去应力炉炉内大张力改造及应用  

Transformation and Application of High Tension in the Stress Relief Furnace

作　　者：王宝柱 Baozhu Wang(Shanghai Shida Precision Stainless Steel Co.,Ltd.,Shanghai 201100)

机构地区：[1]上海实达精密不锈钢有限公司,上海201100

出　　处：《新疆钢铁》2024年第3期164-166,共3页Xinjiang Iron and Steel

摘　　要：厂内有一台不锈钢卧式马弗管式连续去应力退火炉,生产线设计生产带钢厚度及宽度范围为0.06 mm~0.6 mm*620 mm,最高炉温为800°,最高速度15 m/min,炉内最大张力50 Kg~250 Kg。后因为带钢表面橘皮的质量缺陷问题,工艺提出通过增大炉内的张力,带钢在通过高温炉区的状态下将带钢表面橘皮拉平。要求炉内张力值能够做到2500 Kg,同时还要能够保留原来的小张力生产(50 kg)。炉前因设置有跳动辊,且最大张力设计为250 kg,无法适应现在大张力的要求。同时炉前及炉后的张力辊因工艺张力要求的改变,原张力辊电机功率过小,无法提供所需要的大张力。因此需要对炉前及炉后的张力辊电机进行功率增大,同时将炉前跳动辊改为带张力计量和跳动功能的新型测量装置,以确保炉内张力的精确度。既能用小张力跳动辊控制,也能够用大张力直接控制,使带钢在高温段退火时消除上述的质量缺陷。改造完成后满足了上述的工艺要求,解决了带钢表面缺陷问题。There is a stainless steel horizontal muffle tube continuous stress relief annealing furnace in the factory.The production line is designed to produce strip steel with a thickness and width range of 0.06 mm~0.6 mm*620 mm,a maximum furnace temperature of 800℃,a maximum speed of 15 m/min,and a maximum tension of 50 Kg~250 Kg inside the furnace.Due to the quality defect of orange peel on the surface of the strip steel,the process proposed to increase the tension inside the furnace to flatten the orange peel on the surface of the strip steel while passing through the high-temperature furnace zone.It is required that the tension value inside the furnace can reach 2500 kg,while also being able to maintain the original low tension production(50 kg).There are jumping rollers installed in front of the furnace,and the maximum tension is designed to be 250 kg,which cannot meet the current high tension requirements.At the same time,due to changes in process tension requirements,the original tension roller motor power is too low to provide the required high tension for the tension rollers in front and behind the furnace.Therefore,it is necessary to increase the power of the tension roller motors in front and behind the furnace,and at the same time replace the jumping rollers in front of the furnace with a new measuring device with tension measurement and jumping function to ensure the accuracy of the tension inside the furnace.It can be controlled by a small tension jumping roller or directly controlled by a large tension,eliminating the quality defects mentioned above during high-temperature annealing of the strip steel.After the renovation was completed,the above process requirements were met and the problem of surface defects on the strip steel was solved.

关 键 词：配重式跳动辊 张力模式控制切换 炉内张力控制 直接张力控制 

分 类 号：TG155.1[金属学及工艺—热处理]