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A kind of sheet material for thermal management of electric vehicle and preparation method thereof

An electric vehicle and thermal management technology, applied in heat exchange equipment, lighting and heating equipment, metal rolling, etc., can solve the problem of high cost, achieve the effect of preventing erosion, avoiding air bubbles, and improving the yield of materials

Active Publication Date: 2022-08-09
YINBANG CLAD MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, the more popular method is to make a three-layer composite material. In order to meet the formability before brazing, the grains of the core material are relatively small, and the two sides are covered with a layer of alloy with relatively large grains on the surface. The large grains on the surface reduce the time required for brazing. Solder erodes the channel and reduces creep defects, but this method is expensive due to the need to use composite materials

Method used

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  • A kind of sheet material for thermal management of electric vehicle and preparation method thereof
  • A kind of sheet material for thermal management of electric vehicle and preparation method thereof
  • A kind of sheet material for thermal management of electric vehicle and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Select the O-state 3003 aluminum alloy coil with the production batch number 20406351: the alloy Si: 0.6wt%, Fe: 0.7wt%, Cu: 0.05wt%, Mn: 1.5wt%, the rest are Al and less than 0.15wt% Impurities are inevitable.

[0046] 1) Alloy smelting: smelting according to the ratio of 3003 elements, melting through pure aluminum ingots, adjusting components, electromagnetic stirring, slag removal, degassing, and refining;

[0047] 2) Continuous casting and rolling: melt casting and rolling are carried out at the same time, and continuous casting and rolling are carried out to obtain cast-rolled coils of a certain specification.

[0048] 3) Cold rolling: the cast-rolled coil is cold-rolled to a thickness of 1.11mm in multiple passes;

[0049] 4) Intermediate annealing: The cast-rolled coil is subjected to complete recrystallization annealing in a heating furnace, the annealing temperature is 500°C, and the holding time is 2h to obtain a fully recrystallized O state coil;

[0050] 5)...

Embodiment 2

[0057] The production batch number is 20406361O state 3003MOD aluminum alloy coil: the alloy Si: 0.6wt%, Fe: 0.7wt%, Cu: 0.5wt%, Mn: 1.5wt%, and the rest are Al and less than 0.15wt% inevitable impurities.

[0058] 1) Alloy smelting: smelting according to the ratio of 3003MOD elements, melting through pure aluminum ingots, adjusting components, electromagnetic stirring, slag removal, degassing, and refining;

[0059] 2) Continuous casting and rolling: melt casting and rolling are carried out at the same time, and continuous casting and rolling are carried out to obtain cast-rolled coils of a certain specification.

[0060] 3) Cold rolling: the cast-rolled coil is cold-rolled to a thickness of 5 mm for multiple passes;

[0061] 4) Intermediate annealing: the cast-rolled coil is fully recrystallized and annealed in a heating furnace, the annealing temperature is 340°C, and the holding time is 10h to obtain a fully recrystallized O-state coil;

[0062] 5) Take the O state sampl...

Embodiment 3

[0066] The O-state 3003MOD aluminum alloy coil with production batch number 204063773 was selected: the alloy Si: 0.6wt%, Fe: 0.7wt%, Cu: 0.3wt%, Mn: 1.0wt%, Mg: 0.3wt% and the rest are Al and Less than 0.15 wt% of unavoidable impurities.

[0067] 1) Alloy smelting: smelting according to the ratio of 3003MOD elements, melting through pure aluminum ingots, adjusting components, electromagnetic stirring, slag removal, degassing, and refining;

[0068] 2) Continuous casting and rolling: melt casting and rolling are carried out at the same time, and continuous casting and rolling are carried out to obtain cast-rolled coils of a certain specification.

[0069] 3) Cold rolling: the cast-rolled coil is cold-rolled to a thickness of 3.53mm for multiple passes;

[0070] 4) Intermediate annealing: the cast-rolled coil is fully recrystallized and annealed in a heating furnace, the annealing temperature is 400°C, and the holding time is 5h to obtain a fully recrystallized O-state coil; ...

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Abstract

This application disclosed a plate of electric vehicle thermal management plates and its preparation methods.The board is a non -composite material; where the surface grain size of the plate is greater than the central grain size.Using the characteristics of large solution solution on the surface of cast rolling rolls, and the use of the principle of critical deformation of metal materials to provide a plate material with a surface grain size of the surface of the surface.This material can not only meet the molding before welding, but also prevent erosion during the welding process.

Description

technical field [0001] The application relates to the technical field of thermal management of electric vehicles, in particular to a sheet material for thermal management of electric vehicles and a preparation method thereof. Background technique [0002] Aluminum alloy has low density, high thermal conductivity, good mechanical properties and corrosion resistance, etc. Since 1990, it has gradually replaced copper as the main material of heat exchangers. At present, the aluminization rate of automobile heat exchangers has reached more than 90%, and the automobile industry has become the largest market for aluminum alloy composite materials; [0003] It is calculated that every 1Kg of weight saved in the car manufacturing process can reduce 20Kg of CO2 emissions. Therefore, driven by energy saving and emission reduction, the application of aluminum alloys in the automobile industry has developed rapidly in the past few decades. The aluminum alloy used in each automobile has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C1/02C22F1/04C21D8/02C21D1/26B21B1/46B21B3/00F28F21/08
CPCC22C21/00C22C1/026C22F1/04C21D8/0273C21D8/0236C21D1/26B21B1/463B21B3/00F28F21/084B21B2003/001
Inventor 刘二磊曹琦丁峰赵娜严安张斌孙磊周德敬
Owner YINBANG CLAD MATERIAL