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Welding process of a pipe body

A welding process and tube body technology, applied in the field of welding process of the tube body, can solve the problems of increasing the welding process steps, reducing the welding efficiency, and cumbersome welding, etc. Effect

Active Publication Date: 2021-08-31
莱芜市安邦冶金设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned existing technical solutions have the following defects: in order to improve the strength and sealing of the connection structure between the two welded parts, multiple welding methods are used, but this will increase the steps of the welding process and make the welding more cumbersome, resulting in Reduced welding efficiency

Method used

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  • Welding process of a pipe body
  • Welding process of a pipe body
  • Welding process of a pipe body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0036] Embodiment: a welding process of a pipe body, comprising the following steps:

[0037] Step 1: Cleaning, first rinse the contact surface with water to remove the stains on the contact surface. Then grind the contact surface to remove the oxide layer on the metal surface and make the contact surface smoother, so that the two contact surfaces can fit closer together, making the welding structure of the two closer.

[0038] Step 2: Pre-connection, pre-fix the pipe fittings and connectors. Pre-fixation can be fixed by spot welding or clamping.

[0039] When welding is used, taking the water separator 100 as an example, insert the water inlet pipe 101 into the punched flange 104 on the housing 102, make the contact surfaces of the two fit together, and then align the edge of the punched flange 104 with the The outer wall of the water inlet pipe 101 is spot welded, and there are four spots for spot welding, and the four welding spots are evenly distributed on the water inle...

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PUM

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Abstract

The invention discloses a welding process of a pipe body, which belongs to the field of welding technology. The main points of the technical scheme include the following steps: step 1: cleaning, cleaning the contact surfaces of pipe fittings and connecting pieces; step 2: pre-connecting, Fix the pipe fittings and connectors by spot welding or clamping; step 3: welding, use seam welding to weld and fix the pipe fittings and connectors; step 4: post-processing, annealing the workpiece after welding; its characteristics In step 3, when the workpiece is welded, the electrode of the seam welding machine reciprocates along the axis of the pipe relative to the axial direction of the pipe while rotating coaxially with the pipe. The present invention has the effect of improving welding efficiency.

Description

technical field [0001] The invention relates to the field of welding technology, more specifically, it relates to a welding process of a pipe body. Background technique [0002] Resistance welding refers to the method of using the resistance heat generated by the current passing through the weldment and the contact as the heat source to locally heat the weldment and simultaneously pressurize it for welding. When welding, no filler metal is required, the productivity is high, the deformation of the weldment is small, and it is easy to realize automation. [0003] At present, a water separator 100 on an SCR denitrification device is disclosed, such as figure 1 As shown, it includes a housing 102, a water inlet pipe 101 and an outlet pipe 103 fixedly connected to the housing 102, and the position where the housing 102 communicates with the water inlet pipe 101 or the water outlet pipe 103 is provided with a punching flange 104, in order to apply to complex Working conditions ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K11/06B23K11/34B23K11/36B23P15/00
CPCB23K11/067B23K11/34B23K11/36B23P15/00B23K2101/06
Inventor 陈俊立郑书文郑力玮李乾实许庆斌
Owner 莱芜市安邦冶金设备有限公司