The development history of grinding wheel

Everything is developed step by step, and the high quality metal grinding disc is no exception. How did the grinding wheel develop? If you don't know, look down with me! Mastering the development history of grinding wheels is beneficial to the selection and application of grinding wheels.
As early as the Neolithic Age, man began to use natural grinding stones to process tools such as stone knives, axes, bones, horns, and teeth; long ago, man discovered ceramic high quality metal grinding discs fired with natural abrasives and clay; around 1900, man-made Abrasives came out, using artificial abrasives to make a variety of grinding wheels. In succession, it creates conditions for the rapid development of grinding and grinding machines. Since then, the proportion of grinding wheels in abrasives has been increasing.

In the past few years, the output of many hardware products in China ranked first in the world. Therefore, the high quality metal grinding disc belonging to the hardware industry naturally played a vital role. The grinding wheels strengthened the technological innovation of production, improved the level of production technology, opened the "bottleneck" restricting the innovative ability of enterprise products and the technological level of enterprises, and made new ones in time. The grinding wheel is applied to the existing equipment of the enterprise, prolongs its technical life, improves its efficiency, and ensures the product quality at the source of production.

With the rapid development of the Chinese economy in recent years, the technological innovation of high quality metal grinding discs has been strengthened continuously. In the future, grinding wheels will become the largest category of abrasive tools in China. At the same time, the application of grinding wheels in polishing will be greatly promoted because of the unique advantages of grinding wheels in the late grinding industrial chain. It is preliminarily predicted that Chinese abrasive products will occupy 3/5 of the world's demand for additional products of abrasive tools. As one of the main types of abrasive tools, the high quality metal grinding disc is also facing a better development situation.

Grinding wheel installed on the grinder

Special attention should be paid to the installation of the fast cheap metal grinding disc on grinding machines. Because the wheel is working at high speed, it should be carefully checked before use and no cracks are allowed. The installation must be reliable and should be adjusted through static balance so as to avoid adult and quality accidents.

The inner hole of the fast cheap metal grinding disc and the outer circle of the wheel shaft or flange cannot be too tight. Otherwise, the grinding wheel will expand and crack easily when grinding. Otherwise, the grinding wheel will be prone to eccentricity, lose balance and cause vibration. The general fit clearance is 0.1~0.8mm, and the clearance of the fast cheap metal grinding disc is smaller. When grinding wheels are clamped with flanges, the diameters of the two flanges shall be equal, and the outer diameters shall not be less than 1/3 of the outer diameters of the grinding wheels.

Thick cardboard or oil-resistant rubber is used as the backing between the flange plate and the end face of the fast cheap metal grinding disc to make the pressure evenly distributed and the tightening force of the nut cannot be too large, otherwise, the grinding wheel will break. Pay attention to the direction of the fastening thread, should be opposite to the direction of the grinding wheel, that is, when the grinding wheel rotates counter-clockwise, with the right-hand thread, so that the fast cheap metal grinding disc in the grinding force, will drive the nut more tightly.

What are the advantages of the diamond grinding wheel than manual grinding?

Diamond high efficient metal abrasive disc has high speed and less heat dissipation time, so the wear volume is large. This is because the diamond abrasive is poor in heat resistance and easy to carbonize, but in manual grinding, because of the low grinding speed, the wear of diamond abrasive decreased. This is due to low grinding speed, long heat dissipation time and low grinding temperature. It can be seen that diamond abrasive is not only high in life but also economical in low-speed manual grinding.

The diamond China high efficient grinding disc rotates at a certain speed and rubs across the contact surface of the two electrodes at a certain pressure. At the same time, the grinding fluid is sprayed into the contact surface between the two electrodes and the grinding wheel. When the power supply is switched on, the contact discharge between the electrode and the diamond grinding wheel occurs, thus causing the discharge erosion of the metal bond of the grinding peak and the diamond. The stone particles are partly exposed and prominent. In this way, diamond grinding wheels can be repaired.

Diamond cheap grinding disc grinding than the advantages of manual grinding is described above, my company engaged in the grinding wheel industry for more than ten years, has rich production experience, product quality guarantee, if you need to consult or purchase you can call our company's service hotline!

Matters needing attention in grinding wheel replacement

High quality 9'' grinding wheel also has service life, life can be long or short, use attention to avoid some problems can make the service life of the grinding wheel longer, if the use of the wheel is not careful enough, often let the grinding wheel receive some damage, the service life of the grinding wheel will naturally be greatly reduced.

When the high quality 9'' grinding wheel problems cannot continue to use, it is necessary to replace the wheel, grinding wheel in the process of replacement should also pay attention to some problems, the following to see what are the problems?

Wear problem: any grinding wheel has its certain wear requirements, wear to a certain extent will be replaced by a new grinding wheel. In order to save materials, it is not a safety violation to save materials. Generally speaking, new grinding wheels should be replaced when the high quality 9'' grinding wheel is worn to the diameter of 10mm larger than the chuck diameter.

Points for attention when using grinding wheels

We are not familiar with grinding wheels. They are also called consolidation abrasives. It is generally composed of abrasives, binders and blowholes. These three parts are often referred to as the three elements of the consolidation grinder. When we use the fast 9'' grinding wheel, the following are matters needing attention.

1.front operation problem. In daily use, many operators are accustomed to operating toward the grinding wheel, because this direction can be used, in fact, this behavior should be particularly prohibited in the operation of the grinding wheel. According to the operation rules, when grinding the workpiece with a grinding wheel machine, the operator should stand on the side of the grinding wheel, not on the front of the grinding wheel to operate, so as to avoid grinding wheel fault flying out of injury.

2.common operation problems. In the actual daily operation, there are also such cases, some people in order to catch up with production tasks, rush to work time, two people share a grinding wheel at the same time, this is a serious violation of the operation, should be strictly prohibited.

3.side grinding problem. According to the rules, the fast 9'' grinding wheel with circumferential surface as working face is not suitable for side grinding. The radial strength of this kind of grinding wheel is larger, and the axial strength is very small. If the operator exerts too much force, the grinding wheel will break, even injure people.

4. forced operation. In the use of the grinding wheel machine, some operators, especially young operators, in order to grind faster, too much force, this is a very unsafe operation behavior. The flatness of any grinding wheel has a certain strength, so it is likely to cause the grinding wheel to break, or even fly out of injuries, is also a prohibited behavior.
We must be very careful when we use the fast 9'' grinding wheel. Today we mainly talk about how to pay attention to grinding wheels. The quality of grinding wheels manufactured in our factory is guaranteed. If you look at the above points and use them properly, the service life of our grinding wheels will be prolonged.