Stepless separation ring for wire horizontal continuous casting and its usage method

Abstract

The invention relates to a non-step separating ring with wire horizontal continuous casting. Wherein, its shape is step cylinder, formed by cylinder hole and taper hole whose central holes are connected; the open of taper hole is at the small end of step. Its operation comprises that: before installment and opening, two surfaces of separating ring and crystallizer copper sheath are contacted by mechanical method; the nozzle of separating ring made from fireproof material is connected to the fireproof material of middle pack; the front end of guide rod is taper, to confirm seamless state between the guide rod and the central hole of separating ring. In the casting process, the separating ring and the crystallizer can avoid fly edge solidified from steel liquid, to improve the guide success rate and the drawing success rate.

Description

technical field [0001] The invention relates to an innovative technology for horizontal continuous casting of molten steel (or liquid state of other materials) forming in a metallurgical process, in particular to a step-free separation ring for horizontal continuous casting of steel materials and other high value-added metals and alloy materials and a method for using the same. It belongs to the technical field of continuous casting. Background technique [0002] Since the industrialization of steel continuous casting technology in the 1940s, it has experienced the evolution of vertical, vertical bending, arc, elliptical, and straight section in the secondary cooling zone. In addition, continuous casting technologies such as thin slab continuous casting and horizontal continuous casting have also appeared. my country has introduced foreign horizontal continuous casting technology since the 1980s, and successively produced in Chengdu Seamless Steel Tube Factory (now merged i...

AI Technical Summary

Problems solved by technology

For the horizontal continuous casting of small-section wire rods, there are the following problems in the use of the step separation ring: because the step of the separation ring (the protruding outer edge of the small hole at the center of the connection between the separation ring and the crystallizer) is very thin (compared with the large cross-section The separation ring of horizontal continuous casting is much thinner), and it is made of refractory material (not metal material). Among them, due to the inhomogeneity of thermal expansion, the verticality of the dummy rod used for wire drawing in the wire drawing process, and the verticality of the wire drawing (drawing) process in the normal drawing process, have a great impact on the step circumference of the separation ring. Uneven pressure is generated in the direction and axial direction, causing the separation ring step to be easily damaged and broken

There is no report abroad on related technologies

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