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一、概述: 溶解乙炔气瓶是由钢质焊接瓶体和瓶内充满整体的多孔性硅酸钙固体填料组成。它的物理性能与钢质瓶体相差很大,如果钢质瓶体焊接接头结构不合理,会造成应力集中,导致填料裂纹。因此,瓶体环缝不使用垫环,瓶内焊缝要求平滑均匀,且不允许手工焊接,X光拍片纵缝和环缝均须达到Ⅱ级。 (一)结构特点: 气瓶内径为250mm,筒体和封头板厚均为5mm,容积40L,气瓶筒体采用12CrMnCu耐大气腐蚀钢板卷制,封头采用冷冲压成型(冲后用650℃(退火保温1
First, an overview: Dissolved acetylene cylinders are welded steel bottle and bottle filled with the overall porous calcium silicate solid filler. Its physical properties and the steel bottle body is very different, if the steel bottle welded joint structure is irrational, will result in stress concentration, leading to filler cracks. Therefore, the bottle ring girth do not use the pad ring, the bottle weld smooth, and does not allow manual welding, X-ray film longitudinal seam and girth must reach Ⅱ level. (A) structural features: cylinder diameter of 250mm, cylinder and head plate thickness are 5mm, volume 40L, cylinder cylinder 12CrMnCu atmospheric corrosion resistant steel rolling, the head with cold stamping (washed with 650 ℃ (annealing insulation 1