Daily maintenance of trolley annealing furnace

Daily maintenance of trolley annealing furnace

1. The operator should be familiar with the structure and performance of the electric furnace and its auxiliary equipment, the arrangement of the power distribution system, the control system, the location of the safety device, the operating process and the safe operating procedures before maintenance.

2. When using the trolley furnace annealing furnace equipment daily, check whether the power supply of the equipment is normal, whether there is power failure, short circuit or bare wire, etc., regularly check whether the connection of the grounding device is in good contact, and check whether the heating element is damaged. , Whether the contact of each connection is good, whether there is any contact with the furnace body and the cover, check whether the temperature control system is abnormal, and check whether the furnace door lifts and the trolley in and out is normal.

3. Work pieces with corrosive, volatile and explosive gases are strictly prohibited from entering the furnace for processing, so as not to affect the service life of heating elements and refractories and cause explosions.

4. The electric furnace must not run over temperature, otherwise the service life of the equipment will be shortened.

5. Workpieces with too much oxide need to be cleaned before entering the furnace, and can be brushed off with a wire brush.

6. The workpieces are evenly stacked, and the distance from the heating element should be about 100-150mm.

7. Brutal operation is strictly prohibited, and the workpiece should be handled with care to avoid impact.

8. When the electric furnace is in use, the operator shall not leave the post without authorization, and must pay attention to whether the working condition of the electric furnace is normal at any time.

9. When the electric furnace is loading and unloading the workpiece, the heating element power supply must be cut off first to ensure the safety of the operator.

10. Oxide in the furnace should be cleaned frequently, at least once a week or once every five furnaces. Compressed air can be blown under the furnace floor.

11. After the resistance wire is used, it must not be bumped or bent to avoid breaking.

12. Precautions: The electric furnace motor needs to be inspected regularly, adding lubricating oil, etc., pay attention to safety in use, and the drive shaft sleeve must be regularly inspected and lubricated to prevent damage to the shaft sleeve due to lack of oil. Regularly check the use of heating elements. Check the usage of the instrument and thermocouple to prevent incorrect temperature measurement caused by the error of the instrument and thermocouple.

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