Integral castings mold device of large-sized steel ingot clamp

Abstract

The invention discloses a large-scale steel ingot tongs and an integral pouring mold device, which belongs to the technical field of steelmaking steel ingot moulds. Build several layers of refractory brick cushion, lay sand lining on the refractory brick cushion, build a circular refractory brick wall on the sand lining, and lay facade resin sand lining on the inner ring of the circular refractory brick wall. The surface resin sand lining is bonded to the steel ring, the circular steel plate pad is placed in the steel ring, the bottom is attached to the sand lining, the chassis cover is placed on the top of the circular refractory brick wall, the circular steel plate pad is installed in the chassis cover, and the upper chassis The steel ingot mold is installed on the retaining ring, the heightening ring is installed on the steel ingot mold, and the heat preservation cap is installed on the heightening ring, which overcomes the shortcomings that seriously affect the quality of the steel ingot caused by the upward movement of the steel ingot deposition pile; because the tong handle and the steel ingot are integrally cast It avoids the phenomenon that the tong handle falls off or loosens from the steel ingot in the subsequent forging.

Description

technical field [0001] The invention relates to a large-scale steel ingot tong handle integral casting mold device, which belongs to the technical field of steelmaking steel ingot molds. Background technique [0002] At present, with the large-scale development of power stations and steel rolling equipment, the weight of a single piece of shaft forgings such as rotors and backup rolls is also increasing, and the weight of a single piece of steel ingot is also increasing. The forging of large steel ingots has become a problem. The general method of forging a large steel ingot is to first forge the tail of the steel ingot into an easy-to-clamp tongs, and then clamp the steel ingot with the tongs to turn over the forging mold. The disadvantage is that the firing time of the steel ingot is long, the weight of the steel ingot is large, and the cost is high; The method used abroad to solve the problem of overweight forging shaft forging equipment was only found in a Japanese compa...

AI Technical Summary

Problems solved by technology

[0002] At present, with the large-scale development of power stations and steel rolling equipment, the weight of a single piece of shaft forgings such as rotors and backup rolls is also increasing, and the weight of a single piece of steel ingot is also increasing. The forging of large steel ingots has become a problem. The general method of forging a large steel ingot is to first forge the tail of the steel ingot into an easy-to-clamp tongs, and then clamp the steel ingot with the tongs to turn over the forging mold. The disadvantage is that the firing time of the steel ingot is long, the weight of the steel ingot is large, and the cost is high; The method used abroad to solve the problem of overweight forging shaft forging equipment was only found in a Japanese company, but they used the pre-embedded casting method of tongs, that is, forging a steel ingot in advance to form a tongs with a size that meets the forging requirements. It is buried in the chassis, and the upper end is higher than the upper plane of the chassis. When the steel ingot is being poured, the molten steel will wrap the upper end of the tongs so that they are integrated with the steel ingot, creating favorable conditions for the subsequent forging, which is conducive to the smooth removal of the tongs from the chassis. The size error of the tong handle is small; the disadvantage is: the steel ingot deposit pile moves up to the ingot body, which seriously affects the quality of the steel ingot; the tong handle can only be wrapped by the steel ingot, and cannot be integrated with the steel ingot. Falling off or loosening from the ingot, the subsequent forging cannot be continued; steel ingots must be forged and processed into tongs that meet the forging size requirements in advance, which not only wastes a lot of production costs, but also brings difficulties to production organization; large steel ingot tongs cast the whole It is still blank in China, and no reports on this aspect have been found so far

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