Knowledge about vacuum pump oil
Aluminum Ceiling material is a kind of decoration material that convenient to air circulation,exhaust and cooling.iIt is mainly used for household decoration.Also used for the airport,station,office buildings,shopping malls,subway stations and residential places. Aluminum Ceiling Bathroom Aluminium Ceiling,Aluminium Ceiling Tiles,Aluminium Ceiling Sheet,Aluminium Ceiling Board Henan Everwin Trade Co., Ltd. , http://www.ewaluminium.com
First, the role of vacuum pump oil :
1. Sealing: Prevent the atmosphere from entering the exhaust valve and have a gap seal between the moving parts (rotor and stator, rotary vane and rotor slot, etc.).
2 , lubrication: lubrication between the moving parts, reducing wear.
3. Cooling: The oil circulates between the pump and the fuel tank to dissipate heat and cool.
4. Carrying: Wrap dust or other particles generated by abrasion in the oil to reduce wear and tear.
5. Protection: Form a protective oil film to prevent water and chemical vapor condensation from corroding the components inside the pump.
Second, the performance requirements of vacuum pump oil :
1. At high temperature, the saturated vapor pressure should be low and the volatile components should be less.
2 , the lowest water content and water absorption.
3 , to have a certain viscosity, and with the temperature change is small (viscosity temperature rise curve is smooth).
4 , good lubrication performance, good resistance to cracking under mechanical stress.
5 , anti-corrosion, anti-oxidation, chemical properties are stable.
For the vacuum pump manufacturing plant, the selection of high quality oil, can improve the overall performance of the pump, bring benefits to the majority of users, resulting in a good social benefits. For the user , if the effect of the use of the factory oil is not very satisfactory , it can also be selected according to the specific situation. For example : 1 If it is cold in the day , it is difficult to start . You can choose a pump oil with a lower viscosity grade. 2 If the pump is working at a higher pump temperature for a long time , for example , if the pump has a heat source in the summer and the environment is poorly ventilated , the suction gas is heated or the inlet pressure is high, etc. , a high-quality oil of a viscosity grade may be selected or applicable. For high temperature, high load pump oil , such as HFV-A series oil. 3 If the pump temperature is high , and the pump pressure is not high , such as the double pump maximum pressure ≤ 5 Pa, the qualified oil with a viscosity of 100 or 150 , or the same or slightly higher viscosity mechanical oil, can be selected . Motor oil , mechanical oil prices are lower. ④ If the oil change period is short or very short, can meet the performance requirements, with a seat by higher viscosity or viscosity-defective oil or machine oil, compressor oil, in order to reduce the cost of oil change. The specific choice is determined by the user. 
The classification of aluminum ceiliing:
Aluminum veneer ceiling,aluminum honeycomb ceiling,standard board ceiling and punching ceiling and so on.
Three kinds of aluminum surface treatment technology
1. roller coating plate
2. spray plated (the Aluminum Sheet thickness is 1.5mm)
3. film faced plywood