The Refractory alloy sintering can be divided into six stages. 1. Agent Removal & Burning Stage With the rising of temperature, the molding agent gradually decomposes or vaporizes with the sintered body left. At the same time, the molding agent more or less adds carbon to sintered body. The rising amount of carbon changes with […]
Sintering is a hot processing method to produce refractory metals. First, heat the powder compact to the sintering temperature for a certain period of time. Then, wait it to cool down and the refractory materials with required functions will be produced. Sintering makes the porous powder compact into a product with certain structures and properties. […]
Refractory metals are referred to elements or alloys with melting points over 3002℉, such as tungsten, molybdenum, tantalum, niobium, titanium, zirconium, hafnium, vanadium, chromium, rhenium and alloys including tungsten alloys, molybdenum alloys, niobium alloys, titanium alloys, vanadium alloys, chrome alloys, rhenium alloys, chromium and zirconium alloys, tantalum and button alloys, etc. Refractory metals usually can […]
Tungsten is a metal element with atomic number 74 and atomic weight 183.84. It’s usually steel gray or silver white with high hardness and high melting point. It has air corrosion resistance at room temperature. The main application of tungsten is manufacturing filament, high-speed cutting alloy steel, and super-hard mold. Besides, tungsten is also […]
Definition of Refractory Metal Refractory metals are referred to metals with melting points over 3632°F and certain amounts of reserves, including tungsten, tantalum, molybdenum, niobium, hafnium, chromium, vanadium, zirconium and titanium. Usually refractory metals have great densities and weigh heavily. With refractory metal as matrix, the alloys added with other elements are called refractory metal […]
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