It is the key to select environment-friendly non foaming grinding fluid for high-efficiency grinding fluid machining

1) Features of high efficiency grinding fluid plus grinding process:

1.1 high precision.

The reasons are as follows: 1) the grinding machine used for grinding has higher accuracy, better rigidity and stability than the general cutting machine, and has a micro feed mechanism to control the cutting amount, and heavy oil cleaning agent can carry out micro cutting, so as to ensure the realization of finishing; 2) during grinding, after fine dressing, the grinding wheel grains have the same height as the micro edge, high cutting speed, and many cutting edges In addition to micro cutting edge cutting, the cutting edge also has the functions of extrusion and polishing. Almost all the machined surfaces are cut, and the residual area is small, and there is no debris accumulation, which is conducive to the formation of a smooth surface. The general dimension tolerance grade is it5 ~ it7, and the surface roughness value is small, RA is 0.8 ~ 0.2 μ M.

1.2 high hardness.

Because of the high hardness of the abrasives, the grinding wheel can be used as a tool to process high hardness materials, such as quenched steel, cemented carbide steel, etc. However, those materials with large plasticity are not suitable for grinding wheel processing, so as to avoid blocking the gap between the abrasive grains.

1.3 high temperature.

Because the speed of grinding wheel is very fast, the grinding speed is very high, which is 10-20 times of that of general cutting process, and the cutting edge of abrasive grains is relatively blunt. The friction between the abrasive grains and the workpiece is very serious, resulting in a lot of heat, so that the instantaneous temperature of the grinding point can reach 800-1000 ℃. Therefore, there should be sufficient grinding fluid during grinding. The scc750a water-based environmental protection cutting fluid can be selected.

1.4 self sharpening.

As the micro edge of the abrasive gradually passivates in the grinding process, the grinding force increases gradually, which makes the abrasive break or fall off and re expose the sharp micro edge. This characteristic is called the self sharpening of the grinding wheel. However, as a result of self sharpening, the grinding wheel often loses the equal height of the micro edge of the abrasive grains; moreover, the grinding wheel still needs dressing after working for a certain period of time due to the blocking of the grinding wheel by chips and broken abrasive particles.

Price of heavy oil cleaning agent

2) Application range of grinding

Because grinding is easy to get high machining accuracy and good surface quality, grinding is mainly used in the finishing of parts. It can process not only general materials (such as carbon steel, cast iron and non-ferrous metals), but also hard materials (such as quenched steel, cemented carbide, etc.) which are difficult to process with general metal cutting tools.

3) Selection of grinding fluid:

3.1 effect of different grinding fluid on grinding effect

Different grinding fluids have great influence on the grinding effect. At present, the common emulsion contains a lot of mineral oil and oil additives. After dilution, it turns into oil in water milky white liquid. Its specific heat capacity and thermal conductivity are small. In the process of severe friction, it is easy to cause adhesion wear and diffusion wear between the grinding wheel and the workpiece, which makes the grinding wheel clogged, increases the grinding force, and then causes premature grinding The grinding ratio is reduced by crushing and falling off. Therefore, the selection of excellent grinding fluid plays an important role in improving the grinding performance. Scc750a cutting fluid can be selected. Scc750a cutting fluid is composed of special high-performance extreme pressure additive, antirust agent and other additives. When mixed with water, it can form a stable transparent light yellow solution. It has good extreme pressure lubricity, antirust, cooling, settling and cleaning properties. It is a new generation of high performance, multi-purpose non bubble grinding fluid with high performance

Advantages of scc750a water soluble grinding fluid

Special extreme pressure lubricating additive can significantly reduce the wear of grinding wheel;

High molecular water / oil soluble antirust agent is used, which has excellent rust resistance to equipment and workpieces (especially cast iron);

* no foam tendency, good cleaning performance, better metal chip settlement than similar products; high transparency, is conducive to monitoring the surface processing status of the workpiece, reducing the consumption of cutting fluid, not stimulating the skin, protecting the operator's health, long service life, more than one year replacement period, meeting the requirements of environmental protection, reducing waste and improving production efficiency;

It has no damage to the skin of operators, and has no effect on the paint of the machine, and has protective effect.

4) Characteristics of grinding wheel

Grinding wheel is the main grinding tool. It is a porous object composed of abrasive and binder. Abrasive, bond and pore are the three basic components of grinding wheel. With the different abrasives, bond and manufacturing process of grinding wheel, the characteristics of grinding wheel may vary greatly, which has an important impact on the grinding accuracy, roughness and production efficiency. Therefore, the proper grinding wheel must be selected according to the specific conditions.

5) Selection principle of grinding wheel in grinding

In grinding process, soft grinding wheel should be selected when grinding hard metal. Because the grinding wheel is easy to be blunt at this time, in order to be able to self sharpen in time, the softer grinding wheel should be selected. On the contrary, the grinding performance should be maintained when the grinding wheel is soft and hard. But in grinding very soft materials, such as non-ferrous metals, the grinding wheel is easy to be blocked by chips, so the softer grinding wheel should be selected.