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Production technique of high-damping aluminum-silicon alloy plate

An aluminum-silicon alloy and production process technology, applied in the field of metal material preparation, can solve problems such as endangering people's health, limiting machine performance, polluting the environment, etc., achieving good comprehensive mechanical properties, saving rare earth resources and other metals, and improving toughness and plasticity. Effect

Active Publication Date: 2014-10-08
南通佳坤新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Vibration and noise are one of the public hazards brought along with the development of modern industry. It seriously damages the stability and reliability of mechanical equipment, limits the improvement of machine performance, pollutes the environment, and endangers people's health.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Heat the eutectic aluminum-silicon alloy ingot to 500°C, keep it warm for 4 hours, heat the mold to 450°C, keep it warm for 2 hours, and carry out hot extrusion at an extrusion speed of 8m / min and an extrusion ratio of 25:1. The product is from After the die is extruded, it is air-cooled, and the material is solidified at 530°C for 10 hours, aged at 170°C for 8 hours, the cold rolling reduction rate is 5%, the tensile strength is 282Mpa, and the elongation is 14.44%. Fixed frequency f=0.75Hz =49.2 .

Embodiment 2

[0016] Heat the eutectic aluminum-silicon alloy ingot to 500°C, keep it warm for 4 hours, heat the mold to 450°C, keep it warm for 2 hours, and carry out hot extrusion at an extrusion speed of 8m / min and an extrusion ratio of 25:1. The product is from After the die is extruded, it is air-cooled, and the material is solidified at 530°C for 10 hours, aged at 150°C for 12 hours, the cold rolling reduction rate is 7%, the tensile strength is 297Mpa, and the elongation is 16.34%. Fixed frequency f=0.75Hz =52.4 .

Embodiment 3

[0018] Heat the eutectic aluminum-silicon alloy ingot to 500°C, keep it warm for 4 hours, heat the mold to 450°C, keep it warm for 2 hours, and carry out hot extrusion at an extrusion speed of 14m / min and an extrusion ratio of 25:1. The product is from After the die is extruded, it is air-cooled, and the material is solidified at 530°C for 10 hours, aged at 120°C for 20 hours, the cold rolling reduction rate is 9%, the tensile strength is 305Mpa, and the elongation is 15.44%. Fixed frequency f=0.75Hz =60 .

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Abstract

The invention discloses a production technique of a high-damping aluminum-silicon alloy plate, which comprises the following steps: 1) preheating an ingot blank and a mold, wherein the preheating temperature of the ingot blank is 500-550 DEG C, the holding time of the ingot blank is 3-7 loaf, the preheating temperature of the mold is 420-450 DEG C, and the holding time of the mold is 1-3 hours; 2) installing the mold, transferring the ingot blank to an extrusion cylinder, starting an extruding machine to perform extrusion at the speed of 8-14 m / minute at the extrusion ratio of 25:1, and cooling the product extruded from the mold opening in air; 3) carrying out heat treatment on the cooled product, carrying out solution treatment on the extruded product at 500-550 DEG C for 6-12 hours, and carrying out aging treatment at 120-180 DEG C for 8-20 hours; and 4) carrying out cold rolling on the product subjected to heat treatment, wherein the reduction rate of the cold rolling technique is 5%.

Description

technical field [0001] The invention relates to a pressure processing and heat treatment method of an aluminum-silicon alloy, in particular to a production process of a high-damping aluminum-silicon alloy plate. Specifically, it belongs to the field of metal material preparation. Background technique [0002] Vibration and noise are one of the public hazards brought along with the development of modern industry. They seriously damage the stability and reliability of mechanical equipment, limit the improvement of machine performance, pollute the environment and endanger people's health. To some extent, it restricts the further development of modern industry, especially high-tech fields such as aerospace and navigation. Both aviation and marine have some degree of noise and vibration problems. Failure analysis of rocket satellites shows that about 2 / 3 of the effectiveness is related to vibration and noise (Li Peiyong et al., Research Status of Material Damping and Damping Al...

Claims

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Application Information

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IPC IPC(8): C22F1/043C22C21/02
Inventor 陆永唐继勇杨明军褚衍玲杜文亮
Owner 南通佳坤新材料科技有限公司
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