How to Resolve the Issue of Incorrect Cutting Fluid Usage?

Improper coolant usage can involve various issues, including incorrect concentration, contamination, deterioration, and incorrect selection. Here are some specific methods to address problems related to improper coolant usage:

1. Control Cutting Fluid Concentration：

• Dilute according to the recommended concentration provided by the cutting fluid supplier, as suppliers typically offer detailed dilution ratio instructions.

• Overly concentrated cutting fluids can lead to excessive foam and increased costs, while low concentrations may impair their cooling, lubricating, and rust-preventing properties.

• For processes with high precision or quality, the recommended range by the manufacturer can be increased by 1%-2% to mitigate the impact on processing quality and tool life due to fluctuations in concentration.

• The pH level of cutting fluids significantly impacts their performance, and it is crucial to maintain the pH within an appropriate range, typically recommended between 8.5 and 9.5.

• Low or high pH levels in cutting fluids can adversely affect their performance, so pH levels should be regularly tested and adjusted as needed.

• Cutting fluids are prone to contamination from debris, soil, and other pollutants during use, and thus, measures should be taken to prevent such contamination.

• When using cutting fluids, maintain a clean work environment to prevent contact with contaminants.

• The storage environment for cutting fluids should be cool and dry, avoiding prolonged exposure to high temperatures or humid conditions.

• Cutting fluids tend to deteriorate over time during use, necessitating regular replacement.

• The change interval should be determined based on the cutting fluid usage and processing environment. The replacement cycle for water-soluble cutting fluids is typically shorter, while that for oil-soluble cutting fluids is relatively longer.

• To maintain the cleanliness and performance of cutting fluids, they should be regularly filtered to remove impurities and metal shavings.

• The selection of filters should be determined by the type of cutting fluid and the processing environment to ensure effective filtration.

• Select the appropriate cutting fluid based on specific machining requirements and workpiece material.

• Different metals have varying cooling and lubrication requirements for cutting fluids, so an appropriate cutting fluid should be selected to meet processing needs.

• If too much foam or spoilage occurs in the cutting fluid during use, you can add an appropriate amount of defoamer or preservative to treat it.

• Defoamers reduce foam in cutting fluids, while biocides extend the service life of cutting fluids and prevent spoilage.

• When using cutting fluids, always adhere strictly to the operational procedures to prevent waste and contamination.

• The spray method, pressure, and flow rate of cutting fluids should be adjusted according to processing requirements to ensure their full functionality in cooling, lubricating, and cleaning.

In summary, addressing the improper use of cutting fluids requires a multi-faceted approach, including controlling concentrations, monitoring pH levels, preventing contamination, regularly replacing and filtering cutting fluids, selecting the right types, and using them properly. Implementing these measures can effectively enhance the lifespan and performance stability of cutting fluids, thereby improving processing quality and efficiency.