摘要
应用拖偶测温法和加热炉热平衡测定等试验方法分析评价了攀钢轨梁厂现行的加热炉热工制度和钢轨钢的加热工艺。在此基础上,优化了钢轨钢加热工艺、完善了加热炉热工制度。经实施应用,钢坯加热温度波动由原来的±40℃减至±20℃,断面温差由65℃减至45℃以内,钢坯氧化烧损率由1.75%降至0.92%以下,钢轨脱碳层深度由0.35～0.82mm降至0.2～0.5mm,钢轨产量由40万t/a增至50万t/a。
Current thermal characteristics of push-type furnace and heating technique of billet for heavy rail was evaluated based on the experiments of embedding thermal couples and determining energy balance. On the basis, the heating technique and the thermal schedule were optimized. The productive operation shows that the fluctuation of billet temperature is lowered from ±40 ℃ to ±20 ℃, difference in billet profile temperature is lessened from 65 ℃ to 45 ℃, the loss of metal oxidation is reduced from 1.755% to 0.92%, and the decarburization depth of rails is decreased from 0.35～0.82 mm to 0.2～0.5 mm, while, the annual production of heavy rail is increased from 400,000 tons to 500,000 tons.
出处
《钢铁钒钛》
CAS
北大核心
2003年第1期33-38,共6页
Iron Steel Vanadium Titanium
关键词
热轧钢轨钢
加热技术
热工制度
优化
rail steel
heating technology
thermal schedule
optimization
effect
