辊压机辊面的堆焊修复方法

Welding restoration of roller surface

在分析辊压机辊面磨损机理的基础上介绍了辊面堆焊修复的新材料。实践证明,新研制的 ZD1ZD2ZD3ZD310系列 , , ,埋弧堆焊无缝药芯焊丝、 气保护焊丝及 ZD3ZD310TM 65焊条等焊接材料,完全可替代进口材料进行辊面的堆焊修复。同 CO2 ,,时,介绍了依据不同磨损状况可采用的辊面焊接工艺和焊接效果。其中,拆下辊子进行埋弧自动焊修复的辊面使用效果最好,辊子使用寿命均在 6000h 以上;若现场修复,焊接工艺和选材适宜,也可获得良好的修复效果。

On base of analysing theory of roller surface abrasion, new materials of welding agent are introduced.Practice showes that new developed welding agents such as ZD1,ZD2,ZD3,ZD310 serial weldless medcine core welding wire which applying in submerged-arc bead welding,CO2 gas shielded welding wire and ZD3,ZD310,TM65 welding rod can totally replace material imported when restoring roller surface.Meanwhile,welding process and effect that aming different abrasion level are also introduced. Among those, the best process is pulling down the roll, using submerged-arc automatical weld. The average lifespan of roll restoring using this process can be up to 6 000 h. If restoring on the spot, well effect can also be obtained when using proper welding process and agent .