FURNACE FOR HEATING BARS, TUBES OR SIMILAR OBLONG ARTICLES

摘要

For preparing material that must be pressed or forged furnaces are used to heat said material. Said furnaces comprise a steel jacket in which a brickwork of refractory bricks is provided forming the so called furnace chamber. The articles to be heated are position in said furnace chamber into which burners for liquid or gaseous fuel discharge. An exhaust for combustion gases is provided and also supply means and discharge means for the articles to be heated. The furnace described comprises an elongated heating chamber, an exhaust passageway for combustion gases located alongside and extending lengthwise of the heating chamber and means for supplying elongated articles to be heated to the exhaust gas passageway to move transversely therethrough in contact with the hot gases and then into the heating chamber.