Vacuum Atmosphere Furnace Characteristics

Atmospheric furnace is a high temperature furnace which integrates the double characteristics of box furnace and tubular furnace. It is suitable for the experiment and production with large sample proportion and atmosphere requirement. It adds the air inlet and outlet, the furnace body is sealed and welded. There is a ring of high temperature silicone rubber seal at the door of the furnace, and the sealing ring is equipped with water-cooling protection device. Therefore, vacuum ventilation atmosphere can be pumped during the test, and the vacuum effect can reach 100 Pa.

Resistance furnace of tubular atmosphere furnace mainly uses metallurgical, glass, positive and negative materials of lithium battery, new energy and other materials under certain atmosphere and vacuum conditions. There are single tube, double tube, horizontal, vertical, open, single temperature zone, double temperature zone, three temperature zone, multi-temperature zone and other furnace types. Suitable for heating and sintering of small sample workpiece, with safe and reliable, simple operation, good temperature control **, good heat preservation effect, wide temperature range, high furnace uniformity, multiple temperature zones, optional atmosphere, vacuum furnace type, can compile 31 sections of program, working mode will put the furnace tube into the furnace for heating.

The atmosphere furnace uses silicon-molybdenum rod as heating element and double shell structure. Phase shift trigger and thyristor control. Furnace uses alumina polycrystalline fibre material, double-layer shell is equipped with air cooling system, which can quickly cool down the temperature control system. Atmosphere furnace adopts shell integral seal, cover plate seal, silica gel pad and water cooling system. Gas passes through flowmeter and enters and exits from the back chamber. There are several inlets and outlets for washing furnace, which can pass hydrogen and argon. Gases such as gas, nitrogen, oxygen, carbon monoxide, ammonia decomposition gas, etc. The furnace has the advantages of balanced temperature field, low surface temperature, fast temperature rise and fall, energy saving and so on. It is an ideal product for atmosphere protection sintering and atmosphere reduction in universities, scientific research institutes, industrial and mining enterprises.

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Vacuum Sintering Furnace Main Principles

Vacuum sintering furnace is a protective sintering furnace for heated articles in vacuum environment. There are many heating modes, such as resistance heating, induction heating, microwave heating and so on. Vacuum induction furnace is a kind of furnace which uses induction heating to protect the heated objects. It can be divided into power frequency, intermediate frequency, high frequency and other types, and can be classified as a subcategory of vacuum sintering furnace.

Vacuum induction sintering furnace is a complete set of equipment for sintering cemented carbide cutters and various metal powder compacts by using the principle of medium frequency induction heating under vacuum or protective atmosphere. It is designed for the industrial production of cemented carbide, dysprosium metal and ceramic materials.

I. Principles and Applications

Vacuum induction tungsten sintering furnace is under the protection of hydrogen gas after vacuum pumping. By using the principle of medium frequency induction heating, the tungsten crucible in the coil produces high temperature, which is transmitted to work by thermal radiation. It is suitable for powder forming and sintering of refractory alloys such as tungsten, molybdenum and their alloys by scientific research and military units. II. Main Structure and Composition

The structure forms are mostly vertical and discharging. Its main components are: electric furnace body, vacuum system, water cooling system, pneumatic system, hydraulic system, feeding and discharging mechanism, base, worktable, induction heating device (tungsten heater and advanced thermal insulation material), power supply device, medium frequency power supply and electrical control system, etc.

III. Main Functions

After vacuuming, hydrogen gas is filled to control the sintering state of pressure and atmosphere in the furnace. Optical fibre infrared radiation thermometer and armored thermocouple can be used to continuously measure temperature (0-2500 C). After comparing with the setting program, the intelligent temperature controller can choose to implement state feedback to medium frequency power supply, automatically control the temperature and heat preservation program.

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Latest Wholesale Price of Vacuum Furnace

The vacuum furnace produced by our company integrates control system and furnace, and has compact and beautiful structure. The furnace lining is made of high purity alumina ceramic fiberboard, which has small heat storage, good heat preservation and energy saving effect, light weight and small space occupation.

The shell adopts double-layer air-cooling structure to ensure that the surface temperature of the shell is close to room temperature. The temperature control system adopts 0.2-level intelligent instrument with industrial precision, PID control and 51-stage programmable automatic control. The vacuum furnace is widely used in Colleges and universities, scientific research institutes and enterprise laboratories. It is an ideal equipment for sintering, melting, analysis and development of metal, non-metal and other compound materials.

Vacuum furnace uses alumina fiber as lining, silicon carbon rod or silicon molybdenum rod as heating element. Distribution of diffusion pump or molecular pump vacuum unit. It is widely used in heat treatment and copper welding of metal materials in high vacuum, reducing and protective atmosphere. Externally closed vacuum tank with water cooling system, the whole machine has novel structure, easy operation and affordable price.

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Precautions in the use of vacuum sintering furnace

Vacuum sintering furnace is a kind of hydrogen-filled protective state after vacuum pumping, using the principle of medium frequency induction heating, let the vacuum sintering furnace in the tungsten crucible in the coil produce high temperature, and then through the transmission of heat pairs to work, today I will tell you what things it should know when it is used.

1. Check that all parts and accessories in the control cabinet are complete and intact.

2. The control cabinet is installed on the corresponding foundation and fixed.

3. Anzhao wiring diagram, and referring to the electrical schematic diagram, connect the external main circuit and control circuit, and reliable grounding to ensure that the wiring is correct.

4. Check movable parts of electrical appliances should move freely without stuck.

5. Insulation resistance should be no less than 2 MOhms.

6. Valves of vacuum sintering furnace must be closed.

7. Control the power switch on the switch.

8. Manual pressure regulating knob rotates head counterclockwise.

9. Connect the circulating cooling water of the equipment according to the plan. It is suggested that the user connect a standby water (available tap water) at the total inlet and outlet pipe of the vacuum sintering furnace to prevent the seal ring from burning out due to the failure of circulating water or power failure.

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Vertical Vacuum Furnace Working Principle

Vertical vacuum furnace is a protective furnace for heated objects in vacuum environment. There are many heating modes, such as resistance heating, induction heating, microwave heating and so on. Vacuum induction furnace is a kind of furnace which uses induction heating to protect heated objects. It can be divided into power frequency, intermediate frequency, high frequency and other types, and can be classified as a subcategory of vertical vacuum furnace.

Vacuum induction furnace is a complete set of equipment for the production of cemented carbide, dysprosium metal and ceramics by using the principle of medium frequency induction heating under vacuum or protective atmosphere.

The main principle and application of vacuum induction tungsten furnace is to make tungsten crucible in coil produce high temperature under the protection of hydrogen after vacuum pumping. It is conductive to work through heat radiation. It is suitable for powder forming of refractory alloys such as tungsten, molybdenum and their alloys by scientific research and military units. Secondly, the main structure and composition of the structure are mostly vertical and discharge mode. Its main components are: electric furnace body, vacuum system, water cooling system, pneumatic system, hydraulic system, feeding and discharging mechanism, base, worktable, induction heating device (tungsten heater and advanced thermal insulation material), power supply device, medium frequency power supply and electrical control system, etc. 3. The main function is to fill the hydrogen protective gas after vacuum evacuation to control the pressure and atmosphere in the furnace. Optical fibre infrared radiation thermometer and armored thermocouple can be used to continuously measure temperature (0-2500 C). After comparing with the setting program, the intelligent temperature controller can choose to implement state feedback to medium frequency power supply, automatically control the temperature and heat preservation program.

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