How does a vacuum annealing furnace work?

The rapid annealing furnace uses halogen infrared lamp as a heat source to quickly heat the wafer or material to 300 -1200 through a very fast heating rate, so as to eliminate some defects inside the wafer or material and improve product performance.

The fast annealing furnace adopts advanced microcomputer control system, adopts PID closed-loop temperature control, can achieve extremely high temperature control accuracy and temperature uniformity, and can be configured with vacuum chamber, and can also be configured with multi-channel gas according to user process needs.

Structural features of Heshenglong: The heating chamber is made of stainless steel skeleton, and the heat shield is multi-layer graphite felt, which has a long service life and is easy to maintain. Graphite tube heater is adopted, which is easy to install and maintain, and has a low failure rate.

The air-cooling system is composed of high-power and high-speed motors, high-pressure impellers with large air volume, volutes and deflectors, copper tubes and copper strings, heat exchangers and diversion devices, etc., which can realize the high-speed circulation of air flow with heat exchanger-fan-diversion device-workpiece-heat exchanger, so that the workpiece can be cooled quickly and uniformly. The heating chamber can also be constructed in an all-metal way. The electronic control system adopts PLC and programmable temperature controller to realize three control modes: fully automatic, semi-automatic and manual, and the operation is flexible.

Uses: Mainly used for vacuum heat treatment of high-speed steel, hot and cold die steel, stainless steel, elastic alloy, high-temperature alloy, magnetic material and titanium alloy, as well as vacuum brazing and vacuum sintering.

Vacuum annealing furnace is mainly suitable for stainless steel deep-drawing parts such as plumbing equipment, water expansion parts, pins, medical equipment, stainless steel nails, stainless steel screws, riveting parts, stainless steel bearings, cases, straps, knives, miniature shafts, self-tapping and self-drilling, tableware and other stainless steel products under the control of protective atmosphere for continuous bright annealing, solid solution, demagnetization and stainless steel quenching treatment of multi-purpose furnace.

It is mainly suitable for stainless steel deep-drawn parts such as plumbing equipment, water expansion parts, pins, medical equipment, stainless steel nails, stainless steel screws, riveting parts, stainless steel bearings, cases, straps, knives, micro shafts, self-tapping and self-drilling, tableware and other stainless steel products under the control of protective atmosphere for continuous bright annealing, solid solution, demagnetization and stainless steel quenching treatment of multi-purpose furnace. After treatment, the surface of the product is smooth and clean, no oxidation, no decarburization. It has the advantages of high production efficiency, low energy consumption, less pollution, easy operation and use, and low labor intensity.

It can also be used for brazing and sintering of metal materials. It is the introduction and digestion of the most advanced products from abroad in the early 90s.

I hope mine makes you satisfied, and if you are satisfied, remember to give a good review.

Disadvantages: There is a certain limit to the applicability of heavy raw materials.

1. When pyrolysis of heavy raw materials, because heavy raw materials are easy to coke, they have to shorten the operation cycle, reduce the cracking depth, and often light coke, which shortens the perennial effective production time, and also affects the life of the cracking furnace and furnace tube. As a result of reducing the cracking depth, the utilization rate of raw materials is not high, and the quantity of low-value products such as heavy raw material oil is large, and the cost of public works is also increased.

2. Vacuum tube furnace is an instrument for the laboratory, industrial and mining enterprises, scientific research units for elemental analysis and determination, and for the quenching, annealing, tempering and heating of new materials such as electronic ceramics of general small steel Li Qing.

The working principle of bell annealing furnace is dear, the bell furnace has two layers of heating cover and protective cover, in which the strip is sealed in the protective cover, which is filled with protective gas, such as nitrogen and hydrogen, etc., and the cold-rolled strip is heated and annealed in the protective gas, which is not imitated before the oxygen beat, and does not produce decarburization. Cold rolling: using hot-rolled steel coil as raw material, cold continuous rolling after pickling and removing the oxide scale, the finished product is rolled hard coil, due to the cold work hardening caused by continuous cold deformation, the strength and hardness of the rolled hard coil rise, and the toughness index decreases, so the stamping performance will deteriorate, and it can only be used for simple deformation parts.

Rolled hard coils can be used as raw materials for hot-dip galvanizing plants, because hot-dip galvanizing units are provided with annealing lines. The weight of the rolled hard coil is generally 6 tons, and the steel coil is continuously rolled at room temperature for the hot-rolled pickled coil. The inner diameter is 610mm.

The thermocouple converts the furnace temperature into a voltage signal and adds it to the microcomputer temperature control regulator. The regulator compares this signal to the programmable setting and outputs an adjustable signal. Then the adjustable signal is used to control the trigger, and then there is a trigger to trigger the voltage regulator to achieve the purpose of adjusting the voltage and temperature of the electric furnace.

The temperature distribution in the furnace chamber of the annealing furnace is uniform through the circulation of the fan, and the two furnace chambers of the annealing furnace can run independently, which improves the annealing efficiency, and there are two fans in each furnace chamber, but there is no air filtration device, which is different from the actual situation.

The temperature distribution in the furnace is uniform through fan circulation, and the microstructure of the film material is reconstituted through heat treatment to improve the stability and conversion efficiency. The casting is heated to about 950, and the heat is kept for a certain period of time and then cooled appropriately to eliminate the internal stress of steel castings and weldments. For steel products that begin to form austenite after heating below the temperature of 100 200, after heat preservation and cooling in the air, the internal stress can be eliminated.

Multifunctional annealing furnace.

1. What is annealing furnace: annealing furnace is one of the heat treatment equipment in the machinery industry, the purpose of which is to soften the material or workpiece after casting, forging, welding or cutting, reduce the hardness, improve plasticity and toughness, homogenize the chemical composition, remove residual stress, or obtain the expected physical properties.

2. Annealing furnace principle: annealing furnace is a metal heat treatment process in which metal parts are slowly heated to a certain temperature in different heating furnaces, kept warm for a period of time, and then cooled at a suitable rate (usually natural cooling, sometimes controlled speed cooling).

2. Furnace type of annealing furnace: mesh belt annealing furnace, pit annealing furnace, bell annealing furnace, box annealing furnace, etc.

3. The commonly used annealing processes are: complete annealing. Spheroidized annealing. Isothermal annealing. Recrystallization annealing. Graphitization annealing. Diffusion annealing. Stress relief annealing.

Let me put it simply, the annealing furnace is actually annealing to reduce the hardness of the workpiece, so that it can be easily processed. Its principle is to talk about a metal heat treatment process in which metal parts are slowly heated to a certain temperature in different heating furnaces, kept warm for a period of time, and then cooled at a suitable speed. For details, please check the official website of Sugong electric furnace.

Bell annealing belongs to the bright annealing process, the air in the tank is pumped out before return, nitrogen or inert gas is poured in, and then heated by electricity, how many degrees are burned, how long is kept at how many degrees, and then gradually and naturally cooled, there is a complete set of annealing temperature control curves.

Noble or noble gases refer to the 18 group elements on the periodic table (the new IUPAC regulations, i.e. the original group 0). At room temperature and pressure, they are all colorless and odorless monoatomic gases, which are difficult to carry out chemical reactions. There are six naturally occurring noble gases, namely helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (XE) and radioactive radon (RN).

UUO, on the other hand, is a synthetic noble gas with a very unstable nucleus and a very short half-life. According to the periodic law, UUO is estimated to be more reactive than radon. However, theoretical calculations show that it can be very reactive and not necessarily a noble gas.

However, the carbon group element Fl (formerly tentatively named UUQ) exhibits similar properties to noble gases [1].

Summary. Scope of application of vacuum heat treatment furnace:

It is mainly used for vacuum heat treatment, vacuum brazing and vacuum sintering of high-speed steel, hot and cold work die steel, martensitic stainless steel, elastic alloy, high-temperature alloy, magnetic material and titanium alloy. The furnace is not only suitable for mass production of the same steel grade, but also suitable for multi-specification, multi-variety single piece or small batch production

Scope of application of vacuum annealing furnace:

It is mainly used for vacuum heat treatment of high-speed steel, hot and cold work die steel, stainless steel, elastic alloy, high-temperature alloy, magnetic material and titanium alloy, as well as vacuum brazing, vacuum sintering and bright annealing of stainless steel, annealing of aluminum alloy, etc.

The difference between vacuum screen burning furnace and vacuum annealing furnace.

Scope of application of vacuum limb heat treatment furnace: It is mainly used for vacuum heat treatment, vacuum brazing and vacuum sintering of high-speed steel, hot and cold work die steel, martensitic stainless steel, elastic alloy, high-temperature alloy, magnetic material and titanium alloy. The furnace is not only suitable for mass production of the same steel grade, but also suitable for multi-specification, multi-variety single piece or small batch production

Scope of application of vacuum annealing furnace: It is mainly used for vacuum heat treatment of high-speed steel, hot and cold die steel, stainless steel, elastic alloy, high-temperature alloy, magnetic material and titanium alloy, as well as vacuum brazing, vacuum sintering and stainless steel bright annealing, aluminum alloy annealing, etc.

The annealing and tempering process is to heat the metal material to a certain temperature, and then slowly cool it, and annealing and tempering in a vacuum furnace can ensure that the material will not oxidize and decarburize. The quenching process is to heat up the metal material to a certain rough local temperature, and then quickly cool, the standard vacuum furnace is suitable for vacuum annealing and tempering, vacuum quenching must use a special vacuum quenching Zen furnace.

The temperature is different, vacuum heat treatment furnace, vacuum annealing furnace, vacuum tempering furnace, vacuum quenching furnace, infrared temperature measurement device advantages: 1. Fast response time and high precision; 2. It can continuously measure the temperature for 24 hours when it is bored, safe and durable; 3. Laser aiming, good stability, especially suitable for measuring high temperature small targets millisecond response time and repeatability accuracy, to ensure that you can meet the requirements of fast and accurate temperature measurement. Mainly used in::

1. Quenching temperature measurement 2, forging temperature measurement 3, Huimin fire bending and bending, tempering temperature measurement 4, heating, diathermy temperature measurement 5, aluminum special temperature measurement 6, metal melting temperature measurement.

Structure and principle of tempering furnace:

Ventilator: The ventilator is composed of a blower and a wind deflector, and the blower motor and the heating element have an electrical interlock, and the heating element can only be energized when the blower is connected, so as to ensure that the heating element can work under the condition of ventilation cycle.

Furnace lining: The furnace body part of the whole fiber, the fiber is customized into a module according to the size of the furnace, the fiber is compressed into a block for on-site cotton, and the fixing method is fixed by wearing Xiao and hook nails, that is, evenly wearing Xiao in the block fiber cotton, and then hooking and wearing Xiao with a hook and nail, and welding with the furnace body after tightening. The pressure-resistant part of the trolley is made of high-alumina bricks, and the lower part is insulated with thermal insulation bricks.

The lifting of the furnace door is realized by rolling up and down on the guide rail by rollers, and is sealed by an advanced spring pressing device, which not only ensures the anastomosis between the furnace door fiber and the furnace body fiber when closing, but also ensures that the fiber will not be damaged by friction in the process of opening and closing. The power of the furnace door and the trolley is provided by an electric motor with controllable braking.

Each activity mechanism of the electric furnace adopts interlocking control, that is, the power supply of the heating element is automatically cut off after the furnace door is opened, and the power supply when the trolley is walking is restored at the same time; When the furnace door is closed, the power supply to the trolley traveling motor is automatically cut off, and the power supply of the heating element is restored at the same time to prevent accidents due to misoperation.

The heating element is made of high-temperature resistance alloy wire winding into ribbon and spiral shape, which is hung on the furnace side and the shelving trolley wire brick respectively, and fixed with high-alumina porcelain nails and shelving bricks to prevent it from falling out.

The trolley is equipped with a pressure-resistant and high-temperature cast steel furnace floor to carry the workpiece. In order to prevent the oxide scale generated by the heating of the workpiece from falling around the heating element through the gap between the furnace floor and causing damage to the heating element, the contact between the furnace floor and the furnace body adopts a plug-in contact.