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

A kind of flame brazing welding method of magnesium alloy

A welding method and flame brazing technology, which is applied in the field of magnesium alloy welding, can solve the problems of raw material loss and high cost of smelting equipment, and achieve the effects of improving elongation, improving strength and avoiding loss

Inactive Publication Date: 2015-09-30
STATE GRID CORP OF CHINA +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the preparation methods of magnesium alloy solders are obtained by heating and melting different alloy ingots and then mechanically obtained. However, this preparation method will inevitably cause the loss of raw materials, and the cost of smelting equipment is high and regular maintenance is required.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A. Preparation of solder mixed powder

[0034] (1) According to the following ratio of raw materials, select the corresponding raw materials in parts by weight:

[0035] Al 29

[0036] Zn 23

[0037] Mg 6

[0038] Na 3 AlF 6 7

[0039] (2) Ball mill the Mg powder, Zn powder and Al powder in the above raw materials separately, use absolute ethanol for liquid protection, use steel balls for the ball milling, the speed is 350r / min, and the ball milling time is 3~5 hours;

[0040] (3) Mg powder, Zn powder and Al powder processed in the above steps, and Na in raw materials 3 AlF 6 Mix well, then place in a drying oven, dry at a temperature of 100°C±10°C for 40-60min, and the protective gas is nitrogen to obtain a mixed powder;

[0041] B. Preparation of brazing filler metal

[0042] (4) In addition, select Mg-Mn alloy ingots, in which the Mg content is not less than 90%, and roll the alloy ingots through a four-roll hot rolling mill to a strip with a t...

Embodiment 2

[0047] A. Preparation of solder mixed powder

[0048] (1) According to the following ratio of raw materials, select the corresponding raw materials in parts by weight:

[0049] Al 32

[0050] Zn 119

[0051] Mg 7

[0052] Na 3 AlF 6 6

[0053] (2) Ball mill the Mg powder, Zn powder and Al powder in the above raw materials separately, use absolute ethanol for liquid protection, use steel balls for the ball milling, the speed is 350r / min, and the ball milling time is 3~5 hours;

[0054] (3) Mg powder, Zn powder and Al powder processed in the above steps, and Na in raw materials 3 AlF 6 Mix well, then place in a drying oven, dry at a temperature of 100°C±10°C for 40-60min, and the protective gas is nitrogen to obtain a mixed powder;

[0055] B. Preparation of brazing filler metal

[0056] (4) In addition, select Mg-Mn alloy ingots, in which the Mg content is not less than 90%, and roll the alloy ingots through a four-roll hot rolling mill to a strip with a ...

Embodiment 3

[0061] A. Preparation of solder mixed powder

[0062] (1) According to the following ratio of raw materials, select the corresponding raw materials in parts by weight:

[0063] Al 37

[0064] Zn 15

[0065] Mg 9

[0066] Na 3 AlF 6 4

[0067] (2) Ball mill the Mg powder, Zn powder and Al powder in the above raw materials separately, use absolute ethanol for liquid protection, use steel balls for the ball milling, the speed is 350r / min, and the ball milling time is 3~5 hours;

[0068] (3) Mg powder, Zn powder and Al powder processed in the above steps, and Na in raw materials 3 AlF 6 Mix well, then place in a drying oven, dry at a temperature of 100°C±10°C for 40-60min, and the protective gas is nitrogen to obtain a mixed powder;

[0069] B. Preparation of brazing filler metal

[0070] (4) In addition, select Mg-Mn alloy ingots, in which the Mg content is not less than 90%, and roll the alloy ingots through a four-roll hot rolling mill to a strip with a t...

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
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a flame brazing welding method for magnesium alloys. When brazing filler metals are prepared, firstly, brazing filler metal mixed powder is made, secondly, the powder is wrapped by magnesium ribbons, the brazing filler metals are made by the aid of a cold drawing method, the diameters and lengths of the final brazing filler metals can be adjusted as needed, raw materials are not fused in the whole process, so that loss of the raw materials in the melting and ingoting process is avoided, and melting equipment is omitted, and finally, the brazing filler metals are welded by argon tungsten-arc welding.

Description

technical field [0001] The invention belongs to the technical field of magnesium alloy welding, and in particular relates to a magnesium alloy welding method. Background technique [0002] Materials are the material basis for the survival and development of human beings, the conquest of nature and the transformation of nature. They are also the forerunner of the development of human society, especially the development of modern high technology, which depends on the progress of new material technology. The research and development of new material structures is an important pillar to improve the level of industrial technology. If there is no development of modern superstructure materials, there will be no progress in the aerospace industry in the world today. Non-ferrous metal materials are the most important class of materials, such as magnesium and aluminum. Among them, magnesium is rich in reserves. Compared with other commonly used metals, magnesium has the advantages of ...

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): B23K1/00B23K1/20B23K1/19B23K35/28B23K35/40
Inventor 董军吴涛张春燕靳城刘强韩冰刘义杨飞
Owner STATE GRID CORP OF CHINA