| 摘要 |
<p>An electric arc spray metalizing apparatus includes a spray gun (10) which delivers a metalizing coating to the substrate. Wires (22) are fed to the spray gun through cables (26a) and (26b). The wires are directed through the spray gun to an intersection point where electrical energy creates an arc for consuming the ends of the wires at the intersection point. The wires are electrically charged by contact with a curved wire guide (176a), (176b) as the wires are bent when pushed through the wire guide. A flow stream of pressurized gas is directed through a main gas flow passage (152) onto the intersection point and the molten metal of the consumed wire ends is directed in a spray stream of molten metal particles. A pair of deflecting streams of pressurized gas flowing through deflecting gas passages (162) influence the spray stream by deflecting it into an elliptical or elongated deposition pattern. The orientation of the spray stream and deposition pattern can be changed relative to the spray gun by changing the position of the deflecting passages (162).</p> |
