High-efficiency tempering production method for thin tempered plate

Abstract

The invention relates to a high-efficiency tempering production method for a thin tempered plate. The production method comprises the following specific steps that a group of tempered thin plates withstraightness of less than or equal to 12mm / m, no side waves and the same specification and process are selected; before the tempered thin plates enter a furnace, the selected tempered thin plates arealigned and stacked end to end, and then the two sides of the stacked tempered thin plates are aligned through a centering device; the aligned laminated plates serve as a whole piece of steel, the heating coefficients, the in-furnace time and the heat preservation time of the laminated plates are set, and the heating coefficients are set according to the thickness of the laminated plates; and after the parameters are set, the laminated plates are fed into a heat treatment furnace to be tempered, and a certain safety distance is kept between the two laminated plates which are fed into the furnace in sequence. The method has the advantages that a plurality of tempered thin plates with the same specification and the same process are stacked together to be fed into the furnace for tempering,so that the thickness of the whole steel plate is increased, the safe distance for tempering the steel plate is shortened, and the tempering production efficiency of the thin steel plate in unit timeis improved.

Description

technical field [0001] The invention relates to the technical field of tempering technology for thin-gauge steel plates, in particular to a high-efficiency tempering production method for thin-gauge tempered plates. Background technique [0002] For the tempered steel plate with the same thickness and the same process, the production efficiency of the roller hearth furnace depends on the time of the steel plate in the furnace and the safety distance between the steel plates. Among them, the principle of setting the steel plate tempering time in the furnace is that the time in the furnace = heating coefficient * steel plate thickness + holding time, where the heating coefficient depends on the characteristics and specifications of the steel type, and the holding time mainly depends on the characteristics and thickness of the steel type. The difference in holding time is not a linear relationship, sometimes the thickness doubles but the holding time does not change. Especiall...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of long time in the furnace, large safety distance and low tempering efficiency of existing thin-gauge steel plates, and to provide a high-efficiency tempering production method for thin-gauge tempered plates, which adopts the method of thin plate splicing , not only can increase the average thickness of the tempered plate, shorten the furnace time of the steel plate, but also shorten the safety distance between the steel plates, and improve the heat treatment efficiency per unit time

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