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Cutting fluid
time:2018-05-03
1、Cutting fluid

Cutting fluid is a kind of industrial liquid used to lubricate and cool cutting tools and parts in the process of metal cutting and grinding. The cutting fluid is made by a variety of high quality functional auxiliaries. It has good lubrication, cooling performance, anti-rust property, cleaning and cleaning function, anti-corrosion function, and easy to dilute characteristics.

2、Classification of cutting fluid

Water-based cutting fluid: fully combined and semi synthetic, oil-free, semi synthetic, oil-bearing and emulsified.
Oil based cutting fluid: ordinary type, active sulfur extreme pressure type, inactive sulfur extruding type, chlorine type extreme pressure type and special type.


3、Main function of the cutting fluid in the process of processing

Lubrication 
The lubrication of the cutting fluid in the cutting process can reduce the friction between the front of the cutter surface and the chip, the back surface and the machined surface, forming a lubricating film, thus reducing the cutting force, friction and power consumption, reducing the surface temperature and tool wear of the friction parts of the work piece and the work piece, and improving the cutting performance of the work piece material.

Cooling

The cooling effect of the cutting fluid is through the action of convection and vaporization between the cutting tool (or the grinding wheel), the chip and the work piece. To make the cutting heat taken away from the tool and the work piece. The cutting temperature is effectively reduced, the thermal deformation of the work piece and the tool is reduced, the tool hardness is maintained, so the machining precision and tool durability are improved

Cleaning
In the process of metal cutting, cutting fluid is required to have good cleaning function. Remove the generated chips, debris and iron powder, oil and sand, prevent the contamination of the machine tool and the work piece and tool, and keep the cutting edge of the cutter or grinding wheel sharp, so it can not affect the cutting effect.

Rust-proof
In metal cutting process, the work piece must be corroded with corrosive medium such as oil sludge, which is produced by decomposition or oxidation deterioration of the environmental medium and cutting fluid, and the surface of machine parts contacted with cutting fluid will also corrode. In addition, when the work piece is temporarily stored in the process of processing or in the process of circulation, the cutting fluid is also required to have a certain anti rust ability to prevent corrosion of the corrosive material such as the remaining oil sludge on the environment medium and the work piece.

4、Main testing items for cutting fluid
The main quality testing items of oil based cutting fluid include: viscosity, flash point, pour point, fat content, sulfur content, chlorine content, copper corrosion, moisture, mechanical impurity, four ball test and so on.
The main quality testing items of water based cutting fluid include pH, anti-rust, aluminum corrosion, copper corrosion, reciprocating friction test, TIMKEN test, tapping torque test and so on.


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