CN104786001A - Waste thermal insulation oil pipe performance recovery process - Google Patents
Waste thermal insulation oil pipe performance recovery process Download PDFInfo
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- CN104786001A CN104786001A CN201510172171.7A CN201510172171A CN104786001A CN 104786001 A CN104786001 A CN 104786001A CN 201510172171 A CN201510172171 A CN 201510172171A CN 104786001 A CN104786001 A CN 104786001A
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- insulated tubing
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- box cupling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
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- 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
- C23C12/00—Solid state diffusion of at least one non-metal element other than silicon and at least one metal element or silicon into metallic material surfaces
- C23C12/02—Diffusion in one step
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
The invention discloses a waste thermal insulation oil pipe performance recovery process. The process includes the first step of manufacturing a connector, the second step of manufacturing a connecting hoop, the third step of unloading the connecting hoop, the fourth step of flushing the inner surface and the outer surface, the fifth step of conducting heating, the sixth step of conducting cutting, the seventh step of machining the end faces, the eighth step of conducting welding, the ninth step of cutting away one end of a thermal insulation oil pipe, the tenth step of machining the end face through a lathe, the eleventh step of welding the other end of the thermal insulation oil pipe, the twelfth step of conducting quenched-tempered treatment on the welding positioning, the thirteenth step of cutting away an inner flange and an outer flange through turning, the fourteenth step of detecting the strength of the connector, the fifteenth step of drilling holes, the sixteenth step of conducting drying through adhesive blasting, the seventeenth step of conducting coating, the eighteenth step of conducting buckling, the nineteenth step of conducting shot blasting, the twentieth step of conducting coating, the twenty-first step of conducting packaging and conveying the product to a finished product warehouse. The process has the advantages that the standard and API standard requirement can be met, energy conservation and consumption reduction are achieved, and waste is turned into wealth.
Description
Technical field
The present invention relates to a kind of insulated tubing performance recovery technique, particularly one waste and old insulated tubing performance recovery technique.
Background technology
At present, can produce a large amount of waste and old insulated tubings in field produces, the process of current waste and old insulated tubing is adopted in two ways usually: one is by steel scrap process, again melts down smelting; The second carries out simple repair process.
Adopt first kind of way can cause the significant wastage of resource, and consume mass energy, contaminated environment; The second processing mode adopts heating or with cleaning agent cleaning, selects the processing end thread again that state is good, namely complete repair after rust cleaning.The waste oil well pipe repaired in this way is not long for service life, the hot spot of inner surface, eccentric wear position, abraded area and position, card traumatic part are not thoroughly repaired, and do not reach specification and American Petroleum Institute " API " standard-required by every mechanical performance of the waste oil well pipe of second way reparation.
Summary of the invention
The object of the invention is in order to solve a large amount of waste and old insulated tubing produced in field produces melt down smelt that power consumption is large, contaminated environment and repair waste and old insulated tubing by conventional method time fundamentally can not recover the former specification of insulated tubing and mechanical performance and the one waste and old insulated tubing performance recovery technique that provides.
Waste and old insulated tubing performance recovery technique provided by the invention is as described below:
The first step: make insulated tubing joint, instlated tubular joint material selects alloy high-strength steel, comprehensive mechanical performance is higher than body, it is processed as finished size with numerical control pipe thread lathe by design standard, after after the process of horizontal multicomponent thermochemical treatment stove multicomponent thermochemical treatment, make joint surface hardness >=HV500, ooze the degree of depth >=0.2mm altogether, make box cupling have anti-thread gluing characteristic, high temperature oxidation resisting etching characteristic;
Multi-component cementation method:
Step one: adopt horizontal multicomponent thermochemical treatment stove to carry out multicomponent thermochemical treatment process, ooze temperature 550-570 DEG C altogether, ooze 3 hours time altogether, the material oozed altogether in treatment fluid comprises urea, potash, sodium carbonate, lithium carbonate and potassium sulfide, and each composition is respectively by weight percentage: urea 45-50%, potash 18-28%, sodium carbonate 15-20%, lithium carbonate 8-12%, potassium sulfide 0.001-0.01%;
Step 2: adopt and horizontally ooze stove butt joint altogether and carry out multicomponent thermochemical treatment, ooze temperature 350-370 DEG C altogether, the time of oozing is 20 minutes altogether, and secondary oozes process adding material altogether and comprises: NaOH and potassium nitrate, each composition is respectively NaOH 90-95% by weight percentage, potassium nitrate: 5-10%;
Second step: make double thermal insulation box cupling, box cupling material selection alloy high-strength steel, heat insulation box cupling takes automatic welding to make by closed at both ends after putting into alumina silicate asbestos fibre cloth in two-layer sleeve pipe, by drawing box cupling is worked into finished size with numerical control pipe thread lathe again, punch in the middle part of finished product box cupling outer surface, vacuumize process with Roots type vacuum pump, make box cupling have heat insulating function, heat insulation vacuum≤5 × 10
-2mPa, then ooze process altogether through horizontal multicomponent thermochemical treatment stove, makes coupling surface hardness>=HV500, oozes the degree of depth>=0.2mm altogether, makes box cupling have anti-thread gluing characteristic, high temperature resistant, oxidation and etching characteristic simultaneously;
3rd step: unload old tubing coupling with YNK160 hydraulic screw-on machine, operates by hydraulic screw-on machine operational procedure;
4th step: the surfaces externally and internally rinsing waste and old insulated tubing with 3-DP-2 mobile high pressure cleaner physics mode, to make surfaces externally and internally greasy dirt, paint, dirt Ex-all, Ex-all rate reaches 98%;
5th step: waste and old insulated tubing is put into electrochemical deoiling agent groove and heat, remove remaining greasy dirt, paint, dirt to ensure that lower road technique is carried out smoothly, electrochemical deoiling method is through overpickling, phosphatization and saponification process;
The condition of pickling: pickle acid used is sulfuric acid, pickle concentration: 22-24%, temperature: eo-acid 20-25 DEG C, old sour 60-75 DEG C, and the ferrous content in pickle is less than 200-250g/L, pickling time 30-60 minute;
The condition of phosphatization: each weight ratio of constituents of Phosphating Solution: Zn (NO3) 28g/L, phosphoric acid 7g/L, ZnO1.25g/L, free acidity (FA) 2-4Pt (point); Total acidity (TA) 20-404Pt (point), treatment temperature: 60-80 DEG C, processing time: 3-10 minute;
Saponification Conditions: sodium soap concentration 2.0-3.5 (B.N); Free acidity: 0-1.0 point, treatment temperature: 70-80 DEG C; Processing time 3-5 minute;
This road program can by impurity residual on waste and old instlated tubular inside and outside wall and defect processing perfection;
6th step: the joint cutting off instlated tubular one end with metal cutting sawing machine, operates by Sawing machine operational procedure;
7th step: with an end surface of engine lathe processing instlated tubular, to ensure that end face is straight, clean, without greasy dirt, impurity;
8th step: with the special friction welding (FW) lathe of HSMZ-30 steel pipe, together with insulated tubing one end complete to the extraordinary heat insulation joint of ready multicomponent thermochemical treatment process and turning is welded, by HSMZ-30 friction welding operation guidelines;
9th step: the threaded joint of the other end cutting away insulated tubing with metal cutting sawing machine, operates by Sawing machine operational procedure;
Tenth step: with the end face of engine lathe processing insulated tubing, to ensure that end face is straight, clean, without greasy dirt, impurity;
11 step: with the special friction welding (FW) lathe of HSMZ-30 steel pipe, together with the other end of insulated tubing complete with turning for the extraordinary heat insulation joint of ready multicomponent thermochemical treatment process is welded;
12 step: Tempering and Quenching is carried out in weld bond position by Pipe Middle Frequency Induction Equipment for Heating Processing, to make the mechanical performance at weld bond place consistent with insulated tubing, meets API 5CT standard-required;
13 step: fall overlap inside and outside friction welding (FW) with engine lathe car, afterwards with XYHM honing machine remove the burr at weld bond place, burr reaches finished product requirement;
14 step: with oil pipe horizontal-type stretching checking machine, with the pulling force a little less than the corresponding yield strength of insulated tubing, carry out overall load tensile testing, analyzing adapter intensity meets API 5CT standard-required, F draws=70T-80T time insulation oil tubulose state good;
15 step: from the punching of instlated tubular joint buckle end 20cm place, with Roots vaccum pump intermediate layer vacuumized and close, vacuum≤5 × 10, intermediate layer
-2mPa;
16 step: be that the inner surface blasting treatment that preceding working procedure is polluted by the steel tube inner hole automatic sand-blasting machine of QGN50-250-6.00 is clean, so that lower road technique completes smoothly by model;
17 step: with professional coating equipment 40% epoxy resin fully stirred evenly and 60% organosilicon ceramic composite coating coating, being coated with to be contained in is heated on the instlated tubular inwall of 230 DEG C by BWL-holding furnace, afterwards the instlated tubular after application is sent into BWL-holding furnace, be warming up to 300 DEG C, hardening time is 100 minutes;
This step process advantage: Ceramic Composite high-temperature corrosion resistance coating stable chemical performance, to the spreadability of insulated tubing matrix and adhesion very good, the bond strength of high-intensity corrosion high-temperaure coating and oil pipe reaches one-level, the corrosion of the complete acid and alkali alkali of external coating.
18 step: use oil pipe hydraulic pressure thread screw on and-off machine, carrying out upper button according to API 5CT and API5B standard-required and installs, installing buckleing on the heat insulation box cupling of special type and insulated tubing of multicomponent thermochemical treatment process;
19 step: be QGN50-250-8.00D oil pipe cylindrical shot-blasting machine by model, the Shot Blasting of insulated tubing outer surface is clean, eliminate oil pipe residual stress simultaneously;
20 step: be that to install standby be that 4960A specialty metal baking vanish carries out application to insulated tubing outer surface model to WPHY-16 outer surface figure by model, coating specification: derusting by sandblasting need reach sa2.5 level, hand cleaning reaches st3 grade standard, remove corrosion thing, grease, the dust of steel tube surface, coating surface reaches clean, dustless, rustless and has certain roughness, coating prime lacquer within 4 hours after rust cleaning, construction surface temperature is higher than dew point more than 4 DEG C, and relative temperature is less than 85%;
Combine firmly according to this technique surface coating, have certain wearability and anticorrosive property, color and luster is different from plain tubing.
21 step: by the extraordinary mark of API 5CT standard spray, appearance test, by standard pack, hands over warehouse for finished product.
Equipment described in above step is the assembling of existing equipment, and therefore concrete model and specification do not repeat further.
Beneficial effect of the present invention:
Insulated tubing handled by waste and old insulated tubing performance recovery technique provided by the invention has good insulative properties, high-temperature oxidation, excellent anti-thread gluing characteristic and high twisting resistance, its service life will improve 3-5 doubly than new insulated tubing, can be user and save substantial contribution, specification and " API " standard-required can be reached, reach energy-saving and cost-reducing, turn waste into wealth.
Detailed description of the invention
Waste and old insulated tubing performance recovery technique provided by the invention is as described below:
The first step: make insulated tubing joint, instlated tubular joint material selects alloy high-strength steel, comprehensive mechanical performance is higher than body, it is processed as finished size with numerical control pipe thread lathe by design standard, after after the process of horizontal multicomponent thermochemical treatment stove multicomponent thermochemical treatment, make joint surface hardness >=HV500, ooze the degree of depth >=0.2mm altogether, make box cupling have anti-thread gluing characteristic, high temperature oxidation resisting etching characteristic;
Multi-component cementation method:
Step one: adopt horizontal multicomponent thermochemical treatment stove to carry out multicomponent thermochemical treatment process, ooze temperature 550-570 DEG C altogether, ooze 3 hours time altogether, the material oozed altogether in treatment fluid comprises urea, potash, sodium carbonate, lithium carbonate and potassium sulfide, and each composition is respectively by weight percentage: urea 45-50%, potash 18-28%, sodium carbonate 15-20%, lithium carbonate 8-12%, potassium sulfide 0.001-0.01%;
Step 2: adopt and horizontally ooze stove butt joint altogether and carry out multicomponent thermochemical treatment, ooze temperature 350-370 DEG C altogether, the time of oozing is 20 minutes altogether, and secondary oozes process adding material altogether and comprises: NaOH and potassium nitrate, each composition is respectively NaOH 90-95% by weight percentage, potassium nitrate: 5-10%;
Second step: make double thermal insulation box cupling, box cupling material selection alloy high-strength steel, heat insulation box cupling takes automatic welding to make by closed at both ends after putting into alumina silicate asbestos fibre cloth in two-layer sleeve pipe, by drawing box cupling is worked into finished size with numerical control pipe thread lathe again, punch in the middle part of finished product box cupling outer surface, vacuumize process with Roots type vacuum pump, make box cupling have heat insulating function, heat insulation vacuum≤5 × 10
-2mPa, then ooze process altogether through horizontal multicomponent thermochemical treatment stove, makes coupling surface hardness>=HV500, oozes the degree of depth>=0.2mm altogether, makes box cupling have anti-thread gluing characteristic, high temperature resistant, oxidation and etching characteristic simultaneously;
3rd step: unload old tubing coupling with YNK160 hydraulic screw-on machine, operates by hydraulic screw-on machine operational procedure;
4th step: the surfaces externally and internally rinsing waste and old insulated tubing with 3-DP-2 mobile high pressure cleaner physics mode, to make surfaces externally and internally greasy dirt, paint, dirt Ex-all, Ex-all rate reaches 98%;
5th step: waste and old insulated tubing is put into electrochemical deoiling agent groove and heat, remove remaining greasy dirt, paint, dirt to ensure that lower road technique is carried out smoothly, electrochemical deoiling method is through overpickling, phosphatization and saponification process;
The condition of pickling: pickle acid used is sulfuric acid, pickle concentration: 22-24%, temperature: eo-acid 20-25 DEG C, old sour 60-75 DEG C, and the ferrous content in pickle is less than 200-250g/L, pickling time 30-60 minute;
The condition of phosphatization: each weight ratio of constituents of Phosphating Solution: Zn (NO3) 28g/L, phosphoric acid 7g/L, ZnO1.25g/L, free acidity (FA) 2-4Pt (point); Total acidity (TA) 20-404Pt (point), treatment temperature: 60-80 DEG C, processing time: 3-10 minute;
Saponification Conditions: sodium soap concentration 2.0-3.5 (B.N); Free acidity: 0-1.0 point, treatment temperature: 70-80 DEG C; Processing time 3-5 minute;
This road program can by impurity residual on waste and old instlated tubular inside and outside wall and defect processing perfection;
6th step: the joint cutting off instlated tubular one end with metal cutting sawing machine, operates by Sawing machine operational procedure;
7th step: with an end surface of engine lathe processing instlated tubular, to ensure that end face is straight, clean, without greasy dirt, impurity;
8th step: with the special friction welding (FW) lathe of HSMZ-30 steel pipe, together with insulated tubing one end complete to the extraordinary heat insulation joint of ready multicomponent thermochemical treatment process and turning is welded, by HSMZ-30 friction welding operation guidelines;
9th step: the threaded joint of the other end cutting away insulated tubing with metal cutting sawing machine, operates by Sawing machine operational procedure;
Tenth step: with the end face of engine lathe processing insulated tubing, to ensure that end face is straight, clean, without greasy dirt, impurity;
11 step: with the special friction welding (FW) lathe of HSMZ-30 steel pipe, together with the other end of insulated tubing complete with turning for the extraordinary heat insulation joint of ready multicomponent thermochemical treatment process is welded;
12 step: Tempering and Quenching is carried out in weld bond position by Pipe Middle Frequency Induction Equipment for Heating Processing, to make the mechanical performance at weld bond place consistent with insulated tubing, meets API 5CT standard-required;
13 step: fall overlap inside and outside friction welding (FW) with engine lathe car, afterwards with XYHM honing machine remove the burr at weld bond place, burr reaches finished product requirement;
14 step: with oil pipe horizontal-type stretching checking machine, with the pulling force a little less than the corresponding yield strength of insulated tubing, carry out overall load tensile testing, analyzing adapter intensity meets API 5CT standard-required, F draws=70T-80T time insulation oil tubulose state good;
15 step: from the punching of instlated tubular joint buckle end 20cm place, with Roots vaccum pump intermediate layer vacuumized and close, vacuum≤5 × 10, intermediate layer
-2mPa;
16 step: be that the inner surface blasting treatment that preceding working procedure is polluted by the steel tube inner hole automatic sand-blasting machine of QGN50-250-6.00 is clean, so that lower road technique completes smoothly by model;
17 step: with professional coating equipment 40% epoxy resin fully stirred evenly and 60% organosilicon ceramic composite coating coating, being coated with to be contained in is heated on the instlated tubular inwall of 230 DEG C by BWL-holding furnace, afterwards the instlated tubular after application is sent into BWL-holding furnace, be warming up to 300 DEG C, hardening time is 100 minutes;
This step process advantage: Ceramic Composite high-temperature corrosion resistance coating stable chemical performance, to the spreadability of insulated tubing matrix and adhesion very good, the bond strength of high-intensity corrosion high-temperaure coating and oil pipe reaches one-level, the corrosion of the complete acid and alkali alkali of external coating.
18 step: use oil pipe hydraulic pressure thread screw on and-off machine, carrying out upper button according to API 5CT and API5B standard-required and installs, installing buckleing on the heat insulation box cupling of special type and insulated tubing of multicomponent thermochemical treatment process;
19 step: be QGN50-250-8.00D oil pipe cylindrical shot-blasting machine by model, the Shot Blasting of insulated tubing outer surface is clean, eliminate oil pipe residual stress simultaneously;
20 step: be that to install standby be that 4960A specialty metal baking vanish carries out application to insulated tubing outer surface model to WPHY-16 outer surface figure by model, coating specification: derusting by sandblasting need reach sa2.5 level, hand cleaning reaches st3 grade standard, remove corrosion thing, grease, the dust of steel tube surface, coating surface reaches clean, dustless, rustless and has certain roughness, coating prime lacquer within 4 hours after rust cleaning, construction surface temperature should higher than dew point more than 4 DEG C, and relative temperature is less than 85%;
Combine firmly according to this technique surface coating, have certain wearability and anticorrosive property, color and luster is different from plain tubing.
21 step: by the extraordinary mark of API 5CT standard spray, appearance test, by standard pack, hands over warehouse for finished product.
Equipment described in above step is the assembling of existing equipment, and therefore concrete model and specification do not repeat further.
Claims (1)
1. a waste and old insulated tubing performance recovery technique, is characterized in that: its processing step is as described below:
The first step: make insulated tubing joint, instlated tubular joint material selects alloy high-strength steel, comprehensive mechanical performance is higher than body, it is processed as finished size with numerical control pipe thread lathe by design standard, after after the process of horizontal multicomponent thermochemical treatment stove multicomponent thermochemical treatment, make joint surface hardness >=HV500, ooze the degree of depth >=0.2mm altogether, make box cupling have anti-thread gluing characteristic, high temperature oxidation resisting etching characteristic;
Multi-component cementation method:
Step one: adopt horizontal multicomponent thermochemical treatment stove to carry out multicomponent thermochemical treatment process, ooze temperature 550-570 DEG C altogether, ooze 3 hours time altogether, the material oozed altogether in treatment fluid comprises urea, potash, sodium carbonate, lithium carbonate and potassium sulfide, and each composition is respectively by weight percentage: urea 45-50%, potash 18-28%, sodium carbonate 15-20%, lithium carbonate 8-12%, potassium sulfide 0.001-0.01%;
Step 2: adopt and horizontally ooze stove butt joint altogether and carry out multicomponent thermochemical treatment, ooze temperature 350-370 DEG C altogether, the time of oozing is 20 minutes altogether, and secondary oozes process adding material altogether and comprises: NaOH and potassium nitrate, each composition is respectively NaOH 90-95% by weight percentage, potassium nitrate: 5-10%;
Second step: make double thermal insulation box cupling, box cupling material selection alloy high-strength steel, heat insulation box cupling takes automatic welding to make by closed at both ends after putting into alumina silicate asbestos fibre cloth in two-layer sleeve pipe, by drawing box cupling is worked into finished size with numerical control pipe thread lathe again, punch in the middle part of finished product box cupling outer surface, vacuumize process with Roots type vacuum pump, make box cupling have heat insulating function, heat insulation vacuum≤5 × 10
-2mPa, then ooze process altogether through horizontal multicomponent thermochemical treatment stove, makes coupling surface hardness>=HV500, oozes the degree of depth>=0.2mm altogether, makes box cupling have anti-thread gluing characteristic, high temperature resistant, oxidation and etching characteristic simultaneously;
3rd step: unload old tubing coupling with YNK160 hydraulic screw-on machine, operates by hydraulic screw-on machine operational procedure;
4th step: the surfaces externally and internally rinsing waste and old insulated tubing with 3-DP-2 mobile high pressure cleaner physics mode, to make surfaces externally and internally greasy dirt, paint, dirt Ex-all, Ex-all rate reaches 98%;
5th step: waste and old insulated tubing is put into electrochemical deoiling agent groove and heat, remove remaining greasy dirt, paint, dirt to ensure that lower road technique is carried out smoothly, electrochemical deoiling method is through overpickling, phosphatization and saponification process;
The condition of pickling: pickle acid used is sulfuric acid, pickle concentration: 22-24%, temperature: eo-acid 20-25 DEG C, old sour 60-75 DEG C, and the ferrous content in pickle is less than 200-250g/L, pickling time 30-60 minute;
The condition of phosphatization: each weight ratio of constituents of Phosphating Solution: Zn (NO3) 28g/L, phosphoric acid 7g/L, ZnO1.25g/L, free acidity (FA) 2-4Pt (point); Total acidity (TA) 20-404Pt (point), treatment temperature: 60-80 DEG C, processing time: 3-10 minute;
Saponification Conditions: sodium soap concentration 2.0-3.5 (B.N); Free acidity: 0-1.0 point, treatment temperature: 70-80 DEG C; Processing time 3-5 minute;
6th step: the joint cutting off instlated tubular one end with metal cutting sawing machine, operates by Sawing machine operational procedure;
7th step: with an end surface of engine lathe processing instlated tubular, to ensure that end face is straight, clean, without greasy dirt, impurity;
8th step: with the special friction welding (FW) lathe of HSMZ-30 steel pipe, together with insulated tubing one end complete to the extraordinary heat insulation joint of ready multicomponent thermochemical treatment process and turning is welded, by HSMZ-30 friction welding operation guidelines;
9th step: the threaded joint of the other end cutting away insulated tubing with metal cutting sawing machine, operates by Sawing machine operational procedure;
Tenth step: with the end face of engine lathe processing insulated tubing, to ensure that end face is straight, clean, without greasy dirt, impurity;
11 step: with the special friction welding (FW) lathe of HSMZ-30 steel pipe, together with the other end of insulated tubing complete with turning for the extraordinary heat insulation joint of ready multicomponent thermochemical treatment process is welded;
12 step: Tempering and Quenching is carried out in weld bond position by Pipe Middle Frequency Induction Equipment for Heating Processing, to make the mechanical performance at weld bond place consistent with insulated tubing, meets API 5CT standard-required;
13 step: fall overlap inside and outside friction welding (FW) with engine lathe car, afterwards with XYHM honing machine remove the burr at weld bond place, burr reaches finished product requirement;
14 step: with oil pipe horizontal-type stretching checking machine, with the pulling force a little less than the corresponding yield strength of insulated tubing, carry out overall load tensile testing, analyzing adapter intensity meets API 5CT standard-required, F draws=70T-80T time insulation oil tubulose state good;
15 step: from the punching of instlated tubular joint buckle end 20cm place, with Roots vaccum pump intermediate layer vacuumized and close, vacuum≤5 × 10, intermediate layer
-2mPa;
16 step: be that the inner surface blasting treatment that preceding working procedure is polluted by the steel tube inner hole automatic sand-blasting machine of QGN50-250-6.00 is clean, so that lower road technique completes smoothly by model;
17 step: with professional coating equipment 40% epoxy resin fully stirred evenly and 60% organosilicon ceramic composite coating coating, being coated with to be contained in is heated on the instlated tubular inwall of 230 DEG C by BWL-holding furnace, afterwards the instlated tubular after application is sent into BWL-holding furnace, be warming up to 300 DEG C, hardening time is 100 minutes;
18 step: use oil pipe hydraulic pressure thread screw on and-off machine, carrying out upper button according to API 5CT and API5B standard-required and installs, installing buckleing on the heat insulation box cupling of special type and insulated tubing of multicomponent thermochemical treatment process;
19 step: be QGN50-250-8.00D oil pipe cylindrical shot-blasting machine by model, the Shot Blasting of insulated tubing outer surface is clean, eliminate oil pipe residual stress simultaneously;
20 step: be that to install standby be that 4960A specialty metal baking vanish carries out application to insulated tubing outer surface model to WPHY-16 outer surface figure by model, coating specification: derusting by sandblasting need reach sa2.5 level, hand cleaning reaches st3 grade standard, remove corrosion thing, grease, the dust of steel tube surface, coating surface reaches clean, dustless, rustless and has certain roughness, coating prime lacquer within 4 hours after rust cleaning, construction surface temperature should higher than dew point more than 4 DEG C, and relative temperature is less than 85%;
21 step: by the extraordinary mark of API 5CT standard spray, appearance test, by standard pack, hands over warehouse for finished product.
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| CN201510172171.7A CN104786001B (en) | 2015-04-13 | 2015-04-13 | A kind of waste and old insulated tubing performance recovery technique |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002079A (en) * | 2016-06-21 | 2016-10-12 | 胜利油田物华管业有限公司 | Repairing equipment and technique for old oil pipe |
| CN108127003A (en) * | 2017-12-06 | 2018-06-08 | 江苏银环精密钢管有限公司 | A kind of manufacturing method of drilling tool 23CrNi3Mo steel alloy seamless pipes |
| CN109877522A (en) * | 2019-03-21 | 2019-06-14 | 冮振双 | A kind of waste and old oil passageway hot rolling reconstructing and repairing process |
| CN113000623A (en) * | 2021-02-22 | 2021-06-22 | 吕学民 | Equal-diameter and equal-thickness repairing process for waste oil pipe of hot-rolled plastic-deformation oil field |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5853199A (en) * | 1995-09-18 | 1998-12-29 | Grant Prideco, Inc. | Fatigue resistant drill pipe |
| CN101307676A (en) * | 2007-05-15 | 2008-11-19 | 九环机械股份有限公司 | Renewed superhigh intensity distortion-resistant anti-corrosive oil well pipe and its process |
| CN101832108A (en) * | 2010-05-07 | 2010-09-15 | 湖北贵族真空科技股份有限公司 | Vacuum oil tubing coupling |
| CN101947714A (en) * | 2010-08-19 | 2011-01-19 | 杨永利 | Integral processing method for refabrication of waste oil tube |
| CN102174878A (en) * | 2011-02-22 | 2011-09-07 | 梅河口市弘业无缝钢管有限公司 | Special type oil well pipe with changed materials and structural layers at two ends and manufacturing method thereof |
| CN102581542A (en) * | 2012-02-07 | 2012-07-18 | 梅河口市弘业无缝钢管有限公司 | Waste and old oil well pipe performance recovery process |
| CN103114292A (en) * | 2013-02-18 | 2013-05-22 | 梅河口市弘业无缝钢管有限公司 | Laser-cladded oil well pipe subjected to multicomponent cementation compound treatment and production process and device |
-
2015
- 2015-04-13 CN CN201510172171.7A patent/CN104786001B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5853199A (en) * | 1995-09-18 | 1998-12-29 | Grant Prideco, Inc. | Fatigue resistant drill pipe |
| CN101307676A (en) * | 2007-05-15 | 2008-11-19 | 九环机械股份有限公司 | Renewed superhigh intensity distortion-resistant anti-corrosive oil well pipe and its process |
| CN101832108A (en) * | 2010-05-07 | 2010-09-15 | 湖北贵族真空科技股份有限公司 | Vacuum oil tubing coupling |
| CN101947714A (en) * | 2010-08-19 | 2011-01-19 | 杨永利 | Integral processing method for refabrication of waste oil tube |
| CN102174878A (en) * | 2011-02-22 | 2011-09-07 | 梅河口市弘业无缝钢管有限公司 | Special type oil well pipe with changed materials and structural layers at two ends and manufacturing method thereof |
| CN102581542A (en) * | 2012-02-07 | 2012-07-18 | 梅河口市弘业无缝钢管有限公司 | Waste and old oil well pipe performance recovery process |
| CN103114292A (en) * | 2013-02-18 | 2013-05-22 | 梅河口市弘业无缝钢管有限公司 | Laser-cladded oil well pipe subjected to multicomponent cementation compound treatment and production process and device |
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Denomination of invention: Waste thermal insulation oil pipe performance recovery process Effective date of registration: 20180329 Granted publication date: 20170623 Pledgee: Jilin Liang Cheng guarantee investment Co., Ltd. Pledgor: Meihekou City Hongye Seamless Steel Tube Co., Ltd. Registration number: 2018220000009 |