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2022-11
What are the safe operating procedures for a vacuum double-action pressurized sintering furnace?
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【Summary Description】Any machine requires regular maintenance and upkeep during operation to ensure it continues serving us effectively—much like the various components of our own bodies, which perform optimally only when carefully cared for. The same principle applies to vacuum double-action pressurized sintering furnaces. That’s why, in this article, we’ll discuss the safe operation of these furnaces. If you’re interested, let’s dive in together—hopefully, this will prove helpful for everyone.
Any machine requires regular maintenance and upkeep during use to ensure it continues serving us effectively—much like the various parts of our own bodies, which can perform at their best only when treated with care and attention. Vacuum Dual-Direction Pressurized Sintering Furnace It’s the same principle, so in this article, let’s talk about the safe operation of a vacuum double-action pressurized sintering furnace. If you’re interested, let’s dive in together! We hope this will be helpful for everyone.
Vacuum Dual-Direction Pressurized Sintering Furnace During operation, first start the water pump to ensure proper circulation of water through the medium-frequency power supply, the vacuum furnace induction coil, and the furnace cooling system. Then, adjust the water pressure to the specified level. Next, inspect the vacuum pump's power system, checking whether the belt pulley is properly tensioned and if the vacuum pump oil is positioned at the centerline of the oil-seal observation window. After these checks, manually rotate the vacuum pump’s belt pulley. If no abnormalities are detected, you may proceed to start the vacuum pump—with the butterfly valve still closed. Finally, thoroughly examine the interior of the vacuum furnace. Ensure the furnace is clean and free of debris, verify that the induction coil has excellent insulation, confirm the vacuum sealing tape is soft and properly sized, and check that the lever handle on the furnace body operates smoothly and reliably. Additionally, verify that the rotating Maxwell vacuum gauge meets all required specifications.
Vacuum Dual-Direction Pressurized Sintering Furnace When in use, ensure that the graphite crucible and furnace accessories are fully assembled. After completing these preparations, turn on the power supply, then switch off the medium-frequency power source. Next, follow the medium-frequency startup procedure to energize the inverter; once successful, stop the inverter before proceeding to ignite the furnace. Before each furnace operation, carefully clean the observation and temperature-measuring port located on the top cover of the vacuum furnace. During loading, adopt the appropriate method tailored to the specific sintering product being processed. Never alter the loading configuration arbitrarily, as this could compromise process consistency. To maintain stable temperatures and minimize heat radiation, two layers of carbon fiber have been added inside the heating crucible, followed by the installation of an insulating shield. Finally, secure everything with vacuum-sealing tape. To initiate the process, gently operate the lever handle to rotate the vacuum furnace’s top cover precisely into alignment with the furnace body, ensuring a tight seal. Once locked into place, slowly open the butterfly valve to evacuate air from the furnace chamber until the desired vacuum level is achieved.
After sintering is complete, stop the frequency conversion by pressing the frequency conversion stop switch. This will deactivate the inverter and disconnect the medium-frequency power supply as well as the main power source. Once you observe that the furnace has turned black through the furnace viewing window, first close the vacuum pump butterfly valve and cut off the vacuum pump's power supply. Then, connect tap water to continue cooling the induction coil and the furnace body, before finally stopping the water pump. Please note that if the medium-frequency voltage reaches 750 volts, there is a risk of electric shock. Throughout the entire operation and inspection process, prioritize safety—never touch the medium-frequency electrical cabinet with your hands.
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