山东CHASSIS

With the development of China's automobile industry and the improvement of energy conservation and emission reduction requirements, more and more metal parts will be produced by powder metallurgy technology. With the continuous help of foreign funded powder metallurgy companies to achieve the localization of powder metallurgy in joint-venture vehicle plants, the scope of domestic independent brand whole vehicle plants using powder metallurgy will be increasingly expanded, thus promoting a greater growth in demand for powder metallurgy, Therefore, the demand for the application of domestic powder metallurgy auto parts will be greater than the growth rate of the whole vehicle market, but this requires domestic powder metallurgy companies to constantly strengthen technical management and invest in personnel training, so as to achieve more favorable competition between domestic powder metallurgy technology and foreign countries. The shock absorber parts, guide, piston and bottom valve seat in the chassis, including piston, guide and valve seat, These parts have been produced and applied since the late 1950s.

Power steering system function

The power steering system has been widely used in automobile manufacturing in various countries due to its flexible and light steering operation, increased flexibility in the selection of steering gear structure when designing automobiles, and its ability to absorb the impact of road surface on front wheels. If the power steering system with fixed magnification is designed to reduce the force of turning the steering wheel when the car is parked or running at low speed, when the car is running at high speed, the power steering system with fixed magnification will make the force of turning the steering wheel appear too small, which is not conducive to the direction control of the car running at high speed.

The power steering system is a device that uses the power of the engine to help the driver conduct steering control. It converts the energy of the engine into hydraulic energy (electric energy or pneumatic energy), and then converts the hydraulic energy (electric energy or pneumatic energy) into mechanical energy to act on the steering wheel to help the driver conduct steering. Therefore, it is called the power assisted steering system. It is mainly installed on the vehicle to reduce the steering force exerted on the steering wheel by the driver. The power steering system has been applied to automobiles since the 1930s. At that time, it was mainly installed on heavy vehicles, and the power sources used included air pressure and hydraulic pressure. So far, pneumatic power steering has been eliminated. Hydraulic power steering is widely used, and electric power steering is just being popularized. At present, power steering system is not only used in heavy vehicles abroad, but also widely used in light vehicles and cars. Since the 1950s, various auto industries have been competing to develop power steering devices after their development.

Function of shock absorber

In order to accelerate the attenuation of frame and body vibration and improve the ride comfort (comfort) of cars, shock absorbers are installed inside the suspension systems of most cars.

The damping system of a car is composed of springs and shock absorbers. The shock absorber is not used to support the weight of the vehicle body, but to restrain the shock when the spring rebounds after shock absorption and absorb the energy of road impact. The spring plays a role in mitigating the impact, changing "one impact with large energy" into "multiple impacts with small energy", while the shock absorber gradually reduces "multiple impacts with small energy". If you drive a car with a broken shock absorber, you can experience the bouncing of the car after passing through every pothole and undulation, and the shock absorber is used to restrain this bouncing. Without the shock absorber, it is impossible to control the spring rebound. When the car encounters a rough road surface, it will have a serious bounce. When cornering, it will also cause the loss of tire grip and tracking ability due to the up and down vibration of the spring.

The shock absorber is used to restrain the shock and impact from the road surface when the spring rebounds after shock absorption. Powder metallurgy technology is adopted in manufacturing. At the same time, the shock absorber produced by powder metallurgy technology aims to accelerate the attenuation of frame and body vibration, so as to improve the driving smoothness of the car. When passing uneven roads, although the shock absorption spring can filter the vibration of the road, the spring itself will have reciprocating motion, and the shock absorber is used to restrain the spring jumping.