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随着乡镇工业的发展,乡镇热处理企业也随之兴起,笔者最近深入部分乡镇热处理企业,发现了许多问题,在这里简单阐述一下,以引起人们的深思。 1.热处理设备陈旧,能量浪费大某一地区四个乡镇热处理企业中,共有各类设备14台,它们的任务来源都是乡镇企业的产品。在这14台加热设备中,除高频加热设备和辉光离子渗氮炉是我国近年生产的设备外,其它都是50～60年代被某些单位淘汰的设备。这些设备,设计落后,没有很好的保温材料与绝热层,加热效率很低。就以一台45kW的箱式炉来说,加热至850℃需要5个多小时,与新型的箱式加热炉相比,多耗电40%左右。这四个热处理企业中有九台设备总工率达
With the development of township and town industries, township heat treatment enterprises have also risen. Recently, some of the township heat treatment enterprises were discovered by the author and many problems were discovered. I will briefly explain here to arouse people’s deep consideration. 1. Outdated heat treatment equipment, waste of energy A large area of four towns in heat treatment companies, a total of 14 sets of various types of equipment, their task source is the township enterprises products. In this 14 heating equipment, in addition to high-frequency heating equipment and glow plasma nitriding furnace is produced in recent years, our equipment, the other are 50 to 60 years by some units out of equipment. These devices, behind the design, there is no good thermal insulation materials and insulation, heating efficiency is very low. In a 45kW box furnace, heating to 850 ℃ takes more than 5 hours, compared with the new box-type heating furnace, consumes about 40% more electricity. Nine of these four heat treatment companies have a total work rate of up to nine devices