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Method of welding the plug in type connection nozzle and the un-orthogonal crossed connection nozzle of the cylinder

A welding method and plug-in technology, applied in welding equipment, arc welding equipment, edge parts of workpieces, etc., can solve the problems of difficult to guarantee welding quality, difficult groove processing, low utilization rate of welding electrodes, etc., to save welding materials, improve Welding efficiency and the effect of improving welding efficiency

Active Publication Date: 2007-09-26
SHANGHAI BOILER WORKS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] As shown in Figure 1, the schematic diagram of the non-right-angle intersection joint between the plug-in nozzle and the cylinder body. The large-thickness joint between the plug-in nozzle and the cylinder body is not at right angles. Due to the special spatial shape of the welded joint, the current process is generally manual arc welding, especially Especially for the thicker cylinder, the thickness of the weld becomes larger. If manual arc welding is used, not only the efficiency is low, the utilization rate of the electrode is low, the welding quality is difficult to guarantee, but also the groove processing is difficult, time-consuming and labor-intensive.

Method used

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  • Method of welding the plug in type connection nozzle and the un-orthogonal crossed connection nozzle of the cylinder
  • Method of welding the plug in type connection nozzle and the un-orthogonal crossed connection nozzle of the cylinder
  • Method of welding the plug in type connection nozzle and the un-orthogonal crossed connection nozzle of the cylinder

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Embodiment

[0028] Plug-in nozzle 2 size: inner diameter 1800mm, wall thickness 280mm; barrel 1 size: inner diameter 3400mm, wall thickness 210mm; welding method:

[0029] As shown in Figure 2, it is a schematic diagram of welding the lower part of the weld. First, use a crane to insert the connecting pipe 2 into the perforated cylinder 1 and assemble it properly as required. 12 anti-deformation rigid fixed ribs 14 are uniformly arranged on the outside of the body 1 and the connecting pipe 2 and welded properly;

[0030] Then use a crane to place the assembled non-right-angled intersecting plug-in nozzle and the cylinder workpiece according to the orientation shown in Figure 2, that is, the nozzle 2 is vertically placed on the ground at the bottom, and the cylinder 1 is placed obliquely at the top. After the workpiece is placed and fixed, place it on the cylinder. The working platform 7 and temporary stairs 8 are installed at the lower port of the body 1, the fixed platform 3 of the hoist...

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Abstract

The invention relates to a welding method for insertion nozzle and cylinder non-rectangular intersection connector, characterized in that saddle automatic submerged arc welding machine or deep and narrow groove welding torch is used; the groove shape is I-type, namely the angle of groove at two sides is O; the nozzle is set vertically and the cylinder is oblique; auxiliary tooling is used; the welding method from the lower part to middle part to upper part is adopted to achieve purposes of automatic submerged arc welding and control deformation. The merit of invention is that the influence of human factor to welding quality is decreased; the welding efficiency is improved greatly and the machining period is shortened; welding material can be saved notably; welding quality can be guaranteed in effect; and the machining cost is decreased greatly.

Description

technical field [0001] The invention relates to a welding method for a non-right angle intersection joint of a plug-in connection pipe and a cylinder body, in particular to a welding method for a large-thickness joint of a plug-in connection pipe and a cylinder body non-right angle intersection, and belongs to the field of welding technology. Background technique [0002] As shown in Figure 1, the schematic diagram of the non-right-angle intersection joint between the plug-in nozzle and the cylinder body, the large-thickness joint between the plug-in nozzle and the cylinder body at a non-right angle, due to the special spatial shape of the welded joint, the current process is generally manual arc welding, especially Especially for a thicker cylinder, the thickness of the weld becomes larger. If manual arc welding is used, not only the efficiency is low, the utilization rate of the electrode is low, the welding quality is difficult to guarantee, but also the groove processing ...

Claims

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Application Information

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IPC IPC(8): B23K9/032B23K9/035B23K9/095B23K9/235B23K33/00
Inventor 张茂龙钱旭辉陈红亮
Owner SHANGHAI BOILER WORKS
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