Unlock instant, AI-driven research and patent intelligence for your innovation.
A kind of heat treatment method and application of 6000 series aluminum alloy
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A heat treatment method and aluminum alloy technology, which is applied to the intermediate annealing heat treatment for improving the surface defects of 6000 series aluminum alloy body panels, and the heat treatment field of 6000 series aluminum alloys to achieve the effects of improving surface quality, expanding the application range, and increasing the yield strength increment
Active Publication Date: 2020-11-20
GRIMAT ENG INST CO LTD
View PDF2 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0006] The purpose of the present invention is to overcome the shortcomings of the existing 6000-series aluminum alloy preparation methods, aiming at the more complex technical characteristics of the alloy system presented by the current 6000-series aluminum alloy body panels, to develop an intermediate annealing heat treatment process suitable for complex alloy systems, Improve the surface quality of the plate while improving the structure and morphology of the alloy and increasing the yield strength increment of the paint hardening
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0021] Apply the present invention to commercial AA6016 aluminum alloy, its nominal composition range (mass fraction, %): Mg 0.25~0.6, Si 1.0~1.5, Cu≤0.2, Mn≤0.2, Zn≤0.2, Ti≤0.15, Fe≤ 0.5, balance Al and unavoidable other impurities; select a typical alloy composition: 0.45% Mg, 1.10% Si, 0.05% Cu, 0.15% Fe, 0.01% Ti, balance Al and unavoidable others Impurities. The alloy is obtained through melting and casting, homogenization heat treatment, hot rolling, intermediate annealing, cold rolling and other steps to obtain a plate with a thickness of 1.0mm, and the plate is placed in an air furnace, and the intermediate annealing treatment is realized in two steps. The first step: after hot rolling , Intermediate annealing treatment is carried out before cold rolling, and the plate is raised from room temperature to temperature T 1 Carry out heat preservation treatment, heat preservation time is t 1 , followed by the temperature T 1 Cool to room temperature, the cooling method i...
Embodiment 2
[0031] Applying the present invention to a novel 6000 series aluminum alloy, its nominal composition range (mass fraction, %): Mg0.8-1.6, Si 0.4-1.0, Cu 0.05-0.3, Zn 0.3-0.85, Mn 0.05-0.15, Zr 0.05-0.15, Fe≤0.35, the balance of Al and other unavoidable impurities; select a typical alloy composition: 1.20% Mg, 0.60% Si, 0.20% Cu, 0.63% Zn, 0.10% Mn, 0.12% Zr, 0.13% Fe, the balance Al and other unavoidable impurities. The alloy is obtained through melting and casting, homogenization heat treatment, hot rolling, intermediate annealing, cold rolling and other steps to obtain a plate with a thickness of 1.0mm. The plate is placed in an induction furnace, and the intermediate annealing treatment is realized in two steps. The first step: after hot rolling , Intermediate annealing treatment is carried out before cold rolling, and the plate / coil is raised from room temperature to temperature T 1 Carry out heat preservation treatment, heat preservation time is t 1 , followed by the te...
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
Login to View More
Abstract
The invention relates to a thermal treatment method and application of 6000-series aluminum alloy, belonging to the technical field of thermal treatment of aluminum alloy. The method comprises the following steps: carrying out annealing treatment after hot rolling and before cold rolling, heating the 6000-series aluminum alloy from the room temperature to a temperature T1, maintaining the temperature for t1, and cooling from the temperature T1 to the room temperature; and heating the 6000-series aluminum alloy from the room temperature to a T2 between cold rolling passes, maintaining the temperature for t2, and then cooling from the temperature T2 to the room temperature, wherein T1 is more than or equal to 350 DEG C and less than or equal to T2, T2 is more than or equal to T1 and less than or equal to 500 DEG C, t1 is more than or equal to 0.5h and less than or equal to 5h and is equal to t2, and the annealing and the temperature maintenance are carried out in a thermal treatment heating furnace. According to the thermal treatment method, the mechanical property of a 6000-series aluminum alloy panel is maintained, meanwhile, the surface quality of the 6000-series aluminum alloy panel is obviously improved, the surface defects of the 6000-series aluminum alloy panel are eliminated, so that the thermal treatment method has important significance on the extension of the application range of aluminum alloy vehicle body plates.
Description
technical field [0001] The present invention relates to a heat treatment method and application of a 6000 series (Al-Mg-Si series) aluminum alloy, in particular to an intermediate annealing heat treatment method suitable for improving the surface defects of a 6000 series aluminum alloy body panel and its application, belonging to the aluminum Alloy heat treatment technology field. Background technique [0002] Energy saving and emission reduction is the eternal development theme of the automobile industry. At present, governments of various countries have promulgated laws and regulations on energy saving and emission reduction, CO 2 and target values for emissions of harmful gases and particles. In order to meet this goal, automakers have turned their attention to lightweight vehicles. Aluminum alloy has the characteristics of light weight, wear resistance, corrosion resistance, high specific strength, good impact resistance, easy surface coloring and recyclability, and ...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More