WELDING TECHNOLOGY AND PROCESS FOR P91 STEEL PIPES WITH LARGE BORE AND WALL-THICKNESS

NI Xiaohong Anhui Electric Power Construction Company No.2

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WELDING TECHNOLOGY AND PROCESS FOR P91 STEEL PIPES WITH LARGE BORE AND WALL-THICKNESS

更新时间：2025-09-28

- WELDING TECHNOLOGY AND PROCESS FOR P91 STEEL PIPES WITH LARGE BORE AND WALL-THICKNESS
- Thermal Power Generation Vol. 41, Issue 5, Pages: 106-108(2012)
- 作者机构：
  
  安徽电力建设第二工程公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TG457.11
- Published：2012
- 稿件说明：
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NI Xiaohong Anhui Electric Power Construction Company No.2. WELDING TECHNOLOGY AND PROCESS FOR P91 STEEL PIPES WITH LARGE BORE AND WALL-THICKNESS[J]. Thermal power generation, 2012, 41(5): 106-108.
DOI：

NI Xiaohong Anhui Electric Power Construction Company No.2. WELDING TECHNOLOGY AND PROCESS FOR P91 STEEL PIPES WITH LARGE BORE AND WALL-THICKNESS[J]. Thermal power generation, 2012, 41(5): 106-108. DOI：

摘要

在对P91钢进行焊接性能分析的基础上

提出了大口径厚壁P91钢管的焊接工艺方案以及焊接注意事项

包括坡口检查及清理、焊口组对及定位焊、背面充氩保护、焊前预热、手工钨极氩弧焊打底、焊条电弧填充及盖面

以及焊后热处理等。

Abstract

On the basis of analysing welding property of P91 steel

a welding process for P91 steel pipes with large bore and wall thickness has been given

the operational parameters and matters to pay attention in the welding process

such as inspection and cleaning of the bevels

grouping bevels for position-welding

argon-filling protection from the back

preheating before welding

argon arc welding with manual tungsten electrode

filling and precoating with electric arc welding using electrode

as well as heat treatment after welding etc.

being put forward.

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