二手 TAV BRAZVAC TBHA 4x20-65-127 在 卡拉瓦焦, 伦巴第, 意大利
二手
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描述
The horizontal high vacuum furnace with gas cooling, represents the most advanced for
the brazing of aluminum-alloy heat exchangers
, adapting to the most varied charge and part geometries.
Thanks to the particular geometry of the chamber and of the resistors, the exchanger packs are each allocated with both sides exposed to the thermal flow of resistors of high radiant surface. This allows
fast cycles and uniform heating
.
The cycle is automatic and does not require operator supervision.
The temperatures and pressures can be pre-fixed with great precision.
When the charge has reached
the brazing temperature
and has remained there for the time necessary to obtain a complete melting at the surfaces to be coupled, the furnace carries out a first natural cooling step under vacuum and a second step (using nitrogen) at a maximum pressure of O.9 bar ABS.
The geometrical configuration of the resistor and of the thermal chamber was designed to obtain
high heat exchange rates
and