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本文研制的耐热抗蚀渗铝钢焊条,对于因开坡口而去除坡口表面渗铝层,但焊缝两侧边缘渗铝层仍保留的低碳、低合金渗铝钢焊口,可以从底焊到面。此焊条为 Cr—Mo合金系统,CaO—CaF_2—SiO_2渣系,采取加强脱氧,控制 CaCO_3、CaF_2、SiO_2+TiO_2三者之间的比值等措施,使焊缝边缘渗铝层中的 A1掺入焊缝,以进一步提高焊缝的耐热抗蚀性能。本焊条具有优良的工艺性能、机械性能和抗腐蚀性能。
In this paper, the development of heat-resisting aluminized steel electrode, because of the bevel and remove the bevel surface aluminized layer, but the seam on both sides of the edge of the aluminized layer remains of low-carbon, low alloy aluminized steel weld, you can Welding from the end to the surface. The electrode is Cr-Mo alloy system, CaO-CaF 2 -SiO 2 slag system. Adopt measures such as strengthening deoxidation, controlling the ratio of CaCO 3, CaF 2 and SiO 2 TiO 2, Welds to further improve the heat resistance of the weld corrosion resistance. The electrode has excellent process performance, mechanical properties and corrosion resistance.