BaoJi Yuan Da Metal Materials Co., Ltd is well known as the largest specialized base for production,development and marketing of refractory metal.

        Today share you with the refractory metal

       The so-called refractory metal, generally refers to the melting point higher than 1650 degrees or simply, the melting point is higher than the white gold (Pt) and has a certain reserve of metal (the following diagram is the melting point of the metal curve).These metals include tungsten, tantalum, molybdenum, niobium, hafnium, chromium, vanadium, zirconium, rhenium and technetium. The refractory metals used to manufacture high temperature structural materials above 1093 C (2000 degree F) are mainly tungsten, molybdenum, tantalum and niobium.

      In nature, tungsten and molybdenum exist mainly in the combined state. For example, molybdenum exists in the form of MoS2, Mo-gloss and PbMoO4, and most of them are associated minerals. Tungsten exists in the form of (Fe, Mn) WO4, CaWO4 and Wolframite Wolframite. The distribution of these minerals is not uniform. It is gratifying to note that the reserves of these two metals are mainly in China. But at present, China can only say that these two metals are big resource countries. There are still many ways to go from the target of tungsten and molybdenum power. This is not only a question of capital, but a question of accumulation of talent and experience, and whether there is a market for healthy growth. The Chinese have always been good at fighting, and the low cost and disorderly vicious competition has made some domestic enterprises with technological advantages unbearable.

     There are three ways to smelt tungsten and molybdenum in tungsten and molybdenum: powder metallurgy, electron beam melting and vacuum arc melting. In the process,

      The latter two ways have melting process, and the first way has no melting process. However, in terms of application scope and material properties,

    Powder metallurgy has the dominance of absolute dominance. This is also related to the natural advantages of powder metallurgy process that can not be controlled by melting process in the control of metal grain morphology and dispersion alloy production.

       This is a very simplified process which is easy for you to understand. In fact, every step of this process can have an important impact on the quality and performance of the final product. For example, the refining process of raw materials, from ore to oxide, is very complicated. The particle size, particle morphology and purity of oxide powder have a decisive impact on the final product. The size of the sintering furnace determines the final size of the finished product. The control of sintering process determines whether the final product can achieve the expected performance.

if you are looking for refractory metal,contact us in no time: 

EMAIL:rmd1994@yeah.net