有关胀管方面的问题? tube expansion shall be commenced at the rear face of the tubesheet leaving the unexpanded lengths as per para 2.1.3 / 2.1.4 and shall proceed in steps outwards to the tubesheet front side. (e---c)胀管应自管板背面开始,留出 2.1.3/2.1.4 段中规定的长度不胀,且应逐步向管板正面方向推进。 对胀管一窍不通,请帮忙看看! 查看更多