The most important step to prevent bacteria formation in metalworking fluids is to ensure proper hygiene and control conditions in the system. Particularly, maintaining the correct concentration, regular maintenance, and the use of biocides significantly inhibit bacterial growth.
Methods to prevent bacterial formation:
- Proper concentration control: Overly diluted emulsions create a suitable environment for bacteria.
- Regular system cleaning: Swarf and oil residues accumulated in tanks, pipes, and filters must be cleaned.
- Use of biocide (germicide): Microorganism formation is prevented by adding biocide in appropriate doses.
- pH control: Maintaining the pH within the ideal range slows down bacterial growth.
- Oxygen and stagnation control: Stagnant areas and low circulation increase bacterial formation.
- Prevention of contamination: Hydraulic oil and foreign oils must be prevented from mixing into the system.
- Regular fluid change: Cutting fluid that has reached the end of its life must be replaced in a timely manner.
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