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Aluminum alloy section with low Vickers hardness and preparation method thereof

A technology of aluminum alloy profiles and Vickers hardness, which is applied in the field of chemical composition and profile preparation of 6063 aluminum alloys, can solve the problems of long natural aging storage time, deviation of Vickers hardness of profiles, occupied space and funds, etc., and achieve surface quality and The effect of improving mechanical properties, improving production efficiency and reducing energy consumption

Inactive Publication Date: 2018-10-16
江苏江南创佳型材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the ordinary 6063 composition and conventional extrusion production process are used, the hardness of the profile after the aging process will be greater than HV60; if the natural aging process is used, the Vickers hardness of the profile will be greatly deviated and unstable, and the natural aging storage It takes a long time and takes up space and funds

Method used

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preparation example Construction

[0026] A method for preparing an aluminum alloy profile with low Vickers hardness, the steps of the preparation method are as follows: a. Select an aluminum rod, the composition and weight percentage of the aluminum rod are: Si is 0.30% to 0.36%, and Fe is 0 to 0.12% , Cu 0-0.01%, Mn 0-0.02%, Mg 0.47%-0.53%, Cr 0-0.01%, Zn 0-0.01%, Ti 0-0.07%, impurities 0-0.02% , the balance is Al, and the sum of the percentages of the above components is 100%; b, the aluminum rod is put into the extruder to extrude the profile blank; c, the profile blank is subjected to an aging process to obtain a Vickers hardness of HV42~ Aluminum profile of HV48. Among them, the detailed steps of putting the aluminum rod into the extrusion machine to obtain the profile blank are: b1. Before extrusion, firstly measure and control the temperature of the aluminum rod, mold, and extrusion cylinder. When the aluminum rod is heated to 430 ° C ~ 440 ° C, After the mold is heated to 450°C-460°C and the extrusion...

Embodiment 1

[0029] A method for preparing an aluminum alloy profile with low Vickers hardness, the steps of the preparation method are as follows: a, select an aluminum rod, the composition and weight percentage of the aluminum rod are: 0.33% for Si, 0.05% for Fe, and 0.01% for Cu , Mn is 0.01%, Mg is 0.50%, Cr is 0.005%, Zn is 0.008%, Ti is 0.04%, impurities are 0.015%, and the balance is Al, and the sum of the percentages of the above-mentioned components is 100%; b. The aluminum rod is put into the extrusion machine for extrusion. Before extrusion, the temperature measurement and control of the aluminum rod, mold and extrusion cylinder are carried out first. When the aluminum rod is heated to 430°C, the mold is heated to 455°C, and the extrusion cylinder is heated to After 400°C, start extrusion again; during extrusion, the outlet temperature of the extruder is controlled at 490°C and the discharge speed of the extruder is controlled at 7m / min; the profile blank extruded by the extruder...

Embodiment 2

[0031] A method for preparing an aluminum alloy profile with low Vickers hardness, the steps of the preparation method are as follows: a, select an aluminum rod, the composition and weight percentage of the aluminum rod are: 0.34% for Si, 0.10% for Fe, and 0.007% for Cu , Mn is 0.015%, Mg is 0.51%, Cr is 0.01%, Zn is 0.01%, Ti is 0.07%, impurities are 0.01%, and the balance is Al. The sum of the percentages of the above-mentioned components is 100%; b. The aluminum rod is put into the extrusion machine for extrusion. Before extrusion, the temperature measurement and control of the aluminum rod, mold and extrusion cylinder are carried out first. When the aluminum rod is heated to 438°C, the mold is heated to 460°C, and the extrusion cylinder is heated to Extrusion starts after 410°C; during extrusion, the outlet temperature of the extruder is controlled at 480°C and the discharge speed of the extruder is controlled at 8m / min; the profile blank extruded by the extruder is quenche...

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Abstract

The invention discloses an aluminum alloy section with the low Vickers hardness and a preparation method thereof. The aluminum alloy section is prepared from the components in percentage by weight: 0.30 to 0.36 percent of Si, 0 to 0.12 percent of Fe, 0 to 0.01 percent of Cu, 0 to 0.02 percent of Mn, 0.47 to 0.53 percent of Mg, 0 to 0.01 percent of Cr, 0 to 0.01 percent of Zn, 0 to 0.07 percent ofTi, 0 to 0.02 percent of impurities, and the balance Al, wherein the sum of percentage of the components is 100 percent. The preparation method comprises the steps of adopting an aluminum rod preparedfrom the components, treating through an extrusion process and an aging process, and obtaining the aluminum alloy section with the Vickers hardness being HV42 to HV48. According to the aluminum alloysection with the low Vickers hardness and the preparation method thereof provided by the invention, through reasonably allocating the components of the aluminum alloy section and concretely definingthe extrusion process and the aging process, the aluminum alloy section with the Vickers hardness being HV42 to HV48 can be obtained, so that the energy consumption is reduced, and the cost is remarkably saved.

Description

technical field [0001] The invention relates to the field of chemical composition and profile preparation of 6063 aluminum alloy, in particular to an aluminum alloy profile with low Vickers hardness and a preparation method thereof. Background technique [0002] The widening application of 6063 aluminum alloy in construction, decoration, automobile, aviation, electronics and other fields has higher requirements for the strength performance, corrosion resistance and oxidation coloring performance of the new modified deformed aluminum alloy. If the ordinary 6063 composition and conventional extrusion production process are used, the hardness of the profile after the aging process will be greater than HV60; if the natural aging process is used, the Vickers hardness of the profile will be greatly deviated and unstable, and the natural aging storage It takes a long time and takes up space and funds. Contents of the invention [0003] The object of the present invention is to p...

Claims

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Application Information

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IPC IPC(8): C22C21/08C22C1/02C22F1/047
Inventor 梅泽锋周宝华黄晓中董春泉
Owner 江苏江南创佳型材有限公司
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