山东冶金
山東冶金
산동야금
SHANDONG METALLURY
2014年
6期
39-40,43
,共3页
杨超%宋中华%丁翠娇%欧阳德刚%韩斌
楊超%宋中華%丁翠嬌%歐暘德剛%韓斌
양초%송중화%정취교%구양덕강%한빈
明火式常化炉%低温回火%工艺能力诊断%测温
明火式常化爐%低溫迴火%工藝能力診斷%測溫
명화식상화로%저온회화%공예능력진단%측온
naked-flame normalizing furnace%low-temperature tempering%process ability diagnosis%temperature measurement
为考察明火式常化炉(设计回火温度250~650℃)的低温回火功能,采用炉内钢板黑匣子测温的方法对该常化炉150℃的回火能力进行了诊断。结果表明,低温状态下该常化炉炉膛内炉气温度分布不均匀,边部炉温高于中部,且波动较大,宽度方向炉温均匀性较差;试验板坯加热温度厚度方向温差控制在±2℃,长度方向温差控制在±5℃,沿宽度方向温差则达20~28℃,边部加热温度明显高于中部。
為攷察明火式常化爐(設計迴火溫度250~650℃)的低溫迴火功能,採用爐內鋼闆黑匣子測溫的方法對該常化爐150℃的迴火能力進行瞭診斷。結果錶明,低溫狀態下該常化爐爐膛內爐氣溫度分佈不均勻,邊部爐溫高于中部,且波動較大,寬度方嚮爐溫均勻性較差;試驗闆坯加熱溫度厚度方嚮溫差控製在±2℃,長度方嚮溫差控製在±5℃,沿寬度方嚮溫差則達20~28℃,邊部加熱溫度明顯高于中部。
위고찰명화식상화로(설계회화온도250~650℃)적저온회화공능,채용로내강판흑갑자측온적방법대해상화로150℃적회화능력진행료진단。결과표명,저온상태하해상화로로당내로기온도분포불균균,변부로온고우중부,차파동교대,관도방향로온균균성교차;시험판배가열온도후도방향온차공제재±2℃,장도방향온차공제재±5℃,연관도방향온차칙체20~28℃,변부가열온도명현고우중부。
In order to investigate the low-temperature tempering ability of a naked-flame normalizing furnace in one plate rolling mill which was designed to have the medium and high temperature tempering ability from 250 ℃ to 650 ℃, the temperature measurement test with“black box”on the steel plate in the furnace under 150 ℃ temperature was made. The experimental results showed that under the condition of low furnace temperature condition, the gas temperature in furnace distribute unevenly, the side gas temperature is higher than the middle gas temperature and fluctuate sharply. The temperature difference of the steel plate in furnace is under ±2 ℃ along thickness direction, under ±5 ℃ along length direction and under 20-28 ℃ along width direction. The side part temperature of the plate is obviously higher than the middle part temperature of it.