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How to deal with the common problems of moldy and smelly cutting fluid
Jun 01, 2018

As an industrial consumable, cutting fluid is widely used in the processing industry.

The stability of cutting fluid is crucial to the production schedule.

Common cutting fluids are: emulsion cutting fluid, semi-synthetic cutting fluid, fully synthetic cutting fluid, and micro-emulsion cutting fluid.

Different machining methods choose different cutting fluids. Different materials use different cutting fluids also.

The concentration is also different according to the processing method.

Rough machining can reduce the concentration a little bit and save the cost. The finishing machining concentration should be higher to ensure that the cutting fluid is lubricated and the surface of the processed product has better effect.

According to the cutting fluid manufacturer recommended to use the dispensing concentration to ensure tool life and production stability.

l  Common problems of cutting fluid:The cutting fluid is moldy and smelly

The cutting fluid is moldy and smelly, causing a pungent smell, which can easily lead to skin allergy.

If such cases are found, the coolant should be cleaned in time and the cutting fluid should be replaced.

This is usually caused by a long period of not using cutting fluid and the external environment.

During the period when the equipment is not working, the cutting fluid circulation should be started regularly to avoid mold and other situations.

l  Cutting fluid foaming

The foaming of cutting fluid is easy to lead insufficient cooling during processing, which resulting in rapid wear of cutting tool and affects the normal operation. This may occur if the cutting fluid concentration ratio is too high or the water level is too low. Should be adjusted in time. It is also recommended to add an appropriate amount of defoamer according to the cutting fluid manufacturer to avoid blistering of the cutting fluid.

l  Too much Cutting fluid oil slick

The cutting fluid oil slick is usually the hydraulic oil and guide rail oil on the equipment.

An oil - water separator can be added at the cooling tank.

The oil - water separator shall be inspected and cleaned regularly to avoid the unstable cutting fluid caused by the mixing of cutting fluid and oil products.

l  The surface finish of the workpiece is low and easy to rust

Selecting suitable cutting fluid can ensure the surface finish of the workpiece. The main effect on the smoothness is the lubricity of the chip solution. Mix the concentration according to the manufacturer's recommendation.

The cutting fluid also has a certain rust-proof period which is shorter. Special anti-rust oil should be used to protect the workpiece after the processing is completed.

The use of cutting fluid, should pay attention to regular inspection, regular replacement of cutting fluid, the selection of reasonable and appropriate concentration ratio.

Only in this way can we prevent the unexpected, ensure normal production and avoid unnecessary troubles.

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