Applications

A vacuum brazing furnace is a specialized type of furnace used for a process known as vacuum brazing. Vacuum brazing is a material-joining technique that offers significant advantages over other metal-joining methods. This procedure is performed in a furnace under vacuum conditions, which prevents oxidation and results in a cleaner, high-quality joint.

A vacuum brazing furnace operates by creating a high-temperature environment in which brazing occurs, under vacuum conditions. Metals to be joined are placed in proximity, and a filler metal (or brazing alloy) is used. Under the high temperature, the filler metal melts and flows into the joint by capillary action. The vacuum environment ensures that no oxidation occurs, creating a clean, high-strength joint once the filler metal cools and solidifies.

The vacuum brazing furnace’s unique features make it highly useful across a variety of industries. In the aerospace industry, vacuum brazing is used to manufacture parts that require high strength and resistance to extreme temperatures. In the electronics industry, it is used to create connections that require high precision and reliability. The medical and automotive sectors also benefit from vacuum brazing, where it is used to produce complex, high-quality joints.

standard features

• The advanced molybdenum alloy heating body and metal heat insulation screen structure make the furnace pure and pollution-free.
• A high-precision PLC intelligent temperature and process control system allow for efficient and safe unattended operation.
• The horizontal structure enables horizontal loading of samples.
• Our double-layer tank water-cooled sealed structure allows for operation under vacuum or a protective atmosphere.
• The system includes a molecular pump and rotary vane mechanical pump vacuum unit, which can achieve a cold ultimate vacuum of 6.67×10^-4pa.
• The stainless steel tank flange type compression seal structure has been tested with a helium mass spectrometer leakage detector. It includes a high vacuum valve and has a pressure rise rate of ≤ 1pa.
• The vacuum brazing furnace heating body is uniformly distributed around the furnace chamber for circular heating. The scientific thermal distribution ensures uniformity of ≤ ± 5 ° C.
• The system includes an industrial air-cooled chiller, which has high cooling efficiency, operates in a closed self-circulation, and has low operating costs.

technical details(models)

Model	STV-422-13
Inner dimension	φ390×600mm
Outer dimension	2000×1600×2050mm
Working dimension	200×400×200mm
Max temperture	1300℃
Working temperture	1200℃
Voltage/Power	380V/50KW
Heating element	Molybdenum lanthanum alloy
Temperature control	7-inch intelligent microcomputer PID touch instrumentation, SCR regulator control, PID parameter self-tuning function; can be programmed 15 groups of 30 program segments, program heating, program insulation, program temperature reduction
Heating speed	1-20℃/min free adjustment
Temperature control accuracy	±1℃
Measuring element	N-type thermocouple
Vacuum degree	Cold limit vacuum degree 6.67×10-4pa
Equipment protection	In case of exceeding the temperature limit or a malfunction during the operation, the modular control system will issue audio-visual alarm signals and automatically execute protective measures.
Safety protection	The equipment comes with an open circuit breaker. In the event of short-circuit leakage, it will automatically pop up to ensure the safety of both the equipment and the operator.
Shell	The stove’s outer casing is made of Q235 low carbon steel, featuring electrostatic and corrosion resistance on the surface. It has a sturdy metal frame shell structure, with a low furnace surface temperature.
Thermal insulation material	Metal molybdenum heat insulation screen as the furnace chamber heat preservation and insulation material
Certificates	ISO9001   CE   SGS   TUV
Standard configuration	furnace, power cord three meters, thermocouple, copy of the manual, load table, one pair of high-temperature gloves, molecular pump vacuum unit, industrial chiller