On the basis of high quality carbon structural steel, the hydraulic support tube is appropriately added with one or more concentrated alloying elements to improve the toughness and strength of the steel. This kind of steel has good comprehensive mechanical properties compared with high quality carbon structure steel.
Advantages of hydraulic support tube:
1. Overload protection can be realized automatically.
2. It's very easy to move in a straight line.
3. Small volume, light weight, small motion inertia and fast reaction speed.
4. Generally, mineral oil is used as the working medium, which can be lubricated by itself relative to the moving surface, thus extending the service life.
5. The components of hydraulic transmission can be arranged flexibly and conveniently according to the needs.
6. Easy to control, can achieve a wide range of stepless speed regulation.
7. It is very easy to realize the automation of the machine. When combined electro-hydraulic control is adopted, not only can a higher degree of automatic control process be realized, but also remote control can be realized.
Disadvantages of hydraulic prop tube:
1. The manufacturing accuracy of hydraulic components is very high, so the price is relatively expensive.
2. Hydraulic transmission in the fault, it is very difficult to find the cause, maintenance and use requirements have a high level of technology.
3. As the working performance is easily affected by the temperature, it is not suitable for working under very low temperature or very high conditions.
4. Due to the leakage of liquid mechanism and the influence of compressibility, it is impossible to obtain a strict transmission ratio.
5. Due to the large fluid flow resistance and leakage, the efficiency is relatively low. If the treatment is not appropriate, the leakage will not only pollute the site, but also may cause explosions and fire accidents.
