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在工程机械上使用的制动器一般多采用钳盘式制动器。在钳盘式制动器的制动故障中因制动液引发的问题相当多,如制动不复位、制动失效等。现就选择和使用制动液时应注意的事项谈以下几点: 一、制动液的种类和选择 制动液按其原料、工艺的不同,可分为醇型(植物性)制动液和合成型制动液。 1.醇型制动液是50％蓖麻油与50％乙醇的混合液。外观上看为浅绿色或浅黄色透明液体,有酒精气味。醇型制动液的低温粘度较大,因此在我国东北、西北等较严寒地区一般不宜选用。另外,醇型制动液的平衡回流沸点较低,在高温条件下,热稳定性差,极易产生大量挥发和气阻现象,引起制动失效。由此,在南方炎热的夏
Brakes used in construction machinery generally use more caliper disc brakes. In the brake disc brake caliper failure caused by brake fluid quite a lot of problems, such as the brake is not reset, brake failure and so on. Now on the choice and use of brake fluid should pay attention to the following items: First, the type of brake fluid and brake fluid according to their raw materials, technology can be divided into alcohol type (plant) brake fluid And synthetic brake fluid. 1. Alcohol type brake fluid is a mixture of 50% castor oil and 50% ethanol. Appearance is light green or light yellow transparent liquid, alcohol smell. Alcohol-based brake fluid viscosity at low temperature, so in Northeast China, Northwest and other areas generally should not be cold selection. In addition, alcohol type brake fluid balance reflux boiling point is low, under high temperature conditions, poor thermal stability, easy to produce a large number of volatilization and gas resistance, causing brake failure. As a result, hot summer in the south