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A kind of processing method of aluminum alloy medium and thick plate

A processing method and aluminum alloy technology, which is applied in the field of aluminum alloy medium and thick plates, can solve the problems that the surface deformation of the rolled plate is larger than that of the center, the structure of the plate is uneven in the height direction, and the size of the tool and mold is unstable. The effect of reduction, uniform structure and high hardness

Active Publication Date: 2016-03-30
广西南南铝加工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production of aluminum alloy medium and heavy plates by hot rolling has the following disadvantages: (1) The surface deformation of the rolled plate is larger than that of the center, and the height of the plate is uneven; (2) The texture of the plate after rolling results in anisotropy ; (3) The flatness and thickness of the rolled plate are only controlled by the roll, and the accuracy is difficult to grasp; (4) The internal stress formed during the rolling process causes the tool and mold to be unstable in the machining process or during use; (5) The hot rolling method has many processes, long production cycle and high cost
The disadvantage of the casting method is that the strength of the produced plate is low, which affects the performance, and does not have the necessary hardness during high-speed free cutting

Method used

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  • A kind of processing method of aluminum alloy medium and thick plate

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] According to SI0.2kg; mg0.5kg; CU1.0kg; CR0.22kg; Fe0.1kg; Zn0.3kg; Ti0.02kg; V0.2kg; ZR0.02kg and Al97.44kg, add a melting agent with a weight content of 2%contentThen heated the material to 600 to 1000 ° C to keep the material from melting 1 to 10h, filter out the non -melting material in the aluminum melt, cool to room temperature, get aluminum alloy ingot blank, cut the aluminum alloy ingot into 6mm thickness, thicknessThe board; keep the board at 48 ° C for 4h, and then immediately use a spray -type quenching to control the plate. The cooling speed of the plate is about 10 ° C / second.The timing of the board is carried out by 20h, cut into a certain thickness through the timeliness processing, and then use the milling method and grinding method to smoothly treat it to obtain the thick plate in the aluminum alloy and the packaging into the warehouse.

[0039] During the melting, the pupae are refined and the electromagnetic stirring is applied.

Embodiment 2

[0041] According to SI0.6kg; mg0.9kg; CU0.8kg; CR0.09kg; mn0.1kg; Zn0.05kg; Ti0.05kg; V0.02kg; ZR0.08kg and Al97.31kg mix, add melter with a weight of 3%contentThen heated the material to 600 to 1000 ° C to keep the material from melting the state of 1 to 10h, filter out the non -melting material in the aluminum melt, cool to room temperature, get aluminum alloy ingot blank, cut the aluminum alloy ingot into 20mm thickness, thicknessThe board; keep the board at 520 ° C for 3h, and then immediately use a spray -type quenching to control the plate. The cooling speed of the plate is about 8 ° C / second.Perform the timing of 15h, cut the plates that have been processed into a certain thickness, and then use the milling method and grinding method to smoothly treat it to obtain the thick plate in the aluminum alloy and pack it into the warehouse.

[0042] During the melting, the pupae are refined and the electromagnetic stirring is applied.

Embodiment 3

[0044] According to SI0.8kg; mg1.2kg; CU0.6kg; CR0.02kg; mn1.0kg; Fe0.3kg; Ti0.12kg; V0.3kg and Al95.66kg mix, add 4%melting agent with weight content, and then heating materialsTo 600 ~ 1000 ° C, keep the material of 1 to 10h, filter out the non -melting material in the aluminum melt, cool to room temperature, get aluminum alloy ingots, cut the aluminum alloy ingot into a 50mm thick plate;The plate is insulated for 2h at 550 ° C, and then the plate is immediately quenched with spray -type quenching to control the cooling speed of the board is about 6 ° C / second.The timeliness processing, cut into a certain thickness after the timeliness processing, then use the milling method and grinding method to smooth the surface, obtain the thick board in the aluminum alloy, and the packaging into the warehouse.

[0045] During the melting, the pupae are refined and the electromagnetic stirring is applied.

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Abstract

The invention discloses a processing method of an aluminum alloy medium and thick plate, comprising the following steps: smelting, degassing and filtering, casting, sawing, homogenizing treatment, quenching, residual stress removal, aging treatment, slicing and surface treatment to obtain an aluminum alloy Plate. The aluminum alloy plate of the invention has uniform structure, low internal stress, high dimensional accuracy, high strength, low production cost and good economic and social benefits.

Description

Technical field [0001] The invention involves a thick plate in an aluminum alloy, especially the aluminum alloy plates for tools or molds (but not limited to its field). The invention also involves the production process of this aluminum alloy plate. Background technique [0002] The thick plate in aluminum alloy is an ideal material for manufacturing molds.Compared with industrial models, the advantages of aluminum alloy are: (1) less density.The density of aluminum is only about one -third of the steel, so aluminum alloy molds are more easy to carry, install, and use; (2) high thermal conductivity.The thermal guidance rate of aluminum alloy is about 4 times that of steel, which can shorten the cooling time of parts during the production process; (3) the cutting performance is good.The cutting speed of aluminum alloys can reach 5 times that of steel, which can be cut at high speed, significantly shortening the manufacturing cycle of the work mold, and reducing the wear of the cu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22F1/04C22C21/18C22C21/08C22C21/02B23P15/00
Inventor 何克准郑玉林周文标唐伟彭自业赵茂密
Owner 广西南南铝加工有限公司
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