巴萊水電站壓力鋼管用P460Q鋼材焊接性試驗(yàn)研究

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摘要：介紹了歐標(biāo)P460Q鋼的特性。對于該材料的焊接性能，首先通過計算碳當(dāng)量及裂紋敏感系數(shù)進(jìn)行分析，然后進(jìn)行了焊接工藝評定試驗(yàn)驗(yàn)證，最后通過冷卷試驗(yàn)、焊縫返修試驗(yàn)、水壓試驗(yàn)等進(jìn)行研究。

關(guān)鍵詞：歐標(biāo)P460Q；焊接性能；碳當(dāng)量；裂紋敏感系數(shù)；焊接工藝評定。

Welding performance  study of P460Q steel for pressure steel pipe for  baleh hydropower station

PENG Shuiping

China Gezhouba Group Machinery and Ship Co.， Ltd.， Yichang 443002， Hubei， China

Astract： The characteristics of European standard P460Q material are described in this paper. The welding performance of this material will be studied through the carbon equivalent calculation and welding crack sensitivity coefficient analyzing， and then the welding procedure qualification will carried out to check the welding performance， and a series of tests such as the cold coil test and weld repair test， and water pressure test will be carried out for the further study of welding performance.

Keywords： European standard P460Q; welding performance; carbon equivalent; crack sensitivity coefficient; welding procedure qualification

1 序言

歐標(biāo)P460Q高強(qiáng)鋼板通常以調(diào)質(zhì)狀態(tài)交貨，廣泛用于各類工程機(jī)械，如礦山和各類工程施工用的鉆機(jī)、電鏟、電動輪反斗車、礦用汽車、挖掘機(jī)、裝載機(jī)、推土機(jī)、各類起重機(jī)及煤礦液壓支架等。（剩余3480字）