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battery charging test conditions at different ambient temperatures
At present, the battery is undoubtedly the most core and critical component in electric vehicles. Therefore, both the OEM and the battery factory need to conduct a comprehensive test of the battery. The characteristics of automotive lithium-ion power batteries are greatly affected by ambient temperature. In low temperature environment, the available energy and power attenuation is more serious, because long-term charging in low temperature environment, the life will be greatly shortened. In t...
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Where are the applications of the CO2 supercritical extraction cryogenic refrigeration unit?
With the continuous development of co2 supercritical extraction technology, co2 supercritical extraction cryogenic refrigeration devices have attracted the attention of many industries due to their own characteristics, and have been widely used in various chemical reactions.1. Catalytic reaction: The use of supercritical CO2 fluid as the solvent in the enzyme-catalyzed reaction can promote the enzyme-catalyzed reaction. The activity and stability of many enzymes are very good. The reaction ra...
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Industria e introduzione del refrigeratore a bassa temperatura
In petroleum refining, petrochemical industry, organic synthesis, chemical products and other industrial production, refrigeration technology must be applied to control the reaction temperature during processes such as liquefaction, condensation, solidification, separation, refining, crystallization, concentration, and purification. The chemical industry is mainly used for the cooling and cooling of chemical reaction kettles, and takes away the ordinary heat generated by chemical reactions in...
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Cooling and shrinking assembly freezer for metal parts and common assembly methods in the industry
In the cold shrink production of copper sleeves, bearings, etc., quick-freezing cryogenic boxes are widely used in mechanical assembly. Copper sleeve cooling shrink assembly cabinet variable temperature assembly method is to heat the hole or cool the shaft. When the diameter is larger or the interference amount is larger, the parts will be damaged if assembled at normal temperature. In this case, the method of heating and containing the parts or cooling the contained parts should be used for ...
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The reason for the existence of cryogenic refrigerator in the tool parts manufacturing industry
Cryogenic treatment is applied to worn tools, die cutter materials, and later extended to alloy steel, cemented carbide, etc., this method can change the internal structure of metal materials, thereby improving the mechanical and processing properties of the material, it is currently One of the toughening treatment processes. The cryogenic cryostat can cause obvious changes in the structure, effectively promote the transformation of retained austenite to martensite and the precipitation of u...
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Mechanical cold assembly equipment is dedicated to cold processing assembly of metal parts
Mechanical cold assembly equipment is a method of processing workpieces at temperatures below -130℃. Cryogenic treatment can significantly improve the toughness of the workpiece without reducing the strength and hardness of the workpiece. Mechanical cold assembly equipment is suitable for containing parts (such as planet carrier, torsion arm, etc.). If the parts cannot be heated or heating parts will cause parts accuracy, material organization changes, and affect their mechanical properties, ...
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Temperature control during new energy vehicle battery test
With the continuous implementation of energy saving and emission reduction policies, new energy power batteries are also continuously encouraged to develop, and liquid cooling systems have become an inevitable trend for new energy vehicles. The original new energy vehicles can no longer solve the problem of battery heat dissipation by using air-cooled heat dissipation. The advantages of the liquid cooling system of Lneya's KRY high and low temperature coolant tester are fast cooling rate, goo...
Visualizza i dettagliRecommendations for the use of integrated chip test equipment in the test process
From the perspective of the entire semiconductor industry, semiconductors can be divided into R & D, production, and application stages. At different stages, the role of testing is different. Control of test equipment, including test machines, probe stations, sorting machines, etc. Used in different processes and under different working conditions, integrated chip test instruments need to pay attention to some use knowledge when used. Temperature changes on the chip can significantly affe...
Visualizza i dettagliApplication of crystallization technology of ultra-low temperature chiller in petroleum industry
This article mainly introduces the application of the freezing technology crystallization technology of industrial refrigerators in the oil industry and the principle of freezing crystallization. At present, the separation method using freeze crystallization technology in the separation and purification of the oil and fat industry, and its operation and application characteristics.The process by which crystals form in solution is called crystallization. There are generally two methods of crys...
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Temperature control system for controlling integrated circuit chip test temperature
Advances in semiconductor technology have led to the development of next-generation electronic devices such as integrated circuits, which have more and more active components, higher circuit complexity, smaller area, and tighter wiring. These attributes generate more heat in the electronic device and provide fewer opportunities for heat dissipation. This results in higher operating temperatures and therefore reduces reliability, especially for integrated circuits operating at high frequencies...
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