High-pressure steel wire reinforced hydraulic hoses are composed of a steel wire winding skeleton layer and inner and outer oil-resistant and corrosion-resistant synthetic rubber. They are used to transport media such as hydraulic hoses for engineering machinery, offshore natural gas, oil, irrigation, steel mills, and chemical plants.
High-pressure steel wire reinforced hydraulic hoses need to withstand certain oil pressure and fatigue strength, and ensure the pipeline’s sealing requirements. Improper use will shorten the product’s service life and lead to damage to the high-pressure steel wire reinforced hydraulic hoses. What are the common causes of damage to high-pressure steel wire reinforced hydraulic hoses?
I. Overheating
When the machine is working, the hydraulic system will heat up due to power loss. In addition, the temperature under external conditions will rise directly and rapidly. The higher the temperature, the easier it is for the rubber to age, the worse its elasticity, and the lower its strength and sealing performance, causing the rubber hose to rupture quickly. Therefore, during operation, when the hydraulic system temperature rises too quickly, the problem should be checked in time and cooling measures should be taken.
II. Improper Rubber Selection and Installation
After replacing the high-pressure steel wire reinforced hydraulic hose, the selected hose length, number of steel wire layers, and the shape and size of the joints should conform to the equipment model specifications to minimize hose bending. When tightening the connector nut, avoid deforming the hose. Excessive bending and twisting will significantly reduce the hose’s lifespan.
III. Frequent and Severe Pressure Shocks
The rupture of high-pressure steel wire reinforced hydraulic hoses is caused by the intensity and frequency of pressure impacts. Therefore, during operation, the valve stem should not be pulled too violently; it must be done gently. Proper use can extend the lifespan of high-pressure steel wire and hydraulic hoses. In case of joint leakage or hose rupture during operation, it is also necessary to understand some emergency measures.