Method of making a centrifugal pump impeller
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United States of America Patent
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Nov 3, 2020
Grant Date -
Dec 28, 2017
app pub date -
Jun 20, 2017
filing date -
Jun 28, 2016
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Abstract
A method for producing a centrifugal pump impeller having a base plate, which is a single piece with pump blades and a cover plate, which consists of a thermoplastic material, wherein contact areas are available, which are heated and melted by means of ultrasonic excitation and form a close bonded connection after cool-down. The objective of the invention is to ensure inherent stability with the individual parts and a simple and reliable pre-assembly as well as a fixed mechanical connection, wherein only a small amount of excitation energy is required, with a centrifugal pump impeller comprising a base plate and cover plate.
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