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Biological preservatives refer to a class of high-efficiency preservatives obtained from organisms through biological culture, extraction and separation technology, which has the effect of inhibiting and killing microorganisms. Food is rich in nutrition and easily corrupted by microbial contamination.

The reproduction speed is fast; Everywhere; Strong ability to adapt to the environment, easy to mutate. The coating is rich in moisture and various nutrients, providing ideal conditions for the growth of microorganisms. Excessive growth and reproduction of microorganisms can lead to paint discoloration,

Aerobic bacteria live in a mineral environment, such as water, cutting fluid concentrate and machine tool leakage of oil, in allergy and other problems, the following combined with our work in the actual experience, talk about the use of cutting fluid problems and countermeasures.

The lubrication performance of oil-based cutting fluid is good, but the cooling effect is poor. Water - based cutting fluid and oil - based cutting liquid phase ratio lubrication performance is relatively poor,

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