What are the reasons for the contamination of the furnace chamber of the vakuumovn?

1. Lekkasje: Dette er en av hovedårsakene til utstyrsforurensning.

2. Diffusjonspumpe og mekanisk pumpe pumper olje tilbake til ovnen.

3. Parts or fixtures are not thoroughly cleaned.

4. Low melting point metals are brought into the vakuumovn. Lead, aluminum, zinc, etc. are all common pollutants.

5. Environmental pollution in the heat treatment workshop.