The Rapid Development of Cemented Carbide Production and Preparation Technology
Since the 1980s, the outstanding features of the development of the world cemented carbide industry are: on the one hand, the coated cemented carbide has developed rapidly, its output has increased significantly, and its application fields have been continuously expanded. It has been successfully used in heavy machining processes such as cutting. The production of coated inserts by famous cemented carbide manufacturers such as Sandvik, Kennametal, and Iscar has accounted for more than 85% of the indexable inserts.
At the same time, great progress has been made in coating technology. Colleagues who have further improved and perfected traditional high-temperature chemical vapor deposition methods have also successfully developed and applied medium temperature chemical vapor deposition methods, various physical vapor deposition methods, and both physical vapor deposition methods. And the plasma chemical vapor deposition method with the characteristics of chemical vapor deposition, etc. In addition, in terms of cemented carbide coating substrates, not only special substrates for various processing coatings have been developed, but also coating substrates with cobalt-rich layers and β have been developed in Japan, Sweden, etc., which significantly improves the strength of the coated cemented carbide expands the application range of the coated cemented carbide.
On the other hand, ultra-fine alloys appeared in the early 1970s, the earliest being Sandvik's R19, and then some companies in the United States and Japan also successively launched ultra-fine carbide grades. With the rapid development of the electronics industry and the machining industry, the rapid development of ultra-fine cemented carbide in the 1980s has been promoted, the quality has been continuously improved, and the output has been continuously expanded.
Around 1984, Japan's Sumitomo Electric Co., Ltd. trial-produced the double-height AF1 alloy, which was the highest in the world. Subsequently, famous manufacturers such as the United States, Sweden, and Germany have successively developed ultra-fine cemented carbide with better and better performance. For many world-renowned cemented carbide manufacturers, ultra-fine cemented carbide is the same as high-precision and high-performance coatings. Carbide is a product they are proud of.
The low-pressure hot isostatic pressing technology, which was successfully developed in the 1980s and quickly popularized, is a breakthrough in the field of cemented carbide production technology, which makes the low-cost production of cemented carbide products very close to the theoretical density a reality. Since the advent of the first low-pressure hot isostatic pressing equipment successfully developed by the American Ultra High-Pressure Company in 1989, in just a few years, the technology has achieved rapid development, almost all over the world, and the quality of the entire cemented carbide has been greatly affected. improvement plays an important role.
In the 1980s, another feature of the development of the world cemented carbide industry is that cemented carbide products are developing in the direction of precision and miniaturization, in addition to high-tech products such as micro twist drills, dot matrix printing needles, and precision molds. The requirements for the dimensional accuracy of cutting tools are also getting higher and higher. Some advanced manufacturers have eliminated the accuracy standard of U-grade carbide inserts. At the same time, the size of many carbide molds has reached the micron level and super micron level. In addition, the equipment and production line automation, intelligent, and promote the continuous development of the cemented carbide industry towards newer and higher fields.
（PS: Both of the A Brief History Of Cemented Carbide Development (Part 1 & 2)）are from the Baidu Library)
Below are a few precision machining and carbide brazing products that we manufactured.
Carbide Inserts Carbide Grinding Disc Carbide Roll Rings
(For woodworking or other usages)
Carbide Valve Seats Carbide Spraying Nozzles Carbide Brazing Tips
