Lubricants and Lubrication, 2 Volume Set by Mang Wilfried Dresel & Wilfried Dresel

Author:Mang,Wilfried Dresel & Wilfried Dresel
Language: eng
Format: epub
ISBN: 9783527326709
Publisher: John Wiley & Sons, Inc.
Published: 2017-04-24T00:00:00+00:00

14.8.6.5 Corrective Maintenance for Neat and Water-miscible Cutting Fluids

Both types of cutting fluids are required for metalworking operations and both occasionally generate problems which need to be solved (Tables 14.19 and 14.20).

Table 14.19 Corrective maintenance for neat cutting fluids.

Problem Corrective measure

Fluid level in tank too low Top-up; check for leaks

Excess solid impurities Fit suitable filtering systems, centrifuges or exchange the fluid centrifuges or exchange the fluid

Liquid impurities (water or solvents) Heat fluid, fit separators

Viscosity too high or too low Top-up with an oil of different viscosity containing the same additives, determine causes, check for leaks, replacement

Corrosion (steel, metals) Remove water, add corrosion inhibitors, replacement

Tramp oils Reduce leaks of slideway, hydraulic and lubricating oils, replacement

Foaming Check pumps for air leaks, check fluid level, add de-foamers, replacement

Oil mist, oil vapours Use low-misting oils, add anti-mist, fit extraction to machines, improve cutting fluid feed to the cutting zone

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