How to Properly Use Cutting Fluid for a Vertical Spindle Circular Grinding Machine?

Proper use of cutting fluid in vertical cylindrical surface grinding machines is crucial for ensuring加工 quality, extending the lifespan of the machine tools and cutting tools, and improving production efficiency. Here are some key steps and precautions:

Section I: Cutting Fluid Mixing

1. Water Quality Selection：

• Avoid using water with high hardness, as the calcium and magnesium ions present in hard water may render anionic surfactants ineffective, leading to emulsion breakdown.
• It is also not advisable to use overly soft water, as emulsions made with excessively soft water tend to produce a large amount of foam during use.
• The ideal water hardness should be between 80~125 ppm. If the water quality does not meet the requirements, pretreatment should be carried out, such as filtration and softening.

1. Dilution Ratio：

• Before using cutting fluids, it is necessary to determine the dilution ratio based on the type of cutting fluid and processing requirements.
• When diluting, first pour the required amount of water into a clean container, then gradually add the cutting fluid concentrate under low-speed stirring until the desired concentration is reached. Note that the order of adding the concentrate and water cannot be reversed.

Section II: Coolant Usage

1. Continuous Supply：

• During the machining process, it is essential to continuously supply cutting fluid to the cutting area to adequately cool and lubricate the tool and workpiece.

1. Pressure Adjustment：

• For certain processes, such as deep hole boring, a high-pressure coolant system may be required to ensure that coolant reaches the cutting area.

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• Nozzles should be positioned appropriately to ensure that coolant is evenly distributed over the cutting area.
• The number and type of nozzles should also be selected based on processing requirements, such as using multi-row nozzles or annular fluidizers to enhance cooling efficiency.

Section III: Cutting Fluid Maintenance

1. Concentration Monitoring：

• Regular testing of the cutting fluid concentration is necessary, and supplements or replacements should be made as needed.

1. Maintain Cleanliness：

• Regularly clean the coolant tank, pipes, and nozzles to prevent the accumulation of impurities and metal shavings.
• The use of a cutting fluid filtration unit can further maintain the cleanliness of the cutting fluid.

1. pH Adjustment：

• Regular pH testing of cutting fluids is essential, with adjustments made as needed to maintain stability and cooling efficiency.

1. Antibacterial treatment：

• Coolants, especially emulsions, are prone to bacterial growth. Regular checks of bacterial content and appropriate measures for antibacterial treatment should be taken.

Four: Cautionary Notes

1. Security：

• When using cutting fluids, adhere to the relevant safety operating procedures to prevent splashes from contacting the eyes or skin.
• In case of accidental contact with eyes or skin, rinse thoroughly with plenty of water and seek medical attention immediately.

1. Environmental sustainability：

• The treatment and discharge of cutting fluids must comply with environmental protection requirements to prevent environmental pollution.

1. Economic：

• Choose the appropriate type of cutting fluid and dilution ratio to reduce costs while meeting the processing requirements.

In summary, proper utilization of the horizontal spindle circular grinding machine's cutting fluid requires attention to its configuration, usage, maintenance, and precautions. Through scientific and rational use and management, the cutting fluid's potential can be fully realized, enhancing machining quality and production efficiency.