不銹鋼施工方案-展示頁
2025-06-14 22:47本頁面
【正文】 ot permitted. The material of the hook should be stainless steel. The hook should not be fitted on the working surface of the stainless steel. No hit on the surface of stainless steel plate with hammer is permitted during the whole operation. If stainless steel distortion happen, it is not permitted to carry out levelling with heating or hammer hit. The tools for welding such as welding slag hammer, brush, dustpan should be made of stainless steel. When carrying out the automatic welding, rubber blocks should be put between the steel track and the stainless steel plates. All the damages such as welding spattering, arc hurt, smoke dot and machinery scuffing during the manufacture of the stainless steel should be swept away entirely.2. Stainless steel deck and joining of the deck blocks All the deck blocks should be dressed before the joining. Before the vertical loading, longitudinal girder position lines, transverse web position lines should be marked on the stainless steel deck. Load the stainless steel deck on the deck framing, and align the marked lines to the deck members. The technology of vertical loading of the decks is the same as the technology of stainless steel plates alignment. The decks should be located precisely in order not to damage the decks. After verifying, report for checking, and carry out the positioning welding. Positioning welding and welding. First the welding seam should be dressed to sweep away the dirt, grease and dust. And then clean with acetone or alcohol. After that the positioning welding between the deck framing and the deck should be carried out. The order of the welding is: for transverse web, from the middle to the two sides。酸洗 酸洗是最常用去除氧化物和鐵污染的化學方法，酸洗后必須用干凈的水噴射，含有氯的水能夠改善材料的表面狀況。（用砂輪粗磨后，拋光機拋光）。自動焊接時需在鐵軌道與不銹鋼板之間墊橡膠。不銹鋼產(chǎn)生變形不得用熱加工矯正，不得用鐵錘敲擊。對于必須吊放于分段上施工的設(shè)備，必須采取相應(yīng)的措施來保證設(shè)備碳鋼部分與不銹鋼不直接接觸，如設(shè)備下墊放木板、橡膠、阻燃塑料等。大合攏時液貨艙內(nèi)施工用的腳手架為木桿或竹竿。（三）大合攏分段合攏時，施工區(qū)設(shè)能防風雨、防潮和寒冷的施工蓬。不銹鋼板加工過程中造成的一些損傷如：焊接飛濺、電弧擊傷、煙斑和機械劃痕、必須徹底清除。不銹鋼產(chǎn)生變形不得用熱加工矯正，不得用鐵錘敲擊。分段內(nèi)的臨時加強材或合攏時用于分段定位的臨時支撐與不銹鋼板之間應(yīng)采用不銹鋼板過渡連接。翻身后應(yīng)將不銹鋼甲板內(nèi)側(cè)面正放在裝有不銹鋼墊塊水平胎架或有尺寸為130130mm若干塊水平墊木上，落位后，應(yīng)整體做施焊前定位焊肉打磨，焊段兩端打磨成圓弧狀。 定位焊施焊完畢后，再次測量周邊尺寸、平行度、垂直度、肋距尺寸、縱骨尺寸等，要符合第1條要求。檢驗無誤后報檢，進行定位焊。將不銹鋼甲板吊至甲板骨架上，并且所劃線與甲板構(gòu)件相對應(yīng)，吊裝不銹鋼甲板按不銹鋼拼板工藝要求同樣操作。（二）不銹鋼甲板與甲板分段合攏甲板分段與不銹鋼甲板合攏前進行打磨。1不銹鋼板加工過程中造成的一些損傷如：焊接飛濺、電弧擊傷、煙斑和機械劃痕、必須徹底清除。1焊接時使用的工具（焊渣錘、刷子、撮箕）應(yīng)為不銹鋼，包括焊縫除漆用的工具。1在整個操作過程中，不可用鐵錘敲打不銹鋼表面。施工中分段的吊運不得隨意從不銹鋼分段上方經(jīng)過。分段內(nèi)的臨時加強材和合攏時用于分段定位的臨時支撐與不銹鋼板之間應(yīng)采用不銹鋼板過渡連接。不允許隨意將工具、設(shè)備放在不銹鋼板上，不可在不銹鋼板上任意拖拉龍頭線。施焊前，用丙酮或酒精洗凈焊縫兩側(cè)20mm范圍內(nèi)不銹鋼板上的污、油漆和塵土，避免焊接燃燒中有滲碳現(xiàn)象。根據(jù)圖紙劃出甲板中心線、肋骨檢驗線和各構(gòu)架的位置線，報檢。報檢。為了防止焊接時不銹鋼板變形，板的上面用壓塊固定在胎架上，壓塊與不銹鋼板接觸的部分墊膠皮保護。劃出中間板的中心線，并在胎架兩端中心上拉線，檢測使中間板的中心線與所拉線對準，相應(yīng)肋位與肋骨檢驗線對準。按拼板圖的要求，將不銹鋼板鋪放在胎架上，準確落位，以免劃傷不銹鋼甲板，并核對鋼板號料時所標注的符號、首尾方向、肋骨號等。四、施工
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