BELL CUP OF ROTARY ATOMIZATION TYPE COATING APPARATUS

A bell cup (3) is fitted to the tip end of a rotary shaft (13) of a rotary atomization type coating apparatus (1), a coating material being discharged from a feed tube (15) inserted into the rotary shaft onto a coating material diffusion surface (31) on an inner surface of the bell cup, and the regi...

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Bibliographic Details
Main Authors ONO, Takamitsu, IWAYA, Masaaki, KAZAMA, Shigenori, GOTO, Takeshi
Format Patent
LanguageEnglish
French
German
Published 25.03.2020
Subjects
APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
ATOMISING APPARATUS
NOZZLES
PERFORMING OPERATIONS
SPRAYING APPARATUS
SPRAYING OR ATOMISING IN GENERAL
TRANSPORTING
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Summary:A bell cup (3) is fitted to the tip end of a rotary shaft (13) of a rotary atomization type coating apparatus (1), a coating material being discharged from a feed tube (15) inserted into the rotary shaft onto a coating material diffusion surface (31) on an inner surface of the bell cup, and the region of the coating material diffusion surface extending from a prescribed position on the proximal end side to the distal end edge is constituted of a curved surface that protrudes in a convex manner toward the rotary shaft. The outermost surface of at least a portion (31B) of the coating material diffusion surface is covered by a diamond-like carbon film (50) that does not include silicon at least in the outermost surface thereof.
Bibliography:Application Number: EP20170910230