Commodity name: new anti-wear tester with a five-digit display

 Display voltage (V), current (A), instantaneous power (W), power consumption (KWH), instantaneous temperature of oil (T)
Directly use an experiment to explain the reason (this experiment has video), two machines are placed side by side at the same time and start experimenting at the same time, in order to strictly guarantee the fairness of the experiment, the new steel ring machine is used at room temperature (no experiment, because the machine only It will be very hot to do the experiment). Place 2 weights at the same time, run for 3 to 5 minutes, observe current (A), instantaneous power (W), power consumption (KWH), temperature change, and observe the following points.

 1. Temperature (the deeper level is a change in viscosity, and the viscosity index indicates the degree to which all fluid viscosity changes with temperature. The higher the viscosity index, the smaller the viscosity of the fluid is affected by temperature, and the less sensitive the viscosity is to temperature): the same time The oil temperature is low, generally speaking, the quality is good. Let me talk about the specific reasons.

       The first point of lubricating oil base oil temperature resistance (lubricating oil is composed of 90% base oil and 10% additive, temperature resistance is a very important indicator of the base oil, the base oil is always determined to be good or bad, the additive is only auxiliary Function) can also be understood as viscosity, which is characterized by low-temperature fluidity in the engine and shear at high temperatures.
High viscosity oil is high-grade high-grade engine oil. This is common sense. There is no doubt (35-80 is medium viscosity index lubricant; 80-110 is high viscosity index lubricant; 110 or above is extra high viscosity index lubricant. Viscosity index is at The oil of 100-170 is a high-grade multi-grade lubricating oil, which has a gentle change of viscosity-temperature curve and good viscosity-temperature. At lower temperatures, the polymer organic compound molecules in these viscosity index improvers are in oil. The solubility is small, the molecules are twisted into a tight small group, and thus the viscosity of the oil increases little; at high temperatures, its solubility in oil increases, and the tortuous linear molecules expand and expand, thereby causing a large viscosity increase. It compensates for the viscosity of the base oil which drops due to the increase in temperature. Therefore, the higher the viscosity index, the smaller the viscosity changes with temperature.
The benefits of high viscosity oil are: good fluidity at low temperatures, cold start protection engine (90% engine wear occurs in cold start. This is due to long time placement, engine oil return), can quickly flow to the appropriate position, Prevent dry grinding. The high-temperature shear property means that the solubility of the polymer organic compound molecules in the viscosity index improver is increased in the oil, and the warp-shaped linear molecules are expanded and expanded, thereby making the viscosity increase larger, making up for the increase of the base oil due to the temperature. And the viscosity is lowered. Therefore, the higher the viscosity index, the smaller the viscosity changes with temperature. The second point of lubricating oil in the engine has lubrication and friction reduction, sealing and leakage prevention, auxiliary cooling and cooling, anti-rust and anti-corrosion, shock absorption buffer. The temperature rises quickly, and the high temperature lubricant will atomize on the inner wall of the engine, losing fluidity and losing the above-mentioned effect). The actual lubricating oil situation is very complicated, but the result of detecting 99% of the lubricating oil is similar, because there will be no adjustment of the lubricating oil factory for our machine, adding special substances (increasing the viscosity) to our machine, so there is a certain Fairness and fairness

 2 Current (A) and Instant Power (W): This experiment is a simulation experiment; the following data are analogous. The current (A) and the instantaneous power (W) represent the fuel consumption. The test machine represents the operation of the engine. The wear scar of the steel ball represents the wear inside the engine. The load is also loaded with 2 weights. The lubricant with low current is less active. With a small force, it can be understood that I can achieve the same experimental effect with a smaller force. Analogy is the actual use of lubricating oil added to the car, the first fuel consumption will drop (saving money), have a longer oil change cycle (saving maintenance money), the smaller the wear scar, the lubrication and anti-friction effect is good, can keep the engine running well. status.

 3 total power (kwh), the same time (simultaneous start), see that the work done less, indicating that it is more fuel-efficient, extend the oil change cycle, protect the engine, reduce wear and increase the life of the car, the reason in the 1,2 project Already explained

4 Observe the color odor change. Generally speaking, the color of the good lubricant does not change much, and the color will not change very much (for example, the light yellow before the experiment, the experiment is dark black, the light yellow is a little deeper), and the smell is in the experiment process. It won’t change the pungent, unpleasant.) Moreover, good quality lubricants generally do not smoke (boiling) at the same time, and the color of the unsatisfactory lubricants varies greatly, and smoke (boiling)