In the process of metal working, the use of metal working fluid is essential, but it is often prone to foam. This can be due to additives in the processing fluid, heat and pressure from high-speed cutting or grinding, and the mixing of metal debris. Bubbles cause a number of problems:
Affect the machining accuracy: the foam may cause the machining fluid to not cover the machined surface evenly, thus affecting the machining accuracy and surface quality.
Reduce the cooling effect: hinder the cooling effect of the processing fluid on the tool and the workpiece, which may lead to increased tool wear and workpiece deformation.
Increased cost: The foam may cause the processing fluid to overflow, causing waste, but also increase the cost of disposing of the foam.
Defoamer for metal working fluids can effectively solve the adverse effects of these foams. It usually has the following characteristics:
Good dispersion: It can be quickly and evenly dispersed in the metal processing fluid to play the role of defoaming.
High temperature and high pressure resistance: It can maintain stable defoaming performance under harsh conditions of metal processing.
It has no adverse effect on the performance of the processing fluid: it will not change the original properties of the processing fluid such as lubrication and rust prevention.
For example, in turning, the use of defoamer for metal working fluids can ensure the finish and dimensional accuracy of the machined surface.
In grinding process, defoamer can improve grinding efficiency and reduce grinding wheel wear.
In short, the defoamer used in metal working fluid is of great significance to improve the efficiency, quality and cost of metal working.
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