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Control process for laser cutting sieve tube

A technology of laser cutting and sieve tube, applied in manufacturing tools, laser welding equipment, metal processing equipment, etc., can solve problems such as low processing efficiency

Inactive Publication Date: 2004-09-15
天津钢管三圆管材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of the amount of milling and grinding, these two methods not only make the processing efficiency low, but also the minimum gap of cutting is above 0.35±0.05mm

Method used

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  • Control process for laser cutting sieve tube
  • Control process for laser cutting sieve tube
  • Control process for laser cutting sieve tube

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Effect test

Embodiment Construction

[0013] Specific embodiments are given below in conjunction with the accompanying drawings to further illustrate how the present invention is realized.

[0014] Such as figure 1 As shown, the control process of laser cutting screen includes the following process steps:

[0015] (1) Determine the processing parameters according to the parameters of the processed pipe body, and determine the software used according to the processing parameters, wherein the parameters of the processed pipe body include: pipe body model, specification, length, weight, steel grade, steel No., wall thickness tolerance.

[0016] (2) Determine the gas distribution index of the equipment, choose medical oxygen for oxygen; the purity of nitrogen, helium and carbon dioxide is 99.995%; the total impurities of water and oil in the compressed air are less than 20ppm. Among them, medical oxygen is known, and its purity is 99.4% (anhydrous).

[0017] (3) Carry out cutting operations, including: processing t...

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Abstract

The control process for laser cutting of sieve tube includes: determining the machining parameters and setting software based on the parameters of the machined tube; determining the gas distributing indexes of the equipment; surface treatment and cutting while cooling and eliminating iron burl and oxide; and inspection. Unlike common mechanical cutting, the laser cutting can cutting slot as narrow as 0.2-0.3 mm and has high cutting quality.

Description

technical field [0001] The invention relates to a laser cutting screen pipe technology, in particular to a laser cutting screen pipe control process. Background technique [0002] Screen pipe (also known as cutting screen pipe) is a special pipe type installed at the bottom of seamless or welded steel well pipes such as oil wells, water wells, and geothermal wells to separate the mined liquid from the sand in the formation. . Due to the basic structural characteristics of the strata involved, the different particle sizes of the sand and stones in contact and the difference in the viscosity of the mining liquid, the gap specifications and shapes of the required screen pipes are also different. In recent years, with the rapid development of my country's petroleum and geology and mining industries, the maturity of oil well drilling and production technology in desert areas, the intensification of oil field development in the middle and later stages, the rise of large-scale off...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/60B23K26/70E21B43/00
Inventor 宁福宏刘雨臣张健刘伟王治国师海燕王家仁李东
Owner 天津钢管三圆管材有限公司