Medium and large casting roller ramming mould heating and feeding method and device

Abstract

The invention relates to a medium and large casting roller ramming mould heating and feeding method and device and belongs to the technical field of casting of metallurgy rollers. According to the technical scheme, a longitudinal axis of a roller body mould, a longitudinal axis of an upper roller neck mould and a longitudinal axis of a lower roller neck mould are coincided and positioned on the same longitudinal straight line; the upper roller neck mould and the roller body mould are separated, the upper roller neck mould is cylindrical and has a taper narrowed from bottom to top, an induction heating coil which is a multi-turn coil is arranged outside the upper roller neck mould, the induction heating coil has the same taper with the upper roller neck mould, and diameters of the upper end and the lower end of the upper roller neck mould are matched with the diameter of the upper roller neck of a roller; the upper roller neck mould is rammed and moulded by adopting a refractory material. The medium and large casting roller ramming mould heating and feeding method and device complete feeding by adopting an induction heating and heating manner, feeding is full, and defects are reduced; amount of metal liquid poured during casting is obviously less than the amount of the metal liquid required by the background art, massive metal liquid is saved, smelting cost is reduced, and turning amount and energy consumption are obviously reduced.

Description

technical field [0001] The invention relates to a large and medium-sized casting roll ramming mold heat supplementing and shrinkage method and device, belonging to the technical field of metallurgical roll casting. Background technique [0002] Rolls are important tools and consumables in the steel rolling process in the metallurgical industry. Rolls can be divided into cast rolls and forged rolls, as well as cast iron rolls and cast steel rolls. According to the usage, it is divided into: initial rolling roll, intermediate rolling roll and finishing rolling roll; according to the rolling product variety, it is divided into: strip rolling roll, rod and wire rolling roll, section steel rolling roll; according to the roll material, it is divided into steel rolling roll, ductile iron rolling roll and semi-steel rolling rolling roll. , High speed steel roll, bainite roll and so on. For cast rolls, those weighing more than 5 tons are called medium rolls, and those weighing more ...

AI Technical Summary

Problems solved by technology

The roll blank must undergo the following processing to become a finished roll: first, demoulding, because of the riser, demoulding may be difficult, and even individual rolled rolls that have been cast are scrapped; then the riser end is cut off with a cutting knife, and the remaining roll neck is In general, it is turned layer by layer to the finished product size, and the part turned off in the roll neck section is several times larger than the roll neck section, resulting in waste of turning tools, machine tools, man-hours, energy, etc.

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