同时，讨论了船用铝合金T型材CO2激光焊接过程中产生气孔和过程不稳定的原因。
The reasons of porosities production and process instability in CO2 laser welding shipbuilding T-section aluminum alloy are also discussed.
本文介绍研制的新型铸造铝合金zl305a是一种强度高，时效稳定性好，耐蚀性优良的船用新材料。
Casting aluminium alloy ZL305A is a new shipbuilding material with high strength, good ageing stability, excellent corrosion resistance.
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