Results show that fracture of the slab originates from overfiring of the slab due to high temperature in certain local area of the walking beam furnace and in light of the result proper counter measures are accordingly put forward 結(jié)果表明,板坯斷裂是由于步進(jìn)爐中局部溫度過高產(chǎn)生的過燒現(xiàn)象,根據(jù)分析結(jié)果提出了相應(yīng)的改進(jìn)措施。