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A Refractometer can
be used to determine the concentration of a coolant
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(Click
here to buy a Refractometer/ coolant checker online)
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Just a little bit
of effort can extend the life of metalworking fluid coolant sumps,
reducing waste and costly coolant disposal. Coolant management can also reduce worker exposure
to health risks. This is true for soluble oils, Semi-synthetics,
and synthetics. All resulting in a significant cost savings
to end users of metalworking coolants.
The Key Factors in Metalworking Coolant
longevity are correct concentration, filtration, and biological activity:
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Coolants
are designed to function properly at concentrations of 2-15%
depending on the severity of the application.
After selection of the correct metalworking fluid for you application
the next most important aspect is to maintain the correct concentration
level.
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Filtration
of particulates and metal fines helps keep the coolant clean,
aids in keeping surface finishes high, maintains tool life
and reduces skin contamination to metal fines.
Metal fine contamination is the most common cause of dermatitis
and skin sensitization, more so than chemicals. The fines
penetrate into cuts/abrasions in the skin and cause redness,
sores and blistering.
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Biological
control can be a daunting task in some shops. It is however
a simple process to control. pH is a great indicator of
biological activity. As biological growth, in many cases,
reduces the pH of the coolant. This is due to acids produced
as bacterial action occurs. Low pH readings may indicate
a bacterial problem.
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