Vacuum atmosphere heat treatment furnace cannot be evacuated
07-14-2025 Author: KJ technology
The inability to vacuum up the vacuum atmosphere heat treatment furnace may be caused by vacuum pump failure, aging or damaged seals, pipeline leaks, internal contamination of the vacuum furnace, oil problems with the vacuum pump, control system failures, and other reasons. The following are specific analysis and solutions:
1. Vacuum pump malfunction
Possible reasons: Poor or damaged operation of the vacuum pump, such as pump oil contamination, insufficient or too thin, pump overheating, expansion of components leading to insufficient clearance, etc.
2. Seal aging or damage
Possible reasons: Aging, corrosion, or damage to the sealing components, leading to air leakage.
Solution: Check and replace aging or broken seals to ensure good sealing.
3. Pipeline leakage
Possible reasons: Loose pipeline connections, leakage of electromagnetic valves, pipe joints, vacuum pump suction valves, and sealing gaskets around the working chamber.
Solution: Check the pipeline connections, solenoid valves, pipe joints, etc., and repair or replace them.
4. Internal contamination of vacuum furnace
Possible reason: The interior of the vacuum furnace is too dirty and there is a phenomenon of air release.
Solution: Clean the interior of the vacuum furnace to remove dust and oil stains.
5. Vacuum pump oil problem
Possible reasons: The vacuum pump oil may be contaminated, oxidized, or insufficient.
Solution: Replace the vacuum pump oil with a new one to ensure that the oil level is within the normal range.
6. Control system malfunction
Possible reasons: damage or poor contact of the power supply circuit of the control system, damage or aging of internal components of the control system, software failure, etc.
Solution: Check the power supply circuit of the control system to ensure that the power supply is normal. Check and replace damaged components inside the control system, and update or reinstall the control system software.
