GB139838A - Improved process and apparatus for the continuous casting of rods, bars and the like - Google Patents

Abstract

139,838. Coats, A. Dec. 4, 1918. Casting-machines; metal-pouring; mould and core materials.-In a continuous casting machine for metal rods, tubes, &c., preferably of the kind in which means are provided for maintaining the required temperature of the metal at various parts, the rate of feed of metal from the crucible C', or the rate of withdrawal of the finished bar &c. by the rolls B2 B3 is controlled by electrical or pneumatic means depending on the level of the metal in the casing A. This casing has a smooth or highly polished interior, and may be tapered as shown and flared outwardly at the top to receive lubricant, and also may have a V-notch to provide an overflow for surplus metal. The metal is preferably supplied through vents near the outer edge of the tubular casing A, the upper portion of which may be heated by gas burners. The lower portion is surrounded by a water-jacket A1 with a circulating-sleeve A7, and below this the water may be in direct contact with the rod. In starting, a rod B with a notch B1 supports the solidifying column of metal. In the electrical controlling-device, a solenoid C4 may close the valve C2 when contact is made between the end of a wire C5 and the surface of the metal. In the pneumatic control, a cylinder connected to exhausting-apparatus operates the valve when the mouth of an inlet pipe is closed by the rising metal. Cores.-In casting tubes, the tapering core F, Fig. 4, may have a pointed nose, so that lubricant from a pipe G3 is distributed uniformly to channels G4 between the core F and the pouring- chamber G. Castings.-The withdrawing rolls B2, B3 may be arranged to roll the metal to a smaller section.