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News

What method can effectively improve the performance of diamond cutting discs?

  • Author:Dora Zhang
  • Release on:2020-05-29
The most commonly used cutting tools for stone processing are cutting blades. Therefore, the requirements of diamond saw blades are also increasing. Therefore, many saw blade manufacturers are working on new types of stone technology and equipment to produce high-quality and durable at the lowest cost. To meet the needs of the market.

Many manufacturers have summarized many methods to improve the performance of diamond saw blades. Here are eight ways to enhance the performance of cutting blades:

What method can effectively improve the performance of diamond cutting discs?


1. Adopt cold pressing and hot sintering process to perform vacuum protective atmosphere sintering. The blades that are sintered after cold pressing are very sharp during the sawing process, the production efficiency is much improved, and the vacuum protective atmosphere sintering can prevent powder oxidation and activation sintering, which not only improves the performance of the cutter head, but also extends the life of the graphite mold It can also reduce production costs.

What method can effectively improve the performance of diamond cutting discs?  


2. Saw blade for proper welding process, the current diamond blades are all welded by gas welding, and it is easy to cause secondary "burn" of the cutter head and the gap between the cutter head when welding. Not only is it unsafe, but also affects production, so high-strength, goodpermeability silver solder pieces should be used to carry out welding processing production.

What method can effectively improve the performance of diamond cutting discs?


3. Superfine powder and pre-alloyed powder are used. Ultra-fine powder is helpful to reduce the sintering temperature and increase the hardness of the carcass. The pre-alloyed powder, through three-dimensional three-dimensional mixing, greatly shortens the contact time between the powder and the air, prevents the premature loss and segregation of low-melting metal, and helps to improve the strength of the sintered products and increase the holding power of diamond.

Superfine powderpre-alloyed powder

4. Add appropriate amount of rare earth elements (such as rare earth lanthanum, cerium, etc.) to the carcass powder. It can obviously reduce the performance of the bonded cutting blade and improve the cutting efficiency of the diamond saw blade.

5. Improve the particle size ratio of diamond. In the traditional ratio, the cutter head is sharper, and more coarse-grained diamonds are used; otherwise, fine-grained diamonds are used. But the best work efficiency has not been achieved.
Due to the high hardness and elastic modulus of diamond, plastic deformation is difficult to occur during sintering at high temperature. Choosing a good ratio to improve the packing density of diamond particles before sintering is beneficial to improve the wear ratio of the tool.

6. High-strength diamond with stable production performance, coarse particles and good thermal stability is adopted. Diamond tools are basically fixed by diamond and carcass on the working substrate under certain process conditions, mainly by diamond abrasive and cutting to process different stones. Therefore, the quality, particle size and concentration of diamond play a decisive role in diamond tools.

7. Add strong carbon powder elements to improve the diamond holding power. In the processing of diamond saw blades, if the cutter head carcass has a good grip on the diamond, the diamond will have a good edge, will not fall off prematurely, and will be sharp and efficient during cutting.
In addition, a small amount of molybdenum, chromium and tungsten powder can be added to the carcass powder. Due to the good wettability and affinity of this type of powder for gold and corundum, the formation of a carbide alloy on the surface of diamond and carcass metal during sintering is beneficial to the chemical bonding and metallurgical combination of diamond and carcass metal, thereby greatly improving the tire The body's grip on diamonds.

8. Improve the production technology and equipment quality of the saw blade; the quality of the saw blade is closely related to the production process and equipment of the saw blade. High-quality production technology or equipment can improve the quality and performance of the saw blade; many manufacturers are carrying out Research is trying to get a breakthrough.