Performance index of emulsified cutting fluid
1, Appearance (15°C~35°C): brown to light yellow translucent uniform oil body
2, Extreme pressure type emulsified oil PB value: 70kg
3,PH value of emulsified oil: 7.5-8.5 for rust prevention, cleaning and good extreme pressure, 8.5-9.5 for transparent type.
4, stability (5% emulsion): 50mL of emulsion placed for 24 hours, observe the soap or oil layer of the precipitation volume
5, anti-foaming performance (distilled water): 10min after standing foam no more than 2mL
Semi-synthetic cutting fluid performance indicators
1, Appearance (15 ° C ~ 35 ° C): transparent uniform liquid
2,Storage stability: no discoloration, no delamination, uniform liquid.
3, PH value (5% dilution): 8 ~ 10
4,Anti-foaming property: standing at 15°C~35°C, the foam does not exceed 2mL after 10min.
5,Hard water adaptability: water hardness above 350ppm without flocculent precipitation.
Performance index of fully synthetic cutting fluid
1,Concentrate: Appearance: liquid without stratification, no precipitation, uniform liquid; paste without precipitation of heterogeneous substances, uniform paste; solid powder without hard lumps, easily soluble in water, uniform powder.
2,Storage stability: no delamination, phase change and gelatinous material, and it can be restored to the original packaging after the test.
3,Dilution solution: Appearance: transparent or translucent.
4,PH value:8.0~10.0
5,Defoamability(mL/10min)<2
6,Surface tension(mN/m)<40
