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3003 aluminum alloy plate and pretreatment process thereof

An aluminum alloy plate and process technology, applied in the field of 3003 aluminum alloy plate and its pretreatment process, can solve the problems of increasing the scrap rate, affecting the deep drawing process, and low strength, so as to reduce the product scrap rate, improve enterprise benefits, save The effect of production costs

Inactive Publication Date: 2019-08-30
FUJIAN CHUANZHENG COMM COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] 3003 aluminum alloy is an AL-Mn series alloy, which is the most widely used anti-rust aluminum. The strength of this alloy is not high (slightly higher than industrial pure aluminum), and it cannot be strengthened by heat treatment. Therefore, cold working method is used to improve its mechanical properties. Properties: high plasticity in annealed state, good plasticity in semi-cold work hardening, low plasticity in cold work hardening, good corrosion resistance, good weldability, poor machinability
[0003] When 3003 aluminum alloy is used for deep drawing to prepare containers, there are two main problems in the production process: the first problem is that there are many defects in the material itself, such as inclusions, pores and micro cracks, etc., which affect the deep drawing process. Increased scrap rate; the second problem is that the grain structure of the material is coarse, it is not easy to obtain a cubic texture during thermal processing, and the deep drawing process is prone to earing, which affects the final product

Method used

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  • 3003 aluminum alloy plate and pretreatment process thereof
  • 3003 aluminum alloy plate and pretreatment process thereof
  • 3003 aluminum alloy plate and pretreatment process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1 Preparation of a kind of 3003 aluminum alloy aluminum ingot

[0031] The first refining: Put the raw material 3003 aluminum ingot into the melting furnace, heat it to 680°C, then pour the refining agent into the molten aluminum while stirring, and then perform the first slag removal; the refining agent is based on the amount of 4% of the mass of the molten aluminum join in. Part of the refining agent is suspended on the surface of the molten aluminum to isolate the atmosphere, and the rest reacts with the aluminum slag to bring the aluminum slag out of the surface of the molten aluminum.

[0032] Secondary refining: After the first slag removal, the molten aluminum is stirred while being sprinkled with a refining agent, and then the second slag removal is performed; the refining agent is added in an amount of 2.5% based on the mass of the molten aluminum. Secondary slag removal can make the obtained molten aluminum cleaner.

[0033] First deterioration: a...

Embodiment 2

[0037] Embodiment 2 Preparation of a kind of 3003 aluminum alloy aluminum ingot

[0038] The first refining: Put the raw material 3003 aluminum ingot into the melting furnace, heat it to 700°C, then pour the refining agent into the molten aluminum while stirring, and then carry out the first slag removal; the amount of the refining agent is 3% based on the mass of the molten aluminum join in. Part of the refining agent is suspended on the surface of the molten aluminum to isolate the atmosphere, and the rest reacts with the aluminum slag to bring the aluminum slag out of the surface of the molten aluminum.

[0039] First deterioration: adding Al to molten aluminum after slag removal 5 TiB refiner and metal Ce, after stirring evenly, let it stand for 10-15min to obtain the first metamorphic aluminum liquid; in the first metamorphic step, the Al 5 The TiB refiner is added at 2% based on the mass of the first-modified molten aluminum; the metal Ce is added at 0.5% based on the ...

Embodiment 3

[0043] Embodiment 3 Preparation of a kind of 3003 aluminum alloy aluminum ingot

[0044]The first refining: put the raw material 3003 aluminum ingot into the melting furnace, heat it to 700°C, then pour the refining agent into the molten aluminum while stirring, and then carry out the first slag removal; the amount of the refining agent is 5% based on the mass of the molten aluminum join in. Part of the refining agent is suspended on the surface of the molten aluminum to isolate the atmosphere, and the rest reacts with the aluminum slag to bring the aluminum slag out of the surface of the molten aluminum.

[0045] Secondary refining: After the first slag removal, the molten aluminum is stirred while being sprinkled with a refining agent, and then the second slagging is performed; the refining agent is added in an amount of 3% based on the mass of the aluminum liquid. Secondary slag removal can make the obtained filtrate cleaner.

[0046] First deterioration: adding Al to mol...

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Abstract

The invention provides a pretreatment process of a 3003 aluminum alloy plate. The process comprises the following steps of primary refining, primary deterioration and thermal treatment. According to the technical scheme, Al5TiB and Ce are combined for deterioration of molten aluminum, the impurity removal rate is improved by 31.8% compared with the scheme of only adopting Al5TiB, the crystal particle size of obtained aluminum alloy is reduced, and distribution is relatively uniform. Under the same thermal deformation condition, the cube texture strength in the 3003 aluminum alloy treated according to the technical scheme is maximum, deep drawing deformation is facilitated, the product rejection rate caused by the earing rate is reduced, production cost is reduced, and enterprise benefitsare improved.

Description

technical field [0001] The invention relates to the field of thermal processing of nonferrous alloys, in particular to a 3003 aluminum alloy plate and a pretreatment process thereof. Background technique [0002] 3003 aluminum alloy is an AL-Mn series alloy, which is the most widely used anti-rust aluminum. The strength of this alloy is not high (slightly higher than industrial pure aluminum), and it cannot be strengthened by heat treatment. Therefore, cold working method is used to improve its mechanical properties. Properties: High plasticity in the annealed state, good plasticity in semi-cold work hardening, low plasticity in cold work hardening, good corrosion resistance, good weldability, and poor machinability. [0003] When 3003 aluminum alloy is used for deep drawing to prepare containers, there are two main problems in the production process: the first problem is that there are many defects in the material itself, such as inclusions, pores and micro cracks, etc., wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C1/06C22C21/00C22F1/04
CPCC22C1/026C22C1/06C22C21/00C22F1/04
Inventor 陈贵清傅高升魏天云王军德
Owner FUJIAN CHUANZHENG COMM COLLEGE
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