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烧结粉末金属时,把氮作为保护气氛来使用是得到极其迅速发展的应用项目之一。粉末金属工件的烧结制作过程需要一个或几个阶段以获得特定的物理化学性能,而烧结工艺参数影响到烧结作业最后得到的结果。象烧结炉各区的温度、化学气氛这样的工艺参数,它们会对烧结件最终物理性能产生很大的影响,因此,操作时必须始终控制和调整炉内的化学气氛。冶金行业对这方面都有丰富的经验。典型的烧结炉温度控制曲线如图1所示,图中给出了特定烧结区的温度和不同的
Sintered powder metals, the use of nitrogen as a protective atmosphere is one of the extremely rapidly developed applications. Sintering of powder metal workpieces requires one or several stages to achieve specific physicochemical properties, and sintering parameters affect the final result of the sintering operation. Like sintering zone temperature, chemical atmosphere of such process parameters, they will have a final physical properties of sintered parts have a significant impact, therefore, the operation must always control and adjust the chemical atmosphere in the furnace. The metallurgical industry has extensive experience in this area. Typical sintering furnace temperature control curve shown in Figure 1, the figure shows the specific sintering zone temperature and different