Alclad casting ingot rolling method

A technology of ingot casting and aluminum cladding, which is applied in the rolling field of aluminum clad ingots, can solve problems affecting the performance indicators of aluminum clad composite plates, etc., achieve stable surface quality levels of plates, eliminate surface 11# defects, and stabilize surface quality levels Effect

Inactive Publication Date: 2015-04-22
SOUTHWEST ALUMINUM GRP
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Problems solved by technology

[0004] In the aluminum-clad composite panel production process, the rolling of the aluminum-clad ingot is the initial step of the aluminum-clad composite panel process, and the quality of the process is an important prerequisite for the subsequent process. , 11# defects often appear. The so-called 11# defects refer to a large amount of Al powder, Fe powder, Al 2 o 3 Under the cond

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  • Alclad casting ingot rolling method
  • Alclad casting ingot rolling method

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Embodiment 1

[0038] 1.1 Firstly, face milling and oil washing are performed on the ingot, and the aluminum clad plate is checked and accepted according to the requirements of GB / T3880-2012, and then the milled ingot with a length of 2300mm and the 2 series aluminum clad plate are sent to the roll gap, so that The welding center line of the ingot coincides with the roll gap. Under the condition of 400T rolling force and the rolling speed of 12m / min, the static pressure transverse rolling welding rolling is carried out, and the first rolling is obtained after rolling 2 passes. Aluminum-clad ingots after the first rolling;

[0039] 1.2 Heat the first-rolled aluminum-clad ingot with a width of 1600 mm obtained in the above steps to 480 degrees Celsius, and then perform the second rolling, wherein the number of rolling passes in the structure welding process is 4 passes , the reduction deformation in the reduction deformation process is 100 mm, and the improvement amount in the structure improv...

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Abstract

The invention provides an alclad casting ingot rolling method. The alclad casting ingot rolling method comprises the following steps of firstly feeding a casting ingot and a alclad plate after milling into a rolling gap to enable a casting ingot welding central line and a rolling gap to be coincided, performing static pressure welding rolling and obtaining an alclad casting ingot after first-time rolling; performing second-time rolling on the first-time rolled alclad casting ingot after heating and obtaining a rolled alclad casting ingot, wherein the alclad casting ingot is obtained from the above step; wherein the second-time rolling comprises a structure welding process, a structure improvement process, a depress deformation process and a plate shape control process. According to the alclad casting ingot rolling method, rolling is performed in twice, process parameters are controlled, and the temperature for second-time rolling is fit, so that the surface quality of plates after rolling is stable and surface 11# defects generated during the rolling process are eliminated.

Description

technical field [0001] The invention belongs to the technical field of metal materials, and in particular relates to a rolling method of an aluminum-clad cast ingot. Background technique [0002] Aluminum alloy is an alloy based on aluminum, the main alloying elements are copper, silicon, magnesium, zinc and manganese. Aluminum alloy is the most widely used non-ferrous metal structural material in industry. At present, aluminum alloy is one of the main types of aluminum alloy profiles. Its production method is through aluminum alloy or direct cold casting into ingots, or continuous casting into thick strips, followed by hot rolling into a predetermined thickness, and then a separate Process After the strip is cold-rolled to the final thickness, heat treatment is carried out to improve the mechanical properties and corrosion resistance of the aluminum alloy, improve its processing performance, and obtain dimensional stability. [0003] Among many aluminum alloy products, al...

Claims

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Application Information

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IPC IPC(8): B21B1/38B21B37/00
CPCB21B1/38B21B2001/383
Inventor 汪磊
Owner SOUTHWEST ALUMINUM GRP
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