The world's first fluidized bed residual oil hydrogenation p
来源:本站 | 作者:admin | 发布时间: 2020-08-06 09:37:20 | 519 次浏览
The worlds first fluidized bed residual oil hydrogenation project in Zhenhai, where flanges are filled with welded ring connecting surface grooves, are highlighted in the surfacing process of the lower head oblique socket flange after the h
The world’s first fluidized bed residual oil hydrogenation project in Zhenhai, where
flanges are filled with welded ring connecting surface grooves, are highlighted in the
surfacing process of the lower head oblique socket flange after the heat treatment.
The surfacing is the upside position surfacing, Considering the defects of the surfacing
welding quality, the full surfacing welding is adopted, regardless of the surfacing and
processing, the workload is huge, and the processing technology: the Britishportable
equipment is used to fix the equipment through the flange inner hole, adjustthe center
and flatness. After turning the plane out of the reference surface, performrough machining
of groove width 46mm, groove depth 27mm, double bevel 23° slotting,and then finish
machining to ensure groove pitch diameter ±0.13 groove width 46±0.2groove depth
27+0.4 angle 23° surface roughness 0.8-1.6, the flaw detection PT isqualified to complete.
