Welding method and system for longitudinal welded tube and readable medium

A technology of straight seam welded pipe and welding method, which is applied in the field of welded pipe welding and welding, to achieve the effects of reducing labor costs, accurate results, and convenient selection

Active Publication Date: 2021-08-06
ZHANGJIAGANG HUACHENG LOCOMOTIVE PRECISION PIPE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the welding process of the existing longitudinal seam welded pipe is relatively mature, the adjustment of some process parameters such as welding temperature and welding current is usually based on manual experience, although the general welding process is equipped with feedback mechanisms such as temperature sensors and cameras. Adjust the welding parameters according to the feedback results, but it is inevitable to have hysteresis

Method used

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  • Welding method and system for longitudinal welded tube and readable medium
  • Welding method and system for longitudinal welded tube and readable medium
  • Welding method and system for longitudinal welded tube and readable medium

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Effect test

Embodiment 1

[0032] This embodiment discloses a welding method for straight seam welded pipes, such as figure 1 shown, including the following steps:

[0033] 1) Input the obtained interface parameters of multiple welded pipe welding surfaces into the neural network model, and train it to obtain classification results.

[0034]Such as figure 2 As shown, the network layer of the neural network model includes the first convolutional layer, the first maximum pooling layer, the second convolutional layer, the second maximum pooling layer, the third convolutional layer and the third maximum pooling layer. The fully connected layer of the network model includes three layers of fully connected layers, in which the size of the convolution kernel of the first convolutional layer is 3x3, the number is 256, and the step size is 2; the window size of the first maximum pooling layer is 3x3, and the step size is 3x3. The length is 2; the size of the convolution kernel of the second convolutional laye...

Embodiment 2

[0055] Based on the same inventive concept, this embodiment discloses a welding system for straight seam welded pipes, including:

[0056] The model training module is used to input the obtained interface parameters of multiple welded pipe welding surfaces into the neural network model, and train it to obtain classification results;

[0057] The mapping module is used to obtain welding parameters corresponding to each classification result, and establish a corresponding mapping relationship between each classification result and its corresponding welding parameters to form a mapping relationship library;

[0058] The interface parameter classification module is used to extract multiple interface parameters corresponding to the entire surface to be welded of the welded pipe, and input the extracted interface parameters into the neural network model. If the corresponding classification results are output, the welding parameters are obtained according to the mapping relationship. ...

Embodiment 3

[0063] Based on the same inventive concept, this embodiment discloses a computer-readable storage medium storing one or more programs, one or more programs include instructions, and the instructions, when executed by a computing device, cause the computing device to execute any one of the above-mentioned Welding method of longitudinally welded pipe for item.

[0064] Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

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Abstract

The invention relates to a welding method for a longitudinal welded tube. A neural network model is trained through obtained interface parameters of a plurality of welded tube welding faces, and classification results obtained; a welding parameter corresponding to each classification result is obtained, a corresponding mapping relation is established for each classification result and the corresponding welding parameter, and a mapping relation library is formed; interface parameters corresponding to the whole to-be-welded face of the welded tube are extracted and classified to find welding parameters corresponding to the classification results, a welding starting point is selected on the to-be-welded face of the welded tube, the multiple interface parameters in the step 3 are ranked according to the starting point, and the parameter change positions are determined; and according to the interface parameter sequence and the parameter change position, the change sequence and the change positions of the corresponding welding parameters are generated, and therefore, the parameter change technological process in the welding process is obtained. According to the method, welding parameters can be selected more objectively and accurately, so that the welding quality of the longitudinal welded tube can be better guaranteed.

Description

technical field [0001] The invention relates to a welding method, system and readable medium of a straight seam welded pipe, belonging to the field of welding technology, in particular to the field of welded pipe welding. Background technique [0002] Longitudinal welded pipe is a steel pipe obtained by straight seam welding of steel pipes made of hot-rolled or cold-rolled steel plates or steel strips on welding equipment. About 70% of the quality problems of straight seam welded pipes come from the welding production process, so , The welding method of longitudinal welded pipe is one of the most critical steps in the production of welded pipe. [0003] Electric Resistance Welding (ERW) welding is a form of resistance welding. After the hot-rolled plate is formed by a forming machine, the steel coil is deformed into a smooth cylindrical tube blank. When the high-frequency current passes through the tube When the load circuit of the V-shaped opening angle of the blank is loa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/00B23K31/02B23K101/06
CPCB23K37/00B23K31/027B23K2101/06Y02P90/30
Inventor 周金苗陈明峰韩波
Owner ZHANGJIAGANG HUACHENG LOCOMOTIVE PRECISION PIPE MFG
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