简要说明：Oxford牛津焊材牌的上海镍合金焊丝ERNiCrMo-10报价产品：估价：电议，规格：*****，产品系列编号：******

　　ERNiCrMo-10镍合金焊丝ERNiCrMo-10镍合金焊丝         

镍合金焊丝                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         国际牌号                         成分                         SPECIFICATION AWS 5.14                         C                         Mn                         Si                         Fe                         Cr                         Mo                         Ni                         S                         P                                                                                                                                                                                                                                                                                   ERCuNi(AWS A5.7)                                     0.75                         0.10                         0.55                                                 31.0                                     0.006                         ERNiCu-7                         0.05                         3.45                         0.77                         0.40                                                 65.2                         0.002                         0.009                         ERNiCrFe-5                         0.03                         0.45                         0.20                         7.5                         16.2                                     72.9                         0.002                         0.005                         ERNiCr-3                         0.03                         2.85                         0.22                         1.1                         20.4                                     72.9                         0.001                         0.003                         ERNiCrCoMo-1                         0.06                         0.20                         0.11                         0.75                         21.8                         9.05                         BAL                         0.001                         0.005                         ERNiCrMo-10                         0.008                         0.20                         0.04                         3.1                         21.5                         13.5                         BAL                         0.002                         0.005                               镍及镍合金焊条的选用和使用 （1）镍及镍合金焊条的选用原则镍及镍合金焊条主要根据被焊母材的合金牌号、化学成分和使用环境等条件选用。焊条的熔敷金属的主要化学成分应与母材的主要成分想接近，以保证焊接接头的各项性能与母材相当。但考虑到焊条在电弧中的合金损失，在焊条中还应含有一些其他元素，以改善焊缝性能或焊接工艺性能。 若采用相同成分的焊条达不到设计要求或者没有合适的类似合金成分的焊条时，则推荐选用性能高一级别的焊条，以保证焊缝的使用性能不低于母材。  （2）镍及镍合金焊条的使用注意事项  ①母材的准备：焊前应认真清除母材表面的油污、油漆、灰尘等脏物。 ②为防止气孔，采用短弧焊接。  ③采用较小焊接电流，焊前不预热，保持较低道间温度（＜150℃），以避免母材过热。  ④焊接时焊条摆动幅度要小，焊道两侧停留稍长时间，以利气孔和焊渣的浮出。  ⑤收弧时注意填充满弧坑，以免产生弧坑裂纹。 ⑥镍及镍合金的显微组织为奥氏体，有强的热裂纹倾向，在焊接角焊缝时，要求焊道呈凸起状，这样可以较好地防止热裂纹的产生。