Unlock instant, AI-driven research and patent intelligence for your innovation.

High-strength corrosion-resistant aluminum alloy extruded material and manufacturing method thereof

A technology of corrosion resistance and manufacturing method, applied in the field of aluminum alloy material manufacturing, can solve problems such as seawater resistance and strength that cannot meet development, and achieve the effects of high work hardening rate, excellent weldability, and extended service life

Active Publication Date: 2014-09-17
南通佳坤新材料科技有限公司
View PDF6 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the development requirements of modern ships, the seawater resistance and strength of 5052 aluminum alloy are increasingly showing that they cannot meet the development requirements.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-strength corrosion-resistant aluminum alloy extruded material and manufacturing method thereof
  • High-strength corrosion-resistant aluminum alloy extruded material and manufacturing method thereof
  • High-strength corrosion-resistant aluminum alloy extruded material and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The percentage by weight of each component casted by the above-mentioned manufacturing method is: Si: 0.12%; Fe: 0.18%; Mg: 2.5%; Ti: 0.01%; RE material: 0.12%; % or less; the aluminum rod with the balance of Al; then the aluminum rod is preheated to 480°C and then sent to a double-action horizontal forward extrusion machine for extrusion. The preheating temperature of the extrusion barrel is controlled at 400°C, The pressing speed is controlled at 7m / min, and the outlet of the extruder is quenched online; the unit sample is taken for testing, as shown in the table below.

[0030]

Embodiment 2

[0032] The percentage by weight of each component cast by the above manufacturing method is: Si: 0.14%; Fe: 0.21%; Mg: 2.55%; Ti: 0.02%; RE material: 0.14%; impurities Cu, Mn, Cr and Zn are all at 0.08 % or less; the aluminum rod with the balance of Al; then the aluminum rod is preheated to 490°C and then sent to a double-action horizontal forward extrusion machine for extrusion. The preheating temperature of the extrusion cylinder is controlled at 420°C, and the extrusion The pressing speed is controlled at 7m / min, and the outlet of the extruder is quenched online; the unit sample is taken for testing, as shown in the table below.

[0033]

Embodiment 3

[0035] The percentage by weight of each component casted by the above manufacturing method is: Si: 0.16%; Fe: 0.23%; Mg: 2.55%; Ti: 0.03%; RE material: 0.16%; impurities Cu, Mn, Cr and Zn are all at 0.08 % or less; the aluminum rod with the balance of Al; then the aluminum rod is preheated to 500°C and then sent to a double-action horizontal forward extrusion machine for extrusion. The preheating temperature of the extrusion cylinder is controlled at 430°C, and the extrusion The pressing speed is controlled at 7m / min, and the outlet of the extruder is quenched online; the unit sample is taken for testing, as shown in the table below.

[0036]

[0037] It can be seen from the above examples that the compressive strength, non-proportional elongation, elongation after fracture and corrosion resistance of aluminum alloy extrusion materials added with La, Sc and Zr elements are all higher than those specified in GBT3880.2-2006 The 170, 70, 15, 24h / 9 of the 5052 aluminum alloy in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a high-strength corrosion-resistant aluminum alloy extruded material which comprises the following components in percentage by weight: 0.12-0.16% of Si, 0.18-0.23% of Fe, 2.5-2.55% of Mg, 0.01-0.03% of Ti, 0.12-0.16% of RE material, no more than 0.08% of Cu, no more than 0.08% of Mn, no more than 0.08% of Cr, no more than 0.08% of Zn and the balance of Al. According to the invention, a small quantity of elements La, Sc and Zr are added, the aluminum alloy extruded material is excellent in weldability, formability, cold workability, corrosion resistance, oxidation resistance, fatigue resistance and toughness, has high work hardening rate and can be polished, thereby greatly prolonging the service life of the material, saving the maintenance cost and widening the application range of the invention to some extent.

Description

technical field [0001] The invention relates to a manufacturing method of an aluminum alloy material, in particular to a high-strength corrosion-resistant aluminum alloy extruded material and a manufacturing method thereof. Background technique [0002] Reducing the mass of the transportation vehicle itself is the mainstream of the current transportation vehicle design, especially for the aviation manufacturing industry. 5052 aluminum alloy is an aluminum-magnesium series alloy with medium strength and good formability. Its processing structure is mostly in the form of sheet metal parts and thin-walled profiles with complex shapes. It is currently widely used in aviation, automobiles, ships, and trams. , tower buildings and furniture and other industrial fields. However, in the development requirements of modern ships, the seawater resistance and strength of 5052 aluminum alloy are increasingly showing that they cannot meet the development requirements. Contents of the in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C22C21/08
Inventor 陆永唐继勇杨明军褚衍玲杜文亮
Owner 南通佳坤新材料科技有限公司