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

A kind of SM-containing multi-element magnesium alloy sacrificial anode material and preparation method thereof

A sacrificial anode and magnesium alloy technology, which is applied in the field of multi-component magnesium alloy sacrificial anode materials and its preparation, can solve the problems of affecting service life and uneven consumption, and achieve the effects of improving uniformity, uniform consumption and improving structure

Active Publication Date: 2019-07-26
LUOYANG INST OF SCI & TECH
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-element magnesium alloy sacrificial anode material containing Sm, which solves the problem that the existing magnesium alloy sacrificial anode material is consumed unevenly in a corrosive environment and affects the service life

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 SM-containing multi-element magnesium alloy sacrificial anode material and preparation method thereof
  • A kind of SM-containing multi-element magnesium alloy sacrificial anode material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The multi-component magnesium alloy sacrificial anode material containing Sm in this embodiment is composed of the following components in mass percentage: Zn 6.0%, Sm 0.6%, Ca 0.8%, Sb 0.1%, and the balance is Mg and unavoidable impurities. The total mass content of impurity elements Si, Fe, Cu and Ni in the sacrificial anode material is less than 0.2%.

[0023] The preparation method of the multi-element magnesium alloy sacrificial anode material containing Sm of the present embodiment comprises the following steps:

[0024] Take alloy raw materials pure magnesium (Mg), pure zinc (Zn), pure antimony (Sb), magnesium samarium (Mg-Sm) master alloy, magnesium calcium (Mg-Ca) master alloy, in CO 2 +SF 6 Under the protection of mixed gas, use a corundum crucible to heat up to 680° C. in an induction furnace, keep it warm for 5 minutes, pour it into a steel mold, and obtain a magnesium alloy ingot, which is the magnesium alloy sacrificial anode material.

Embodiment 2

[0026] The Sm-containing multi-element magnesium alloy sacrificial anode material of this embodiment is composed of the following components in mass percentage: Zn6.2%, Sm0.5%, Ca0.7%, Sb0.2%, and the balance is Mg and unavoidable impurities; The total mass content of impurity elements Si, Fe, Cu and Ni in the anode material is less than 0.2%.

[0027] The preparation method of the multi-element magnesium alloy sacrificial anode material containing Sm of the present embodiment comprises the following steps:

[0028] Take alloy raw materials pure magnesium (Mg), pure zinc (Zn), pure antimony (Sb), magnesium samarium (Mg-Sm) master alloy, magnesium calcium (Mg-Ca) master alloy, in CO 2 +SF 6 Under the protection of mixed gas, use a corundum crucible to heat up to 690° C. in an induction furnace, keep it warm for 5 minutes, and pour it into a steel mold to obtain a magnesium alloy ingot, which is the magnesium alloy sacrificial anode material.

Embodiment 3

[0030] The multi-component magnesium alloy sacrificial anode material containing Sm of the present embodiment is composed of the following components in mass percentage: 6.4%, Sm 0.4%, Ca 0.6%, Sb 0.3%, and the balance is Mg and unavoidable impurities; wherein the impurities The total mass content of elements Si, Fe, Cu and Ni in the anode material is less than 0.2%.

[0031] The preparation method of the multi-element magnesium alloy sacrificial anode material containing Sm of the present embodiment comprises the following steps:

[0032] Take alloy raw materials pure magnesium (Mg), pure zinc (Zn), pure antimony (Sb), magnesium samarium (Mg-Sm) master alloy, magnesium calcium (Mg-Ca) master alloy, in CO 2 +SF 6 Under the protection of mixed gas, use a corundum crucible to heat up to 700° C. in an induction furnace, keep it warm for 5 minutes, and pour it into a steel mold to obtain a magnesium alloy ingot, which is the magnesium alloy sacrificial anode material.

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
current efficiencyaaaaaaaaaa
Login to View More

Abstract

The invention relates to a Sm-containing multielement magnesium alloy sacrificial anode material and a preparation method thereof and belongs to the technical field of sacrificial anode materials. The Sm-containing multielement magnesium alloy sacrificial anode material is composed of, by mass percentage, 6.0%-6.4% of Zn, 0.4%-0.6% of Sm, 0.6%-0.8% of Ca, 0.1%-0.3% of Sb and the balance Mg and inevitable impurities. The magnesium alloy sacrificial anode material does not contain Al, so that generation of a netlike Mg17Al12 phase is avoided; in order to guarantee performance and control cost, the amount of the added Zn ranges, by weight percentage, from 6.6% to 6.8%; a tiny amount of Sm, Ca and Sb are added, a Mg12Sm phase, a Mg2Ca phase and a Mg13Sb2 phase which are high in melting point are generated, and the phases can serve as an effective nucleation core; and grains are refined, structural homogeneity is improved, and furthermore, the magnesium alloy anode material is uniformly consumed in a corrosive environment.

Description

technical field [0001] The invention relates to a multi-element magnesium alloy sacrificial anode material containing Sm and a preparation method thereof, belonging to the technical field of sacrificial anode materials. Background technique [0002] The economic loss caused by the corrosion of metal materials is huge. Using sacrificial anodes for electrochemical protection is an effective method to prevent metal materials from corroding, and it is of great significance to improve the corrosion resistance and prolong the service life of metal materials. Magnesium alloys have good electrochemical properties and are often used as sacrificial anode materials to protect the cathode materials of equipment and devices to prolong the service life of cathode materials. [0003] However, common magnesium alloy anode materials in the prior art, such as the commonly used brand AZ91 (Al 8.5-9.5wt%, Zn0.45-0.9wt%, Mn 0.17-0.40wt%), etc., due to the reasons of composition design and prepar...

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): C23F13/14C22C23/04C22C1/03
CPCC22C1/03C22C23/04C23F13/14
Inventor 李萍王莹赵红玲张东晓徐玉梅
Owner LUOYANG INST OF SCI & TECH