Different heat treatment methods of workpieces

The heat treatment process of workpieces can be divided into the whole heat treatment, surface heat treatment, local heat treatment and chemical heat treatment. According to the different heating medium, heating temperature and cooling method, each category can be divided into several different heat treatment processes. Different heat treatment processes can be used for the same metal to obtain different structures and different properties. The whole heat treatment is a metal heat treatment process that heats the whole workpiece and cools it at a proper speed to change its whole mechanical properties. It is recommended that the custom-made steel for aluminum wire age furnace is a widely used metal in industry, and the microstructure of steel is also complex, so there are many kinds of heat treatment processes for steel. There are four basic heat treatment processes of iron and steel: annealing, normalizing, quenching and tempering. According to different process, heat treatment furnace can be divided into annealing furnace, quenching furnace, tempering furnace and other types.

The shell is made of high-quality cold-rolled steel plate, the surface is treated with plastic spraying technology, and the furnace door is of side open layout with sensitive opening and closing. The closed furnace is selected as the medium temperature box furnace, and the electric heating alloy wire is used as the heating element to make the spiral shape, which is surrounded by the four walls of the furnace. The furnace temperature evenly extends the service life when the heat is dissipated. It is recommended that the high temperature combustion tube be selected for the customized high temperature tube resistance furnace of the aluminum wire age furnace, and the silicon carbide rod is used as the heating element in the outer shell of the furnace. The high temperature box type resistance furnace uses the silicon carbon rod as the heating element, which is directly installed in the furnace, with high heat utilization rate. The insulation materials of this series of resistance furnaces use lightweight foam insulation bricks and aluminum silicate fiber cotton to reduce their heat storage and thermal conductivity, resulting in reduced heat storage time, low surface temperature rise, low air loss rate and large power consumption. The controller is divided into: pointer type, digital display type, microcomputer multi band control type.

Why do you say that there are many unsafe factors in industrial furnace? Industrial furnace is a kind of high-temperature equipment, which is closely related to fuel oil, gas, electric energy, dust, etc., and easy to cause fire, burn, explosion, medium, electric shock and other accidents. Therefore, compared with the general cold working equipment, there are many unsafe factors in the industrial furnace. Generally speaking, the high temperature in the operation of industrial furnace is easy to burn, burn and burn; the high temperature molten salt and molten metal will explode when encountering water; gas and controllable atmosphere are explosive gas, oil circuit, oil tank and oil depot are inflammable and explosive facilities, if not used properly, explosion and medium accident will occur; the safety protection device of electric furnace fails, and electric shock will occur after contact; The cyanide in the cyaniding furnace is too strong; the nitrates will ignite when heated above 550 ℃; the nitrates will explode when combined with charcoal and carbon black. It is recommended that the repair environment of the customized industrial furnace for the aluminum wire age furnace is poor. Many repair operations are carried out in the furnace, the space is very crowded, the natural lighting is insufficient, and the ventilation conditions are poor. Workers are not only damaged by dust, but also directly corroded by high temperature, smoke, gas and chemical materials. Some furnaces (such as cupola) are as high as 10m-20m. Due to the narrow furnace body on site, the repair work is a high-altitude three-dimensional cross and multi-layer operation, which is very dangerous.

The high temperature electric furnace produced by our company is designed and produced in strict accordance with the requirements of the national standard (GB / t212). The heating speed, constant temperature and heating time of the high temperature electric furnace are automatically controlled. The new light fire-resistant insulation material is adopted, which has good heat preservation performance and high temperature has no any impact on the control part. The temperature measurement is accurate, fast, low power consumption, self diagnosis of faults, safe and reliable; installation maintenance Simple protection. Wuhan recommends that the aluminum wire aging furnace be customized and regularly checked to see whether the connection between the electric furnace and each connector of the controller is good. The electric furnace and controller must work in the place where the relative humidity is not more than 85%, there is no conductive dust, explosive gas and corrosive gas that can damage the metal insulation and electronic components. The working environment temperature of the controller of Wuhan aluminum wire age furnace is limited to 0-50 ℃. When the electric furnace and the controller are used, the rated power shall not be exceeded, the furnace temperature shall not exceed the service temperature, it is forbidden to put the wet workpiece into the furnace, and the heated workpiece containing ultra-high moisture shall be dried in advance.