Atmosphere furnace is widely used in the early experiments of laboratories, industrial and mining enterprises and scientific research institutions. There are three types of atmosphere: reducing atmosphere, inert atmosphere and hydrogen nitrogen mixed atmosphere. The rated temperature is 1100 ℃, 1400 ℃, 1500 ℃ and 1650 ℃ respectively. According to different atmosphere and different temperature, different heating elements are used, with complete models, safety and reliability. At the same time, it can also meet the requirements of different process experiments And special manufacturing.
Whether the structural design of the box type atmosphere furnace is right or not
The box type atmosphere furnace is a new type of electric furnace with high performance and energy saving, which is developed by ourselves with resistance wire as the heating element and international advanced technology. It adopts energy-saving ceramic fiber material and double-layer structure, which can reduce the surface temperature to normal temperature and make the temperature distribution in the inner cavity uniform. The multi-stage intelligent program controller is used to control the temperature automatically in the whole process, with high comprehensive performance index, which is at the domestic level.
The heating resistance wire of the box type atmosphere furnace is placed in the ceramic fiber, and the heating is even. The furnace shell adopts double-layer structure, which can reduce the external temperature to normal temperature and make the temperature distribution in the inner cavity uniform. The input wiring is provided with a special safe junction box at the back of the electric furnace. The power switch is located on the right side of the electric furnace, which is convenient for operation. The furnace door is equipped with a safety lock system for opening and cutting off the heating. There are programmable control instrument, ammeter, knob switch, audible and visual alarm on the electrical panel.
The box type atmosphere furnace is made of mullite poly light and aluminum silicate fiber materials. The upper and lower parts of the furnace are covered with silicon carbide shed plates. The temperature in the furnace is that the heating elements pass through the silicon carbide shed plates during the heating process. The temperature is more uniform and the furnace shell is fully sealed. In order to improve the service life of the gasket, a circulating water-cooling sleeve is arranged at the door of the furnace to reduce the temperature of the seal. The air inlet is set at the top of the furnace. After preheating by the heating chamber, it enters the furnace in several places. The exhaust gas is discharged through the back of the furnace bottom. A regulating valve is installed for the switch of the exhaust port. A gas flow meter is installed on the gas path to control the gas flow in normal use. Equipped with a micro pressure gauge to check whether the electric furnace leaks. There is a water outlet at the furnace mouth, which is used to discharge the water produced in the process of inflation and temperature rise in the furnace.
The electrical part of the box type atmosphere furnace adopts the integrated structure with the furnace body, and the entire electrical components are installed on one side of the bottom of the furnace body, with compact structure and small space occupation. The temperature control device is installed on the side panel of the furnace body. It is intuitive to observe and convenient to adjust. The temperature controller has PID adjustment function, can automatically track and set the best PID value, can arbitrarily set the graduation code for measurement, and has compensation function, which can make the furnace temperature consistent with the displayed value. The temperature control mode adopts German Siemens technology, with soft start, soft shut-off, silicon controlled phase-shift voltage regulation control, 0-98% transmission The output can be adjusted, and various instrument switches on the panel have corresponding Chinese signs.
On 2018-08-08 11:45:46
