Quality control of joint metal parts
The quality of the joint core tube, the jacket and the connecting seal must be strictly inspected before the joint is assembled. In addition to the size, tolerance and machining accuracy of the inspection project should meet the requirements of the joint drawings, it is necessary to check the interchangeability of the joint and whether the rubber hose used matches, and it is also important to check the surface finish of the core tube and the smoothness of the sharp edges and corners. If the joint metal parts are found to have sharp corners or burrs, they must be carefully trimmed before use, otherwise they will seriously affect the performance and life of the hose assembly.
Due to the potential defects of the steel used for processing, the joint metal parts are not easy to be found by the naked eye. Radial fracture or axial crack will occur during the assembly and compression of the joint or in the hydraulic test. Therefore, the joint metal parts of the same batch should be strictly inspected one by one to eliminate potential hidden dangers.
Pipe joints are generally divided into: flared pipe joints, welded pipe joints, ferrule type pipe joints, buckled pipe joints, detachable pipe joints, telescopic pipe joints and quick pipe joints.
for the delivery of saturated steam or superheated water of 165 ° C ~ 220 ° C, suitable for steam cleaners, steam hammers, flat vulcanizing machines and injection molding machines and other hot pressing equipment for soft pipelines.
Due to the complex variety and various structures of hydraulic hoses, and the different conditions of use, the service life of hydraulic hoses is not only determined by the quality, but also determined to be properly used.