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建立时间:2008年9月5日 |
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 Disc Brake
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xinxin1986 发表于 2009/2/6 14:05:01 |
| Modern car brake drum and disc two main types, their own unique styles, but with the continuous improvement of speed cars, in recent years the use of disc brake cars increasing, press machine especially in high-class cars are generally used disc brake . Automobile brake Simply put, is to use friction to convert kinetic energy into thermal energy, so that the loss of kinetic energy while the car stopped. Therefore, the cooling of the braking system is very important. If the braking system are often high-temperature state, shearing machine it will impede the energy conversion process, resulting in decreased braking performance. The more go-fast car, brake up heat generated by the greater impact on the braking performance is also greater. Solve heat dissipation problems, to improve the car's braking performance also played a productive role. Therefore, in addition to modern cars use aluminum alloy wheels Rim to reduce operating temperature, but also tend to use better cooling performance disc replica handbags brake. Of course, the disc brake also has its own flaws. For example, brakes and brake pipe manufacturing requested a higher amount of friction plate wear and tear of the larger costs are high, and because the small size of the friction plate, the relative friction of the face are also smaller, the need for hydraulic brake high must have the power devices in order to use the vehicle. The drum brake relatively cheap, more economical. Therefore, the automotive designers from the economic and practical point of view, generally adopted a hybrid sedan form, the front wheel disc brake, rear drum brake. Paper Cup Machine Four-wheel car in the braking process, due to the role of inertia, the load is usually front-wheel motor vehicles accounted for 70 percent of all load -80%, so the front wheel braking force than the rear large. Car manufacturers in order to save costs, the Note counter introduction of front disc brake, rear drum brake way. Four-wheel disc brakes and high-class cars, the use of front-wheel ventilated disc brakes in order to better heat dissipation, as regards the use of non-ventilated rear disc also cost reasons. Ventilated disc, after all, the manufacturing process much more complex, the price is relatively expensive. With the development of coin counter materials science and cost reduction, in the automotive field, are gradually replacing disc brake drum brake |
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