How to Use Cutting Fluid

Configuration (Dilution) The configuration of cutting fluids involves diluting with water in a specific ratio. When diluting water-based cutting fluids, especially emulsions, pay attention to the following points:

（1)       Water Quality Generally, it is not advisable to use water with a hardness exceeding the recommended level, as the calcium and magnesium ions present in hard water can render anionic surfactants ineffective and cause decomposition.

Metal soaps that are insoluble in water have emerged. Even when the emulsion is made with non-ionic surfactants, a large amount of metal ions can cause micelles to aggregate, thereby affecting the stability of the emulsion.

Water that is too soft is not suitable either; emulsions made with overly soft water tend to produce excessive foam during use. 

  （2)Dilute The dilution of cutting fluids is crucial for the stability of emulsified cutting fluids. Before using cutting fluids, it is essential to determine the dilution ratio and the required volume of the emulsified fluid, then calculate the amount of the original cutting fluid and water needed.

When diluting, select a clean container, pour all the required water into the container, then add the original liquid under low-speed stirring. During the mixing process, the original liquid should be added at a rate that prevents the formation of unemulsified liquid.

Do not reverse the order of adding the stock solution and water. 

Maintain Extending the service life of cutting fluids involves not only selecting the right quality of coolant and using it properly, but also proper maintenance of the cutting fluid is a crucial factor.

The maintenance of cutting fluids primarily includes the following aspects: 

  ⑴ Ensure the smooth operation of the liquid circulation line by timely removing metal shavings, metal powders, moldy slime, decomposition products of the cutting fluid itself, abrasive dust, and other contaminants to prevent blockages.  

  ⑵ Antibacterial Antibacterial growth control, particularly in emulsified cutting fluids, is crucial. During the use of cutting fluids, it is essential to regularly check bacterial content and take timely measures accordingly.  

  ⑶ Purification Timely removal of metal shavings and floating oil from cutting fluids is essential to eliminate a breeding ground for bacteria.  

  ⑷ Scheduled coolant inspectionsPHValues have undergone significant changes; timely measures should be taken accordingly.  

  ⑸ Ensure timely replenishment of cutting fluid, as the fluid may splash, atomize, evaporate, and carry away materials and chips during the recycling process.

The system will continuously consume the liquid, therefore, it is necessary to replenish new fluid to maintain the constant total volume of circulating liquid.

 5. Fluid Cutting Purification 

  The filtration and purification of cutting fluids is the process of removing a certain proportion and relatively large solid particles from the cutting fluid. The cutting fluid purified through this process can be reused.

Achieve the purpose of recycling in mechanical processing. The advantages of coolant filtration and purification are mainly reflected in the following aspects: 

  （1） Extend the coolant change cycle: According to our factory's practical experience, the change cycle of filtered and purified coolant can be significantly extended. 

  （2） Enhancing Tool and Grinding Wheel Lifespan: Recent research indicates that improving the lifespan of cutting tools and grinding wheels can be achieved by reducing impurities in cutting fluids (such as chips and grinding wheel powder).

From40μmLowered to10μmBelow, the lifespan of cutting tools (or grinding wheels) can be extended.1-3No Chinese content provided.   

  （ 3） Enhance workpiece surface roughness and reduce waste rate.  

  （4） Extending the lifespan of piping and pump units, solid particles in cutting fluids and other chips can accelerate wear on components such as pipes and pumps.

6. Filtering and Purification Types for Cutting Fluids 

The filtration and purification of cutting fluids generally falls into two main categories: filtration and separation, but in actual production, they are often used in combination.