CN106086654A - Drilling machine drilling rod seamless steel pipe and manufacture method thereof - Google Patents
Drilling machine drilling rod seamless steel pipe and manufacture method thereof Download PDFInfo
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- CN106086654A CN106086654A CN201610669000.XA CN201610669000A CN106086654A CN 106086654 A CN106086654 A CN 106086654A CN 201610669000 A CN201610669000 A CN 201610669000A CN 106086654 A CN106086654 A CN 106086654A
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- steel pipe
- seamless steel
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- 238000005553 drilling Methods 0.000 title claims abstract description 63
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 51
- 239000010959 steel Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 238000009749 continuous casting Methods 0.000 claims description 10
- 239000002826 coolant Substances 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000009785 tube rolling Methods 0.000 description 1
Classifications
-
- 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
- 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
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- 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
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous 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
- C22C38/02—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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- 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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- 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
-
- 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
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention discloses a kind of drilling machine drilling rod seamless steel pipe and manufacture method thereof, the chemical composition of wherein said steel pipe calculates by weight and includes: C:0.07～0.10 part, Si:0.15～0.38 part, Mn:1.20～1.40 parts, Cr:0.10～0.30 part, Mo:0.15～0.25 part, V:0.03～0.07 part；Remaining is Fe, residual elements and impurity.The drilling rod seamless steel pipe intensity that the present invention produces is high, good toughness, and good welding performance can produce high-quality drilling machine drilling rod；The composition design of seamless steel pipe of the present invention, economical rationality selection component mates, and carbon equivalent is low, good welding performance.The seamless steel pipe manufacture of rotary drilling rig drilling pipe, heat treatment method, solve the problem that rotary drilling rig drilling pipe seamless steel pipe intensity is the highest.
Description
Technical field
The present invention relates to seamless steel pipe, be specifically related to a kind of drilling machine drilling rod seamless steel pipe and manufacture method thereof.
Background technology
Rotary drilling rig is the construction machinery of pore-forming operation in a kind of applicable building foundation engineering, is primarily adapted for sand, viscosity
The soil layer constructions such as soil, slity soil, are used widely in the multiple foundation basic constructions such as bored concrete pile, diaphragm wall, strengthening of foundation.
Rotary drilling rig is with its characteristic such as high efficiency, low stain, and oneself becomes domestic railway and bridge on highway pile foundation construction a few days ago
Main construction equipment, and along with the increasing of national basis construction investment, the demand of rotary drilling rig is increased sharply.
Drilling machine drilling rod is the critical component of rotary drilling rig, and drilling machine drilling rod is combined by several sections of drilling rods, often saves
Drilling rod is made up of seamless steel pipe and the inside and outside driving key that is welded thereon.
Summary of the invention
Instant invention overcomes the deficiencies in the prior art, it is provided that a kind of drilling machine drilling rod seamless steel pipe and manufacturer thereof
Method.The drilling rod seamless steel pipe intensity produced is high, good toughness, and good welding performance can produce high-quality churning driven machine drill
Bar.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
A kind of drilling machine drilling rod seamless steel pipe, the chemical composition of described steel pipe calculates by weight and includes: C:
0.07～0.10 part, Si:0.15～0.38 part, Mn:1.20～1.40 parts, Cr:0.10～0.30 part, Mo:0.15～0.25 part,
V:0.03～0.07 part；Remaining is Fe, residual elements and impurity.
During further technical scheme is described residual elements: Cu≤0.20 part, Ni≤0.30 part, Nb≤0.01 part,
Ti≤0.025 part, B≤0.0005 part.
P≤0.015 part, S≤0.002 part, N≤0.010 part during further technical scheme is described impurity.
Further technical scheme is carbon equivalent Pcm≤0.21% of described steel pipe, wherein, Pcm=C+Si/30+Mn/
20+Cu/20+Cr/20+Ni/60+Mo/15+V/10+5B。
Further technical scheme is described steel pipe yield strength: >=550Mpa, and tensile strength: 620～750Mpa is prolonged
Stretch rate >=18%；The U-shaped impact flexibility of Charpy: room temperature longitudinally full-scale Charpy-V impact power >=100J.
Further technical scheme is to provide a kind of drilling machine drilling rod method of manufacturing seamless steel pipe, described method
Comprise the following steps:
Step one, base
The molten steel that the chemical composition of the steel pipe as described in claim 1 to 5 any one claim is made into carries out LF refine
Stove refine and VD application of vacuum, controlling tapping temperature is 1590～1605 DEG C；Conticaster is poured into a mould, and controls tundish temperature and is:
1530～1555 DEG C；Continuous casting billet is cleared up；
Step 2, blank pipe roll
By continuous casting billet through annular furnace heating, perforation and finish to gauge tubulation；Control continuous casting billet to go out annular furnace temperature and be: 1220～
1250 DEG C, controlling finishing temperature is: 850～950 DEG C；
Step 3, pushing formula heat expand technique
By seamless steel pipe blank pipe by sensing heating, expanding with conic mandrel bar for mould；
Step 4, heat treatment
Using modifier treatment, controlling hardening heat is 950～970 DEG C, and temperature is 650～690 DEG C.
During further technical scheme is described step 3 heat expand temperature be 870～900 DEG C, fltting speed be 150～
200 mm/min.
During further technical scheme is described step 4, coolant is water.
Compared with prior art, one of beneficial effect of the embodiment of the present invention is: the drilling rod that the present invention produces is with seamless
Steel strength is high, good toughness, and good welding performance can produce high-quality drilling machine drilling rod.
The composition design of seamless steel pipe of the present invention, economical rationality selection component mates, and carbon equivalent is low, good welding performance.
The seamless steel pipe manufacture of rotary drilling rig drilling pipe, heat treatment method, solve rotary drilling rig drilling pipe seamless steel pipe intensity
The highest problem.
Detailed description of the invention
All features disclosed in this specification, or disclosed all methods or during step, except mutually exclusive
Feature and/or step beyond, all can combine by any way.
Any feature disclosed in this specification (including any accessory claim, summary), unless specifically stated otherwise,
By other equivalences or there is the alternative features of similar purpose replaced.I.e., unless specifically stated otherwise, each feature is a series of
An example in equivalence or similar characteristics.
Below in conjunction with embodiment, the detailed description of the invention of the present invention is described in detail.
Embodiment 1
According to one embodiment of present invention, the present embodiment discloses and a kind of produces that mechanical strength is high, welding performance is excellent
Drilling machine drilling rod seamless pipe steel pipe.Concrete, in the present embodiment, the chemical ingredients by weight percent of this seamless steel pipe is: C
0.07～0.10%, Si 0.15～0.38%, Mn 1.20～1.40%, Cr 0.10～0.30%, Mo 0.15～0.25%,
V 0.03～0.07% remaining be Fe, residual elements and impurity.
Preferably, wherein in residual elements: Cu≤0.20%, Ni≤0.30%, Nb≤0.01%, Ti≤0.025%, B
≤ 0.0005%.
Wherein, P≤0.015%, S≤0.002%, N≤0.010% in impurity.
Carbon equivalent Pcm≤0.21% of seamless steel pipe described in the present embodiment, Pcm=C+Si/30+Mn/20+Cu/20+
Cr/20+Ni/60+Mo/15+V/10+5B。
The present embodiment low-carbon-equivalent high-strength drilling machine drilling rod seamless steel pipe performance reaches following index:
Yield strength: >=550Mpa, tensile strength: 620～750Mpa, elongation percentage >=18%；The U-shaped impact flexibility of Charpy:
Room temperature longitudinally full-scale Charpy-V impact power >=100J.
Embodiment 2
According to another embodiment of the invention, the open a kind of drilling machine drilling rod of the present embodiment uses seamless steel pipe manufacturer
Method, as a example by Φ 470 × 10mm seamless steel pipe, this manufacture method mainly comprises the steps that
Step one, base
By the steel grade chemical ingredients by weight percent of above-described embodiment be: C 0.07～0.10%, Si 0.15～
0.38%, Mn 1.20～1.40%, Cr 0.10～0.30%, Mo 0.15～0.25%, V 0.03～0.07%, Cu≤
0.20%, Ni≤0.30%, Nb≤0.01%, Ti≤0.025%, B≤0.0005%.Remaining is Fe, residual elements and impurity
The raw material of preparation carries out electric furnace smelting and becomes molten steel, by molten steel after LF refining furnace refine, by VD vacuum outgas and carry out calcium
Processing, upper continuous casting platform is poured into a mould, continuous casting garden base diameter of phi 350mm.Actual control composition such as table 1:
Table 1 chemical composition
Step 2, tube rolling
Qualified scale Φ 350mm continuous casting billet heats at ring-type furnace, is entering reheating furnace heating, finally after perforation
Rolling, sizing, finishing and packaging, it is hot that continuous casting billet goes out annular furnace steel: 1220～1250 DEG C, finishing temperature: 850～950 DEG C.
Step 3, pushing formula heat expand technique
By seamless steel pipe blank pipe by sensing heating, expanding with conic mandrel bar for mould, heat expands temperature 870～900 DEG C,
Fltting speed 150～200 mm/min.
Step 4, heat treatment
By modifier treatment, hardening heat is 950～970 DEG C, and water selected by coolant；Temperature 650～690 DEG C, cold
But mode is cooling air mode.
The tube product mechanical property produced such as table 2:
Table 2 Φ 470 × 10mm product mechanical property
The drilling rod seamless steel pipe intensity produced by the present embodiment is high, good toughness, and good welding performance can produce height
The drilling machine drilling rod of quality.
" embodiment ", " another embodiment ", " embodiment " spoken of in this manual etc., refer to combine
Specific features, structure or the feature that this embodiment describes is included at least one embodiment that the application generality describes.
The most multiple local appearance statement of the same race is not necessarily to refer to same embodiment.Furthermore, it is understood that combine arbitrary
When individual embodiment describes a specific features, structure or feature, to be advocated is, and to combine other embodiments this to realize
Feature, structure or feature also fall within the scope of the present invention.
Although reference be made herein to invention has been described for the multiple explanatory embodiment invented, however, it is to be understood that this
Skilled person can be designed that a lot of other amendments and embodiment, and these amendments and embodiment will fall in the application
Within disclosed spirit and spirit.More specifically, in the range of disclosure, claim, can be to theme
The building block of composite configuration and/or layout carry out multiple modification and improvement.Except the change that building block and/or layout are carried out
Outside type and improvement, to those skilled in the art, other purposes also will be apparent from.
Claims (8)
1. a drilling machine drilling rod seamless steel pipe, it is characterised in that: the chemical composition of described steel pipe is counted by weight
Including: C:0.07～0.10 part, Si:0.15～0.38 part, Mn:1.20～1.40 parts, Cr:0.10～0.30 part, Mo:0.15
～0.25 part, V:0.03～0.07 part；Remaining is Fe, residual elements and impurity.
Drilling machine drilling rod seamless steel pipe the most according to claim 1, it is characterised in that in described residual elements: Cu
≤ 0.20 part, Ni≤0.30 part, Nb≤0.01 part, Ti≤0.025 part, B≤0.0005 part.
Drilling machine drilling rod seamless steel pipe the most according to claim 1, it is characterised in that P in described impurity≤
0.015 part, S≤0.002 part, N≤0.010 part.
Drilling machine drilling rod seamless steel pipe the most according to claim 1, it is characterised in that the carbon equivalent of described steel pipe
Pcm≤0.21%, wherein, Pcm=C+Si/30+Mn/20+Cu/20+Cr/20+Ni/60+Mo/15+V/10+5B.
Drilling machine drilling rod seamless steel pipe the most according to claim 1, it is characterised in that the yield strength of described steel pipe:
>=550Mpa, tensile strength: 620～750Mpa, elongation percentage >=18%；The U-shaped impact flexibility of Charpy: room temperature longitudinally full-scale Charpy
Ballistic work >=100J.
6. a drilling machine drilling rod method of manufacturing seamless steel pipe, it is characterised in that: described method comprises the following steps:
Step one, base
The molten steel that the chemical composition of the steel pipe as described in claim 1 to 5 any one claim is made into carries out LF refining furnace essence
Refining and VD application of vacuum, controlling tapping temperature is 1590～1605 DEG C；Conticaster pour into a mould, control tundish temperature be: 1530～
1555℃；Continuous casting billet is cleared up；
Step 2, blank pipe roll
By continuous casting billet through annular furnace heating, perforation and finish to gauge tubulation；Control continuous casting billet goes out annular furnace temperature and is: 1220～1250
DEG C, controlling finishing temperature is: 850～950 DEG C；
Step 3, pushing formula heat expand technique
By seamless steel pipe blank pipe by sensing heating, expanding with conic mandrel bar for mould；
Step 4, heat treatment
Using modifier treatment, controlling hardening heat is 950～970 DEG C, and temperature is 650～690 DEG C.
Drilling machine drilling rod method of manufacturing seamless steel pipe the most according to claim 6, it is characterised in that described step
In three, heat expands temperature is 870～900 DEG C, and fltting speed is 150～200 mm/min.
Drilling machine drilling rod method of manufacturing seamless steel pipe the most according to claim 6, it is characterised in that described step
In four, coolant is water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610669000.XA CN106086654A (en) | 2016-08-15 | 2016-08-15 | Drilling machine drilling rod seamless steel pipe and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610669000.XA CN106086654A (en) | 2016-08-15 | 2016-08-15 | Drilling machine drilling rod seamless steel pipe and manufacture method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106086654A true CN106086654A (en) | 2016-11-09 |
Family
ID=58069206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610669000.XA Pending CN106086654A (en) | 2016-08-15 | 2016-08-15 | Drilling machine drilling rod seamless steel pipe and manufacture method thereof |
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| Country | Link |
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| CN (1) | CN106086654A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660371A (en) * | 2018-03-27 | 2018-10-16 | 衡阳华菱连轧管有限公司 | Steel pipe, its raw material, its production method and rotary drilling rig drilling rod |
| CN110157857A (en) * | 2019-06-03 | 2019-08-23 | 无锡市前洲无缝钢管有限公司 | A kind of manufacturing method of the high pressure resistant seamless steel pipe of petroleum |
| CN115747635A (en) * | 2022-10-11 | 2023-03-07 | 天津钢管制造有限公司 | Economical high-strength quenched and tempered thin-wall seamless steel tube for inner layer rod of rotary drilling rod |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660371A (en) * | 2018-03-27 | 2018-10-16 | 衡阳华菱连轧管有限公司 | Steel pipe, its raw material, its production method and rotary drilling rig drilling rod |
| CN110157857A (en) * | 2019-06-03 | 2019-08-23 | 无锡市前洲无缝钢管有限公司 | A kind of manufacturing method of the high pressure resistant seamless steel pipe of petroleum |
| CN115747635A (en) * | 2022-10-11 | 2023-03-07 | 天津钢管制造有限公司 | Economical high-strength quenched and tempered thin-wall seamless steel tube for inner layer rod of rotary drilling rod |
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Application publication date: 20161109 |