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Preparation method of high-performance aluminum alloy radiator plate

An aluminum alloy sheet and aluminum alloy technology, which is applied in the field of aluminum alloy sheet manufacturing, can solve the problems of large plate sawing deformation, inconsistent hardness, poor uniform performance, etc., and achieve the effects of reducing internal cracks, uniform structure and improving strength of casting billets.

Pending Publication Date: 2021-08-20
湖南恒佳新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The aluminum alloy plates in the prior art have low strength, poor uniformity, inconsistent hardness, and large deformation when sawing the plate; the fins produced are prone to distortion, uneven thickness, unevenness, and uneven heat dissipation.

Method used

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  • Preparation method of high-performance aluminum alloy radiator plate
  • Preparation method of high-performance aluminum alloy radiator plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This embodiment provides a method for preparing a high-performance aluminum alloy radiator plate. The alloy composition of the aluminum alloy plate is composed of the following components according to mass percentage: Si: 0.06%, Cu: 0.17%, Fe: 0.12%, Ti: 0.015 %, the balance is Al and unavoidable impurities, wherein Fe:Si mass ratio=2. By controlling the iron-silicon ratio of the main impurity component of the melt to not less than 1.9, the internal cracks of the slab are reduced, the processing deformation rate of the finished product is reduced, and the copper content is controlled to improve the mechanical properties of the aluminum alloy sheet.

[0036] The preparation method of aluminum alloy radiator plate, the steps are as follows:

[0037] (1) Smelting and casting: batching according to the designed alloy composition.

[0038] (2) Cleaning of raw materials: Clean and dry the surface of each raw material to ensure that the raw materials are free of moisture and ...

Embodiment 2

[0049] This embodiment provides a method for preparing a high-performance aluminum alloy radiator plate. The alloy composition of the aluminum alloy plate is composed of the following components according to the mass percentage: Si: 0.07%, Cu: 0.12%, Fe: 0.15%, Ti: 0.015 %, the balance is Al and unavoidable impurities, wherein Fe:Si mass ratio=2.14.

[0050] The preparation method of aluminum alloy radiator plate, the steps are as follows:

[0051] (1) Smelting and casting: batching according to the designed alloy composition.

[0052] (2) Cleaning of raw materials: Clean and dry the surface of each raw material to ensure that the raw materials are free of moisture and debris; when drying, heat at 120°C at a rate of 10°C / min for 2 hours.

[0053] (3) Smelting and casting the aluminum alloy after batching, including:

[0054] When smelting, first raise the speed of 8°C / min to 740°C to make it completely melted, then put in the preheated aluminum-copper alloy, and then lower i...

Embodiment 3

[0063] This embodiment provides a method for preparing a high-performance aluminum alloy radiator plate. The alloy composition of the aluminum alloy plate is composed of the following components according to the mass percentage: Si: 0.065%, Cu: 0.12%, Fe: 0.13%, Ti: 0.015 %, the balance is Al and unavoidable impurities, wherein Fe:Si mass ratio=2.

[0064] The preparation method of aluminum alloy radiator plate, the steps are as follows:

[0065] (1) Smelting and casting: batching according to the designed alloy composition.

[0066] (2) Cleaning of raw materials: Clean and dry the surface of each raw material to ensure that the raw materials are free of moisture and debris; when drying, heat at 120°C at a rate of 10°C / min for 2 hours.

[0067] (3) Smelting and casting the aluminum alloy after batching, including:

[0068] When smelting, first raise the speed of 10°C / min to 740°C to make it completely melted, then put in the preheated aluminum-copper alloy, and then lower it...

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Abstract

The invention relates to a preparation method of a high-performance aluminum alloy radiator plate, the preparation method comprises the following steps that the iron-silicon ratio of main impurity components of a melt is controlled to be not less than 1.9 so as to reduce internal cracks of a casting blank and reduce the machining deformation rate of a finished product, an aluminum-titanium alloy and a grain refiner are added into a smelting furnace and an on-line launder, the content of the titanium element in an aluminum alloy cast ingot is kept within a reasonable range, the grain size of the prepared cast ingot is smaller than or equal to grade 1, so that the mechanical property of the cooling fin aluminum alloy plate is improved, the structure is uniform, and grains are refined. Meanwhile, a small amount of copper element is added in a matched mode, the finish rolling temperature of the finished product is controlled to be 330-360 DEG C, so that crystal grains in the aluminum alloy plate are completely recrystallized crystal grains, the strength of the aluminum alloy radiator plate is improved, meanwhile, anisotropy of the internal mechanical property of the aluminum alloy plate is eliminated, internal stress is reduced, and finally, the high-performance aluminum alloy radiator plate is obtained.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy plate manufacturing, in particular to a method for preparing a high-performance aluminum alloy radiator plate. Background technique [0002] The production process of the existing aluminum alloy radiator plate is: casting large flat ingot (melting with aluminum ingot or aluminum water, batching, refining, degassing and slag removal) → heating the flat ingot to 480-550 °C → upper roller table Enter the hot rolling mill to roll into aluminum alloy plates of various thicknesses → smooth and straighten → cut to length and precision sawing → heat treatment → finished product inspection, packaging and storage. Among them, the heat dissipation aluminum alloy formula disclosed in the prior art is composed of: Si: 0.2-0.6%; Mg: 0.6-1.5%; Cu: 0.8-1.5%; Mn: 0.10-0.2%; Impurities. [0003] The aluminum alloy plates in the prior art have low strength and poor uniformity, inconsistent hardness, and lar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/03C22C21/00C22C21/14C22F1/04C22F1/057
CPCC22C1/026C22C1/03C22C21/00C22C21/14C22F1/04C22F1/057
Inventor 陈智斌林建华付平蒋会阳
Owner 湖南恒佳新材料科技有限公司
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