Basic concept of quick change crucible furnace manufacturing process
(1) The phase transition characteristics of metal composite materials under the condition of mechanical pump. Under the mechanical pump with atmospheric pressure only within 0.6 MPa, the thermodynamic and kinetic models of the phase transition of the solid-state disk did not cause any change. The basic principle of the phase transition of the solid-state disk under superheated steam The concept can be used to formulate technical standards for vacuum heat treatment processes. We can refer to the statistics of various tissue transformations under superheated steam.
(2) The degassing effect of the mechanical pump can improve the performance and process performance of the composite material.
(3) Mechanical pump degreasing.
(4) Evaporation of metal composite materials: Under the conditions of mechanical pumps, when the temperature rises, the surface elements of cast iron parts will cause evaporation problems.
Vacuum heat treatment is a combination of two professional skills, vacuum technology and heat treatment technology, which can effectively improve the quality of composite materials and promote the continuous improvement of China's industrial production technology. When metal composite materials are heated in a steam furnace, they will interact with the county steam Co2, water vapor, co2 and other chemical substances undergo exothermic reactions, and the converted compounds will endanger the quality of the composite material, resulting in a decline in the quality of the composite material. The vacuum heat treatment furnace can solve this problem well. In the process of heating metal composite materials , the metal composite material is in a complete mechanical pump geographical environment, and the heat treatment process is carried out under different external geographical environment conditions, which effectively avoids the infiltration of dross and improves the quality of the composite material.
Characteristic Analysis of Quick Change Crucible Furnace for Heat Treatment of Metal Composite Materials
Unusual air-cooled machines and equipment setups
Since the vacuum heat treatment furnace must effectively heat treat the composite material under the condition of a mechanical pump, the temperature of each part of the vacuum heat treatment furnace must be effectively reduced during operation to ensure the safety performance of the mechanical equipment and the trouble-free operation of the mechanical equipment. At present, most of the vacuum heat treatment furnaces in our country use air-cooled mechanical equipment to reduce the temperature of the parts, so that the mechanical pump seal ring of the vacuum heat treatment furnace is not easy to overheat, deform or damage, thus ensuring the trouble-free operation of the vacuum heat treatment furnace and prolonging the use of the vacuum heat treatment furnace life.
High quality sealing performance
High-quality airtightness is an important feature of the vacuum heat treatment furnace. Only by ensuring the airtightness of the furnace can the contact between the composite material and the oxidizing compound in the outside air be reduced, thereby effectively improving the quality of the composite material. During the design process, In order to ensure the mechanical pump characteristics of the vacuum heat treatment furnace, the vacuum heat treatment furnace often has to undergo harsh manufacturing processes, such as airtight electric welding of the furnace wall, and the furnace wall of the vacuum heat treatment furnace should not be opened as much as possible to reduce the chance of steam infiltration. In addition , Other prefabricated parts of the furnace wall of the vacuum heat treatment furnace should be strictly sealed to improve the overall sealing of the vacuum heat treatment furnace.
