Yinchuan Box type Resistance Furnace (Integrated Programming)The working principle is divided into the following steps:

① The principle of automatic control of muffle furnace temperature: Based on the deviation of the furnace temperature from the given temperature, the heat source energy supplied to the furnace is automatically turned on or off, or the size of the heat source energy is continuously changed to stabilize the furnace temperature within a given temperature range, in order to meet the needs of the heat treatment process. The commonly used adjustment rules for temperature automatic control include two position, three position, proportional, proportional integral, and proportional integral derivative. Resistance furnace temperature control is a feedback regulation process that compares the actual furnace temperature with the required furnace temperature to obtain a deviation. By processing the deviation, a control signal is obtained to adjust the thermal power of the resistance furnace, thereby achieving temperature control. PID control, which generates control effects based on the proportion, integration, and differentiation of deviations, is a widely used form of control in process control.

② When the muffle furnace starts to heat up, the bricks inside the furnace absorb a large amount of heat to increase their own temperature. When the furnace is stopped and cooled down, this part of the heat is dissipated into the space; This part forms the heat storage loss of the furnace body. An electric furnace should have low empty furnace loss and high effective power. Less heat storage loss. The size of empty furnace loss is an important indicator for measuring the efficiency of electric furnaces. Electric furnaces with small empty furnace loss can achieve high technical productivity and low unit energy consumption ratio.

③ For example, the muffle furnace system software is programmed using interrupt mode, mainly consisting of clock interrupt program, input processing program, control algorithm program, display processing, output processing, and self diagnostic program. After the instrument is powered on and started, the initialization program sets the time and interrupts the clock every 500ms. After the interrupt, it enters the clock interrupt processing. For pure lag and large inertia control objects, the integral separation PID control algorithm is generally used.

④ The main purpose of industrial muffle furnace is to provide heating for raw materials, blanks, and mechanical components in the machinery industry. Heating of billets before rolling and heating of forgings. Heat treatment of mechanical components and semi-finished products to improve their mechanical properties, such as rod quenching, tempering, annealing, normalizing, gas carburizing, nitriding, etc. It is also used for sintering, brazing, and some resistance furnaces are used for melting low melting point metals and heating in the ceramic glass industry.

Specification parameters:

Furnace specifications:

Yinchuan Box type Resistance Furnace (Integrated Programming)Special furnace dimensions can be customized according to customer requirements!

Reasons and solutions for temperature control faults in ceramic muffle furnaces

Temperature shows equilibrium solid

reason:

1. Poor contact of thermocouple grid;

2. Thermocouples have intermittent short circuits or road trips;

3. Thermocouples have intermittent grounding;

4. The status of thermocouples has been constantly changing;

5. Compensate for grounding, intermittent short circuit or road robbery of the wire;

6. Temperature display measuring tool malfunction;

Solution:

1. Reconnect the thermocouple;

2. Review thermocouples to eliminate fault points or replace them;

3. Eliminate contact points;

4. Flow good thermocouples;

5. Review and repair wires to eliminate fault points;

6. Repair or replace the temperature display meter;