Controlled Atmosphere , Aluminum Brazing Furnace , Continous , Hard
Brazing
Overview
Aluminum brazing furnace is designed for the continuous brazing of
the following products such as aluminum water radiator, oil cooler,
intercooler, serpentine type condenser, evaporator, parallel flow
condenser, laminated type evaporator, air cooler of power station
under nitrogen atmosphere etc.
Features
- High performance refractory material is adopted to ensure the superior insulation feature of the
furnace with low energy consumption while empty load. The excellent designing and manufacturing of the gas distribution
system and atmosphere curtain of the furnace ensure the low consumption of purified nitrogen and save the
furnace atmosphere so as to decrease the production cost.
- Fine and reasonable arrangement of heating zones of heating
furnace, the selection of the hardware of high precision and
advanced temperature control meters and the regulation of software
data ensure the very high precision of temperature controlled of the
furnace (±0.2℃) and temperature difference (≤±3℃) of the products in brazing section (575℃~610℃) .
- Advanced frequency conversion mesh-belt speed control system realizes stepless speed change transmission and precise control
runtime of workpieces in each heating zone so as to realize the
precise heating curve of aluminum brazing.
- High precision oxygen analyzer has provided an advanced means for measure the atmosphere of the
aluminum brazing furnace timely and accurately.
- The spray fluxer has the features of compact in design and
straightforward operation. The spray nozzle insures adequate spray
on the workpieces. Air blower insures that the extra flux can be
blew off.
- High speed circulating air and high heating ability of dry oven ensure the parts going to the furnace will not bring any moisture
which will affect the brazing quality.
- Water cooling section realizes the cooling temperature could be
controlled and satisfies the requirement of process curve so as to
make the metallurgical structure of the joints fine and compact.
- The blower in air cooling chamber has the features of strong cooling capacity and low noise, the clean and comfortable working environment of the operators is
guaranted.
- Sophisticated controlling system, overall warning and protective
system insure the safety of both furnace and operators.
About Aojie
Started in early 1990’s Xi’an Aojie designed and manufactured its
first mesh-belt controlled atmosphere continuous brazing furnace.
In the years that have followed, Xi’an Aojie has committed to
independent research and development of advanced brazing furnaces
and heat treat equipments. Nowadays, Aojie mesh-belt continuous
controlled atmosphere brazing furnace has successfully replaced
imported equipment due to its unique advantages. Aojie mesh-belt
controlled atmosphere brazing furnaces are widely used for brazing
parts of stainless steel, carbon steel, aluminum, brass and copper,
etc. by the industries of automobile, aero-space & aviation,
and household appliances, etc.
Xi’an Aojie is a full service supplier, beginning with initial
technical services such as feasibility studies, facility analysis
and planning, continuing through equipment manufacturing, system
installation, furnace start-up and operator training.
Aojie is always untiringly seeking to provide dependable equipment
and technical support for customers to manufacture high-quality and
low-cost products.
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
Main characteristics of aluminum brazing furnace
- From the stirring of brazing agent, spraying, drying, brazing to
cooling are continuously and automatically operated, which ensures
the mass production reliably and saves the cost to the greatest
extent.
- The parameter related to the brazing quality like drying
temperature, brazing speed, brazing temperature, warming up rate,
nitrogen flow and pressure will be automatically controlled after
setting the program which ensures the product stability.
- All key components are procured globally to ensure the reliability
of aluminum brazing furnace.
- The muffle chamber in the furnace is made of imported stainless
steel plate (SUS316L) with a thickness of 8mm or more.
- Aluminum brazing furnace adopts advanced automatic temperature
control technology, temperature control accuracy is 1°C.
- The advanced atmosphere protection design of aluminum brazing
furnace ensures that the N2 in the furnace is fully protected when
the brazing furnace is in operation, and the amount of N2 is
minimum.
Aluminum Brazing Furnace Parameters
Model | Mesh-belt Width(mm) | Effective Using Space (W×H)mm | Standard Configuration | Total Power | N2Consumption m³/h | Cooling Water Consumption |
AJLL800 | 800 | 700×200 | Degreasing-Spray-Drying-Brazing | 530 | 50 | 6 |
AJLL1000 | 1000 | 900×200 | 730 | 60 | 7 |
AJLL1000 | 1000 | 900×200 | 850 | 80 | 8 |
AJLL1200 | 1200 | 1100×200 | 780 | 70 | 8 |
AJLL1300 | 1300 | 1200×200 | 830 | 80 | 9 |