临界点落点fallingpointrotationsmallsteelballforceactionbasicregulationmill转速慢泻落状态摩擦效果grinding转速快抛落状态摩擦撞击破碎转速快抛落状态撞击破碎colliding只一个球onlyoneball球直径比桶直径小球受到两个力作用twoforceacting离心力centrifugeforce线速度linearvelocitysmallball
• Same to American,日本Japan的汽车工业的发展带动了
粉末冶金工业发展。
• Different to China与中国不一样,the western countries
and Japan西方或日本的粉末冶金工业是由两部分构成 conbined by two part
• 制粉公司:制备各种粉末:Companies to fabricate and
(组元)or uncommon shapes.
粉末冶金发展 History and development of P/M
历史部分: 武器, 生活用具, 艺术建筑
• Weapon, life facilities, arts-construction, etc.
现代部分: 硬质合金, 高温材料, 汽车部件, 军事工程
contain oxide that induce materials brittle.
powder fabri., powder compaction, sintering and surface treatments.
• R&D of novel materials and products.
Powder Metallurgy Processing