High-titanium titanium-silicon nitride alloy core spun yarn

A technology of titanium silicon nitride and alloy cladding, which is applied in the field of alloy cored wire, can solve the problems of low recovery rate, achieve the effects of reducing consumption, significant economic benefits, and improving yield rate

Inactive Publication Date: 2017-05-10
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

[0006] The purpose of the present invention is to provide a high-titanium nitride-titanium-silicon alloy cored wire, which can not only solve the problem of low recovery rat

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A high-titanium nitride-titanium-silicon alloy cored wire, the cored wire includes a core layer and a steel skin layer wrapped outside the core layer, the core layer is a high-titanium titanium nitride-silicon alloy with a particle size of 3 mm or less Powder, a mesh support layer made of steel or iron is arranged between the core layer and the steel skin layer, and the high-titanium nitride silicon nitride alloy powder is composed of the following elemental components according to mass percentage:

[0038] Al 2.0%

[0039] N 10%

[0040] Mn 4.0%

[0041] Mg 2.0%

[0042] Ti 40%

[0043] P ≤0.1%

[0044] S ≤0.1%

[0045] Si 35%;

[0046] Fe balance.

[0047] The present invention selects sponge iron, sponge titanium, ferrosilicon and ferromanganese to smelt in a vacuum furnace. Under certain process conditions, nitriding is carried out to achieve the best effect of nitriding (specified content), and then cast into ingots. The ingot is broken into a certain part...

Embodiment 2

[0049]A high-titanium nitride-titanium-silicon alloy cored wire, the cored wire includes a core layer and a steel skin layer wrapped outside the core layer, the core layer is a high-titanium titanium nitride-silicon alloy with a particle size of 3 mm or less Powder, a mesh support layer made of steel or iron is arranged between the core layer and the steel skin layer, and the high-titanium nitride silicon nitride alloy powder is composed of the following elemental components according to mass percentage:

[0050] Al 2.5%

[0051] N 5%

[0052] Mn 2.5%

[0053] Mg 2.0%

[0054] Ti 50%

[0055] P ≤0.1%

[0056] S ≤0.1%

[0057] Si 35%;

[0058] Fe balance.

[0059] The present invention selects sponge iron, sponge titanium, ferrosilicon and ferromanganese to smelt in a vacuum furnace. Under certain process conditions, nitriding is carried out to achieve the best effect of nitriding (specified content), and then cast into ingots. The ingot is broken into a certain partic...

Embodiment 3

[0061] A high-titanium nitride-titanium-silicon alloy cored wire, the cored wire includes a core layer and a steel skin layer wrapped outside the core layer, the core layer is a high-titanium titanium nitride-silicon alloy with a particle size of 3 mm or less Powder, a mesh support layer made of steel or iron is arranged between the core layer and the steel skin layer, and the high-titanium nitride silicon nitride alloy powder is composed of the following elemental components according to mass percentage:

[0062] Al 2.5%

[0063] N 25%

[0064] Mn 2.5%

[0065] Mg 2.0%

[0066] Ti 30%

[0067] P ≤0.1%

[0068] S ≤0.1%

[0069] Si 30%;

[0070] Fe balance.

[0071] The present invention selects sponge iron, sponge titanium, ferrosilicon and ferromanganese to smelt in a vacuum furnace. Under certain process conditions, nitriding is carried out to achieve the best effect of nitriding (specified content), and then cast into ingots. The ingot is broken into a certain part...

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Abstract

The invention relates to an alloy core spun yarn, in particular to a high-titanium titanium-silicon nitride alloy core spun yarn. The core spun yarn comprises a core layer and a steel skin layer wrapped at the outer portion of the core layer. The core layer is made of titanium-silicon nitride alloy powder with the particle size being smaller than 3 mm. A net-shaped supporting layer made of steel or iron is arranged between the core layer and the steel skin layer. The titanium-silicon nitride alloy powder comprises the following element components including, by mass percent, 1.0%-2.5% of Al, 5%-15% of N, 2.5%-5.0% of Mn, 1.0%-2.5% of Mg, 40%-60% of Ti, smaller than or equal to 0.1% of P, smaller than or equal to 0.1% of S, 35%-50% of Si and the balance Fe. The alloy powder is added in microalloyed steel in a core spun yarn method, the problem of the low recovery rate can be solved, in addition, the use amount of silicon iron and ferromanganese iron can be saved, application of titanium-silicon nitride and a core spun yarn alloy of the titanium-silicon nitride is developed, and obvious economic benefits are achieved.

Description

technical field [0001] The invention relates to an alloy cored wire. Background technique [0002] my country is a big country of iron and steel, but the quantity and variety of high-quality steel account for a relatively small proportion, which not only cannot meet the requirements of my country's economic construction and national defense construction, but also causes a serious waste of resources, resulting in continuous increase in the cost of iron and steel smelting. The fundamental way to solve the above problems is to adopt the new metallurgical discipline that appeared in the 1970s—microalloying technology, that is, adding a small amount (0.001%-0.1%) of alloying elements to the steel can improve the properties of the steel (such as high Strength, high toughness, good weldability and corrosion resistance) have been significantly improved, while saving precious alloying elements to reduce costs, which is an important sign of the transformation from traditional steel pr...

Claims

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Application Information

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IPC IPC(8): C21C7/00B22F1/00C22C29/16
CPCC21C7/0056B22F1/0003C21C7/0006C22C29/16
Inventor 凌春源
Owner 浙江宝信炉料股份有限公司
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