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EspañolA shock absorber piston is a device that allows the hydraulic fluid to move freely through the cylinder and the rod. It is often used in automotive suspensions, but it is also found in kitchen furniture and wardrobes. The rod is usually coated with PTFE, which helps reduce friction.
In addition to providing the necessary resistance to friction, a piston rod is also required to filter noise, dampen vibrations, and maintain the distance between the wheel and the vehicle body. It is made up of a steel core and a sand-blasted surface. To keep the sand-blasted surface in good shape, a protective coating of PTFE is applied. Besides maintaining the exterior appearance, the coating protects the piston from corrosion.
When a piston rod is manufactured, its manufacturing process involves several stages. Some of the stages include rough machining, heat treatment, and chroming. Before the piston is ready for assembly, the material must pass 100% pass-through gauging and meet Form-Fit and Functional requirements. After completing these steps, the permanently bonded piston is ready for packaging.
A piston rod for hydraulic shock absorbers is characterised by a uniform thickness between 20 and 60 microns. This thickness ensures wear resistance, minimizes friction, and enhances the performance of the shock absorber. These features can be achieved through a combination of ceramic particles, polytetrafluorethylene (PTFE), and pigment.
A piston with a chamfered surface creates a small "valve" effect, which allows oil to flow more rapidly toward holes when the piston is rebounding. However, a chamfered piston can be too harsh on the wheel, so the surface is resurfaced. Another advantage of a chamfered piston is that it will make the wheel more stable.
The majority of shock absorbers on the market today use fluid friction. When the piston and rod guide are frictionally joined, friction forces are reduced. By reducing the contact surfaces, weight transfer and lubrication can be controlled more effectively. Also, this design helps reduce the risk of leaks.
Shock absorber piston rods are designed to be durable and wear-resistant. The material that is used is usually Delrin, but other brands can be smaller in size and diameter. They also provide soft closing of hinged doors and can prevent slams. If the piston is used on a hard surface, it will need a coat of matte nickel.
Shock absorber piston is a device that absorbs impact when a vehicle collides with an object, and is used to disperse vehicle collision energy. The piston usually consists of two parts - the inner cylinder and the outer cylinder. The inner cylinder contains damping oil, and the outer cylinder contains nitrogen or excessive oil. The two parts are connected by a valve. The valve controls the damping force and allows the piston to work at different speeds under different conditions. The speed of the piston in the shock absorber plays an important role in its function. They shall operate at a speed of 1/4 to 2 feet per second. The piston must work properly within these limits, otherwise there is a risk of bottoming. If the piston touches the bottom, the shock absorber may fail. The piston of powder metallurgy shock absorber has high precision and high strength performance, which can be coated on the surface to make it decorative, corrosion resistant, wear-resistant and long life.
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