High-strength aluminum plate for truck fuel tank and production method therefor

A technology for trucks and production methods, applied in furnaces, heat treatment equipment, manufacturing tools, etc., can solve problems such as stamping and cracking of fuel tanks, poor corrosion resistance, and poor corrosion resistance of fuel tanks.

Active Publication Date: 2021-12-31
河南泰鸿新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: According to the existing problems of poor corrosion resistance and low elongation of the fuel tank of trucks, which lead to stamping cracks of the fuel tank, the present invention provides a high-strength aluminum plate for the fuel tank of trucks and its production method
The product prepared by using the technical scheme of the invention has excellent mechanical properties, corrosion resistance and stamping performance, and can effectively solve the technical problem of stamping cracking of the fuel tank of trucks caused by poor corrosion resistance and low elongation

Method used

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  • High-strength aluminum plate for truck fuel tank and production method therefor
  • High-strength aluminum plate for truck fuel tank and production method therefor
  • High-strength aluminum plate for truck fuel tank and production method therefor

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Effect test

Embodiment 1

[0036] The high-strength aluminum sheet for the truck fuel tank of the present invention is represented by mass percentage, and its alloy element composition is: Mg 4.4%, Ta 0.205%, Si 0.117%, Fe 0.294%, Cu 0.042%, Mn 0.504%, Cr 0.121%, Zn 0.063%, Ti 0.018%, and Na 0.0001%, and the balance is Al.

Embodiment 2

[0038] The production method of the high-strength aluminum sheet for the truck fuel tank described in Embodiment 1 of the present invention, the detailed steps of the production method are as follows:

[0039] a. Melting: Use pure aluminum ingots, pure magnesium ingots and pure zinc ingots as raw materials for batch smelting. During the smelting process, control the smelting temperature to 735-750°C, and the smelting holding time is 25 minutes; add intermediate alloys Al-5Ta and Al during the smelting process -20Si, Al-5Fe, Al-50Cu, Al-20Mn, Al-5Cr and Al-5Ti-B carry out batching smelting, batching temperature is 740~750 ℃; Composition of alloying elements of high-strength aluminum sheets for truck fuel tanks;

[0040] b. Refining: Refining the alloy liquid obtained in step a, controlling the refining temperature to 730-735°C during the refining process, and the refining time is 40 minutes; after the refining is finished, let it stand still for 35 minutes;

[0041] Ar used in...

Embodiment 3

[0060] The high-strength aluminum sheet for the truck fuel tank of the present invention is represented by mass percentage, and its alloy element composition is: Mg 4.504%, Ta 0.211%, Si 0.139%, Fe 0.288%, Cu 0.041%, Mn 0.518%, Cr 0.126%, Zn 0.040%, Ti 0.020%, Na 0.0001%, and the balance is Al.

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Abstract

The invention discloses a high-strength aluminum plate for a truck fuel tank and a production method therefor. Pure aluminum ingots, pure magnesium ingots and pure zinc ingots are used as raw materials to be smelted, intermediate alloy ingredients are added to be smelted, and the components of obtained alloy liquid meet the alloy element composition of the aluminum plate; the obtained alloy liquid is sequentially subjected to refining, casting, surface milling, soaking treatment, hot rough rolling and hot finish rolling, and an aluminum alloy blank coil is prepared; cold rolling is performed on the obtained coil to obtain cold-rolled coil materials with two thicknesses of 2.5 mm and 3.5 mm; sequential annealing and cleaning are performed on the obtained coil material with the thickness of 2.5 mm to obtain an O-state finished coil material; and the obtained cold-rolled coil material with the thickness of 3.5 mm is sequentially subjected to intermediate annealing, secondary cold rolling, stabilizing treatment and cleaning, and an H32-state finished product coil is obtained. The product prepared by the invention has excellent mechanical properties, corrosion resistance and punch forming performance, and can effectively solve the technical problem of punch cracking of the fuel tank caused by poor corrosion resistance and low elongation of the fuel tank of the truck.

Description

1. Technical field: [0001] The invention relates to a high-strength rolled Al-Mg series aluminum alloy plate and a preparation method thereof, and relates to a high-strength aluminum plate for a truck fuel tank and a production method thereof. 2. Background technology: [0002] With the development of the automobile industry, the easy corrosion of iron fuel tanks has become the biggest problem that threatens the service life and quality of fuel tanks. At the same time, the current emphasis on the lightweight of automobiles and the application and development of various new materials, under the premise of ensuring the strength and safety of use, the use of new lightweight materials to replace traditional steel materials has become the development trend of the automobile industry. Aluminum alloy has become an ideal material for automobile lightweight because of its high specific strength and specific stiffness, good formability, excellent corrosion resistance and high recyclin...

Claims

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Application Information

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IPC IPC(8): C22C1/03C22C21/06C22C21/08C22F1/047C21D9/52B23P15/00
CPCC22C1/026C22C21/08C22C21/06C22F1/047C21D9/52C22C1/03B23P15/00
Inventor 李国锋邓艳超李伟坡谭盼马艳非李志阳
Owner 河南泰鸿新材料有限公司
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