Safety technical precautions in the production of vacuum furnace heat treatment are to make various mechanical parts and processing tools obtain good performance. Or in order to make various metal materials easy to process, it is often necessary to change their physical, chemical and mechanical properties, such as magnetism, corrosion resistance, high-temperature oxidation resistance, strength, hardness, plasticity and toughness. This requires that the internal mechanism (structure) of metals and alloys be changed by heating at a certain temperature, holding for a certain time and cooling at a certain speed during machining, so as to change the physical, chemical and mechanical properties of metals and alloys. This method is called heat treatment. During this work, workers often come into contact with equipment and metal parts. Therefore, they must master relevant safety technologies carefully to avoid accidents. Main heating equipment in the heat treatment process the main equipment in the heat treatment process is the heating furnace. Zhengzhou Kejia Electric Furnace Co., Ltd. believes that it can be divided into fuel furnace and electric furnace.
1. Fuel furnace: solid, liquid and gas combustion are used to generate heat source, such as coal furnace, oil furnace and gas furnace. Most of the thermal energy directly generated by combustion is primary energy, which is economic in value and low in consumption, but it is easy to decarbonize and oxidize the workpiece surface. It is commonly used in the heat treatment of heated workpieces and materials, such as tempering, normalizing, annealing and quenching.
2. Electric furnace: take electricity as thermal energy, that is, secondary energy. According to different heating methods, it can be divided into vacuum heat treatment furnace and induction furnace. According to different heating workpieces and materials, different forms of electric heating furnaces shall be equipped according to process requirements.
3. All tools for heat treatment shall be placed in an orderly manner, and cracked and inappropriate tools are not allowed.
4. Do not place anything that hinders operation between heating equipment and cooling equipment.
5. Dangerous areas of equipment (such as power leads, bus bars, conductive rods and transmission mechanisms of electric furnaces, etc.) shall be protected with barbed wire, fences, plates, etc.
6. The entrance and exit of the workshop and the passageway in the workshop shall be free of obstruction. A fire-extinguishing sand box shall be installed near the nozzle of the heavy oil furnace and the nozzle of the gas furnace; Fire extinguishers shall be placed in the workshop.
7. Do not touch the heat-treated workpiece to avoid burns.