Hot-mold continuous casting apparatus and method

Abstract

The invention relates to a thermal continuous casting equipment, comprising a base (1), a motor bracket (2), a motor (4), a bracket (8), a driving roller and a pressing force adjustment unit, wherein: the driving roller includes a blank, matching upper and lower driving rollers (13-1), (13-2), and the upper and lower driving rollers are driven by a motor to rotate synchronously; the device also includes matching upper and lower positioning rollers (19 -1), (19-2); the upper driving roller (13-1) and the upper positioning roller (19-1) are controlled by the pressing force adjustment unit to move up and down; the working wheel surface matched between the upper and lower driving rollers is The trapezoidal convex surface-V-shaped groove shape, the working wheel surface matched between the upper and lower positioning rollers is also in the trapezoidal convex surface-V-shaped groove shape. The transmission of this equipment is stable, the position is accurate, and the motor can simultaneously drive a group of casting rolls to rotate, which overcomes the shortcomings of single-roller driving.

Description

technical field [0001] The invention belongs to the field of hot continuous casting production, and is particularly suitable for the production of copper and copper alloys, aluminum and aluminum alloys, titanium-nickel alloys and the like with unidirectional columnar crystal structures. Background technique [0002] Since the end of the 1960s, when Atsumi Ohno proposed the hot continuous casting method (OCC method), many scholars have carried out research on hot continuous casting and applied the research results to many fields. The typical application is to use The cast ingot with continuous columnar crystal structure is processed into wire rods with small diameters through cold rolling, drawing, etc. The diameter is about 20 μm. However, wire breakage often occurs in processes such as cold rolling and drawing of wire rods, which affects the quality and application of wire rods. One of the main reasons is that the surface quality of ingots is poor, with deformation, scratc...

AI Technical Summary

Problems solved by technology

Its shortcomings are: complex structure, difficult installation and adjustment, five sets of wheels press the drawn ingot on the same straight line at the same time, the straightness is difficult to adjust, and it is easy to cause breaking phenomenon; Roller drawing means that in all groups of drawing rollers, only the drawing roller on one side of the ingot being drawn has a driving device, and the drawing roller on the other side of the ingot is a driven roller, which mainly plays a pressing role. Its rotation is driven by the ingot being pulled, which can easily cause uneven force on the continuous casting ingot, resulting in the phenomenon of pulling the ingot, and it is easy to cause the deformation of the ingot; the spring is compressed, and because of its limited pressure, it is also easy to cause the situation of pulling the ingot; There is no pressing force control device, the ingot is easy to deform if the pressing force is large, which will affect its performance, and the pressing force will not move if the pressing force is small; there is metal-to-metal friction between the drawing roller and the continuous casting ingot, and the friction coefficient is small, resulting in effective Small pulling force

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