Dynacut MDE Bedieningshandleiding - Pagina 7

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Function description

Principle of minimum quantity lubrication (MQL)

The minimum quantity lubrication is a loss or consumption lubrication, i. The lubricant used is

almost completely consumed during processing, so that preparation in the circuit is no longer

necessary. The actual lubrication task at the point of action between the tool and the

workpiece is achieved by means of oil droplet, the aerosol, which is finely dispersed in an air

stream. With the minimum quantity lubrication, an effective lubrication of cutting processes

can be achieved using the smallest amounts of lubricant. The elaborate cleaning and disposal

of large quantities of lubricating and cooling lubricants are thus eliminated or minimized.

Aerosol generation

The minimum quantity lubrication system DYNACUT-MDE described here produces a very

homogeneous aerosol, based on the size and the distribution of the oil droplets, since the

lubricant is atomized in a controlled manner. The functional principle of the spray nozzles

makes it possible to produce aerosols with a droplet size of approx. 15 - 35 μm.

Layout and function

The DYNACUT-MDE minimum quantity lubrication system consists of a lubricant reservoir, one

or several mixture regulating units and one or several lubricant lines with spray nozzle.

The lubricant reservoir is pressurized via a compressed air connection and hand valve. The

solenoid valves for air and coolant are opened by switching the main switch, whereby the

compressed air as well as the lubricant are transported to the spray nozzle via separate hoses.

The required quantity of lubricant and atomizer air is regulated via the throttle valves

mounted on the mixture regulating unit. The internal pressure of the lubricant reservoir is

adjusted via the control valve mounted on the lubricant reservoir.

At the end of the lubricant line is a spray nozzle, with the help of which the aerosol is

generated. The lubricant is then transported directly to the lubrication point using the carrier

air.