liào qiú ㄌㄧㄠˋ ㄑㄧㄡˊ 料球
机械毕业设计-机电毕业设计论文-模具数控毕业设计专业订做-中国诚信机械毕业论文网 关键词: 成球；预加水；刮刀；料球 [gap=2024]Key words: pelletizing; prewatering; drawknife; raw meal pellet
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通过改进成球工艺，使料球小而光滑；
Small pelletized raw meal with smooth surface were obtained through the modification of pelletization process.
滚动托料球，减少板料划伤，并可减少摩擦阻力。
Rolling material support ball is set, to minimize fish tail with sheet bar and to reduce frictional resistance.
同时，本文还对PBGA钎料球激光重熔进行了试验研究。
At the same time, experiments on PBGA solder ball laser reflow were carried out.
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