Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Treating method for improving strength and toughness of aluminum alloy materials

A technology of an aluminum alloy material and a processing method, which is applied in the processing field of improving the strength and toughness of the aluminum alloy material, and can solve the problems of difficulty in improving the mechanical properties of the material and the like

Inactive Publication Date: 2013-12-25
CHANGZHOU RUNYUAN WARP KNITTING MACHINERY
View PDF2 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the traditional heat treatment process plays an important role in improving the mechanical properties of materials, it is becoming more and more difficult to continue to improve the mechanical properties of materials. Therefore, the traditional heat treatment process is not only improved, but a breakthrough in the traditional heat treatment process is required.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 6061 aluminum alloy rods are used as samples for strengthening treatment. The weight percentages of the components of the aluminum alloy are Mg: 0.8% to 1.2%, Si: 0.4% to 0.8%, Cu: 0.15% to 0.4%, Cr: 0.15 %~0.35%, Mn: 0.15%, Fe: 0.7%, Zn: 0.25%, Ti: 0.15%, and the balance is Al.

[0030] Solution treatment; the aluminum alloy bar is placed in a heat treatment furnace at 450 o C at a temperature of 3 h.

[0031] Quenching treatment; put the aluminum alloy bar after solid solution treatment into 18 o C in water and then cooled to room temperature.

[0032] Aging treatment; place the quenched aluminum alloy bar in a heat treatment furnace, and heat it at 100 o C at a temperature of 30h, and then the aluminum alloy bar is naturally cooled to room temperature.

[0033] Cryogenic treatment and ultrasonic field impact treatment; place the aluminum alloy rod after aging treatment in a cryogenic box, start from room temperature, and cool down at a rate of 10 o C / min, coolin...

Embodiment 2

[0037] The 7055 aluminum alloy bar is used as the sample for strengthening treatment. The weight percentage of each component of the aluminum alloy is Zn: 8%, Mg: 2.2%, Cu: 2.2%, Zr: 0.2%, Mn≤0.05%, Fe≤ 0.1%, Si≤0.15%, Ti≤0.06%, Cr≤0.04%, and the balance is Al.

[0038] Solution treatment; the aluminum alloy bar is placed in a heat treatment furnace at 475 o C for 2 h at a temperature.

[0039] Quenching treatment; put the aluminum alloy bar after solid solution treatment into 20 o C in water and then cooled to room temperature.

[0040] Aging treatment; the quenched aluminum alloy bar is placed in a heat treatment furnace at 120 o C temperature for 24h, then the aluminum alloy rods were naturally cooled to room temperature.

[0041] Cryogenic treatment and ultrasonic field impact treatment; place the aged-treated aluminum alloy rod in a cryogenic box, start from room temperature, and cool at a rate of 1 o C / min, cooling the aluminum alloy bar to -196 o C for 24 hours at...

Embodiment 3

[0045] 6 high-silicon (Si) aluminum alloy rods were used as samples for strengthening treatment. The weight percentages of the components of the aluminum alloy were Si: 20%, Fe: 2.0%, Sr: 0.12%, and the balance was Al.

[0046] Solution treatment; the aluminum alloy bar is placed in a heat treatment furnace at 540 o C for 4 h at a temperature.

[0047] Quenching treatment; put the aluminum alloy bar after solid solution treatment into 22 o C in water and then cooled to room temperature.

[0048] Aging treatment; the quenched aluminum alloy bar is placed in a heat treatment furnace at 150 o C temperature for 12h, then the aluminum alloy rods were naturally cooled to room temperature.

[0049] Cryogenic treatment and ultrasonic field impact treatment; place the aged-treated aluminum alloy rod in a cryogenic box, start from room temperature, and cool at a rate of 5 o C / min, cooling the aluminum alloy bar to -196 o Insulation at ultra-low temperature of C for 12 hours, when t...

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

PropertyMeasurementUnit
tensile strengthaaaaaaaaaa
yield strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a treating method for improving strength and toughness of aluminum alloy materials. The treating method for improving the strength and the toughness of the aluminum alloy materials comprises solution treatment and aging treatment, and further comprises subzero treatment after the aging treatment and ultrasonic filed shock treatment in the process of the subzero treatment. The process of the subzero treatment comprises the steps of cooling the aluminum alloy materials to ultralow temperature at minus 196DEG C from the starting room temperature at the cooling speed 1-10DEG C / min, and holding the temperature for 12-30 hours. Preferably, the ultrasonic filed shock treatment is carried out at the late period of the subzero treatment, the intensity of an ultrasonic field is 1-50Kw / m2, the frequency of the ultrasonic field is 10-40KHZ, and the treating time in the ultrasonic field is 60-200 seconds. The aluminum alloy materials after the subzero treatment and the ultrasonic field shock treatment are put into an oven which is 110DEG C in temperature, the holding time is 2-6 hours, and then the aluminum alloy materials in the oven are put in air to recover to the room temperature naturally. According to the treating method for improving the strength and the toughness of the aluminum alloy materials, the aluminum alloy materials are made to be compact in structure and small in residual stress, and the roughness is synchronously improved to a large extent.

Description

technical field [0001] The invention relates to a strengthening treatment method of an aluminum alloy material, in particular to a treatment method for improving the strength and toughness of an aluminum alloy material. Background technique [0002] As one of the lightest metal alloy materials, aluminum alloy materials have high specific strength and specific stiffness, good thermal and electrical conductivity, damping and vibration reduction, electromagnetic shielding, and easy processing and forming. Therefore, the preparation of high-strength and tough aluminum alloy materials is Material application and development trend. [0003] From the perspective of existing technologies, traditional heat treatment or equal channel angular extrusion (ECAP) methods are usually used to achieve fine-grain strengthening of aluminum alloy materials to improve the mechanical properties of the materials. There are two existing Chinese patents for improving the strength and toughness of al...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/04
Inventor 王占洪张勋寅朱晓宏
Owner CHANGZHOU RUNYUAN WARP KNITTING MACHINERY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products