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US3995979A Apparatus for lubricating moulds for blanks 失效
用于润滑坯料模具的装置

Apparatus for lubricating moulds for blanks
摘要:
An apparatus for lubricating the internal wall of moulds for blanks comprises a corona charger for charging electrically the lubricant which is then injected into the mould. This latter is maintained at an electric potential such as to attract the lubricant and cause it to be deposited on the inside walls of the mould.
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