A method for rolling magnesium-aluminum layered laminates with drum-shaped corrugated rolls
A technology of corrugated rolls and laminated plates, which is applied in metal rolling and other directions, can solve problems such as poor mechanical properties, low interface bonding strength, and edge cracks, and achieve the effects of reducing edge cracks, reducing fine grains, and reducing damage
Active Publication Date: 2021-04-06
TAIYUAN UNIV OF TECH
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Problems solved by technology
[0007] The purpose of the present invention is to provide a method for rolling magnesium-aluminum layered laminates with drum-shaped corrugated rolls in order to solve the technical problems of low interface bonding strength, serious edge cracks, and poor mechanical properties during the production of magnesium-aluminum laminates
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Embodiment 1
[0060] with attached image 3 The magnesium / aluminum laminates were prepared by the method shown:
[0061] 1) Billet making: AZ31 magnesium alloy plates with length and width of 200mm (length) × 50mm (width) × 2mm (height) were selected as compound plate 1 and 1060 of 200mm (length) × 50mm (width) × 2mm (height). The aluminum plate is used as the base plate 2, and the surface of the metal plate is ground and cleaned with a wire brush with a wire diameter of 0.3 mm. riveting;
[0062] 2) Heating: the assembled slab 3 is heated in an argon atmosphere protection environment for 20 minutes, and the heating temperature is 350°C;
[0063] 3) Rolling with drum-shaped corrugated rolls: The slab 3 is rolled and compounded by a two-roller mill equipped with a drum-shaped corrugated roll 5 on the upper roll and an ordinary flat roll 6 on the lower roll. The average diameter of the upper and lower rolls is: D= 150mm, the drum height H and the roll body length L are 2mm and 150mm respec...
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The invention relates to the processing field of metal laminated strips, in particular to a method for rolling magnesium-aluminum layered laminated plates with drum-shaped corrugated rolls. Select a magnesium alloy plate with the same length and width as the doubler plate, and a pure aluminum or aluminum alloy plate as the base plate, clean the surface of the metal plate, and assemble the base plate and the polished surface of the double plate with buckles, or buckle and stack them. together. When the magnesium-aluminum laminate is rolled with drum rolls in the first pass, a stress peak can be formed on the metal interface at the lowest point of the laminate to promote the combination of the middle part of the laminate and the trough of the corrugated interface. During the second pass of flattening, stress peaks will be formed on the edge of the laminated plate and the metal interface at the crest, which is poorly bonded during the first pass of the plate, and at the same time, a large plastic deformation will be generated, which will promote the lamination process. Bonding of plywood edges. The process is rolled twice successively, which promotes the bonding of the entire interface and improves the bonding strength of the laminated plate interface.
Description
technical field [0001] The invention relates to the processing field of metal laminate strips, in particular to a method for rolling a magnesium-aluminum layered laminate with a drum-shaped corrugated roller. Background technique [0002] Magnesium alloys are known as "green engineering materials in the 21st century" due to their low density, high specific strength, high specific stiffness, good thermal conductivity and electrical conductivity, and good cutting performance. . However, its lack of corrosion resistance largely limits the wide application of magnesium alloys in various industries. The aluminum alloy, which is also a light metal, has good corrosion resistance and plastic forming properties, and has good surface repairability and modifiability. Aluminum is also the most widely used alloy in magnesium alloys to improve strength and corrosion resistance. element. Therefore, a layer of aluminum alloy is covered on the surface of the magnesium alloy, and a magnesi...
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IPC IPC(8): B21C37/02B21B1/38
CPCB21B1/38B21B2001/386B21C37/02
Inventor 王涛高翔宇任忠凯齐艳阳韩建超赵敬伟马晓宝和东平史汉卿郭雄伟
Owner TAIYUAN UNIV OF TECH