Molybdenum Foil Vacuum Brazing Furnace

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The molybdenum foil vacuum brazing furnace is a high-temperature brazing equipment, mainly used to connect metal materials together in a vacuum environment. Its working temperature can reach 1350°C and it is suitable for workpieces using silver, copper, and nickel-based fluxes. This equipment uses a molybdenum foil metal furnace chamber and molybdenum heating tapes as heating elements, enabling efficient and high-quality brazing treatment.

Product Overview：
The molybdenum foil vacuum brazing furnace is a device specially designed for metal brazing in a high vacuum environment. It is suitable for high-quality brazing treatment of various metal materials, especially for those applications that require welding in an oxygen-free or protective atmosphere. This equipment uses molybdenum foil as the furnace chamber material, taking advantage of its excellent high-temperature resistance and corrosion resistance to ensure the stability of the welding process and the consistency of welding quality.

Product Features:

High Working Temperature: The working temperature of the molybdenum foil vacuum brazing furnace can reach 1350°C, suitable for various high-temperature brazing and sintering processes.
Uniform Heating: The molybdenum heating tapes are annularly distributed in the furnace chamber, achieving circumferential radiation heating and ensuring high temperature uniformity in the furnace chamber, with the temperature difference controllable within the range of ±5°C.
Excellent Vacuum Performance: Equipped with a mechanical pump + diffusion pump vacuum unit, the ultimate vacuum degree can reach 10⁻³ Pa (cold state), providing an ideal vacuum environment for brazing and sintering.
Advanced Control System: Adopting a PLC automatic control system, simplifying the operation process, improving work efficiency and accuracy.
Optional Accessories: Including an external rapid cooling system, a stainless steel multi-layer material rack, and imported high-quality fluxes to meet the specific needs of different users.

Purchase Information :

If you are interested in our Vacuum brazing furnace, please contact us for more information and a quote.

Phone: 183-3926-3857
Email: jack@cysitech.com
Contact Person: Jack Yang
WeChat: 183 3926 3857

Product detail parameter:

Product name	Molybdenum Foil Vacuum Brazing Furnace
Model No:	CY-M-QH-1350-400
Furnace chamber size	400x400x500mm (width, height, depth). also support customize.
Maximum operating temperature	1350 °C (<2 hours)
Voltage and rated power:	380V, three-phase, 60 KW (heating power).
Temperature control instrument	Independent control cabinet for convenient operation. The equipment adopts a PLC fully automatic control system and can realize one-key switching between automatic and manual modes. In automatic mode, no manual attendance is required. Adopts MCGS Kunlun Tongtai embedded integrated touch screen. This product is designed with a 10-inch high-brightness TFT liquid crystal display, has good electromagnetic shielding performance, and has powerful image display and data processing functions. Can store 30 sintering programs. A single program can realize 30-stage programming. Users can freely name each sintering program and quickly select it. At the same time, it has multiple safety alarms such as overtemperature alarm, open thermocouple alarm, and broken heating element alarm to ensure users' safe production.
Temperature control accuracy	±1 °C
Heating rate	Below 1000 °C, the recommended heating rate is <20 °C/minute.
Thermocouple	Type S; The thermocouple protection tube is a corundum tube with a purity of 99.7%
Heating element	The heating element is a high-temperature molybdenum-lanthanum heating tape, made by double crimping to ensure the high-temperature strength of the heating tape, not easy to deform, and enhance service life.
Vacuum degree	Ultimate vacuum degree 7*10-3 Pa (cold state and insulation).
Furnace shell structure	Double-layer water-cooled furnace shell, outer layer carbon steel and inner layer stainless steel polished. Furnace door handwheel locking device to prevent furnace shell deformation when evacuating or filling with gas.
Maximum pressure in the furnace	(absolute pressure): ≤0.05MPa.

Main Components:

Component Name	Component Description
Equipment Main Body	1 vacuum brazing furnace
Vacuum System	1 set, front-stage pump + diffusion pump
Test Materials	Usually stainless steel, copper, etc.
Random Accessories	Auxiliary accessories (tubes, wires, wrenches, etc.)
Use Manual	Standard configuration

Application Areas：

Brazing of Metal Materials: Applicable to the brazing of materials such as stainless steel, copper, diamond, tungsten steel, and hard alloys.

Vacuum Brazing of High-Temperature Alloy Parts: Applicable to the brazing of high-temperature alloy parts in fields such as aerospace and automobile manufacturing.

Heat Treatment of 3D Printed Metal Workpieces: Applicable to the vacuum annealing, tempering, and stress relief treatment of metal 3D printed workpieces.

Research and Production Enterprises: Applicable to high vacuum heat treatment and material research in universities, research institutes, and production enterprises.

Application Case: "Using a Vacuum Brazing Furnace for Brazing High-Temperature Alloy Materials"

Operation Steps:

1. Preparation Work:
Ensure that all parts to be brazed and brazing materials (such as brazing filler) are ready.
Clean and remove the oil and oxide layers on the part surfaces to ensure that the brazing filler can wet the substrate well.

2. Loading Brazing Filler:
According to the brazing requirements, place the brazing filler in the joint gap or directly near the joint.

3. Loading in the Furnace:
Put the fixture or support with parts to be brazed into the brazing furnace and ensure the correct position.

4. Pumping Vacuum:
Close the furnace door, start the vacuum pump, and pump the air in the furnace to the required vacuum degree. This step is crucial for preventing oxidation and ensuring brazing quality.

5. Heating Process:
Start the heating system and gradually increase the temperature to the brazing temperature according to the process requirements. The brazing temperature is usually slightly higher than the melting point of the brazing filler to ensure that the brazing filler melts and fills the joint gap.

6. Holding Stage:
After reaching the brazing temperature, maintain a constant temperature for a period of time to allow the brazing filler to wet and diffuse into the substrate thoroughly, forming a firm metallurgical bond.

7. Cooling Process:
After the brazing is completed, control the cooling rate according to the characteristics of the materials and process requirements. Some materials may require rapid cooling to obtain a specific microstructure, while other materials may require slow cooling to avoid thermal stress.

8. Taking out of the Furnace and Post-treatment:
Wait until the parts have cooled naturally to room temperature, then open the furnace door and take out the parts. According to need, perform post-treatment such as removing brazing residues, cleaning, inspecting, and testing the performance of the brazed joints.

These steps provide a basic guide, and the specific operation may need to be adjusted according to the equipment manual and experimental design.