US2016243584A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016243584-A1 |
| Application number | US-201415026203-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 19, 2014 |
| Priority date | Sep 30, 2013 |
| Publication date | Aug 25, 2016 |
| Grant date | — |
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Official abstract text for this publication.
It is an object of the present invention to provide a method for uniformly forming a film on an outer circumferential portion of a metal automotive part by preventing penetration of a coating substance into a portion thereof unnecessary to be coated with paint. The method for producing a columnar or cylindrical metal automotive part whose outer circumferential surface includes a portion to be coated with paint and a portion to be uncoated therewith includes the following processes: (1) a process of providing a convergent nozzle-shaped covering jig which covers an outer circumferential surface of the columnar or cylindrical part at an axial end thereof and covers the portion to be uncoated with the paint, with a gap formed between the covering jig and the outer circumferential surface of the part; (2) a process of discharging a gas from the gap toward an end of a nozzle of the covering jig with the columnar or cylindrical part being rotated; (3) a process of sticking a film-forming substance to the columnar or cylindrical part from an axial side surface thereof.
Opening claim text (preview).
1 . A method for producing a columnar or cylindrical metal automotive part whose outer circumferential surface includes a portion to be coated with paint and a portion to be uncoated therewith, said method comprising a process of providing a convergent nozzle-shaped covering jig which covers an outer circumferential surface of said columnar or cylindrical metal automotive part at an axial end thereof and covers said portion to be uncoated with said paint with a gap formed between said covering jig and said outer circumferential surface of said columnar or cylindrical metal automotive part; a process of discharging a gas from said gap toward an end of a nozzle of said covering jig with said columnar or cylindrical metal automotive part being rotated; and a process of sticking a film-forming substance to said columnar or cylindrical metal automotive part from an axial side surface thereof. 2 . A method for producing a columnar or cylindrical metal automotive part according to claim 1 , wherein said gas discharged from said gap in said gas discharging process is flowed toward an axial end surface of said columnar metal automotive part or toward an inner surface of said cylindrical metal automotive part and thereafter discharged from said gap through a space inside said covering jig. 3 . A method for producing a columnar or cylindrical metal automotive part according to claim 1 , wherein said gas is compressed air. 4 . A method for producing a columnar or cylindrical metal automotive part according to claim 1 , wherein said film-forming substance is powder coating paint. 5 . A columnar or cylindrical metal automotive part produced by a method according to claim 1 .
the substrate being rotated · CPC title
Mounting or assembling · CPC title
having three pins, i.e. true tripod joints · CPC title
Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts · CPC title
Steel · CPC title
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