CN101775963B - Nylon66-packaged ceramic pellet centering guide - Google Patents
Nylon66-packaged ceramic pellet centering guide Download PDFInfo
- Publication number
- CN101775963B CN101775963B CN2010100308334A CN201010030833A CN101775963B CN 101775963 B CN101775963 B CN 101775963B CN 2010100308334 A CN2010100308334 A CN 2010100308334A CN 201010030833 A CN201010030833 A CN 201010030833A CN 101775963 B CN101775963 B CN 101775963B
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- ceramic pellet
- nylon66
- centering guide
- pellet
- alumina ceramic
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Abstract
The invention discloses a nylon66-packaged ceramic pellet centering guide. The nylon66-packaged ceramic pellet centering guide is characterized in that: an oil pumping rod is provided with a zirconium oxide-toughened aluminum oxide ceramic pellet; the centre of the zirconium oxide-toughened aluminum oxide ceramic pellet is provided with an arch-shaped gap; the two ends of the zirconium oxide-toughened aluminum oxide ceramic pellet are provided with through holes; and the nylon66 serves as a package body to package the zirconium oxide-toughened aluminum oxide ceramic pellet therein and is connected to the oil pumping rod. A structural design of an abrasion-resistant zirconium oxide-toughened aluminum oxide ceramic pellet is added in a nylon66 substrate, so that the centering guide has higher abrasion resistance and anti-corrosion performance; the centering guide of the invention is prepared on the oil pumping rod by adopting an injection method, and has the characteristics of simple process, high production efficiency, and obvious good abrasion resistance and anti-corrosion effects compared with those of the common nylon66 centering guide.
Description
Technical field
The present invention relates to a kind of structure design of wear-resistant, anticorrosion nylon 66-packaged ceramic pellet centering guide.
Background technology
Because oxide ceramics has good wear-resisting, corrosion-resistant and favorable mechanical performance, therefore manufacture wear parts at the increasing oxide ceramic material of selecting for use of numerous areas.Past, these wear parts multiselects were used the conventional aluminium oxide ceramic material, and this kind ceramic materials can satisfy under the general work environment requirement to its anti-wear performance.But in recent years along with the progress and development of ceramic technology, the ceramic component in some field with the conventional aluminium oxide ceramic, its abrasion resistance and mechanical strength can not satisfy job requirement, must adopt higher, the better ceramic materials of abrasion resistance of intensity.Zirconia reinforced alumina ceramic material (being called for short ZTA) mainly is in alumina substrate, to introduce the formed a kind of diphase ceramic material of a certain amount of phase-change material zirconia.This composite diphase material has promptly kept the characteristics of aluminium oxide ceramics high rigidity, shows zirconia ceramics high tenacity, high-intensity characteristic again.
Centralizer is the important structure part that is used for protecting sucker rod and the wearing and tearing of bar box cupling in the oil recovery machiner, not only receives the corrosion of well liquid under arms in the process, in inclined shaft and horizontal well production process, with oil pick-up tube serious eccentric wear often takes place also.After centralizer lost efficacy, made bar box cupling and sucker rod direct friction, disconnected the taking off or the rubbing of sucker rod that causes the bar box cupling.These failure modes all can cause the stopping production of oil well, and therefore, corrosion resistance and abrasion resistance are the decision important indicators in its application life.Present domestic centralizer material adopts Reinforced Nylon 66, polytetrafluoroethylene (PTFE) etc. more.During the supporting use of Reinforced Nylon 66 centralizers and common J55, N80 and P110 steel oil pipe, show reasonable abrasion resistance and corrosion resistance.But when adopting supporting uses of ceramic liner composite oil pipe of self-propagating high-temperature centrifugal process preparation, owing to Al
2O
3Ceramic-lined hardness is higher, and between HV1200-HV1300, Reinforced Nylon 66 life-span in inclined shaft and horizontal well is very short, and two weeks to two month will lose efficacy in heavy wear.Therefore research and development have remarkable advantages more with ceramic liner composite oil pipe is matching used aspect abrasion resistance and the corrosion resistance.
Summary of the invention
The object of the invention provides a kind of wear-resistant, etch-proof nylon 66 parcel ZTA ceramic pellet centering guides.
For realizing above-mentioned purpose; The present invention provides a kind of nylon 66-packaged ceramic pellet centering guide; It is characterized in that: sucker rod is provided with the Zirconia reinforced alumina ceramic pellet; In the middle of the Zirconia reinforced alumina ceramic pellet is an arch breach, and there is through hole at two ends, and nylon 66 wraps up the Zirconia reinforced alumina ceramic pellet wherein and is connected on the sucker rod as inclusion enclave.
The ZrO of Zirconia reinforced alumina ceramic pellet
2Content be 10%-20%, the tissue by Al
2O
3Particle be positioned at ZrO on the border
2Form, hardness is HV1500-1600.
Zirconia reinforced alumina ceramic pellet thickness is 10-13mm, and the minimum thickness at arch place is 8-10mm.
Adopt the effect and the advantage of nylon 66 parcel Zirconia reinforced alumina ceramic pellet centralizers of the present invention:
1. a kind of wear-resisting, corrosion resistant centralizer is provided,, has made centralizer have higher abrasion resistance and Corrosion Protection through in nylon 66 matrixes, increasing the structure design of wear-resisting Zirconia reinforced alumina ceramic pellet;
2. the present invention can adopt injection moulding on sucker rod, to prepare centralizer of the present invention on the sucker rod fixedly behind the Zirconia reinforced alumina ceramic pellet, and activities is simple, and production efficiency is high.
3. wear-and corrosion-resistant effect of the present invention obviously is superior to common nylon 66 centralizers.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a Zirconia reinforced alumina ceramic pellet positioning fixture structural representation.
The specific embodiment
With reference to Fig. 1; The present invention is provided with four Zirconia reinforced alumina ceramic pellets 2 evenly to distribute at a distance from an angle of 90 degrees on sucker rod 3; In the middle of the Zirconia reinforced alumina ceramic pellet is an arch breach, and there is through hole at two ends, and four Zirconia reinforced alumina ceramic pellets are as the anti abrasive main body of centralizer; Nylon 66 material 1 wraps up four Zirconia reinforced alumina ceramic pellets wherein and is connected on the sucker rod through injection moulding process as inclusion enclave.The ZrO of Zirconia reinforced alumina ceramic pellet
2Content be 10%, Al
2O
3The content of particle is 90%, and hardness is HV1500-1600, ceramic pellet be shaped as strip, the centre is an arch breach, length is 65mm, thickness is 10mm, the minimum thickness at arch place is 8mm.
Embodiment 2
Structure is with embodiment 1, the ZrO of Zirconia reinforced alumina ceramic pellet
2Content be 15%, Al
2O
3The content of particle is 85%, and hardness is HV1500-1600, and length is 70mm, and thickness is 12mm, and the minimum thickness at arch place is 9mm.
Structure is with embodiment 1, the ZrO of Zirconia reinforced alumina ceramic pellet
2Content be 20%, Al
2O
3The content of particle is 80%, and hardness is HV1500-1600, and length is 75mm, and thickness is 13mm, and the minimum thickness at arch place is 10mm.
With reference to Fig. 2, manufacturing approach is following:
1, positioning fixture is assembled on the sucker rod; Attention: anchor clamps are should be able to be on bar more movable, and the surface is too coarse or the bar of obvious rusty stain and oxide skin is arranged, and needs with gauze or smooth, the polishing of blunt file light pruning at the place of laying; To remove iron rust and oxide skin, guarantee bonding quality;
2, the Zirconia reinforced alumina ceramic pellet is put in four grooves of anchor clamps;
3, gluing method is installed accurately location, sticks on the lever arm of sucker rod, with wiring or leather sheath the Zirconia reinforced alumina ceramic pellet is locked on the positioning fixture; After 10～30 minutes, after looking gelling and strengthening admittedly, remove positioning fixture again; Should in time clear up the cull on the positioning fixture; In order to avoid influence positioning accuracy, occur taking article, before injection moulding with wiring pinch off, removal;
4, inspection: should in time check Zirconia reinforced alumina ceramic pellet accurate positioning situation, the dislocation of Zirconia reinforced alumina ceramic pellet surpasses 2mm, or the overproof 2mm of accumulative total, is defective;
5, with good and sound Zirconia reinforced alumina ceramic pellet sucker rod put on the yoke, being spaced from each other placement must not collide;
6, bonding installation Zirconia reinforced alumina ceramic pellet is after 1 hour, and sucker rod is put into the lower mode cavity of injection mould, and is careful about mould, matched moulds, injection moulding centralizer;
7, during injection moulding sucker rod middle part Zirconia reinforced alumina ceramic pellet, bracket supports need be used in the sucker rod both sides, so that sucker rod drops in the lower mode cavity reposefully; After aligning, when close die, need choose and comfort the oil pumping body of rod in both sides; So that it is steady, accurate matched moulds.
Test Example 1
On MG2000 pin-disc type abrasion tester, carry out wear test, lubricant medium is an oilfield sewage, and the plastic pipe through diameter 3mm drops on the frictional interface with the flow velocity of 20/min.Sample is the pin of φ 6mm, and used load is 80N, and sliding speed is 0.4m/s, is the alumina mill of HV1600 to the dish that rubs for hardness, and under the test load of 80N, the wear rate of nylon 66 is 260 * 10
-4-360 * 10
-4Mm
3m
-1, toughness reinforcing Al
2O
3The wear rate of pottery is 5.5 * 10
-4-6.5 * 10
-4Mm
3m
-1, wear rate is the 2%-3% of nylon 66.
Test Example 2
Carry out nylon 66-packaged ceramic pellet centering guide and ceramic liner composite oil pipe and join the contrast wear test that pair and nylon 66 centralizers and plain tubing are joined pair.On the sliding wear testing machine, carry out, the internal diameter of ceramic liner composite oil pipe friction pair is 57mm, and the internal diameter of plain tubing is 62mm; Lubricant emulsion is put into corresponding oil pipe with the centralizer of material different, applies the load of 300N; Move back and forth, stroke is 0.2m; Strokes per minute is 25 times/min, and frictional distance is 61.2km.The wear rate of nylon 66 parcel ceramic core centralizers is 5% of nylon 66 centralizer wear rates.
Claims (2)
1. nylon 66-packaged ceramic pellet centering guide; It is characterized in that: sucker rod is provided with the Zirconia reinforced alumina ceramic pellet; In the middle of the Zirconia reinforced alumina ceramic pellet is an arch breach; There is through hole at two ends, and nylon 66 wraps up the Zirconia reinforced alumina ceramic pellet wherein and is connected on the sucker rod as inclusion enclave; The ZrO of Zirconia reinforced alumina ceramic pellet
2Content be 10%-20%, the tissue by Al
2O
3Particle be positioned at ZrO on the border
2Form, hardness is HV1500-1600.
2. nylon 66-packaged ceramic pellet centering guide according to claim 1 is characterized in that: Zirconia reinforced alumina ceramic pellet thickness is 10-13mm, and the minimum thickness at arch place is 8-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100308334A CN101775963B (en) | 2010-01-15 | 2010-01-15 | Nylon66-packaged ceramic pellet centering guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100308334A CN101775963B (en) | 2010-01-15 | 2010-01-15 | Nylon66-packaged ceramic pellet centering guide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101775963A CN101775963A (en) | 2010-07-14 |
| CN101775963B true CN101775963B (en) | 2012-07-11 |
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ID=42512531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010100308334A Expired - Fee Related CN101775963B (en) | 2010-01-15 | 2010-01-15 | Nylon66-packaged ceramic pellet centering guide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101775963B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239934A (en) * | 2015-11-02 | 2016-01-13 | 许芳 | Integrated sucker rod ceramic columnar centralizer |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278079A (en) * | 2011-07-25 | 2011-12-14 | 李广青 | Self-lubricating same-curvature ceramic composite sucker rod centralizer |
| CN102536134A (en) * | 2012-03-05 | 2012-07-04 | 中国海洋石油总公司 | Centralizer for underground probe type measuring instrument |
| CN102938284A (en) * | 2012-12-02 | 2013-02-20 | 中国石油化工股份有限公司 | Anti-corrosion magnetic strip for magnetically-supported pumping rod centralizer |
| CN114406258B (en) * | 2022-01-25 | 2024-04-30 | 华清平耐磨科技(苏州)有限公司 | Thermite reduction reaction powder coated ZTA ceramic particles and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2361019A (en) * | 2000-04-08 | 2001-10-10 | Polyoil Ltd | Polyamide Casing Centraliser |
| CN2544088Y (en) * | 2002-07-17 | 2003-04-09 | 谷江峰 | Quick assembling stabilizer for screw rod pump |
| US6666267B1 (en) * | 1997-11-15 | 2003-12-23 | Brunel Oilfield Services (Uk) Limited | Downhole tools |
| CN201250615Y (en) * | 2008-08-08 | 2009-06-03 | 李凡 | Sucker rod columnar centralizer |
-
2010
- 2010-01-15 CN CN2010100308334A patent/CN101775963B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6666267B1 (en) * | 1997-11-15 | 2003-12-23 | Brunel Oilfield Services (Uk) Limited | Downhole tools |
| GB2361019A (en) * | 2000-04-08 | 2001-10-10 | Polyoil Ltd | Polyamide Casing Centraliser |
| CN2544088Y (en) * | 2002-07-17 | 2003-04-09 | 谷江峰 | Quick assembling stabilizer for screw rod pump |
| CN201250615Y (en) * | 2008-08-08 | 2009-06-03 | 李凡 | Sucker rod columnar centralizer |
Non-Patent Citations (1)
| Title |
|---|
| 陈德勇等.ZrO2-AL2O3两相陶瓷复合材料力学性能与增韧机制的研究.《南昌航空工业学院学报（自然科学版）》.2005,第19卷(第1期),45-48. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239934A (en) * | 2015-11-02 | 2016-01-13 | 许芳 | Integrated sucker rod ceramic columnar centralizer |
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| Publication number | Publication date |
|---|---|
| CN101775963A (en) | 2010-07-14 |
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