Local quenching device for hot-rolled medium plate production

Abstract

The invention discloses a local quenching device for hot rolling middle plate production, and belongs to the technical field of metal processing. In order to solve the problems that equipment is inconvenient to load and unload, poor in safety and poor in adaptability, a to-be-processed plate can be guided above a quenching worktable by a feeding conveying belt, is limited by a positioning clamping plate, is sunk into a groove in the upper end of the quenching worktable, and can be conveniently positioned; the quenching furnace is driven to descend, so that the fixed disc body and the liquefied gas flaming plates are close to a to-be-machined plate, different liquefied gas flaming plates can be opened and closed according to requirements, a liquefied gas flaming gun can carry out a local quenching process on different positions of the to-be-machined plate, a second electric cylinder is lengthened or shortened, and the position and angle of a machined part limiting plate are adjusted; therefore, rolling wheels on the outer surface of the machined part limiting plate can be matched to drive the machined plate to move, the plate can be conveniently moved to the position above the discharging conveying belt, and discharging work of the locally quenched plate is facilitated.

Description

technical field [0001] The invention relates to the technical field of metal processing, in particular to a partial quenching device for hot-rolled medium plate production. Background technique [0002] Hot rolling is relative to cold rolling, cold rolling is rolling below the recrystallization temperature, and hot rolling is rolling above the recrystallization temperature. In the hot rolling process, the workpiece needs to be quenched. Quenching is to dip the hot workpiece heated to a certain degree into the medium to meet the requirements. In the past, the image of craftsmen called quenching as dipping fire. Because the quenching process is widely used, the reading method has also spread. The purpose of quenching is to transform supercooled austenite into martensite or bainite to obtain martensite or bainite structure, and then cooperate with tempering at different temperatures to greatly improve the strength, hardness and wear resistance of the steel. properties, fatigu...

AI Technical Summary

Problems solved by technology

[0005] 1. It is inconvenient to load and unload the plate before and after the quenching process, and the positioning effect of the plate is general

[0006] 2. In the long-term work of t

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