Pretreatment production line

Abstract

The invention relates to a heat treatment production line, and particularly relates to a multifunctional pretreatment production line. The pretreatment production line sequentially comprises a fixed loading table, transmission equipment, a first heat furnace, quenching cooling equipment, a second heat furnace, a high-temperature tempering furnace, a low-temperature tempering furnace, air-cooling equipment, an unloading table and an upper computer control system which are arranged in a straight line. According to the pretreatment production line, all the above devices are arranged in a straight line, parts can be transferred among different devices by transferring a forklift, startup of devices is controlled by the upper computer control system combined with originally developed software and the control cabinet of each device, and the production efficiency can be greatly improved due to high automatic degree.

Description

technical field [0001] The invention relates to a heat treatment production line, in particular to a multifunctional pretreatment production line. Background technique [0002] Most parts will be pre-treated before final heat treatment or machining, such as nitriding, quenching and tempering treatment before carburizing, because after nitriding, high-hardness nitrides will be formed on the surface of the parts, making the surface of the mold have a high hardness , strength and wear resistance. If it is not quenched, the strength and hardness of the core of the mold are low, which cannot meet the requirements for use. Moreover, when there is a large hardness difference between the infiltrated layer and the core, the infiltrated layer lacks the necessary hardness support, and the infiltrated layer is easily peeled off. Therefore, it is necessary to quench and temper the parts before nitriding to obtain good comprehensive mechanical properties. The commonly used pretreatment...

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Problems solved by technology

[0003] However, the existing pretreatment often does not form a production line. After one process is completed, the workpiece is transferred to other equipment by driving, and the distance between each equipment may be relatively long, which will cause heat loss during the transfer process. , leading to a decline in the quality of heat treatment, and a large amount of heat will be lost to the workshop, resulting in an increase in the temperature of the workshop, affecting the working environment, and the production efficiency is relatively low; personal injury

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