weldite白硅铝钠石weldv.焊接；使结合n.焊接；焊缝welding path optimizing焊接路径优化welding thermal process焊接热过程welding quality control焊接质量控制welding wire production焊丝生产welding technology test焊接工艺试验welded inlay impression锻接法嵌体印模welding seam appearance焊缝成形welding process document焊接工艺文档welding process planning装焊工艺welding heat cycle curve焊接热循环曲线