下载后可任意编辑A一种重燃喷嘴体焊接工艺, 其特征在于: 所述重燃喷嘴体焊接工艺包含有如下步骤并依次执行: 主体喷嘴壳体焊接步骤、 中心气路壳体焊接步骤、 整体喷嘴壳体焊接步骤。本制造喷嘴体的焊接技术填补国内空白。能够应用于重型燃气轮机。The invention relates to a welding technology for re-ignition nozzle bodies, which is characterized in that, the welding technology for re-ignition nozzle bodies comprises the following steps which are carried out in sequence: the welding of the main nozzle housing, the welding of the central gas path housing and the welding of the whole nozzle housing. The welding technology for nozzle bodies of the invention has the advantages that, the domestic gap in this field is filled, and the invention can be applied to heavy duty gas turbines.A一种锡球, 其中, 锡球的锡核由纯锡金属制成, 且该锡核外围包覆二种以上金属形成的合金焊料层。本制造中锡球的锡核为纯锡, 纯锡的柔软度优于一般以合金作为锡核的锡球的焊点, 锡核能够吸收大部分的外力, 进而提高了锡球焊点的耐冲击性; 其次, 纯锡锡核不存在形成介金属化合物的问题, 不会有晶粒扩大导致焊点破裂的问题, 进而提高了锡球焊点的耐热疲劳性; 另外, 纯锡锡核锡球在表面焊接过程中能够熔融, 能够随着电连接器的翘曲而变形(拉长或压扁), 故易于在电连接器和电路板之间形成焊点。因此, 使用本制造锡球的电连接器也具有较佳的电气连接性能。The invention relates to a tin ball, wherein the tin core of the tin ball is made from pure tin, and the thin core is enveloped by an alloy solder layer made from more than two types of metals. The tin ball has the advantages that, the tin core of the tin ball is made from pure tin, 下载后可任意编辑and as the softness of pure tin is better than the solder point of the tin ball using alloy as the tin core, the tin core can absorb most external force, and therefore the impact resistance of the solder point of...
