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Production method of high-strength marine aluminum alloy cylinder profiles

A production method and aluminum alloy technology, which are applied in the production field of high-strength marine aluminum alloy cylinder profiles, can solve the problems of decreased corrosion resistance, low mechanical properties, poor strengthening effect, etc., so as to improve production efficiency and achieve localization. Effect

Active Publication Date: 2014-10-15
SHANDONG YUHANG SPECIAL ALLOY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the fact that the main strengthening elements of 6063T6 aluminum alloy are few and the alloy is simple, the strengthening effect is not good and the mechanical properties are not high. However, at high temperature, the main strengthening elements of 6063 increase with the increase of temperature, and the solid solubility increases significantly. The alloy has obvious quenching aging strengthening effect , and the quenching range is wide, suitable for on-line quenching. When the upper limit of the strengthening phase elements in the alloy is taken, and a small amount of Cu is added, the strength of the 6063 alloy is close to that of duralumin, and the strength increases greatly, but the sensitivity to quenching increases , when the quenching time prolongs, the corrosion resistance decreases, therefore, a manufacturing method is urgently needed for 6063T6 high-strength corrosion-resistant aluminum alloy

Method used

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  • Production method of high-strength marine aluminum alloy cylinder profiles

Examples

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Effect test

Embodiment 2

[0014] The cast aluminum alloy is a six-series aluminum alloy round ingot with a specification of Φ380mm×4000mm. When smelting the No. 6 aluminum alloy round ingot, it is required to calculate the ingredients, liquid slag removal, and degassing. It is required to filter during casting. Slag removal, slag removal once after refining in the smelting furnace, once after refining in the holding furnace; once degassing after refining in the smelting furnace, once degassing after refining in the holding furnace, and degassing by a degasser after refining in the holding furnace. . 2. Cut the No. 6 aluminum alloy round ingot wagon with a specification of Φ380mm×4000mm, cut the head, cut the tail, take the low magnification, chemical composition, and cut the wool material if the low magnification and chemical composition are qualified. The wool material specification is Φ368mm×1450mm; the wool material is homogeneous, Heating temperature: 560°C, heat preservation for more than 10 hours...

Embodiment 3

[0016] The difference from specific examples 1 and 2 is that the No. 6 aluminum alloy round ingot used in step 1 has a refining degree that meets the requirements of the primary oxide film, no metal compound segregation, and the ratio of Mg and Si alloys is not according to Mg:Si= 1.73: 1 conventional ratio, but Si is surplus, Fe and Cu are added as the main elements, in order to improve the strength of the alloy, Mn is added as the main element, in order to eliminate the adverse effects of excess Fe, Si is 0.54%, Fe is 0.172% , Cu is 0.088%, Mn is 0.085%, Mg is 0.53%, Zn is 0.045%, Ti is 0.043%, Cr is 0.04%, single impurity ≤ 0.05%, total impurity ≤ 0.15%, the rest is Al; other steps and Parameters are the same as in Example 1.

Embodiment 4

[0018] The difference between this example and Example 1 is that the wool is homogeneous, the heating temperature is 555°C, and the temperature is kept for more than 10 hours. The cooling method is: air cooling to 200°C, then adding water cooling to room temperature, low-magnification inspection of oxide film, inspection of compound segregation , meeting the requirements of the primary oxide film, other steps and parameters are the same as in Example 1.

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Abstract

The invention relates to a production method of high-strength marine aluminum alloy cylinder profiles. The production method comprises aluminum alloy ingot casting; high-strength aluminum alloy cylinder profile extrusion and online quenching; high-strength aluminum alloy cylinder profile tension extension and aging treatment; high-strength aluminum alloy cylinder profile sampling and inspection; high-strength aluminum alloy cylinder profile test and packaging. According to the production method of the high-strength marine aluminum alloy cylinder profiles, the high-strength aluminum alloy cylinder profiles are produced through the online quenching and accordingly various performance indicators of the products meet the European standard requirements, the labor productivity is improved, the cost is saved, the order requirements of users are met, the localization production of the high-strength marine aluminum alloy cylinder profiles is achieved, and the import is replaced.

Description

technical field [0001] The invention relates to a production method of an aluminum alloy profile, more specifically a production method of a high-strength marine aluminum alloy cylinder profile. Background technique [0002] With the rapid development of the world's machinery manufacturing technology, new technologies, new materials, new processes, and new products emerge one after another. The demand for a certain type of high-strength marine aluminum alloy cylinder profile is increasing. High-strength marine aluminum alloy cylinder profiles require materials Must have high strength, good plasticity, high specific strength, light weight, high thermal conductivity, good corrosion resistance, especially working in seawater environment for a long time, no tendency of stress corrosion cracking, strong resistance to intergranular corrosion, good welding performance , The corrosion resistance of the welding zone is unchanged, the machinability is good, and it is easy to proces...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C21/08C22F1/05
Inventor 王明亮张建忠许辉苏本显耿志学宋微
Owner SHANDONG YUHANG SPECIAL ALLOY EQUIP
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