42KW 200 Ton Silicone Cookingware Hot Press Machine

200 Ton Silicone Cookingware Hot Press Machine

Hydraulic Oil Leak Reasons:

The movement of the four-column press is mainly realized by the circulation of hydraulic oil, and when we are in normal use, the machine often leaks oil, which brings great trouble to our work. For the oil leakage of the press, the main points are as follows:

1. The seal is damaged. The presses we use basically connect the machine body and the hydraulic system into a loop through oil pipes, and seals will be installed at each connection port of the machine to ensure that the oil pipes do not leak oil, due to long-term use , The seal is damaged by the impact and corrosion of hydraulic oil, which leads to oil leakage in the oil circuit.
2. The valve body leaks oil. The solenoid valve is the heart of the four-column press. It mainly depends on different solenoid valves to achieve diversification of actions. If the seals in the solenoid valve are installed improperly, the seals will be damaged and the valve body will leak oil. Happening.
3. Connect the pipeline. The connecting pipes between the hydraulic systems are all welded, and the occurrence of trachoma during welding will lead to oil leakage in the pipeline later.

The above is the oil leakage of the main four-column press. The specific situation is analyzed in detail. If it can not be solved, it is best to contact the manufacturer for repair.

Sealing Techniques Analysis Of Hydraulic Presser:

1. After the pressure holding process of the hydraulic machine is over, the main cylinder is in the return state, but because the hydraulic machine oil pressure is as high as 350Mpa, and the main cylinder has a large bore and long stroke, the liquid in the cylinder is compressed during the pressurization process and stores considerable energy. If the main cylinder communicates with the oil return immediately, the elastic energy stored in the fluid in the system is suddenly released, and a very high pressure value is stroked in the pipeline, which is several times higher than the normal pressure, which can easily cause system vibration, noise and connection Phenomena such as loose parts, and even rupture the pipeline and damage the hydraulic components, affect the performance stability and working reliability of the hydraulic system, and shorten its service life.
2. When the pressure of the master cylinder is relieved, WV56 is not to be powered off quickly. When the WV56 is energized, the value of PDB56 is gradually reduced, and the pressure of the master cylinder is slowly relieved to 0, and then the relevant valves of the return stroke are allowed to work. Therefore, after the pressure is maintained, the pressure must be relieved before returning. Check the external dimensions of the seal. Many will buy according to used old samples. To determine the direction of movement of the seal, the hydraulic press is reciprocating and rotating. Determine whether the flow point is the piston rod seal on the inner diameter or the piston seal on the outer diameter.
3. The hydraulic press evaluates the working temperature according to the actual situation or finds it out from the original use imitation order to determine the required sealing material. Finding out from the original imitation sheet or inferring by observing the hardness and structure of the original seal is important for selecting seals for maintenance. The seals of hydraulic presses will be damaged in use, and the seals are often caused by sliding with the metal surface. Friction wears the seals. Factors such as excessive surface roughness of the FRP biogas digester hydraulic machine, too tight installation, and other factors accelerate the liquefaction phenomenon of the worn hydraulic machine seal under high pressure and enter the gap of the sealing surface. The relative movement between the sealing element and the sealing groove will promote this process. The squeezing of the gap causes the sealing element to be completely damaged, the surface is torn or broken, and plastic deformation may occur. Adding a sealing ring can avoid extrusion. There are many reasons for the wear of hydraulic machine seals. If you want to make the seals use for a long time and perform well.
4. Pay great attention to maintenance during use and frequent maintenance. The main purpose is to avoid the rapid change of the liquid flow rate and prevent the high pressure oil enclosed in the main cylinder from quickly entering the oil return pipeline during the oil return and pressure relief process. Therefore, we make full use of the role of the proportional overflow valve in the original design. In practice, we set the value of PDB56 to decrease from the maximum value to 0 within 0.5 seconds. The pressure relief process of the master cylinder is stable, and the vibration and noise of the system are obtained. Greatly eased and the stability of the system is guaranteed.

Plate Vulcanizing Machine Parameters:

 
Reference Machine Images: