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结构钢焊条的选用 1.结构钢焊条的选用原则结构钢焊条的选用,通常是根据钢板的化学成分、机械性能、抗裂性能等要求,同时还应从焊按结构形状,工作条件、受力情况和焊接设备等方面,进行综合的考虑,必要时还需进行可焊性试验来确定焊条和采取必要的工艺措施。 (1)碳钢和普低钢的焊接一般按照钢材的强度等级来选用相应强度等级的焊条; (2)同一强度等级的酸性焊条或碱性焊条的选用主要取决于焊件的结构形式(简单或复杂)、钢板厚度(刚度大或小)、工作条件(静载荷或动载荷)、钢材的可焊性和抗裂性能等方面,通常对要求塑性好、冲击韧性高、低温性能好、抗裂能力强者,
Structural steel electrode selection 1. The principle of selection of structural steel electrode Structural steel electrode selection, usually based on the chemical composition of the steel, mechanical properties, crack resistance and other requirements, but also from the welding according to the structure and shape, working conditions, stress conditions And welding equipment, comprehensive consideration, if necessary, the need for solderability test to determine the electrode and take the necessary technical measures. (1) The welding of carbon steel and general low-grade steel is generally based on the strength level of steel to choose the corresponding strength level of the electrode; (2) the same strength level of acidic or alkaline electrode selection depends mainly on the structure of the weldment (simple Or complex), plate thickness (large or small stiffness), working conditions (static or dynamic load), steel weldability and crack resistance, etc., usually require good plasticity, high impact toughness, low temperature performance, resistance Cracking ability,