Ribbed vertical roller device for isothermal composite of multiple metals

Abstract

The present invention discloses a ribbed vertical roller device for use in isothermal composite preparation of fully coated composite pipes, composite rods, composite plates and strips, composite busbars and composite profiles of multiple metals, including a single or a pair of symmetrically placed arc-shaped ribbed rollers, an adjustable vertical roller arch, a heater device, a water circulation constant temperature device, a temperature measuring and controlling device, and a speed encoder device. The ribbed vertical rollers are assembled on the adjustable vertical roller arch and arranged along the two sides of the composite workpiece. Several ribbed vertical roller devices are linked to form a multi-stage system. The temperature-controlled circulating water flows through the axial shunt pipe of the arc-shaped ribbed roller to keep the ribbed vertical roller at a constant temperature. During the isothermal composite and continuous forming process of multiple metals and their alloys, the ribbed vertical roller device limits and guides the sandwich metal substrate and the core metal substrate, and continuously exchanges heat with the coating metal substrate to achieve thermal equilibrium and establish the isothermal composite working condition of multiple metals.

Description

Technical Field

[0001] The invention belongs to the field of metal matrix composite materials, and relates to the application of a ribbed vertical roller device in the isothermal continuous preparation of composite materials from multi-component metals and alloys thereof. Background Art

[0002] A single metal material has specific physical, chemical and mechanical properties, such as mechanical strength, ductility, thermal expansion coefficient, plastic and elastic deformation, corrosion and wear resistance, thermal and electrical conductivity, specific gravity and specific heat, electromagnetic properties, etc. Multi-component metal composite materials have the properties of each component metal substrate and are a new type of metal material.

[0003] The isothermal composite of multi-metal and its alloys is a plastic deformation process under the combined action of rolling and temperature. Under the action of deformation and temperature field, the atoms at the metal interface diffuse with each other to form a diffusion transition layer with a covalent bond structure, and physical and chemical changes occur in the binary metal interface region, forming a new type of multi-metal composite material.

[0004] Metal matrix composites are usually prepared by solid-liquid phase and solid-solid phase combination methods. Commonly used solid-solid phase combination methods for preparing metal composite materials usually adopt hot rolling and pressing method, drawing bonding method, explosive welding method and hydrostatic extrusion method. The isothermal method is an advanced process technology developed in recent years for the continuous preparation of multi-metal and alloy composite materials. It is to form an isothermal state with the metal-based core material, metal-based interlayer, metal-based cladding and rolled body under the precise control of the temperature, speed, pressure and deformation of the component metals, and continuously prepare metal composite materials with a short process production line, so as to achieve precise control of the composite working conditions, control the configuration of the formed interface metal compound, grain size and grain boundary distribution, and prepare metal composite materials with high quality and good consistency. Summary of the invention

[0005] The present invention is a ribbed vertical roller device for preparing a fully coated metal matrix composite material by isothermal composite of multiple metals, which is a supporting device for a short-process continuous production line. It has the characteristics of simple structure, stable system and optimized process. It can prepare a metal composite material with a multi-layer structure of core layer, interlayer and coating layer, and the product has good consistency, high concentricity and excellent quality.

[0006] The technical solution of the present invention is as follows:

[0007] The ribbed vertical roller device used for preparing fully covered composite pipes, composite rods, composite plates, composite busbars and composite profiles by isothermal composite of multiple metals is composed of a single or a pair of symmetrically placed arc-shaped ribbed rollers (1) and an adjustable vertical roller arch. The arc-shaped ribbed rollers are arranged along both sides of the composite workpiece and assembled on the adjustable vertical roller arch. Several ribbed vertical roller devices are linked to form a multi-level system. The rib height (5) of the ribbed roller increases along the direction of travel of the composite workpiece, and the distance between each pair of ribbed rollers decreases along the direction of travel of the composite workpiece.

[0008] The ribbed roller acts directly on the cladding metal substrate (2). Under the ribbed pressure, the concave part of the cladding metal substrate first touches the sandwich metal substrate (3) and then touches the core metal substrate (4), forming an extrusion of the sandwich metal substrate and the core metal substrate. The arc-shaped ribbed roller placed singly limits the unilateral extrusion of the sandwich metal substrate and the core metal substrate, and corrects the horizontal displacement; the symmetrically placed arc-shaped ribbed rollers extrudes and guides the two sides of the cladding metal substrate, the sandwich metal substrate and the core metal substrate, so that they are symmetrically centered.

[0009] The ribbed vertical roller device is in an inert gas protective atmosphere.

[0010] The heater first heats the ribbed vertical roller device, and then controls and insulates the temperature to keep the ribbed roller in the set temperature range. The temperature-controlled circulating water flows through the ribbed roller axis guide pipe to keep the ribbed vertical roller device at a constant temperature. The arc-shaped ribbed roller and the cladding metal substrate, the cladding metal substrate and the sandwich metal substrate, and the sandwich metal substrate and the core metal substrate exchange heat with each other to achieve thermal balance and establish an isothermal composite working condition of multiple metals and their alloys.

[0011] The non-contact infrared temperature measuring device continuously detects the surface temperature of the composite metal, the contact encoder device continuously detects the composite forming speed, and the PLC programming and control system outputs the temperature feedback and regulates the heater and temperature control

[0012] Circulating water establishes an isothermal environment for continuous compounding of multiple metals, thereby achieving control over the isothermal compounding of multiple metals.

[0013] The characteristic of multi-metal isothermal composite is the precise control of composite temperature. With the auxiliary forming of rib roller device, each metal matrix composite layer can be limited and guided to realize the control of lattice structure, grain size, grain boundary area and configuration of metal compounds at the composite interface.

[0014] The isothermal method is to achieve multi-metal composite process control, environmental control and variable control on a short process continuous composite production line. The multi-metal isothermal composite preparation of fully covered composite pipes, rods, plates and strips and busbar materials has high production efficiency, and the prepared metal matrix composite materials have the characteristics of high bonding strength, uniform layer thickness and good consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the rib vertical roller device used for isothermal composite of multiple metals according to the present invention.

[0016] Figure 2 It is a schematic diagram of the deformation and forming of the cladding layer metal matrix, the sandwich layer metal matrix and the core layer metal matrix under the linkage of the multi-metal isothermal composite multi-pass rib vertical rollers of the present invention. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Embodiment: The ribbed vertical roller device used for isothermal composite of multiple metals is composed of a single or a pair of symmetrical arc-shaped ribbed rollers (1) and an adjustable vertical roller arch. The ribbed rollers are mounted on the adjustable arch, arranged along the two sides of the composite workpiece and positioned at a reference elevation along the central axis of the system.

[0019] Several pairs of ribbed rollers are linked to form a multi-stage system. The rib height (5) of the ribbed rollers increases along the direction of travel of the composite workpiece, and the spacing between each pair of ribbed rollers decreases along the direction of travel of the composite workpiece.

[0020] The ribbed roller directly acts on the metal substrate (2) of the composite tube coating layer. The concave part of the metal substrate of the coating layer under the extrusion of the rib begins to touch the sandwich metal substrate (3) and then touches the core metal substrate (4), forming an extrusion of the sandwich metal substrate and the core metal substrate. The arc-shaped ribbed roller placed singly limits the extrusion of the sandwich metal substrate and the core metal substrate on one side and corrects the horizontal displacement; the arc-shaped ribbed roller placed symmetrically extrudes and guides the two sides of the coating metal substrate, the sandwich metal substrate and the core metal substrate, so that they are centered along the central axis of the system.

[0021] The heater first heats the ribbed vertical roller device, and then controls and insulates the temperature to keep the ribbed roller in the set temperature range. The temperature-controlled circulating water flows through the ribbed roller axis guide pipe to form the ribbed roller and the cladding metal substrate, keeping the ribbed vertical roller device at a constant temperature. The arc-shaped ribbed roller and the cladding metal substrate, the cladding metal substrate and the sandwich metal substrate, and the sandwich metal substrate and the core metal substrate exchange heat with each other to achieve thermal balance and establish a multi-metal isothermal composite working condition.

[0022] The non-contact infrared temperature measuring device continuously monitors the temperature of the formed tube of the continuous composite of multiple metals, the contact encoder device continuously detects the composite forming speed, the PLC programming and control system outputs the temperature feedback and regulates the heater and temperature-controlled circulating water, establishes an isothermal environment for the continuous composite of multiple metals and their alloys, and realizes the process control of the production of fully-clad composite tubes, composite rods, composite plates and strips, composite busbars and composite special-shaped materials for the isothermal composite continuous preparation of multiple metals.

[0023] The above examples are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people who are familiar with the technical principles to fully understand the content of the present invention and implement it accordingly, and cannot be used to limit the scope of protection of the present invention. The implementation conditions adopted in the embodiments can be further adjusted according to the working conditions of specific tests or production, and the unspecified implementation conditions are usually the conditions in conventional experiments. The present invention and the claims described in the present invention can be used for many other purposes. Therefore, the present invention is not limited to the fields and uses described and will be applicable to other fields and uses. All equivalent transformations, decorations or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-metal isothermal composite forming method, characterized by: The method is carried out by using a ribbed vertical roller machine, which includes a ribbed vertical roller device, which is composed of a single or a pair of symmetrically placed arc-shaped rollers with ribs in the middle and an adjustable vertical roller arch: The arc-shaped ribbed rollers are assembled on the vertical roller arch, arranged along the two sides of the composite workpiece and positioned along the central axis of the system. Several ribbed vertical roller devices are linked to form a multi-level system. The rib height of the arc-shaped ribbed rollers increases along the direction of the composite workpiece, and the distance between each pair of ribbed rollers decreases along the direction of the composite workpiece. The ribbed vertical roller device is in an inert gas protection atmosphere; the heater heats the ribbed vertical roller device, and then controls and keeps the temperature to keep the arc-shaped ribbed roller in the set temperature range; the temperature-controlled circulating water flows through the ribbed roller axis guide pipe to keep the ribbed vertical roller device at a constant temperature; The arc-shaped ribbed roller and the cladding layer metal substrate, the cladding layer metal substrate and the sandwich metal substrate, and the sandwich metal substrate and the core metal substrate exchange heat with each other to achieve thermal equilibrium and establish an isothermal composite working condition of multi-metals. The isothermal composite working condition is that a non-contact infrared temperature measuring device continuously detects the surface temperature of the composite metal, a contact encoder device continuously detects the composite forming speed, a PLC programming and control system outputs a temperature feedback amount, regulates the heater and the temperature-controlled circulating water, establishes an isothermal environment for continuous composite of multi-metals, and realizes control of the isothermal composite of multi-metals.

2. The method according to claim 1, characterized in that By adjusting a single arc-shaped ribbed roller placed on the arch to limit the unilateral extrusion of the sandwich metal substrate and the core metal substrate, the horizontal displacement is corrected; by adjusting a pair of arc-shaped ribbed rollers symmetrically placed on the arch to extrude and guide the two sides of the cladding metal substrate, the sandwich metal substrate and the core metal substrate, they are symmetrically centered along the central axis of the system.

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