In the metal processing industry, defoamers are crucial additives for improving processing efficiency and ensuring product quality. The metal processing industry, as one of the core areas of manufacturing, has extremely high requirements for the stability and performance of processing fluids. However, the foam produced in the processing process not only affects the processing efficiency, but also may seriously affect the product quality. Therefore, the application of defoamers is particularly important.

From early simple surfactant defoamers to today's diversified system covering organic silicon, inorganic salts, and composite defoamers, defoamers in the metal processing industry have undergone significant technological innovations. These new defoamers not only have higher defoaming efficiency and stability, but also better adapt to the needs of different processing environments and metal materials.

In terms of technological innovation, researchers have significantly improved the effectiveness of defoamers by optimizing their molecular structure, enhancing their dispersibility and stability. At the same time, a series of specialized defoamers have been developed for different processing liquid systems and metal materials, such as cutting fluid defoamers, emulsified oil defoamers, etc., further meeting the diversified needs of the metal processing industry.

In the future, with the increasingly strict environmental regulations and the increasing demand for efficient and environmentally friendly processing fluids in the metal processing industry, defoamers in the metal processing industry will develop towards a greener, more efficient, and multifunctional direction. This requires researchers to continuously explore new types of defoamer materials and technologies, promoting the continuous innovation and development of defoamers in the metal processing industry.