A kind of preparation method and product of high thermal conductivity deformed magnesium-tin alloy

A tin alloy, high thermal conductivity technology, applied in the field of magnesium alloys, can solve the problems of the difference in the degree of reduction of pure magnesium, the reduction of thermal conductivity of pure magnesium, and the difficulty of thermal conductivity of magnesium alloys, and achieve the effect of eliminating segregation

Active Publication Date: 2021-02-09
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the thermal conductivity of magnesium alloys, the strength and thermal conductivity of the alloy are usually adjusted by the method of alloying elements, but the research results show that although the addition of alloying elements may improve the mechanical properties of the alloy, it will reduce the purity to varying degrees. The thermal conductivity of magnesium, and there are significant differences in the degree of reduction of the thermal conductivity of pure magnesium with different alloying elements
Although some scholars have found that adding some alloying elements to some magnesium alloys can improve the thermal conductivity of the alloy to a certain extent, it is still very difficult to control the thermal conductivity of magnesium alloys solely by adding alloying elements.

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
  • A kind of preparation method and product of high thermal conductivity deformed magnesium-tin alloy
  • A kind of preparation method and product of high thermal conductivity deformed magnesium-tin alloy
  • A kind of preparation method and product of high thermal conductivity deformed magnesium-tin alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Preparation of deformed magnesium-tin alloy with high thermal conductivity

[0027] (1) Solution treatment: heat the Mg-3Sn alloy ingot at a rate of 50°C / h to 350°C and keep it for 12h, then heat it up to 440°C for 0.5h and keep it for 24h, and finally cool it to room temperature by water quenching at 20°C ;

[0028] (2) Extrusion treatment: heat the Mg-3Sn alloy ingot treated in step (1) to 320°C and perform extrusion treatment with an extrusion ratio of 30 and an extrusion speed of 15mm / s to obtain a Mg-3Sn alloy extruded rods;

[0029] (3) Aging treatment: heating the extruded Mg-3Sn alloy rod obtained in step (2) to 220° C., keeping it warm for 300 hours, and then cooling to room temperature;

[0030] (4) Pre-deformation treatment: carry out 8.3% pre-compression deformation treatment along the extrusion direction of the Mg-3Sn alloy extruded bar after step (3);

[0031] (5) Annealing treatment: heating the extruded Mg-3Sn alloy rod treated in step (4) to 185° C.,...

Embodiment 2

[0033] Preparation of deformed magnesium-tin alloy with high thermal conductivity

[0034] (1) Solution treatment: heat up the Mg-5Sn alloy ingot at a rate of 100°C / h to 400°C and keep it for 8 hours, then heat it up to 480°C for 1.5 hours and keep it for 10 hours, and finally cool it to room temperature by water quenching at 70°C ;

[0035] (2) Extrusion treatment: heat the Mg-5Sn alloy ingot processed in step (1) to 400°C, press the extrusion ratio to be 25, and the extrusion speed to be 13mm / s for extrusion treatment to obtain the Mg-5Sn alloy extruded rods;

[0036] (3) Aging treatment: heating the extruded Mg-5Sn alloy rod obtained in step (2) to 240° C., keeping it warm for 120 hours, and then cooling to room temperature;

[0037] (4) Pre-deformation treatment: carry out 9.1% pre-compression deformation treatment along the extrusion direction of the Mg-5Sn alloy extruded bar after step (3);

[0038] (5) Annealing treatment: heating the extruded Mg-5Sn alloy rod treate...

Embodiment 3

[0040] Preparation of deformed magnesium-tin alloy with high thermal conductivity

[0041] (1) Solution treatment: the Mg-2Sn alloy ingot was heated up to 380°C at a rate of 80°C / h, then kept for 10 hours, then heated to 460°C for 2 hours, then kept for 16 hours, and finally cooled to room temperature by water quenching at 40°C;

[0042] (2) Extrusion treatment: heat the Mg-2Sn alloy ingot processed in step (1) to 380°C and perform extrusion treatment with an extrusion ratio of 20 and an extrusion speed of 10mm / s to obtain a Mg-2Sn alloy extruded rods;

[0043](3) Aging treatment: heating the extruded Mg-2Sn alloy rod obtained in step (2) to 180° C., keeping it warm for 500 hours, and then cooling to room temperature;

[0044] (4) Pre-deformation treatment: carry out 6.3% pre-compression deformation treatment along the extrusion direction of the Mg-2Sn alloy extruded bar after step (3);

[0045] (5) Annealing treatment: heating the extruded Mg-2Sn alloy rod treated in step (...

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
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention relates to a preparation method and product of a deformed magnesium-tin alloy with high thermal conductivity, belonging to the technical field of magnesium alloys. The method includes five processes of solid solution treatment, extrusion treatment, aging treatment, pre-deformation treatment and annealing treatment. The method mainly Through the combination of plastic deformation and heat treatment, through reasonable setting of process conditions in each process, the purpose of better controlling the grain orientation and precipitated phase orientation in the magnesium-tin alloy is achieved, so that the final prepared magnesium-tin alloy has high thermal conductivity. Rate. The method is simple and easy to operate, has low requirements on equipment and low cost, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of magnesium alloys, and in particular relates to a method for preparing a deformed magnesium-tin alloy with high thermal conductivity and a product thereof, in particular to a method for preparing a deformed magnesium alloy with high thermal conductivity by combining plastic deformation and heat treatment and a product prepared by the method . Background technique [0002] Magnesium alloys have received great attention as the lightest metal structural materials at present, mainly due to the low density, high specific strength and specific stiffness, good electromagnetic shielding performance and high thermal conductivity of magnesium alloys. The thermal conductivity of pure magnesium at room temperature is 158W / m·K, second only to pure copper and pure aluminum, making it have great development potential in some special fields that require both mechanical and thermal properties of materials. In order to imp...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/06C22C23/00
Inventor 钟丽萍王永建豆雨辰
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap