PELLET MILL ROLLER SHELL HARD COATING AND METHOD OF APPLYING HARD COATING

摘要

The present invention provides a process and product for applying a hard coating to corrugated roller shells, and other roller shells having an irregular outer contact surface with raised portions. The roller, together with the welding electrode and associated particle feeder are movably attached to a fixture that allows them to move with respect to each other. The electrode is positioned at a starting location, actuated to form a weld puddle into which the particles are fed, and moved along an application path that follows the raised portions.

主权项

1. A method of hard surfacing a steel roller having an outer surface with raised portions, the method comprising the steps of:
providing a fixture; movably attaching an electrode and an associated particle feeder to the fixture; movably attaching the roller to the frame; providing relative movement of the electrode and the roller; positioning the electrode at a starting location relative to a raised portion of the outer surface of the roller; activating the electrode to create a weld puddle; feeding particles into the weld puddle; and moving the electrode and/or the roller with respect to the other along an application path that follows the raised portions of the outer surface of the shell.