The use of cutting fluid must be inseparable from the dilution of water, and it is convenient and cheap to use water as a cutting fluid to dilute the carrier. Water, as a gift of nature, exists everywhere and is very easy to obtain. In addition, water is used as a carrier to have a low price, which makes the cutting fluid use cost greatly reduced.
If the cutting fluid is inseparable from water, is there any quality requirement for the water used to dilute the cutting fluid?
The flowing water is not rotted, and the water as an organic substance is characterized by its tendency to deteriorate or even smell. When using a dilute cutting fluid, it must not be able to use the deteriorated stagnant water.
In most of the water, there are a large number of microbial bacteria, algae, etc. The use of such water will cause the cutting fluid to become bacteria due to the temperature rise during the use of the cutting fluid, impurities and mineral oil, base oil, fatty acids and other organic substances. The hotbed provides sufficient nutrients for bacterial growth, accelerates the rate of microbial growth, and shortens the life of the cutting fluid.
The content of calcium and magnesium ions in water seriously affects the softness and hardness of water. The more the ion content, the harder the water is. The hard water affects the emulsifying properties of the cutting fluid. If the cutting fluid is not completely emulsified in water, the dissolved side completely affects the cutting. Liquid stability and the performance of the cutting fluid.
Too soft water is not necessarily a good thing. The softer the water, the greater the surface tension. In use, it is very easy to cause problems such as excessive foaming and difficulty in defoaming.
Water with a large content of chlorine is easily corroded as a diluting water for cutting fluids, especially when the working molecules are more active in non-ferrous metals such as copper, aluminum, magnesium and their alloys.
Therefore, the use of cutting fluid has a very close relationship with the water used for dilution. Choosing the right cutting fluid to dilute water will bring great convenience to production and processing and improve the efficiency of production cutting.
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