Hydraulic hoses are mainly composed of an inner layer of liquid-resistant synthetic rubber, a middle rubber layer, a multi-layer reinforcement layer and an outer layer of weather-resistant synthetic rubber. The inner rubber layer of the hydraulic hose has the function of allowing the conveying medium to withstand pressure and keeping the steel wire or steel wire fiber from corrosion; the outer rubber layer prevents the reinforcement layer from being damaged; the reinforcement layer is a skeleton material; its effect is to ensure the pressure exerted by the rubber pipe.
Hydraulic hoses are mainly used for mining hydraulic supports and oil field development. It is suitable for mechanical and automatic hydraulic systems in engineering construction, hoisting and transportation, metallurgical forging, mining equipment, ships, injection molding machinery, agricultural machinery, various machine tools, and various industrial sectors. It is used to transport petroleum base and water with a certain pressure and temperature. Base liquids and liquid delivery.
So how do we choose the appropriate super wear-resistant hydraulic hose?
- It is necessary to understand the demand for the product, and then determine the main indicators of the super wear-resistant hydraulic hose according to the demand.
For example: working pressure, inner diameter of hydraulic hose, outer diameter of hydraulic hose, medium transported by hydraulic hose, usage environment, service life, length size, bending radius, etc., determine the various technical indicators of the required hydraulic hose. The following explains how to choose from these 8 aspects:
- Work pressure: This depends on the work pressure and whether it can meet the requirements. Don’t be too demanding when choosing, just be enough.
- The inner diameter of the hydraulic hose: ensure that the medium transmitted in the hydraulic hose can be transmitted smoothly without clogging. It should be selected according to the diameter of the product used and cannot be too large or too small;
- The outer diameter of the hydraulic hose: Select according to the diameter of the product used. It cannot be too large or too small to ensure normal assembly without leakage;
- Transmission medium: This is very important. You must pay attention to the corresponding hydraulic hose when selecting. For example, if the transmission medium is hydraulic oil, you must choose one that is resistant to hydraulic oil;
- Usage environment: Select the hose according to the usage environment, including whether the environment is harsh, whether it is in the open air, lighting time, whether there is frequent friction, external temperature, etc.;
- Service life: According to the requirements of the product, choose the appropriate service life, and consider the difficulty and cost of replacing the hydraulic hose when its life is over;
- Length size: According to the size of the product and the specific conditions of use, select the appropriate length size, try to make it just right, and do not let it bend excessively or be in a state of strong tension;
- Bending radius: Because hydraulic hoses have bending radius requirements when used, it is necessary to consider the specific location of the product where the hydraulic hose is used to determine the appropriate bending radius, so that the normal use environment of the hydraulic hose does not exceed the bending radius.
- Characteristics of hydraulic hoses used in the construction machinery industry
- The narrow space results in a small bending radius of the pipelines, which easily rub against each other and cause damage to the hoses;
- The working pressure is high and the pipeline has a certain impact load;
- There are many dynamic uses, and the pipeline needs to undergo frequent bending movements;
- System vibration may easily cause early damage to the hose;
- The temperature of the conveying medium is high and the environment is harsh;
- The system pressure changes frequently and requires high pulse performance.