1. Pull out bad furnace, at the bottom of the flat is clean;
2. Whether the rear terminal is in good condition, with appropriate wrench tight fixed terminal damaged if there is any need to change;
3. The oven door and the chamber of a stove or furnace outlet processing level, cuddled up together into the furnace chamber and the oven door, the outlet with high temperature mud seal;
4. The chamber of a stove or furnace with cotton blanket wrapped up, both sides brick clamping, on both sides of the chamber of a stove or furnace cannot move.
5. The six tail heating wire connected to the tail on the terminal, use screw heat wire and heat wire to have certain space between and put each wire wrapped cotton can't contact with shell cause short circuit;
6. After the tail with light brick clamping, carefully when cotton, at the end of the plug to prevent plug off heat wire;
7. Wiring before commissioning the multimeter ohm measuring whether A, B, C three line resistance, and shell does short circuit;
8. Press the heating switches, heating indicator with a multimeter ACV250 or 750 gear, a furnace metal shell, pens and contact a pens and hand measurement meter check whether leakage, if there is any leakage to check the heat wire connection position;
Box-type furnace operation procedures
(1) the equipment check: before blowing in response to a device to make a comprehensive inspection, check the electric control box for tools or other conductive material, when we have forgotten the artifact exists in the furnace should keep clear of in time, especially the terminal of electric heating element, must ensure that no loose phenomenon, the security guard must be complete and effective. Responsible for electrical and instrument checks should have personnel, when confirm the equipment without any hidden trouble, xu furnace work.
(2) the fire starting: to the temperature control of the temperature control meter to indicate the location of the digital temperature adjustment to the technological requirements, and then through equipment total power switch, switch on instrument and heating furnace, the furnace heating up to the process temperature. To process temperature after heating furnace temperature according to the school with the requirements of technical regulations for temperature measuring school. Adjust the instrument temperature, note: table = temperature furnace temperature - revised.
(3) furnace charging: according to the structural characteristics of parts and batch size, furnace charging quantity is different. Furnace charging quantity determined according to the size of the effective heating area.
(4), box-type furnace according to the technological requirements fully released after heat preservation. Power on operation should pay attention to cut off the heater and remove furnace parts to prevent burns and other accidents.
(source: China kiln network)