CN102747365A - Preparation method for steel pipe having wear-resistant and corrosion-resistant lining layer - Google Patents
Preparation method for steel pipe having wear-resistant and corrosion-resistant lining layer Download PDFInfo
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- CN102747365A CN102747365A CN2012102048025A CN201210204802A CN102747365A CN 102747365 A CN102747365 A CN 102747365A CN 2012102048025 A CN2012102048025 A CN 2012102048025A CN 201210204802 A CN201210204802 A CN 201210204802A CN 102747365 A CN102747365 A CN 102747365A
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Abstract
The invention relates to a preparation method for a steel pipe having a wear-resistant and corrosion-resistant lining layer, and belongs to the technical field of surface coating. The preparation method comprises the following steps of cleaning the inner surface of the steel pipe removing oil and rust; loading an alloy powder into the steel pipe and enclosing two ends of the steel pipe; melting the alloy powder through induction coils with the steel pipe going forward when rotating; spray cooling; and then unloading the steel pipe. The steel pipe manufactured by the preparation method has high adhesive strength of coatings, high production efficiency, long service life of the steel pipe and excellent integrated cost performance, can realize recycling utilization of waste steel pipes, and realizes remanufacturing.
Description
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Technical field
[0001] the present invention relates to a kind of steel pipe preparation method, belong to technical field of surface coating with wear-and corrosion-resistant lining.
Background technology
[0002] oil pipe is one of major equipment of oil production.Along with China oil field progresses into the exploitation middle and later periods, oil well is more and more darker, and hole condition becomes increasingly complex, and the water ratio in the produced liquid in oil well, sand factor and extent of corrosion are increasingly high.It is serious day by day to cause the wear problem of oil pipe under in oil-water media, washing away for a long time thus.And oil pipe is in the process of oil production, and also there are eccentric wear in sucker rod and oil pipe.The oil and water well corrosive mainly comes from various dissolved salts, especially cl ions, the CO in the moity of oilfield sewage, extraction liquid and associated gas
2, H
2S etc. are the principal elements of tube corrosion.Therefore visible, oil pipe is operated in existing corrosion to be had again under the mal-condition of wearing and tearing, all has every year big dipping tube to need to change.This has caused very big financial loss, and has promoted cost for oil production.Meanwhile, the annual demand to oil pipe in the whole world reaches 1,500 ten thousand tons, and China is the big producing country of oil well pipe, and production capacity surpasses 1,000 ten thousand tons, accounts for the whole world 2/3.Therefore, the wear-and corrosion-resistant oil pipe of development of new prolongs oil pipe work-ing life, will have strong product competitiveness, has wide market outlook.
[0003] present; In order to solve pipe inner surface wearing and tearing and etching problem, the existing oil pipes such as (SHS) ceramic-lined oil pipe, carburizing (nitrogen) oil pipe, organic materials lining oil pipe and tungsten alloy plating oil pipe that synthesize from climing combustion high temperature are developed.Though these all kinds of oil pipes respectively have characteristics; For example, the ceramic-lined oil pipe of SHS utilize the manufacturing of aluminothermy centrifuging, ceramic layer has high wear resistance and solidity to corrosion; But actual the requirement more than the ceramic layer thickness 1mm makes final pipe aperture be difficult to satisfy the requirement of API latus rectum.Carburizing (nitrogen) oil pipe forms the skim infiltration layer in the internal skin, but does not have solidity to corrosion.The organic materials lining only can solve etching problem, but wears no resistance.Though the tungsten alloy plating oil pipe thin thickness of development in recent years, and combine wear-resisting and solidity to corrosion, its wear-and corrosion-resistant is comprehensive general, and production efficiency is low.Hot-spraying techniques can form the wear-and corrosion-resistant coating on the common iron surface, but can't realize for elongated inner surface of pipeline.Therefore, still there is not gratifying tubing product on wear-resisting and anti-corrosion over-all properties so far.
[0004] in addition, after steel pipe uses for some time, because problems such as inside corrosion and wearing and tearing; The tube wall attenuate; Intensity and index such as withstand voltage do not reach also to be needed when requiring to change, and the steel pipe that change this moment falls as scrap handling, has also caused very big waste.If can realize recycling, realize the manufacturing again of steel pipe, then can reach the purpose of energy-saving and emission-reduction.
[0005] in sum, along with oil pipe market is vigorous to wear-and corrosion-resistant oil pipe increasing demand, press for to develop a kind of oil pipe with excellent wear and corrosion behavior, and production efficiency is high, comprehensive price ratio is high, the tubing product that is easy to apply.
Summary of the invention
[0006] the present invention provides a kind of manufacture of steel pipe with wear-and corrosion-resistant lining, improves the wear-and corrosion-resistant over-all properties and the comprehensive price ratio of oil pipe.
[0007] manufacture of steel pipe with wear-and corrosion-resistant lining of the present invention comprises the steps: (1) steel pipe internal-surface cleaning: at first the steel pipe internal-surface greasy dirt is removed in alkali cleaning, adopts sandblast or shot-peening method to remove the steel pipe internal-surface rusty scale again; (2) charging: powdered alloy is arranged in steel duct along the steel pipe length direction; The steel pipe two ends are sealed through the end cap that welding has conduit; With the vacuum unit steel duct is vacuumized; Pressure reaches 1 ~ 20Pa, then the conduit sealing is kept vacuum, perhaps feeds rare gas element through conduit; (3) induction melting: steel pipe is packed in the ruhmkorff coil; Steel pipe is advanced while rotating; The speed of rotation of steel pipe makes steel pipe internal-surface cf-reach 1g ~ 10g; Rate of advance is PM 0.5 ~ 2.0m, and Heating temperature reaches 1050 ~ 1150 ℃, and water spray cooled off after steel pipe went out load coil; (4) unload pipe:, obtain having the steel pipe of corrosion-proof wear lining with the end cap excision of above-mentioned steps (2).
[0008] in the manufacture of steel pipe of the present invention, said powdered alloy comprises any one in nickel-based self-fluxing alloy powder, the fe-based self-fluxing alloy powder.Said powdered alloy can also comprise wolfram varbide, titanium carbide, chromium carbide powder, and its content is 5 ~ 30wt%.
[0009] steel pipe that adopts manufacture of steel pipe of the present invention to obtain is realized metallurgical binding by induction heating between its wear-and corrosion-resistant lining and the steel pipe, and bonding strength is high, in transportation, installation and use, can not come off.And the lining hardness that adopts nickel-based self-fluxing alloy powder or iron-based self-fluxing powder to obtain is high, and wear resistance is good, and especially nickel-based self-fluxing alloy also has excellent corrosion resisting property.In order further to improve the wear resistance of lining, can also add hard-phase particles therein, for example wolfram varbide, titanium carbide, chromium carbide powder.Prolong thus steel pipe wearing and tearing and abrasive environment under work-ing life, improve more than 5 times work-ing life than original steel pipe.
[0010] manufacture of steel pipe of the present invention can be realized online serialization industrial production through corresponding mechanism; Production efficiency is high; Therefore reduce the comprehensive cost of the finished product, thereby adopted the steel pipe with wear-and corrosion-resistant of the inventive method manufacturing to have high comprehensive price ratio.In addition, can also realize the steel pipe recycling, realize the manufacturing again of steel pipe, can reach the purpose of energy-saving and emission-reduction.
Embodiment
[0011] steel pipe will carry out clean to bore surface before the preparation lining, at first can remove greasy dirt through alkali cleaning, adopted sandblast or shot-peening method that the corrosion of steel pipe internal-surface is removed again, exposed silver gray steel pipe matrix.
[0012] self-fusible alloy powder of nickel-base or fe-based self-fluxing alloy powder have excellent abrasive, and fusing point is low, generally about 1050 ℃, are applied in the hot-spraying techniques usually.The present invention adopts this self-fluxing alloy powder to form the air retaining wall of steel pipe.Powdered alloy along the postpone of steel pipe length cloth, in order to prevent the oxidation of powder in the heating steps in the back, need be vacuumized steel duct or blanketing with inert gas.Earlier the end cap welded closure is used at the steel pipe two ends.On end cap, stay one section conduit, utilize this conduit to vacuumize with vacuum unit (for example, mechanical pump+lobe pump), make that pressure reaches between 1 ~ 20Pa in the steel pipe, welded closure conduit then is with keeping vacuum in the steel pipe.Perhaps utilize conduit to feed rare gas element, for example nitrogen or argon gas.In order further to improve the wear resistance of lining, can also add hard-phase particles therein, for example wolfram varbide, titanium carbide, chromium carbide powder, its content accounts for 5 ~ 35wt%.
[0013] then above-mentioned steel pipe is packed in the load coil, utilize induction heating that steel pipe is heated to 1050 ~ 1150 ℃, make above-mentioned self-fluxing powder fusing.Meanwhile, drive the steel pipe rotation, the speed of rotation makes the cf-of steel pipe internal-surface arrive 1g ~ 10g (g represents universal gravity constant) here, makes the alloy of fusing form lining at steel pipe internal-surface.Simultaneously, also drive steel pipe and advance, promptly from an end continuous melting of steel pipe to the other end, accomplish the manufacturing of a steel pipe.After the steel pipe of heating partly leaves ruhmkorff coil, to the Blasting of Steel Pipes water cooling.Unload after whole steel pipe heating accomplished, excise the end cap at two ends, promptly obtain having the steel pipe of wear-and corrosion-resistant lining.
[0014] below in conjunction with embodiment the present invention is described.
[0015] embodiment 1
[0016] (1) steel pipe internal-surface cleaning: at first the steel pipe internal-surface greasy dirt is removed in alkali cleaning, adopts sand-blast to remove the steel pipe internal-surface rusty scale again; (2) charging: self-fusible alloy powder of nickel-base is arranged in steel duct along the steel pipe length direction; The steel pipe two ends are sealed through the end cap that welding has conduit; With the vacuum unit steel duct is vacuumized, pressure reaches 1Pa, then the conduit sealing is kept vacuum; (3) induction melting: steel pipe is packed in the ruhmkorff coil; Steel pipe is advanced while rotating, and the speed of rotation of steel pipe makes steel pipe internal-surface cf-reach 1g, and rate of advance is PM 2.0m; Heating temperature reaches 1150 ℃, and water spray cooled off after steel pipe went out load coil; (4) unload pipe:, obtain having the steel pipe of corrosion-proof wear lining with the end cap excision of above-mentioned steps (2).
[0017] embodiment 2
[0018] (1) steel pipe internal-surface cleaning: at first the steel pipe internal-surface greasy dirt is removed in alkali cleaning, adopts the shot-peening method to remove the steel pipe internal-surface rusty scale again; (2) charging: self-fusible alloy powder of nickel-base is arranged in steel duct along the steel pipe length direction; The steel pipe two ends are sealed through the end cap that welding has conduit; With the vacuum unit steel duct is vacuumized, pressure reaches 20Pa, then the conduit sealing is kept vacuum; (3) induction melting: steel pipe is packed in the ruhmkorff coil; Steel pipe is advanced while rotating, and the speed of rotation of steel pipe makes steel pipe internal-surface cf-reach 10g, and rate of advance is PM 0.5m; Heating temperature reaches 1050 ℃, and water spray cooled off after steel pipe went out load coil; (4) unload pipe:, obtain having the steel pipe of corrosion-proof wear lining with the end cap excision of above-mentioned steps (2).
[0019] embodiment 3
[0020] (1) steel pipe internal-surface cleaning: at first the steel pipe internal-surface greasy dirt is removed in alkali cleaning, adopts sand-blast to remove the steel pipe internal-surface rusty scale again; (2) charging: self-fusible alloy powder of nickel-base is arranged in steel duct along the steel pipe length direction; The steel pipe two ends are sealed through the end cap that welding has conduit; With the vacuum unit steel duct is vacuumized, pressure reaches 10Pa, then the conduit sealing is kept vacuum; (3) induction melting: steel pipe is packed in the ruhmkorff coil; Steel pipe is advanced while rotating, and the speed of rotation of steel pipe makes steel pipe internal-surface cf-reach 5g, and rate of advance is PM 1.0m; Heating temperature reaches 1100 ℃, and water spray cooled off after steel pipe went out load coil; (4) unload pipe:, obtain having the steel pipe of corrosion-proof wear lining with the end cap excision of above-mentioned steps (2).
[0021] embodiment 4
[0022] (1) steel pipe internal-surface cleaning: at first the steel pipe internal-surface greasy dirt is removed in alkali cleaning, adopts sand-blast to remove the steel pipe internal-surface rusty scale again; (2) charging: fe-based self-fluxing alloy powder is arranged in steel duct along the steel pipe length direction; The steel pipe two ends are sealed through the end cap that welding has conduit; With the vacuum unit steel duct is vacuumized, pressure reaches 5Pa, then the conduit sealing is kept vacuum; (3) induction melting: steel pipe is packed in the ruhmkorff coil; Steel pipe is advanced while rotating, and the speed of rotation of steel pipe makes steel pipe internal-surface cf-reach 3g, and rate of advance is PM 1.5m; Heating temperature reaches 1100 ℃, and water spray cooled off after steel pipe went out load coil; (4) unload pipe:, obtain having the steel pipe of corrosion-proof wear lining with the end cap excision of above-mentioned steps (2).
[0023] embodiment 5
[0024] (1) steel pipe internal-surface cleaning: at first the steel pipe internal-surface greasy dirt is removed in alkali cleaning, adopts sand-blast to remove the steel pipe internal-surface rusty scale again; (2) charging: fe-based self-fluxing alloy powder is arranged in steel duct along the steel pipe length direction, the steel pipe two ends are sealed through the end cap that welding has conduit, from conduit, feed nitrogen then; (3) induction melting: steel pipe is packed in the ruhmkorff coil; Steel pipe is advanced while rotating, and the speed of rotation of steel pipe makes steel pipe internal-surface cf-reach 2g, and rate of advance is PM 1.0m; Heating temperature reaches 1080 ℃, and water spray cooled off after steel pipe went out load coil; (4) unload pipe:, obtain having the steel pipe of corrosion-proof wear lining with the end cap excision of above-mentioned steps (2).
[0025] embodiment 6
[0026] (1) steel pipe internal-surface cleaning: at first the steel pipe internal-surface greasy dirt is removed in alkali cleaning, adopts sand-blast to remove the steel pipe internal-surface rusty scale again; (2) charging: fe-based self-fluxing alloy powder is arranged in steel duct along the steel pipe length direction, the steel pipe two ends are sealed through the end cap that welding has conduit, from conduit, feed argon gas then; (3) induction melting: steel pipe is packed in the ruhmkorff coil; Steel pipe is advanced while rotating, and the speed of rotation of steel pipe makes steel pipe internal-surface cf-reach 2g, and rate of advance is PM 1.0m; Heating temperature reaches 1080 ℃, and water spray cooled off after steel pipe went out load coil; (4) unload pipe:, obtain having the steel pipe of corrosion-proof wear lining with the end cap excision of above-mentioned steps (2).
[0027] embodiment 7
[0028] (1) steel pipe internal-surface cleaning: at first the steel pipe internal-surface greasy dirt is removed in alkali cleaning, adopts sand-blast to remove the steel pipe internal-surface rusty scale again; (2) charging: the hybrid alloys powder of fe-based self-fluxing alloy powder+35wt% titanium carbide powder is arranged in steel duct along the steel pipe length direction, the steel pipe two ends are sealed through the end cap that welding has conduit, from conduit, feed nitrogen then; (3) induction melting: steel pipe is packed in the ruhmkorff coil; Steel pipe is advanced while rotating, and the speed of rotation of steel pipe makes steel pipe internal-surface cf-reach 3g, and rate of advance is PM 1.2m; Heating temperature reaches 1120 ℃, and water spray cooled off after steel pipe went out load coil; (4) unload pipe:, obtain having the steel pipe of corrosion-proof wear lining with the end cap excision of above-mentioned steps (2).
[0029] embodiment 8
[0030] (1) steel pipe internal-surface cleaning: at first the steel pipe internal-surface greasy dirt is removed in alkali cleaning, adopts sand-blast to remove the steel pipe internal-surface rusty scale again; (2) charging: the hybrid alloys powder of fe-based self-fluxing alloy powder+5wt% titanium carbide powder is arranged in steel duct along the steel pipe length direction, the steel pipe two ends are sealed through the end cap that welding has conduit, from conduit, feed nitrogen then; (3) induction melting: steel pipe is packed in the ruhmkorff coil; Steel pipe is advanced while rotating, and the speed of rotation of steel pipe makes steel pipe internal-surface cf-reach 4g, and rate of advance is PM 0.8m; Heating temperature reaches 1100 ℃, and water spray cooled off after steel pipe went out load coil; (4) unload pipe:, obtain having the steel pipe of corrosion-proof wear lining with the end cap excision of above-mentioned steps (2).
[0031] embodiment 9
[0032] (1) steel pipe internal-surface cleaning: at first the steel pipe internal-surface greasy dirt is removed in alkali cleaning, adopts sand-blast to remove the steel pipe internal-surface rusty scale again; (2) charging: the hybrid alloys powder of self-fusible alloy powder of nickel-base+35wt% tungsten-carbide powder is arranged in steel duct along the steel pipe length direction, the steel pipe two ends are sealed through the end cap that welding has conduit, from conduit, feed nitrogen then; (3) induction melting: steel pipe is packed in the ruhmkorff coil; Steel pipe is advanced while rotating, and the speed of rotation of steel pipe makes steel pipe internal-surface cf-reach 3g, and rate of advance is PM 1.2m; Heating temperature reaches 1120 ℃, and water spray cooled off after steel pipe went out load coil; (4) unload pipe:, obtain having the steel pipe of corrosion-proof wear lining with the end cap excision of above-mentioned steps (2).
[0033] embodiment 10
[0034] (1) steel pipe internal-surface cleaning: at first the steel pipe internal-surface greasy dirt is removed in alkali cleaning, adopts sand-blast to remove the steel pipe internal-surface rusty scale again; (2) charging: the hybrid alloys powder of self-fusible alloy powder of nickel-base+35wt% tungsten-carbide powder is arranged in steel duct along the steel pipe length direction, the steel pipe two ends are sealed through the end cap that welding has conduit, from conduit, feed nitrogen then; (3) induction melting: steel pipe is packed in the ruhmkorff coil; Steel pipe is advanced while rotating, and the speed of rotation of steel pipe makes steel pipe internal-surface cf-reach 3g, and rate of advance is PM 1.2m; Heating temperature reaches 1120 ℃, and water spray cooled off after steel pipe went out load coil; (4) unload pipe:, obtain having the steel pipe of corrosion-proof wear lining with the end cap excision of above-mentioned steps (2).
[0035] embodiment 11
[0036] (1) steel pipe internal-surface cleaning: at first the steel pipe internal-surface greasy dirt is removed in alkali cleaning, adopts sand-blast to remove the steel pipe internal-surface rusty scale again; (2) charging: the hybrid alloys powder of self-fusible alloy powder of nickel-base+30wt% chromium carbide powder is arranged in steel duct along the steel pipe length direction, the steel pipe two ends are sealed through the end cap that welding has conduit, from conduit, feed nitrogen then; (3) induction melting: steel pipe is packed in the ruhmkorff coil; Steel pipe is advanced while rotating, and the speed of rotation of steel pipe makes steel pipe internal-surface cf-reach 3g, and rate of advance is PM 1.2m; Heating temperature reaches 1120 ℃, and water spray cooled off after steel pipe went out load coil; (4) unload pipe:, obtain having the steel pipe of corrosion-proof wear lining with the end cap excision of above-mentioned steps (2).
[0037] embodiment 11
[0038] (1) steel pipe internal-surface cleaning: at first the steel pipe internal-surface greasy dirt is removed in alkali cleaning, adopts sand-blast to remove the steel pipe internal-surface rusty scale again; (2) charging: the hybrid alloys powder of self-fusible alloy powder of nickel-base+30wt% chromium carbide powder is arranged in steel duct along the steel pipe length direction; The steel pipe two ends are sealed through the end cap that welding has conduit; With the vacuum unit steel duct is vacuumized; Pressure reaches 5Pa, then the conduit sealing is kept vacuum; (3) induction melting: steel pipe is packed in the ruhmkorff coil; Steel pipe is advanced while rotating, and the speed of rotation of steel pipe makes steel pipe internal-surface cf-reach 3g, and rate of advance is PM 1.2m; Heating temperature reaches 1120 ℃, and water spray cooled off after steel pipe went out load coil; (4) unload pipe:, obtain having the steel pipe of corrosion-proof wear lining with the end cap excision of above-mentioned steps (2).
[0039] embodiment 12
[0040] (1) steel pipe internal-surface cleaning: at first the steel pipe internal-surface greasy dirt is removed in alkali cleaning, adopts sand-blast to remove the steel pipe internal-surface rusty scale again; (2) charging: the hybrid alloys powder of self-fusible alloy powder of nickel-base+20wt% chromium carbide powder is arranged in steel duct along the steel pipe length direction; The steel pipe two ends are sealed through the end cap that welding has conduit; With the vacuum unit steel duct is vacuumized; Pressure reaches 5Pa, then the conduit sealing is kept vacuum; (3) induction melting: steel pipe is packed in the ruhmkorff coil; Steel pipe is advanced while rotating, and the speed of rotation of steel pipe makes steel pipe internal-surface cf-reach 3g, and rate of advance is PM 1.2m; Heating temperature reaches 1120 ℃, and water spray cooled off after steel pipe went out load coil; (4) unload pipe:, obtain having the steel pipe of corrosion-proof wear lining with the end cap excision of above-mentioned steps (2).
Claims (4)
1. the steel pipe preparation method with wear-and corrosion-resistant lining is characterized in that comprising the steps:
(1) steel pipe internal-surface cleaning: at first the steel pipe internal-surface greasy dirt is removed in alkali cleaning, adopts sandblast or shot-peening method to remove the steel pipe internal-surface rusty scale again;
(2) charging: powdered alloy is arranged in steel duct along the steel pipe length direction; The steel pipe two ends are sealed through the end cap that welding has conduit; With the vacuum unit steel duct is vacuumized; Pressure reaches 1 ~ 20Pa, then the conduit sealing is kept vacuum, perhaps feeds rare gas element through conduit;
(3) induction melting: steel pipe is packed in the ruhmkorff coil; Steel pipe is advanced while rotating; The speed of rotation of steel pipe makes steel pipe internal-surface cf-reach 1g ~ 10g; Rate of advance is PM 0.5 ~ 2.0m, and Heating temperature reaches 1050 ~ 1150 ℃, and water spray cooled off after steel pipe went out load coil;
(4) unload pipe:, obtain having the steel pipe of corrosion-proof wear lining with the end cap excision of above-mentioned steps (2).
2. method according to claim 1 is characterized in that: said powdered alloy comprises any one in nickel-based self-fluxing alloy powder, the fe-based self-fluxing alloy powder.
3. method according to claim 2 is characterized in that: said powdered alloy also comprises wolfram varbide, titanium carbide or chromium carbide powder, and its content is 5 ~ 30wt%.
4. method according to claim 1 is characterized in that: said rare gas element comprises any one in nitrogen, the argon gas.
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| CN2012102048025A CN102747365A (en) | 2012-06-20 | 2012-06-20 | Preparation method for steel pipe having wear-resistant and corrosion-resistant lining layer |
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| CN2012102048025A CN102747365A (en) | 2012-06-20 | 2012-06-20 | Preparation method for steel pipe having wear-resistant and corrosion-resistant lining layer |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103103521A (en) * | 2013-01-24 | 2013-05-15 | 广东新劲刚新材料科技股份有限公司 | Preparation method of strengthened coating |
| CN103753224A (en) * | 2014-01-08 | 2014-04-30 | 金寨县原元康塑料机械制造有限公司 | Seamless steel tube processing technique for plastics machines |
| CN104525909A (en) * | 2014-11-18 | 2015-04-22 | 西安理工大学 | Wear-resisting pipe and manufacturing method thereof |
| CN104805435A (en) * | 2015-04-24 | 2015-07-29 | 中国人民解放军装甲兵工程学院 | Preparation method of metal protective coating for inner wall surface of inner bore part |
| CN104962903A (en) * | 2015-07-09 | 2015-10-07 | 江苏中圣压力容器装备制造有限公司 | Method and device for manufacturing surface porous heat transfer tubes |
| CN106424628A (en) * | 2016-11-23 | 2017-02-22 | 浙江双飞无油轴承股份有限公司 | Automatic continuous centrifugal casting production process |
| CN106424666A (en) * | 2016-11-10 | 2017-02-22 | 浙江双飞无油轴承股份有限公司 | Centrifugal casting, rapid cooling and quenching process for steel-based bimetal |
| CN108612919A (en) * | 2018-04-27 | 2018-10-02 | 胡建芳 | A kind of phase shell type specialty metal seamless pipe and preparation method thereof |
| CN110846655A (en) * | 2019-11-27 | 2020-02-28 | 武汉古锐恩环保科技有限公司 | Production process of high-frequency cladding anti-corrosion wear-resistant pipe |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103103521A (en) * | 2013-01-24 | 2013-05-15 | 广东新劲刚新材料科技股份有限公司 | Preparation method of strengthened coating |
| CN103753224A (en) * | 2014-01-08 | 2014-04-30 | 金寨县原元康塑料机械制造有限公司 | Seamless steel tube processing technique for plastics machines |
| CN104525909A (en) * | 2014-11-18 | 2015-04-22 | 西安理工大学 | Wear-resisting pipe and manufacturing method thereof |
| CN104525909B (en) * | 2014-11-18 | 2016-08-24 | 西安理工大学 | Wear-resistant pipe and preparation method thereof |
| CN104805435A (en) * | 2015-04-24 | 2015-07-29 | 中国人民解放军装甲兵工程学院 | Preparation method of metal protective coating for inner wall surface of inner bore part |
| CN104962903A (en) * | 2015-07-09 | 2015-10-07 | 江苏中圣压力容器装备制造有限公司 | Method and device for manufacturing surface porous heat transfer tubes |
| CN106424666A (en) * | 2016-11-10 | 2017-02-22 | 浙江双飞无油轴承股份有限公司 | Centrifugal casting, rapid cooling and quenching process for steel-based bimetal |
| CN106424628A (en) * | 2016-11-23 | 2017-02-22 | 浙江双飞无油轴承股份有限公司 | Automatic continuous centrifugal casting production process |
| CN106424628B (en) * | 2016-11-23 | 2019-04-30 | 浙江双飞无油轴承股份有限公司 | Centrifugal casting automatic continuous production technique |
| CN108612919A (en) * | 2018-04-27 | 2018-10-02 | 胡建芳 | A kind of phase shell type specialty metal seamless pipe and preparation method thereof |
| CN108612919B (en) * | 2018-04-27 | 2020-04-14 | 扬州巨业耐磨复合材料有限责任公司 | Phase-sleeve type special metal seamless pipe and preparation method thereof |
| CN110846655A (en) * | 2019-11-27 | 2020-02-28 | 武汉古锐恩环保科技有限公司 | Production process of high-frequency cladding anti-corrosion wear-resistant pipe |
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Application publication date: 20121024 |