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Preparing method for 6-series aluminum alloy sectional bar

A technology for aluminum alloy profiles and aluminum alloys, which is applied in the field of preparation of 6-series aluminum alloy profiles, can solve the problems of difficult online quenching control, poor quenching uniformity, and wide control range, and achieves reduction of process time and fast cooling rate. , the effect of improving production efficiency

Inactive Publication Date: 2016-08-10
广西南南铝加工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for preparing 6-series aluminum alloy profiles in view of the problems of wi

Method used

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  • Preparing method for 6-series aluminum alloy sectional bar

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of preparation method of 6 series aluminum alloy profiles, such as figure 1 As shown, there are the following steps:

[0031] (1) Casting ingots. The cast aluminum alloys are 6-series aluminum alloy ingots. The composition and weight percentage of the 6-series aluminum alloys are: 1% for Mg, 1.05% for Si, 0.75% for Mn, and 0.75% for Fe. 0.25%, Cr is 0.25%, Zn is 0.1%, Cu is 0.1%, Ti is 0.1%, V is 0.05%, Hf is 0.5%, Sc is 0.25%, Ag is 1.0%, and the rest is Al;

[0032] (2) Heating the ingot with a length of 1000mm, adopting the gradient heating method, the temperature difference between the head and the tail is 50°C, and the heating temperature of the ingot in the heating furnace is controlled at 480°C;

[0033] (3) Heat the mold to 500°C in a heating furnace and keep it warm for 10 hours;

[0034] (4) Heating the extrusion barrel, and controlling the temperature of the extrusion barrel at 450°C;

[0035] (5) Extrusion production: After the ingot and the mold a...

Embodiment 2

[0041] A preparation method of a 6-series aluminum alloy profile comprises the following steps:

[0042] (1) Casting ingots. The cast aluminum alloys are 6-series aluminum alloy ingots. The composition and weight percentage of the 6-series aluminum alloys are: 1% for Mg, 1.05% for Si, 0.75% for Mn, and 0.75% for Fe. 0.25%, Cr is 0.25%, Zn is 0.1%, Cu is 0.1%, Ti is 0.1%, V is 0.05%, Hf is 0.5%, Sc is 0.25%, Ag is 1.0%, and the rest is Al;

[0043] (2) Heating the ingot with a length of 1000mm, adopting the method of gradient heating, the temperature gradient is 50°C, and the heating temperature of the ingot in the heating furnace is controlled at 480°C;

[0044] (3) Heat the mold to 500°C in a heating furnace and keep it warm for 10 hours;

[0045] (4) Heating the extrusion barrel, and controlling the temperature of the extrusion barrel at 450°C;

[0046] (5) Extrusion production: After the ingot and the mold are heated, the upper mold is extruded after the extrusion cylinde...

Embodiment 3

[0052] A preparation method of a 6-series aluminum alloy profile comprises the following steps:

[0053] (1) Casting ingots. The cast aluminum alloys are 6-series aluminum alloy ingots. The composition and weight percentage of the 6-series aluminum alloys are: 1% for Mg, 1.05% for Si, 0.75% for Mn, and 0.75% for Fe. 0.25%, Cr is 0.25%, Zn is 0.1%, Cu is 0.1%, Ti is 0.1%, V is 0.05%, Hf is 0.5%, Sc is 0.25%, Ag is 1.0%, and the rest is Al;

[0054] (2) Heating the ingot with a length of 1000mm, adopting the method of gradient heating, the temperature gradient is 50°C, and the heating temperature of the ingot in the heating furnace is controlled at 480°C;

[0055] (3) Heat the mold to 500°C in a heating furnace and keep it warm for 10 hours;

[0056] (4) Heating the extrusion barrel, and controlling the temperature of the extrusion barrel at 450°C;

[0057] (5) Extrusion production: After the ingot and the mold are heated, the upper mold is extruded after the extrusion cylinde...

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Abstract

The invention relates to preparing of aluminum alloy sectional bars, in particular to a preparing method for a 6-series aluminum alloy sectional bar. The extrusion technology sequentially comprises the steps of ingot selecting, ingot heating, extruding, roller bottom continuous solid solution quenching, tension leveling, finished product saw cutting, sampling, gaging, framing, artificial aging and packaging warehousing. The control process of the technology is finer, the aluminum alloy obtained through the extrusion procedure is good in mechanical performance, the uniformity of the sectional bar is good, and the aging production efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of preparation of aluminum alloy profiles, in particular to a preparation method of 6 series aluminum alloy profiles. Background technique [0002] Compared with other aluminum alloys, 6-series aluminum alloys have moderate strength and excellent welding performance, and have been widely used in transportation and other fields. However, this series of aluminum alloys has a large content of alloy elements, high requirements for solid solution strengthening environment, reasonable extrusion temperature and high requirements for extrusion process control, and high quenching sensitivity. In daily industrial production, the control range of each link of the extrusion process is relatively wide, and the control of the online quenching link is difficult, and it is impossible to ensure that each wall of the profile is quenched uniformly, resulting in poor product performance uniformity and stability, and various mec...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C21/08C22C21/00C22F1/047C22F1/04C22F1/043B21C23/02
CPCC22C21/02B21C23/02C22C21/00C22C21/08C22F1/04C22F1/043C22F1/047
Inventor 何建贤赵启忠来临景启明杨鸿驰
Owner 广西南南铝加工有限公司
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