US9770739B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9770739-B2 |
| Application number | US-201415026203-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 19, 2014 |
| Priority date | Sep 30, 2013 |
| Publication date | Sep 26, 2017 |
| Grant date | Sep 26, 2017 |
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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 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).
The invention claimed is: 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 the steps of: providing a convergent nozzle-shaped covering jig that has a converged end covering said portion to be uncoated with said paint with the covering jig, wherein said covering is such that the outer circumferential surface of said columnar or cylindrical metal automotive part is covered at an axial end thereof by the covering jig and is such that a gap is formed between the covering jig and said outer circumferential surface of said columnar or cylindrical metal automotive part; discharging a gas from said gap, which is located at the converged end of the covering jig, while said columnar or cylindrical metal automotive part is rotated; and applying a film-forming substance to said columnar or cylindrical metal automotive part from an axial side surface thereof, wherein the resulting applied film-forming substance sticks to said columnar or cylindrical metal automotive part. 2. A method for producing a columnar or cylindrical metal automotive part according to claim 1 , wherein the step of discharging said gas from said cap is such that the gas 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 is 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.
the substrate being rotated · CPC title
Elastomers · CPC title
using means for protecting parts of a surface not to be coated, e.g. using stencils, resists · CPC title
Applying particulate materials (B05D1/06, B05D1/10 take precedence) · CPC title
performed by spraying · CPC title
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