How to distinguish if a PVC hose is good or not
Industrial hose assembly is made of hose body and connecting joints. It is used to transport fluid with certain pressure and flow. And connect separate oil circuit units to make it a control system that completes a certain control function. It has special flexibility. Therefore, it is easy to install and connect. And it can absorb shock and reduce pipeline vibration. It is an important pipeline component in fluid transmission and control system. Therefore, it is widely used in food processing equipment, pharmaceutical engineering, chemical machinery and other fields.
However, due to the aging of rubber itself, the strength of steel wire and the limitation of buckling structure process, it is easy to break, age and leak in actual use. Among them, oil leakage at the buckling of hose joint is the most important failure form of hose assembly. During use, there have even been serious safety accidents caused by pulling out or breaking at the buckling of hose assembly, resulting in casualties. It can be seen that it is very important to improve the buckling performance of hose assembly and improve the buckling reliability. The main reasons for oil leakage or even pulling out or breaking at the buckling of hose joint are too large or too small buckling size, unreasonable buckling structure, improper buckling operation, twisted installation, too small bending radius, etc.
The main reasons for the failure of the hose assembly itself are:
(1) unreasonable crimping structure;
(2) the crimping size is too large or too small;
(3) there are defects such as burrs and sharp angles at the crimping joint;
(4) improper crimping operation;
(5) crimping equipment problems.
Therefore, how to adopt a reasonable crimping structure and crimping size, as well as the correct crimping process is the key to reducing crimping failures.
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