Use for the automotive hydraulic brake system
Features: Brake pipe with high strength multi-strand polyester line, flexible, anti-burst, high tensile strength, low volume expansion. Brake Hose is resistant to ozone and corrosion.
Low temperature flexibility and high temperature compatibility, good performance, braking effect is stable and reliable.
(1) the size of the hose and the actual deviation. As the inner and outer diameter of the hose and the outer diameter of the skeleton layer will fluctuate, if the fluctuation range exceeds the allowable limit, the balance of the hose joint can not be guaranteed, and the quality of the hose assembly is difficult to guarantee. Therefore, the hose assembly used in the production of the hose, should be strictly checked inside diameter, skeleton layer outside diameter is in line with the requirements of the diameter deviation, the requirements can be properly relaxed.
(2) the deviation of the hose wall thickness. Due to the eccentricity of the inner layer of the air brake hose and the influence of the width of the intermediate web between the skeletal layers, the thickness of the hose may be too large. If the wall thickness deviation exceeds the allowable range, it will affect the subsequent sealing and anti-pull-off strength, and even cause the hose assembly joints partial skew (tilted head). Therefore, the deviation of the hose wall thickness should be strictly controlled, generally for the wall thickness deviation of more than 0.5mm hose should be carefully selected. The following are the same as the ”
(3) the adhesion between the layers of the hose. High-quality hose should have a good overall, that is, the structure between the layers should have a higher adhesion, the adhesive between the adhesive layer as a whole. So as to adapt to the joint assembly, withholding process in the process requirements, in order to ensure the performance requirements of the hose assembly. Therefore, it is necessary to control the adhesion between the layers of the hose can not be lower than the technical standards, and should try to choose high adhesion hose for hose production. The following are the same as the ”
(4) the appearance of the hose quality. Hose appearance quality can not be ignored, it not only affects the appearance of the hose assembly quality, but also affect the use of quality. Such as the outer layer of bubbles, pores or mechanical damage, will make the skeleton layer exposed, resulting in the skeleton layer of corrosion, reduce the hose pressure strength, a direct impact on the hose assembly life, and even in the use of accidents. Therefore, the appearance of the quality of the hose should pay attention to inspection, the appearance of defects affecting the performance of the hose assembly should be removed.