Requirements for brake fluid of electric forklift
时间：2022-01-07 17:13 点击次数：
Requirements for brake fluid of electric forklift
a. Low temperature action: if the brake fluid has poor fluidity and shrinkage at low temperature,
it will block the pipeline and pump. When braking, it will feel that the brake pedal is very hard and cannot be braked if it cannot be pressed.
Generally, the brake fluid shall not condense at - 40 ℃ and can flow freely.
b. Proper viscosity: if the viscosity is too high, the low-temperature fluidity becomes poor and the braking function decreases;
The viscosity is too small to reliably provide smooth and simple movement.
In order to ensure good slip between brake fluid and rubber cylinder, appropriate brake fluid viscosity is required.
c. High boiling point: in each working cycle, frequent forward and backward,
and the brake friction plate is in the braking state for a long time, which increases the temperature of the braking system.
If the brake fluid with low boiling point and easy to evaporate is used, the pipeline of the braking system will be filled with brake fluid steam,
resulting in air resistance and braking failure. Therefore, in order to reduce the air resistance,
the brake fluid must have high boiling point and low evaporation, so as to reduce the air resistance.
d. Good corrosion resistance: in order to ensure that the brake fluid will not corrode metal pipes and components after long-term use,
anti rust agent shall be added to the brake fluid.
e. Chemical stability: when the brake fluid is used at high temperature for a long time,
it is required that the oil will not become sticky due to thermal differentiation and coincidence, and there will be no oil sludge deposition.
f. Small impact on rubber: there are a large number of rubber seals in the braking system.
In order not to reduce the mechanical strength and elasticity of rubber seals such as brake cups,
it is required that the brake fluid has a small impact on the expansion rate of rubber, so as to prevent the cups from being immersed in the brake fluid for a long time,
resulting in changes in strength, volume and quality.
