粉末冶金粉體常見(jiàn)的制備方法及綜述(完整版)
【正文】 At present, our country metallurgy industry overall technology level is low, the backward technology and equipment, with foreign advanced level of technology pared to exist bigger difference. This paper introduces the powder metallurgy powder preparation method, including physical methods and chemical methods, physical methods including mechanical crushing method, chemical method includes a vapor deposition method, spray method and the electrolytic method, vapor deposition, spray method and the electrolytic method currently in the industry has been widely used.Key words: powder metallurgy。制造鐵的第一個(gè)方法實(shí)質(zhì)上采用的就是粉末冶金方法。 from the hardware to the large machinery。這些粉末可以純金屬，也可以是非金屬，還可以是化合物。（4） 介質(zhì)攪拌式 是依靠磨腔中機(jī)械攪拌棒、齒或片帶動(dòng)研磨介質(zhì)運(yùn)動(dòng)，利用研磨介質(zhì)之間的擠壓力和剪切力使物料粉碎。新近開(kāi)發(fā)的粉碎法有：液流式、射流粉碎機(jī)、超低溫、超臨界、超聲粉碎機(jī)等。注：%），然后加熱（通過(guò)電阻、等離子體、電子束、激光、高頻感應(yīng)等加熱源）蒸發(fā)源，使物質(zhì)蒸發(fā)成霧狀原子（氣化或形成等離子體），與惰性原子碰撞而失去能量，然后驟冷，隨惰性氣體流冷凝到冷凝器上。如各種金屬、氮化物、碳化物、硼化物等。 霧化法是將液體金屬或合金直接破碎成為細(xì)小的液滴，其大小一般小于
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