試議換熱器制造工藝指導流程(編輯修改稿)
2025-07-25 16:53 本頁面
【文章內容簡介】 ange and the head, a short section of welding: (a) welding the qualified head ,a short section and the corresponding flange, the stagger volume is controlled between 0 ~ 2mm.，無損檢測。(b).The girth welding, nondestructive testing.，安裝管嘴和吊耳，焊接 (c). Drawing and opening, install the nozzle and lug ,welding.、管箱、浮頭蓋，一并整體熱處理。(d).The shell, tube box, floating cover, together with the overall heat treatment. 浮頭蓋Floating bonnet：材質確認 劃線下料，標記移植、切割，外協模壓、回廠檢驗。Ledge: material confirmation Drawing and cutting, mark transplantation, cutting, outsourcing molding, back to the factory inspection.：在材料檢驗員指定下領取貼有合格標簽的法蘭。 Floating head flange: receive designated qualified label of the flange under the guidiance of the materials inspector .，裝配尺寸如圖。Assemble ledge and floating head flange, the assembly size shown in Figure。，再按拱蓋的實形放樣、隔板、切割、組裝、焊接，確保隔板裝配尺寸與浮動管板槽尺寸一致。After welding, the then loft base on the real shape, bulkhead,cutting, assembling, welding, ensure size of the bulkhead, assembly size and floating tube notch groove consistent.、外頭蓋及管箱一并進爐熱處理。Having a heat treatment furnace to the front shell, the outside bonnet and the tube box .管束tube bundle換熱管1．材質確認：φ（ ）（ ） 規(guī)格（ ）。Material confirmation: φ（ ）（ ） Specification().2．單管試壓，試驗壓力為設計壓力的2倍，即（ ）MPa。Singletube testing pressure,the pressure is 2 times the design pressure,that is () MPa.管板本鍛件應按JB4726制造與驗收，進行PT檢測，依圖數控放樣、鉆孔、隔板槽銑加工、倒坡口、拉絲孔攻絲。The forgings shall be JB4726 manufacture and acceptance ,PT detection, according to Figure NC loft, drilling, the milling, chamfer the groove, wire drawing hole tapping.折流板，Q235B，δ16，數控放樣切割，去渣，整形，打垛點固焊。Material confirmation,Q235, δ16, CNC cutting loft
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