Continuous rheomolding device for manufacturing metal plate strips

Abstract

The invention provides a continuous rheomolding device for manufacturing metal plate strips. The device comprises an inclined plate, a base, an electromagnetic vibration exciter and a double-roller rolling mill and is characterized by also comprising the double-roller rolling mill, wherein the inclined plate is formed by connecting a feeding section, a pulping section and a discharging section in turn; the lower side of a bottom plate of the pulping section is connected with the upper end of a spring; the lower end of the spring is fixed on the base; one end of the electromagnetic vibration exciter is fixed on the base, and the other end of the electromagnetic vibration exciter is connected with the lower side of the bottom plate of the pulping section; and gaps are formed between the bottom plate and two side plates of the discharging section and the roll surfaces of upper and lower rollers of the double-roller rolling mill. The range of vibration frequency which can be provided by the electromagnetic vibration exciter adopted by the device is expanded greatly and the vibration frequency is adjusted so that an alloy structure can be improved more effectively and molten metal is prevented from crusting on the surface of the inclined plate.

Description

technical field [0001] The invention relates to a forming device for metal strips, in particular to a continuous rheological forming device for preparing metal strips. Background technique [0002] The forming of metal materials is in an important basic position in the development of the national economy, and its development level determines the development level of social production in a certain sense. All kinds of metal sheets and strips play an important role in the forming of metal materials due to their wide application fields, large product consumption and high quality requirements. [0003] Metal semi-solid forming technology is a technology that uses the characteristics of good fluidity of metal with spherical grains in the metal-solid-liquid two-phase region. It has the characteristics of short process, high efficiency and energy saving, and excellent product structure and performance. It has been favored by countries all over the world. It is highly valued and has...

AI Technical Summary

Problems solved by technology

However, there are the following technical problems in the current continuous casting and rolling technology: (1) the casting and rolling speed is slow and the efficiency is low; Rolls are used for cooling, the cooling area is small, and the cooling intensity is low, forcing the rolling speed of the rolls to be very low in the continuous casting and rolling process to ensure sufficient cooling intensity for metal solidification. Therefore, the speed of continuous casting and rolling is slow and inefficient

(2) The microstructure and performance of the product are poor; since the metal sheet obtained by continuous casting and rolling is obtained by cooling and solidifying the liquid metal directly through the roll, although there is some rolling deformation, its structure is basically a casting composed of developed dendrites. state organization, so its organizational performance is poor

(3) The quality of the edge of the product is poor; in the continuous casting and rolling process, due to the lack of control over the shape and size of the edge of the product, defects such as cracks and notches are prone to appear on the edge of the casting and rolling product; Under the action of rolling, the liquid phase components are segregated at the edge, making the structure composition of the cast-rolled strip uneven, affecting the product yield and increasing the production cost

(4) The equipment structure is complex and the control is difficult; in the continuous casting and rolling process, the side sealing, shunting, distribution and temperature control of the molten metal all require special equipment components, and the functions of each component are relatively independent, making the production equipment structure Complex and difficult to control the production process

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