Patent ID: 6889748
Filing Date: 2005-05-10
Classification: B22D

Abstract:
1. Machinery for continuously casting metals, comprising: an oscillating frame that is reciprocable in a casting direction so that at least one of amplitude and frequency of the oscillation are adjustable; a continuous casting mold mounted in the oscillating frame; leaf spring assemblies having leaf springs, the oscillating frame being mounted on the leaf spring assemblies, the leaf springs being symmetrically arranged on both sides of a cast strand, for guidance and weight compensation, the continuous casting mold having a shaped casting cross section with a dog-bone shape mounted in the oscillating frame so that the oscillating frame, which is mounted on the leaf springs, and the continuous casting mold are operable by a resonance oscillation method; a drive operative to vary the oscillatory motion with respect to at least one of oscillation amplitude, oscillation frequency and oscillation curve, the oscillating frame being configured so that the frictional force between the strand and the mold can be influenced by the amplitude of the oscillation or by the type of oscillatory motion of the oscillating frame; a pressure measuring device connected to said drive for measuring pressures in said drive; computing means for computing friction force from the measured pressures; means for adjusting amplitude of the oscillatory motion of the oscillating frame to about 0.3-6 mm based on the measured friction force; and a base frame, the leaf spring assemblies being arranged to run in pairs on both sides at an acute angle to each other, and flexibly mounted at both ends, the oscillating frame that supports the continuous casting mold is mounted by supporting brackets, which are secured to the leaf spring assemblies between the ends and which join the leaf spring assemblies and the oscillating frame.