焊管
銲管
한관
Welded Pipe and Tube
2015年
9期
41-44
,共4页
焊接%2Al2铝合金%焊接热输入%金相组织%力学性能
銲接%2Al2鋁閤金%銲接熱輸入%金相組織%力學性能
한접%2Al2려합금%한접열수입%금상조직%역학성능
welding%2Al2 aluminum alloy%welding heat input%metallographic structure%mechanical properties
选用两组不同焊接热输入分别对2Al2铝合金进行了焊接工艺评定, 并对焊接接头进行了拉伸试验、 弯曲试验、 硬度检测、 宏观检查及金相组织分析等. 通过对比两种不同焊接热输入下所焊焊接接头的力学性能及金相组织的变化, 尤其是焊接热输入对焊接接头软化程度及晶粒度的影响, 优化出焊接2Al2铝合金时比较理想的焊接热输入, 即7.2~9 kJ/cm. 该结论可用于指导同类产品的焊接生产.
選用兩組不同銲接熱輸入分彆對2Al2鋁閤金進行瞭銲接工藝評定, 併對銲接接頭進行瞭拉伸試驗、 彎麯試驗、 硬度檢測、 宏觀檢查及金相組織分析等. 通過對比兩種不同銲接熱輸入下所銲銲接接頭的力學性能及金相組織的變化, 尤其是銲接熱輸入對銲接接頭軟化程度及晶粒度的影響, 優化齣銲接2Al2鋁閤金時比較理想的銲接熱輸入, 即7.2~9 kJ/cm. 該結論可用于指導同類產品的銲接生產.
선용량조불동한접열수입분별대2Al2려합금진행료한접공예평정, 병대한접접두진행료랍신시험、 만곡시험、 경도검측、 굉관검사급금상조직분석등. 통과대비량충불동한접열수입하소한한접접두적역학성능급금상조직적변화, 우기시한접열수입대한접접두연화정도급정립도적영향, 우화출한접2Al2려합금시비교이상적한접열수입, 즉7.2~9 kJ/cm. 해결론가용우지도동류산품적한접생산.
The WPQ(welding procedure qualification) was carried out for 2Al2 aluminum alloy by adopting two groups of different welding heat input. The tensile test, bend test, hardness test, macro examination and metallographic structure analysis were conducted for welded joint. By comparing the change of mechanical properties and metallographic structure under 2 kinds of welding heat input, especially the effect of heat input on the softening degree and grain size, the ideal welding heat input, namely 7.2~9 kJ/cm, was optimized for 2Al2 aluminum alloy , which is used to guide the welding production of similar products.
