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Machining technology of battery pack magnesium alloy tray for new energy vehicle

A new energy vehicle and processing technology, which is applied in the field of processing technology of magnesium alloy trays for battery packs used in new energy vehicles, can solve problems such as unstable quality, restricting the development of magnesium material preparation, and low efficiency

Active Publication Date: 2018-04-10
湖南金镁科新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since magnesium has a close-packed hexagonal crystal structure, the c / a axis ratio is 1.623, and there is only one slip system at room temperature, so the ductility is low and molding is difficult
The traditional magnesium alloy plastic deformation process is copied from the copper and aluminum extrusion, forging, and bending processes of non-ferrous metals. It is not a special equipment and special process for magnesium alloy profiles, pipe bending, and welding processing, so the efficiency is low. Small size, low yield, high cost, and unstable quality restrict the development of magnesium material preparation

Method used

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  • Machining technology of battery pack magnesium alloy tray for new energy vehicle
  • Machining technology of battery pack magnesium alloy tray for new energy vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Processing technology of magnesium alloy tray for battery packs used in new energy vehicles, including:

[0047] Sand filling step: After setting the size of magnesium alloy profiles and pipes, the material is cut, and then poured with magnesia. The mesh number of magnesia is 60-100 mesh. After filling, oscillate. The filling speed is 3L / min, and the oscillation frequency is 8 times. / Second;

[0048] Bending steps: Put the magnesium alloy profiles and pipes into the heating furnace to heat, the heating temperature is 320°C, carry out pinch displacement detection, and then perform primary bending and secondary bending on the magnesium alloy profiles and tubes, primary bending and secondary bending The bending moment torque is 2000Nm, and then the size inspection and correction are carried out;

[0049] Welding steps: process the welded end section of magnesium alloy profiles and pipes on a milling machine, after feeding and feeding, clamp and position the welding stati...

Embodiment 2

[0056] Processing technology of magnesium alloy tray for battery packs used in new energy vehicles, including:

[0057] Sand filling step: after setting the size of the magnesium alloy profile and pipe, the material is cut, and then the magnesia is poured. The mesh number of the magnesia is 60 mesh. After filling, it oscillates. The filling speed is 4L / min, and the oscillation frequency is 6 times / second. ;

[0058] Bending steps: Put the magnesium alloy profiles and pipes into the heating furnace to heat, the heating temperature is 300°C, carry out pinch displacement detection, and then perform primary bending and secondary bending on the magnesium alloy profiles and pipes, primary bending and secondary bending The bending moment and torque of bending are all 1800Nm, and then the dimensional inspection and correction are carried out;

[0059] Welding steps: process the welding end section of magnesium alloy profiles and pipes on a milling machine, after feeding and feeding, ...

Embodiment 3

[0067] Processing technology of magnesium alloy tray for battery packs used in new energy vehicles, including:

[0068] Sand filling step: after setting the size of the profile and pipe, the material is cut, and then the magnesia is poured. The mesh number of the magnesia is 100 mesh. After filling, it oscillates. The filling speed is 4.5L / min, and the oscillation frequency is 10 times / s. Obtain magnesium alloy profiles and pipes;

[0069] Bending steps: Put the magnesium alloy profiles and pipes into the heating furnace to heat, the heating temperature is 350°C, carry out pinch displacement detection, and then perform primary bending and secondary bending on the magnesium alloy profiles and tubes, primary bending and secondary bending The bending moment torque of bending is 3000Nm, and then the dimensional inspection and correction are carried out;

[0070] Welding steps: process the welding end section of magnesium alloy profiles and pipes on a milling machine. After feedin...

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Abstract

The invention discloses a machining technology of a battery pack magnesium alloy tray for a new energy vehicle. The machining technology comprises the steps of sand filling, bending, welding, tray machining and surface anticorrosion. According to the machining technology of the battery pack magnesium alloy tray for the new energy vehicle, large-scale and industrialized production can be realized through the machining technology, the high-quality magnesium alloy vehicle battery pack tray is obtained, and a new development direction is developed for magnesium alloy deep-machining application; and at the same time, with the development of new energy vehicles, energy saving and emission reduction are the trend of times development and are also the direction which is encouraged and supported bya country, the future vehicle is an intelligent networking and lightweight times, and especially with increasing of the amount of vehicle magnesium alloy parts, the production cost is low, and powerful support is formed for magnesium alloy deep machining application.

Description

technical field [0001] The invention relates to a deep processing process of magnesium alloy profiles and pipes, in particular to a processing process of magnesium alloy trays for battery packs of new energy vehicles. Background technique [0002] Compared with plastics, magnesium alloy materials have light weight, high specific strength, good vibration damping, good thermal fatigue performance, not easy to age, good thermal conductivity, strong electromagnetic shielding ability, good shock absorption, especially easy to recycle, etc. Advantages, it is a new generation of high-performance structural materials that replace steel, aluminum alloys and engineering plastics. Magnesium alloy is an ideal material for the casing of products such as transportation, electronic information, communication, computer, audio-visual equipment, portable tools, motors, forestry, and textiles. Developed countries attach great importance to the development and application of magnesium alloys, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00C25D11/30C25D13/02
CPCB23P15/00C25D11/30C25D13/02
Inventor 陈晓阳段江峰
Owner 湖南金镁科新材料有限公司
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