CN108823366A - A kind of surface recombination reinforcing technique remanufactured for waste and old sucker rod - Google Patents
A kind of surface recombination reinforcing technique remanufactured for waste and old sucker rod Download PDFInfo
- Publication number
- CN108823366A CN108823366A CN201810561926.6A CN201810561926A CN108823366A CN 108823366 A CN108823366 A CN 108823366A CN 201810561926 A CN201810561926 A CN 201810561926A CN 108823366 A CN108823366 A CN 108823366A
- Authority
- CN
- China
- Prior art keywords
- sucker rod
- carried out
- quenching
- tempering
- waste
- 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.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
- C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
Abstract
The invention discloses a kind of surface recombination reinforcing techniques remanufactured for waste and old sucker rod comprising following steps：Choose the waste and old sucker rod blanking for being suitble to remanufacture；Mid-frequency induction heating is carried out to hot sucker rod, to melt its oily, wax remained on surface；Clean sucker rod；The screw thread on sucker rod surface is repaired；First time Tempering and Quenching is carried out to sucker rod, so that forming tempered sorbite tissue in sucker rod；Second of Tempering and Quenching is carried out to sucker rod, so that the surface of sucker rod forms the lath martensite tissue of one layer of high density dislocation；Throwing pill strengthening processing is carried out to sucker rod surface；Finish coatings and shipment are carried out to sucker rod.Compared with prior art, the reparation that surface recombination reinforcing technique of the present invention can be realized waste and old sucker rod remanufactures, so that the service life of the sucker rod extended, reduces production cost.
Description
Technical field
The present invention relates to heat treatment and process for modifying surface field, especially a kind of tables remanufactured for waste and old sucker rod
Face composite reinforcement process.
Background technique
Sucker rod is the slender rod piece of rod-pumped well, connects polished rod on it, under connect the effect that oil pumping pumps up transmitting power.Work as pumping
When the access times of beam hanger are more than predetermined value, the tensile strength and fatigue strength of sucker rod are unable to satisfy requirement, to report
It is useless, need replacing new sucker rod.
Usage amount of the sucker rod in rod-pumped well is very big, and production is continually greatly improved with the sucker rod renewed
Cost.
Summary of the invention
The present invention in view of the above-mentioned problems, provide a kind of surface recombination reinforcing technique remanufactured for waste and old sucker rod,
Its specific technical solution is as follows：
A kind of surface recombination reinforcing technique remanufactured for waste and old sucker rod comprising following steps：
Choose the waste and old sucker rod blanking for being suitble to remanufacture；
Mid-frequency induction heating is carried out to hot sucker rod, to melt its oily, wax remained on surface；
Clean sucker rod；
The screw thread on sucker rod surface is repaired；
First time Tempering and Quenching is carried out to sucker rod, so that forming tempered sorbite tissue in sucker rod；
Second of Tempering and Quenching is carried out to sucker rod, so that the surface of sucker rod forms the lath of one layer of high density dislocation
Martensitic structure；
Throwing pill strengthening processing is carried out to sucker rod surface；
Finish coatings and shipment are carried out to sucker rod.
Further, the first time Tempering and Quenching successively includes mid frequency induction hardening step and intermediate frequency high tempering step；
Second of Tempering and Quenching successively includes high frequency shell quenching Step and waste heat low-temp temper step.
Further, further include between the first time Tempering and Quenching step and second of Tempering and Quenching step
There is straightening step.
Further, the throwing pill strengthening processing is as follows：The hardness of shot is HRC55-60, is the ratio of the shot of 0.8mm
Example is at least 85%, and shot blasting velocity is at least 70m/s, and ball blast intensity is the test piece of 0.4-0.45mm/A Almen, and coverage rate is at least
It is 98%.
Compared with prior art, surface recombination reinforcing technique of the present invention can repair the screw thread on waste and old sucker rod surface and extensive
Answering its tensile strength and fatigue strength reduces production cost so that the reparation for realizing waste and old sucker rod remanufactures.
Specific embodiment
In a specific embodiment, the surface recombination reinforcing technique remanufactured provided by the present invention for waste and old sucker rod
Include the following steps：
(1), the waste and old sucker rod blanking for being suitble to remanufacture is chosen；
(2), sucker rod is placed in intermediate frequency inductor and carries out mid-frequency induction heating, to melt its oily, wax remained on surface；
(3), sucker rod is placed in oil, the wax that its surface is washed away in cleaning device；
(4), the screw thread on sucker rod surface is repaired；
(5), first time Tempering and Quenching is carried out to sucker rod, the first time Tempering and Quenching successively includes mid frequency induction hardening
Step and intermediate frequency high tempering step, the hardening heat of mid frequency induction hardening therein are 600 DEG C -650 DEG C.
The first time Tempering and Quenching can form tempered sorbite tissue in sucker rod, so that sucker rod has
Standby good comprehensive mechanical performance.
(6), sucker rod is aligned；
(7), second of Tempering and Quenching is carried out to sucker rod, second of Tempering and Quenching successively includes high frequency shell
Quenching Step and waste heat low-temp temper step.
Second of Tempering and Quenching makes the surface of sucker rod form the high density position that a layer thickness is 1.5-2.5mm
Wrong lath martensite tissue is provided simultaneously with enough toughness so that sucker rod not only has very high tensile strength.
(8), throwing pill strengthening processing is carried out to the surface of sucker rod, to further promote the tension of the sucker rod after repairing
Intensity and fatigue strength.
The specific control of throwing pill strengthening processing is as follows：The hardness of shot is HRC55-60, is the ratio of the shot of 0.8mm
At least 85%, shot blasting velocity is at least 70m/s, and ball blast intensity is the test piece of 0.4-0.45mm/A Almen, and coverage rate is till death
98%.
(9), finish coatings and shipment are carried out to the sucker rod after reparation.
The screw thread on waste and old sucker rod surface can be repaired by surface recombination reinforcing technique of the invention and restores its tension
Intensity and fatigue strength reduce production cost so that the reparation for realizing waste and old sucker rod remanufactures.
It is verified, the performances such as tensile strength and the fatigue strength of the waste and old D grade pumping rod after manufacture are repaired using the present invention
Index can reach the level of craft type super-strength sucker rod.
The description with certain particularity detailed enough has been carried out to the present invention above.Ordinary skill in fields
Personnel are it should be understood that the description in embodiment is only exemplary, before without departing from true spirit and scope of the present invention
Put make it is all change all should belong to protection scope of the present invention.Scope of the present invention is by the power
What sharp claim was defined, rather than limited by the foregoing description in embodiment.
Claims (4)
1. a kind of surface recombination reinforcing technique remanufactured for waste and old sucker rod, which is characterized in that it includes the following steps：
Choose the waste and old sucker rod blanking for being suitble to remanufacture；
Mid-frequency induction heating is carried out to hot sucker rod, to melt its oily, wax remained on surface；
Clean sucker rod；
The screw thread on sucker rod surface is repaired；
First time Tempering and Quenching is carried out to sucker rod, so that forming tempered sorbite tissue in sucker rod；
Second of Tempering and Quenching is carried out to sucker rod, so that the surface of sucker rod forms the lath geneva of one layer of high density dislocation
Body tissue；
Throwing pill strengthening processing is carried out to sucker rod surface；
Finish coatings and shipment are carried out to sucker rod.
2. surface recombination reinforcing technique as described in claim 1, it is characterised in that：
The first time Tempering and Quenching successively includes mid frequency induction hardening step and intermediate frequency high tempering step；
Second of Tempering and Quenching successively includes high frequency shell quenching Step and waste heat low-temp temper step.
3. surface recombination reinforcing technique as described in claim 1, it is characterised in that：The first time Tempering and Quenching step with
It further include having straightening step between second of Tempering and Quenching step.
4. surface recombination reinforcing technique as described in claim 1, it is characterised in that：The throwing pill strengthening processing is as follows：Shot
Hardness be HRC55-60, diameter is that the ratio of shot of 0.8mm is at least 85%, and shot blasting velocity is at least 70m/s, and ball blast is strong
Degree is the test piece of 0.4-0.45mm/A Almen, and coverage rate is at least 98%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810561926.6A CN108823366A (en) | 2018-06-04 | 2018-06-04 | A kind of surface recombination reinforcing technique remanufactured for waste and old sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810561926.6A CN108823366A (en) | 2018-06-04 | 2018-06-04 | A kind of surface recombination reinforcing technique remanufactured for waste and old sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108823366A true CN108823366A (en) | 2018-11-16 |
Family
ID=64143441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810561926.6A Pending CN108823366A (en) | 2018-06-04 | 2018-06-04 | A kind of surface recombination reinforcing technique remanufactured for waste and old sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108823366A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111876560A (en) * | 2020-07-23 | 2020-11-03 | 中国北方车辆研究所 | Composite strengthening method for friction plate tooth part |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1766335A (en) * | 2004-10-26 | 2006-05-03 | 石油大学(华东) | Repair method for improving pumping rod strength |
| CN102699629A (en) * | 2012-05-29 | 2012-10-03 | 吕少华 | Production method and remanufacturing method for hollow sucker rods |
-
2018
- 2018-06-04 CN CN201810561926.6A patent/CN108823366A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1766335A (en) * | 2004-10-26 | 2006-05-03 | 石油大学(华东) | Repair method for improving pumping rod strength |
| CN102699629A (en) * | 2012-05-29 | 2012-10-03 | 吕少华 | Production method and remanufacturing method for hollow sucker rods |
Non-Patent Citations (1)
| Title |
|---|
| 谭邦才: "表面复合强化新工艺在抽油杆修复中的应用", 《石油机械》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111876560A (en) * | 2020-07-23 | 2020-11-03 | 中国北方车辆研究所 | Composite strengthening method for friction plate tooth part |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181116 |
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| RJ01 | Rejection of invention patent application after publication |