硬质合金滑块在轧钢加热炉中的应用

Application of Hard Alloy Slider in Heating Furnace for Rolling Steel

在蓄热式加热炉中 ,采用 4Cr2 5Ni2 0Ti硬质合金滑块作为滑轨。为了解决异种钢焊接、工作环境恶劣、焊接变形严重等问题 ,尽量减小焊接变形 ,保证焊接质量 ,采用局部加热焊接及焊后变形法 ,滑轨在炉内不平行放置。检测发现 ,无焊接缺陷 ,消除了钢坯黑印现象 ,满足了生产要求。

The hard alloy 4Cr25Ni20Ti is used as sliding rail in the regenerative reheating furnace. For solving these problems included welding difference steel kind, adverse worki ng circumstances and seriously welding deformation, etc, some active measures, such as reducing w elding deformation, ensuring welding quality,adopting heating welding on partial positi on and unparallel rank for sliding rail in the furnace, must be applied. Through inspection, disco ver that welding defect and black mark on bloom are elecminated and it can meet the needs of pro duction.