Provided is a coil spring manufacturing method. In the coil spring manufacturing method, a coil spring of a vehicle suspension member is immersed in a fluidized bed in which powder coat is fluidized for coating. The fluidized bed includes a vertical stream area in which the powder coat moves upward and downward. The coil spring is immersed in the vertical stream area of the fluidized bed while an end coil of the coil spring faces upward, and is periodically subjected to a relative movement with respect to a direction containing components vertical to a central axis of the coil spring in relation to the vertical stream area.
Coil spring manufacturing method and coil spring manufacturing device
2021-07-20
Patent
Electronic Resource
English
IPC: | B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL , Verfahren zum Aufbringen von Flüssigkeiten oder von anderen fließfähigen Stoffen auf Oberflächen allgemein / B05C Vorrichtungen zum Aufbringen von Flüssigkeiten oder von anderen fließfähigen Stoffen auf Oberflächen allgemein , APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / F16F SPRINGS , Federn |
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