Aluminum-containing silver-magnesium alloy material and preparation method thereof

A silver-magnesium alloy and activation treatment technology, applied in the field of metal material processing technology, can solve problems such as difficulty in secondary electron emission, and achieve the effects of improving metal ductility, improving plastic workability and ductility, and enhancing corrosion resistance.

Inactive Publication Date: 2020-02-14
KINKOU SUZHOU COPPER IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, there are many practical difficulties in making secondary electron emitters directly from pure magnesium oxide.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1, putting 4.65% by mass of magnesium, 3% of aluminum, impurities not exceeding 0.2% in total and the balance of silver into a vacuum melting furnace for melting and refining, and continuous casting to form a strip blank;

[0025] Step 2, by homogenizing annealing;

[0026] Step 3, the plate and strip rolling mill performs cold rolling and intermediate annealing on the annealed billet successively, and the number of times of cold rolling and intermediate annealing being alternately implemented is 7 times;

[0027] Step 4, the finished product is softened and annealed continuously on-line to achieve the plasticity index that meets the stamping requirements;

[0028] Step 5. Activate the strip after the above-mentioned finished product is continuously annealed online in an atmosphere-protected through-type annealing furnace. The temperature during the activation treatment is 320 ° C, the treatment time of the activation treatment is 20 minutes, and the activation med...

Embodiment 2

[0030] Step 1, putting 4.657% by mass of magnesium, 5% of aluminum, impurities not exceeding 0.2% in total and the balance of silver into a vacuum melting furnace for melting and refining, and continuous casting to form a strip blank;

[0031] Step 2, by homogenizing annealing;

[0032] Step 3, the plate and strip rolling mill performs cold rolling and intermediate annealing on the annealed billet in sequence, and the number of times of cold rolling and intermediate annealing alternately is 8 times;

[0033] Step 4, the finished product is softened and annealed continuously on-line to achieve the plasticity index that meets the stamping requirements;

[0034] Step 5. Activate the strip after the above-mentioned finished product is continuously annealed online in an atmosphere-protected through-type annealing furnace. The temperature during the activation treatment is 380 ° C, the treatment time of the activation treatment is 40 minutes, and the activation medium during the act...

Embodiment 3

[0036] Step 1, putting 4.75% by mass of magnesium, 7% of aluminum, impurities not exceeding 0.2% in total and the balance of silver into a vacuum melting furnace for melting and refining, and continuous casting to form a strip blank;

[0037] Step 2, by homogenizing annealing;

[0038] Step 3, the plate and strip rolling mill performs cold rolling and intermediate annealing on the annealed billet in turn, and the number of times of cold rolling and intermediate annealing alternately is 10 times;

[0039] Step 4, the finished product is softened and annealed continuously on-line to achieve the plasticity index that meets the stamping requirements;

[0040] Step 5. Perform activation treatment on the strip of the above-mentioned finished product after online continuous annealing in an atmosphere-protected through-type annealing furnace. The temperature during the activation treatment is 320° C. to 400° C. The activation medium is helium-oxygen mixed gas. During the activation t...

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Abstract

The invention discloses an aluminum-containing silver-magnesium alloy material and a preparation method thereof. The aluminum-containing silver-magnesium alloy material comprises, by mass, 4.65%-4.75%of magnesium, 3%-7% of aluminum, not greater than 0.2% of impurities in total, and the balance silver. The alloy obtained through the preparation method and proportioning has the advantages that theevaporation point of magnesium is improved, the parameter range interval process of silver-magnesium alloy refining is improved, the high-quality refining effect is realized, the plastic processing performance and ductility of the silver-magnesium alloy are improved, the stamping performance in use is improved, and the corrosion resistance of a finished product is improved.

Description

technical field [0001] The invention relates to the field of metal material processing technology, in particular to an aluminum-containing silver-magnesium alloy material and a preparation method thereof. Background technique [0002] It is well known that magnesium oxide thin films have good secondary electron emission properties. The secondary electron emission coefficient is large, the change of the secondary electron emission coefficient with temperature is small, and the most probable energy of the secondary electron is small (about 1.1eV). It has no thermal electron emission at room temperature, no photoelectric emission in the visible light region, and It is resistant to electron bombardment and stable in the atmosphere, so it is an ideal secondary electron emission material. Unfortunately, there are many practical difficulties in making secondary electron emitters directly from pure magnesium oxide. Using silver as the matrix to carry magnesium element makes it pos...

Claims

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Application Information

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IPC IPC(8): C22C5/06C22C1/02C22F1/14C22F1/02
CPCC22C1/02C22C5/06C22F1/02C22F1/14
Inventor 朱戴博韩坦陈红
Owner KINKOU SUZHOU COPPER IND CO LTD
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