发明授权
US3694528A Method for making spherical beads 失效
制造球形方法

Method for making spherical beads
摘要:
A method is provided for pelletizing molten materials which consists in feeding the material to be pelletized downwardly through a vertical refractory tube through a controlled atmosphere and discharging the same horizontally from a rotating circular edge across the surface of a fluid coolant.
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