TUBE FURNACE

1, the maximum use temperature of electric furnace: 1300 degrees; Heating element: U-type silicon carbon rod (model: 20-400-250-50); Control accuracy ±1 degree; Thermocouple index number: S; Electric furnace with 8-channel digital display paperless recorder; Electric furnace has track, can move; Heating zone length 7500mm, furnace temperature uniform zone length 6500mm, uniform zone temperature uniformity ±8 degrees Celsius; Power 180KW; Voltage 380V;

2, the overall size of the electric furnace body: length 8500mm, width 1400mm, height 1800mm; The outline size of the electrical control cabinet is about 600mm long, 1400mm wide and 1700mm high.

3, furnace structure, the appearance of the electric furnace with high temperature spray plastic, temperature resistance, oxidation resistance, acid and alkali resistance; Exquisite two-color collocation is more generous, delicate and beautiful appearance; The shell is made of national standard Angle steel and cold-rolled plate, and is made of double-layer shell, isolated inside and outside, air-cooled structure, and the outer temperature is not more than 40℃; The furnace body is made of national standard Angle steel and cold-rolled plate, and the machine bed is refined to ensure a better sealing effect. Each section of the furnace body is installed under the moving wheel, the moving wheel on the track to ensure the linear movement of the furnace, the total length of the track (a total of five sections) is 15mm, removable; The furnace body is connected with a screw connection and an auxiliary buckle lock; Guide bearings are installed outside the first and tail sections of the electric furnace body to facilitate better installation of the furnace tube, and the furnace structure is designed to be lengthened in the future and reserved for the later transformation of the electric furnace.

4, electrical control part; Microcomputer control is easy to operate, programmable, PID self-tuning, automatic heating, automatic heat preservation, automatic cooling, no need to be on duty; Each instrument is connected with a paperless recorder to record the heating and cooling data of each instrument from time to time. The heating rate can reach 1300 degrees in the fastest 4 hours. The heating rate is adjustable from 1℃/h-15℃/min. The electric furnace adopts seven sets of control electric furnaces, one main control instrument, six sub-control instruments, and seven sets of control electric furnaces communicate with each other to ensure the consistency of the heating curve of electric furnaces. The electrical circuit adopts integrated circuit and module control; Double circuit protection (partial temperature protection, ultra-high temperature protection, break pair protection, overcurrent protection, overpressure protection, etc.) electric furnace work more stable and reliable; Two sets of spare control space are available in the electric control cabinet

5, the electric furnace cooling control: the electric furnace interior design rapid cooling device, to ensure that the electric furnace in the workpiece full load, in 12 hours from 1200 degrees to 70 degrees, and can be programmed control! There is no paper recorder to record the cooling curve;

6, heating element layout; The heating zones of the first and last sections are 1.7m long and each section has 24 U-shaped silicon carbon rods; The central five sections are heated with each section 800mm long and each section has 12 U-shaped silicon carbon rods; Total: 108 pieces;

7, refractory materials and furnace structure, furnace adopts double-layer heat insulation, furnace adopts imported alumina fiber as insulation layer energy-saving effect is 60% of the old electric furnace; The bottom of the furnace and supporting materials are made of heavy refractory materials, anti-wear, high temperature resistance, bearing effect is excellent, to ensure that the electric furnace is more than 2500kg in total! The furnace is made of light firebrick; Alumina fiber is used for furnace wall and furnace top; Made of lightweight high-purity refractory interlocking assembly, reasonable and stable structure, high temperature resistance, cold and heat resistance, no crack, no crystallization, no slag, no pollution; The furnace body interface is made of high density and high temperature knitted blanket to supplement the sealing;

8. The outer body of the furnace of the cooling (air cooling) mechanism is air-cooled around the axial flow fan; There are 4 air ducts in the furnace; Exhaust seal cone type device is provided in the exhaust port of the electric furnace, and valve is provided in the intake port! The exhaust port of the electric furnace is provided with a flange, which is convenient for the user to connect the pipe and remove the hot air and waste from the outside; The exhaust port is 1200mm higher than the electric furnace; Air duct pipe material, the outlet pipe is made of 316L material, the external flange is made of 304 material, and the interior of the furnace is made of 310S stainless steel tube and plate; The air-cooled air source has a centrifugal high-pressure blower, and the air inlet and outlet of the fan are provided with an air impurity filter; Air volume: 5 ~ 609m3/h adjustable; Noise less than 90 dB!!

9, paperless recorder technical indicators one to eight channels, program control curve up to 100 sections of paperless recorder. The instrument input is a fully switched universal input, input thermocouple, thermal resistance, standard current and other signals, can provide feed output. And the use of modern USB interface technology, the data is directly stored in the U disk, recording time is longer. Paperless recorder has powerful display functions, such as real-time trend curve display, large character digital display, historical curve recall, out-of-limit alarm, alarm status display, and intelligent automatic playback of historical trend, which is very convenient to find alarm points, and provides positioning playback function, which can directly query the data of a year, month, day, hour, minute and second, convenient and fast.