Taian Haishu Machinery Co.,Ltd.
Telephone: +86-538-8606169
Fax: +86-538-8606169
Address: Zhouwangzhuang Village, Shankou Town
Taian City Shandong Province China
People engaged in CNC lathes know that cutting fluid is one of the most important production materials when operating the cutting tool on CNC lathes. It not only effectively protects the blade but also makes the processing components more precise. However, sometimes if the cutting fluid is not selected properly, it can cause the blade to stick to the tool, and in severe cases, it can also lead to The phenomenon of scratches, burns, oxidation turning black, and yellowing on workpieces is mainly caused by the blackening and deterioration of cutting fluid. Today, we will explain the reasons and treatment methods for the blackening and deterioration of cutting fluid.
The issue of oxidation is the first and foremost issue that can easily arise during the processing of aluminum alloys. Different aluminum alloys have different characteristics and requirements. In the selection of cutting fluid materials, neutral cutting fluid with low alkali content and a pH value of about 7.0-8.5 will be selected. Due to the corrosiveness of alkali to aluminum, magnesium, zinc, iron, etc Powerful, alkali can accelerate the movement of metal ions. Experiments have shown that when aluminum is immersed in an alkaline liquid with a pH of 10, a large number of bubbles are rapidly generated on the surface of the aluminum component. In just 10 minutes, the surface of the aluminum used in the experiment turns black. Under the observation of a microscope, the original lubrication and smoothness of the aluminum surface used in the experiment become smooth Pits and pits, severely corroded and rotted away.
Can aluminum corrosion be treated if the pH value of the cutting fluid is too low? When the selection of raw materials is appropriate, the cutting fluid has a certain prolonging effect on the corrosion phenomenon of aluminum alloy, but it does not play a basic role in the maintenance of aluminum. The low pH of the cutting fluid is very unfavorable for the rust prevention maintenance of consumer equipment, machine tools, etc. Moreover, the cutting fluid Under low pH conditions, it is easy to create a good breeding space for various bacteria, leading to deterioration and odor of the cutting fluid, greatly reducing the service life of the cutting fluid.
How to handle this contradictory issue? Theoretical evidence shows that adding 0.5% atwell-2815 to the concentrated solution can effectively handle this situation. The corrosion inhibition efficiency of Atwell-2815 on aluminum and aluminum alloys can reach 98% in environments with high and low pH values, even in environments with strong alkalis (pH 9.5) Effectively maintain aluminum alloy from blackening and discoloration.
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The above is the reason and treatment method for the blackening and deterioration phenomenon of cutting fluid introduced by the CNC lathe manufacturer, hoping to be helpful for everyone in using cutting fluid in the future.
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