Method for manufacturing aluminum profiles used for coal cars

A manufacturing method and technology for aluminum profiles, applied in the field of aluminum alloy manufacturing, can solve the problems of reduced vehicle body performance, difficult assembly, and many rivet seams, and achieve the effects of improving production efficiency, shortening production cycle, and reducing production costs.

Inactive Publication Date: 2012-06-20
CHINA ZHONGWANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them: the underframe (center beam, bolster, and end beam) is an all-steel welded structure; the bathtub, side walls, and end walls are all made of riveted aluminum alloy plates and aluminum alloy extruded profiles; in the prior art, coal transportation The cross-section of aluminum profiles for vehicles is relatively small, which leads to more riveting seams and difficult assembly; more riveting processes will cause the performance of the entire car body to decline

Method used

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  • Method for manufacturing aluminum profiles used for coal cars
  • Method for manufacturing aluminum profiles used for coal cars
  • Method for manufacturing aluminum profiles used for coal cars

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1, the manufacturing method of the aluminum profile for the coal truck of the present embodiment comprises the following steps:

[0022] a. Casting rod ingredients: 6061 alloy is used, and the mass percentage ratio of each element in the ingredients meets the following requirements:

[0023] the element

Si

Mg

Fe

Cu

mn

Cr

Ti

Zn

other

Al

content

0.50

1.00

0.50

0.20

0.15

0.20

0.10

0.15

0.10

the remaining

[0024] b. Casting rod smelting: Put the above ingredients into the melting furnace in turn for smelting. The furnace is controlled at 72°C and covered with a flux for refining; after 60 minutes of feeding, when aluminum water appears in the furnace, start stirring, and then refining, After slag removal to obtain qualified components, the molten aluminum is injected from the melting furnace into the holding furnace, and the furnace temp...

Embodiment 2

[0033] Embodiment 2, the manufacturing method of the aluminum profile for the coal truck of the present embodiment comprises the following steps:

[0034] a. Casting rod ingredients: 6061 alloy is used, and the mass percentage ratio of each element in the ingredients meets the following requirements:

[0035] the element

Si

Mg

Fe

Cu

mn

Cr

Ti

Zn

other

Al

content

0.60

0.90

0.40

0.30

0.10

0.10

0.10

0.10

0.10

the remaining

[0036] b. Casting rod smelting: Put the above ingredients into the melting furnace for smelting in turn. The furnace is controlled at 750°C and covered with a flux for refining; after feeding for 30 minutes, when aluminum water appears in the furnace, start stirring, and then refining, After slag removal to obtain qualified components, the molten aluminum is injected from the melting furnace into the holding furnace, and the furnace te...

Embodiment 3

[0045] Embodiment 3, the manufacturing method of the aluminum profile for the coal truck of the present embodiment comprises the following steps:

[0046] a. Casting rod ingredients: 6061 alloy is used, and the mass percentage ratio of each element in the ingredients meets the following requirements:

[0047] the element

Si

Mg

Fe

Cu

mn

Cr

Ti

Zn

other

Al

content

0.55

0.95

0.50

0.25

0.15

0.15

0.10

0.15

0.10

the remaining

[0048] b. Casting rod smelting: Put the above ingredients into the melting furnace for smelting in turn. The furnace is controlled at 740°C and covered with a flux for refining; after feeding for 50 minutes, when aluminum water appears in the furnace, start stirring, and then refining, After slag removal to obtain qualified components, the aluminum liquid is injected from the melting furnace into the holding furnace, and the furnace te...

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Abstract

The invention discloses a method for manufacturing aluminum profiles used for coal cars, comprising the following steps of: a, casting bar compounding, b, casting bar smelting, c, casting bar casting, d, homogenization treatment, e, casting bar surface treatment, f, casting bar heating, g, mould heating, h, extrusion production, i, on-line quenching, j, profiles aging, etc., each parameter in each step is strictly controlled; through an experimental test, the performances of the aluminum profiles obtained by the method provided in the invention are as follows: the regulated non-proportional extension strength is above 245MPa; the tensile strength is above 265MPa; and the percentage elongation after fracture is above 9%. When ensuring experiment requirement of the aluminum profiles used for the coal cars, the performances can simplify the process flow for assembling car bodies, improve the production efficiency, shorten the production cycle and reduc ethe production cost; and the method has remarkable economic benefit.

Description

technical field [0001] The invention relates to the field of aluminum alloy manufacturing, in particular to a method for manufacturing aluminum profiles for coal trucks. Background technique [0002] At present, most of the coal truck body is a double bathtub type, aluminum alloy riveted structure, mainly composed of an underframe, a bathtub, side walls, end walls and struts. Among them: the underframe (center beam, bolster, and end beam) is an all-steel welded structure; the bathtub, side walls, and end walls are all made of riveted aluminum alloy plates and aluminum alloy extruded profiles; in the prior art, coal transportation The cross-section of aluminum profiles for vehicles is relatively small, which leads to more riveting seams and difficult assembly; more riveting processing will cause the performance of the entire car body to decline. [0003] In view of the above-mentioned shortcomings, it is necessary to provide a new aluminum alloy manufacturing process from th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22F1/047
Inventor 曹振华张辉孙明杰佟明明李洪林
Owner CHINA ZHONGWANG
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