Controlled Atmosphere Aluminium Brazing Furnace For Aluminum Water Tank / Evaporator

Fire Resistant , Furnace Brazing Equipment , Continuous Electric Heating Aluminum

Overview

It is operated by controlled atmosphere aluminum brazing furnace system. protected by nitrogen, mainly used for continous brazing the workpieces of aluminum water tank, oil cooler, medium cooler, warm air, pipe-belt-type condenser, evaporater, parallel-flow condenser,laminated evaporator, power plant air cooler.

The products produced by thr pure electric heating aluminum brazing furnace.                             

heat exchanger                      intercooler                        condenser

Features

• This type of furnace adopts fireproof, insulation and eco-friendly materials to assure the thermal insulation performance of the furnace. It decreases largely the no-load loss of the equipment.
• Heating furnace sections are well arranged, high-precision advanced temperature control instrument guarantees furnace temperature accuracy less than ± 0.2 °C, and the temperture difference in the brazing zone is less than 3°C
• The high precision online oxygen control system makes sure the atmosphere in the furnace accurate anytime.

Technical characteristics of aluminum brazing furnace

Process flow of aluminum brazing:Put on the parts - degreasing (heat degreasing or water cleaning degreasing)- brazing spray - drying - preheating - brazing - cooling (under protective atmosphere)- strong cooling – take down the parts

The atmosphere in the brazing furnace is significant during the brazing process, it requires that the Oxygen concentration should be below 10 ppm and the drew point is lower than -72°C. The temperature uniformity of the same product is especially important when the brazing temperature is reached, the general requirement is ±3℃. The requirements for some products are even higher.

How to decide the heating speed?

On the premise of uniform heating, therefore, should try to shorten the heating time which improve the heating speed. When determine the specific heating speed, it must be decided by the weldment size, base metal and the features of the solder.