Super cemented carbide material on the basis of universal cemented carbide composition, add rhenium, ruthenium, osmium, molybdenum, vanadium, tantalum, niobium and other superalloys in one or several refractory high-temperature metal components, so that compared with ordinary cemented carbide, it has more excellent high strength, high hardness, high temperature resistance and other characteristics. Among them, the most obvious point is that the addition of trace rhenium elements in cemented carbide can greatly improve and improve the physical properties of cemented carbide materials, especially red hardness and alloy stiffness (elastic modulus). Rhenium can strengthen the solid solution of the original bonding phase metal (iron, cobalt, nickel) in the cemented carbide, so that the "industrial tooth" material, which is originally high in hardness, is more like a tiger. Especially in response to nickel-based superalloys, heat-resistant stainless steel, titanium alloy, tungsten, molybdenum, tantalum, niobium, zirconium and hafnium special alloys such as difficult to process materials of high-speed cutting and precision processing, the use of super carbide new materials prepared cutting tools and mold products, has an extraordinary cost-effective replacement advantages.

Rheniumet precision tool , is Rheniumet Super Carbide Ltd. to specifically deal with and overcome all kinds of high-temperature alloy and other difficult materials machining technology problems, developed a series of cutting, cutting, polishing, stamping processing characteristics of the mold product brand. Jingang Precision uses super hard alloy new materials with rhenium and other superalloy components, complemented by the latest surface coating technology, to produce and create all kinds of CNC cars, milling blades, integral hard alloy end mills, drill bits, high-speed, precision, anti-cracking deformation, high wear resistance stamping die and cold work die products. These die products are the use of the super alloy in the "rhenium effect" added common characteristics, the super alloy's high strength, high temperature resistance, high heat resistance corrosion advantages creatively grafted and transplanted to the traditional cemented carbide material inside. Through the investigation and statistics in the cutting practice of the majority of users, it is found that the addition of super carbide cutting tools with rhenium, ruthenium and other components has greatly improved its high temperature red hard energy, mechanical properties and comprehensive service life, processing efficiency and processing accuracy. In the specific selection of workpiece materials, super carbide cutting tools and molds provide special characteristic grades to cope with different kinds of difficult to process workpiece materials, such as nickel-based superalloy, Inconel718, heat-resistant alloy 625, tungsten alloy, molybdenum alloy, tantalum niobium alloy, zirconium and hafnium alloy, titanium alloy and so on. Compared with ordinary carbide tool mold more applicability and cost-effective advantages.

Carbide tool series

fricition stir welding

After six years of research and development, in 2021, Ms. Qin Hanmei, the founder of Hunan Rheniumet Materials Group, officially proposed a new material concept of "super carbide" for the first time, and the technical team led by her in China developed a new high-performance carbide material involving the addition of refractory metal components including rhenium elements. The process is characterized by the uniform configuration, the addition of refractory metal components including rhenium elements, tungsten carbide powder mixture, after pressing forming, in a specific atmosphere and pressure under the appropriate temperature system for sintering, super tungsten carbide product blank, and then through precision machining or advanced surface coating strengthening process, super tungsten carbide die product. Due to the addition of refractory metal elements such as rhenium, it can significantly inhibit the grain growth of tungsten carbide (WC) during the sintering process. In the process of carburizing, rhenium reacts with carbon, but the rhenium carbides produced at the same time have a greater inhibition on the carburizing reaction, resulting in a lower rate of gradient layer formation. In the practice of production technology, by properly extending the carburizing time, it not only solves the problem caused by the reduction of the formation rate of the gradient layer, but also makes the carburizing reaction more adequate and the surface cobalt (Co) content is lower, so that it becomes a new super cemented carbide material with excellent performance.

The advent of super cemented carbide materials has contributed to technological innovation in the military industry, aerospace, precision and efficient machining, new energy, automobile, 3C, metallurgy, oil drilling, mining tools and other industries, and in the fields of high-tech weapons and equipment manufacturing, cutting-edge science and technology progress, and nuclear energy. It has vigorously promoted the process of localization of China's high-end cemented carbide products to replace imports, and also promoted the overall scientific and technological level of China's equipment industry to improve and develop.