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Multi-element rare earth magnesium alloy powder of cored wire

A technology of rare earth magnesium and cored wire, applied in the field of cored wire alloy powder

Inactive Publication Date: 2017-03-22
浙江宝信炉料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a kind of rare earth magnesium alloy powder with multiple elements of the cored wire. The alloy powder can be added to the microalloyed steel by adopting the method of the cored wire, so that the magnesium treatment process can be stabilized and a higher absorption rate can be obtained. , so that the current problems are better solved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of rare earth magnesium alloy powder of multiple elements of a cored wire, the alloy powder is composed of the following element components according to the mass percentage:

[0043] Mg 10%,

[0044] Ca 2.0%,

[0045] Al 1.5%,

[0046] Si 25%,

[0047] Ti 2.0%,

[0048] Ba 3.0%,

[0049] Mn 4.0%,

[0050] Nb 1.0%,

[0051] V 0.5%,

[0052] Rare Earth Elements 2.0%,

[0053] P≤0.1%,

[0054] S ≤0.1%;

[0055] Fe balance.

[0056] Among them, rare earth magnesium, ferrosilicon and other elements are selected to be smelted in a vacuum furnace. Under certain process conditions, it is smelted and purified, and then cast into ingots. The ingot is broken into a certain particle size, and covered with an iron sheet to form a cored wire with a diameter of 13 mm. The outer layer is a 0.3-0.5 mm thick ordinary steel strip, the core is a rare earth magnesium alloy core powder, and the powder layer with heat insulation function is in between. This kind of cored ...

Embodiment 2

[0058] A kind of rare earth magnesium alloy powder of multiple elements of a cored wire, the alloy powder is composed of the following element components according to the mass percentage:

[0059] Mg 15%,

[0060] Ca 2.5%,

[0061] Al 2.0%,

[0062]Si 30%,

[0063] Ti 25%,

[0064] Ba 2.0%,

[0065] Mn 3.0%,

[0066] Nb 1.0%,

[0067] V 0.5%,

[0068] Rare Earth Elements 2.0%,

[0069] P≤0.1%,

[0070] S ≤0.1%;

[0071] Fe balance.

[0072] Among them, rare earth magnesium, ferrosilicon and other elements are selected to be smelted in a vacuum furnace. Under certain process conditions, it is smelted and purified, and then cast into ingots. The ingot is broken into a certain particle size, and covered with an iron sheet to form a cored wire with a diameter of 13 mm. The outer layer is a 0.3-0.5 mm thick ordinary steel strip, the core is a rare earth magnesium alloy core powder, and the powder layer with heat insulation function is in between. This kind of cored wi...

Embodiment 3

[0074] A kind of rare earth magnesium alloy powder of multiple elements of a cored wire, the alloy powder is composed of the following element components according to the mass percentage:

[0075] Mg 18%,

[0076] Ca 1.5%,

[0077] Al 2.0%

[0078] Si 30%,

[0079] Ti 1.5%,

[0080] Ba 2.5%,

[0081] Mn 3.0%,

[0082] Nb 1.0%,

[0083] V 0.5%,

[0084] Rare Earth Elements 2.0%,

[0085] P≤0.1%,

[0086] S ≤0.1%;

[0087] Fe balance.

[0088] Among them, rare earth magnesium, ferrosilicon and other elements are selected to be smelted in a vacuum furnace. Under certain process conditions, it is smelted and purified, and then cast into ingots. The ingot is broken into a certain particle size, and covered with an iron sheet to form a cored wire with a diameter of 13 mm. The outer layer is a 0.3-0.5 mm thick ordinary steel strip, the core is a rare earth magnesium alloy core powder, and the powder layer with heat insulation function is in between. This kind of cored w...

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Abstract

The invention relates to alloy powder of a cored wire and discloses multi-element rare earth magnesium alloy powder of a cored wire. The alloy powder comprises the following elementary components in percentage by mass: 10-20% of Mg, 0.5-2.5% of Ca, 1.0-2.5% of Al, 25-35% of Si, 1-2.5% of Ti, 0.5-3.5% of Ba, 2.5-5.0% of Mn, 0.5-1.0% of Nb, 0.5-1.0% of V, 1.0-5.0% of rare earth elements, less than or equal to 0.1% of P, less than or equal to 0.1% of S and the balance Fe. The alloy powder is added into microalloyed steel by using a cored wire method, so that the magnesium treatment process is smooth, the relatively high absorption rate can be obtained, and the problems existed at present are better solved.

Description

technical field [0001] The invention relates to a cored wire alloy powder. Background technique [0002] my country's steel industry is at its peak in history. In the next few years, it is estimated that my country's annual steel output will reach 1.8 billion tons, and the cored wire market will reach more than 5 billion yuan. According to the statistics of the World Iron and Steel Association, in 2011, the total steel output of all countries in the world reached 1.6 billion tons, an increase of 15%; while China ranked first in the world with an output of 700 million tons. In addition, with the continuous advancement of science and technology, various projects Structural design tends to be high-parameter, lightweight and large-scale. The performance of steel materials requires higher strength and better toughness. Core-spun wire feeding processing technology plays an indispensable and important role in this. [0003] Obtaining products with higher purity and higher uniformi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/00C22C30/00C22C38/06C22C38/02C22C38/14C22C38/04C22C38/12
CPCC21C7/0056C21C7/0006C22C30/00C22C38/002C22C38/005C22C38/02C22C38/04C22C38/06C22C38/12C22C38/14
Inventor 凌春源
Owner 浙江宝信炉料股份有限公司
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