盘式制动器外文翻译.docxVIP

附 录 1 Disk Brake Disk brakes, like many automotive innovations, were originally developed for auto racing, but are now standard equipment on virtually every car made. On most cars, the front brakes are of the disc type, and the rear brakes are of the drumtype. Drum brakes use two semi-circular shoes to press outward against the inner surfaces of a steel drum.Older cars often had drum brakes on all four wheels, and many new have 4-wheel disc brakes. Though disc brakes rely on the same basic principles to slow a vehicle (friction and heat), their design is far superior to that of drum brakes. Because disc brakes can fling off water more easily than drum brakes, they work much better in wet conditions. This is not to say that water does not affect them, it definitely does. If you splash through a puddle and then try to apply the brakes, your brakes may not work at all for a few seconds! Disc brakes also allow better airflow cooling, which also increases their effectiveness. Some high performance disc brakes have drilled or slotted holes through the face of the rotor, which helps to prevent the pads fromglazing (becoming hardened due to heat). Disc brakes were introduced as standard equipment on most cars in the early seventies. The main components of a disk brake (Figure) are the Brake Pads, Rotor (Disc), Caliper and Caliper Support. DISK BRAKE Brake Pads (Disc Brakes) 1)Brake Pads There are two brake nads on each caliper.They are constructed of a metal.shoe with the lining riveted or bonded to it. The pads are mounted in the caliBerosnrqr its heat absorbing properties and quiet operation; however, due to health risks, asbestos has been outlawed, so new being used. Brake pads wear out with use and must use and must be replaced periodically. There are many types and qualities of pads available. The differences have to do with brake life (how long the new pads will last) and noise (how quiet they are when you step on the brake). Harder lining