CN201218060Y - Tungsten alloy anti-corrosion pumping rod - Google Patents
Tungsten alloy anti-corrosion pumping rod Download PDFInfo
- Publication number
- CN201218060Y CN201218060Y CNU2007201849393U CN200720184939U CN201218060Y CN 201218060 Y CN201218060 Y CN 201218060Y CN U2007201849393 U CNU2007201849393 U CN U2007201849393U CN 200720184939 U CN200720184939 U CN 200720184939U CN 201218060 Y CN201218060 Y CN 201218060Y
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- CN
- China
- Prior art keywords
- rod
- tungsten
- alloy
- based amorphous
- sucker rod
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- Expired - Fee Related
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Abstract
A corrosion-resistant tungsten alloy sucker rod comprises a slender rod made of higher-strength alloy steel. The slender rod is provided with a rod body, both ends of the rod body are respectively provided with a rod head which is forged to be upset in thickness, the rod head is provided with a screw thread used for connecting, the external surfaces of the rod body and the rod head are compounded with a tungsten-based amorphous alloy coating through a Nafiel tungsten alloy plating technology, and the tungsten-based amorphous alloy coating comprises elements such as tungsten, nickel, iron, phosphorous, and the like. Compounded with the tungsten-based amorphous alloy coating through the Nafiel tungsten alloy plating technology, the external surface of a sucker rod is high in hardness, powerful in wearing resistance and excellent in corrosion resistance. A ready-made sucker rod is of excellent corrosion resistance and abrasiveness as well as longer service life.
Description
Technical field
The utility model relates to a kind of sucker rod, particularly a kind of composite bed of sucker rod external surface.
Background technology
Sucker rod is the vitals of sucker rod pumping equipment, and it gives the transmission of power of oil pumper the oil well pump of down-hole.Sucker rod is the elongate rod made from the alloy steel with higher-strength, and sucker rod has the body of rod, and there is the bar head that forges jumping-up at the two ends of the body of rod, has on the bar head to connect to use screw thread.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, the body of rod of sucker rod 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, sucker rod can lose efficacy because of being denuded and corroding, sucker rod not only requires the intensity height of the body of rod, also require the external surface of sucker rod that higher comprehensive physical and chemical performance is arranged, it mainly is the external surface hardness height of requirement sucker rod, abrasion resistance is strong, good corrosion resistance, in order to improve the comprehensive physical and chemical performance of sucker rod external surface, in the prior art, be to improve the body of rod of sucker rod and the physical and chemical performance of bar head external surface with modified method, can on certain degree, improve the hardness and the abrasion resistance of the body of rod and the bar head external surface of sucker rod 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, the requirement that can not satisfy oil pumping of this sucker rod external surface.
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 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.
The elongate rod that the alloy steel of the useful higher-strength of tungsten alloy anti-corrosion pumping bar is made, elongate rod has the body of rod, the two ends of the body of rod have the bar head that forges jumping-up respectively, have on the bar head to connect and use screw thread, be compounded with the compound tungsten based amorphous attitude alloy layer of usefulness " Na Feier " tungsten alloy electroplating technology at the body of rod and bar head external surface.
The method for making of tungsten alloy anti-corrosion pumping bar is:
1. the alloy steel round steel of getting higher-strength is as raw material;
At the two ends of raw material with the method for the forging thick head of upsetting out, obtain the sucker rod forging;
3. the mid frequency induction hardening of sucker rod forging, tempering, obtain the quenched-tempered sucker-rod forging;
4. the method with machining and roll extrusion processes screw thread on the bar head of the two ends of quenched-tempered sucker-rod forging forging jumping-up, obtains sucker rod;
5. use " Na Feier " tungsten alloy electroplating technology at the compound tungsten alloy coating of sucker rod external surface.
The elongate rod that the alloy steel of the useful higher-strength of the utility model is made, the external surface of elongate rod are 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 technology that is coated with 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 sucker rod with " Na Feier " tungsten alloy electroplating technology, make strong, the good corrosion resistance of external surface hardness height, abrasion resistance of sucker rod, the sucker rod 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;
Fig. 2 is the A-A schematic cross-section of Fig. 1.
The specific embodiment
Among Fig. 1, Fig. 2, the elongate rod 1 that the alloy steel of the useful higher-strength of tungsten alloy anti-corrosion pumping bar is made, elongate rod has the body of rod 2, the two ends of the body of rod have the bar head 3,4 that forges jumping-up respectively, have on the bar head to connect, be compounded with the compound tungsten based amorphous attitude alloy layer 6 of usefulness " Na Feier " tungsten alloy electroplating technology at the body of rod and bar head external surface with screw thread 5.
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, the elongate rod that the alloy steel of useful higher-strength is made, elongate rod has the body of rod, the two ends of the body of rod have the bar head that forges jumping-up respectively, have on the bar head to connect and use screw thread, it is characterized in that: be compounded with the compound tungsten based amorphous attitude alloy layer of usefulness " Na Feier " tungsten alloy electroplating technology at the body of rod and bar head external surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201849393U CN201218060Y (en) | 2007-12-20 | 2007-12-20 | Tungsten alloy anti-corrosion pumping rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201849393U CN201218060Y (en) | 2007-12-20 | 2007-12-20 | Tungsten alloy anti-corrosion pumping rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201218060Y true CN201218060Y (en) | 2009-04-08 |
Family
ID=40540896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201849393U Expired - Fee Related CN201218060Y (en) | 2007-12-20 | 2007-12-20 | Tungsten alloy anti-corrosion pumping rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201218060Y (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 |
| CN105672902A (en) * | 2016-01-18 | 2016-06-15 | 中国石油大学(华东) | Special alloy scale prevention and paraffin control sucker rod and pup joint thereof |
-
2007
- 2007-12-20 CN CNU2007201849393U patent/CN201218060Y/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 |
| CN105672902A (en) * | 2016-01-18 | 2016-06-15 | 中国石油大学(华东) | Special alloy scale prevention and paraffin control sucker rod and pup joint 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: 20090408 Termination date: 20131220 |