A pillar parts continuous thermal treatment method and transfer device

Abstract

The invention relates to a cylindrical part continuous heat treatment method and a transfer device. The method includes: straddling a cylindrical part on supporting rods, hinging a connecting rod with one of the supporting rods and fixing the connecting rod to the other detachably, or fixing both ends of the connecting rod to the two supporting rods respectively, performing horizontal limiting by a limiting structure, when a previous furnace cylindrical part is transferred out of a heating furnace and before the furnace temperature decreases, conveying a to-be-transferred cylindrical part into the furnace, shifting the connecting rod to separate the two supporting rods, letting the part slip off to a part supporting frame, shifting out the supporting rods, and heating the part; after completion of the part heating and before decrease of the furnace temperature, shifting the heating completed part to a cooling frame by the transfer device, shifting the connecting rod to separate the two supporting rods, letting the part slip off to the part supporting frame, shifting out the supporting rods, and cooling the part; and repeating the steps to realize continuous heat treatment of the part. The method and device provided by the invention improve the heat treatment efficiency, fully utilize the residual temperature of the furnace, shorten the heating time, and reduce the electric energy loss.

Description

technical field [0001] The invention relates to a method for continuous heat treatment of cylindrical parts and a transfer device specially used for the method. Background technique [0002] Cylinder parts include solid cylinder parts and hollow cylinder parts. Cylinder parts are hollow cylinder parts. Cylinder parts are the core components in high-voltage switch hydraulic presses, and their mechanical properties are high. Before processing, it is necessary to adopt the method of rapid cooling after normalizing to ensure that it has good mechanical properties. At present, the following two methods are generally used for normalizing and cooling the cylinder parts: 1) Use the trolley furnace to heat the stacked cylinder parts to the normalizing temperature, and then use the traction mechanism to drive the trolley along the furnace The bottom track moves the parts out, and the fan is used to cool them quickly; in this way, when the parts are cooled, the parts are placed densel...

AI Technical Summary

Problems solved by technology

At present, the following two methods are generally used for normalizing and cooling the cylinder parts: 1) Use the trolley furnace to heat the stacked cylinder parts to the normalizing temperature, and then use the traction mechanism to drive the trolley along the furnace The bottom track moves the parts out, and the fan is used to cool them quickly; in this way, when the parts are cooled, the parts are placed densely, the overall cooling speed is slow, and the cooling speed of different parts is different, the cooling effect is not good, serious Affect the mechanical properties of the parts; 2) Use a trolley to heat the stacked cylinder parts to the normalizing temperature. After heat preservation, the trolley will move the parts out along the furnace bottom track through the traction mechanism. The car hoisted the parts of the whole furnace block and transferred them to the special normalizing cooling frame, and after the parts were spread out, the fan was used to cool them quickly. Although this method improved the problem of slow and uneven cooling speed, it This method still has the following disadvantages: first, the use of iron chains to hang the cylinder for transfer, there is a danger of the cylinder falling from a high altitude; second, when the iron chain is used to hang the cylinder, the operator needs to be close to the high-temperature parts , it may burn the operator; third, when continuous production is required, it is necessary to wait until the furnace temperature drops to an appropriate temperature before it can be close to the furnace, which requires a lot of waiting time for cooling down, and the production efficiency is low; fourth, it cannot be well The use of the residual temperature of the furnace for continuous production results in a certain amount of energy waste

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