Main advantages of new copper aluminum radiator

2022-07-22
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The outstanding feature of the products of copper aluminum composite radiator manufacturers is that the ventilation parts and heat dissipation parts in the radiator are treated separately, giving play to the characteristics of copper corrosion resistance, light weight, good heat conduction and easy forming of aluminum. The specific advantages are described below:

the outstanding feature of the products of copper aluminum composite radiator manufacturers is that the ventilation parts and heat dissipation parts in the radiator are treated separately, giving play to the advantages of copper corrosion resistance, light weight and good heat conduction of aluminum The characteristics and specific advantages of easy forming are described below:

1 with copper pipe as the water connecting part, the corrosion resistance is strong, which can ensure the service life higher than that of the ordinary steel pipe used in the heating system. According to the national standard code for treatment of industrial circulating cooling water (gb50050-95), the annual corrosion rate of carbon steel pipe wall shall be less than 0.125mm/a; The annual corrosion rate of copper, copper alloy and stainless steel pipe wall shall be less than 0.005mm/a. That is, the corrosion resistance of copper pipe is about 25 times that of carbon steel pipe. That is, using copper pipe with wall thickness of 0.5mm is also equivalent to the corrosion resistance life of carbon steel pipe with wall thickness of 12.5mm

2. Taking copper pipe as the water supply part can achieve high pressure bearing capacity and improve the working pressure of the radiator

according to the national standard copper and copper alloy drawn tubes (gb/t1527-1997), for T2 and T3 copper tubes, the wall thickness of the product ranges from 0.5 to 10mm, and the calculation formula of factory hydraulic test pressure is:

p=2 ・ s ・ t/(d-0.8t) (MPA)

where t is the wall thickness (mm); D is the outer diameter of the pipe (mm); S is the allowable stress (41.2mpa for pure copper). According to this formula, the factory pressure test values of copper pipes with different pipe diameters and wall thicknesses can be calculated. Therefore, copper pipes with different wall thicknesses can be selected according to the requirements of radiator working pressure

3. Aluminum is used as the heat dissipation part, which has low density and is easy to form. It can be made into different shapes and sizes according to thermal engineering and use requirements, so as to reduce the self weight of the radiator and improve the metal thermal strength of the product

aluminum has good thermal conductivity, and its density is 2.7g/cm3. While steel is 7.8g/cm3. Obviously, when aluminum is used as the heat dissipation part, the material weight when reaching the same heat dissipation area will be much lower than that of carbon steel and cast iron. The metal thermal strength of copper aluminum radiator can generally reach more than 2.2w/(kg ・ ℃), which is about five times that of cast iron radiator and more than three times that of steel radiator. As for the copper aluminum radiator, although some copper tubes are used, the weight will be reduced due to the thin wall thickness

4. The use of tube expansion process can ensure the close combination of water channel and heat dissipation components. The tube expansion process includes hydraulic tube expansion and mechanical tube expansion, which can meet the basic requirements of heat transfer of radiator. The expansion pressure of copper pipe is much lower than that of steel pipe, which is convenient for process implementation

5 there is no pollution in the production process, which can avoid the extreme pollution to the environment during the production of cast iron radiators, or the pollution in the process of anti-corrosion treatment of other types of radiators

this article is composed of radiator: http://www.tjsqwx.net/index.php/cainuan Organize and compile

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