| 摘要 |
<p>Lateral metal parts of the frame for Venetian blinds in a glass-enclose chamber, to which a coating product is applied in order to facilitate sliding movement of the edges of the slats when the blind is raised or lowered, thus reducing friction and preventing squeaking noises as well as avoiding production of a dark-coloured dust which then becomes detached. The coating is applied by an installation that causes axial translation of a pair of metal parts placed side by side, maintaining the parts to be coated under the action of a product sprayer, exclusion of coating on the external sides of the pair of parts being ensured by the amplitude and position of the sprayer cone and, on the internal sides, by their reciprocal contact.</p> |
