Aluminum alloy casting rod for automobile hub and preparation method for aluminum alloy casting rod

A technology for automobile wheels and aluminum alloys, which is applied in the field of aluminum alloy cast rods for automobile wheels and its preparation, which can solve the problems of low mechanical properties and achieve the effects of long service life, light weight and high strength

Inactive Publication Date: 2016-04-20
BAISE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The quality of the aluminum alloy material is a major factor affecting the quality of the wheel hub. A356 aluminum is commonly used in ordinary casting wheels, and the production of aluminum alloy wheels is one-time casting without reprocessing. The internal structure of the metal The structure has not changed, and there is a problem of low mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] An aluminum alloy cast rod for automobile wheels, the mass percentages of the components are: Si1.1%, Mn0.06%, Mg1.3%, B0.6%, Cr0.22%, Fe0.06%, Nd0. 06%, La0.13%, Yb0.06%, the total amount of impurity elements of other metals and non-metals does not exceed 0.5%, and the rest is Al.

[0017] The preparation method of the aluminum alloy casting rod for the above-mentioned automobile wheel hub comprises the following steps:

[0018] (1) Melting: Melt the aluminum raw material, magnesium, silicon components and covering agent in a melting furnace to 700-720°C, then add other alloy components except aluminum, magnesium, and silicon, and continue to heat up to 740-750°C, After all the alloying elements are melted, the aluminum alloy melt is obtained;

[0019] (2) Refining: Adjust the temperature of the aluminum alloy melt to 730-740°C, spray into the refining agent for refining treatment, then raise the temperature to 750-760°C, pass in argon gas for degassing and refining, ...

Embodiment 2

[0024] An aluminum alloy cast rod for automobile wheels, the mass percentages of the components are: Si0.8%, Mn0.03%, Mg0.9%, B0.3%, Cr0.15%, Fe0.03%, Nd0. 03%, La0.09%, Yb0.04%, the total amount of impurity elements of other metals and non-metals does not exceed 0.5%, and the rest is Al.

[0025] The preparation method of the aluminum alloy casting rod for the above-mentioned automobile wheel hub comprises the following steps:

[0026] (1) Melting: Melt the aluminum raw material, magnesium, silicon components and covering agent in a melting furnace to 700-720°C, then add other alloy components except aluminum, magnesium, and silicon, and continue to heat up to 740-750°C, After all the alloying elements are melted, the aluminum alloy melt is obtained;

[0027] (2) Refining: Adjust the temperature of the aluminum alloy melt to 730-740°C, spray into the refining agent for refining treatment, then raise the temperature to 750-760°C, pass in argon gas for degassing and refining, ...

Embodiment 3

[0032] An aluminum alloy cast rod for automobile wheels, the mass percentages of the components are: Si1.3%, Mn0.09%, Mg1.6%, B0.8%, Cr0.28%, Fe0.08%, Nd0. 08%, La0.16%, Yb0.08%, the total amount of impurity elements of other metals and non-metals does not exceed 0.5%, and the rest is Al.

[0033] The preparation method of the aluminum alloy casting rod for the above-mentioned automobile wheel hub comprises the following steps:

[0034] (1) Melting: Melt the aluminum raw material, magnesium, silicon components and covering agent in a melting furnace to 700-720°C, then add other alloy components except aluminum, magnesium, and silicon, and continue to heat up to 740-750°C, After all the alloying elements are melted, the aluminum alloy melt is obtained;

[0035] (2) Refining: Adjust the temperature of the aluminum alloy melt to 730-740°C, spray into the refining agent for refining treatment, then raise the temperature to 750-760°C, pass in argon gas for degassing and refining, ...

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Abstract

The invention discloses an aluminum alloy casting rod for an automobile hub. The aluminum alloy casting rod consists of the following components in percentage by mass: 0.8-1.3% of Si, 0.03-0.09% of Mn, 0.9-1.6% of Mg, 0.3-0.8% of B, 0.15-0.28% of Cr, 0.03-0.08% of Fe, 0.03-0.08% of Nd, 0.09-0.16% of La, 0.04-0.08% of Yb, less than or equal to 0.5% of other metal and non-metal impurity elements, and the balance of Al. A preparation method for the aluminum alloy casting method comprises the steps of melting, refining, stewing and casting. The casting rod disclosed by the invention is utilized to produce the aluminum alloy hub, so that the obtained aluminum alloy hub is beautiful in outlook, is light in weight and is high in strength, has relatively high corrosion resistance and relatively high fatigue resistance, and has a long service life.

Description

technical field [0001] The invention relates to the field of processing aluminum alloy cast rods, in particular to an aluminum alloy cast rod for automobile wheel hubs and a preparation method thereof. Background technique [0002] With the rapid development of the automobile industry, the application of aluminum alloy wheels is becoming more and more common. Aluminum alloy wheels have four advantages over steel wheels: one is to reduce the non-load weight, thereby improving grip; the other is to improve acceleration and braking; the third is to increase rigidity, and the high hardness of aluminum wheels is significantly reduced. The inclination of the tire or hub when cornering is especially important for cars equipped with high-performance tires; the fourth is to improve the cooling effect of the braking system. Some metals in the alloy of the aluminum hub are good heat conductors, so the aluminum hub has It is beneficial to quickly release the heat generated by braking t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C1/02C22C1/06
CPCC22C1/026C22C1/06C22C21/08
Inventor 覃铭何兵杨途才古斌
Owner BAISE UNIV
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