Strength Verification and Welding Process Research of Ultra Large Welding Drum

SHE Zongyu; WU Qingning; WU Qingfu; LIU Zongyuan; WU Guoyao

doi:10.7512/j.issn.1001-2303.2024.06.04

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Strength Verification and Welding Process Research of Ultra Large Welding Drum
Vol. 54, Issue 6, Pages: 19-24(2024)
Published： 25 June 2024 ，
DOI： 10.7512/j.issn.1001-2303.2024.06.04
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佘宗宇，吴庆宁，吴庆富，等.超大型焊接卷筒的强度校核及焊接工艺研究［J］.电焊机，2024，54（6）：19-24.

SHE Zongyu, WU Qingning, WU Qingfu, et al.Strength Verification and Welding Process Research of Ultra Large Welding Drum[J].Electric Welding Machine, 2024, 54(6): 19-24.
佘宗宇，吴庆宁，吴庆富，等.超大型焊接卷筒的强度校核及焊接工艺研究［J］.电焊机，2024，54（6）：19-24. DOI： 10.7512/j.issn.1001-2303.2024.06.04.

SHE Zongyu, WU Qingning, WU Qingfu, et al.Strength Verification and Welding Process Research of Ultra Large Welding Drum[J].Electric Welding Machine, 2024, 54(6): 19-24. DOI： 10.7512/j.issn.1001-2303.2024.06.04.

摘要

立足于弹塑性理论，介绍了超大型焊接卷筒在不同载荷作用下的应力状态，得出了超大型焊接卷筒的强度校核公式，为卷筒的壁厚设计提供了理论指导。此外，对超大型焊接卷筒的筒体焊接和外法兰板组焊工艺进行了研究，研究表明：采用内侧坡口与外侧坡口1/4比例交替焊接，获得的筒体焊接接头具备优良的综合力学性能。使用短焊缝分段焊接的方式，通过修正两面交替焊接顺序，保证了卷筒外法兰板的组焊强度和垂直度要求。

Abstract

This article is based on the elastic-plastic theory and introduces the stress state of ultra large welding drums under different loads. The strength verification formula of ultra large welding drums is obtained

providing theoretical guidance for the design of drum wall thickness. In addition

research was conducted on the welding process of the cylinder body and the outer flange plate assembly of the ultra large welding drum. The research showed that the cylinder welding joint obtained by alternating welding of the inner and outer grooves in a ratio of 1/4 has excellent comprehensive mechanical properties. The use of short weld seam segmented welding ensures the assembly welding strength and verticality requirements of the outer flange plate of the drum by correcting the alternating welding sequence on both sides.

关键词

焊接卷筒强度校核焊接变形焊接工艺

Keywords

welding drumstrength checkingwelding deformationwelding process

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