导板错位对荒管的质量有很大影响,是无缝钢管生产之大忌。 1985年7～8月份,我厂无缝车间穿轧荒管时,翘皮管高达77支/班,严重影响了产品质量。现场观察发现,每穿4～5根荒管后,下导板面便残存一块坚硬、锋利的氧化铁 Guide plate dislocation on the quality of wasteland has a great impact, is the taboo of seamless steel pipe production. From July to August 1985, when the seamless workshop was rolled in our factory, the warp pipe was up to 77 pieces per class, seriously affecting the product quality. On-site observation found that after wearing 4 ~ 5 waste pipe, the lower guide plate surface will remain a hard, sharp iron oxide