Cách chọn loại Đá mài Kim cương / cBN phù hợp ?

Vì hạt nhám "superabrasive" có nhiều ưu điểm vượt trội so với hạt nhám truyền thống, nên có hiệu suất mài rất cao và đang được sử dụng ngày càng rộng rãi hơn.

Các tính năng của Đá mài Kim cương

Bản thân hạt nhám "Superabrasive" có độ cứng rất cao nên có thể xử lý nhiều loại vật liệu có độ cứng khác nhau, đặc biệt là đối với những vật liệu khó (hoặc không thể) xử lý bằng vật liệu mài mòn thông thường.

Khi sử dụng Đá mài Kim Cương / cBN, sự hao mòn (do sử dụng) rất nhỏ, do đó thời gian sử dụng sẽ được lâu hơn nhiều, cùng với hiệu suất mài cao, giúp Đá mài Kim cương / cBN mang lại hiệu quả kinh tế cao hơn.

Khả năng giữ được độ sắc tốt, không cần thay thế và sửa thường xuyên nên giảm thời gian chết khi sản xuất, tăng hiệu quả công việc và thuận lợi trong quá trình xử lý.

With sharp cutting and small grinding force, the superabrasive is good for improving the processing accuracy and surface roughness of the machined parts, reducing the power consumption of the machine tool.

Sharp abrasive grains make the grinding temperature of the grinding tool in the processing is lower than that of conventional abrasive tool, which can greatly improve the quality of the surface to be processed, reduce and avoid the crack, burn, metallographic reorganization, and other defects, thus improving the service life of the parts and greatly improving the overall economic indicators.

In view of the unparalleled superiority of superhard grinding, with the continuous emergence of new materials and new technologies, the technological advancement of processing industry, its application has been continuously expanded, and the usage has been increasing, which has strongly promoted economic development.

However, due to the high tool cost of the superabrasive grinding wheel and its own unique performance and regularity, improper use will only cause serious waste, but also fail to obtain satisfactory processing quality and excellent economic effects.

Choose the right features of the superabrasives grinding wheel

Superabrasives are different abrasive tools from conventional abrasive tools. Its structural forms are different, and they have unique features. The features of superabrasives refer to abrasives, grain size, bond, concentration, shape, and size.

Selection the grain of Superabrasive grinding wheel

Superabrasives mainly include diamond and CBN (cubic boron nitride). The diamond used for superhard grinding wheels mainly refers to synthetic diamond, and natural diamond is basically not used for making abrasive tools.

Synthetic diamond and cubic boron nitride are both synthetically synthesized under high temperature and high pressure, features high hardness, good sharpness and wear resistance. Nature is still very different, so the application has a clear division of labor.

Diamond is the hardest material recognized by the human in nature. It has excellent hardness, strength, grinding ability, thermal conductivity, and thermal expansion coefficient.

It can process many hard materials such as tungsten carbide, ceramics, gemstones, glass, stone, building materials, concrete and semiconductor materials. However, since diamond is an allotrope of carbon, it is easy to have a chemical reaction with iron group elements of steel at the higher temperature, causing strong chemical wear, which directly affects the grinding performance and loss of the abrasive tools, so it is not suitable to process the steel.