TROUBLESHOOTING WATER SOLUBLE CUTTING OIL PROBLEMS AND SOLUTIONS PROBLEM
FOAM
SMOKE
MIXING INSTABILITY
POSSIBLE CAUSES
CORRECTIVE ACTIONS
1 2 3 4 5
Too high concentration Too low fluid level in tank Water too soft Pump sucking air Contamination by cleaner
1 2 3 4 5
Top up at lower concentration of fluid Fill up with more fluid Harden water with Calcium acetate (MWS ADDITIVE AF 201) Prevent air entry Add anti-foam (MWS ADDITIVE AF 2220)
1 2 3
Too high tramp oil contamination Too high concentration Non stable emulsion
1 2 3
Skimmer to remove oil contamination from leakage Top up with lower concentrated fluid Correct mixing – first water, then add concentrate
1 2 3 4
Incorrect mixing Water too hard Biological contamination Temperature
1 2
First water, then add concentrate Select adapted product, mix with demineralized water Check concentration and pH, add biocide Optimum work environment 18—35 °C
1 2 3
Too low concentration Too low pH Too hard water
1
CORROSION
3 4
2 3
SKIN & RESPIRATORY ISSUES
1 2 3 4 5 6
Too high concentration Too high pH Biological contamination Irritation by fines (metal chips) Contaminated towel Allergy
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1 2 3 4 5 6
Top up with higher concentrated fluid Use anti-corrosive MWS ADDITIVE AC 3205 / 3206 / 3207 Add biocide, increase concentration Restore alcaline reserve MWS ADDITIVE PH 795 / 4000 Select adapted product, mix with demineralized water
Top up with lower concentrated fluid Check if contaminated from cleaner Check concentration, add biocide Check filters Wear Personal Protective Equipment when requested Single use towels Identify allergen with Doctor support
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WATER SOLUBLE CUTTING OIL PROBLEMS AND SOLUTIONS PROBLEM
EMULSION SPLIT
BACTERIA, FUNGUS
POSSIBLE CAUSES
1 2 3 4
Too high concentration Tramp oil contamination Too hard water Biological contamination
1 2 3
1 2 3 4 5 6
Too low pH Too low concentration Tramp oil contamination Dirty environment Cross contamination Contaminated water (bacteria count >10^3 /mL) Adding contaminated fluid recycled from the fines
1 2 3
3 4 5 6
Too low concentration Tramp oil contamination should not exceed 2% Blurred line in refactrometer reading indicates high tramp oil contamination Fluid flow, Nozzles Volume Pressure Abrasive wear
1 2 3 4 5
1 2 3 4
Extreme Temperature Rain water contamination Reaction with container / drum Too long storage
1 2 3 4
7
1 2
SHORT TOOL LIFE
STORAGE
CORRECTIVE ACTIONS
4
4 5
6 7
6
Top up with lower concentrated fluid Remove tramp oil with skimmer Select adapted product, mix with demineralized water Check concentration, add biocide
Add biocide, increase concentration Top up with higher concentrated fluid Restore alcaline reserve MWS ADDITIVE PH 795 / 4000 Remove tramp oil with skimmer Clean filters and installation Disinfect By-pass installation Clean installation with HOUGHTO-CLEAN MSC (check our product line card for more information) Treat water or use potable water Check recycled fluid is not contaminated
Top up with higher concentrated fluid Remove tramp oil with skimmer Check flow quality & nozzles not blocked Adapt flow : 8—10 L/min per kW spindle power Adapt pressure to tool‘s speed (Vc): P[bar]≈Vc² [m/s] / 200) Open valves, eliminate blockage Check filters
Adapted storing (+5 to + 40°C) Correct storage conditions, lying (3 & 9 o‘clock) Don‘t use galvanized or painted containers Check manufacturer‘s advice for max storage duration
Please contact your Quaker Houghton representative for more information!
©2020 Quaker Houghton. All rights reserved.
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