As the weather turns cold, the tank is prone to cracking due to freezing and the choice of antifreeze is a top priority for the health of the car's heart. Antifreeze is called antifreeze coolant. It has antifreeze in winter and anti-boiling in summer. It protects the engine's cooling system, improves heat dissipation, and improves engine efficiency.
The basic indicators of antifreeze are freezing point and boiling point. Under normal circumstances, the lower the better the freezing point, the freezing point of the selected antifreeze should generally be less than the local minimum temperature of 10 °C or more, in preparation for sudden changes in the weather. For example, the multi-effect antifreeze produced by Great Wall Lubricants has a freezing point in the range of -25°C to -50°C, which can meet the antifreeze requirements of vehicles in most regions in northern China.
The freezing point of ethylene glycol and water antifreeze is not linear with the mass fraction of ethylene glycol. The freezing point of its aqueous solution does not completely decrease with increasing concentration. When the concentration exceeds 70%, the freezing point rises instead. Therefore, in the preparation process, reasonable selection should be made from the actual point of view in order to achieve the requirements of antifreeze and economy, and prepare the antifreeze solution. In Jiangnan of China, the proportion of ethylene glycol with a mass fraction of 40% is generally used, while in the cold northern China, the proportion of about 50% of the mass fraction of ethylene glycol is appropriate.
Formulation of loader antifreeze
name
Said
ingredient%
Composition ratio
Condensation point °C
≤
Ethylene glycol
alcohol
glycerin
water
Ethylene glycol
antifreeze
60
Â
Â
40
Volume ratio
-55
55
Â
Â
45
-40
50
Â
Â
50
-32
40
Â
Â
60
-twenty two
alcohol
glycerin
antifreeze
Â
30
10
60
Weight ratio
-18
Â
40
15
45
-26
Â
42
15
43
-32
In the preparation process, reasonable selection should be made from the actual point of view in order to achieve the requirements of antifreeze and economy. In Jiangnan of China, the proportion of glycol with a mass fraction of 40% is generally used, while in cold northern China, the proportion of about 50% of the mass fraction of ethylene glycol is appropriate.
PAL-91S and PAL-92S Mini Digital Glycol Refractometer, known as Antifreeze Concentration Meter, Freezing Point Concentration Meter, is professionally applied to the measurement of ethylene glycol solution, and shows its solution concentration and freezing temperature. Its simple operation, quick display, and stable repeatability can better help our customers in the measurement of frozen liquids (name: antifreeze refractometer), ensuring the normal operation and service life of the car.
For more antifreeze, snowmelt, and freezing point measurement solutions, we will enthusiastically provide a complete, fast on-site analysis trial, please contact Guangzhou AiSheng Scientific Instrument Co., Ltd. Looking forward to your inquiry
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