Pollution control and purification of hydraulic oil for 3 roller plate bending machine

1、Pollution control of hydraulic oil in 3 roll plate bending machine

The working life and reliability of hydraulic components are mainly determined by the pollution tolerance of components and the pollution degree of hydraulic oil of three roll bending machine. In order to ensure the service life and reliability of components, the pollution control measures can be taken to achieve a reasonable balance between the pollution degree of hydraulic oil and the pollution tolerance degree of key hydraulic components, which is the basic content and purpose of pollution control.
There are two ways to improve the working life and reliability of components: one is to develop pollution resistant components to improve the pollution resistance of components by improving the design parameters, structure and material of components; The second is to take pollution control measures to reduce the degree of pollution of hydraulic oil in three roll bending machine. Experience shows that the latter is a more economical and effective way.

In order to effectively control the pollution of the hydraulic system, the following measures are mainly taken: 1) cleaning the components and system, removing the residual pollutants in the process of processing and assembly. 2) Take measures to prevent pollutants from invading the system and control pollutants from outside. 3) High efficiency oil filter is used in the hydraulic system to continuously filter out the pollutants generated inside and intruded from outside.

2、 Purification of hydraulic oil for 3 roll plate bending machine

Prolonging the service life of the hydraulic oil of the three roll bending machine can not only save the cost of replacing the hydraulic oil of the three roll bending machine, but also save the oil resources. At present, due to the imperfect pollution control measures in some industrial sites, the hydraulic oil of the three roll plate bending machine in the hydraulic system is seriously polluted, which affects the normal operation of the equipment. Therefore, the method of frequently changing the oil has to be adopted. In fact, the dirty oil replaced is only polluted beyond the limit, and the physical and chemical properties do not reach the degree of deterioration. This kind of hydraulic oil can still be used after proper treatment. The experience shows that improving the cleanliness of hydraulic oil of three roll plate rolling machine through pollution control can significantly delay the deterioration of hydraulic oil performance of three roll plate rolling machine, and the service life of hydraulic oil of three roll plate rolling machine can be extended by 3-5 times. The Japanese industry has put forward that the service life of the hydraulic oil of the three roll bending machine can be extended to 10 years through the purification measures of the hydraulic oil.

Purification method	Principle	Application
filter	The use of porous media to filter out insoluble substances in oil	Separation of solid particles
centrifugal	The fluid can be moved in a circular way by mechanical means of separating insoluble substances with different density by using the radial acceleration generated	Separation of solid particles and free water (centrifuge)
inertia	The oil can move in a circle by hydraulic pressure, and the insoluble substances with different density can be separated by radial acceleration	Separation of solids and free water (cyclone)
magnetic	Using magnetic force to absorb ferromagnetic particles in oil	Separation of ferromagnetic particles and debris
static electricity	The insoluble pollutants in insulating oil are adsorbed on the dust collector in electrostatic field by electrostatic field force	Separation of solid particles and colloidal substances
vacuum	Use the difference of saturated vapor pressure under negative pressure to separate other liquids and gases from oil	Separate free and dissolved water, air and other volatile substances
Coalescence	Based on the difference of wettability (or affinity) of liquid to a porous medium, the mixture of two insoluble liquids is separated	Separation of free water and emulsified water from oil
adsorbent	Separation of soluble and insoluble substances in oil by molecular adhesion	Separation of solid particles, various states of water, colloidal substances