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目前,國(guó)內(nèi)普遍采用接頭鋼圈焊接法組裝電桿,因?yàn)樗确ㄌm盤對(duì)接優(yōu)點(diǎn)多。但在現(xiàn)場(chǎng)組裝時(shí),經(jīng)常發(fā)現(xiàn)接頭鋼圈處混凝土及其鄰近區(qū)域有焊接裂縫,而且多為縱向裂縫(見圖1),影響線路工程質(zhì)量。
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B-22 API S PECIFICATION 6A Metric Table 10.18—API Type BX Pressure Energized Ring Gaskets (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) Ring Number Number Size Outside Diameter of Ring OD Height of Ring H Width of Ring A Diameter of Flat ODT Width of Flat C Hole Size D Depth of Groove E Outside Diameter of Groove G Width of Groove N BX 150 ê43 ê72.19 ê9.30 ê9.30 ê70.87 ê7.98 1.59 ê5.56 ê73.48