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Welding process of longitudinal seam of blast furnace shell

A welding process and longitudinal welding seam technology, applied in welding equipment, manufacturing tools, edge parts of workpieces, etc., can solve the problems of long welding time, great influence on welding quality skills and physical fitness, and the inability of multiple people to operate at the same time. The effect of labor intensity, beautiful appearance, and simplified process

Inactive Publication Date: 2018-04-24
ANHUI MA STEEL EQUIP MAINTENANCE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the overhaul of the blast furnace, the welding quality and welding time of the blast furnace shell play a key role in the maintenance of the blast furnace. In the past, all welds of the steel plate of the blast furnace shell of Masteel were welded by manual manual arc plus carbon dioxide gas shielded welding. Due to the welding workload Large, due to the limitations of the welding space, the temperature of the heat conduction body of the welding furnace shell and the high temperature of the summer weather, multiple people cannot operate at the same time during welding, the welding time is long, and the welding quality is greatly affected by the skills and physical fitness of the operators

Method used

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  • Welding process of longitudinal seam of blast furnace shell
  • Welding process of longitudinal seam of blast furnace shell
  • Welding process of longitudinal seam of blast furnace shell

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Embodiment 1

[0034] A welding process for the longitudinal weld seam of a blast furnace shell, the welding process steps are:

[0035] 1) Preparation of welding equipment

[0036] Adopt HCD500-6 automatic welding machine to adjust various welding parameters (0~1100mm / min) through the track, and clamp the welding torch of the full set of functional equipment for carbon dioxide gas shielded welding on the automatic welding machine, and then pair it well: L left stop / R Right stop / C delay, swing speed, swing angle (adjustment range 0~10°), travel speed (0~1100mm / min), arc closing / non-welding / welding, centering, walking direction, start / stop. Welding speed at various positions, adjust each welding data during normal welding, compare all welding processes with qualified quality, and the combined automatic welding machine finally meets the welding requirements of large and thick plate blast furnace shells.

[0037] The original HCD500-6 automatic welding machine holding welding torch support r...

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Abstract

The invention discloses a welding process of the longitudinal seam of a blast furnace shell. The welding process has the advantages that the welding gun of carbon dioxide arc welding full-function equipment is clamped to an automatic welding machine, the matched welding process is provided, welding cracks on high-strength steel materials can be eliminated effectively, and accordingly the high-quality welding seam and the stable welding structure can be obtained; the requirements of high-strength steel in actual use are sufficiently satisfied; in addition, the welding process is simple to operate, low in cost and investment, capable of satisfying field actual requirements and high in work efficiency.

Description

technical field [0001] The invention relates to a welding process for welding seams of blast furnace shells by an automatic welding machine, in particular to a welding process for longitudinal seams of blast furnace shells. Background technique [0002] At present, my country has become the world's largest iron and steel country. The scale of blast furnace construction has become a trend of giantization, the thickness of the welding plate of the blast furnace shell is also increasing, and the workload of welding is increasing. The traditional blast furnace shell inspection and maintenance adopts manual welding, which has a large welding workload, high labor intensity and long welding time, which is far from meeting the requirements of construction progress and construction quality. [0003] 2500m 3 As the main ironmaking equipment of Maanshan Iron and Steel, the blast furnace plays an important role in the production of molten iron in Maanshan Iron and Steel. The blast fur...

Claims

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Application Information

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IPC IPC(8): B23K31/02B23K33/00
CPCB23K31/02B23K33/006
Inventor 范兴海崔学峰许杰峰章锐解学顿高磊吴旺利赖金春
Owner ANHUI MA STEEL EQUIP MAINTENANCE CO LTD
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