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An intelligent welding method for electric fusion pipe fittings

A technology of electric fusion pipe fittings and welding methods, which is applied in the field of intelligent welding of electric fusion pipe fittings, can solve problems such as the inability to ensure the rationality of parameter settings, the inability to guarantee the welding quality of pipe joints, etc., to expand applicability, improve welding efficiency, and improve welding efficiency. quality effect

Active Publication Date: 2017-02-01
SOUTHEAST UNIV
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Problems solved by technology

Electrofusion welding is often carried out on field construction sites, and the construction environment is complex and changeable. In theory, changes in environmental factors require corresponding adjustments in welding parameters to ensure welding quality. However, in actual construction, operators often adjust welding parameters based on their own experience. Adjustment, this method cannot guarantee the rationality of parameter settings, so it cannot guarantee the welding quality of pipe joints

Method used

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  • An intelligent welding method for electric fusion pipe fittings

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with drawings and embodiments.

[0029] like figure 1 As shown, the intelligent welding method for electric fusion pipe fittings involved in the present invention includes the following steps:

[0030] Step 1: Preparation for welding:

[0031] a) Line inspection:

[0032] Connect the electric fusion welding machine with the electric fusion pipe fittings. Before the welding starts, control the power supply of the welding machine to output the initial voltage. The initial voltage range is 0-5V, and detect the current output value in the welding circuit under the initial voltage to obtain the initial state. The initial resistance value of the resistance wire of the electric fusion pipe fitting; calculate the deviation between the initial resistance value of the resistance wire of the electric fusion pipe fitting and its standard resistance value, if the above deviation is within ±20% of the standard res...

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Abstract

The invention discloses an intelligent welding method for electrofusion pipe fittings. The method includes the steps of welding preparation, temperature rising period, constant-temperature period and welding completion. Resistance values of resistance wires of the electrofusion pipe fittings are controlled to further control temperatures of the resistance wires of the electrofusion pipe fittings so as to realize welding of the electrofusion pipe fittings. The intelligent welding method has the advantages that presetting of welding parameters before electrofusion welding is avoided, welding quality can be effectively improved, and doubling is prevented.

Description

technical field [0001] The invention relates to the technical field of electric fusion pipe fitting welding, in particular to an intelligent welding method for electric fusion pipe fittings. Background technique [0002] When polyethylene pipes are connected by electrofusion welding, the quality of pipe joints is easily affected by environmental factors and human operation factors. The welding parameters in the welding process usually need to be manually set by the operator according to the actual situation. The quality of the welding parameter setting and the unmeasurable changes in environmental factors will affect the welding quality and directly affect the life of the entire polyethylene pipe. The in-depth research and development of electrofusion welding technology is of great significance to the polyethylene market and even urban infrastructure. [0003] At present, when the electric fusion welding machine is welding the pipeline, the operator needs to preset the weld...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C65/02
Inventor 许飞云彭洋军陆宇航黎世鹏贾民平胡建中黄鹏
Owner SOUTHEAST UNIV
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