CN103194748A - Method for preparing WC cemented carbide anti-wear layer on petroleum drilling tool stabilizer through laser cladding - Google Patents
Method for preparing WC cemented carbide anti-wear layer on petroleum drilling tool stabilizer through laser cladding Download PDFInfo
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- CN103194748A CN103194748A CN2012100042503A CN201210004250A CN103194748A CN 103194748 A CN103194748 A CN 103194748A CN 2012100042503 A CN2012100042503 A CN 2012100042503A CN 201210004250 A CN201210004250 A CN 201210004250A CN 103194748 A CN103194748 A CN 103194748A
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Abstract
The invention relates to a method for preparing a WC cemented carbide anti-wear layer on a petroleum drilling tool stabilizer through laser cladding. The method is characterized in that a high-power laser is utilized to clad a good-toughness priming transition layer forming a metallurgic combination with a matrix on a shell surface through rapid laser scanning, and spherical WC and Ni-Cr-B-Si mixed alloy powder having good wear and corrosion resistances is prepared on the priming alloy surface through laser cladding. The method which allows the WC cemented carbide coat forming the metallurgic combination with the matrix to be prepared substantially improves the wear, corrosion and hot tearing resistances of the surface of the matrix; and the above laser cladding technology has the characteristics of no pollution to the environment, no radiation, low noise, high productivity, low energy consumption, small cladding layer working allowance, high yield, low comprehensive cost and the like.
Description
Technical field
The present invention relates to a kind of repairing reproduction method of oil drilling tools, particularly relate to and a kind ofly prepare the method for WC hard alloy abrasion-resistant layer at oil drilling tools stabilizer laser melting coating, belong to the laser melting and coating technique field.
Background technology
Drilling tool stabilizer is that oil drilling tool prevents the important tool that hole deviation changes, be equipped with big rigidity drill collar and applying under the service condition of big the pressure of the drill, the reasonably stability device will make rate of deviation and rate of direction change less, improve wellbore quality and drilling speed, reduce drilling cost.Because external diameter and the borehole gap of stabilizer are very little, the rotation drilling tool makes its seamed edge easy to wear, can make the external diameter wear out failure very soon at hard formation especially, therefore coat high-abrasive material at the stabilizer external diameter, wearing layer requires to have following basic function: one, the casing wear state is down to minimum level; Two, the wearing and tearing of wearing layer have replaced the wearing and tearing of tool joint and sleeve pipe; Three, durable wear-life, significantly reduced and make a trip, repair again weldering and come and go the time of transportation and cost.
Following four kinds commonly used of its means of the coating of stabilizer wearing layer: one, surperficial tungsten carbide button post; Two, alloy and polycrystal composite are inlayed in the surface; Three, surface low-temperature soldering hard alloy blocks; Four, surface overlaying wear resistance electrode.The build-up wear-resistant layer process is because the metallographic structure of overlay cladding is thick, and pore, crackle be thick, it is more to be mingled with, during built-up welding the hard phase decomposition serious, influenced the wearing layer use, problem in use often appears peeling off, wear resistance is not enough, the life-span is low etc.The hard phase decomposition seriously is insoluble problem during built-up welding.Inlay with the soldering hard alloy process since stabilizer to produce frictional force in when work bigger, the WC Wimet is in high fragility and inlay low bonding strength with soldering and caused and peeling phenomenon occurs in using, and the overlay cladding wear resistance is descended, drilling tool reduces work-ing life.
Therefore, select suitable oil drilling tools stabilizer laser melting coating to prepare the processing method of WC hard alloy abrasion-resistant layer, making drilling tool stabilizer surface WC hard alloy abrasion-resistant layer and substrate combinating strength height, wear resisting property thickness good, alloy coat even, is the current problem that needs to be resolved hurrily.
Laser melting and coating technique has obtained rapid popularization and widespread use in recent years as a kind of advanced person's re-manufacturing technology.
At present, a lot of about utilizing laser melting and coating process to prepare the patent of equipment unit coated with wear-resisting alloy: for example.
Publication number is " laser smelting coating after metal surface plasma spray prepares the method for ceramic coating " that the Chinese invention patent application of CN1202534 provides, this method is to prepare ceramic coating in the metallic surface with plasma spraying method earlier, then in laser radiation, ceramic powder is sprayed to coatingsurface, ceramic coating is carried out the secondary cladding handle.
Publication number is " preparation method of laser fusion covered nickel base nanometer WC/Co precoated layer " that the Chinese invention patent application of CN1786272 provides, 1. this preparation method comprise the following steps: by the shellac of every grammes per square metre and dehydrated alcohol weighing shellac and the dehydrated alcohol of 10～20 grammes per square metres, then will described shellac adds in the dehydrated alcohol to make binding agent; 2. as required in the ratio of the binding agent of every gram nickel base nanometer WC/Co powder and 0.1 milliliter～0.25 milliliter, weighing nickel base nanometer WC/Co powder and described binding agent also mix, and stir and make pre-gluing; 3. above-mentioned pre-gluing is coated in the workpiece surface for the treatment of Laser Cladding Treatment equably, makes precoated layer; 4. oven dry.Adopt homemade adhesive preparation nickel base nanometer WC/Co precoated layer, and then adopt laser melting and coating process, prepared that the surface is more smooth, finer and closely woven, basically eliminate crackle and hole and be the nickel base nanometer WC/Co compound coating of metallurgical binding with matrix.
Publication number is " the railroad switch sliding bed surface abrasion resistance non-corrosive alloy coating laser melting and coating process " that the Chinese invention patent application of CN101338425 provides, comprise following technological process: at first slide plate surface preparation, namely at room temperature degreasing and rust removal is carried out on the slide plate surface, and clean with alcohol wash; Be presetting of powdered alloy then, namely the iron-based for the treatment of cladding, Ni-based or Co-based alloy powder are preset in slide plate surface after the above-mentioned processing, and adjust prealloyed powder with the floating rule that has guide rail, make it to be evenly distributed on slide plate surface and have suitable thickness, to satisfy the requirement of coat-thickness after the cladding; Be that slide plate is strengthened in the light cladding at last, select gas CO for use
2
Laser apparatus, worktable are numerically-controlled machine, carry out laser melting coating on the slide plate surface and strengthen.
Though the technique scheme that prior art provides can be utilized laser melting and coating process that the equipment component parts are carried out wear-resistant coating and handle, and by preparing the problem that suitable cladding material has overcome crackle, pore and the microtexture ununiformity of the existence of laser crucible zone, obtain certain technique effect.But to other specific equipment unit, the such special construction of image-stone oil drilling tool stabilizer for example, existing laser melting and coating process obviously can not adapt to.
Retrieve verification through the applicant: adopt laser melting and coating process to finish oil drilling tools stabilizer surface abrasion resistance alloy coat, domestic beyond example is not still seen relevant report abroad yet.Therefore, seek out suitable employing laser melting coating and finish the processing method of oil drilling tools stabilizer surface abrasion resistance alloy coat, still need the those skilled in the art to utilize known laser melting and coating technique, prepare this problem at specific oil drilling tools stabilizer surface abrasion resistance alloy coat and further make creationary research work, in order to can provide the method that gratifying laser melting coating prepares oil drilling tools stabilizer surface abrasion resistance alloy coat.
Summary of the invention
Purpose of the present invention just is to solve the problems referred to above that prior art exists, and a kind of high power CO is provided
2
The laser apparatus cladding prepares the method for WC hard alloy abrasion-resistant layer at piercing drill oil drilling tools stabilizer laser melting coating.This method can prepare the WC hard alloy coating that forms metallurgical binding with matrix, thereby characteristic is split in wear-resisting, the anti-corrosion and heat resistanceheat resistant that significantly improves substrate material surface.
The technical scheme that the present invention provides is: thisly prepare the method for WC hard alloy abrasion-resistant layer at oil drilling tools stabilizer laser melting coating, be characterized in comprising following process.
1, surface of shell pre-treatment.
At room temperature adopt dehydrated alcohol that working position is carried out oil removal treatment.
2, the adjusting of the selection of powdered alloy and automatic powder feeding device.
Select for use good toughness intensity high and with the good IN625 Co-based alloy powder of the metallurgical consistency of matrix as prime coat, mainly contain Fe, C, Si, Cr, Ni, Mo, Nb in its Chemical Composition; Its Chemical Composition is by weight percentage: C:0.03%, Cr:21.5%, Fe:1.4%, Mo:9%, Si:0.4%, Nb:3.8%, surplus is Ni.
Select the wear resistance height for use, the spherical WC of high temperature resistance and Ni-Cr-B-Si self-fluxing alloy hybrid alloys powder are as working lining, WC weight percentage 〉=60%, Ni-Cr-B-Si self-fluxing alloy hybrid alloys powder weight percentage ratio≤40%, its Chemical Composition is by weight percentage: C:0.32%, Cr:3%, Fe:3%, Si:3.7%, surplus is Ni.
Regulate powder conveyer, the powdered alloy that the automatic powder feeding head is come out just in time drops in the laser molten pool, regulates powder sending quantity, makes the thickness of alloy powder coating reach 0.5-1.2mm.
3, superpower laser cladding bottoming alloy coat.
Select high power CO for use
2
Laser apparatus is worktable with the numerically-controlled machine, chooses best zlasing mode with synthetic glass burned spot method, utilizes high power CO then
2
Laser suite of equipment cladding bottoming alloy; Concrete processing parameter is as follows.
Condensing lens f=300～400.
Cladding power P=3000～5000W.
Spot diameter D=2--3mm.
Cladding scan velocity V=600～1200mm/min.
Overlapping rate 40～60%.
4, the spherical WC of superpower laser cladding and Ni-Cr-B-Si hybrid alloys powder.
Can take two kinds of processing modes.
1) arrowband cladding processing.
Take automatic powder feeding system feeding powdered alloy, at the spherical WC of nickel-base alloy surface cladding and Ni-Cr-B-Si hybrid alloys powder.
Cladding power P=1500～2500W.
Spot diameter D=1.2～3mm.
Cladding scan velocity V=150～250m/min.
Overlapping rate 40～60%.
2) broadband cladding processing.
Take automatic powder feeding system feeding powdered alloy, at the spherical WC of nickel-base alloy surface cladding and Ni-Cr-B-Si hybrid alloys powder.
Cladding power P=5000～7000W.
The long X of spot size is wide=10X1mm.
Cladding scan velocity V=300～500m/min.
Overlapping rate 40～60%.
5, flaw detection after the cladding.
Require working position not have defectives such as naked eyes visible crack, pore, surfacing.
Principle of the present invention is: in high-power laser beam irradiation workpiece surface, adopt the automatic powder feeding device to send into powdered alloy to laser molten pool synchronously, powdered alloy takes place to melt fast and solidify in the molten bath, form the wear-resisting erosion resistance cladding layer of even compact, cladding layer and matrix form firm metallurgical binding.Cladding layer thickness is at 1.2-3mm, and hardness, thickness evenly distribute.
Laser type of the present invention is high power CO
2
Gas laser, its maximum power is 10000W, 10.6 microns of wavelength can realize that the arrowband scans and the broadband rectangular scanning is carried out cladding.
The present invention selects for use with the good self-fusible alloy powder of nickel-base of 17-4PH associativity as prime coat.This is because this self-fusible alloy powder of nickel-base has good toughness, high intensity; Can suppress like this in the laser cladding process because the difference between base material and the hot rerum natura of cladding material causes the structural stress that produces.In use can suppress crackle in addition and expand to matrix, prolong housing work-ing life.Choose and adopt spherical WC as the wear-resistant phase of hard, adopt the high Ni-Cr-B-Si powdered alloy of good toughness intensity as bonding phase, reduced crackle formation, because the cobalt among the spherical sintered WC has good wetting ability to WC, thereby make in the coating bonding mutually and hard better combination mutually, and then improved abrasion property, bending strength and impelling strength.Greatly improved the housing life cycle.
The present invention by high with good toughness intensity and with the good Co-based alloy powder of the metallurgical consistency of matrix as prime coat, appropriate design is also optimized processing parameter, carry out the quick cladding of laser, form firm metallurgical binding with base material, realize and the good toughness transition of body material; Choose then and adopt spherical WC as wear-resistant phase, greatly improved the surface of shell wear resistance, adopt the high Ni-Cr-B-Si powdered alloy of good toughness intensity as bonding phase, reduced crackle formation, form the good compound coating of having strong resistance to heat and hard wearing of even compact.
Compared with prior art, the invention has the beneficial effects as follows.
1, the cladding alloy coating is even, fine and close, coating has good wear-resisting erosion resistance performance, adopt spherical WC as wear-resistant phase, greatly improved the surface of shell wear resistance, adopt the high Ni-Cr-B-Si powdered alloy of good toughness intensity as bonding phase, reduce crackle formation, adopted the oil drilling tools stabilizer of the technology of the present invention manufacturing to significantly improve wear-resisting erosion resistance performance and work-ing life.
2, adopt the gradient cladding mode to process, select for use good toughness intensity high and with the good Co-based alloy powder of the metallurgical consistency of matrix as prime coat, select for use the high WC cemented carbide powder of wear resistance as working lining, under the situation that satisfies the working lining characteristic, guaranteed working lining and base material good binding intensity, and can in use suppress crackle and expand to matrix.
Embodiment
Embodiment 1.
Of the present inventionly prepare wear-resisting compound coating technology in the quick cladding of oil drilling tools stabilizer surface laser, comprise following process.
1. early stage, machine added.
Need are carried out the laser melting coating position add to 182mm by the 190mm machine.
2. surface preparation.
At room temperature adopt dehydrated alcohol that working position is carried out oil removal treatment.
3. the adjusting of the selection of powdered alloy and automatic powder feeding device.
Select for use good toughness intensity high and with the good IN625 powdered alloy of the metallurgical consistency of matrix as prime coat, select the wear resistance height for use, the spherical WC of high temperature resistance and Ni-Cr-B-Si self-fluxing alloy hybrid alloys powder with as working lining, regulate powder conveyer, the powdered alloy that the automatic powder feeding head is come out just in time drops in the laser molten pool, regulate powder sending quantity, make the thickness in monolayer of alloy powder coating reach 0.8mm.
4. superpower laser cladding bottoming alloy.
Select high power CO for use
2
Laser apparatus is worktable with the numerically-controlled machine, chooses best zlasing mode with synthetic glass burned spot method, utilizes high power CO then
2
Laser suite of equipment cladding bottoming alloy; Concrete processing parameter is as follows.
Condensing lens f=400.
Cladding power P=3000W.
Spot diameter D=3mm.
Cladding scan velocity V=600mm/min.
Overlapping rate 40%.
5. the spherical WC of superpower laser cladding and Ni-Cr-B-Si hybrid alloys powder.
Take arrowband cladding processing, with gravity automatic powder feeding system feeding powdered alloy, at the spherical WC of nickel-base alloy surface cladding and Ni-Cr-B-Si hybrid alloys powder.WC weight percentage 60%, Ni-Cr-B-Si self-fluxing alloy hybrid alloys powder weight percentage ratio 40%, its Chemical Composition is by weight percentage: C:0.32%, Cr:3%, Fe:3%, Si:3.7%, surplus is Ni.
Cladding power P=2500W.
Spot diameter D=3mm.
Cladding scan velocity V=200m/min.
Overlapping rate 50%.
6. flaw detection after the cladding.
Require working position not have defectives such as naked eyes visible crack, pore, surfacing.
Embodiment 2.
Of the present inventionly prepare wear-resisting compound coating technology in the quick cladding of oil drilling tools stabilizer surface laser, comprise following process.
1. early stage, machine added.
Need are carried out the laser melting coating position add to 184mm by the 190mm machine.
2. surface preparation.
At room temperature adopt dehydrated alcohol that working position is carried out oil removal treatment.
3. the adjusting of the selection of powdered alloy and automatic powder feeding device.
Select for use good toughness intensity high and with the good Co-based alloy powder of the metallurgical consistency of matrix as prime coat, select the wear resistance height for use, the spherical WC of high temperature resistance and Ni-Cr-B-Si hybrid alloys powder with as working lining, regulate powder conveyer, the powdered alloy that the automatic powder feeding head is come out just in time drops in the laser molten pool, regulate powder sending quantity, make the thickness of alloy powder coating reach 1.2mm.
4. superpower laser cladding bottoming alloy.
Select high power CO for use
2
Laser apparatus is worktable with the numerically-controlled machine, chooses best zlasing mode with synthetic glass burned spot method, utilizes high power CO then
2
Laser suite of equipment cladding bottoming alloy; Concrete processing parameter is as follows.
Condensing lens f=400.
Cladding power P=4000W.
Spot diameter D=3mm.
Cladding scan velocity V=800mm/min.
Overlapping rate 40%.
5. the spherical WC of superpower laser cladding and Ni-Cr-B-Si hybrid alloys powder.
Take broadband cladding processing, with gravity automatic powder feeding system feeding powdered alloy, at the spherical WC of nickel-base alloy surface cladding and Ni-Cr-B-Si hybrid alloys powder.WC weight percentage 65%, Ni-Cr-B-Si self-fluxing alloy hybrid alloys powder weight percentage ratio 35%, its Chemical Composition is by weight percentage: C:0.32%, Cr:3%, Fe:3%, Si:3.7%, surplus is Ni.
Cladding power P=6000W.
The long X of spot size is wide=10X1mm.
Cladding scan velocity V=500m/min.
Overlapping rate 50%.
6. flaw detection after the cladding.
Require working position not have defectives such as naked eyes visible crack, pore, surfacing.
Embodiment 3.
Of the present inventionly prepare wear-resisting compound coating technology in the quick cladding of oil drilling tools stabilizer surface laser, comprise following process.
1. early stage, machine added.
Need are carried out the laser melting coating position add to 180mm by the 190mm machine.
2. surface preparation.
At room temperature adopt dehydrated alcohol that working position is carried out oil removal treatment.
3. the adjusting of the selection of powdered alloy and automatic powder feeding device.
Select for use good toughness intensity high and with the good Co-based alloy powder of the metallurgical consistency of matrix as prime coat, select the wear resistance height for use, the spherical WC of high temperature resistance and Ni-Cr-B-Si hybrid alloys powder with as working lining, regulate powder conveyer, the powdered alloy that the automatic powder feeding head is come out just in time drops in the laser molten pool, regulate powder sending quantity, make the thickness of alloy powder coating reach 1.0mm.
4. superpower laser cladding bottoming alloy.
Select high power CO for use
2
Laser apparatus is worktable with the numerically-controlled machine, chooses best zlasing mode with synthetic glass burned spot method, utilizes high power CO then
2
Laser suite of equipment cladding bottoming alloy; Concrete processing parameter is as follows.
Condensing lens f=400.
Cladding power P=4000W.
Spot diameter D=3mm.
Cladding scan velocity V=800mm/min.
Overlapping rate 40%.
5. the spherical WC of superpower laser cladding and Ni-Cr-B-Si hybrid alloys powder.
Take broadband cladding processing, with gravity automatic powder feeding system feeding powdered alloy, at the spherical WC of nickel-base alloy surface cladding and Ni-Cr-B-Si hybrid alloys powder.WC weight percentage 70%, Ni-Cr-B-Si self-fluxing alloy hybrid alloys powder weight percentage ratio 30%, its Chemical Composition is by weight percentage: C:0.32%, Cr:3%, Fe:3%, Si:3.7%, surplus is Ni.
Cladding power P=6000W.
The long X of spot size is wide=10X1mm.
Cladding scan velocity V=500m/min.
Overlapping rate 50%.
6. flaw detection after the cladding.
Require working position not have defectives such as naked eyes visible crack, pore, surfacing.
Claims (1)
1. one kind prepares the method for WC hard alloy abrasion-resistant layer at oil drilling tools stabilizer laser melting coating, it is characterized in that comprising following process:
(1) surface of shell pre-treatment
At room temperature adopt dehydrated alcohol that working position is carried out oil removal treatment;
(2) adjusting of the selection of powdered alloy and automatic powder feeding device
Select for use good toughness intensity high and with the good Co-based alloy powder powder of the metallurgical consistency of matrix as prime coat, its Chemical Composition is by weight percentage: C:0.03%, Cr:21.5%, Fe:1.4%, Mo:9%, Si:0.4%, Nb:3.8%, and surplus is Ni;
Select the wear resistance height for use, the spherical WC of high temperature resistance and Ni-Cr-B-Si self-fluxing alloy hybrid alloys powder powder are as working lining, WC weight percentage 〉=60%, Ni-Cr-B-Si self-fluxing alloy hybrid alloys powder weight percentage ratio≤40%, the Chemical Composition of Ni-Cr-B-Si self-fluxing alloy hybrid alloys powder is by weight percentage: C:0.32%, Cr:3%, Fe:3%, Si:3.7%, and surplus is Ni;
Regulate powder conveyer, the powdered alloy that the automatic powder feeding head is come out just in time drops in the laser molten pool, regulates powder sending quantity, makes the thickness of alloy powder coating reach 0.5-1.2mm;
(3) superpower laser cladding bottoming alloy coat
Select high power CO for use
2Laser apparatus is worktable with the numerically-controlled machine, chooses best zlasing mode with synthetic glass burned spot method, utilizes high power CO then
2Laser suite of equipment cladding bottoming alloy; Concrete processing parameter is as follows:
Condensing lens f=300～400
Cladding power P=3000～5000W
Spot diameter D=2--3mm
Cladding scan velocity V=600～1200mm/min
Overlapping rate 40～60%;
(4) the spherical WC of superpower laser cladding and Ni-Cr-B-Si hybrid alloys powder
Can take following two kinds of processing modes:
1) arrowband cladding processing
Take automatic powder feeding system feeding powdered alloy, at the spherical WC of nickel-base alloy surface cladding and Ni-Cr-B-Si hybrid alloys powder,
Cladding power P=1500～2500W
Spot diameter D=1.2～3mm
Cladding scan velocity V=150～250m/min
Overlapping rate 40～60%;
Or 2) broadband cladding processing
Take automatic powder feeding system feeding powdered alloy, at the spherical WC of nickel-base alloy surface cladding and Ni-Cr-B-Si hybrid alloys powder;
Cladding power P=5000～7000W
The long X of spot size is wide=10X1mm
Cladding scan velocity V=300～500m/min
Overlapping rate 40～60%;
(5) flaw detection after the cladding
Require working position not have defectives such as naked eyes visible crack, pore, surfacing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100042503A CN103194748A (en) | 2012-01-09 | 2012-01-09 | Method for preparing WC cemented carbide anti-wear layer on petroleum drilling tool stabilizer through laser cladding |
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| CN2012100042503A CN103194748A (en) | 2012-01-09 | 2012-01-09 | Method for preparing WC cemented carbide anti-wear layer on petroleum drilling tool stabilizer through laser cladding |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484852A (en) * | 2013-08-27 | 2014-01-01 | 武汉团结点金激光科技有限公司 | Method for preparing WC (Wolfram Carbide) cemented carbide wearing layer on surface of petroleum drilling tool stabilizer through laser cladding |
| CN103741137A (en) * | 2013-12-31 | 2014-04-23 | 武汉团结点金激光科技有限公司 | Laser surface cladding treatment technology for tooth surface of roller bit |
| CN103774135A (en) * | 2013-12-31 | 2014-05-07 | 武汉团结点金激光科技有限公司 | Process for manufacturing novel hearth roll collar with laser clad composite coating |
| CN103806869A (en) * | 2014-02-28 | 2014-05-21 | 成都大漠石油机械有限公司 | Inner-oil-tube cleaning tool |
| CN105463451A (en) * | 2015-11-30 | 2016-04-06 | 西安建筑科技大学 | Method for improving wear resistance and high-temperature resistance of stirring head for stirring and friction welding |
| CN106480446A (en) * | 2015-09-02 | 2017-03-08 | 沈阳大陆激光工程技术有限公司 | The method preparing wear-resisting heat resistanceheat resistant composite coating on coiler pinch-roll surface |
| CN107130238A (en) * | 2017-05-30 | 2017-09-05 | 中北大学 | A kind of method that laser melting coating repairs precise forging machine tup |
| CN108754492A (en) * | 2018-06-25 | 2018-11-06 | 阜南县奋进机械制造有限公司 | A kind of PDC steel body bits surface enhanced method |
| CN111155084A (en) * | 2020-01-21 | 2020-05-15 | 山东科技大学 | Method for plasma cladding composite tungsten carbide coating |
| CN111575705A (en) * | 2020-06-28 | 2020-08-25 | 内蒙古科技大学 | Preparation method of tungsten carbide reinforced nickel-based composite coating |
| CN112226760A (en) * | 2020-10-14 | 2021-01-15 | 西安特种设备检验检测院 | Preparation method of wear-resistant coating of traction sheave of high-speed elevator |
| CN112760638A (en) * | 2020-12-23 | 2021-05-07 | 熔创金属表面科技(常州)有限公司 | Laser cladding non-magnetic wear-resistant layer on surface of non-magnetic stainless steel and preparation method thereof |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484852A (en) * | 2013-08-27 | 2014-01-01 | 武汉团结点金激光科技有限公司 | Method for preparing WC (Wolfram Carbide) cemented carbide wearing layer on surface of petroleum drilling tool stabilizer through laser cladding |
| CN103741137A (en) * | 2013-12-31 | 2014-04-23 | 武汉团结点金激光科技有限公司 | Laser surface cladding treatment technology for tooth surface of roller bit |
| CN103774135A (en) * | 2013-12-31 | 2014-05-07 | 武汉团结点金激光科技有限公司 | Process for manufacturing novel hearth roll collar with laser clad composite coating |
| CN103806869A (en) * | 2014-02-28 | 2014-05-21 | 成都大漠石油机械有限公司 | Inner-oil-tube cleaning tool |
| CN106480446A (en) * | 2015-09-02 | 2017-03-08 | 沈阳大陆激光工程技术有限公司 | The method preparing wear-resisting heat resistanceheat resistant composite coating on coiler pinch-roll surface |
| CN106480446B (en) * | 2015-09-02 | 2018-12-28 | 沈阳大陆激光工程技术有限公司 | In the method that coiler pinch-roll surface prepares wear-resisting heat resistanceheat resistant composite coating |
| CN105463451A (en) * | 2015-11-30 | 2016-04-06 | 西安建筑科技大学 | Method for improving wear resistance and high-temperature resistance of stirring head for stirring and friction welding |
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