What should be paid attention to when using the oven
Published:
2022-03-07
The current ovens use electric heating devices, but the basic structure is similar. The ovens must be placed in a dry and horizontal position to avoid vibration and corrosion. Pay attention to the safe use of electricity. According to the energy consumption of the ovens, install power blades with sufficient capacity, use sufficient power lines and use good grounding wires. Because of the ovens that contact the mercury thermometer thermostat, the two wires that contact the thermometer electrically must be connected to the top of the oven. In addition, insert an ordinary mercury thermometer into the exhaust valve. The thermometer on the exhaust valve is used to check the opening of the mercury electrical contact thermometer and the exhaust valve to observe the actual temperature in the oven. Set the electrical contact mercury thermometer to the desired temperature, and tighten the screws of the steel cap to achieve the purpose of constant temperature. However, when adjusting, be careful not to close the scale indicator. When placing the sample, The upward flow of hot air must be considered. When it is necessary to observe the sample in the working chamber, open the outer door and look through the glass door, but open the door as little as possible to avoid affecting the constant temperature.
In addition, insert an ordinary mercury thermometer into the exhaust valve. The thermometer on the exhaust valve is used to check the opening of the mercury electrical contact thermometer and the exhaust valve to observe the actual temperature in the oven. Set the electrical contact mercury thermometer to the desired temperature, and tighten the screws of the steel cap to achieve the purpose of constant temperature. However, when adjusting, be careful not to close the scale indicator. When placing the sample, The upward flow of hot air must be considered. When it is necessary to observe the sample in the working chamber, open the outer door and look through the glass door, but open the door as little as possible to avoid affecting the constant temperature.
During the use of the oven, the blower must be turned on during heating and constant temperature, otherwise it will affect the temperature uniformity of the studio and damage the heating elements. The feed must be cut in time to ensure safety, keep the interior and exterior of the oven clean, and the temperature should not exceed the operating temperature of the oven. In order to avoid scalding, please use special tools when handling samples. At present, most industrial hot air circulation ovens, It is an unorganized emission system under positive pressure. These systems are serious for smoking and difficult to collect.
With the trend of strict control and strict control of volatile and organic compounds in key industries, combustion gas can only pass under negative pressure. Large ovens are mainly used for the heat treatment process of large parts. Due to the large volume of the oven body, the assembly structure is assembled, assembled in the factory, and assembled on the table for users to use.
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