Cryogenic treatment process and device for improving strength of 6016 aluminum alloy cold-rolled plate
A cryogenic treatment and cold-rolled plate technology, which is applied in the field of cryogenic treatment process and its devices, can solve the problems of less research on cryogenic treatment and less application of cryogenic treatment process, and achieve the effect of improving the scope of application and reducing the layout length
Inactive Publication Date: 2020-04-24
CENT SOUTH UNIV
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Problems solved by technology
At present, there are many studies on Al-Zn-Mg-Cu, Al-Cu and Al-Si alloys, less research on cryogenic treatment of 6016 aluminum alloy, and less application of cryogenic treatment process on 6016 aluminum alloy cold-rolled sheet
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[0035] The following is further described in detail through specific implementation methods:
[0036] The reference signs in the drawings of the description include: bracket 1, guide rail 2, winding conveying device 3, winding disk 3a, intermittent motor 3b, rotating drum 4, rotating shaft 5, bump 6, horizontal shaft 7, pick 8. Extension spring 9, profile block 10, vertical long axis 11.
[0037] The embodiment is basically as attached figure 1 As shown: the cryogenic treatment device for improving the strength of 6016 aluminum alloy cold-rolled plate includes an inlet guide device, and also includes a bracket 1 and a guide rail 2 for conveying the plate. It has a progressive pressing mechanism; the winding conveying device 3 includes a winding disk 3a and an intermittent motor 3b that drives the winding disk 3a to rotate in a circumferential direction.
[0038] Please refer to figure 2 , the progressive pressing mechanism includes a horizontally placed rotating drum 4, a ...
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The invention discloses a cryogenic treatment process and device for improving the strength of a 6016 aluminum alloy cold-rolled plate in the field of material treatment, and aims to make up the blankof the prior art in the performance direction of 6xxx aluminum alloy cold-rolled plates and enhance the mechanical property of the cold-rolled plates. The technical scheme is as follows: the internalstress in an alloy is induced during primary cryogenic treatment so that an alloy matrix can be dislocated, and then secondary cryogenic treatment is carried out to enhance the precipitation drivingforce of Mg and Si atoms and promote the formation of a GP zone core in the aluminum alloy. Compared with the prior art for improving the application range, after two times of cryogenic treatment in the technical scheme, each property of the cold-rolled plate is obviously improved, and the hardness, yield strength, tensile strength and elongation rate of the cold-rolled plate are obviously improved.
Description
technical field [0001] The invention belongs to the field of material processing, in particular to a cryogenic treatment process and a device for improving the strength of a 6016 aluminum alloy cold-rolled plate. Background technique [0002] Cryogenic treatment is a treatment process that uses liquid nitrogen as the cooling medium to cool the metal at -130°C to -196°C for a certain period of time to improve the properties of the metal. At present, cryogenic treatment is widely used in improving the performance of steel. There are two main methods of cryogenic treatment, liquid method and gas method. The liquid method is to put the material directly into liquid nitrogen, immerse it in the environment of -196°C for a period of time, and then take it out directly. The gas method is to vaporize the liquid cooling medium first, and put the metal in the vaporized low-temperature environment for a period of time before taking it out. Cryogenic treatment can not only reduce the ...
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IPC IPC(8): C22F1/04
CPCC22F1/04
Inventor 王旭成黄元春李莹
Owner CENT SOUTH UNIV