下载后可任意编辑试议换热器制造工艺指导流程模板12024 年 4 月 19 日下载后可任意编辑接 管 与 法 兰Nozzle and the flange将坡口加工好的接口与相对应法兰进行组装, 要求: 间隙 3~4mm, 错边在 1.5mm 以下, 氩弧焊打底, 全熔透结构。焊接完成后送无损检测, 检验标准 RT≥( ) %, Ⅲ 级合格。Assemble the groove machined nozzle with the corresponding flange, requirements: the gap is 3 ~ 4mm, the staggered side is less than 1.5mm, argon arc bottoming, full penetration structure. After welding,having a non-destructive testing, the inspection standards is RT ≥ () class, III qualified.支 座 点 焊Supportswelding1.按图对支座的底板、 筋板、 立板进行组装前的检查。In accordance with drawings, inspect the supports backplane, ribs, riser before assembling.2.组装各部件, 点固, 加支撑件等, 焊接。Assemble every component, solid point, support pieces, and welding.接 管 支 座 与壳 体 组 装Nozzle supports and shell assembling1.按先前标出的 0°、 90°、 180°、 270°方位点,延长在壳体上。Base on the previously marked 0 °, 90 °, 180 °, 270 compass points°, extending to the hcase.2.画出接管、 支座, 预开孔, 安装位置, 即坐标点。Draw the nozzle, supports, pre-openings, the installation location, that is, the coordinates of points3.检验合格后, 开孔, 然后打上坡口, 角度为外坡口 30°After Inspection, opening, then grooving,the angle of the outer groove is30 °4.组对接管与壳体, 组装前, 接管必须将补强圈带上固定好, 一起装配。Connect nozzle to shell, before assembling,the nozzle must fix the reinforcement ring,along with the equipment.5.接管与壳体组对间隙为 2~3mm, 且间隙均匀。The gap of the nozzle and shell is 2 ~ 3mm, and the gap is uniform6.焊接完毕后, 内接管须清根封底, 焊缝打磨与母材齐, 并倒 2×45°圆角。After welding, to nozzle requires to clear the root of the back cover, weld and polise to ensure...
