Vacuum brazing furnaceApplication Scope:

Vacuum brazing furnaces are suitable for metal materials, ceramics, stainless steel, high-temperature alloys, and refractory metals. They are used for annealing, brazing, and sintering under high vacuum and high-temperature conditions.

Gas and moisture removal treatment. Also applicable to industries such as: shippingAerospace, power electronics, powder metallurgy, automotive, semiconductor, tooling industry, mechanical engineering, etc.

Vacuum brazing furnaces are suitable for sintering high-purity ceramics into transparent ceramics, tungsten electrodes, and other materials under high vacuum for sintering and degassing treatments, as well as for tungsten-molybdenum products.

Air烧结. Primarily used for high melting point metals and alloys.Melting and sintering of ceramics and other materials, which can also be used for brightening and degassing certain metals, or for

Metals, ceramics, and others are tested under high-temperature vacuum conditions.For physical and chemical properties. Widely used in inorganicMaterials (such as ceramic seals, zirconia, and oxide)

Zinc, aluminum oxide, and other metals; as well as metal materials (such as hard alloys sintered in a vacuum or under protective atmosphere, which can also be used for materials requiring a clean sintering environment)

Heat treatment performed. Suitable for use in pilot batch production by colleges and research institutions.

Vacuum brazing furnaceProduct Description：

Vacuum brazing furnaces feature a horizontal single-chamber structure and a vertical bottom discharge design. The furnace body and door are equipped with double-layer water cooling and a front-to-back door configuration. The high vacuum brazing furnace consists of a vacuum system,

Furnace shell, heating chamber, control system, cooling system,Comprised of water-cooling systems, inflation/deflation systems, pneumatic systems, temperature measurement systems, and feeding mechanisms, etc.

1. Furnace body:

Vacuum brazingThe furnace is composed of a furnace shell, furnace door, and furnace frame, etc., with the shell and door featuring a double-skin jacketed cold wall structure. The furnace door is equipped with double-ellipse end caps and a circular...

Welded from shaped flanges, with the flanges equipped withO-ring seal, featuring an automatic locking cylinder door closing structure.

The workpieces in the horizontal vacuum brazing furnace can be loaded and unloaded through the front and rear furnace doors. The main heating chamber, electrodes, and the exhaust port of the main vacuum pump are set in the middle.

The vertical vacuum brazing furnace door features a vertical lifting structure with an automatic locking mechanism for opening and closing using a screw lifting mechanism. Workpieces can be loaded and unloaded through the lower furnace door.

The central section is equipped with the main heating chamber, electrodes, and the suction port for the main vacuum pump.

2 Heating chamber:

The vacuum brazing furnace heating chamber is composed of a stainless steel shell, insulation layer, insulating components, workpiece support, and heating element.

The heater material uses high-temperature molybdenum sheets. Depending on the working area dimensions and temperature uniformity requirements of the heating chamber, the heater is configured with multiple heating zones or a single-chamber heating zone.

Heated by a controller. The heating zone is measured with a thermocouple. Used for random temperature checks inside the furnace.

Insulation layer by Molybdenum SheetsStainless steel screen composition, clean furnace interior, excellent heat preservation effect.

3、Vacuum System:

3.1 The vacuum brazing furnace is equipped with a diffusion pump vacuum unit according to the vacuum requirements and process: diffusion pump, baffle valve, Roots pump, molecular pump, and mechanical pump.

AndCombination of slide valve pumps and other configurations.Select based on the customer's vacuum degree requirements. Hunan Aipu provides professional selection services.

3.2、Vacuum detection points are installed on the upstream pipeline.To determine if the preliminary vacuum pump is operating normally.

3.3 The vacuum system does not use butterfly valves; instead, high-reliability airlock butterfly valves are employed.

3.4 The upper part of the diffusion pump is equipped with a low-temperature refrigeration trap to prevent the oil from returning into the diffusion pump.Increase the vacuum degree inside the vacuum chamber. Diffusion pump oil temperature is controlled using automatic temperature regulation technology.

Technique that can reduce the return oil of the pump。All contact parts with high vacuum (pipelines, valves) are lined with stainless steel and are processed strictly according to high vacuum standards.

4. Electric Control System:

Vacuum brazing furnace's electrical control systemComprised of touchscreens, programmable controllers, thyristor voltage regulators, vacuum gauges, and recorders, etc., to achieve power supply and control functions.

Record, monitor, and alarm protection features. Programmable Logic ControllerPLC utilizes Siemens CP series, temperature control with Japan's conductive FP93Precisely controls temperature.

At the same time,PLC fully controls the operation of equipment, providing sequential control signals according to process requirements, while simultaneously collecting feedback signals from the site, offering conversion, interlock,

Instructions and alarm signals. The entire process can be automated, except for loading and unloading, and is equipped with a manual operation system.

5. Water Cooling System:

Vacuum brazing furnace body, furnace door, vacuum unit, water-cooled electrodes, and heat exchange system require cooling water. The system distributes water from the main supply pipe to various cooling sections, employing a closed circuit.

Flow-through water recycling system, complete with water pressure alarm system. Inlet branches are connected to the municipal water supply pipeline for emergency use during power outages. Both inlet and return water pipes are made of stainless steel.

Steel pipeline, with an electrode water inlet equipped with a scope for easy observation of the water flow inside the pipeline.

Vacuum brazing furnacePerformance Features：

2.High safety level, featuring a double-layered stainless steel furnace shell, with water-cooled interlayer, the outer shell temperature of the furnace is lower than50°C. Equipped with pressure, water pressure, and high-temperature alarms, featuring safety

3. The vacuum brazing furnace furnace chamber design isIncrease vacuum brazing furnaceFurnace chamber's thermal insulation performance and temperature uniformity Reduce production labor intensity, refractory materials used inside the furnace

4. Optimized circuit and airway design, effectively reducing the consumption of protective gases, and promoting energy and emissions savings.

The intricate design, which keeps the outer surface temperature of the equipment lower, is both aesthetically pleasing and easy to operate. (Water source and water recirculation unit are self-provided or optional by the customer.)

High quality. Sizes can be customized according to customer requirements.

Vacuum brazing furnaceOptional Features:

1.High Vacuum System:Vacuum systems consist of vacuum pumps, Roots pumps, diffusion pumps, molecular pumps, slide valve pumps, and butterfly valves; selection based on customer's vacuum degree requirements. Hunan

Apder offers professional selection services.

2.Gas Purification System

3.Closed-loop cooling water system

Vacuum brazing furnaceTechnical Specifications: