The use of vacuum sintering furnace skills
Oct 18,2024
After the vacuum sintering furnace is vacuumed, under the protection of hydrogen charging, the tungsten in the coil is made into high temperature by using the principle of intermediate frequency induction heating, and is transferred to work through heat radiation. Suitable for powder molding and sintering of tungsten, molybdenum and their alloys. The place where the electric furnace is installed must meet the requirements of vacuum hygiene, the surrounding air must be clean and dry, well ventilated, and the workshop is not easy to produce dust. Next, let's learn about the use technology of the vacuum sintering furnace.
Daily use technology of vacuum sintering furnace:
Verify that all components and accessories in the control cabinet are complete and undamaged. The control cabinet is installed on the corresponding foundation and fixed. Follow the wiring diagram and connect the external main circuit and control circuit with reference to the electrical schematic diagram to ensure that the wiring is correct and reliably grounded. Check the mobile part of the home appliance to move freely, not without the phenomenon of stuck. Insulation resistance shall be above 2 trillion ohms. The valves of the vacuum furnace must be in the closed position. Place the power switch in the off position. Turn the manual adjustment handle counterclockwise. Put the alarm button back in place. It is recommended to complete the circulating cooling water connection of the equipment according to the plan, and reconnect the replacement water (available tap water) in the main inlet and outlet pipes of the equipment to prevent the failure of the circulating water or power failure from causing the sealing ring to burn.
When using a vacuum sintering furnace, pay special attention to the following points:
The mold is generally owned by the user, so the mold material basically selects high-purity graphite, the internal pressure limit is 40MPa, and it is relatively safe below 30MPa. It is recommended to calculate the upper and lower stamping area of the mold before applying pressure, and then convert it into pressure. The following formula: Allowable pressure (tons) = upper and lower stamping area 30MPa When the thermocouple is used as a tungsten type, it will become brittle and cannot be contacted. In case of damage, it should be replaced in time. That model is W2. In winter, we should pay attention to the insulation of circulating water. Otherwise the water pipe is easy to break.
After use, the furnace body should be kept in vacuum, and the insulation layer in the furnace is easy to get damp. If the vacuum is saved, the next vacuum will be faster. Because the equipment is more complicated, there must be equipment use regulations, including professional use, professional responsibility, pre-use training for novices, post-use inspection, operation and use records, etc. This kind of hot press can also be used as a vacuum sintering furnace. When using it in a vacuum sintering furnace, please pay attention to placing tungsten in the furnace. After covering the insulation screen, don't forget to cover the small lid in the middle. (William Shakespeare, window, vacuum sintering road, vacuum sintering road, vacuum sintering road, vacuum sintering road) otherwise it is easy to burn electric furnace.
Before operation, clean the window glass, clean the inner wall of the furnace, observe the water pressure, observe whether the graphite in the furnace is damaged, check whether the instrument is normal after power on, and test whether the hydraulic system is working normally. After using the electric furnace for one year, the instrument should be sent to the measurement department for calibration. This is the use of vacuum sintering furnace skills. For more information, please feel free to contact us.
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