formed by electromagnetic attraction between magnetic powders, and a braking function is generated by a friction force between the braking surface and the working surface.
Magnetic brake is a multi-purpose, superior automatic control element. Has been widely used in papermaking, printing, plastics, rubber, textiles, printing and dyeing, wire and cable, metallurgy, tablet presses and other related winding industry in the unwinding and winding tension control. It has the characteristics that the excitation current and the transmission torque are basically linear. It is able to transmit a certain torque regardless of the slip. It has the advantages of fast response, simple structure, no pollution, no noise, no shock vibration and energy saving.
The magnetic powder clutch has a linear relationship between excitation current and transmission torque. It is based on electromagnetic principles and uses magnetic powder to transmit torque. It is a versatile, superior automatic control element.
Magnetic powder clutch and magnetic powder brake are based on the principle of electromagnetic and use magnetic powder to convey torque, and the torque transmitted by it is basically linear with excitation current. Magnetic clutch can also be used to buffer start, overload protection, speed control and so on. Magnetic powder brakes are also often used for dynamometer loading and braking of transmission machinery.
Magnetic powder clutch and magnetic powder brake are both excellent performance automatic control components, with high linearity, high-precision torque control, high magnetic powder purity, no black carbon powder, stable performance and long life. Smooth operation, no vibration, no impact, no noise, small size and light weight in starting, running and braking conditions. Easy installation and long service life
Magnetic powder brake and magnetic powder clutch are closely related
Chests of drawers have traditionally been made and used for storing clothing , especially underwear , socks, and other items not normally hung in or otherwise stored in a closet . They are usually placed in a bedroom for this purpose, but can actually be used to store anything that will fit inside and can be placed anywhere in a house or another place. Various personal sundry items are also often stored in a chest of drawers. It has a long history as one of the stand-bys of a carpenter's workshop. A typical chest is approximately rectangular in overall shape and often has short legs at the bottom corners for placement on the floor.
Chests of drawers often come in 5-, 6-, and 7-drawer varieties, with either a single or a double top drawer. The chest illustrated at right would be described as a '5 over 2 chest-on-chest', the latter term deriving from the fact that at one time it would have been made as 2 separable pieces. They are commonly made of wood, similar to many other kinds of furniture, but of course can be made of other materials. The inside of the drawers can be accessed by pulling them out at the front side. It is often placed so that the back side faces a wall since access to the back is not necessary. The lateral sides are also usually made such that they can be placed against a wall or in a corner. Although they can be plain in appearance, chests of drawers can also be made with a fancy or ornamental appearance, including finishes and various external color tones. Traditionally, drawers would slide out on smooth wood rails. Most modern cabinets use roll-out shelf sliders, made of metal, with rollers.
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