Unlock instant, AI-driven research and patent intelligence for your innovation.

Moderate-strength aluminum-magnesium alloy wire for rivets and manufacturing method thereof

A technology of aluminum-magnesium alloy and rivets, which is applied in the field of high-strength aluminum-magnesium alloy wire and its preparation, can solve the problem of high cracking rate of cold heading, and achieve the effect of solving the high cracking rate of cold heading

Active Publication Date: 2019-08-09
JIANGSU HENGTONG ELECTRICAL SPECIAL WIRE CO LTD +1
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a medium-strength aluminum-magnesium alloy wire for rivets and a preparation method thereof. The present invention solves the problem of high cracking rate of wire rod cold heading through the innovation of components and process methods, and can also obtain Medium strength mechanical properties

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Moderate-strength aluminum-magnesium alloy wire for rivets and manufacturing method thereof
  • Moderate-strength aluminum-magnesium alloy wire for rivets and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] An aluminum-magnesium alloy wire with better comprehensive performance for processing rivets, based on its total weight, includes the following components in mass percentages: Si 0.03wt%; Fe 0.12wt%; Mn0.10wt%; Mg 2.4 wt%; Cr 0.08wt%; V0.009wt%; Ti 0.015wt%; Be0.0002wt%, the balance being Al and unavoidable impurities.

[0032] Its preparation method is as follows:

[0033] (1) Melting: According to the above ingredients, aluminum ingots and aluminum intermediate alloy ingots of corresponding weights are dispensed, and put into a melting furnace for melting at a melting temperature of 760°C and kept for 35 minutes. Then carry out sufficient stirring (stirring time 30min) and carry out hydrogen and impurity elimination treatment on the aluminum alloy melt with qualified composition.

[0034] (2) Casting: Control the temperature of the clean aluminum alloy melt obtained in the above steps at 745°C, and then quickly and uniformly cool it to 400°C through a water-cooled wh...

Embodiment 2

[0040] An aluminum-magnesium alloy wire with better comprehensive performance for processing rivets, based on its total weight, includes the following components in mass percentages: Si 0.05wt%; Fe 0.15wt%; Mn0.08 / wt%; Mg 2.2wt%; Cr 0.16wt%; V0.02wt%; Ti0.025wt%; Be 0.00014wt%, the balance is Al and unavoidable impurities.

[0041]Its preparation method is as follows:

[0042] (1) Melting: According to the above ingredients, aluminum ingots and aluminum intermediate alloy ingots of corresponding weights are dispensed and put into a melting furnace for melting at a melting temperature of 750°C and kept for 60 minutes. Then carry out sufficient stirring (stirring time 30min) and carry out hydrogen and impurity elimination treatment on the aluminum alloy melt with qualified composition.

[0043] (2) Casting: Control the temperature of the clean aluminum alloy melt obtained in the above steps at 750°C, and then quickly and uniformly cool it to 420°C through a water-cooled wheel-t...

Embodiment 3

[0049] An aluminum-magnesium alloy wire with better comprehensive performance for processing rivets, based on its total weight, includes the following components in mass percentages: Si 0.03wt%; Fe 0.13wt%; Mn0.20wt%; Mg 2.8 wt%; Cr 0.13wt%; V0.017wt%; Ti 0.03wt%; Be0.00008wt%, the balance is Al and unavoidable impurities.

[0050] Its preparation method is as follows:

[0051] (1) Melting: According to the above ingredients, aluminum ingots and aluminum intermediate alloy ingots of corresponding weights are dispensed, and put into a melting furnace for melting at a melting temperature of 770°C and kept for 40 minutes. Then carry out sufficient stirring (stirring time 30min) and carry out hydrogen and impurity elimination treatment on the aluminum alloy melt with qualified composition.

[0052] (2) Casting: Control the temperature of the clean aluminum alloy melt obtained in the above steps at 715°C, and then quickly and uniformly cool it to 380°C through a water-cooled wheel...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Average grain sizeaaaaaaaaaa
Average grain sizeaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to an aluminum-magnesium alloy for rivets. The alloy comprises, by mass: Si: 0.01-0.05%, Fe: 0.08-0.15%, Mn: 0.08-0.16%; Mg: 2.2-2.8%, Cr: 0.08-0.16%, V: 0.003-0.020%, Ti: 0.008-0.03%, Be 0.00005-0.0002%, and the balance Al. The invention also provides a manufacturing method of an aluminum-magnesium alloy wire for rivets. The method comprises the following steps: (1) smelting; (2) casting; (3) rolling; (4) drawing and intermediate annealing: non-finished product drawing and finished product drawing are included. Specifically, during non-finished product drawing, intermediate annealing is needed every time the section compressibility of the material deforms at 40%-60%, and then drawing is carried out; during the finished product drawing, the aluminum-magnesium alloy wire for rivets is obtained when the section compression rate of the material is 10%-30%. The intermediate annealing comprises the following steps that the drawn wire is heated to 100-150 DEG C and theheat is preserved for 4-5 hours; and the temperature is then increased to 320-380 DEG C at a rate of 50-100 DEG C / h, held for 0.5-1 hour, and then cooled to room temperature.

Description

technical field [0001] The invention relates to the field of metal materials for rivets, in particular to a medium-strength aluminum-magnesium alloy wire for rivets and a preparation method thereof. Background technique [0002] Aluminum alloy rivets are widely used in riveting of construction, automobile, aircraft, furniture and other products. At present, the cracking rate of the wire rod for processing aluminum alloy rivets is relatively high. For example, the cracking rate of the aluminum alloy bar used for the rivet of a railway wagon car body involved in CN104717870B reaches 4.7%. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a medium-strength aluminum-magnesium alloy wire for rivets and a preparation method thereof. The present invention solves the problem of high cracking rate of wire rod cold heading through the innovation of components and process methods, and can als...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C22C21/08C22C1/03C22F1/047
CPCC22C1/026C22C1/03C22C21/08C22F1/047
Inventor 贾伟张营军郑小伟缪思童张桓张军孟博蔺亚强
Owner JIANGSU HENGTONG ELECTRICAL SPECIAL WIRE CO LTD