How To Solve The Problem Of Cracks On The Appearance Of Hydraulic Hoses?

Generally, if the hydraulic hose is used for a long time or improperly stored, some damage will occur, such as: oil leakage, surface rise, surface cracking, etc. Below we analyze in detail the different situations, and what kind of coping strategies we need to make. The Industrial Hose Manufacturer will tell you next.

Steel wire sandwich type hydraulic hose mainly includes: steel wire wound hydraulic hose, steel wire braided hydraulic hose and steel wire frame hydraulic hose. Whether it is SAE Hydraulic Rubber Hose or GB hydraulic hose, it can be subdivided. The inner and outer rubber layers of the hose are made of synthetic rubber with excellent heat resistance, which has the characteristics of softness, lightness, good flexibility, high heat resistance and high safety performance. The hydraulic rubber hose is composed of an inner rubber layer, a reinforcement layer and an outer rubber layer. The inner rubber layer is in direct contact with the oil, so it is required that it should not be corroded by fluids and can prevent leakage under long-term working conditions. It can withstand the pressure under the action of the reinforcement layer. Hydraulic hoses rely mainly on reinforcement layers to withstand pressure.

SAE Hydraulic Rubber Hose

The braided rubber hose is fastened by the glue and the inner and outer rubber layers. Due to the mutual contact between the steel wires in the same braided layer, when they are subjected to dynamic pressure, they will cause friction between the steel wires due to different expansion and contraction, which will affect their durability. The winding pipe is composed of two layers with different winding directions, and there is an intermediate glue between the two layers, so there is no intersection between the two steel wires of the same working layer. Therefore, it will not cause the same stress concentration or friction and abrasion as the cross bending between steel wires when subjected to dynamic pressure. Therefore, it has good durability and can withstand high pressure.

In the relatively cold winter environment, cracks on the outer surface of the hydraulic hose can cause the hydraulic hose to distort. If cracks are found on the outer surface of the hydraulic hose, pay attention to whether the hydraulic hose is cracked and decide whether to replace the hydraulic hose immediately. Because the carrying capacity of the hose depends on the steel wire reinforcement layer, which is the skeleton of the hose, it is usually braided and surrounded by steel wire. High and ultra high pressure are mostly woven from multiple layers of steel wire and surround the frame. Low pressure hoses are woven from cotton and linen instead of steel wire. They are generally used in low pressure oil return pipelines. Temperature has a great effect on hydraulic hoses.

Therefore, do not arbitrarily move the hose or disassemble and repair the hydraulic system in a cold environment to ensure the safety of the hydraulic hose. If necessary, it should be performed indoors. If you need to work for a long time in a cold environment, replace the anti-icing hose.

Cracks on the appearance of Hydraulic Rubber Hose: In cold environments, cracks on the appearance of hydraulic hoses can cause the hose to bend. If a crack is found on the outside of the hose, pay attention to whether the rubber inside the hose is cracked and decide whether to replace the hose immediately. Therefore, in cold environments, do not move the hose or dismantle the hydraulic system at will, and perform it indoors if necessary. If you need to work in a colder environment for a long time, you should replace the cold-resistant hose.

Finally, regardless of whether the outer rubber layer of the hydraulic hose is damaged or whether the inner and outer surfaces are defective, we need to handle it carefully to avoid small problems that cause big trouble. If the hose has reached the end of its useful life, we need to replace it in a timely manner. Don't regret it, and don't bury safety hazards in order to save money, endangering our personal safety.