Some professional and unpopular knowledge of diamond segment

There is a lot of unpopular knowledge about diamond segments. Knowing these can help you better understand the characteristics and processing principles of diamond segments, so that you can more easily master the method of using it.
1: The diamond segment is composed of two parts, diamond and metal powder. The diamond plays the role of cutting, and the metal powder plays the role of fixing the diamond. So how do these powders play the role of holding the diamond? And how to improve the ability to hold diamonds? These answers are relatively unpopular knowledge. In the application process of diamond segment, if you want to make the diamond work well on the fast-running saw blade, you first need the metal bond to have a certain strength. In addition to the formula requirements, the structural strength of the metal bond has a great relationship with the atomic movement and interaction during the metal sintering process. So the finer the metal powder is, the better the structural strength of the metal bond will be during the sintering process. The way to increase the holding force is to increase the physical holding force of the diamond segment.

Physical holding power alone is not enough for diamonds to work well. People have found that the full utilization rate of diamonds with only physical holding power is less than 50% on average, and even some diamonds have a utilization rate of less than 30%. At this time, people add a layer of metal (currently most is titanium) to the metal bond powder that can be tightly bonded to the diamond surface, so that a more stable chemical holding force is formed between the diamond and the metal bond powder. This method can also prevent the graphitization of diamond during sintering, increase the sintering temperature appropriately, and make the structure of the diamond segment more stable.

2: There are different design formulas for diamond segments. Although the formulas will vary, but the core remains unchanged is the metal bond formula, and the composition of the metal bond is the core element of the formula. For a diamond segment in a certain area, if the applicability of the diamond segment exceeds 50%, then other similar stone materials generally do not need to adjust the ratio of the metal bond material. What needs to be adjusted is only the ratio of diamond, such as concentration, particle size and diamond strength only. Therefore, for stone manufacturers, if the stone factory finds that the diamond segment he purchased is not easy to use, it is necessary to provide detailed data to let the diamond segment manufacturer determine that if it is the metal bond problem. Otherwise, it will generally be adjusted according to the change of the diamond ratio. There is no fundamental problem.

3: The concentration of diamond determines the service life of the diamond segment to a large extent. The more cutting points, the more diamonds are used for cutting, and the cutting efficiency will increase to a certain extent. However, blindly increasing the concentration will also reduce the holding force of the metal bond to a single diamond. The appropriate concentration needs to be continuously tested and adjusted. The process of adjusting and testing is the process of improving the efficiency of the entire diamond segment.
4: There is a strong relationship between the particle size and concentration of diamond, which are mainly divided into the following four relationships: large particle size and high concentration will increase the cost of the diamond segment. Such a diamond segment has a long life, but the price is expensive and the efficiency is not good. The particle size is large and the concentration is small. Such a diamond segment can cut soft stones. But when such a diamond segment cut hard stones, it will be consumed quickly and has a very short life; The particle size is small and the concentration is high. This kind of diamond segment is suitable for cutting granite with a lot of cutting points. However, due to the small cutting distance and weak cutting ability, it is difficult to improve the efficiency; The last one is small in particle size and low in concentration, such a diamond nsegment has almost no cutting performance. The life is too short, and the cutting performance weak.

In view of the above factors, people usually mix diamonds of different sizes. People usually use diamonds of different sizes to mix, use large-grained diamonds to form a high tailing state, improve cutting performance, and use small-grained diamonds to increase the cutting point. In the case of a certain concentration, the versatility of the diamond segment is maximized.

5: The strength of the diamond segment mainly solves the problem of broken segment. It is the most suitable choice to use high-strength diamond for hard stone. If the choice is wrong, for example, use high-strength diamond for soft stone, or use low-strength diamond for hard stone, there will be various cutting problems.