Adaptation Of Molybdenum Powder Process Control And Subsequent Processing Of Non-agglomerated State

"Powder diversification, products precision" has gradually become the modern molybdenum powder metallurgical technology development direction, and the development of a series of molybdenum powder metallurgy of new technology, new technology and its process theory, these studies is the focus of the powder and products of the structure, morphology, mechanical properties. The study of reunion, molybdenum powder of process control and subsequent processing adaptive genetic effects caused by, help with the actual production situation analysis raw materials, molybdenum powder performance and morphology, and find out the influence factors of reunion, molybdenum powder, molybdenum products improve performance, combing change rule, so as to solve the actual production of the product quality problems appear to provide theory support and technical ideas.On the basis of metal branch, molybdenum powder and molybdenum products, this paper according to the reunion of molybdenum powder mechanism and affecting factors, the existing problems of the ELINO for molybdenum powder production line production characteristics, a systematic analysis of the raw material, hydrogen, reduction temperature, thickness, takt time five factors of molybdenum powder together the influence of by the mathematical statistical method to the volatility of the chemical index materials statistical, confirm the reunion is molybdenum powder of raw materials preferred method and process control points.The molybdenum slab repression and molybdenum sintering experiment in the metal branch molybdenum products factory, through the experimental research found that the molybdenum powder pressing a reunion of slab pore distribution rules, porosity moderate, better formability of compressibility, is a bit poor, elastic lagged relatively small, high yield; Sintering and into the density distribution of slab even, density and the relatively large hardness value. In on microscopic performance for the reunion, molybdenum powder sintering and suppression of slab hole, shrinkage into less, crystal like organization uniform, reasonable distribution of grain size.The molybdenum slab the subsequent process of experiment are outsourcing processing, molybdenum plate rolling in experiments through the many kinds of processing, mechanical property testing, we can see that the reunion, molybdenum powder sintering and into the suppression of slab ultimate slightly low ratio, with good plastic and deep blunt performance, tracking experimental results indicated that have lower fire consumption, total yield high research conclusion; In molybdenum round piece of stamping experiments found molybdenum powder sintering and suppress reunited into of slab in stamping process in11.73%of the peripheral crack situation, analysis the low density of the slab, porosity shrinkage and spheroidization not completely caused the stress concentration of the slab and intensity drops, is a leading cause of low yield.