Resistance furnace meets new challenges

Li Wentao et al. The design of the resistance furnace intelligent temperature controller based on the stm single-chip microcomputer 9 The design of the resistance furnace intelligent temperature controller based on the stm single-chip microcomputer Li Wentao Yu Fubing (Inner Mongolia Science and Technology University Information Engineering College, Baotou, Inner Mongolia) The resistance furnace temperature control strategy uses a k-type thermocouple temperature sensor and a max digital conversion chip to form a temperature measurement circuit. Based on the above benefits of the RS interface standard, this system adopts the RS communication interface. 31 The lead rod is made of the same composition as the resistance wire. The diameter of the lead rod is not less than three times the diameter of the resistance wire. When connecting the power supply, the phase line and the neutral line must not be reversed, otherwise it will affect the normal operation of the temperature controller, and there will be a risk of electric shock. In order to ensure safe operation, the temperature controller housing must be reliably grounded.

The ssr solid state relay is used as an executive element to realize the intelligent control of the temperature of the resistance furnace. When changing, first remove the maintenance cover at both ends and the silicon carbide rod chuck, and then take out the damaged silicon carbide rod. Because the silicon carbide rod is fragile, be careful when assembling. Solid, make it come into contact with the silicon carbide rod brilliantly. The thermal inertia of the furnace is small, the heating and cooling process cycle is short, the thermal efficiency is high, and the production efficiency is also high. All high-temperature furnaces are equipped with a temperature controller, and the thermocouple used for operating temperature measurement indicates and regulates and automatically controls the temperature of the high-temperature furnace. Third, determine the structure and size of the furnace body. The lower display window displays the given value sv alarm code parameter value and so on. In this way, the power of each electric heating element will not be too large, and it is convenient to adjust the furnace temperature and maintain its uniformity. At the same time, the size of the electric heating element can be in the most commonly used scale. The masonry at the corners of the furnace wall must be in contact with each other.

Wanfang Data Issue No. Li Wentao et al. The design of the resistance furnace intelligent temperature controller based on stm single-chip microcomputer 9lcd adopts. Inch tft true color touch screen module, the color screen module is equipped with an ads touch control chip, which adopts fsmc control, which can realize true color display. For example, the silicon carbide heating element is easy to age during use, and the resistance value increases with the increase of the time of use. The same heating voltage will reduce the working temperature of the furnace. With the further acceleration of the development of new products, the analysis of samples has higher and higher temperature requirements. The instrument uses the operation panel function set: function key ut output indication v window measurement value sv window setting value alm upper limit alarm alm lower limit alarm shift key ∨ minus key ∧ plus key atal auto-tuning popular operation style turn on the power and turn on the instrument switch and press ↑ Press the key for two seconds to make the sv window appear st pause.

Initialize the display module button detection module control algorithm communication interface control output stm initialization parameter initialization upper limit alarm lower limit alarm fault alarm fall-shaped thyristor output software structure frame In order to accurately obtain the current realistic temperature of the resistance furnace, read the max measurement function Taking it becomes a crucial step. The measurement of vacuum adopts thermocouple vacuum gauge and ionization vacuum gauge. The power supply voltage is normal, but the working voltage of the electric furnace is low. The reason is that the voltage drop of the power supply line is too large or the socket and the control switch are not well contacted, which can be adjusted and changed. q walls scattered q walls f walls are all. 39. The heating time of the empty furnace is the time required to heat the hydrogen furnace without charge from the situation temperature to the test temperature according to the heating procedure in the product technology premise. p Storage Shengan For the general cycle homework furnace, the empty furnace heating time can be within hours, so the furnace design is suitable for requirements. The equipment is composed of furnace body, idea transmission mechanism, temperature control and so on. To this end, it has been refreshed. The furnace door is built with a ring structure. The heavy high aluminum material that needs to be processed and the furnace frame panel are sealed with mm-thick refractory fiber felt to modify the special-shaped wedge-shaped structure. Instead, both sides use heavy vertical wedge-shaped bricks to ensure the post-construction structure like 1.