Intermediate slab connecting equipment and system

Abstract

The invention provides intermediate slab connecting equipment. The intermediate slab connecting equipment comprises an outlet clamping device for clamping a front intermediate slab, an inlet clamping device for clamping a back intermediate slab, a friction blade for rubbing the connecting end surfaces of the front intermediate slab and the back intermediate slab, and an upsetting device for applying upsetting force; the friction blade is positioned between the inlet clamping device and the outlet clamping device; and the friction blade is connected with a friction blade vibration device. The friction blade extends between the front intermediate slab and the back intermediate slab for rubbing the end surfaces of the two, so that the end surfaces of the intermediate slabs and near areas are quickly heated to reach a viscoplasticity state; the upsetting device applies the upsetting force to the back intermediate slab; after the friction blade is shifted away, the front intermediate slab is connected with the back intermediate slab. The intermediate slab connecting equipment is simple in structure, high in connecting strength, fast in connecting speed, low in energy consumption and suitable for connecting slabs with different materials.

Description

technical field [0001] The invention belongs to the field of hot rolling equipment, and relates to a connection device and system for an intermediate billet used in the process of converting conventional hot rolling into endless rolling in the iron and steel industry. Background technique [0002] The production of traditional strip hot continuous rolling finishing mills is carried out with a single intermediate billet for rolling, and entering the finishing mill generally goes through processes such as strip threading, accelerated rolling, decelerated rolling, steel throwing, and tail flicking. In the process of finishing rolling, especially in thin-gauge rolling, it is easy to bite into the head of the strip between the finishing stands and be blocked, forming piles of steel, slipping and tail flick folding, and tail flicking forms fold bite, resulting in damage to the roll surface etc.; during coiling, due to the serpentine shape and bending of the front end of the strip,...

AI Technical Summary

Problems solved by technology

This connection method is mainly suitable for the connection of the same material because it applies pressure to the shear surface for physical connection. When different materials are connected, the strength of the connection area is also affected due to the difference in chemical composition and physical metallurgical properties. At the same time, The equipment is huge, takes up a lot of space, equipment investment and maintenance costs are high, etc.

[0009] In a word, the connection methods of intermediate blanks in the prior art all have one of the problems of large equipment investment, low connection strength of intermediate blanks, slow connection speed, not suitable for connection of dissimilar steel materials, huge equipment, and high maintenance costs. or several

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