Controlled Atmosphere Aluminum Brazing
Convection Preheat/Radiation Braze Furnace
When your brazing needs are more diverse, a combination of convection preheating
and radiation brazing could be your answer. The addition of convection
preheating to a radiation braze chamber improves the furnaces overall
flexibility, enabling manufacturers to braze products of different mass
and dimensions without changing the furnaces set point parameters.
 |
| Convection Preheat/Radiation CAB line for production of automotive radiators with 5 Preheat
& 5 Braze zones |
As the picture demonstrates, the preheat chambers uses both convection
heating and radiation heating to uniformly preheat the products in a
continuous cycle. Once preheated to approx. 540 degrees C (1000 degrees
F), the heat exchanger moves into the radiation brazing section and is brought to and
held at a uniform temperature to allow the cladding to melt and form a
joint. This type of furnace also uses
stainless steel convection preheat and radiation muffles.
Furnace Type |
Radiation |
Convection Preheat/Radiation |
Convection |
| Time to Braze |
High |
Medium |
Low |
| Product Intermixing |
Low |
Medium |
High |
| Atmosphere Consumption |
Low |
Low |
Medium |
| Maintenance |
Low |
Low |
Medium |
| Flexibility |
Low |
Medium |
High |
| Cost |
Low |
Medium |
High |
Typical System Configuration

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P. O. Box 908 180 Mercer Street Meadville, PA 16335-6908 USA
Phone (814)332-8400 - Fax (814)724-1407
info@secowarwick.com
©1995-2010 SECO/WARWICK Corporation All Rights Reserved.
The latest design, materials and
equipment specifications should be obtained from the company before any
reliance is placed on the enclosed since changes may occur due to
product improvement.
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