The advantages and disadvantages of outside type vacuum heat treatment furnace is analyzed

The advantages and disadvantages of outside type vacuum heat treatment furnace is analyzed

The advantages and disadvantages of vacuum heat treatment furnace is mainly embodied in what respect, zhengzhou branch electric furnace co., LTD., for you to share: outside the advantages of vacuum heat treatment furnace mainly displays in: 1. Simple structure, easy to construct, or use the ordinary heat treatment resistance furnace modification of the original; 2. The vacuum chamber volume smaller, less displacement, furnace tank in addition to the work piece, there are few other need to gas components, and thus put less gas (no insulation panel structure, etc.), easy to achieve high vacuum; 3. Because the electric heating element is in an external heated, there is no vacuum discharge problem; 4. The stove no more mechanical action program, simple operation, low failure, convenient maintenance; 5. Do not contact with lining, high temperature vacuum furnace workpiece in high temperature without the possibility of chemistry; 6. Compared with internal heating type vacuum furnace, because of its simple structure, under the same load, its cost is only part of the internal heating type vacuum furnace 1/2 - a third; From maintenance, service life and reliability evaluation, more practical. But at the same time there are still some defects external heated vacuum heat treatment furnace, mainly displays in: 1. Low heat transfer efficiency of the furnace, heating workpiece slower; 2. The furnace tank material, furnace temperature is generally maintained at below within the range of 1000-1000 ℃; 3. Part of the furnace tank exposed to atmosphere, although you can set the heat shield, but heat loss is still very big; 4. The furnace heat capacity and thermal inertia is very big, control more difficult; 5. The service life of furnace tank is shorter.