Aluminum alloy pressure-cast door plank and preparation method thereof

A technology of aluminum alloy and door panels, which is applied in the field of alloy material processing, can solve problems such as inability to perform solid solution heat treatment or welding forming, inability to machine, insufficient mechanical strength, etc., to optimize surface finish, improve die-casting performance, and not easily oxidize and discolor Effect

Active Publication Date: 2015-05-06
宋守宝
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the aluminum and magnesium alloy castings produced by die-casting have many internal pores, and cannot be subjected to solution heat treatment or welding, nor can they be subjected to excessive machining
[0004] At present, alu

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An aluminum alloy die-casting door panel, which is prepared from the following raw materials in weight percentage: 4.1% magnesium, 1.8% manganese, 0.8% zinc, 0.6% copper, 0.3% nickel, 0.1% white graphite, 0.04% cerium, 0.04% yttrium , 0.02% samarium, 0.01% silicon dioxide, and the rest is aluminum;

[0024] The particle diameter of described white graphite and silicon dioxide is all controlled at 300 orders;

[0025] The manufacturing method of the aluminum alloy die-casting door panel is carried out according to the following steps:

[0026] 1) Weigh each raw material according to weight percentage for later use;

[0027] 2) Take aluminum, under the protection of argon gas, melt the aluminum and raise the temperature to 700°C to obtain aluminum melt;

[0028] 3) Take magnesium, manganese, zinc, copper, nickel, cerium, yttrium, and samarium, mix them, and mix them in a high-energy ball mill tank for 10 hours to obtain mixed metal powders, then add white graphite and s...

Embodiment 2

[0032] An aluminum alloy die-casting door panel, which is prepared from the following raw materials in weight percentage: 4.3% magnesium, 2.1% manganese, 0.9% zinc, 0.7% copper, 0.4% nickel, 0.2% white graphite, 0.05% cerium, 0.05% yttrium , 0.03% samarium, 0.02% silicon dioxide, and the rest is aluminum;

[0033] The particle diameter of described white graphite and silicon dioxide is all controlled at 400 orders;

[0034] The manufacturing method of the aluminum alloy die-casting door panel is carried out according to the following steps:

[0035] 1) Weigh each raw material according to weight percentage for later use;

[0036] 2) Take aluminum, under the protection of argon gas, melt the aluminum and raise the temperature to 700°C to obtain aluminum melt;

[0037] 3) Take magnesium, manganese, zinc, copper, nickel, cerium, yttrium, and samarium, mix them, and mix them in a high-energy ball mill tank for 12 hours to obtain mixed metal powders, then add white graphite and s...

Embodiment 3

[0041] One, the performance parameter test of the aluminum alloy die-casting door panel that embodiment 1 of the present invention and embodiment 2 prepare, specifically see table 1:

[0042] Table 1

[0043] group Tensile strengthMpa Yield strength Mpa Elongation% Hardness HB Example 1 336 229 10.3 82 Example 2 330 232 10.6 80 ADC12 control 331 169 2.8 81

[0044] Two, the corrosion resistance test of the aluminum alloy die-casting door panel that the embodiment of the present invention 1 and embodiment 2 prepare:

[0045] According to GB10124-1988 metal material laboratory uniform corrosion full immersion test method, put the sample prepared in the above embodiment obliquely in the 3.5% NaCl solution, take it out after 4 days and use CrO3+AgNO3+Ba(NO3)2+distilled water to remove the test method The corrosion products on the sample surface were cleaned with acetone and absolute alcohol, and the corrosion rate (mm / a) was measure...

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Abstract

The invention belongs to the field of machining of alloy materials and discloses an aluminum alloy pressure-cast door plank. The aluminum alloy pressure-cast door plank is prepared from the following raw materials in percentage by weight: 4.1%-4.3% of magnesium, 1.8%-2.1% of manganese, 0.8%-0.9% of zinc, 0.6%-0.7% of copper, 0.3%-0.4% of nickel, 0.1%-0.2% of white graphite, 0.04-0.05% of cerium, 0.04%-0.05% of yttrium, 0.02%-0.03% of samarium, 0.01%-0.02% of silicon dioxide and the balance of aluminum. The aluminum alloy pressure-cast door plank is high in mechanical strength, can resist corrosion and is unlikely to be oxidized and change color; the preparation method is simple, feasible and suitable for large-scale production.

Description

technical field [0001] The invention belongs to the field of alloy material processing, and in particular relates to an aluminum alloy die-casting door panel and a manufacturing method thereof. Background technique [0002] Aluminum alloy door panels refer to doors made of aluminum alloy extruded profiles as frames, stiles, and fan materials. They are called aluminum alloy doors, or aluminum doors for short. Including aluminum-wood composite doors, aluminum-plastic composite doors for short, which use aluminum alloy as the base material of the force-bearing rods (the rods that bear and transmit their own weight and load) and wood and plastic composite doors. Among the vast majority of existing buildings in our country, more than 90% are high-energy-consuming buildings. In high-energy-consuming buildings, doors and windows account for nearly half of the energy consumption. As analyzed by industry insiders, the key to energy saving in buildings is the energy saving of door...

Claims

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Application Information

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IPC IPC(8): C22C21/08C22C1/02C22C1/10B22D17/00
Inventor 宋振宇宋丽萍
Owner 宋守宝
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