CN1408499A - Control process for laser cutting sieve tube - Google Patents
Control process for laser cutting sieve tube Download PDFInfo
- Publication number
- CN1408499A CN1408499A CN02131032.7A CN02131032A CN1408499A CN 1408499 A CN1408499 A CN 1408499A CN 02131032 A CN02131032 A CN 02131032A CN 1408499 A CN1408499 A CN 1408499A
- Authority
- CN
- China
- Prior art keywords
- cutting
- laser cutting
- sieve tube
- parameter
- processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003698 laser cutting Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims abstract description 25
- 238000005516 engineering process Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 239000001307 helium Substances 0.000 claims description 2
- 229910052734 helium Inorganic materials 0.000 claims description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 238000004381 surface treatment Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 239000004922 lacquer Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- -1 cutting speed Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Laser Beam Processing (AREA)
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
The present invention relates to a kind of control technology of laser cutting sieve tube technology, particularly a kind of laser cutting sieve tube.
Background technology
Screen casing (also claim cut meet screen casing) is to be installed on seamless or welding steel well casing such as oil well, well, underground heat bottom, a kind of special cast that separates with sandstone in the stratum in order to the liquid that will be exploited.Because it involves in the basic structure characteristics on stratum, the difference of the sandstone granularity difference of contact and the viscosity of produced liquid, the slit specification of required screen casing and shape are also respectively different to some extent.In recent years, along with China's oil, the high speed development of miner industry, the maturation of desert area oil well drilling and production technology; the increasing of oil field middle and later periods exploitation dynamics; the emergence of offshore oil production scale and geothermal well, saline wells, deep layer well flourish, the screen casing consumption requirements constantly increases.The processing of screen casing is cold working or the hot-working means of adopting on the higher steel tube body of intensity, cuts hundreds and thousands of longitudinal slots.Slit commonly used specification limit is: seam width 0.15-3 millimeter, and gap length 50-200 millimeter, the cross section kind has: rectangle, trapezoidal, special shape etc. are multiple, and the circular hole screen casing is also arranged.The manufacturing process of screen casing hole seam mainly contains the milling method of use sheet and the filing of sheet emery wheel.These two kinds of methods are because milling grinding quantitative limitation not only makes working (machining) efficiency low, and the minimum slit of cutting is all more than 0.35 ± 0.05 millimeter.Several families such as the auspicious rich petroleum technology of present domestic Wuhan Chinese workers' laser engineering Co., Ltd, Tianjin laser research institute and Shandong Dongying City Development Co., Ltd adopt laser cutting sieve tube, in its punching or cutting process, " blast hole " and " burning wide " situation is serious, and two every of mass defects reach more than 10%.And " blast hole " and " burning wide " surpass require 8% of width/, just do not reach limited sand control effect, well-digging is generally low-alloy steel with pipe, and well casing can not weld and API requires down, must control the quality of Laser Processing screen casing for this reason, make screen casing mass defect rate≤5%.
Summary of the invention
Technical problem to be solved by this invention is, a kind of quality that can control the Laser Processing screen casing is provided, and makes the control technology of the laser cutting sieve tube of screen casing mass defect rate≤5%.
The technical solution adopted in the present invention is: a kind of control technology of laser cutting sieve tube includes following technical process:
(1) determines required software according to the definite relevant parameter of processing of the parameter of processed body, and according to machined parameters;
(2) determine equipment distribution index;
(3) carry out cutting operation, comprising: before the processing body surface handled, cuts in the overall process body cooled off to eliminate in heat build-up, the cutting overall process and heat up in a steamer with oxide and dispose carrying out dynamic deironing in the body;
(4) cutting finishes and carries out quality examination, the underproof waste product collecting frame of sending into; The establishment operation complete report list and the shipping finished product that conform to quality requirements.
Adopt laser cutting sieve tube, can effectively solve the wide joint-cutting of 0.2mm-0.3mm seam that mechanical machine tool can't resolve.Particularly adopt this method, more effectively overcome in punching or cutting process, the situation of " blast hole " and " burning wide " occurs, make mass defect rate≤5% of processing screen casing.
Description of drawings
Fig. 1 is processing process figure of the present invention.
Fig. 2 is a screen casing machining software program flow diagram of the present invention.
The specific embodiment
Provide specific embodiment below in conjunction with accompanying drawing, further specify the present invention and how to realize.
As shown in Figure 1, the control technology of laser cutting sieve tube includes following processing step:
(1) determine employed software according to the definite parameter of processing of the parameter of processed body, and according to machined parameters, wherein the parameter of processed body includes: the model of body, specification, length, weight, grade of steel, grade of steel, wall thickness tolerance.
(2) determine equipment distribution index, oxygen is selected medical oxygen for use; The purity of nitrogen, helium and carbon dioxide is 99.995%; Moisture in the compressed air, oily impurity＜20ppm.
(3) carry out cutting operation, comprising: before the processing body surface handled, cuts in the overall process body cooled off to eliminate in heat build-up, the cutting overall process and heat up in a steamer with oxide and dispose carrying out dynamic deironing in the body.
Wherein: before the processing body surface is handled, comprise oil, oil-soluble antirust lacquer, the identification lacquer removed on the processed body;
Heat up in a steamer with oxide and dispose carrying out dynamic deironing in the body in the cutting overall process, specific practice is: the pipe of one section diameter less than the processed pipe diameter is set in pipe, when processed pipe is rotated, the opposite direction of the Guan Yuqi that drive is inserted is rotated, thereby preventing effectively that the processed pipe inwall from producing long-pendingly heats up in a steamer with oxide etc. and effectively remove and long-pendingly heat up in a steamer with oxide etc.
(4) cutting finishes and carries out quality examination, the underproof waste product collecting frame of sending into; The establishment operation complete report list and the shipping finished product that conform to quality requirements.
The processing of this screen casing is carried out on the carbon dioxide flying-optics laser cutting machine.This cutting machine itself has the software cutting process, its cutting process as shown in Figure 2, concrete steps are: 1: open the flight switch; 2: open mechanical optical gate, distribution, cooling water switch; 3: open the anticollision instruction; 4: judge whether long measure is " metric system ", if metric system then directly entered for the 6th step; 5:, be defined as entering for the 6th step after the English system if not metric system; 6: the input absolute value; The 7:Z axle is located at a high speed; The 8:B axle returns zero location fast; 9:X, Y-axis are located fast; 10: determine body radius, wall thickness; 11: determine the incision original position; 12: judge whether B, Z, X, Y-axis have located correctly; If incorrectly returned for the 7th step and position again, if correctly then enter next step; 13: determine the grade of steel parameter; 14: determine processing (cutting) program; 15: call the cutting subprogram, this subprogram comprises determining that focal position of laser, cutting parameter, common ratio, gas pressure, frequency, water, cutting speed, gas are delayed time; 16: processing (cutting) beginning; 17: whether also continue processing after technical process finishes? then returned for the 15th step if continue processing; Do not enter next step if do not need to continue processing; 18: the processing end-of-job reentered for the 1st step.
Claims (3)
1. the control technology of a laser cutting sieve tube is characterized in that including following technical process:
(1) determines required software according to the definite parameter of processing of the parameter of processed body, and according to machined parameters;
(2) determine equipment distribution index;
(3) carry out cutting operation, comprising: before the processing body surface handled, cuts in the overall process body cooled off to eliminate in heat build-up, the cutting overall process and heat up in a steamer with oxide and dispose carrying out dynamic deironing in the body;
(4) cutting finishes and carries out quality examination, the underproof waste product collecting frame of sending into; The establishment operation complete report list and the shipping finished product that conform to quality requirements.
2. the control technology of laser cutting sieve tube according to claim 1 is characterized in that the parameter of processed body includes: model, specification, length, weight, grade of steel, grade of steel, wall thickness tolerance.
3. the control technology of laser cutting sieve tube according to claim 1, it is characterized in that determining that equipment distribution index includes: oxygen is selected medical oxygen for use; The purity of nitrogen, helium and carbon dioxide is 99.995%; Moisture in the compressed air, oily impurity＜20ppm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02131032.7A CN1166489C (en) | 2002-09-26 | 2002-09-26 | Control process for laser cutting sieve tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02131032.7A CN1166489C (en) | 2002-09-26 | 2002-09-26 | Control process for laser cutting sieve tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1408499A true CN1408499A (en) | 2003-04-09 |
| CN1166489C CN1166489C (en) | 2004-09-15 |
Family
ID=4746542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02131032.7A Expired - Fee Related CN1166489C (en) | 2002-09-26 | 2002-09-26 | Control process for laser cutting sieve tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1166489C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890582A (en) * | 2010-06-30 | 2010-11-24 | 北京宏诚拓业科技发展有限公司 | Laser processing method for steel sieve tube slit |
| CN102205465A (en) * | 2010-03-31 | 2011-10-05 | 杨贺来 | Method for processing trapezoidal slit sieve tube |
| WO2012000193A1 (en) * | 2010-06-30 | 2012-01-05 | 北京宏诚拓业科技发展有限公司 | Laser processing method for slots of steel screen pipe |
| CN101733555B (en) * | 2009-11-26 | 2012-02-15 | 天津钢管集团股份有限公司 | Method for processing trapezoidal slit screen pipes by using laser |
| CN101786203B (en) * | 2009-12-15 | 2012-11-21 | 深圳市大族激光科技股份有限公司 | Variable-power working device for laser, punching equipment and method thereof |
-
2002
- 2002-09-26 CN CN02131032.7A patent/CN1166489C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101733555B (en) * | 2009-11-26 | 2012-02-15 | 天津钢管集团股份有限公司 | Method for processing trapezoidal slit screen pipes by using laser |
| CN101786203B (en) * | 2009-12-15 | 2012-11-21 | 深圳市大族激光科技股份有限公司 | Variable-power working device for laser, punching equipment and method thereof |
| CN102205465A (en) * | 2010-03-31 | 2011-10-05 | 杨贺来 | Method for processing trapezoidal slit sieve tube |
| CN101890582A (en) * | 2010-06-30 | 2010-11-24 | 北京宏诚拓业科技发展有限公司 | Laser processing method for steel sieve tube slit |
| WO2012000193A1 (en) * | 2010-06-30 | 2012-01-05 | 北京宏诚拓业科技发展有限公司 | Laser processing method for slots of steel screen pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1166489C (en) | 2004-09-15 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20040915 Termination date: 20110926 |