1、 What is vacuum pump oil?

Vacuum pump oil is a kind of lubricating oil specially developed for vacuum pump of vacuum equipment, which can be divided into mineral oil and synthetic oil.

Vacuum pump oil needs strong anti emulsification ability, and appropriate performance and viscosity grade vacuum pump oil should be selected according to the regulations of equipment manufacturer.

Vacuum pump oil has oxidation stability; it is not easy to deteriorate when it is in direct contact with air, resin and chemical raw materials under high temperature for a long time, which can reduce the formation of harmful paint film and oil dirt and provide a long oil change cycle. It can form a very effective anti-corrosion film on the metal surface, so as to prevent the system corrosion caused by inhaling corrosive gas and water. It can quickly separate the water carried in the oil and reach the required vacuum degree.

2、 What is engine oil?

Engine oil is the engine oil, known as the "blood" of the car, can play the role of lubrication, cleaning, cooling, reducing wear, rust, anti-corrosion and so on. The engine is the heart of the car. The engine people have many metal surfaces that rub against each other. These parts move fast and the environment is poor. The working temperature can reach 400 ℃ to 600 ℃. Under such harsh working conditions, only qualified lubricating oil can reduce the wear of engine parts and prolong the service life. Engine oil is composed of base oil and additive. Base oil is the main component of lubricating oil, which determines the basic properties of lubricating oil. Additives can make up for and improve the performance of base oil and give some new properties. It is an important part of lubricating oil.

Lube base oil is mainly divided into mineral base oil and synthetic base oil. Mineral base oil is widely used, with a large amount, more than 95%, but some applications must use the products formulated with synthetic base oil.

3、 Matters needing attention in using vacuum pump oil

1. In order to ensure the normal operation of the vacuum system, pollution should be prevented in the process of use, storage and transportation. Such as mechanical impurities and water into, so as not to affect the service life of vacuum oil and the normal operation of the system.

2. Residual oil often contains a lot of pollution and aging products, which will seriously affect the service quality and service life of new oil. Therefore, the oil tank and oil circuit should be cleaned when changing oil. Pour the new oil into the suction port of the pump, transfer the pump shaft slowly by hand, clean the pump chamber and drain the residual oil, and clean it several times.

3. Different brands and varieties of vacuum pump oil have different quality. If mixed, the quality of vacuum pump oil may change. Therefore, different types of vacuum pump oil can not be mixed.

4. When used in solvent, water vapor and corrosive gas, check frequently after use. When the oil emulsion or dilute to affect the sealing performance of the pump, the oil should be changed.

5. When the vacuum pump is in use, it is easy to form condensate water in the vacuum pump. When water and oil are mixed together, it is easy to emulsify and deteriorate the oil and damage the vacuum pump.

4、 How to distinguish true and false engine oil?

1. Look at the packaging appearance

The famous brand oil seal cover is a disposable cover. There is sealing tin paper at the gap. There are special marks of the manufacturer on the tin paper. Without these characteristics, it may be fake oil. In addition, in order to prevent counterfeiting, the label sticker, the bottom of the can, the inner side of the lid and the handle are all marked with special marks. If there is a counterfeit package made by illegal elements, it can be distinguished by comparing the two outer packages.

2. Observe oil products

The true oil color is light and transparent, no impurities, no suspended solids, no sediment, good fluidity when shaking. Fake oil or oil color is deep, or there are impurities and precipitates, or the taste is strong and irritating. The fluidity is poor when shaking, or there is wire drawing by hand.

There are generally three types of counterfeit oil products

1) The recycled waste oil is filled and marketed after being treated.

2) Use pure base oil mixture without any additives.

3) Buy low-grade oil filling, fill with inferior. Generally, the color of the fake lubricating oil is adjusted to be equivalent to the real oil.

Through the above introduction, we now know the difference between vacuum pump oil and engine oil.