CN1793649A - Cyliinder jacket of slurry pump and preparation method thereof - Google Patents
Cyliinder jacket of slurry pump and preparation method thereof Download PDFInfo
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- CN1793649A CN1793649A CN 200510022729 CN200510022729A CN1793649A CN 1793649 A CN1793649 A CN 1793649A CN 200510022729 CN200510022729 CN 200510022729 CN 200510022729 A CN200510022729 A CN 200510022729A CN 1793649 A CN1793649 A CN 1793649A
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Abstract
The invention discloses a cylinder sleeve for a slurry pump, especial a slurry pump in petroleum recovery and the preparing method thereof. The cylinder sleeve comprises a carbon steel jacket and a Wu-Co-Ti alloy-made lining, where the jacket and the lining cooperate excessively, the ratio of Wu to Co to Ti in the alloy is 6:2:1.5, and C, B and Fe in the alloy account for 3% of total weight of the alloy in the ratio of 4.8-5.3 to 2.0-2.5 to 1.5-1.8. The preparing method comprises the steps of jacket and lining installing and follow-up thermal processing.
Description
Technical field
The present invention relates to a kind of cylinder sleeve for the slurry pump that uses in the slurry pump usefulness, particularly petroleum production.
Background technique
Adopting high speed, high-pressure jet drilling technology at present is the inevitable choice of oil field drilling development trend.And can only utilize the slurry pump of high reliability.Slurry pump is the heart of oil drilling worktable, and cylinder sleeve and piston are a pair of friction pairs in the slurry pump key mechanism.Because the abominable (pump pressure 17～35Mpa of working condition; piston jig frequency 100～120 times/minute; 70～170 ℃ of friction temperatures; mud sand content 3-5%; and be alkaline PH9-10) make the working life of slurry pump extremely short; easily shut down to change, have a strong impact on drilling efficiency, cause again that raw material are a large amount of to be consumed and the serious waste in equipment man-hour.Therefore, improving the working life of cylinder sleeve, is the requisite measure that improves drilling efficiency and economic benefit.
The barrel wear of slurry pump mainly is a three-body-abrasion.So-called trisome abrasive wear is meant the key element of participating in wearing and tearing directly.Friction pair is in relative movement during slurry pump work, abrasive material at first embeds in the lower surface of friction pair of surface hardness, and the wedge angle of abrasive material is another surface of friction pair of ditch dug with a plow in to-and-fro motion, produces to pull ditch dug with a plow, when the ditch dug with a plow size is big, can cause that sealing function is destroyed, accessory was lost efficacy.The corrosive action of alkaline mud is in addition more aggravated the abrasive acrion of slurry pump.Analyze the working life that to improve cylinder sleeve, just necessary surface hardness and the erosion resistance that improves it according to cylinder sleeve inefficacy damaged condition.
For improving the operating life of slurry pump, the following technical measures of available technology adopting:
Bi-metal liner by Dagang Oilfield group New Era Company is produced adopts centrifugal casting moulding, and its overcoat is a Fine Steel Casting iron, liner is a high carbon high chromium alloy cast iron, cylinder sleeve hardness reaches more than 1000 hours greater than HRC60 its working life, can bear axial pressure more than 62 tons.
Bimetal composite centrifugal casting mud slurry pump cylinder jacket by Chinese Academy Of Sciences Process Engineering Research Institute's research and development adopts composite cylinder jacket machining technique and protecting slag spun casting technology, and the internal layer of its cylinder sleeve is that high-chromium alloy cast-iron is through heat-treating profiled.The bimetal mud slurry pump cylinder jacket that adorn cold embedding technology production than the wear-resistant steel pipe baking its working life improves more than three times.
2003 by Lanzhou University of Science ﹠ Technology, Su Yixiang, the slurry pump high-performance cylinder jacket material that Wang Zhi equality is carried out is developed the powder bonded technology of using, the high-performance mud slurry pump cylinder jacket that centrifugal coated technique and electromagnetic induction forming technique are produced, and its working life is more than 1000 hours.
Beijing gold reaches the mud slurry pump cylinder jacket product of insulting the research and development of petroleum science and technology centre of development, and overcoat timesharing founding is realized one step of bi-metal liner casting in adopting, and is aided with new heat treatment and process for machining, thereby the cylinder sleeve performance is obviously improved.
At present, bimetal composite centrifugal casting mud slurry pump cylinder jacket technology maturation is accepted extensively for market, and the share that dominates the market reaches more than 90%, and material therefor is essentially rich chromium cast iron.Foreign oil company also adopts the rich chromium cast iron cylinder sleeve, as national company (National), Mi Xing company (Mission) and the Rui De company (Read) and the Russia etc. of the U.S..Show that according to information external product can reach 800-1000 hour working life at present.Look into new and investigation according to data, wear resisting cylinder jacket is best with bi-metal liner produced in USA in the world at present, reaches more than 1000 hours its working life according to report.
When bimetal composite centrifugal casting slurry pump technology improved and promotes, the research and development of slurry pump ceramic cylinder jacket had also had corresponding breakthrough and progress.Use the transformation toughening technology in modern age, make large scale bulk ceramics cylinder sleeve, be filled to inboard wall of cylinder liner, to improve working life by baking with high-ductility, high-strength toughness reinforcing oxide ceramic material.As the oil drilling high-pressure service pump ceramic cylinder jacket of University Of Tianjin development, be to make the large-size ceramic cylinder sleeve with high tenacity, high-intensity toughness reinforcing oxide ceramic material, making cylinder sleeve is 5 times of Metallic cylinder working life.
Though normal pressure-sintered toughness reinforcing oxide ceramic material toughness is higher, reaches KIC6-9Mpa, hardness is also higher, more than the Rockwell hardness HRC70; Its cylinder sleeve is 5 times of bi-metal liner working life, but in actual applications, because the toughness of pottery is relatively poor, on-the-spot pump pressure reaches 17-35Mpa, the ceramic-lined damaged deficiency that bursts often appears, make its time used have very big uncertainty, sometimes even the situation shorter service time occur than bi-metal liner.
Summary of the invention
The mud slurry pump cylinder jacket that the invention provides a kind of comparable prior art for preparing has more high hardness, higher erosion resistance and the new-type mortar pump liner of long life more.
Cylinder sleeve of the present invention constitutes by the carbon steel overcoat with the interior cover that tungsten-cobalt-titanium alloy is made, overcoat and interior inner room interference fit, tungsten wherein in the cover alloy: cobalt: titanium is 6: 2: 1.5, account for the element such as carbon, boron, iron of alloy gross weight 3% in alloy in addition, wherein the relative scale of carbon, boron, iron is an iron: boron: carbon is 4.8～5.3: 2.0～2.5: 1.5～1.8.
Cylinder sleeve of the present invention carries out carrying out temper under at least 2 650 ℃ ± 10 ℃ temperature after being shaped.
Through actual detection, cylinder sleeve main performance index of the present invention is as follows:
1, hardness is higher, and actual hardness is HRC＞70;
2, wear-resisting property is better than prior art, improves about more than 20 times than the cylinder sleeve resistance to abrasion of the existing high chromium high-carbon bimetallic material that I use;
3, can reach under the long service life, average service conditions more than 10000 hours, this is that prior art is beyond one's reach fully.
Description of drawings
Fig. 1 is a mud slurry pump cylinder jacket structural profile schematic representation of the present invention, and wherein: 1 is the overcoat of carbon steel, and 2 is the interior cover of being made by tungsten-cobalt-titanium alloy, and 3 for being located at the outer locating flange that puts.
Fig. 2 be during mud slurry pump cylinder jacket of the present invention uses the abrasion rate and working life plotted curve, wherein: abscissa is working life, unit is " moon "; Y coordinate is the wearing and tearing percentaeg.The used mud severe of this figure is 7～23.
Fig. 3 for the abrasion rate of the bi-metal liner of the existing high chromium high-carbon material that uses and working life plotted curve, wherein: abscissa is working life, unit be " my god "; Y coordinate is the wearing and tearing percentaeg.Among this figure from left to right the used mud severe of article one curve be 22; The used mud severe of second curve is 16.8; Article three, the used mud severe of curve is 12.9; Article four, the used mud severe of curve is 8.8.
Fig. 4 is the metallograph before the tempered processing of the present invention, and its Amplification factor is 400 times.
Fig. 5 is the metallograph of the present invention after 2 temper, and its Amplification factor is 400 times.
Embodiment
As seen from Figure 1, overcoat 1 of the present invention is provided with the flange 2 of location, and interference embeds interior cover 2 formations made from tungsten-cobalt-titanium alloy in overcoat 1.
Applying mechanically No. 35 steel outside of the present invention makes.Overlap in the used alloy in of the present invention, tungsten: cobalt: the ratio of titanium is 6: 2: 1.5.In addition, account for the element such as carbon, boron, iron of alloy gross weight 3% in addition in alloy, wherein iron: boron: the ratio of carbon is 4.8～5.3: 2.0～2.5: 1.5～1.8.
The present invention makes overcoat 1 and interior cover 2 with carbon steel in advance, has the magnitude of interference of 0.1～0.25mm to guarantee in guaranteeing simultaneously between the internal diameter of the external diameter of cover and overcoat.Overcoat with carbon steel is heated to 500 ℃ then, and the interior cover that tungsten-cobalt-titanium alloy is made is heated to 300 ℃, overcoat and interior cover suit is realized the stationary fit of overcoat and interior cover again.
After finishing above operation, again product integral body is carried out temper more than 2 times.This temper both can be loose because of the stress that produces being installed, the tissue of cover in can changing simultaneously.Show with relevant test that through metallographic examination the metallographic structure of interior cover has more significantly change before and after temper, referring to Fig. 4 and Fig. 5.By Fig. 4 and Fig. 5 as seen, it organizes obvious refinement, and its mechanical property is greatly improved.After testing, the product Rockwell hardness after the tempering is greater than HRC70.
Use through reality shows, the life-span of the present invention is greater than more than 10000 hours, and insensitive to the variation of the severe of mud, and its abrasion rate and working life are referring to Fig. 2.
Compare with the present invention, the anti-abrasion of existing widely used high chromium-copper bimetal cover is relatively poor, and mud severe is comparatively responsive to its influence, and its abrasion rate and working life are referring to Fig. 3.As seen from Figure 3, existing cylinder sleeve only has 9 days time of less than its working life when mud severe is 22.
Claims (3)
1, a kind of mud slurry pump cylinder jacket, comprise a tubular member, which is provided with locating flange, it is characterized in that cylinder sleeve constitutes by the carbon steel overcoat with the interior cover that tungsten-cobalt-titanium alloy is made, overcoat and interior inner room interference fit, the external diameter of the internal diameter of interior overcoat and a cover has the magnitude of interference of 0.1～0.25mm, tungsten wherein in the cover alloy: cobalt: titanium is 6: 2: 1.5, account for the element such as carbon, boron, iron of alloy gross weight 3% in alloy in addition, wherein the relative scale of carbon, boron, iron is an iron: boron: carbon is 4.8～5.3: 2.0～2.5: 1.5～1.8.
2, the preparation method of mud slurry pump cylinder jacket according to claim 1, make overcoat and interior cover with carbon steel in advance, it is characterized in that elder generation is heated to 500 ℃ with the overcoat of carbon steel, the interior cover that tungsten-cobalt-titanium alloy is made is heated to 300 ℃, overcoat and interior cover suit is realized the stationary fit of overcoat and interior cover again.
3, the preparation method of mud slurry pump cylinder jacket according to claim 2 is characterized in that cylinder sleeve carries out temper at least 2 times under 650 ℃ ± 10 ℃ temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510022729XA CN100392248C (en) | 2005-12-13 | 2005-12-13 | Cyliinder jacket of slurry pump and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510022729XA CN100392248C (en) | 2005-12-13 | 2005-12-13 | Cyliinder jacket of slurry pump and preparation method thereof |
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| Publication Number | Publication Date |
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| CN1793649A true CN1793649A (en) | 2006-06-28 |
| CN100392248C CN100392248C (en) | 2008-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200510022729XA Expired - Fee Related CN100392248C (en) | 2005-12-13 | 2005-12-13 | Cyliinder jacket of slurry pump and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101698918A (en) * | 2009-10-22 | 2010-04-28 | 甘肃省科学院磁性器件研究所 | Bearing material and preparation method thereof |
| CN103122824A (en) * | 2011-11-21 | 2013-05-29 | 上海新跃仪表厂 | Material combination type hydraulic motor |
| CN103807163A (en) * | 2014-01-22 | 2014-05-21 | 合肥精创陶瓷设备科技有限公司 | Split type slurry pump cylinder sleeve |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5810458B2 (en) * | 1978-11-09 | 1983-02-25 | 株式会社日本製鋼所 | Corrosion-resistant and wear-resistant composite material for centrifugal casting lining |
| JPS6013043A (en) * | 1983-07-05 | 1985-01-23 | Daido Steel Co Ltd | Wear- and corrosion-resistant alloy |
| CN1082676A (en) * | 1992-08-07 | 1994-02-23 | 山东省机械设计研究院 | The rare-earth Nb-Mo high carbon high chromium alloy cast iron composite mud slurry pump cylinder sleeve |
| CN2275651Y (en) * | 1996-09-16 | 1998-03-04 | 辽河石油勘探局钻井二公司 | Inserted metal-ceramic mud pump cylinder jacket |
| JP4153335B2 (en) * | 2003-03-11 | 2008-09-24 | 株式会社神戸製鋼所 | High Cr cast iron with excellent heat resistance, corrosion resistance and wear resistance |
| KR20040096756A (en) * | 2003-05-10 | 2004-11-17 | 한국전력공사 | Alloy materials for slurry pumps of flue-gas desulfurization system |
| CN2846806Y (en) * | 2005-12-13 | 2006-12-13 | 赵克中 | Mud pump cylinder jacket |
-
2005
- 2005-12-13 CN CNB200510022729XA patent/CN100392248C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101698918A (en) * | 2009-10-22 | 2010-04-28 | 甘肃省科学院磁性器件研究所 | Bearing material and preparation method thereof |
| CN101698918B (en) * | 2009-10-22 | 2012-09-19 | 甘肃省科学院磁性器件研究所 | Bearing material and preparation method thereof |
| CN103122824A (en) * | 2011-11-21 | 2013-05-29 | 上海新跃仪表厂 | Material combination type hydraulic motor |
| CN103807163A (en) * | 2014-01-22 | 2014-05-21 | 合肥精创陶瓷设备科技有限公司 | Split type slurry pump cylinder sleeve |
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| Publication number | Publication date |
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| CN100392248C (en) | 2008-06-04 |
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