An example of a project implemented by our thermal pole and completed in 2008: Cuprobraze
The regulatory scene carries innovation in the industrial motor cooling market. A series of standards imposes to all motorists in the world to comply with a maximum amount of polluting emissions due to exhaust gas. The application of the standards is scheduled in a calendar, according to the geographical zone and power of the motor considered.
The polluting nature of exhaust gases can be reduced by more complete combustion of the fuel, and hence operation at increasingly higher temperatures and pressure.
Indeed, the enforcement of new standards leads motorists to design assemblies running at levels of temperature and pressure (350°C and 3 to 5 bars) at which classical radiators (tinned copper type) no longer are appropriate. In this temperature range, the tin used for welding copper radiators is close to the liquid state, and loses its mechanical properties, radiators can withstand pressure up to 3 to 5 bars.
HEBCO RADIATEURS is developing an innovating process for brazing copper under vacuum: cuprobraze. Copper is hence brazed without filler metal, and is able to withstand levels of pressure and temperature higher than aluminum.
HEBCO RADIATEURS has very early identified the point in the cuprobraze technology, making a series of investments (vacuum copper brazing oven, harness assembly table, evolutive tube manufacturing machine, fin manufacturing machines…). HEBCO RADIATEURS started working on cuprobraze as early as 2000. Over 2 million Euros have already been invested.