Brake fluid and preparation method thereof

Abstract

The invention relates to a brake fluid. The brake fluid comprises, by mass, 40-50% of deionized water, 38-55% of an antifreeze agent, 0.5-1.5% of a stabilizer, 1.5-3% of an antioxidant, 1-4% of an antiseptic and 2-3.5% of a passivating agent. The brake fluid has effectively-reduced temperature rising, has weakened electrochemical corrosion, and effectively meets strict requirements of large energy level brakes of the performances of the brake fluid. The invention also relates to a preparation method of the brake fluid.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a brake fluid and a preparation method thereof. Background technique [0002] Brake fluid is the working medium for transmitting pressure in hydraulic transmission, and its performance is directly related to the level of braking performance. At present, brake fluid is mostly automobile brake fluid, which is mainly divided into castor oil-alcohol type, synthetic type, There are three types of mineral oil type, the components of which are all organic solutions, which are made by stirring, dissolving, reacting and filtering each organic solution under the specified pressure, temperature and time conditions, because the specific heat capacity of the organic solution is generally 1.7 to 2.5 kJ / (kg K), when the braking energy is large, the temperature rise of the brake fluid will be large, which will seriously reduce the service life of the seal, and the temperature of the brake fluid ...

AI Technical Summary

Problems solved by technology

[0002] Brake fluid is the working medium for transmitting pressure in hydraulic transmission, and its performance is directly related to the level of braking performance. At present, brake fluid is mostly automobile brake fluid, which is mainly divided into castor oil-alcohol type, synthetic type, There are three types of mineral oil type, the components of which are all organic solutions, which are made by stirring, dissolving, reacting and filtering each organic solution under the specified pressure, temperature and time conditions, because the specific heat capacity of the organic solution is generally 1.7 to 2.5 kJ / (kg K), when the braking energy is large, the temperature rise of the brake fluid will be large, which will seriously reduce the service life of the seals, and the temperature of the brake fluid will exceed the allowable working temperature under severe working conditions

And if water with a higher specific heat capacity is added to the existing automobile brake fluid, it will aggravate the corrosion problem of the metal

The braking energy of the liquid eddy current brake is huge, and the extreme working condition can reach the level of megajoules. The existing automobile brake fluid can no longer meet the requirements of large energy level braking.