The reason of using strong carbide to form elements in the sintering of diamond bit

Publish Date:2020-04-27
In the sintering process of diamond segment, the use of metal powder which does not react with diamond at high temperature does not damage diamond, but diamond is controlled by matrix in cutting. If the matrix powder does not react with diamond, its holding force is only mechanical inlay. This kind of mechanical inlay force is weak, which is easy to cause the diamond to fall off during the use of the saw blade, thus reducing the service life and efficiency of the saw blade. If the matrix powder reacts with diamond to a certain extent, which causes the chemical binder between diamond and metal powder, the bond force is much greater than the mechanical inlay force, so as to ensure that the diamond does not fall off in the use process, improve the matrix's holding force on diamond, and improve the life and efficiency of the saw blade. Of course, if the metal powder used in the binder reacts violently with diamond at high temperature, it will lead to diamond carbonization and reduce the strength, thus reducing the life and efficiency of the saw blade. According to analysis, if there is iron in the matrix above 900 degree, diamond begins to infiltrate into iron in the form of carbon element, causing corrosion to the diamond surface; the temperature continues to rise to 1200 degree, and diamond can even penetrate into iron completely. Therefore, it is necessary to control the reaction speed of metal powder and diamond, so that it can form chemical bond with diamond, and it will not cause excessive carbonization of diamond and affect its strength. In order to control the reaction degree between diamond and metal powder, other chemical elements can also be added to the matrix.

Tags: segment

The control ratio of the metal content in the diamond segment bond

2020-08-17
The diamond segment is composed of two parts of the bond and the diamond, and the bond is actually not just one component, it is made of paraffin, nickel, tin, zinc, copper, iron, silicon carbide, tungsten and other metal powders, and non-metallic powder, in which copper, iron, silicon carbide and tungsten are the main components, while nickel, tin, and zinc are the metal binders, which make the diamond and the bond more firmly....

Selection of diamond powder for diamond segment

2020-09-24
During the diamond segment working process, the role of diamond powder crystals is very important, especially in the cutting process, a good crystal can be very good in anti-breakage ability, reduce the power consumption of the equipment, and extend the life of the cutting....

Arrayed diamond segment and the saw blade

2020-12-29
In traditional diamond segment products, the diamond powder in the segment is arranged in disorder. During the cutting process, the exposed diamond will impact the stone surface at various angles, and the exposed height of the diamond will vary. As a result, the diamond is not evenly stressed, and diamonds with high exposure are prone to fracture. In order to improve this situation and make the diamond distribution more uniform, arrayed segments have emerged. Weld the arrayed segment on the blade steel body to be an arrayed saw blade....

Commonly used bond for diamond segment

2020-09-09
There are four commonly used bonds for diamond segment. These four bonds are matched with different diamond powders according to different materials to make diamond segments for different purposes. Each bond has its advantages and disadvantages. In the process of designing the diamond segment, we must take advantage and reinforce its shortcomings. This is the charm of diamond segment production and design....

Common problems and treatment methods of diamond segment

2020-08-17
Diamond segment is a non-standard industry in modern industry. The instability of product quality is the most common problem. The following are some of the most prone problems and related solutions in producing diamond segments. Through these instructions, Let everyone better understand the details of diamond segments production process....

Formula design of diamond segment

2020-10-16
Diamond segment is a very special segmented product. Through different formulas and different processes, products with different appearances, different cutting performances and different cutting life can be produced. The most attractive part of this product is that it is not Certainty, especially the new formula, needs to consider factors such as the object to be processed, the matrix metal bond, diamond grade and particle size, pressure and sintering temperature....