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Preparation process of al-mg-si alloy sheet for electric vehicle bus conductor

An electric vehicle and preparation process technology, applied in the field of aluminum alloy preparation, can solve the problems such as the inability to guarantee stable and consistent properties such as product strength and electrical conductivity, poor plate shape, inapplicability, etc., and achieve excellent formability, good plate shape, and performance. Good stability and consistency

Active Publication Date: 2020-05-22
广西南南铝加工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] 3. After the aluminum alloy sheet undergoes solution quenching heat treatment, the shape of the plate is poor, and it is necessary to adopt appropriate solution treatment temperature, solution time and straightening process parameters to control
Moreover, the cold rolling + annealing process for the existing cold-drawn wire cannot guarantee the stability and consistency of the strength and electrical conductivity of each batch of products, and is not suitable for the preparation of busbar conductors for electric vehicles

Method used

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  • Preparation process of al-mg-si alloy sheet for electric vehicle bus conductor
  • Preparation process of al-mg-si alloy sheet for electric vehicle bus conductor
  • Preparation process of al-mg-si alloy sheet for electric vehicle bus conductor

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Experimental program
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Effect test

Embodiment 1

[0051] Please refer to figure 1 , preferred embodiment 1 of the present invention provides a kind of Al-Mg-Si alloy thin plate preparation process for electric vehicle bus conductor, comprises the following steps:

[0052] 1) Ingredients and smelting:

[0053] Ingredients are formulated in the following percentages:

[0054] Si: 0.60%,

[0055] Fe: 0.35%,

[0056] Cu: 0.03%,

[0057] Mn: 0.045%,

[0058] Mg: 0.75%,

[0059] Cr: 0.02%,

[0060] Zn: 0.04%,

[0061] Ti: 0.02%,

[0062] Ni: 0.02%,

[0063] B: 0.01%,

[0064] Ag: 0.005%,

[0065] Others are Al and some unavoidable impurity elements;

[0066] Calculate the amount of aluminum ingots for remelting, return material and each intermediate alloy according to the above alloy composition, put them into a 55T melting furnace in a certain order, the melting temperature is 740 ° C, and turn on the electromagnetic stirrer to stir after melting;

[0067] 2) heat preservation, refining, standing still:

[0068] Firs...

Embodiment 2

[0090] Please refer to figure 1 , preferred embodiment 1 of the present invention provides a kind of Al-Mg-Si alloy thin plate preparation process for electric vehicle bus conductor, comprises the following steps:

[0091] 1) Ingredients and smelting:

[0092] Ingredients are formulated in the following percentages:

[0093] Si: 0.42%,

[0094] Fe: 0.06%,

[0095] Cu: 0.002%,

[0096] Mn: 0.006%,

[0097] Mg: 0.49%,

[0098] Cr: 0.005%,

[0099] Zn: 0.025%,

[0100] Ti: 0.0062%,

[0101] Ni: 0.002%,

[0102] B: 0.01%,

[0103] Ag: 0.005%,

[0104] Others are Al and some unavoidable impurity elements;

[0105] According to the above alloy composition, calculate the amount of aluminum ingots for remelting, return materials and each intermediate alloy, put them into a 55T melting furnace in a certain order, and the melting temperature is 750 ° C. After melting, turn on the electromagnetic stirrer to stir;

[0106] 2) heat preservation, refining, standing still:

[0...

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Abstract

The invention discloses a preparation technology of Al-Mg-Si alloy sheets for an electric car busbar conductor. Through the technological steps of material preparing, smelting, heat preservation, refining, still standing, casting, soaking, saw cutting, face milling, preheating, hot rolling, solid solution, quenching, bending straightening, aging treatment and the like, the Al-Mg-Si alloy sheets which are high in strength, excellent in forming property, good in bending performance, high in conductivity, good in product shape of all batches, stable in performance and good in consistency are obtained.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy preparation, in particular to an Al-Mg-Si alloy thin plate preparation process for electric vehicle bus conductors. Background technique [0002] Metal materials with high electrical conductivity include silver, copper, gold, aluminum, etc., and copper and aluminum are commonly used. New energy electric vehicles often use copper as the busbar conductor, but the cost of copper is relatively high and the weight is heavy. If you compare aluminum and copper of the same quality, the carrying capacity of aluminum is much higher than that of copper. Although aluminum is inferior to copper in terms of electrical conductivity and tensile strength, due to the pressure of new energy vehicles to reduce weight and reduce costs, auto companies represented by Tesla and BYD are in urgent need of high electrical conductivity, A thin plate (0.2-3.5 mm thickness) with high strength and excellent formability...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22C21/02C22C21/08B21C37/02C22F1/05
CPCB21C37/02C22C1/026C22C21/02C22C21/08C22F1/05
Inventor 黄奎邓松云任月路黄程毅许泽兵邓桂英
Owner 广西南南铝加工有限公司