Manufacturing method of steel for flux-cored welding wire based on esp wire
A technology of flux-cored welding wire and manufacturing method, which is applied in metal rolling and other directions, can solve the problems of large environmental pollution and high production cost, and achieve the effects of reducing production cost, improving metal yield and reducing energy consumption.
Active Publication Date: 2017-08-08
RIZHAO STEEL HLDG GROUP
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Problems solved by technology
[0006] In view of the above problems, the purpose of the present invention is to provide a method for manufacturing steel for flux-cored welding wire based on ESP wires, so as to solve the problems of high production cost and large environmental pollution in the traditional production of steel for flux-cored welding wire
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[0018] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0019] ESP (Endless Strip Production) line is a new generation of thin slab continuous casting and rolling production line newly built by Arvedi. Since its continuous casting speed can reach up to 7m / min, one pouring time can produce a whole Steel strip, without any cutting head and tail in the middle, so it has full continuous strip steel production, a single continuous casting line can achieve excellent production capacity, large-scale production of large-bandwidth strip steel and high-quality strip steel, from molten steel to hot-rolled coils It has the characteristics of low conversion cost and the most compact production line process layout.
[0020] In order to illustrate the manufacture method based on ESP line production flux-cored wire steel that the present invention provides, figure 1 Shows the manufacturing method process of produ...
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Abstract
The invention provides an ESP (endless strip production) line-based method for manufacturing steel for flux-cored wires. The method comprises steps as follows: a steel-making phase: blast furnace molten iron is sequentially subjected to desulfuration, converter smelting, refining and vacuum circulating degassing to form molten steel; an ESP continuous casting and continuous rolling phase: on the basis of an ESP line, the molten steel formed in the steel-making phase is subjected to continuous casting and continuous rolling to form thin-gauge hot-rolled steel strips; a cooling phase: the thin-gauge hot-rolled steel strips formed in the ESP continuous casting and continuous rolling phase are subjected to laminar cooling; a coiling phase: the thin-gauge hot-rolled steel strips subjected to laminar cooling is coiled to form roll-shaped hot-rolled coils; a pickling phase: the roll-shaped hot-rolled coils coiled in the coiling phase are pickled; a leveling and re-coiling phase: the pickled hot-rolled coils are leveled and re-coiled, and the steel for the flux-cored wires is obtained. With the adoption of the method, energy consumption can be reduced, the metal yield can be increased, and the production cost can be reduced.
Description
technical field [0001] The invention relates to the technical field of metallurgy, and more specifically, relates to a method for manufacturing steel for flux-cored welding wires based on ESP wires. Background technique [0002] Flux-cored wire, also known as tubular wire, is a type of consumable material specially used for welding in powder-cored wire. Flux-cored welding wire is composed of metal sheath and powder core. The material of the sheath can be low carbon steel, stainless steel, aluminum, copper, zinc and other materials with certain ductility. The material of the core can be used in a wide range according to the needs of the product. Various types of metal or non-metal powders, mineral powders, chemical products and nano-materials can be selected. [0003] At present, the main raw material for the production of steel for flux-cored welding wire is cold-rolled steel strip, which is generally formed by continuous rolling of cold-rolled steel strip on a forming mach...
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IPC IPC(8): B22D11/00B21B1/46
CPCB21B1/463B22D11/00
Inventor 苏旺谢国海王福良刘宏志朱经涛于长江严进宝张保菊张展雷谢基表喻尧
Owner RIZHAO STEEL HLDG GROUP