A kind of high-strength aluminum plate for truck fuel tank and production method thereof
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A technology for trucks and production methods, applied in furnaces, heat treatment equipment, manufacturing tools, etc., can solve problems such as poor corrosion resistance of fuel tanks, cracking of fuel tanks by stamping, poor corrosion resistance, etc.
Active Publication Date: 2022-08-02
河南泰鸿新材料有限公司
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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
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Embodiment 1
[0036] The high-strength aluminum plate for the fuel tank of the truck of the present invention is expressed in terms of 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%, the balance being Al.
Embodiment 2
[0038] The production method of the high-strength aluminum plate for the fuel tank of a truck according to the embodiment 1 of the present invention, the detailed steps of the production method are as follows:
[0039] a. Smelting: use pure aluminum ingots, pure magnesium ingots and pure zinc ingots as raw materials for batch smelting. During the smelting process, the smelting temperature is controlled to be 735-750 °C, and the smelting holding time is 25 minutes; the intermediate alloys Al-5Ta and Al are added during the smelting process. -20Si, Al-5Fe, Al-50Cu, Al-20Mn, Al-5Cr and Al-5Ti-B are batched and smelted, and the batching temperature is 740-750 °C; Alloy element composition of high-strength aluminum sheet for truck fuel tank;
[0040] b, refining: refining the alloy liquid obtained in step a, the refining temperature is controlled to be 730~735 ℃ in the refining process, and the refining time is 40min;
[0041] Ar and Cl are used in the refining process 2 The mixe...
Embodiment 3
[0060] The high-strength aluminum plate for the fuel tank of the truck of the present invention is expressed in terms of mass percentage, and its alloying element composition is: Mg 4.504%, Ta 0.211%, Si 0.139%, Fe 0.288%, Cu 0.041%, Mn 0.518%, Cr0 .126%, Zn 0.040%, Ti 0.020% and Na 0.0001%, the balance being Al.
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Abstract
The invention discloses a high-strength aluminum plate for a fuel tank of a truck and a production method thereof. In the present invention, pure aluminum ingots, pure magnesium ingots and pure zinc ingots are used as raw materials for smelting, and intermediate alloy ingredients are added for smelting, and the composition of the obtained alloy liquid satisfies the composition of its alloy elements; , hot rough rolling and hot finishing rolling to make aluminum alloy billet coils; the obtained coils are cold-rolled to obtain cold-rolled coils with two thicknesses of 2.5mm and 3.5mm; the obtained coils with a thickness of 2.5mm are sequentially annealed and cleaned. , to obtain an O state finished coil; the obtained cold-rolled coil with a thickness of 3.5 mm is sequentially subjected to intermediate annealing, secondary cold rolling, stabilization treatment and cleaning to obtain an H32 state finished coil. The product prepared by the method has excellent mechanical properties, corrosion resistance and stamping forming properties, and can effectively solve the technical problems of poor corrosion resistance and low elongation of fuel tanks of trucks that lead to stamping and cracking of fuel tanks.
Description
1. Technical field: [0001] The invention relates to a high-strength rolled Al-Mg series aluminum alloy sheet and a preparation method thereof, and particularly relates to a high-strength aluminum sheet for a truck fuel tank and a production method thereof. 2. Background technology: [0002] With the development of the automobile industry, the corrosion problem of iron fuel tanks has become the biggest problem that threatens the service life and quality of fuel tanks. At the same time, with the current emphasis on vehicle lightweighting and the application and development of various new materials, under the premise of ensuring strength and safety in use, the use of new lightweight materials to replace traditional steel materials has become the development trend of the automotive industry. Aluminum alloy has become an ideal material for automobile lightweight due to its high specific strength and specific stiffness, good formability, excellent corrosion resistance and high rec...
Claims
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Application Information
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