CN201190542Y - Anti-corrosive pump rod joint of tungsten alloy - Google Patents
Anti-corrosive pump rod joint of tungsten alloy Download PDFInfo
- Publication number
- CN201190542Y CN201190542Y CNU2007201849406U CN200720184940U CN201190542Y CN 201190542 Y CN201190542 Y CN 201190542Y CN U2007201849406 U CNU2007201849406 U CN U2007201849406U CN 200720184940 U CN200720184940 U CN 200720184940U CN 201190542 Y CN201190542 Y CN 201190542Y
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- joint hoop
- plating
- tungsten alloy
- tungsten
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Abstract
The utility model relates to a tungsten alloy corrosion resistant pumping rod joint hoop which is provided with a circular pipe joint hoop body. The middle section of the external circumference of a circular pipe of the joint hoop body is provided with a wrench square, the circular pipe joint hoop body is provided with inside threads which are matched with outside threads of rod heads at the both ends of a pumping rod, and the outer surface of the circular pipe joint hoop body is compounded with a tungsten based amorphous alloy plating which is compounded by the nano film tungsten alloy electroplating art. The nano film tungsten alloy electroplating art is formed by adopting the special plating art and reasonable plating alloy, thereby the alloy plating is enabled to have the advantages of high hardness, favorable wear resistance, strong corrosion resistance, favorable binding force with a base, and the like., and products used by the nano film tungsten alloy electroplating art have series plating kinds. The utility model uses the nano film tungsten alloy electroplating art to compound the tungsten based amorphous alloy plating on the outer surface of the pumping rod joint hoop, therefore, the outer surface of the pumping rod joint hoop has the advantages of high hardness, favorable wear resistance and favorable corrosion resistance, the manufactured pumping rod joint hoop has favorable corrosion resistance and wear resistance as well as long service life.
Description
Technical field
The utility model relates to a kind of rod collar, particularly a kind of composite bed of rod collar external surface.
Background technology
Sucker rod is the vitals of sucker rod pumping equipment, and the two ends of sucker rod have and have externally threaded bar head, and sucker rod is to link to each other successively with female tubular rod collar the transmission of power of oil pumper to be given the oil well pump of down-hole.Rod collar is a tubular, and there is spanner side in the excircle stage casing of rod collar, and rod collar has the internal thread that matches with the external screw thread of sucker rod two ends bar head.The rod collar of connection sucker rod will contact the well liquid in the oil well when the oil pumping operation, contain H in the well liquid in the oil well
2S, CO
2, Cl
-, SO
4 2-, H
2O, mould and other comprehensive corrosion factors and hard solid suspended particle, during oil pumping, rod collar can be subjected to the abrasion and the interior H of well liquid of solid suspended particle hard in the well liquid
2S, CO
2, Cl
-, SO
4 2-, H
2O, the corrosion of mould and other comprehensive corrosion factors, after using a period of time, rod collar can lose efficacy because of being denuded and corroding, rod collar not only requires the intensity height of entity, also require the external surface of rod collar that higher comprehensive physical and chemical performance is arranged, it mainly is the external surface hardness height of requirement rod collar, abrasion resistance is strong, good corrosion resistance, in order to improve the comprehensive physical and chemical performance of rod collar external surface, in the prior art, it is the physical and chemical performance that improves the rod collar external surface with modified method, can on certain degree, improve the hardness and the abrasion resistance of rod collar external surface with modified method, but the raising to corrosion resistance is little, along with oil well is more and more darker, the environment of down-hole is more and more harsher, and this rod collar can not satisfy the requirement of oil pumping.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, to propose the tungsten alloy anti-corrosion pumping bar box cupling that a kind of external surface has the composite electroplated layer of excellent comprehensive physical and chemical performance.
The utility model is realized with the following method.
Tungsten alloy anti-corrosion pumping bar box cupling has tubular box cupling body, there is spanner side in the excircle stage casing of box cupling body, the box cupling body has the internal thread that matches with the external screw thread of sucker rod two ends bar head, and the external surface of tubular box cupling body is compounded with the compound tungsten based amorphous attitude alloy layer of usefulness " Na Feier " tungsten alloy electroplating technology.
" Na Feier " tungsten alloy electroplating technology is the up-to-date scientific and technological achievement that ChangSha, Hunan Province outstanding person Science and Technology Ltd. works out; this technology is by the induction and deposition principle; can go out tungsten based amorphous attitude alloy layer in the aqueous solution in the metal surface electro-deposition; owing to adopt special process for plating and rational coating alloy composition; make alloy layer have the hardness height; abrasion resistance is good; corrosion resistance is strong; with characteristics such as the adhesion of matrix is good; the alloy layer main component is a tungsten; nickel; iron; do not contain the chromium element fully; compare with chromium plating; water-saving; power saving and do not have chromic pollution; be the environmental protection technology of resources conservation comprehensive utilization, can replace original chromium plating technology comprehensively.The product that " Na Feier " tungsten alloy electroplating technology that ChangSha, Hunan Province outstanding person Science and Technology Ltd. produces is used has serial plating products such as YC-4, YC-5201, YC-5202.
The utility model is compounded with tungsten based amorphous attitude alloy layer at the external surface of rod collar with " Na Feier " tungsten alloy electroplating technology, make strong, the good corrosion resistance of external surface hardness height, abrasion resistance of rod collar, the rod collar of making is corrosion-resistant and the abrasion performance is good, and application life is longer.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is the schematic diagram of tungsten alloy anti-corrosion pumping bar box cupling;
Fig. 2 is the A-A schematic cross-section of Fig. 1;
Fig. 3 is the I place enlarged diagram of Fig. 1.
The specific embodiment
Among Fig. 1, Fig. 2, Fig. 3, tungsten alloy anti-corrosion pumping bar box cupling has tubular box cupling body 1, there is spanner side 2 in the pipe excircle stage casing of box cupling body, the box cupling body has the internal thread 3 that matches with the external screw thread of sucker rod two ends bar head, and the external surface of tubular box cupling body is compounded with the compound tungsten based amorphous attitude alloy layer 4 of usefulness " Na Feier " tungsten alloy electroplating technology
Above-mentioned tungsten based amorphous attitude alloy layer can be the tungsten based amorphous attitude alloy that main component has tungsten, nickel, ferro element.Tungsten based amorphous attitude alloy layer also can be the tungsten based amorphous attitude alloy that main component has tungsten, nickel, P elements.
Claims (1)
1. tungsten alloy anti-corrosion pumping bar box cupling, tubular box cupling body is arranged, there is spanner side in the excircle stage casing of box cupling body, the box cupling body has the internal thread that matches with the external screw thread of sucker rod two ends bar head, it is characterized in that: the external surface of tubular box cupling body is compounded with the compound tungsten based amorphous attitude alloy layer of usefulness " Na Feier " tungsten alloy electroplating technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201849406U CN201190542Y (en) | 2007-12-20 | 2007-12-20 | Anti-corrosive pump rod joint of tungsten alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201849406U CN201190542Y (en) | 2007-12-20 | 2007-12-20 | Anti-corrosive pump rod joint of tungsten alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201190542Y true CN201190542Y (en) | 2009-02-04 |
Family
ID=40334701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201849406U Expired - Fee Related CN201190542Y (en) | 2007-12-20 | 2007-12-20 | Anti-corrosive pump rod joint of tungsten alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201190542Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936138A (en) * | 2010-09-02 | 2011-01-05 | 北京百利时能源技术有限责任公司 | Oil-sucking polished rod and production method thereof |
| CN102003148A (en) * | 2010-09-17 | 2011-04-06 | 北京百利时能源技术有限责任公司 | Oil casing pipe resisting CO2 corrosion and production method thereof |
-
2007
- 2007-12-20 CN CNU2007201849406U patent/CN201190542Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936138A (en) * | 2010-09-02 | 2011-01-05 | 北京百利时能源技术有限责任公司 | Oil-sucking polished rod and production method thereof |
| CN102003148A (en) * | 2010-09-17 | 2011-04-06 | 北京百利时能源技术有限责任公司 | Oil casing pipe resisting CO2 corrosion and production method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090204 Termination date: 20131220 |