Medium Frequency Induction Melting Furnace

The working frequency of IF induction smelting furnace is between 50 Hz and 10 kHz, which needs frequency modulation by frequency converter. Medium frequency induction smelting furnace has more advantages than power frequency induction smelting furnace because of its high electric and thermal efficiency, short smelting time, less power consumption, less land occupation, lower investment, flexible production and easy implementation of process automation. It is suitable for smelting all kinds of cast iron, especially alloy cast iron, nodular cast iron and vermicular cast iron. It has strong adaptability to burden, and the variety and size of burden can be changed in a wide range. Medium frequency induction smelting furnace has the advantages that other iron smelting furnaces do not have, so it has gained remarkable development in recent years, and has been widely used in cast iron production.

With the continuous improvement of power density of medium frequency induction smelting furnace, the requirement of safety, lining life and noise is becoming higher and higher, and the rationality of furnace body structure is becoming more and more important. Heavy steel shell furnace has many advantages such as strong durability, high efficiency and productivity, low noise, easy maintenance and repair.

Heavy-duty steel shell furnace is different from frame furnace. It has a high strength annular steel shell with several large checkpoints. When the furnace is running, the checkpoints are closed and each checkpoint can be opened. The internal structure of heavy-duty steel shell furnace is strong, which can avoid the deformation that may be caused by tapping and pouring, and prolong the service life of furnace lining. Moreover, the sound absorption and isolation material can be added to the enclosed solid steel shell and its interior, which greatly reduces the working noise. The strong steel shell can also effectively protect the induction coil from the danger of splashing metal, so that the furnace has the greatest safety in operation. In order to effectively insulate and heat preservation and prolong the life of lining, cooling rings are installed at the top and bottom of heavy-duty steel shell furnace, which plays the role of uniform lining temperature and reducing thermal expansion. The stainless steel cooling ring with low energy consumption and high strength greatly improves the furnace efficiency.

Lab Vacuum Furnaces

Vacuum Graphitizing Furnace And Carbonization Furnace

Safety Characteristics of Vacuum Furnace

Vacuum furnace heat treatment is a comprehensive technology combining vacuum technology and heat treatment. It refers to all and part of the heat treatment process carried out in vacuum. China divides vacuum into low, medium, high and ultra-high vacuum. At present, the working vacuum of most vacuum heat treatment furnaces ranges from 1.33 to 1.33 x 10 Pa.

Vacuum heat treatment can achieve almost all heat treatment processes, such as quenching, annealing, tempering, carburizing, nitriding, gas quenching, oil quenching, nitrate quenching, water quenching, vacuum brazing, sintering, surface treatment and so on. Vacuum heat treatment furnace has high thermal efficiency, can achieve rapid heating and cooling, can achieve no oxidation, no decarbonization, no carburization, can remove the phosphorus chip on the surface of the workpiece, and has the function of degreasing and degassing, so as to achieve the effect of surface bright purification.

Generally speaking, the processed workpiece is heated slowly in the furnace, the difference of internal heat temperature is small, and the thermal stress is small, so the deformation is small. The qualified rate of products is high. The utility model can reduce the cost and has the function of degassing, thereby improving the mechanical performance and service life of the work. Good working environment, safe operation, no pollution and pollution. The treated workpiece has no danger of hydrogen embrittlement. It can prevent surface hydrogen embrittlement of titanium and refractory metal shell. The vacuum heat treatment process has good stability and repeatability. This series of advantages, the development of vacuum heat treatment equipment and process has been more and more attention and application.

Vacuum Brazing Furnace

Vacuum Induction Melting Furnaces

Production and Operation Flow of Vacuum Furnace

Work in the production workshop needs to be done with great care. A little carelessness will have inestimable consequences for life and safety. Especially in industrial production, we all know that Luoyang Kiln Factory is a big factory. The teachers in the experimental electric furnace, high temperature electric furnace, tubular furnace and vacuum furnace are trained and possessed before they go on duty. Certain experience shows the rigor of the production process, so what can be done to minimize the danger point in the specific operation of the vacuum furnace?

Every master of vacuum furnace knows how to start the power supply of vacuum furnace and set the switch of control cabinet at the position of automatic control. The parameters of the vacuum furnace process regulations are input into the computer. The workpiece is then smoothly fed into the furnace with a loading trolley, and the door (cover) is closed and locked to ensure sealing.

The cooling medium, cooling mode and pressure of vacuum furnace should be selected according to the technological requirements. Press the cycle start button, and the equipment executes the program: vacuum heating cooling is automatically completed. Remember to always check whether the equipment system is working properly, and report any abnormalities to the foreman in time. Before discharging, the normal pressure in the furnace should be restored, and the door (cover) should be opened after the indicator lamp is normal. When discharging, careful operation should be taken. No workpiece or tooling should collide with the furnace mouth.

Vacuum Debinding & Sintering Furnace

Vacuum Heat Treatment Furnaces

Vacuum Steam Quenching Furnace Characteristics

Vacuum quenching furnace is composed of heating furnace cover and movable chassis. It is a very advanced vacuum heat treatment equipment at present. Its excellent performance and unique design provide a wide range of vacuum bright gas quenching, annealing and magnetic materials for high precision parts of alloy materials such as high speed steel, die steel, stainless steel, alloy steel and titanium alloy. Sintering and rapid cooling of materials.

Equipment characteristics of vacuum quenching furnace:

(1) Temperature uniformity

The temperature uniformity required by users is achieved by circulating fan, air guide cover plate, furnace structure and electrothermal power.

Distribution and layout of electrothermal components, control mode and process, furnace door structure and other related design to ensure.

(2) Advanced mechanical systems

The advanced nature of the system is guaranteed by design, component selection and quality, and processing and manufacturing quality. The mechanical system runs smoothly and reliably, and the equipment is in low noise and low vibration state.

(3) Perfect control system

The system is stable and reliable, easy to operate, avoiding artificial misoperation, complete functions and so on.

(4) Quick and adjustable quenching transfer time

The double-speed lifting mechanism and advanced mechanical system make quenching transfer fast and reliable, and the time can be adjusted according to user's technological requirements.

Вакуумная печь для спекания

Вакуумная паяльная печь

Вакуумная термообработка

Vacuum Quenching Furnace Maintenance

After shutdown of the vacuum quenching furnace, the vacuum in the furnace should be kept below 66.5 LPA.

When the furnace is dusty or unclean, use alcohol or gasoline soaked silk cloth to wipe clean and dry it.

When disassembling and assembling parts such as sealing structure and vacuum system on the furnace body, clean them with alcohol or gasoline and dry them, then coat them with vacuum grease and assemble them.

The outside surface of vacuum quenching furnace is often wiped, and its operation is clean and clean.

Parts and parts trucks need to be cleaned and dried before they can enter the furnace to prevent moisture and dirt from entering the furnace.

When the transmission parts are found to be jammed, inaccurate limit and control failure, they should be queued immediately and not be forced to operate so as to avoid damaging the parts. Aluminum plate spot welding machine mechanical transmission parts should be regularly refuelled or replaced for maintenance.

Vacuum pumps, valves, measuring instruments, thermal instrumentation, electrical components and other accessories are maintained and maintained according to the technical specifications of the products.

Maintenance operation should be carried out in case of power failure. In the case of live maintenance, we must ensure the absolute safety of people and equipment.

Vacuum-Oil-Quenching-Furnace-for-alloy-structure-steel

Titanium-alloy-vacuum-melting-induction-furnace-price

Вакуумная закалка пресс-форма

Vacuum Annealing Furnace Characteristics

Vacuum annealing furnace is composed of two fixed hearth and a fixed furnace body at one end of 14 meters and a movable heating cover. The fixed hearth bears the vacuum muffle tank. The workpiece is heated in the vacuum muffle tank. The furnace temperature uniformity is higher (< 10 C); the all-fiber energy-saving lining can save more than 30% energy compared with the composite brick lining.

The movable hood is equipped with one end and vacuum muffle tank sealed fixed furnace door, the fixed furnace body is equipped with one end and vacuum muffle tank sealed fixed furnace door, the other end is open type, and has a sealing device, so that when combined with the movable hood and the furnace mouth are sealed firmly and reliably and naturally sealed. The side knife type soft seal is used between the hearth and the hood. The side knife of the hearth is inserted into the fiber of the hood when the hood enters the furnace, which makes the sealing between the hearth and the outside of the furnace adiabatic and simple and reliable. Roller grooves are arranged on the load-bearing base of muffle tank, and load-bearing rollers are placed in the groove, so that the muffle tank can move forward and backward freely when it expands and contracts.

A strong cooling fan and pipeline are installed at the end of the hearth, which can speed up the cooling speed after the heating process of muffle tank and improve the utilization rate of the furnace. Intelligent temperature program control system with high precision adopts Fuji high precision PID intelligent temperature control instrument. The program of heating and insulation can be set by itself, and the working condition of each zone can be controlled automatically by program. The temperature record adopts medium and long drawing with paper recorder, which can record the working condition of each zone of the furnace synchronously. This type has intuition. The temperature measurement and control points are set at the bottom and top of the furnace to control the furnace temperature balance within the allowable range, reduce the deformation of muffle tank during heating and cooling, prolong the service life of muffle tank and facilitate operation. The equipment has high degree of automation, safe and reliable operation, long service life and convenient operation and maintenance.

Sintering-of-Metal-Powder-in-Vacuum-Furnace

Vacuum-Arc-Furnace-for-Bearing-Steel-Smelting

Промышленные вакуумные печи

Vacuum Gas Quenching Furnace Application

Usage and Characteristics: Mainly used in high-pressure gas quenching of high-speed steel, tool steel, die steel, alloy structural steel and other materials. It can also be used for brazing stainless steel at high temperature, solid solution, sintering and aging of powder materials, etc. Traditional horizontal single chamber furnace has mature structure, simple overall maintenance and high performance-price ratio.

Configuration Options: Inflation Pressure Selection: 0.6/1.0/1.5 MPa Special Material Process with Low Temperature Convection Heating Device; Low Pressure Control Device to meet the special atmospheric process requirements (such as inhibiting the volatilization of alloy elements); High Temperature Metal (Nickel Chromium, Molybdenum)/Graphite Material Heating System Selection to facilitate different temperatures or material process requirements According to the material and process requirements, the high vacuum/medium vacuum configuration can be chosen freely.

Steel-Wire-Annealing-Furnace

Electric-Resistance-Heating-Vaccum-Bright-Annealing-Furnace