A kind of 1100‑h24 aluminum alloy plate for car door

An aluminum alloy plate and aluminum alloy technology, which is applied in the field of aluminum alloy, can solve the problems of large amount of internal slag inclusion, unstable processing and forming performance of stamping products, and low yield rate, so as to improve product performance, improve bake hardening performance, The effect of improving plasticity

Active Publication Date: 2017-09-22
HENAN MINGTAI AL INDUSTRIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a 1100-H24 aluminum alloy plate for a passenger car door and a production method thereof. The passenger car door produced by using the aluminum alloy plate has better tensile strength, yield strength, elongation and formability, and solves the problem There are problems in the production of aluminum alloy passenger car door aluminum plates in the technology that the yield of finished products is low due to the large amount of internal slag inclusions and uneven structure, and the processing and forming performance of stamping products is unstable, which improves the production efficiency of online stamping

Method used

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  • A kind of 1100‑h24 aluminum alloy plate for car door
  • A kind of 1100‑h24 aluminum alloy plate for car door
  • A kind of 1100‑h24 aluminum alloy plate for car door

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Effect test

Embodiment 1

[0033] A 1100-H24 aluminum alloy plate for a car door, the chemical composition mass percentage of the aluminum alloy plate is: Si0.350%, Fe 0.477%, Cu 0.176%, Mn 0.007%, Mg 0.003%, Cr 0.002%, Zn 0.004% , Ti 0.020%, the rest is Al.

[0034] The production method of the 1100-H24 aluminum alloy plate for the car door comprises the following steps:

[0035] (1) Smelting and casting: Add aluminum ingots into the melting furnace, obtain aluminum ingot solution at a melting temperature of 720~750°C, and a refining temperature of 720~750°C, then add Si, Fe, and Cu to obtain an aluminum alloy plate that meets the chemical requirements of the aluminum alloy sheet. The composition of the aluminum alloy solution, casting an aluminum alloy ingot with a thickness of 600mm and a width of 1350mm from the aluminum alloy solution at a casting temperature of 715~730°C and a casting speed of 45~50mm / min;

[0036] (2) Saw cutting and face milling: Use a milling machine to mill the large and small ...

Embodiment 2

[0050] A 1100-H24 aluminum alloy plate for a car door, the chemical composition mass percentage of the aluminum alloy plate is: Si0.366%, Fe 0.450%, Cu 0.176%, Mn 0.0058%, Mg 0.0018%, Cr 0.0013%, Zn 0.011% , Ti0.024%, the rest is Al.

[0051] The production method of the 1100-H24 aluminum alloy plate for the car door comprises the following steps:

[0052] (1) Smelting and casting: Add aluminum ingots into the melting furnace, obtain aluminum ingot solution at a melting temperature of 720~750°C, and a refining temperature of 720~750°C, then add Si, Fe, and Cu to obtain an aluminum alloy plate that meets the chemical requirements of the aluminum alloy sheet. The composition of the aluminum alloy solution, casting an aluminum alloy ingot with a thickness of 600mm and a width of 1350mm from the aluminum alloy solution at a casting temperature of 715~730°C and a casting speed of 45~50mm / min;

[0053] (2) Sawing and face milling: using a milling machine to mill the large and small...

Embodiment 3

[0067] A 1100-H24 aluminum alloy plate for a car door, the chemical composition mass percentage of the aluminum alloy plate is: Si0.398%, Fe 0.50%, Cu 0.15%, Mn 0.0056%, Mg 0.0018%, Cr 0.0013%, Zn 0.011% , Ti0.021%, the rest is Al.

[0068] The production method of the aluminum alloy plate for the 1100-H24 car door comprises the following steps:

[0069] (1) Smelting and casting: Add aluminum ingots into the melting furnace, obtain aluminum ingot solution at a melting temperature of 720~750°C, and a refining temperature of 720~750°C, then add Si, Fe, and Cu to obtain an aluminum alloy plate that meets the chemical requirements of the aluminum alloy sheet. The composition of the aluminum alloy solution, casting an aluminum alloy ingot with a thickness of 600mm and a width of 1350mm from the aluminum alloy solution at a casting temperature of 715~730°C and a casting speed of 45~50mm / min;

[0070] (2) Sawing and face milling: using a milling machine to mill the large and small f...

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Abstract

The invention provides an 1100-H24 aluminum alloy plate strip used for a car door and a preparation method thereof. The preparation method comprises the following steps of casting, sawing, milling, homogenization heat treatment, hot rolling, blank annealing, cold rolling, cleaning and finished product annealing. The aluminum alloy plate strip comprises, by mass, 0.35-0.40% of Si, 0.45- 0.50% of Fe, 0.15- 0.20% of Cu, less than 0.05% of Mn, less than 0.05% of Mg, less than 0.05% of Cr, less than 0.05% of Zn, 0.02-0.025% of Ti, and the balance aluminum. According to the production method, the good stability of the mechanical property of the 1100-H24 aluminum alloy plate strip used for the car door can be ensured, the processing formability of the 1100-H24 aluminum alloy plate strip is also greatly improved in the punching process, the rate of finished products is high, and the production efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to a 1100-H24 aluminum alloy plate for passenger car doors and a preparation method thereof. Background technique [0002] With the extensive use of automobiles, in order to reduce weight, improve anti-corrosion performance and processing performance, the amount of aluminum sheets used in automobiles in the automobile industry is gradually increasing. Automobile lightweight is an important trend in the development of automobiles. By using lightweight materials instead of traditional steel materials, the weight of automobiles can be reduced. However, automobile safety regulations require us to improve the active safety and passive safety of automobiles while reducing the weight. safety. As an important lightweight material, aluminum alloy has a density of 1 / 3 of that of steel. Typical aluminum alloy parts can replace steel parts with a weight reduction effect of 30~40% for t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22F1/04B23P15/00
CPCB23P15/00C22C21/00C22F1/04
Inventor 李国锋
Owner HENAN MINGTAI AL INDUSTRIAL CO LTD
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