Safe use of hot air circulation oven and four key points to note

The hot air circulation oven is composed of angle steel, stainless steel plate, and cold steel plate. The insulation layer is filled with high-density aluminum silicate cotton, which ensures the insulation of the drying oven and the safety of the user. The installation position of the heater can be at the bottom, top, or both sides. Use digital intelligent instruments to control temperature. There are two types of air duct designs for hot air circulation ovens: horizontal air supply and vertical air supply!

Product features: The outer shell is made of high-quality cold-rolled steel plate, and the surface is treated with electrostatic spraying technology. It has a novel appearance and is sturdy and durable. The studio is made of high-quality stainless steel plates or cold-rolled steel plates, which have the advantages of high temperature resistance, corrosion resistance, and no black smoke. The movable pull-out grid frame increases the storage space for materials inside the box, and the middle of the box door is equipped with a double-layer tempered glass observation window, which can observe the condition of heated items in the studio at any time. Hot air circulation oven is a device that uses electric heating wire layers to heat and dry objects.

It is suitable for baking, drying, heat treatment, etc. in the range of 5-300 ℃ (some up to 200 ℃) above room temperature, with a sensitivity usually of ± 1 ℃. There are many models of it, but the basic structure is similar, generally consisting of a box, an electric heating system, and an automatic temperature control system. The usage and precautions are summarized as follows:

1. The hot air circulation oven must be placed indoors in a dry and level place to prevent vibration and corrosion.

2. Attention should be paid to safe electricity use, and a power switch with sufficient capacity should be installed according to the power consumption of the hot air circulation oven. Select sufficient power conductors and have good grounding wires.

3. For temperature controllers with electric contact mercury thermometers, the two wires of the electric contact thermometer should be connected to the two terminal posts on the top of the box. Insert another ordinary mercury thermometer into the exhaust valve (the thermometer in the exhaust valve is used to calibrate the electric contact mercury thermometer and observe the actual temperature inside the box), and open the hole of the exhaust valve. Adjust the mercury thermometer to the desired temperature and tighten the screws on the steel cap to achieve constant temperature. But it must be noted not to turn the indicator iron outside the scale when adjusting.

4. After all preparations are ready, the test sample can be placed in the hot air circulation oven, and then connected and powered on. The red indicator light is on to indicate that the box has been heated. When the temperature reaches the controlled temperature, the red light goes out and the green light comes on, and the constant temperature starts. To prevent temperature control failure, it is also necessary to take care of it.