Method for manufacturing telescopic shaft
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United States of America
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Feb 4, 2020
Grant Date -
Sep 8, 2016
app pub date -
Nov 10, 2014
filing date -
Nov 10, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for manufacturing a telescopic shaft including a male shaft and a cylindrical female shaft slidably connected to each other in an axial direction, in which an outer circumferential surface of the male shaft or an inner circumferential surface of the female shaft is coated with a resin coating layer, includes a coating step, a broaching step, and a cooling step. In the coating step, a powder coating material is attached, by a fluid bed dip method, on the outer circumferential surface of the male shaft or the inner circumferential surface of the female shaft which is heated in advance and the resin coating layer is formed. In the broaching step, the resin coating layer is caused to be thin by broaching before cooling of the formed powder coating material is completed. In the cooling step, the thin resin coating layer is cooled.
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