焊缝间距及位置要求 [课程编码4371]

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11.2.5  焊缝的位置应符合下列规定：_{enmoxfhhjwvyzdzpudbqarqzzqjiglubidzxshd}

    1  直管段管径大于或等于DN150时，焊缝间距不应小于150mm；管径小于DN150时，焊缝间距不应小于管道外径；_{itixovbopparkphcrxmdqpemkn}

    2  管道弯曲部位不应有焊缝；iiernsnsopnaoscesnbzvxxlbbhcqscxisgfekvtukepy

    3  管道接口焊缝距支、吊架边缘不应小于100mm；eluqtekygsnnicbgwnrhjirsdwxcsidvhd

    4  焊缝不应紧贴墙壁和楼板，并严禁置于套管内。vdllznppjplcrgbyevmgggtpdascunnahzib

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& A8 h& A3 R3 K" Y# Q7 @; nDN150以上的管道，焊缝间距不能小于150mm。因为焊接间距过小，第二次焊接时会影响前一次焊接的强度。_{tpeupcnfecmhpdpfsvjuttpiuabxqraaexpmbvsjggmf}
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: N- Y: |: l% Z+ t" m& J焊缝间距过小：

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焊接焊缝间距要求bdcihyqazaujbgdbvhzdafierunpgbfuvlmuikrdzgwtk

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焊缝间距可以：

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焊接焊缝间距要求bdcihyqazaujbgdbvhzdafierunpgbfuvlmuikrdzgwtk

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