Great pressure-down sector section equipment

Abstract

The invention discloses great pressure-down sector section equipment. In the inner arc frame assembly process, each roller is fixed to an independent movable beam corresponding to each roller, the movable beam is connected with an inner arc frame by hydraulic cylinders which are hinged to two ends of the movable beam; an inner arc frame guide plate is arranged in the inner arc frame; the hydraulic cylinders are connected with a displacement control and pressure system; each roller which is assembled on an outer arc frame is relatively fixed to the outer arc frame, and the inner arc frame and the outer arc frame are assembled by bolts and are mutually connected and fixed to the upper end face of an outer arc frame side frame; a driving roller is arranged on the movable beam which is located on the middlemost position of the equipment, and the side end of the bottom of the outer arc frame is connected with an automatic steam communication device; when each pressing-down roller receives a current pressing-down stroke instruction, the roller instantaneously reaches an instruction position rapidly by the flexibility control of the hydraulic cylinders, the great pressure-down requirement at the position is realized, and each pressing-down roller in a sector section is subjected to great pressure. The great pressure-down sector section equipment has the characteristics that the pressure-down range is wide, the accuracy is high, and the control on a single roller is realized.

Description

technical field [0001] The invention relates to the technical field of metallurgical continuous casting equipment, in particular to a segment equipment under heavy pressure. Background technique [0002] Since the metal solidification process is bound to be accompanied by volume shrinkage and fractional crystallization, under conventional continuous casting conditions, defects such as center porosity and center segregation will inevitably occur at the end of the slab solidification; ) and steel types of slabs, the above-mentioned internal defects of the slab are more prominent; if the bulge at the end of solidification or the shrinkage of the roll gap does not keep up with the solidification shrinkage deformation of the slab shell, it will make the interior of the slab even more The quality deteriorated even more. [0003] In order to eliminate the central segregation and porosity caused by the solidification and shrinkage of the thick slab, and to avoid the occurrence of t...

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Problems solved by technology

[0002] Since the metal solidification process is bound to be accompanied by volume shrinkage and fractional crystallization, under conventional continuous casting conditions, defects such as center porosity and center segregation will inevitably occur at the end of the slab solidification; ) and steel types of slab, the above-mentioned internal defects of the slab are more prominent; if the bulge at the end of solidification or the shrinkage of the roll gap does not keep up with the solidification shrinkage deformation of the slab shell, it will make the interior of the slab even more worse quality

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