Metalworking fluids are prone to foam during use, and this type of foam easily affects the lubrication and cooling effects of metalworking fluids. And it will lead to waste of oil tank volume. The foam can be defoamed by adding a metalworking fluid defoamer. Prevent foam from causing serious consequences to the processing process.
(Picture: Use scene of metalworking fluid)
Defoaming solution for metal working fluid
Low foaming or no foaming of metal working fluid is more worry-free. However, from the analysis of its use environment and production formula, it is not difficult to find that it is unrealistic and unscientific to make the cutting fluid completely bubble-free.
1. Processing method causes blistering
The high filtration precision will easily filter out the ingredients in the cutting fluid that are helpful for eliminating foam, so that the cutting fluid cannot establish a balance between replenishment and consumption, and there will be a higher tendency for foam problems during operation. At the same time, the fine grinding debris in the grinding process will form a "filter cake" on the filter paper, which makes the filtration accuracy higher and easily leads to the problem of foam.
2. The pump sucks air and causes foaming
Piping leakage, especially the pipeline in front of the pump, will cause the pump suction air to mix with the cutting fluid and produce more foam; at the same time, it will cause insufficient fluid supply, gas-liquid mixing, resulting in a series of problems such as poor processing surfaces and burns.
3. Pressure flow rate causes foam
Due to the improvement of processing tempo and processing efficiency, the circulating speed and pressure of the cutting fluid of machine tools are required to be correspondingly improved, and the requirements for anti-foam performance are correspondingly improved. Under the same conditions, the increase in pressure and flow will increase the foaming tendency of the cutting fluid.
4. The formula contains surfactants and is prone to foam
The semi-synthetic cutting fluid combines the lubricity of oil and the cooling of water. It is the surfactant that makes the oil and water form a stable and uniform whole. Surfactant substances are easy to change the surface tension of the system, resulting in both production and use. Prone to foam.
(Picture: Cause analysis of foaming in metal working fluid)
Defoaming solution for metal working fluid
Through the above analysis, it is not difficult to find that due to the use environment and the formula of the working fluid, it is easy to cause the metal working fluid to produce foam during use. This kind of foam needs to be dealt with in time, otherwise the foam will affect the cutting, lubrication and cooling effect and it will not be worth the loss.
If you encounter metal cutting fluid bubbles, you can take timely measures such as increasing the volume of the liquid tank and increasing the residence time of the return tank, controlling the flow rate of the cutting fluid, regularly checking the pipeline, etc., and adding defoamers to eliminate the foam.
Adding defoamer to defoam is a chemical defoaming method. The defoamer is not only added in a small amount, but also defoams quickly. A good defoamer also has good foam suppression properties and can inhibit foam generation for a long time.
(Picture: Sample of Nanhui Metalworking Fluid Defoamer)
The Nanhui defoamer manufacturer has developed and designed the metalworking fluid defoamer as a compound defoamer according to the characteristics of metalworking fluids that are prone to foam during use. The defoamer has good defoaming and anti-foaming effects.
Nanhui metalworking fluid defoamer is added in the production, which can control the foam from the production source, optimize the formula of the metalworking fluid, reduce the surface tension of the system, and reduce the foaming power. The defoaming agent can also be added during the use of metalworking fluids, generally about three thousandths of the foaming system. The addition amount is small, which can quickly defoam the foam and inhibit foam regeneration for a long time.
The source manufacturer of Nanhui defoamer can solve various industrial foam problems in a targeted manner. If you encounter bubble problems in related industries, you can call Nanhui technical specialist Yoyo +86 134 28601010
