In the metal processing industry, machining fluids play a crucial role, including cooling, lubrication, and cleaning. However, a large amount of foam is often produced in the processing process. These foam will not only affect the efficiency of the processing fluid, but also reduce the processing precision and production efficiency. Therefore, the importance of defoamers as key additives in metalworking fluids cannot be ignored.

Defoamer of metalworking fluid can rapidly dissipate foam by destroying its surface tension, thus improving the stability and service life of the working fluid. According to their chemical composition and mechanism of action, defoamers can be classified into various categories, including organosilicon defoamers, polyether defoamers, mineral oil defoamers, and composite defoamers.

Choosing the appropriate defoamer for metal processing fluid requires consideration of multiple factors, including the composition of the fluid, processing technology, equipment type, and environmental conditions. Different types of defoamers are suitable for different processing liquid systems, so the selection needs to be based on specific circumstances.

For example, in online cutting, the high-speed operation of coolant and wire will produce a lot of foam, which will seriously affect the quality and efficiency of processing. At this time, metal wire cutting defoamer specially designed for wire cutting processing should be selected. This kind of defoamer can effectively reduce the tension of foam, destroy the stable structure of foam, and has good dispersibility, ensure uniform distribution in the coolant, and ensure the circulation efficiency of the coolant.

In addition, for different types of machining fluids such as cutting fluid, emulsified oil, and lubricating oil, corresponding defoamers need to be selected for treatment. Cutting fluid defoamer is mainly used in metal processing, cutting fluid and other occasions, emulsified oil defoamer is suitable for emulsified oil, microemulsion and other systems, while lubricating oil defoamer is widely used in various lubricating oils and cutting oils.

With the continuous development of the metal processing industry, the requirements for processing quality and production efficiency are increasing, and the research and application of defoamers for metal processing fluids are also constantly advancing. In the future, defoamers will pay more attention to environmental protection and sustainability, and develop safer and non-toxic defoamers to meet market demand.

Meanwhile, with the continuous advancement of technology, the performance of defoamers will continue to improve, and their stability and durability will be further strengthened. In addition, more specialized defoamers will be developed for different processing liquid systems and process conditions, providing stronger support for the sustainable development of the metal processing industry.

In summary, defoamers for metalworking fluids play an irreplaceable and important role in the metalworking industry. By selecting and using defoamers reasonably, not only can the performance and stability of machining fluids be improved, but production costs can also be effectively reduced, production efficiency can be improved, and new impetus can be injected into the competitiveness of enterprises. With the continuous advancement of technology and the changing market demand, the application prospects of defoamers in metalworking fluids will be even broader.