Alloy cored wire application:
The cored wire is to crush various additives (deoxidizer, desulfurizer, modifier, alloy, etc.) to be added to molten steel or molten iron into a certain particle size, and then use cold-rolled low carbon steel strip to include it into a Any length of composite material.
cored wire technology is an outside refining method developed on the basis of jet metallurgy technology in the 1980s. The cored wire is suitable for steelmaking and casting.
Used in steelmaking can purify the shape of steel inclusions, improve the castability of molten steel, improve the performance of steel, and can significantly increase the yield of alloys, reduce alloy consumption, reduce steelmaking costs, and have significant economic benefits.
Core-spun wire feeding technology Alloy core wire technology (wire feeding technology) High silicon-magnesium ratio alloy spheroidized core wire manufacturing process High-magnesium alloy cored wire core agent and core wire production process Alloy core wire technology (wire feeding technology) Technology) The development and application of magnesium alloy materials. The development and application of molten steel calcium treatment technology. New technology of blast furnace tuyere feeding line is easy to blast furnace erosion. Calcium treatment: an important method for improving the shape of inclusions in near-net continuous casting
Features of cored wire:
1. It is beneficial to adjust and control the content of easily oxidized elements and trace elements, which can greatly increase the alloy yield, reduce the smelting cost, shorten the smelting time, and control the composition.
2. It plays the role of purifying molten steel and partially changing the nature and shape of inclusions, improving the quality of molten steel and improving the casting state.
3. There are two types of cored wires: internally drawn and externally drawn. The mechanical equipment required for feeding the wire is simple and reliable, and the floor space is small. In particular, the internally drawn cored wire can be used in narrow places.
The classification of cored wire:
1. Core-spun wires are divided into single and composite core-spun wires according to the composition of the core material.
2. A single cored wire is a core wire coated with an alloy powder or non-metallic powder.
3. The composite cored wire is a core wire made of two or more alloy powders or non-metallic powders and one alloy powder and non-metallic powders.
Silicon calcium cored wire, titanium iron cored wire, ferrosilicon cored wire, ferromanganese cored wire, boron iron cored wire, silicon manganese calcium cored wire, seamless pure calcium wire, solid pure calcium wire, double Layer solid pure calcium wire, solid calcium aluminum wire, solid silicon calcium wire, rare earth silicon cored wire, rare earth silicon magnesium cored wire, rare earth magnesium ferrosilicon cored wire, rare earth magnesium silicon calcium cored wire, rare earth silicon Barium cored wire, mixed rare earth metal cored wire, silicon calcium barium cored wire, silicon aluminum barium cored wire, silicon calcium barium aluminum cored wire, metal magnesium cored wire, iron calcium cored wire, calcium iron cored wire Wire, pure calcium cored wire, aluminum calcium cored wire, calcium aluminum iron cored wire, carbonized wire, high magnesium wire, sulfur cored wire, sulfur iron cored wire, carbon cored wire, inoculant cored wire , Nodulizer cored wire, etc.
Technical requirements for cored wire:
The steel strip used for cored wire should meet the requirements of GB/T716, GB/T13237, YB/T5059.
The core powder used for the cored wire shall comply with GB/T2082.1, GB/T2272, GB/T2449, GB/T3282, GI3/T3795, GB/T4138, GB/T4153, GB/T4864, GB/T5682, YB/T067 , YB/T5051, YB/T5299, YB/T5308, YB/T5358.
Core-spun wire packaging:
Cable packing: horizontal and vertical cable arrangement. There are two packaging methods: internal tapping and external release.
The alloy cored wire adopts the wire feeding method, and the adding speed can be set according to the diameter of the alloy cored wire and the melting point of the wire material. The alloy cored wire is inserted into the molten iron or molten steel vertically and steadily with the wire feeding machine, at the ideal depth It melts and undergoes physicochemical reactions, avoids the reaction of added elements with air and slag, improves the yield of elements, plays the purpose of refining and casting to change inclusions, alloying and composition improvement, and improves the quality of cast iron and cast steel It has a significant effect on reducing the cost of casting steel making and improving the economic benefits of cast iron and cast steel.
Storage and transportation of cored wire:
The cored wire should be stored in a dry, non-corrosive gas warehouse. For long-distance shipments, moisture-proof measures should be adopted.
Marking and quality certificate of cored wire:
Each cored wire reel must be attached with a non-fading label indicating the name of the cored wire, standard brand, main element content, size, core wire weight, core powder quality, production unit, batch number, and production date. A certificate of quality is provided with the batch.