Titanium-silicon nitride alloy cored wire

Abstract

The invention relates to an alloy cored wire and particularly relates to a titanium-silicon nitride alloy cored wire comprises a core layer and a steel sheet layer wrapped outside the core layer, wherein the core layer is made of titanium-silicon nitride alloy powder with particle size being smaller than 3mm; a net-shaped support layer made of steel or iron is arranged between the core layer and the steel sheet layer; the titanium-silicon nitride alloy powder is prepared from elements in percentage by mass. According to the titanium-silicon nitride alloy cored wire, the alloy powder is added into micro-alloyed steel by a method using the cored wire, so that the problem of low recovery rate can be solved; consumption of ferrosilicon and ferromanganese can also be reduced; the application of titanium-silicon nitride and cored wire alloys thereof can be developed; the titanium-silicon nitride alloy cored wire has remarkable economic benefit.

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...