Production process of continuous-casting tandem-rolling coiled sheet of medium thick plate
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A technology of continuous casting and rolling, production process, applied in the direction of metal rolling, manufacturing tools, metal rolling, etc., can solve problems such as weak strength of rolling mill transmission system, aging of power supply system configuration, limitation of variety development ability, etc., to achieve shortened roll The transportation time is shortened, which is conducive to stable operation and improves the effect of mixed crystal defects in the edge structure.
Inactive Publication Date: 2006-10-04
ANGANG STEEL CO LTD
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The disadvantages are that the production line uses a lot of old equipment, the power of the finishing rolling motor is small, the speed of the roller table is low, the water supply capacity is insufficient, the strength of the transmission system of the rolling mill is weak, and the configu
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[0033] The invention is applied to the production process of continuous casting and rolling of 2150 medium-thick slabs. The molten steel passes through three 250t top-bottom composite blowing converters, two molten iron desulfurization and slag removal stations, two LF ladle refining furnaces, and one RH-TB Vacuum treatment device, molten steel can be refined through LF ladle refining furnace and / or RH-TB molten steel vacuum treatment device before pouring.
[0034] The main features of the continuous casting machine of the present invention are straight crystallizers with rounded corners and beveled corners, continuous bending, continuous straightening, hydraulic vibration, etc.;
[0035] The structure of the crystallizer is a crystallizer for slab continuous casting in which the four corners of the inner cavity are rounded at right angles or rounded or right beveled. The structure of the right-angle mold is a traditional slab mold, that is, the wide side wall and two narrow ...
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Abstract
The invention discloses a cut deal blank joint continuous casting and rolling coil manufacturing technique, which is characterized by the following: the conticaster is fillet-bevel crystallizer; the conticaster adopts double-machine four-flow, four-flow in one technique, straight-rolling heat-feed heat-transfer technique and straight-rolling technique; the big mill adopts fore-and-aft edger roll device; the form is adhesion-upper drive-roller; the finishing mill group adopts work roller trending-running and bend bar device; the fine rolling uses raising speed rolling, which has maximum speed at 22.8m/s and roller way speed at 5.89m/s; the front of finishing mill group installs edge-part calorifier, multistage coarse, fine adjusting-valve group, which adopts cool three-stage laminar flow chilling control technique, adds heat cover on delivery roll table, reduces the temperature dropping of intermediate area blank and head-to-tail temperature difference; the automatic system is three-level computer-controlled system. The invention improves the device, manufacturing technique, which improves the product quality.
Description
technical field [0001] The invention belongs to the technical field of metallurgical metal processing, and in particular relates to a production process for continuous casting and rolling of medium-thick slabs. technical background [0002] At present, the continuous hot-rolled strip steel production technology is divided into traditional technology, CSP technology, traditional production process through converter steelmaking, continuous casting of 200mm ~ 250mm thick slab, flame cutting, walking furnace heating, descaling , Rough rolling, shearing, descaling, finishing rolling, laminar cooling, coiling and uncoiling. It has the advantages of complete varieties, high output, flexible production organization, and large product compression ratio. Its main disadvantages are heavy weight of casting machine equipment, long rolling line, high plant building, large land occupation, large equipment investment, large slab warehouse, High energy consumption; CSP production process is...
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