plastic car handle part

The plastic car handle part named damper. We can use it in the car handle for get the soft clsoing function of the car handle.

the demension of the plastic car handle part damper as follows:

model	shell material	inside material	resistance/torque
LF-28A	ABS	POM	150-600gf.cm
LF-28B	ABS	POM	150-600gf.cm

 

Basic Principles

The torque made by the damping oil to the rotating parts cohesion effect is the resistance. The value of the resistance is decided by the viscosity and contact area is bigger, the resistance is bigger, and vice versa.

 

Temperature Characteristics

Resistance of the damper varies according to the ambient temperature.Since the temperature effects the sealing damping oil fluidity.If the temperature is higher, the fluidity is higher, and the resistance is lower, and vice versa.The suitable temperature range is -20°C—80°C.

 

 

Speed Characteristics

Under common condition,the resistance made by the oil to the rotating parts cohesion effect will be higher if the rotating speed is higher, and vice versa.

 

 

Resistance and Testing

In the production testing under normal 27.5°C,put the products on the axis rotating in a speed of 36r/min. And the resistance in the 3rd rotate is looked as the standard one.