Production method of aluminum magnesium alloy rod for rivets

A technology of aluminum-magnesium alloy and production method, which is applied in the field of aluminum-magnesium alloy rods, can solve problems such as low corrosion resistance, high-magnesium alloys are prone to segregation, and affect the performance of rolling performance products, so as to avoid the formation of segregation and improve Effect of Shear Strength and Elongation

Inactive Publication Date: 2017-09-08
JIANGSU HENGTONG ELECTRICAL SPECIAL WIRE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Rivets are mainly used for riveting alloy structures. At present, 6XXX series aluminum alloys are mostly used as rivet materials. Although they have high plasticity and good processing performance, they still have low shear strength and elongation during the riveting process, and There is a tendency to crack during welding, and the corrosion resistance is not high, which seriously limits the application range of rivets.
In order to solve the above problems, the present invention selects 5052 aluminum alloy as the base material of the rivet. However, the high-magnesium alloy is prone to segregation during the casting process, which seriously affects the rolling performance and the usability of the product.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~4

[0014] Embodiment 1~4: a kind of production method of aluminum-magnesium alloy rod for rivet, described aluminum-magnesium alloy rod is made up of following mass percentage components, as shown in table 1:

[0015] Table 1

[0016] Component Example 1 Example 2 Example 3 Example 4 Mg2.2~2.8wt% 2.8wt% 2.5wt% 2.6wt% 2.2wt% Cr0.15~0.35wt% 0.18wt% 0.25wt% 0.3wt% 0.32wt% Fe≤0.4wt% 0.3wt% 0.35wt% 0.2wt% 0.26wt% Sr0.1~0.15wt% 0.12wt% 0.14wt% 0.1wt% 0.13wt% Ca0.05~0.1wt% 0.09wt% 0.06wt% 0.08wt% 0.07wt% Composite Al margin margin margin margin

Embodiment 1

[0017] The composite Al in Example 1 is made by mixing Al99.7 aluminum ingot, aluminum-chromium alloy (AlCr5), and aluminum-iron alloy (AlFe10) in a ratio of 100:22:9 by weight; the composite Al in Example 2 is made of Al99.7 Aluminum ingot, aluminum-chromium alloy (AlCr5), aluminum-iron alloy (AlFe10) are mixed according to the ratio of 100:25:12 parts by weight; the composite Al in Example 3 is made of Al99.7 aluminum ingot, aluminum-chromium alloy (AlCr5), aluminum Iron alloy (AlFe10) is mixed according to the weight ratio of 100:28:14; the composite Al of Example 4 is made of Al99.7 aluminum ingot, aluminum chromium alloy (AlCr5), aluminum iron alloy (AlFe10) according to the weight ratio of 100:24:10 Mixed proportions.

[0018] The aluminum-magnesium alloy rod for the rivet is obtained through the following steps:

[0019] Step 1. Al99.7 aluminum ingot, aluminum-chromium alloy (AlCr5), aluminum-iron alloy (AlFe10), Mg2.2~2.8wt%, Cr0.15~0.35wt%, Fe≤0.4wt%, Sr0.1~ 0.15wt%...

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Abstract

The invention discloses a production method of an aluminum-magnesium alloy rod for rivets, which is obtained through the following steps: Al99.7 aluminum ingot, aluminum-chromium alloy (AlCr5), aluminum-iron alloy (AlFe10), Mg2.2-2.8wt%, Cr0 .15~0.35wt%, Fe≤0.4wt%, Sr0.1~0.15wt%, Ca0.05~0.1wt% put into the melting furnace for smelting, degassing and slag removal by appropriate conventional methods, then casting; start induction heating furnace, adjust the heating power to heat the billet temperature to 350-480°C, and lead the billet to the continuous rolling mill to be rolled into a wire rod with a diameter of 9.5mm. Rolling composition, finishing rolling is composed of 8 three-roll rolling mills, rolling to form aluminum-magnesium alloy. The invention avoids the formation of segregation, no cracking occurs in the subsequent processing, the tensile strength reaches 300MPa, and the shearing strength and elongation are improved.

Description

technical field [0001] The invention relates to an aluminum-magnesium alloy rod, in particular to a production method of an aluminum-magnesium alloy rod for rivets. Background technique [0002] Rivets are mainly used for riveting alloy structures. At present, 6XXX series aluminum alloys are mostly used as rivet materials. Although they have high plasticity and good processing performance, they still have low shear strength and elongation during the riveting process, and There is a tendency to crack during welding, and the corrosion resistance is not high, which seriously limits the application range of rivets. In order to solve the above problems, the present invention selects 5052 aluminum alloy as the base material of the rivet. However, the high-magnesium alloy is prone to segregation during the casting process, which seriously affects the rolling performance and the usability of the product. Contents of the invention [0003] The invention provides a production metho...

Claims

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Application Information

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IPC IPC(8): C22C21/06C22C1/03
CPCC22C21/06C22C1/026C22C1/03
Inventor 贾伟潘健陈松蔺亚强孟博张军马军
Owner JIANGSU HENGTONG ELECTRICAL SPECIAL WIRE CO LTD
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