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熔化咀电渣焊规范与一般焊丝电渣焊规范略有不同。前者可以看作是干伸长度等于零的焊丝电渣焊,和机咀断面等于电极断面并具有焊接速度向熔池给送的电极电渣焊,这两种焊接规范的迭加。熔化咀电渣焊的焊接速度可以按下式确定: 式中:V_——焊丝给送速度(公尺/小时); ∑F_——焊丝总裁面积(公厘~2); F——焊着金属截面积(公厘~2); F——机咀截面积(公厘~2)。母材厚度较小时,焊丝给送速度可以按焊缝不产生热裂缝的最大容许速度来选择,而母材厚度较大时,还
Welding Tsui Electroslag welding specifications and general welding wire electroslag welding specifications are slightly different. The former can be seen as dry elongation equal to zero wire electroslag welding, and machine Tsui section is equal to the electrode cross section and has a welding speed to the bath to send the electrode electroslag welding, superposition of these two welding specifications. Melting Tsui ESR welding speed can be determined by the following formula: Where: V _ - wire feeding speed (meters / hour); ΣF _ - wire president area (mm ~ 2); F - welding Metal cross-sectional area (mm ~ 2); F - machine Tsui cross-sectional area (mm ~ 2). When the base metal thickness is small, the wire feeding speed can be selected according to the maximum allowable speed at which the welding seam does not generate hot cracks, and when the base metal thickness is large