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How to select the diamond hardness of the segment?

Od:
wanlongmachines 
Data:
7 grudnia 2022, 04:52
Ocena:
Ocena 0.00

The raw materials of the diamond segment include diamond powder, and most of these diamonds are synthetic diamonds. With the development of synthetic diamond technology, when people choose diamonds, if they consider the hardness, they can make adjustments as needed. Generally speaking, the higher the hardness, the higher the stability of the diamond, the more difficult it is to break, and the higher the price. Many people believe that the higher the hardness of the diamond in the segment, the better the quality of the segment. In fact, Not so. Let's analyze the reasons

The diamond segment is formed by sintering both diamond and matrix binder. The sintered diamond segment has stable physical properties and incomparably hard materials. Stone can be cut by diamond exposed on the surface. If the hardness of diamond is low, the stone and diamond will collide violently in the process of cutting stone, and the diamond is easy to break, resulting in diamond falling off. Such segments cannot cut stone

However, if the hardness of the diamond in the diamond segment is too high, and the diamond is abnormally stable during cutting without fracture, then the entire impact force acts on the segment and the saw blade. If the welding is not firm or the quality of the matrix is poor, it is easy to fall off the segment and deform the saw blade And the diamond is constantly worn with cutting. Because of the high hardness of these diamonds, the worn diamond cutting surface is rounded, and the rounded diamond does not have the cutting ability. With continuous cutting, the stone cannot be cut, and the processing efficiency is reduced

How to choose the hardness of diamond? To answer this question, we should start with the most perfect cutting state of segment cutting. When segment cutting stone, the consumption of diamond is divided into the consumption of natural wear and the crushing of diamond caused by impact force. When the natural wear of diamond reaches a certain degree, with the increase of the depth of the blade, the impact force increases, and the increased impact force can just damage the rounded diamond, thus forming a new edge, Such diamond hardness is the most appropriate

The above mentioned parameters are all about the hardness of the diamond segment, but the particle size, concentration and hardness of the diamond are often integrated attributes. The other two attributes can only be determined after understanding the binder formula, cutting objects, applicable machinery, customer requirements and other aspects

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