| 摘要 |
A nozzle, nozzle assembly and method for internally coating containers uses a dual orifice nozzle and method to direct divergent distinct spray patterns at separate interior surface portions of the container where the coating liquid is required most. The nozzle comprises a generally cylindrical body having a forward portion, a middle portion, a rear portion, a first conduit passageway extending longitudinally therethrough terminating in a first opening disposed in the forward portion, and a second conduit passageway extending longitudinally therethrough terminating in a second opening formed in the forward portion of the nozzle body. The first and second conduit passageways direct the separate sprays of coating liquid generally forward of the nozzle body in separate distinct patterns diverging from one another with an acute included angle. The conduits are suited to receive airless nozzle inserts that direct the separate spray patterns at the distinct interior portions to thereby define a dual orifice nozzle assembly. In the internal coating method, a flow of coating liquid is divided into distinct first and second flow portions, with the first flow portion being directed toward one interior surface portion of the container and the second flow portion being directed toward a second interior surface portion of the container.
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