The lubrication performance of oil-based cutting fluid is good, but the cooling effect is poor.

Microorganisms are widely distributed in nature, and traces of microorganisms can be found in the air, soil, rivers, oceans and natural objects. In general, the environment contains 1-10,000 microorganisms per liter of air, 10,000-10 (10) microorganisms per gram of soil

studied the relationship between biological spoilage, chemical degradation and function in soluble emulsified oil. Hernandez, P.M. et al. studied various factors that should be considered in developing antimicrobial water-based cutting fluids. Hill, E.C. in London,

Before adding the cutting fluid, apply a special machine tool pipe cleaning agent to clean the cutting fluid pool and pipe dry, and carry out sterilization treatment.

biological stability of water-based metal cutting fluids in China In recent years, the biological stability of water-based metal cutting fluids has aroused widespread concern in the domestic industry, and domestic research has been conducted in this area

Bacteria (The spoilage water-based metal cutting fluid taken from the site, the total number of bacterial colonies after constant temperature culture >10 mL, true

The filter paper was cut into 1cm diameter round paper, soaked and drained in the tested bactericide, and then the paper was stuck in the center of the AGAR plate with inoculated bacteria, and cultured at 36℃ for 48h. If the fungicide has a bacteriostatic effect, there is no colony growth around the paper, so as to form a round transparent bacteriostatic circle

Dow Chemical metal working fluid fungicide

The pH value of the test solution was determined every day, the appearance changes and odor emission were observed, and the number of bacteria and fungi were determined after 5 days of ventilation and 2 days of deaeration. Repeat until the water-based metal cutting fluid deteriorates. Due to the microbial reproduction process, cellular respiration releases CO2 and the organic acids produced in the degradation process will cause the pH value to drop. Therefore, the biological stability of water-based metal cutting fluid can be evaluated by the degree of pH reduction and the degree of microbial reproduction

The filter paper was cut into 1cm diameter round paper, soaked and drained in the tested bactericide, and then the paper was stuck in the center of the AGAR plate with inoculated bacteria, and cultured at 36℃ for 48h. If the fungicide has a bacteriostatic effect