Welded Intercooler Tube Manufacturers

Moving beyond the radiator, the rest of the system is just as important. The biggest mistake many gearheads make with their cooling system is the fan. Mechanical fans are just fine, but they eat horsepower and are not controllable. Electric fans are the best option for any car that is not restrained by originality. Regardless of the fan style, all fans should be shrouded, especially mechanical fans. Without a shroud, a mechanical fan is just stirring up the air around it, there is little draw through the radiator at all. With a shroud, the fan generates a vacuum, pulling air into the radiator. This is only important below 40 mph, once the vehicle is moving 40 or faster, the natural airflow takes over.

Since the engine oil has thermal conductivity and circulates continuously in the engine, the oil cooler cools the engine crankcase, clutch, valve components, etc. Even for water-cooled engines, only the cylinder head and cylinder wall can be cooled by water, and other parts still rely on the oil cooler for cooling.

A radiator is a heat exchanger used to transfer thermal energy from one medium to another for the purpose of cooling and heating. The majority of radiators are constructed to function in cars, buildings, and electronics. A radiator is always a source of heat to its environment, although this may be for either the purpose of heating an environment, or for cooling the fluid or coolant supplied to it, as for automotive engine cooling and HVAC dry cooling towers. Despite the name, most radiators transfer the bulk of their heat via convection instead of thermal radiation.[citation needed]

The flux used in aluminum brazing is called aluminum flux. Its function is to remove oxides on the surface of the filler metal and the base metal, protect the weldment and the liquid filler metal from oxidation during the brazing process, and improve the wettability of the liquid filler metal to the weldment.