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Production process of aluminum alloy hot rolling medium plate

A production process, aluminum alloy technology, applied in the direction of temperature control, etc., can solve the problems of difficult to control thickness and plate shape, easy cracking edge, long production cycle, etc., to achieve the effect of perfecting the production process

Inactive Publication Date: 2009-09-23
中铝河南铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing 5083 alloy plate mainly has the following difficulties in the rolling process: 1. 5083 requires soaking treatment, which makes the production cycle longer
2. It is easy to crack the edge during rolling
3. Thickness and plate shape are difficult to control

Method used

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  • Production process of aluminum alloy hot rolling medium plate

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 5083 aluminum alloy plate 20*1500*6000mm

[0030]Melting: Firstly, inspect the prepared raw materials; configure the qualified raw materials, and the composition of alloy materials is as follows: Fe≤0.35%, Si≤0.25%, Cu≤0.10%, Mn: 0.70~0.90%, Mg: 4.50~4.80% , Cr: 0.10~0.20%, Zn≤0.20%, Ti≤0.10%, the total of other impurities≤0.15%, Na≤5ppm, Ca≤5ppm, Al: the balance, put into the smelting furnace successively; Pre-analysis, composition adjustment, guide furnace, refining degassing, slag removal, temperature adjustment.

[0031] Casting: use semi-continuous casting, and check whether the ingot meets the production requirements according to the relevant inspection standards.

[0032] Face milling: the milling amount of the large face: 15~20mm, the milling amount of the small face: 10~15mm; the roughness Ra(um) after milling of the large face is required to be less than 3.2, and the roughness Ra(um) after milling of the small face is less than 6.4.

[0033] Heating: 5083 he...

Embodiment 2

[0041] 5083 aluminum alloy hot rolled plate 8*1500*6000.

[0042] Melting: Firstly, inspect the prepared raw materials; configure the qualified raw materials, and the composition of alloy materials is as follows: Fe≤0.35%, Si≤0.25%, Cu≤0.10%, Mn: 0.70~0.90%, Mg: 4.50~4.80% , Cr: 0.10~0.20%, Zn≤0.20%, Ti≤0.10%, the total of other impurities≤0.15%, Na≤5ppm, Ca≤5ppm, Al: the balance, put into the smelting furnace successively; Pre-analysis, composition adjustment, guide furnace, refining degassing, slag removal, temperature adjustment.

[0043] Casting: use semi-continuous casting, and check whether the ingot meets the production requirements according to the relevant inspection standards.

[0044] Face milling: the milling amount of the large face: 15~20mm, the milling amount of the small face: 10~15mm; the roughness Ra(um) after milling of the large face is required to be less than 3.2, and the roughness Ra(um) after milling of the small face is less than 6.4.

[0045] Heatin...

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Abstract

The invention relates to a production process for hot-rolling medium plate by adopting aluminum alloy. The aluminum alloy materials are as follows according to the weight percentage: Fe is less than or equal to 0.35, Si is less than or equal to 0.25, Cu is less than or equal to 0.10, Mn is 0.70-0.90, Mg is 4.50-4.80, Cr is 0.10-0.20, Zn is less than or equal to 0.20, Ti is less than or equal to 0.10, other impurities are less than or equal to 0.15 in total, Na is less than or equal to 5pp,, Ca is less than or equal to 5ppm, and Al is the balance; and the sum of all components is 100. The main process comprises the following steps of melting, milling, heating, hot rough rolling or fine rolling. The invention adopts a soaking process during the processing of the aluminum alloy, mainly adopts two measures of milling sides and rolling the sides to solve the edge crack problem, controls the thickness difference and the plate form as well as oil spot and scuffing, and develops the production process for hot-rolling the medium plate by adopting the 5083 aluminum alloy.

Description

technical field [0001] The invention relates to non-ferrous metal processing technology, in particular to a production process of aluminum alloy hot-rolled medium-thick plate. Background technique [0002] At present, the main alloying element in 5083 aluminum alloy is magnesium, and a small amount of alloying elements such as Mn, Cr, Ti, etc. are added. It is a medium-high strength alloy with good corrosion resistance and weldability, so that 5083 alloy is widely used in marine applications. Ships, as well as automobiles, aircraft welding parts, subway light rail, pressure vessels (such as liquid tank cars, refrigerated trucks, refrigerated containers) refrigeration devices, TV towers, drilling equipment, transportation equipment, missile parts, armor, etc. [0003] The existing 5083 alloy sheet mainly has the following difficulties in the rolling process: 1. 5083 requires soaking treatment, which makes the production cycle longer. 2. It is easy to crack the edge during ro...

Claims

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Application Information

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IPC IPC(8): C22C21/06C22C21/08C22C1/06C22F1/047B21B37/74
Inventor 王俊红赖爱玲余晓刚于文峰刘红晓熊晓明高作文史欣
Owner 中铝河南铝业有限公司
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