CN106854740A - The slips and the hydraulic tongs comprising the slips of a kind of micro-indentations hydraulic tongs - Google Patents
The slips and the hydraulic tongs comprising the slips of a kind of micro-indentations hydraulic tongs Download PDFInfo
- Publication number
- CN106854740A CN106854740A CN201710005966.8A CN201710005966A CN106854740A CN 106854740 A CN106854740 A CN 106854740A CN 201710005966 A CN201710005966 A CN 201710005966A CN 106854740 A CN106854740 A CN 106854740A
- Authority
- CN
- China
- Prior art keywords
- slips
- hours
- hydraulic tongs
- carburizer
- micro
- 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.)
- Granted
Links
- 238000007373 indentation Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 17
- 229910000851 Alloy steel Inorganic materials 0.000 claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 12
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 8
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 7
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 7
- 238000010791 quenching Methods 0.000 claims abstract description 6
- 230000000171 quenching effect Effects 0.000 claims abstract description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 42
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 23
- 229910052799 carbon Inorganic materials 0.000 claims description 23
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000001802 infusion Methods 0.000 claims description 12
- 210000000080 chela (arthropods) Anatomy 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 241000239290 Araneae Species 0.000 claims description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 6
- NKWPZUCBCARRDP-UHFFFAOYSA-L calcium bicarbonate Chemical compound [Ca+2].OC([O-])=O.OC([O-])=O NKWPZUCBCARRDP-UHFFFAOYSA-L 0.000 claims description 6
- 229910000020 calcium bicarbonate Inorganic materials 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 239000003610 charcoal Substances 0.000 claims 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims 1
- 238000005255 carburizing Methods 0.000 abstract description 9
- 239000003208 petroleum Substances 0.000 abstract description 2
- 210000001847 jaw Anatomy 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 229910000734 martensite Inorganic materials 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000002050 maxilla Anatomy 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
-
- 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
- C22C38/12—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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/20—Carburising
- C23C8/22—Carburising of ferrous surfaces
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/60—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes
- C23C8/62—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied
- C23C8/64—Carburising
- C23C8/66—Carburising of ferrous surfaces
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/80—After-treatment
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
Hydraulic tongs the present invention relates to a kind of slips of micro-indentations hydraulic tongs and comprising the slips.Slips is made up of steel alloy, is made up of the component of following weight portion：C 0.17 0.19%, Si 2.1 2.5%, Cr 1.4 1.7%, Mn 2.2 2.8%, W 1.3 1.5%, Ti 0.06 0.08%, Mo 0.08 0.1%, Sb 0.03 0.06%, S 0.022 0.025%, P 0.012 0.014%, remaining be iron and inevitable impurity；The handling process of slips includes carburizing and quenching, lonneal and blackening process.After above-mentioned PROCESS FOR TREATMENT, the hardness of slips is greatly improved up to 56 62HRC, and anti-wear performance.Technical field of the present invention suitable for petroleum works.
Description
Technical field
Hydraulic tongs the present invention relates to a kind of slips of micro-indentations hydraulic tongs and comprising the slips, it is adaptable to petroleum works
Technical field.
Background technology
Hydraulic power tongs is open power-spider, when being oil well repairing operation be used for, unload sucker rod, oil pipe, sleeve pipe, every
The mechanized equipment of heat pipe, drilling rod and similar tubing string screw thread.Existing Power Tong is main to be made up of main pincers and back-up tong, and back-up tong is clamped
String collar, the main tight tubing string rotation of clamp completes adapter and unloads the work of pipe.Match somebody with somebody on tooth seat on the inside of the jaw of existing Power Tong
The block teeth of dress have harder hardness and sharp cusp so that can be by block teeth incision tubing string so as to clamping is prevented in box cupling
Oil pipe falls well.Every time after operation, all the impression of certain depth can be stung out in the outer surface of tubing string.After being used for multiple times, tubing string
Surface damage occurs.Due to the corrosion of substantial amounts of carbon dioxide and hydrogen sulfide in oil well so that the column surface quilt of damage
Accelerated corrosion, so that it accelerates failure, considerably increases cost, workload and the operating risk of oilfield operation.More have very
Person, recently as increasing that nonmetallic tubing string is used on oil field so that the demand without impression Power Tong is more and more urgent.
Chinese patent application CN102061897A discloses a kind of binding clip clamping mechanism of micro-damaging screw-on machine main clip, by binding clip
Gear wheel, lower jaw grillage, maxilla grillage, jaw, block teeth, roller, roller shaft, back-moving spring, fixing axle, fixed hub and braking
Disk etc. is constituted, and the jaw of three or more than three is provided with binding clip gear wheel, roller shaft, roller, block teeth is housed on jaw and is answered
Position spring.The mechanism uses simple, the reliable many jaw clamp systems of inner camber and climbing roller, and block teeth are by high-abrasive material system
Into, and the contact area with tubing string is increased, play a part of to clamp tubing string and do not damage tubing string, its economic benefits.China
Patent application CN102061898A discloses a kind of micro-damaging screw-on machine back-up tong headclamping mechanism, it is disclosed that similar tooth
Block.
The content of the invention
The invention provides a kind of slips of micro-indentations hydraulic tongs, the slips piece energy being made up of preparation method of the invention
It is enough while meet clamping and require, small damage is only caused to tubing string, therefore greatly improve the economy of oilfield operation
Property, reliability and security.
The slips of micro-indentations hydraulic tongs of the invention, is made up of steel alloy, steel alloy by following weight portion component
Composition：C 0.17-0.19%, Si 2.1-2.5%, Cr 1.4-1.7%, Mn 2.2-2.8%, W 1.3-1.5%, Ti
0.06-0.08%, Mo 0.08-0.1%, Sb 0.03-0.06%, S 0.022-0.025%, P 0.012-0.014%, remaining
It is iron and inevitable impurity；
Its handling process is as follows：
(1) the good workpiece surface of punching press cleaned, polished and ungrease treatment；
(2) workpiece heat that will have been pre-processed carries out normalized treatment 3 hours to 940-945 DEG C, then passes to air 12
615-620 DEG C is cooled in minute, and is allowed to keep temperature air cooling after 1.5 hours；
(3) treatment 2 hours is dried to carburizer at 230 DEG C；
(4) carburizer is put into the bottom of carburizer, is put the workpiece in carburizer, the top of workpiece is also placed in carburizing
Agent, rises to temperature in carburizer 660-662 DEG C and is incubated 5 hours, just ooze；
(5) 810-815 DEG C is continuously heating to, is kept for 2 hours, while persistently instilling isopropanol；The infusion volume of isopropanol is
10-12 ml/mins, carbon potential is 0.8%Cp；
(6) 925-930 DEG C is continuously heating to, is kept for 60 hours, while persistently instilling isopropanol；During this period, preceding 48 is small
Shi Weiqiang oozes the stage, and the infusion volume of isopropanol is 20-22 ml/mins, and carbon potential is 1.2%Cp；It is within 12 hours afterwards diffusion phase,
The infusion volume of isopropanol is 8-10 ml/mins, and carbon potential is 0.8%Cp；
(7) 840 DEG C are cooled to stove, are passed through cold wind, temperature is rapidly decreased to 590-592 DEG C, is incubated 3 hours, then again
810-815 DEG C is warming up to, 2 hours is incubated, while persistently instilling isopropanol；The infusion volume of isopropanol is 10-12 ml/mins,
Carbon potential is 1.0%Cp；
(8) by workpiece take out be put into oil quenching, when temperature is down to 130-135 DEG C, lonneal to 190-200 DEG C,
Air cooling；
(9) workpiece surface carries out blackening process, and the hardness of obtained slips is 56-62HRC.
Preferably, carburizer is pressed by silica, carbon black, calcium bicarbonate, sodium acid carbonate, acetic acid formicester, butenoic acid formicester
It is 1 according to mass ratio：0.3-0.34：0.12-0.15：0.1-0.13：0.2-0.23：0.06-0.08 is well mixed to be made.More preferably
Ground, carburizer is 1 according to mass ratio by silica, carbon black, calcium bicarbonate, sodium acid carbonate, acetic acid formicester, butenoic acid formicester：
0.33：0.15：0.12：0.21：0.06 well mixed is made.
Preferably, steel alloy is made up of the component of following weight portion：C 0.17%, Si 2.2%, Cr 1.6%, Mn
2.5%th, W 1.5%, Ti 0.08%, Mo 0.1%, Sb 0.06%, S 0.024%, P 0.013%, remaining be iron and can not
The impurity for avoiding.
Another aspect of the present invention is related to a kind of micro-indentations hydraulic tongs, including back-up tong and main pincers, and its middle part is equipped with slips
Seat, compartment of terrain is circumferentially fixed on slip spider slips, and slips is slips as described above.
Preferably, slips is in cambered surface sheet, and inner side is provided with friction jut；It is arranged to rough inner-surface on the inside of slips；
The number of slips is at least two.
It is used in hydraulic tongs using slips obtained in preparation method of the invention so that cause on surface during operation to tubing string
Damage it is extremely small, the service life and operational security of oil pipe can be greatly enhanced.
Brief description of the drawings
Fig. 1 is the schematic perspective view of micro-indentations hydraulic tongs of the invention.
Fig. 2 is the top view of micro-indentations hydraulic tongs of the invention.
Fig. 3 is a kind of structural representation of implementation method of slips of the invention.
Fig. 4 is a kind of top view of implementation method of slips of the invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing to the present invention
Embodiment be described in detail.It should be noted that in the case where not conflicting, in the embodiment and embodiment in the application
Feature can mutually be combined.
As illustrated in fig. 1 and 2, micro-indentations hydraulic tongs of the invention includes the middle part of back-up tong 1 and main pincers 2, back-up tong 1 and main pincers 2
Slip spider is equipped with, the compartment of terrain of slips 3 is circumferentially fixed on slip spider.During operation, back-up tong 1 holds string collar tightly, and main pincers 2 are held tightly
Tubing string waiting simultaneously rotates, so as to upper lower tubular column be spun.The size of slips can be selected according to the actual size of tubing string, its
The number set around slip spider is at least two, for example, can be 2,3 or 4.It should be noted that of the invention
"up" and "down" only represents relative orientation, should not be understood as a kind of restriction.According to actual needs, it is also understood that into a left side
Right, front and rear relative bearing.
As shown in Figures 3 and 4, which show a kind of implementation method micro-indentations slips structural representation.As illustrated,
Slips is in cambered surface sheet, and its inner side is provided with friction jut, with the holding frictional force between increase and tubing string.People in the art
Member's understanding, as needed, it is also possible to friction jut is not set in the inner side of slips, but other will be arranged on the inside of slips
The rough inner-surface of form is increasing friction.
Micro-indentations slips of the invention is made of steel alloy, and the steel alloy is made up of the component of following weight portion：C
0.17-0.19%, Si 2.1-2.5%, Cr 1.4-1.7%, Mn 2.2-2.8%, W 1.3-1.5%, Ti 0.06-
0.08%th, Mo 0.08-0.1%, Sb 0.03-0.06%, S 0.022-0.025%, P 0.012-0.014%, remaining be iron
With inevitable impurity.Preferably, steel alloy of the invention is made up of the component of following weight portion：C 0.17%, Si
2.2%th, Cr 1.6%, Mn 2.5%, W 1.5%, Ti 0.08%, Mo 0.1%, Sb 0.06%, S 0.024%, P
0.013%th, remaining is iron and inevitable impurity.
It is of the invention as follows for manufacturing the handling process of the steel alloy of slips：
(1) the good workpiece surface of punching press cleaned, polished and ungrease treatment.
(2) workpiece heat that will have been pre-processed carries out normalized treatment 3 hours to 940-945 DEG C, then passes to air 12
615-620 DEG C is cooled in minute, and is allowed to keep temperature air cooling after 1.5 hours.
(3) treatment 2 hours is dried to carburizer at 230 DEG C.
(4) carburizer is put into the bottom of carburizer, is put the workpiece in carburizer, the top of workpiece is also placed in carburizing
Agent, rises to temperature in carburizer 660-662 DEG C and is incubated 5 hours, just ooze.Carburizing equipment must have good furnace temperature uniform
Property, sealing and atmosphere evenness, otherwise can cause the inequality of amount of distortion with furnaceman's part due to the uneven of furnace temperature or atmosphere
It is even.
Preferably, carburizer is pressed by silica, carbon black, calcium bicarbonate, sodium acid carbonate, acetic acid formicester, butenoic acid formicester
It is 1 according to mass ratio：0.3-0.34：0.12-0.15：0.1-0.13：0.2-0.23：0.06-0.08 is well mixed to be made.More preferably
Ground, carburizer is 1 according to mass ratio by silica, carbon black, calcium bicarbonate, sodium acid carbonate, acetic acid formicester, butenoic acid formicester：
0.33：0.15：0.12：0.21：0.06 well mixed is made.The alloy composition that above-mentioned carburizer is directed to slips of the present invention is special
Door configuration, using carburizer of the invention, can be greatly enhanced carburizing efficiency.
(5) 810-815 DEG C is continuously heating to, is kept for 2 hours, while persistently instilling isopropanol；The infusion volume of isopropanol is
10-12 ml/mins, carbon potential is 0.8%Cp.The isopropanol being passed through is decomposed at high temperature, produces active atoms of carbon, and be heated
The workpiece surface of state absorbs, and backward steel alloy diffusion inside.Generally, heating-up temperature is higher, and carburizing speed is just faster, and expands
The thickness for dissipating layer is also deeper.
As the flow of water, potential, potential difference determines the trend of material flowing to carbon potential.Carbon potential difference determines the side of carbon spread
To.When free diffusing, carbon is always from carbon potential place high to the low place diffusion of carbon potential.Carbon potential in heat treatment refers in stove
When carbon-containing atmosphere reaches dynamic equilibrium and the austenite of surface of steel workpiece between at a certain temperature, what the surface of steel reached contains
Carbon amounts.It is general to be measured using mild steel thin slice.Mild steel paillon foil by thickness less than 0.1mm is placed in the carburizing medium of a certain temperature
In, through carburizing is carried out, determine the phosphorus content of paillon foil, as carburizing medium carbon potential at such a temperature.
(6) 925-930 DEG C is continuously heating to, is kept for 60 hours, while persistently instilling isopropanol.During this period, preceding 48 is small
Shi Weiqiang oozes the stage, and the infusion volume of isopropanol is 20-22 ml/mins, and carbon potential is 1.2%Cp；It is within 12 hours afterwards diffusion phase,
The infusion volume of isopropanol is 8-10 ml/mins, and carbon potential is 0.8%Cp.
(7) 840 DEG C are cooled to stove, are passed through cold wind, temperature is rapidly decreased to 590-592 DEG C, is incubated 3 hours, then again
810-815 DEG C is warming up to, 2 hours is incubated, while persistently instilling isopropanol；The infusion volume of isopropanol is 10-12 ml/mins,
Carbon potential is 1.0%Cp.
(8) by workpiece take out be put into oil quenching, when temperature is down to 130-135 DEG C, lonneal to 190-200 DEG C,
Air cooling.The distortion that parts accumulate in the sequence of operations of whole machining process is released in quenching process to dive
Energy；Lonneal after quenching, can also make part retained austenite be changed into martensite, and martensite is fully changed into tempering
Martensite, so as to ensure tissue and dimensional stability.
(9) workpiece surface carries out blackening process, and the principle of blackening process is metal surface is produced layer oxide film, with every
Exhausted air, reaches antirust purpose.
After above-mentioned PROCESS FOR TREATMENT, the hardness of slips has obtained greatly carrying up to 56-62HRC, and anti-wear performance
It is high.Steel alloy of the invention has the advantages that reliable in quality, intensity and anti-wear performance are good, is very suitable for the building ring of slips
Border.
Meanwhile, employ slips obtained in above-mentioned preparation technology so that hydraulic tongs of the invention hold tightly oil well pipe when,
Small impression only can be produced to its surface, drastically increase the utilization ratio and security performance of tubing string.
Although disclosed herein implementation method as above, described content is only to facilitate understanding the present invention and adopting
Implementation method, is not limited to the present invention.Any those skilled in the art to which this invention pertains, are not departing from this
On the premise of the disclosed spirit and scope of invention, any modification and change can be made in the formal and details implemented,
But scope of patent protection of the invention, must be still defined by the scope of which is defined in the appended claims.
Claims (8)
1. a kind of slips of micro-indentations hydraulic tongs, is made up of steel alloy, it is characterised in that steel alloy by following weight portion component
Composition：C 0.17-0.19%, Si 2.1-2.5%, Cr 1.4-1.7%, Mn 2.2-2.8%, W 1.3-1.5%, Ti
0.06-0.08%, Mo 0.08-0.1%, Sb 0.03-0.06%, S 0.022-0.025%, P 0.012-0.014%, remaining
It is iron and inevitable impurity；
The handling process of the steel alloy is as follows：
(1) the good workpiece surface of punching press cleaned, polished and ungrease treatment；
(2) workpiece heat that will have been pre-processed carries out normalized treatment 3 hours to 940-945 DEG C, then passes to air at 12 minutes
615-620 DEG C is inside cooled to, and is allowed to keep temperature air cooling after 1.5 hours；
(3) treatment 2 hours is dried to carburizer at 230 DEG C；
(4) carburizer is put into the bottom of carburizer, is put the workpiece in carburizer, the top of workpiece is also placed in carburizer, will
Temperature rises to 660-662 DEG C and is incubated 5 hours in carburizer, just ooze；
(5) 810-815 DEG C is continuously heating to, is kept for 2 hours, while persistently instilling isopropanol；The infusion volume of isopropanol is 10-12
Ml/min, carbon potential is 0.8%Cp；
(6) 925-930 DEG C is continuously heating to, is kept for 60 hours, while persistently instilling isopropanol；During this period, it is within first 48 hours
Ooze the stage by force, the infusion volume of isopropanol is 20-22 ml/mins, and carbon potential is 1.2%Cp；It is within 12 hours afterwards diffusion phase, isopropyl
The infusion volume of alcohol is 8-10 ml/mins, and carbon potential is 0.8%Cp；
(7) 840 DEG C are cooled to stove, are passed through cold wind, temperature is rapidly decreased to 590-592 DEG C, is incubated 3 hours, then heats up again
To 810-815 DEG C, 2 hours are incubated, while persistently instilling isopropanol；The infusion volume of isopropanol is 10-12 ml/mins, carbon potential
It is 1.0%Cp；
(8) workpiece is taken out and is put into oil quenching, when temperature is down to 130-135 DEG C, lonneal to 190-200 DEG C, air cooling；
(9) workpiece surface carries out blackening process, and the hardness of obtained slips is 56-62HRC.
2. the slips of micro-indentations hydraulic tongs according to claim 1, it is characterised in that carburizer by silica, carbon black,
Calcium bicarbonate, sodium acid carbonate, acetic acid formicester, butenoic acid formicester are 1 according to mass ratio：0.3-0.34：0.12-0.15：0.1-
0.13：0.2-0.23：0.06-0.08 is well mixed to be made.
3. the slips of micro-indentations hydraulic tongs according to claim 1 and 2, it is characterised in that carburizer is by silica, charcoal
Black, calcium bicarbonate, sodium acid carbonate, acetic acid formicester, butenoic acid formicester are 1 according to mass ratio：0.33：0.15：0.12：0.21：
0.06 well mixed is made.
4. the slips of the micro-indentations hydraulic tongs according to claim 1 or 2 or 3, it is characterised in that steel alloy is by following weight
The component of part is made：C 0.17%, Si 2.2%, Cr 1.6%, Mn 2.5%, W 1.5%, Ti 0.08%, Mo 0.1%,
Sb 0.06%, S 0.024%, P 0.013%, remaining be iron and inevitable impurity.
5. a kind of micro-indentations hydraulic tongs, the hydraulic tongs includes back-up tong (1) and main pincers (2), the back-up tong (1) and main pincers (2)
Middle part is equipped with slip spider, and compartment of terrain is circumferentially fixed on the slip spider slips, it is characterised in that the slips is according to power
Profit requires the slips described in any one of 1-4.
6. it is according to claim 5 without impression hydraulic tongs, it is characterised in that the slips is in cambered surface sheet, and inner side is provided with
Friction jut.
7. it is according to claim 5 without impression hydraulic tongs, it is characterised in that to be arranged to coarse interior table on the inside of the slips
Face.
8. it is according to claim 5 without impression hydraulic tongs, it is characterised in that the number of the slips is at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710005966.8A CN106854740B (en) | 2017-01-05 | 2017-01-05 | A kind of slips of micro-indentations hydraulic tongs and the hydraulic tongs comprising the slips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710005966.8A CN106854740B (en) | 2017-01-05 | 2017-01-05 | A kind of slips of micro-indentations hydraulic tongs and the hydraulic tongs comprising the slips |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106854740A true CN106854740A (en) | 2017-06-16 |
| CN106854740B CN106854740B (en) | 2018-03-09 |
Family
ID=59126461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710005966.8A Active CN106854740B (en) | 2017-01-05 | 2017-01-05 | A kind of slips of micro-indentations hydraulic tongs and the hydraulic tongs comprising the slips |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106854740B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008056991A (en) * | 2006-08-31 | 2008-03-13 | Nippon Steel Corp | High-strength thin steel sheet having superior delayed-fracture resistance after having been formed, and manufacturing method therefor |
| JP2015098620A (en) * | 2013-11-18 | 2015-05-28 | 新日鐵住金株式会社 | Automobile steel plate having excellent chemical convertibility and corrosion resistance |
| CN105177492A (en) * | 2015-10-26 | 2015-12-23 | 江苏保捷锻压有限公司 | Carburizing and quenching heat treatment process of driven reverse gear used for transmissions |
| CN105369156A (en) * | 2015-11-18 | 2016-03-02 | 宁波瑞尔汽车零部件有限公司 | Manufacturing method of screw |
| CN106048191A (en) * | 2016-08-23 | 2016-10-26 | 常州新区河海热处理工程有限公司 | Heat treatment technology for reducing deformation of spiral bevel gear for industrial robot |
| CN106086618A (en) * | 2016-06-03 | 2016-11-09 | 江苏保捷锻压有限公司 | A kind of automobile differential drives gear liquid technology of Liquid Die Forging |
| CN106119507A (en) * | 2016-08-23 | 2016-11-16 | 常州新区河海热处理工程有限公司 | A kind of Technology for Heating Processing reducing the deformation of gear shaft keyway |
-
2017
- 2017-01-05 CN CN201710005966.8A patent/CN106854740B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008056991A (en) * | 2006-08-31 | 2008-03-13 | Nippon Steel Corp | High-strength thin steel sheet having superior delayed-fracture resistance after having been formed, and manufacturing method therefor |
| JP2015098620A (en) * | 2013-11-18 | 2015-05-28 | 新日鐵住金株式会社 | Automobile steel plate having excellent chemical convertibility and corrosion resistance |
| CN105177492A (en) * | 2015-10-26 | 2015-12-23 | 江苏保捷锻压有限公司 | Carburizing and quenching heat treatment process of driven reverse gear used for transmissions |
| CN105369156A (en) * | 2015-11-18 | 2016-03-02 | 宁波瑞尔汽车零部件有限公司 | Manufacturing method of screw |
| CN106086618A (en) * | 2016-06-03 | 2016-11-09 | 江苏保捷锻压有限公司 | A kind of automobile differential drives gear liquid technology of Liquid Die Forging |
| CN106048191A (en) * | 2016-08-23 | 2016-10-26 | 常州新区河海热处理工程有限公司 | Heat treatment technology for reducing deformation of spiral bevel gear for industrial robot |
| CN106119507A (en) * | 2016-08-23 | 2016-11-16 | 常州新区河海热处理工程有限公司 | A kind of Technology for Heating Processing reducing the deformation of gear shaft keyway |
Non-Patent Citations (2)
| Title |
|---|
| 张瑞，等: "热处理工艺对弹性防退卡瓦性能的影响", 《石油机械》 * |
| 杜晓瑞: "《钻井工具手册》", 31 January 2013 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106854740B (en) | 2018-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104711401B (en) | Large heavy-load gear carburization quenching method | |
| CN106522862B (en) | A kind of hydraulic tongs with torque control instrument | |
| CN102676983B (en) | Carburization processing method | |
| CN110977144B (en) | Method for joining two materials by diffusion welding | |
| CN102888610A (en) | Thermal treatment method for internal spline gear with small modulus | |
| CN102182874A (en) | Bimetal mechanical composite wear-resistant steel tube and production method thereof | |
| EP1028098A3 (en) | SiC-C/C composite material, uses thereof and method for producing the same | |
| CN103882372B (en) | A kind of low medium carbon steel surface reinforcing method | |
| CN105369016B (en) | A kind of method for improving high-strength alloy steel drive link surface strength | |
| CN106854740B (en) | A kind of slips of micro-indentations hydraulic tongs and the hydraulic tongs comprising the slips | |
| CN105568212A (en) | Method for improving salt bath nitridation efficiency by virtue of salt bath preoxidation | |
| CN107201496A (en) | A kind of method for preparing chromium based ceramic metal hardened layer in stainless steel surfaces | |
| JP2003278768A (en) | Rolling bearing for belt type continuously variable transmission | |
| CN104481410A (en) | High-hardness wear-resistant rock drill manufacturing method | |
| CN203270017U (en) | Quick nitridation and carburization device of special pipefitting for oil tube and casing for petroleum | |
| CN204127124U (en) | Gear tapered roller bearing | |
| CN206563446U (en) | A kind of lithium bromide cold and hot water machine group high-temperature generator | |
| CN107937862A (en) | A kind of carburization process for chain production | |
| CN108193043A (en) | A kind of low module Thermal treatment method for internal spline gear | |
| CN104372160B (en) | Gear taper roll bearing and the heat treatment method of bearing band tooth outer ring | |
| CN210341033U (en) | Novel carburizing tank structure | |
| CN207064465U (en) | A kind of automobile engine refractory seals bearing | |
| CN205324848U (en) | Deviation rectifying device | |
| CN107746920A (en) | A kind of heat treatment quenching process of middle carbon clean steel precision component | |
| CN105296913A (en) | Double-cavity carburizing pot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |