Want to make a good cutting fluid, the laboratory needs to prepare what equipment?

January 09, 2024

Want to make a good cutting fluid, the laboratory needs to prepare what equipment?

If you want to make a good cutting fluid, you must have a laboratory, even if there is only one test bench, what equipment does the laboratory need to prepare?

1. Handheld refractometer
Refractometer, also known as refractometer, is an instrument that can determine the refractive index nD and the average dispersion nF-nC of transparent and translucent liquids or solids (mainly to measure transparent liquids).

Refractive coefficient = cutting fluid concentration/refractive reading.

2. Hydrometer

The long pipe of the liquid hydrometer is often marked with the following digital scale 0.7, 0.8, 0.9, 1.0...... When the hydrometer is sunk to the 0.9 scale in the liquid, it is immediately known that the density of the liquid being measured is 0.9. With this instrument, the object will sink only to a depth where the weight of the liquid it displaces is exactly equal to its own weight. Therefore, the hydrometer sinks deeper in the lighter liquid than it does in the heavier liquid. It sinks deeper in alcohol, for example, than in alcohol mixed with water; It is lighter in pure milk than in watered milk. The hydrometer is successively inserted into various liquids with decreasing specific gravity, such as sulfuric acid (1.8), water (1.0), ether (0.717), etc., and the depth of its sinking is gradually deepened.

3.PH tester

Solutions are divided into acids and bases. The "ruler" for testing the pH of the solution is the "extensive pH test paper", which is a ready-made test paper. When used, tear off a strip, put it in the surface dish, dip a dry glass rod into a drop of the solution to be tested, or use a plastic dropper to absorb the solution and drop it in the middle of the test paper, and then compare the color change of the test paper with the standard colometric card to know the acid and alkaline degree of the solution, which is very convenient.

4. Peristaltic pump

A peristaltic pump is like squeezing a fluid filled hose with a finger clamp, and the fluid moves forward in the tube as the finger slides forward. The peristaltic pump is the same principle except that the roller replaces the finger. Fluid is pumped by alternately squeezing and releasing the pump's elastic delivery hose. Just like squeezing a hose with two fingers, as the fingers move, negative pressure forms in the tube and the liquid flows with it.

5. Foam meter

The foam analyzer is the first instrument that can be used for laboratory testing and quality control, enabling objective, reproducible testing and foam kinetic comparisons. It automatically measures the foam properties of surface-active water-based solutions such as personal care products, soaps and detergents. Through temperature changes, sample size and other parameter Settings, the actual use of the product is simulated.

6. Tapping torque machine

Tapping Torque tester (lubrication medium Comparison tester) is used to verify and test tap performance and tool coating test results, matching the best lubricating medium, mainly for specific tools and machining materials. Compared with the friction testing machine, the tapping torque tester adopts the direct tapping processing method to evaluate the cutting fluid, which is closer to the actual working condition.

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