Ways to prevent air leakage in vacuum furnace
1. Check whether the seal is clean, flat, undamaged, and has good elasticity. Clean the seal with alcohol and a rag and apply vacuum grease.
2. Check whether the seal is damaged or not flexible enough. If so, the seal should be replaced.
3. Regularly replace the sealing ring. Even if the sealing ring is intact, if the sealing ring needs to be removed for repairs such as replacing the valve, it is recommended to install a new sealing ring when reinstalling.
4. Leak detection of pipeline seals connecting slide valve pumps, Roots pumps and diffusion pumps, leak detection of the fore-stage valve stem seals, leak detections of explosion-proof devices, etc., to ensure that the above-mentioned seals are not leaking gas.