大型结构的复杂部件是用这种钢制成的。因为大锻件的生产比小锻件花费大,功夫多,困难大,所以,人们尽力使大部件的制造通过焊接许多小零件来实现。然而,实践说明1.6604材料用普通的焊接方法实际上是行不通的。电子束焊比普遍的焊接技术有着显著的优点,它能在真空中焊接,输入热量少,熔化区狭窄,因此,人们试图对本来不能焊接 The complex components of large structures are made of this steel. Because large forgings are more expensive and less labor-intensive to produce than smaller ones, people try their best to make large parts by welding many small parts. However, practice shows that 1.6604 material is practically impractical with normal welding methods. Electron beam welding has a significant advantage over common welding techniques in that it can be welded in a vacuum with little heat input and a narrow melting zone,