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Core agent of magnesium alloy cored wire and method for using core agent to manufacture cored wire

A manufacturing method and technology of cored wire, which is applied in the field of magnesium alloy cored wire, can solve the problems of large inclusion size and performance deterioration, and achieve the effect of strong deoxidation

Inactive Publication Date: 2019-05-21
SHANGHAI YONGYE METALLURGICAL TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem with calcium treatment is that although the number of oxide inclusions in steel can be greatly reduced, the remaining inclusions are often relatively large in size, and microcracks and cavities will be formed around the inclusions along the deformation direction during rolling. Lead to a series of performance deterioration of Gang

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A core agent for magnesium alloy cored wire, the composition of the core agent is as follows: , 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60%, S can be 0.01, 0.0125, 0.015, 0.02, 0.025, 0.03%, P can be 0.01, 0.0125, 0.015, 0.02, 0.025, 0.03%, the balance of Fe.

[0024] A method for manufacturing a magnesium alloy cored wire, the core wire is wound by the core agent and used for molten steel refining; the specific components of the core agent are: Mg: 8%, Al: 60%, S: 0.03 %, P: 0.03%, Fe: the balance, each component is made into granules by die-casting, and mixed evenly to make cored wire powder, which is made by winding the cored wire machine, and the nominal size of the cored wire is φ13mm , The weight of the core wire is 200-250g / m, and the strip size is: 0.4-0.45mm (thickness) × 52-58 (width).

[0025] Preferably, the particle size distribution of the core agent components is: 0.5-3mm 30%; 0.8-2mm 50%; and the rest 0.1-1mm.

[0026] A magnesium ...

Embodiment 2

[0035] A method for manufacturing a magnesium alloy cored wire, the core wire is wound by the core agent and used for molten steel refining; the specific components of the core agent are: Mg: 8.5%, Al: 55.5%, S: 0.01 %, P: 0.025%, Fe: the balance, each component is made into granules by die-casting, and mixed evenly to make cored wire powder, and the cored wire powder is wound by a cored wire machine.

[0036] Preferably, the particle size distribution of the core agent components is: 0.5-3mm 30%; 0.8-2mm 50%; and the rest 0.1-1mm.

[0037] The nominal size of the cored wire is φ13mm, the weight of the core wire is 200-250g / m, and the strip size is: 0.4-0.45mm (thickness) × 52-58 (width).

[0038]A magnesium alloy cored wire manufacturing process. According to the theory of wire feeding technology, the wire feeder injects the core agent or core wire containing magnesium, aluminum, iron, silicon, and phosphorus into the ladle, and the molten steel is brought into the bottom of ...

Embodiment 3

[0040] A method for manufacturing a magnesium alloy cored wire, the core wire is wound by the core agent and used for molten steel refining; the specific components of the core agent are: Mg: 10.5%, Al: 59.5%, S: 0.025 %, P: 0.03%, Fe: the balance, each component is made into granules by die-casting, and mixed evenly to make cored wire powder, and the cored wire powder is wound by a cored wire machine to make the nominal size of the cored wire It is φ13mm, the core wire weight is 200-250g / m, and the strip steel size is: 0.4-0.45mm (thickness) × 52-58 (width).

[0041] Preferably, the particle size distribution of the core agent components is: 0.5-3mm 30%; 0.8-2mm 50%; and the rest 0.1-1mm.

[0042] A magnesium alloy cored wire manufacturing process. According to the theory of wire feeding technology, the wire feeder injects the core agent or core wire containing magnesium, aluminum, iron, silicon, and phosphorus into the ladle, and the molten steel is brought into the bottom o...

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PUM

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Abstract

The invention relates to a core agent of a magnesium alloy cored wire and a method for using the core agent to manufacture the cored wire. The components of the core agent are as follows: 8-15% of Mg,40-60% of Al, 0-0.03% of S, 0-0.03% of P, and the balance Fe; the components are prepared into granules by die-casting, and the granules are mixed uniformly to be prepared into cored wire powder; andthe cored wire powder is prepared into the cored wire in a winding mode by a cored wire machine. The nominal dimension of the cored wire is phi 13 mm, and the weight of the cored wire is 200-250 g / m.The cored wire is injected into a ladle at a certain speed by a wire feeder; and the cored wire is taken to the position near the bottom of the ladle by molten steel to be gradually molten, and accordingly the core powder of the cored wire is released into the molten steel. Through the action of the cored wire on the molten steel, the purpose of ultra-deep desulfurization of the molten steel is met. By using the cored wire to add alloys of magnesium, aluminum, iron and the like into the molten steel, a good effect is achieved, and the utilization rates of magnesium, aluminum and iron are high.

Description

technical field [0001] The invention relates to a magnesium alloy cored wire core agent and a method for manufacturing the cored wire. The magnesium alloy cored wire is produced by die-casting the magnesium alloy into a suitable particle size and particle size according to the composition requirements of the magnesium alloy as a raw material. . Background technique [0002] With the continuous advancement of science and technology, the design of various engineering structures tends to be high-parameter, lightweight and large-scale. The requirements for the performance of steel materials are higher strength and better toughness. Core-spun wire feeding processing technology plays an important role in this. missing role. [0003] Obtaining products with higher purity and higher uniformity is a hot spot in steel production and research at present, and it is also the development direction of metallurgical technology. The most typical and widely used inclusion denaturation treat...

Claims

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Application Information

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IPC IPC(8): C21C7/00
CPCY02P10/20
Inventor 谷春晓
Owner SHANGHAI YONGYE METALLURGICAL TECH DEV
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