Shanghai Changji -- Take You to Understand The Importance of Kinematic Viscosity of Petroleum Products

With the popularization of lubricating oil knowledge, consumers have a preliminary understanding of the four indexes of viscosity, flash point, pour point and viscosity index. Today, let's talk about the viscosity index, which is one of the important indexes to judge the quality of lubricating oil.

I. Significance of viscosity index

1. Lubricating oil, such as cutting oil, forming oil and hydraulic oil, is classified according to the viscosity of lubricating oil.

2. The viscosity of lubricating oil changes during use. The increase or decrease of viscosity can be used to determine whether oil products need to be scrapped or replaced.

3. It can guide and control the production, and control the fraction according to the viscosity.

4. Viscosity is an important basis for selecting lubricating oil. The general rule of its selection is: when the pressure is high, the speed is low, and the wear is large, the oil with high viscosity should be selected; On the contrary, choose oil with low viscosity. When the oil film thickness is needed, choose the oil with high viscosity; In case of strong heat dissipation, choose oil with low viscosity.

5. Viscosity is also an important index of light fuel oil. This is because viscosity, molecular weight and flash point are correlated.

The following is a new product developed by our company, SYD-0956A full-automatic folding tube kinematic viscosity tester, which is an automatic instrument for rapid determination of kinematic viscosity of petroleum products. It is designed and manufactured according to SH / T0956 and ASTM D7279 standards. It is suitable for the determination of kinematic viscosity of transparent and opaque liquids, including base oil, blended lubricating oil, biodiesel, Biodiesel Blended fuel, residual fuel oil, marine oil and lubricating oil in use.

II.Application fields

It is mainly used in national quality supervision bureaus, scientific research institutes, colleges and universities, import and export inspection and quarantine, major refining and chemical enterprises (Sinopec, etc.), third-party testing (SGS, Guolian testing, etc.), ports, oil depots, gas stations, textiles, medical treatment, etc.

III. Main features

1. The test process is fully automatic.

2. The temperature control precision is 0.01 ℃.

3. With dual solvent automatic cleaning function, automatic discharge bath function, automatic stop after the end of the test.

4. The average measurement time was less than 3 minutes.

5. It has dual functions of over temperature protection and dry burning prevention.

6. The viscometer can be replaced without draining the bath liquid, and the replacement can be completed within 2 minutes.

7. The test process includes measurement, cleaning, drying, test result calculation and data storage.

8. The two-way folded tube detection is an independent test unit, which can carry out parallel detection of the same sample or independent detection of two different samples at the same time, and the instrument can choose to replace the folded tube with different inner diameter, so the measurement range and applicability are more extensive.