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A kind of finishing method of welded pipe

A welded pipe, to-be-processed technology, applied in metal processing equipment, metal processing mechanical parts, manufacturing tools, etc., can solve problems such as low efficiency, tool wear and scraping quality, and achieve the effect of improving quality and improving scraping accuracy

Active Publication Date: 2021-07-16
无锡市源隆金属制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] According to the above-mentioned technical problems of severe tool wear, low scraping quality and low efficiency when using an internal burr scraping device to solve the seamlessness of welded pipes, a method for finishing welded pipes is provided

Method used

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  • A kind of finishing method of welded pipe
  • A kind of finishing method of welded pipe
  • A kind of finishing method of welded pipe

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Experimental program
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Embodiment 1

[0048] Such as figure 1 As shown, the present invention provides a method for finishing the welded pipe. In order to realize the precise scraping of the internal burrs of the welded pipe during the finishing process and improve the accuracy and quality of the removal of the internal burrs of the welded pipe, the internal burr scraping is divided into preparation, rough scraping, There are four stages of pre-fine scraping and fine scraping, including the following steps:

[0049] S1: In the preparation stage, use the welded pipes produced in the laboratory for data collection;

[0050] S1-1: Set the pre-finish scraping temperature and fine scraping temperature, and take samples of the burr height in the trial production welded pipe at the set pre-finish scraping temperature and fine scraping temperature respectively, and obtain samples at the pre-finish scraping temperature Observation value of burr height in point d 1i And the observed value d of the burr height in the sampl...

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Abstract

The invention provides a method for finishing a welded pipe, comprising the following steps: S1: in the preparation stage, collecting the average inner burr height D, the thermal expansion size E of the inner burr and the average scraping force F from the welded pipe produced in the laboratory; S2: the rough scraping stage, Set a constant scraping force for rough scraping, and scrape the internal burr at the position of H>80%D until the internal burr residual height H≤80%D; S3: In the pre-fine scraping stage, use a constant scraping depth to clean the internal burr of the welded pipe Pre-fine scraping until the height of the inner burr is e=E±0.5mm; S-4: In the stage of fine scraping, the inner burr of the welded pipe is finely scraped at a constant scraping depth. The technical scheme of the invention solves the technical problems of severe tool wear, low scraping quality and low efficiency when the internal burr scraping device is used to solve the seamlessness of welded pipes.

Description

technical field [0001] The invention relates to the technical field of welded pipe production, in particular to a method for finishing welded pipes. Background technique [0002] Welded pipe has the advantages of uniform wall thickness, regular geometric dimensions, simple production process, and high production efficiency, and is used in various industries. However, due to the difficulty in the finishing process of welded pipes, it cannot replace the seamless pipes with high production costs used in fields with high precision requirements such as aerospace, automobiles, and oil transportation. In recent years, the finishing process technology of welded pipes has been developed rapidly. Although some specifications of welded pipes meet the requirements for use in the high-end field, due to the difficulty in the seamless process in the finishing process, defective Due to the large number of products and low production efficiency, the advantages of low production cost of weld...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23D79/02B23Q17/09B23Q17/00
CPCB23D79/02B23Q17/00B23Q17/0966
Inventor 高新亮任善银张天雄
Owner 无锡市源隆金属制品有限公司
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