Brazed Radiator quality requirements
Brazed Radiators are now generally a device for dissipating high-power electronic components and are widely used because of their excellent thermal performance. Although the effect of Brazed Radiator is very good, but Brazed Radiator is also required for the working environment, the following details of the environment under the Brazed Radiator requirements.
1.Brazed Radiator water quality of cooling water should have certain requirements The resistivity of circulating water should not be less than 2.5Ki2, PH value between 6} 9; inlet water temperature is not higher than 35 ℃, the water flow rate of 4 a 8L / min;
2. When used in high voltage or higher voltage devices, the above water quality requirements or higher water quality requirements must be ensured;
3.Brazed Radiator at work, should pay special attention to leak-proof, anti-clogging, anti-condensation.
4.Brazed Radiator installation, the radiator blades should be along the cooling air flow direction; inlet air temperature is not higher than 400C, the inlet side of the wind speed of 4 - 6mls;
5. Because Brazed Radiator has the characteristics of wind resistance parameters, when selecting the radiator in the whole machine, the heat resistance, flow resistance and wind speed of the radiator should be checked according to the load requirements and the fan capacity. Considering the heat resistance and wind resistance of the radiator Two parameters.
With the popularity of Brazed Radiator, a large number of low-quality and inferior Brazed Radiators appeared on the market. This radiator has a wide gap with national industry standards in terms of materials, processing requirements and quality of components. , In use of the device life and overall quality have a greater impact. Users can choose from the following aspects to be identified:
1.1 heat sink contact surface roughness and flatness, a direct impact on thermal contact resistance and pressure drop;
1.2Brazed Radiator disc springs should be guaranteed flat after 24 hours, the free height should be stable, otherwise the use of springs may fail after a period of time, will lead to bad radiator and die contact.
1.3 Material (purity, thickness, processing accuracy, etc.) and manufacturing process (casting cracks, shrinkage, etc.) is good or bad, poor quality materials and rough defects will lead directly to the Brazed Radiator thermal conductivity.
Brazed Radiator is a kind of ordinary durable consumer products, its main function is to heat, followed by energy saving, durability, decoration, low price and other considerations. China's vast territory heating area from the original north of the Yangtze River to the south of the Yangtze River gradually expanded to the application of radiators are also increasing year by year, with the popularity of the use of radiators products are also increasing year by year, the manufacturer from the original one More than a thousand have now increased to nearly four thousand, radiator types of product structure, the use of materials are also different, with cast iron, steel, copper and aluminum composite, steel and aluminum composite, stainless steel aluminum composite, should have said Some advantages. Brazed Radiator has good corrosion resistance and pressure, the downside is poor decorative. Brazed Radiator advantages are free to make all kinds of shapes, decorative better, but the corrosion resistance is difficult to meet the domestic heat medium water quality, heat efficiency and less than other radiators. Brazed Radiator with the help of aluminum fin thermal enlargement, but did not change its built-in shortcomings. Stainless steel single-piece heatsink and Brazed Radiator are free to produce a wide variety of heat sinks, but stainless steel heat transfer is not as good as the Brazed Radiator, which has the lowest thermal conductivity of all different heat sinks and the welding process is more difficult. High temperature welding ruined its physical properties, but poor corrosion resistance, low cost high temperature welding products, the intensity is difficult to guarantee.
