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Aluminum alloy light truck frame and preparation method thereof

An aluminum alloy and light truck technology, applied in bumpers, vehicle safety arrangements, transportation and packaging, etc., can solve the problems of cars drilling into the lower part of trucks, poor corrosion resistance, and crystal softening, so as to avoid alloy softening and reduce Rear collision damage, the effect of strengthening grains

Active Publication Date: 2021-06-29
福建祥鑫股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the corrosion resistance of the existing high-strength aluminum alloy materials is not good, and the prepared automobile frame is easily corroded when exposed to various environments for a long time. In addition, the crystal phase recrystallization will be caused by long-time casting at high temperature during the preparation of the existing aluminum alloy. , recrystallization will lead to crystallization softening; the existing frame also needs to reduce the impact force of the driving wheel on the frame during use to achieve the effect of shock absorption; the existing truck frame is relatively high, and the high frame will cause the car Cars can go under trucks, causing more serious injuries

Method used

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  • Aluminum alloy light truck frame and preparation method thereof
  • Aluminum alloy light truck frame and preparation method thereof
  • Aluminum alloy light truck frame and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]Embodiment 1 introduces an aluminum alloy light truck frame. A shock absorbing plate 5 is added between the tire mounting seat 4 and the longitudinal beam 1, which can reduce the up and down bumps caused by uneven roads during driving; 7 and reinforcement teeth 3 8, through the interlocking of reinforcement teeth 1 6, reinforcement teeth 2 7 and reinforcement teeth 3 8, the interlocking force in the horizontal direction between the tire mounting seat 4, the longitudinal beam 1 and the shock absorbing plate 5 is increased, and the reinforcement teeth 1 6. Reinforcement tooth 2 7 and reinforcement tooth 3 8 interlock with each other, which can improve the integrity of shock absorbing plate 5, longitudinal beam 1 and tire mounting seat 4, and reduce the occurrence of tire mounting seat 4 and longitudinal beam 1 under the action of the driving wheel. The impact on the bolts caused by relative movement; through the flexible rubber pad 14 fixedly connected to the bearing 11, th...

Embodiment 2

[0042] Embodiment 2 is an improvement on the basis of Embodiment 1. The main improvement is reflected in the addition of an anti-rear-collision mechanism 13, in which the support horizontal plate 1302 can prevent greater casualties caused by the rear-end collision of a car and drilling into the bottom of the truck; A buffer frame 1304 and a buffer spring 1305 are matched to the support horizontal plate 1302, which can reduce the maximum impact force at the moment of a car rear-end collision and reduce rear-end injuries; The buffer frame 1304 will not break away from the support horizontal plate 1302 during the reset process after being compressed. By setting the balance column 16, the buffer frame 1304 can play a guiding role in the compression and reset process, and by setting the ball seat 17 and the ball 18, it can be reduced. Buffer the friction force between the frame 1304 and the balance column 16 during compression and reset. The specific improvements are as follows:

...

Embodiment 3

[0046] Embodiment 3 is based on Embodiment 2 to further illustrate the preparation materials and heat treatment process of the vehicle frame. details as follows.

[0047] The girder is prepared from the following components by mass: 0.001% silicon, 0.01% zirconium, 0.001% iron, 5.5% zinc, 0.8% magnesium, 0.001% manganese, 1.2% copper, 0.05% nickel and 0.08% lanthanum, the rest is metallic aluminum.

[0048] The preparation method comprises the following steps:

[0049] Step 1, solid solution the alloy at 450°C for 120min, then calcined at 470°C for 30min, and then keep it at 440°C for 20min;

[0050] Step 2, quenching the alloy obtained in step 1 with water, after quenching, natural aging for 10 hours;

[0051] Step 3. The alloy obtained in Step 2 was left to stand at 130° C. for 12 hours.

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Abstract

The invention provides an aluminum alloy light truck frame and a preparation method thereof, belonging to the technical field of alloy production for automobiles, including a longitudinal beam, a beam one, a beam two, a tire mounting seat and an anti-rear collision mechanism; Melting for 120 minutes, then calcining at 470-490°C for 30 minutes, and then preparing at 440-450°C for 20 minutes; the invention can reduce the up and down bumps caused by uneven roads during driving by setting the shock absorber; The mechanism can stop the car and prevent the car from getting into the bottom of the truck after rear-end collision; the present invention can strengthen the crystal grains and further improve the mechanical strength of the aluminum alloy by adding rare earth elements in the raw material components; Time-casting can not only improve the uniformity of crystal phase through high-temperature casting, but also avoid alloy softening caused by recrystallization caused by long-time casting at high temperature.

Description

technical field [0001] The invention belongs to the technical field of alloy production for automobiles, in particular to an aluminum alloy light truck frame and a preparation method thereof. Background technique [0002] The automobile girder not only needs to bear the vertical support force, but also needs to bear the driving force of the drive wheel in the horizontal direction, so the hardness of the material used for the automobile girder is required to be relatively high. In order to improve the service life of the automobile girder, the anti-corrosion performance requirements of the girder are also very high. Existing car beams are prepared by using high-strength aluminum alloy materials as raw materials. The raw materials contain Mg-Al-Cu or Mg-Al-Zn-Cu alloy clusters to enhance the strength of aluminum materials while maintaining the strength of aluminum alloy materials. The light weight feature prepares an automobile chassis that is beneficial to improving economic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D21/02B62D21/15B60R19/02C22C21/10C22F1/053
CPCB60R19/023B60R2019/026B62D21/02B62D21/155B62D29/001C22C21/10C22F1/002C22F1/053
Inventor 张建雷黄铁明黄祯荣冯永平池海涛
Owner 福建祥鑫股份有限公司
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