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Controlled Atmosphere Aluminium Brazing in Batch Type Furnace

Purpose

Brazing trials for single or small numbers of units, e.g. prototypes or mock up components. It offers a means of simulating the whole production process starting with part assembly, fluxing (wet and electrostatic methods are possible) and brazing. The size of the brazing chamber and other equipment makes it possible to braze standard-size heat exchangers.

Procedure

The components are cleaned by aqueous washing, then assembled and fluxed in either a wet spray or electrostatic chamber. Other fluxing alternatives like pre-fluxing with a mixture of flux and binder are also possible. The details of the fluxing process are individually chosen depending on the part design and customer requirements.

Brazing is performed under nitrogen atmosphere in a batch type furnace. The length of time the parts are heated closely matches typical heating rates seen in industry.