CN110079738A - A kind of high-strength American Standard rare earth sucker rod round steel and preparation method thereof - Google Patents
A kind of high-strength American Standard rare earth sucker rod round steel and preparation method thereof Download PDFInfo
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- CN110079738A CN110079738A CN201910454552.2A CN201910454552A CN110079738A CN 110079738 A CN110079738 A CN 110079738A CN 201910454552 A CN201910454552 A CN 201910454552A CN 110079738 A CN110079738 A CN 110079738A
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- China
- Prior art keywords
- rare earth
- sucker rod
- strength
- round steel
- american standard
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention discloses a kind of high-strength American Standard rare earth sucker rod round steel, chemical component including following mass percent: C 0.23~0.27%, Si 0.20~0.30%, Mn 0.75~0.85%, Cr 0.50~0.60%, Mo 0.02-0.06%, Ni 0.77-0.87%, RE 0.0010-0.0030%, surplus are Fe and inevitable impurity.Preparation method is also disclosed.High-strength American Standard rare earth sucker rod round steel of the invention has good impact flexibility and anti-fatigue performance and corrosion resistant performance, improves the weaker problem of the ability for the asymmetric repeat load effect that current sucker rod is born in corrosive environment.
Description
Technical field
The present invention relates to metallurgical technology field more particularly to a kind of high-strength American Standard rare earth sucker rod round steel and its preparation sides
Method.
Background technique
Sucker rod tension-compression alternation during mechanical oil recovery acts on, and carries out continual working in reciprocating mode, long
Phase bears asymmetric repeat load effect in different degrees of corrosive environment, and current sucker rod is held in corrosive environment
The ability for the asymmetric repeat load effect received is weaker.
Summary of the invention
The object of the present invention is to provide a kind of high-strength American Standard rare earth sucker rod round steel and preparation method thereof.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of high-strength American Standard rare earth sucker rod round steel, the chemical component including following mass percent: C 0.23~
0.27%, Si 0.20~0.30%, Mn 0.75~0.85%, Cr 0.50~0.60%, Mo0.02-0.06%, Ni0.77-
0.87%, RE0.0010-0.0030%, surplus are Fe and inevitable impurity.
Further, P≤0.025% in the impurity, S≤0.025% in the impurity.
Further, the chemical component including following mass percent: C 0.23~0.27%, Si 0.20~0.30%,
Mn 0.75~0.85%, Cr 0.50~0.60%, Mo0.02-0.06%, Ni0.77-0.87%, RE0.0010-
0.0030%.
Further, the chemical component including following mass percent: C 0.25%, Si 0.26%, Mn 0.81%, Cr
0.56%, Mo 0.03%, Ni 0.78%, P 0.013%, S 0.008%, RE0.0024%.
Further, the chemical component including following mass percent: C 0.26%, Si 0.24%, Mn 0.79%, Cr
0.54%, Mo 0.04%, Ni 0.80%, P 0.012%, S 0.010%, RE0.0018%.
A kind of preparation method of high-strength American Standard rare earth sucker rod round steel, comprising:
It smelts, C content is no less than 0.06wt% in converter terminal molten steel, and P content is no more than 0.03wt%；Tapping temperature is
1620~1644 DEG C；
Refining；
Continuous casting, the degree of superheat are set as 25~35 DEG C, and pulling rate is 1.9~2.0m/min；
Rolling, start rolling temperature are 1000~1100 DEG C, and entry temperature at finishing is 900~950 DEG C.
Further, in the smelting process, one of ferrosilicon, silicomanganese, anthracite and ferrochrome, ferronickel or a variety of is added
Carry out deoxidation alloying；Tapping process carries out BOTTOM ARGON BLOWING operation to ladle.
Further, it in the refining process, is added a kind of or more in ferrosilicon, mid-carbon fe-mn, molybdenum-iron and calcination anthracite
Kind carries out trimming.
Further, the refining later period feeds silicon-calcium wire, rare earth lanthanum alloy；The soft blow time is greater than 10min.
Compared with prior art, advantageous effects of the invention:
Of the invention is adjusted to middle limit for the content of C, Si, Mn, Cr, Mo, Ni, and rare earth lanthanum alloy is in addition added in steel,
Using in rare earth lanthanum alloy and steel oxygen and sulphur there is stronger affinity to act on, can deoxidation, desulfurization, reduce oxygen content in steel and
Sulfur content, and harm of the low melting point elements such as phosphorus, hydrogen, arsenic, antimony, lead, tin on crystal boundary can be reduced.Rare earth can control sulfide
The form of field trash, sulfide is along the distribution in long strip of steel rolling direction in steel, and rare earth, which is added, so that strip is vulcanized
Object becomes ball or imitative capitate, and the size of changeable field trash, can obviously improve impact flexibility and fatigue behaviour.In addition, dilute
Soil is remarkably improved the corrosion resistance of steel in steel, extends the service life of sucker rod.
Specific embodiment
THE INDUSTRIAL TRIAL 2 furnace steel, specific process parameter control are as follows:
1, converter smelting
2000~3000kg of lime, 1000~2000kg of dolomite, iron sheet ball is added according to composition requirements when converter smelting
Ferrosilicon 130kg, silicomanganese 600kg, 900kg high carbon ferro-chrome, 1000kg nickel plate are added in tapping process by 1000~3000kg.
The carbon content of converter terminal molten steel, phosphorus content (mass percent) and tapping temperature are as shown in table 1.
The ingredient and temperature of 1 converter tapping of table
| Tapping temperature, DEG C | Tapping carbon content, wt% | Tapping phosphorus content, wt% | |
| Embodiment 1 | 1620 | 0.07 | 0.011 |
| Embodiment 2 | 1644 | 0.15 | 0.030 |
2, LF furnace refines
It carries out adding auxiliary material slag making according to molten steel composition and temperature change, adduction gold is finely adjusted and warming temperature.Lime is added
500~600kg, 200~300kg of bauxite, alloy are finely adjusted addition 50~80kg of manganese iron, ferrosilicon according to ingredient in place is refined
100~300kg, ferro-molybdenum 320kg, Rare Earth Lanthanum ferroalloy 30kg feed silicon-calcium wire, 200~300m of feed quantity after refining.
3, continuous casting
Technological parameter is listed in table 2；Product composition is listed in table 3.
2 casting parameters of table
| The degree of superheat (DEG C) | Pulling rate (m/min) | |
| Embodiment 1 | 27 | 1.9 |
| Embodiment 2 | 34 | 1.9 |
3 finished product ingredient of table (wt%, surplus are iron)
4, Rolling production
Start rolling temperature is respectively 1061 DEG C, 1065 DEG C, and entry temperature at finishing is 923 DEG C, 925 DEG C.
Carrying out 540 DEG C of media of 860 DEG C of quenching and tempering to the high-strength rare earth sucker rod round steel of above-mentioned 2 embodiments preparation is
Mechanics Performance Testing is carried out after the heat treatment of water, test result is listed in table 5.
5 Mechanics Performance Testing of table
As shown in Table 5, sucker rod round steel indices produced by the invention are all satisfied standard requirements, can satisfy user's
Use demand.
It materialses simultaneously and has carried out axial fatigue inspection in kind on PLG-200 HF fatigue testing machine.In proof stress
Under the conditions of 406Mpa, object fatigue cycle 5,000,000 times unbroken, is greater than fatigue in SY/T5029-2006 " sucker rod " standard and follows
Ring cycle is greater than 1,000,000 requirements.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
Embodiment described above is only that preferred embodiment of the invention is described, and is not carried out to the scope of the present invention
It limits, without departing from the spirit of the design of the present invention, those of ordinary skill in the art make technical solution of the present invention
Various changes and improvements, should all fall into claims of the present invention determine protection scope in.
Claims (9)
1. a kind of high-strength American Standard rare earth sucker rod round steel, which is characterized in that the chemical component including following mass percent: C
0.23~0.27%, Si 0.20~0.30%, Mn 0.75~0.85%, Cr 0.50~0.60%, Mo0.02-0.06%,
Ni0.77-0.87%, RE0.0010-0.0030%, surplus are Fe and inevitable impurity.
2. high-strength American Standard rare earth sucker rod round steel according to claim 1, which is characterized in that P in the impurity≤
0.025%, S≤0.025% in the impurity.
3. high-strength American Standard rare earth sucker rod round steel according to claim 1, which is characterized in that including following mass percent
Chemical component: C 0.23~0.27%, Si 0.20~0.30%, Mn 0.75~0.85%, Cr 0.50~0.60%,
Mo0.02-0.06%, Ni0.77-0.87%, RE0.0010-0.0030%.
4. high-strength American Standard rare earth sucker rod round steel according to claim 1, which is characterized in that including following mass percent
Chemical component: C 0.25%, Si 0.26%, Mn 0.81%, Cr 0.56%, Mo 0.03%, Ni 0.78%, P
0.013%, S 0.008%, RE0.0024%.
5. high-strength American Standard rare earth sucker rod round steel according to claim 1, which is characterized in that including following mass percent
Chemical component: C 0.26%, Si 0.24%, Mn 0.79%, Cr 0.54%, Mo 0.04%, Ni 0.80%, P
0.012%, S 0.010%, RE0.0018%.
6. a kind of preparation method of high-strength American Standard rare earth sucker rod round steel characterized by comprising
It smelts, C content is no less than 0.06wt% in converter terminal molten steel, and P content is no more than 0.03wt%；Tapping temperature is 1620
~1644 DEG C；
Refining；
Continuous casting, the degree of superheat are set as 25~35 DEG C, and pulling rate is 1.9~2.0m/min；
Rolling, start rolling temperature are 1000~1100 DEG C, and entry temperature at finishing is 900~950 DEG C.
7. preparation method according to claim 6, which is characterized in that in the smelting process, ferrosilicon, silicomanganese, nothing is added
One of bituminous coal and ferrochrome, ferronickel or a variety of carry out deoxidation alloyings；Tapping process carries out BOTTOM ARGON BLOWING operation to ladle.
8. preparation method according to claim 6, which is characterized in that in the refining process, ferrosilicon, medium carbon manganese is added
One or more carry out trimmings in iron, molybdenum-iron and calcination anthracite.
9. preparation method according to claim 8, which is characterized in that the refining later period feeds silicon-calcium wire, rare earth lanthanum alloy；It is soft
The time is blown greater than 10min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910454552.2A CN110079738B (en) | 2019-05-29 | 2019-05-29 | High-strength American-standard rare earth sucker rod round steel and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910454552.2A CN110079738B (en) | 2019-05-29 | 2019-05-29 | High-strength American-standard rare earth sucker rod round steel and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110079738A true CN110079738A (en) | 2019-08-02 |
| CN110079738B CN110079738B (en) | 2021-03-02 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952344A (en) * | 2006-11-21 | 2007-04-25 | 安东石油技术（集团）有限公司 | Method for making super-high-strength anti-corrosion pumping polished rod |
| CN102162067A (en) * | 2011-03-28 | 2011-08-24 | 首钢总公司 | Steel for anticorrosion sucker rods in oil field and production method thereof |
| CN104313487A (en) * | 2014-10-27 | 2015-01-28 | 黑龙江省冶金研究所 | Steel having no surface hardening and used for ultrahigh strength sucker rod and preparation method of steel |
| CN109023081A (en) * | 2018-09-05 | 2018-12-18 | 包头钢铁（集团）有限责任公司 | The production method of rare earth sucker rod round steel and rare earth sucker rod round steel |
-
2019
- 2019-05-29 CN CN201910454552.2A patent/CN110079738B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952344A (en) * | 2006-11-21 | 2007-04-25 | 安东石油技术（集团）有限公司 | Method for making super-high-strength anti-corrosion pumping polished rod |
| CN102162067A (en) * | 2011-03-28 | 2011-08-24 | 首钢总公司 | Steel for anticorrosion sucker rods in oil field and production method thereof |
| CN104313487A (en) * | 2014-10-27 | 2015-01-28 | 黑龙江省冶金研究所 | Steel having no surface hardening and used for ultrahigh strength sucker rod and preparation method of steel |
| CN109023081A (en) * | 2018-09-05 | 2018-12-18 | 包头钢铁（集团）有限责任公司 | The production method of rare earth sucker rod round steel and rare earth sucker rod round steel |
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| CN110079738B (en) | 2021-03-02 |
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