CN102534343A - Wear-resistant material used in drilling application - Google Patents
Wear-resistant material used in drilling application Download PDFInfo
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- CN102534343A CN102534343A CN2012100580205A CN201210058020A CN102534343A CN 102534343 A CN102534343 A CN 102534343A CN 2012100580205 A CN2012100580205 A CN 2012100580205A CN 201210058020 A CN201210058020 A CN 201210058020A CN 102534343 A CN102534343 A CN 102534343A
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- Coating By Spraying Or Casting (AREA)
Abstract
The invention relates to a hard-face metal composition with strong wear resistance and fracture resistance, in particular to a wear-resistant material used in drilling application. The wear-resistant material contains tungsten carbide and a nickel matrix binder, wherein the content of the tungsten carbide in the hard-face metal composition exceeds 50% by weight, and at least 60% by volume of tungsten carbide particles are spherical; and the binder consists of (in weight percent) at least 80% of nickel, 4.5-11% of fusing agent, 3-7% of copper and 1-5% of Cr or Mo or mixture of the Cr and the Mo, wherein the fusing agent is selected from boron, silicon and phosphorus.
Description
Technical field
Drilling rigs field that the present invention relates to hole and the wear-resisting valve of all kinds of hard sealings field relate in particular to the high-abrasive material that improves drilling outfit and extraordinary hard seal valve class wearing quality.
Technical background
Oil well and gasser are that bur passes through drilling method formation, and this method is used and is connected the terminal drill bit of drill string.When contacting with the stratum, drill bit rotary drill ground produces well.Rotary driving machine tool device drives the drill bit rotation, and this drive unit is positioned on the surface, makes the drill bit rotation thereby drill string is rotated.The motor that is arranged between drill string alternately is converted into the power that drill bit rotates with the hydraulic pressure of wellbore fluid, reduces the rotation needs of whole drill string.
In drilling operation, wellbore fluid is called drilling mud, can rise to the surface through drill string and well bore.Drilling mud is used for removing the rock stratum smear metal of drilling process, reduces the generation that drill bit stops up, and can also be used for cools reamer head and contact the heat that produces with the rock stratum.
A base type that is generally used for the drill bit of well bore is rotation tricone bit and milled tooth bit.These drill bits have one or more gear wheels that comprise cutting teeth usually.Gear wheel is installed on the frame of the bit, and weight is applied to drill bit, and drill body and gear wheel rotation cause cutting teeth bump rock stratum, make the rock stratum produce well bore.
Another base type of normally used drill bit is fixing wing drill bit, also is called as the drag diamond bit.Fixedly the wing drill bit uses glomerocryst diamond composite sheet, and glomerocryst diamond composite sheet is bonded on the frame of the bit.When fixedly the wing drill bit rotated, strength was applied to glomerocryst diamond composite sheet, and glomerocryst diamond composite sheet contacts with the rock stratum, and fragment is resolved in the rock stratum under cutting action, formed well bore.
Tricone bit and diamond bit, and other instrument relevant with drilling well, for example the surface of cork drill, V-cutting knife and stabilizer is worn in drilling process easily.For example the side surface of frame of the bit contacts with the rock stratum of drilling well hole wall, and the rock stratum at the bottom of the surf zone between the diamond composite sheet of diamond bit and the hole contacts.These surfaces need a hardstanding, are used to resist wearing and tearing so that keep the profile of drill bit, and this hardstanding is called as the hard facing alloy material.
Conventional hard facing alloy material comprises carbide.Carbide material is that drill bit provides wear-resistant and anti-fracture property.The conventional hard facing alloy material that is used to form hardstanding can also comprise one or more binder alloy, so that the ideal physical attribute is provided.Conventional alloy provides good hot-cast performance, comprises flux elements Si and B, contains or do not contain Cr and Fe.
Adopt conventional heat spraying method that hardstanding is sprayed on the bit face, for example laser melting coating, plasma spray or flame spraying.Come between carbide and the binder alloy that hard facing alloy material and wall friction produce high heat when the thermal response of thermal spray process and drilling well; Cause wolfram varbide and the binder alloy matrix uneven distribution of internal stress in the hardstanding microstructure, this can cause hardstanding too early wearing and tearing, peel off, rupture and final inefficacy.
In addition, in the process of stiff dough Metal Material Welding on base plate, because matrix material bad flowability under liquid state, reduce the quality of microstructure, the uniform thickness that is difficult to control the hardstanding coating keeps the profile that designs, and this is determining the work-ing life of drill bit.
It is desirable to, a kind of stiff dough metallic substance of wear-resistant and anti-fracture is provided and uses the method for this material, and the application of this material on drilling outfit.The use of this material can be avoided in use owing to the thermal stresses of material and the brill mill that contacts of hard formation are lost boring effectiveness.The continuity and the accuracy of improvement tool profile are provided simultaneously.
Summary of the invention
The invention provides a kind of stiff dough metal composites of strong wear-resisting and anti-fracture; Said composition comprises wolfram varbide and a kind of matrix material; Wherein the content of wolfram varbide in the stiff dough metal composites surpasses 50 weight %, and the tungsten carbide particle of at least 60% volume ratio is spherical; Said matrix material (by weight percentage) is by at least 80% nickel, 4.5-11% fusing assistant, and 3-7% copper and 1-5%Cr or Mo or its mixture are formed; Said fusing assistant is selected from boron, silicon and phosphorus.
It is mobile that stiff dough metal composites of the present invention has good deposition, wherein in the stiff dough metal composites content of wolfram varbide be solubility promoter content in the sticker 8-13 doubly.Be included in that the element as fusing assistant is Si, B and P in the nickelalloy.In the present invention, P and Si use and are the flowability of main fusing assistant with stiff dough metal in the increase use.The content of Si or P is greater than the content of B in sticker.
It is mobile that stiff dough metal composites of the present invention has good deposition, wherein in the stiff dough metal composites content of wolfram varbide be solubility promoter content in the sticker 8-13 doubly, and the wear rate of this stiff dough metal is less than 1.1mm
3/ 1000 change (ASTM G65).
The present invention also provides a kind of drill bit, and this drill bit has the above-mentioned stiff dough metal composites that one deck at least is bonded in the wear-resisting and anti-fracture on the frame of the bit.Through heat spraying method, for example laser melting coating, plasma spray or flame spraying are sprayed on this stiff dough metal composites on the metallic matrix of instrument.Said instrument is tricone bit, diamond bit, milled tooth bit, cork drill, underground hole enlarger, stabilizer and centralizer etc.
The present invention also provide in addition a kind of with wear-resisting and anti-fracture material be sprayed on the instrument with the abrasion-proof hard seal goods on method, comprise step: make the above-mentioned stiff dough metal composites of forming by wolfram varbide and binder material; Through heat spraying method the stiff dough metal composites is sprayed on some part of instrument.
Description of drawings
Fig. 1 is the graphical diagram that drives well system under the open well.
Fig. 2 is the skeleton view of diamond bit.
Fig. 3 is the skeleton view of tricone bit.
Fig. 4 is the skeleton view of stabilizer.
Fig. 5 is the microstructure image of present composition A.
Fig. 6 is the microstructure image of present composition B.
Fig. 7 provides the microstructure image of prior art compositions E.
Fig. 8 provides the microstructure image of prior art compositions F.
Embodiment
Fig. 1 demonstration is suspended on the drill string 2 on the derrick 4, is used at the underground well bore 6 that digs with exploitation and recovery mineral, especially oil.A bottom-hole assembly 8 (BHA) is positioned at the bottom of drill string 2.In inclination drilling, BHA8 has the down-hole and drives well system 9 and comprise drill bit 10.Along with drill bit 10 rotations, it cuts the stratum, is being with drill string to advance, and forms well bore 6.In the non-directional drilling well, BHA8 does not comprise that the down-hole drives well system 9, can be made up of a drill bit, one or more jumping through rings and other optional instrument that improves stability.
Fig. 2 shows the diamond bit of frame of the bit 100, and frame of the bit is processed by Machine Steel.Frame of the bit 100 has one towards leading face 105, and a plurality of projections are housed above, the wing 102 that radial spacing is arranged.Each wing 102 has a plurality of cutting elements 40, that is: glomerocryst diamond composite sheet.Path 10 4 is arranged between every pair of wing that closes on 102, and in use, path 10 4 can be used as the passage of drilling liquid flow warp, and through a series of paths (not shown) of frame of the bit 100 inside, each passage terminates in nozzle 130.Supplying drilling fluid can in use clean and cool off cutting element 40, provides a kind of the circulation to get rid of the method that the rock stratum smear metal goes out well bore simultaneously.
At frame of the bit 100, connect wing 102 and on leading face 105, form guarantor footpath contact surface 140, it can guarantee the external diameter of drill bit 100.Protect footpath contact surface 140 and comprise the anti abrasive plug-in unit 150 of compressing into guarantor footpath contact surface 140, can also use thermospray stiff dough metal 160 to coat wear-resistant plug-in unit 150.The hole wall of protecting footpath contact surface 140 and well bore contacts the wearing and tearing that can cause thermospray stiff dough metal 160.
Cutting element outstanding on the wing 102 is wrapped in the thermospray stiff dough metal 180, partly or entirely can being capped of wing 102.The zone of the thermospray stiff dough metal 180 between cutting element 40 is called as sideband.Thermospray stiff dough metal 180 near cutting element 40 contacts the wearing and tearing that can cause thermospray stiff dough metal 180 with the stratum that forms well bore.
The design of frame of the bit 100 comprises a thread handle 170, and drill bit is connected with drill string, drives the drill bit rotation to drive rotating shaft 190.
In Fig. 3, tricone bit 200 comprises matrix 210 (its part does not show).The matrix 210 of a common tricone bit comprises three similar shanks 220 (having only a quilt to show fully), comprises outside surface 260 in each leg portion 220.In the bottom near shank 220, outside surface comprises a zone 280.Outside surface 260 and/or zone 280 are covered by the thermospray hard material, can be called the stiff dough metal.Rotary cutter 240 is installed on each shank 220.Being bonded on the rotary cutter 240 is cutting cutting knife 80, and it gets into ground and carries out drilling well, causes the rotation of rotary cutter 240.The exposure that is enclosed in the rotary cutter 240 of cutting cutting knife 80 is used the covering of thermospray hard material, is called the stiff dough metal.The stratum of stiff dough metal and well bore contacts the wearing and tearing that can cause the stiff dough metal.
Can be called as rotary cutter near the part of the rotary cutter 240 of shank 220 and protect footpath contact surface 250, also can spray the stiff dough metal.The guarantor footpath contact surface 250 of rotary cutter is the cone surface at rotary cutter 240 roots normally, when drill bit uses, contacts the stiff dough galling that can cause being positioned on 250 at the guarantor's footpath contact surface 250 of rotary cutter 240 and the sidewall of well bore.
Though Fig. 3 and be about having the tricone bit of cutting element in this discussion, the present invention is not limited to this type, comprises other drill bit design, for example has from the tooth of circular cone upper process rather than the milled tooth bit of cutting knife.Outer edge region that the stiff dough metal level can be coated on the outside surface, shank is beneath and the sideband between the tooth, and on the surface of tooth itself.
In another embodiment, wing 340 has the height of suitable homogeneous along its length, and end also reduces.In another embodiment, wing 340 is not a volution along the length linear arrangement of body 360.In another embodiment, there is not the bridge area between the wing 340.Though shown in Figure 4 is stabilizer, the present invention is not limited thereto, comprises other drilling outfit, for example cork drill, underground hole enlarger, stabilizer etc.
Embodiments of the invention comprise the wear-resistant and anti-surface of rupturing using of material and forming of transformation.Through any hard material application process wear-resisting and anti-fracture material is sprayed on the surface of drill bit, for example heat spraying method.The present invention can comprise the wear-resisting and anti-fracture of one layer or more material, the coated wear-resisting and break resistance that improvement is provided from the teeth outwards of this material.Material of the present invention can avoid in welding and the thermospray thermal destruction often being arranged, and has also avoided inconsistent on the instrument design outline.
Generally speaking, the invention provides a kind of material, when it is used on the surface of drilling outfit, compare, have better wear-resisting and break resistance with the hard facing alloy of routine.Therefore, wear-resisting and anti-fracture material of the present invention and compsn can be used in and overcome fracture and the wear problems that conventional hard facing alloy discussed above occurs.
The substruction of drill bit, no matter be tricone bit or diamond bit, perhaps other drilling outfit is all known, and can not form concrete part of the present invention.Embodiments of the invention relate to and have the surface and the method that forms this material layer that high abrasion and anti-fracture composition material are coated in drill bit.Embodiments of the invention also comprise this high abrasion and resist fracture composition material surface applied on other drilling outfit outside the drill bit, for example are used to expand the cork drill of well bore diameter.
Generally speaking, under strong erosion and other high abrasive conditions, when the part of drill bit contacted with well bore, it was considerable with resisting the fracture material for effective use of drill bit that high abrasion is provided.The useful life of drill bit increases and improves with break resistance along with wear-resisting.Because wearing and tearing take place, when the drilling depth rate reduced to unacceptable level, drill bit needed replacement.Therefore, it is desirable to reduce wear so that each drill bit can reach the highest drilled footage.This not only reduces direct cost, also can reduce well post frequency and the time up and down when replacing old drill bit with green bit.
Because protect footpath surface in contact wearing and tearing, the diameter in the hole of bit drills can diminish, and causes drilling problem sometimes or need expand the hole with another drill bit.Bit face is wear-resisting to be helped prolonging the life-span of protecting the footpath with raising break resistance, increases the drill footage of drill bit before replacement, improves the penetration coefficient of this drill bit.This can reduce the drilling well cost.
Can wear-resisting and anti-fracture material of the present invention be sprayed on the bit face through appropriate method.Wear-resisting and anti-fracture material available heat spraying method, for example laser melting coating, plasma spray, flame spraying or oxyacetylene welding method.
It is 0.1-10mm that the high abrasion of embodiment of the invention preparation has thickness with the drilling outfit of anti-fracture, optional 1-8mm, the upper layer of optional 2-5mm.According to using of selection, bit matrix and the drill bit of composition material, the control surface layer thickness changes in this scope accurately.
Wolfram varbide is with casting WC and/or W
2The form of C provides hardness and toughness can for wear-resisting and anti-fracture composition material.Can use three kinds of different wolfram varbides: the WC/W of ball cast
2C, the WC/W of casting mold and crushing
2The WC of C and macrocrystal.Aspect hardness property, the WC/W of ball cast
2The hardness of C is greater than the WC/W of casting mold and crushing
2C, the WC/W of casting mold and crushing
2The hardness of C is greater than the WC of macrocrystal.Aspect the toughness attribute, the WC/W of ball cast
2The toughness of C is greater than the WC of macrocrystal, and the toughness of the WC of macrocrystal is greater than the WC/W of casting mold and crushing
2C.WC and W
2The hot attribute of C is quite approaching.Therefore, it is desirable to, use the WC/W of ball cast
2C can make the hardness of wear-resisting and anti-fracture composition material and toughness rationalize.
According to embodiments of the invention, the WC/W of ball cast
2C accounts for total wolfram varbide at least 60% volume ratio.In another embodiment, the WC/W of ball cast
2C accounts for total wolfram varbide at least 70% volume ratio, and optional at least 80%.
Conventional stiff dough metal bonding agent material is normally by being selected from Co, Ni, Fe, Cr, B, Si and its alloy composition.In the present invention, the desirable attributes of discovery stiff dough metal bonding agent material is high anti-fracture property and obdurability.Stiff dough metal bonding material with obdurability has been proved to be in use and can have reduced fracture.Strong stiff dough metal wear-resisting and anti-fracture is the rational and balanced between wolfram varbide and the sticker, and maximum wear resisting property and reasonable flexible binder alloy can be provided.
The microhardness of various adhesive compounds and flowability are relatively listed in the table 1 in hard facing alloy.In table, except that nickel, the number of chemical element front is represented the weight percentage of this element in binding material composition, and the weight percentage of nickel is 100% to deduct the content of other element.The inventive method has been produced sample A and B.Sample A is by the WC/W of 65% weight ratio
2The adhesive composition of C and 35% weight ratio (Ni-3Cr-5.5Cu-1.5Mo-2P-2.5Si-1B) is formed, and comprises the spherical WC/W of 60% volume ratio
2C.Sample B is by the spherical WC/W of 55% weight ratio
2The cementing compositions of C and 45% weight ratio (Ni-3Cr-5.5Cu-1.5Mo-2P-2.5Si-1B) is formed.Sample C is a hard facing alloy of the prior art to F.Sample E is the commercially available hard facing alloy of a kind of Eutectic by name 8913 available from Eutectic company, has the polygonal WC/W of 55% weight ratio
2The cementing compositions of C and 45% weight ratio (Ni-7.5Cr-3Fe-3.5Si-1.5B-0.3C).Sample F is a kind of commercially available hard facing alloy available from Technogenia S.A., the spherical WC/W with 60% weight ratio
2The cementing compositions of C and 40% weight ratio (Ni-9.5Cr-3Fe-3Si-1.6B-0.6C).Sample A is with WC/W to the hard facing alloy of F
2C and sticker mixed powder are sprayed on the metallic matrix with flame spraying.
In spraying process, the deposition of stiff dough metal on metallic matrix depends on the flowability of stiff dough metallic substance.Good flowability can make the stiff dough metallic substance bonding arranged preferably and distribute more uniformly and successive is more used thickness.In spray application, observe the flowability (table 1) that assessment contains a plurality of stiff dough metal samples of multiple cementing compositions and wolfram varbide composition.
The hardness of wolfram varbide and sticker uses Vicker ' s hardness analyzer to measure with Buddha's warrior attendant awl pressure head load 300g in the stiff dough metal.WC/W
2The microhardness of C is at 2300-2600HV
3, the microhardness of sticker is listed in the table 1.
Table 1
Data in the table 1 show: the hard material C that the Ni-based hard metal sticker that only comprises boron and silicon is a prior art provides good flowability, is different from D-F.Sample D-F has high relatively sticker microhardness, shows that the adhesive composition that comprises iron and chromium has poor flowability, that is: lower toughness (the anti-fracture property of difference).At this, toughness and anti-breaking property can exchange each other.Though sample E comprises the sticker of higher amount and the fusing assistant of capacity, polygonal wolfram varbide is one of factor that reduces mobile and anti-breaking property.It is generally acknowledged that the principal element that reduces mobile and anti-breaking property is to belong to contain iron, carbon and chromium in the sticker.Because the low flow of sticker during spraying, hole and minute crack appear in the microstructure of sample D-F, and fissured quantity and its microhardness value are in direct ratio.What do not reckon with is that in sample A of the present invention and B, adding chromium does not have adverse effect for mobile and anti-breaking property.Therefore, the existence of the elemental copper of fusing assistant element phosphor and stable face-centered cubic crystal is to help forming stronger binder matrix, and then improves wear resistance.
Hard metal compsn A of the present invention and B have good flowability, and the weight percent of wolfram varbide is respectively 12 times and 9 times of weight percent of adhesive aid in the adhesive composition in the compsn.C compares with sample, and in the present invention, in spraying process, adhesive composition Ni-3Cr-5.5Cu-1.5Mo-2P-2.5Si-1B is more effective with the antagonism thermal rupture to the flowability of stiff dough metal.The concentration of wolfram varbide approximately is 8-13 times of fusing assistant concentration in the sticker.
A kind of strong sticker of anti-the fracture can reduce the fracture that produces because of thermal stresses in the stiff dough metal material layer with the compsn that good flowability can be provided.Suitably the combination of sticker composition and fusing assistant can improve the wear-resistant and break resistance of stiff dough metal, and reduces because the fracture that sticker toughness produces in spraying process and instrument use.Mobile raising also can make the hard gold layer than thick-layer be administered on the matrix of metal, thereby increases wear resistance, prolongs the life-span of equipment.
Because the toughness grow of stiff dough metal of the present invention, the spraying finished product of stiff dough metal can use air cooling can not cause fracture, owing to be not incubated the demand of slow cool down.Other commercially available stiff dough metal needs to use the insulation slow cool down so that the generation that prevents to rupture in process of cooling.There is the crack spraying finished product inside of some commercially available hard metals.
Assess stiff dough metal sample A of the present invention and B, and the wear resistance of the sample C-F of four kinds of commercially available standard hard materials.Tester A step according to ASTM is carried out this test.Abrasive, between the wheel of the hard material of the semicircular ottawa silica sand introducing of AFS 50/70 order test and rotation, the edge of wheel is a chlorobutyl rubber.The surface smoothness of hard material is 10-30 μ in AA.With sample defeating on runner with 130N (30 pounds).The rotating speed of wheel is arranged on 200 ± 10rpm, and the flow rate of quartz sand is 380-430g/min.Through the weight of sample before and after 6000 rotations of weighing, converting it into per 1000 then changes cubes micron kind VOLUME LOSS, measures the weight loss of coating.Detected result is listed in the table 2.
Table 2
The metallurgical polishing surface of using Murakamis reagent etching hard material is to appear WC/W
2The particle of C is shown as black phase on Photomicrograph.Be the microstructure of embodiment of the invention sample A and B shown in Fig. 5 and 6, be presented at whole hardstanding non-cracking, have imporosity and equally distributed relatively WC/W
2The particle of C.Fig. 5 is sample A of the present invention, shows the sphere and the irregular WC/W of about 60% volume
2C.Fig. 6 is sample B of the present invention, shows the spherical WC/W near 100%
2C.Fig. 7 and Fig. 8 represent the microstructure of prior art sample E and F respectively, and showing on whole hardstanding thickness has hole and microfracture.Microfracture and big hole are to represent through the arrow on the displaing micro picture.
Detected result shows in the table 2: have the sample of imporosity to compare with commercially available hard material, stiff dough metal sample A of the present invention and B have better wear resistance.The wear rate of the sample C of commercially available hard material is stiff dough metal sample A of the present invention and B 1.2 to 1.5 times.Have hole to compare with commercially available hard material with the sample of microfracture structure, sample D-F wear rate be stiff dough metal sample A of the present invention and B 1.5 to 3.6 times.The hard material that contains hole and microfracture structure, in wear process, hole and microfracture have aggravated material unaccounted-for (MUF), through micro rupture with fall fragment, cause scaling off and delamination.
The embodiment of the invention comprises the hard metal compsn, and its wear rate is 1.1mm
3/ 1000 commentaries on classics or lower, optional 0.93mm
3/ 1000 commentaries on classics or lower.
Be meant that at the term hard metal of this use, hard material, hard metal layer etc. the carbide lamella that comprises material, said material are sprayed on the matrix, for example on the frame of the bit.
Compare with the hardstanding that conventional hard material forms; The drill bit or other drilling outfits that comprise the hardstanding of stiff dough metal composites of the present invention and method formation have advantage; Because they can provide continuous stiff dough metallic substance microstructure; Reduce unwanted hot application effect, that is: the relevant material microstructure fracture that causes of thermal stresses.Stiff dough metal composites of the present invention can provide has strong wear resistance, the upper layer of thermal stresses and less material unaccounted-for (MUF) or surface characteristic.Stiff dough metal composites of the present invention can also the consistent hard metal layer thickness of preparation size.
Upper layer with the wear-resisting and anti-fracture of the present invention stiff dough metallic surface has the wear resistance and the resistance to fracture of improvement; Compare with the upper layer that conventional stiff dough metallic substance forms, therefore can prolong the drill bit that comprises stiff dough metal composites of the present invention or the work-ing life of other equipment.
Above content described in this specification sheets only is to illustrate what tooth-wheel bit was done.Person of ordinary skill in the field of the present invention can be applied to similar wear-resisting spare part and goods thereof with description stiff dough high-abrasive material; Only otherwise depart from structure of the present invention or surmount the defined scope of these claims, all should belong to protection scope of the present invention.
Claims (18)
1. one kind strong wear-resisting and anti-fracture stiff dough metal composites; It is characterized in that: said composition comprises wolfram varbide and a kind of matrix material; Wherein the content of wolfram varbide in the stiff dough metal composites surpasses 50 weight %, and the tungsten carbide particle of at least 60% volume ratio is spherical; Said matrix material (by weight percentage) is by at least 80% nickel, 4.5-11% fusing assistant, and 3-7% copper and 1-5%Cr or Mo or its mixture are formed; Said fusing assistant is selected from boron, silicon and phosphorus.
2. stiff dough metal composites as claimed in claim 1 is characterized in that: the content of wolfram varbide in the stiff dough metal composites surpasses 50-80 weight %.
3. stiff dough metal composites as claimed in claim 1 is characterized in that: this stiff dough metal composites has good flowability, and the content of wolfram varbide in the stiff dough metal composites is 8-13 times of fusing assistant content in the sticker.
4. stiff dough metal composites as claimed in claim 1 is characterized in that: the wear rate of said stiff dough metal composites is less than 1.1mm
3/ 1000 change.
5. stiff dough metal composites as claimed in claim 1 is characterized in that: utilize heat spraying method that said stiff dough metal composites is sprayed on the base metal.
6. stiff dough metal composites as claimed in claim 5 is characterized in that: wherein heat spraying method is laser melting coating, plasma spray or flame spraying.
7. stiff dough metal composites as claimed in claim 1; It is characterized in that: wherein adopt heat spraying method that said stiff dough metal composites is sprayed on boring tool, seals on the high abrasion goods firmly, wherein said instrument is tricone bit, diamond bit, milled tooth bit, cork drill, underground hole enlarger, bore very, stabilizer or centralizer and wear-resisting valve ball, valve seat, poppet shaft etc.
8. a drill bit is characterized in that: on drill body, sprayed the strong wear-resisting and anti-fracture stiff dough metal composites of one deck at least;
Described stiff dough metal composites comprises wolfram varbide and a kind of matrix material, and wherein the content of wolfram varbide in the stiff dough metal composites surpasses 50 weight %, and the tungsten carbide particle of at least 60% volume ratio is spherical; Said matrix material (by weight percentage) is by at least 80% nickel, 4.5-11% fusing assistant, and 3-7% copper and 1-5%Cr or Mo or its mixture are formed; Said fusing assistant is selected from boron, silicon and phosphorus.
9. drill bit as claimed in claim 8, wherein drill bit is a tricone bit.
10. drill bit as claimed in claim 8, the wear rate of said stiff dough metal composites is less than 1.1mm
3/ 1000 change.
11. drill bit as claimed in claim 8 is characterized in that: utilize heat spraying method that said stiff dough metal composites is sprayed on the instrument.
12. drill bit as claimed in claim 11, wherein heat spraying method is laser melting coating, plasma spray or flame spraying.
13. one kind is sprayed on the method on the instrument with wear-resisting and anti-fracture material, comprising:
1). make a kind of stiff dough metal composites, described stiff dough metal composites comprises wolfram varbide and a kind of matrix material, and wherein the content of wolfram varbide in the stiff dough metal composites surpasses 50 weight %, and the tungsten carbide particle of at least 60% volume ratio is spherical; Said matrix material (by weight percentage) is by at least 80% nickel, 4.5-11% fusing assistant, and 3-7% copper and 1-5%Cr or Mo or its mixture are formed; Said fusing assistant is selected from boron, silicon and phosphorus;
2). the stiff dough metal composites is sprayed on the instrument.
14. method as claimed in claim 13 is characterized in that: the content of wolfram varbide in the stiff dough metal composites surpasses 50-80 weight %.
15. method as claimed in claim 13 is characterized in that: this stiff dough metal composites has good flowability, and the content of wolfram varbide in the stiff dough metal composites is 8-13 times of fusing assistant content in the sticker.
16. method as claimed in claim 13 is characterized in that: utilize heat spraying method that said stiff dough metal composites is sprayed on the base metal.
17. method as claimed in claim 13, wherein heat spraying method is laser melting coating, plasma spray or flame spraying.
18. method as claimed in claim 13 is characterized in that: said instrument is tricone bit, diamond bit, milled tooth bit, cork drill, underground hole enlarger, bore very, stabilizer or centralizer.
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Cited By (12)
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| CN103205749A (en) * | 2013-04-27 | 2013-07-17 | 上海海事大学 | Nickel-based spherical tungsten carbide wear-resistant anti-corrosion coating and preparation method thereof |
| CN103388145A (en) * | 2013-08-05 | 2013-11-13 | 天津德华石油装备制造有限公司 | Overlaying welding method of metal-based composite-type hard-surface material layer of TC (Tungsten Carbide) bearing |
| CN104759724A (en) * | 2015-05-07 | 2015-07-08 | 东北石油大学 | Welding method for heating and connecting over-length hard alloy by using laser |
| CN108220950A (en) * | 2018-03-07 | 2018-06-29 | 西迪技术股份有限公司 | A kind of face coat and preparation method for hydraulic motor |
| CN108330430A (en) * | 2018-03-07 | 2018-07-27 | 广东省新材料研究所 | A method of improving bent axle axial plane plasma spraying Mo anchoring strength of coating |
| CN108607983A (en) * | 2018-05-07 | 2018-10-02 | 成都惠灵丰金刚石钻头有限公司 | A kind of abrasion-resistant matrix, preparation method and gauge wear-resistant block |
| CN108866544A (en) * | 2018-07-20 | 2018-11-23 | 合肥工业大学 | A kind of WC enhancing Fe base coating and preparation method thereof |
| CN109182947A (en) * | 2018-10-18 | 2019-01-11 | 湖北三峡职业技术学院 | A kind of shale gas exploitation drill bit high abrasion preparation technology of coating |
| WO2019037651A1 (en) * | 2017-08-23 | 2019-02-28 | 安泰天龙（宝鸡）钨钼科技有限公司 | Boron-containing tungsten carbide copper alloy and method for manufacturing same |
| CN111511485A (en) * | 2017-10-31 | 2020-08-07 | 欧瑞康美科（美国）公司 | Wear resistant layer |
| CN111719105A (en) * | 2020-06-30 | 2020-09-29 | 国家电网有限公司 | Drilling equipment for water conservancy and hydropower construction |
| CN113755835A (en) * | 2021-07-29 | 2021-12-07 | 深圳航天科创实业有限公司 | Wear-resistant coating and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205749B (en) * | 2013-04-27 | 2016-05-18 | 上海海事大学 | A kind of Ni-based spherical tungsten carbide wear-and corrosion-resistant coating and preparation method thereof |
| CN103205749A (en) * | 2013-04-27 | 2013-07-17 | 上海海事大学 | Nickel-based spherical tungsten carbide wear-resistant anti-corrosion coating and preparation method thereof |
| CN103388145A (en) * | 2013-08-05 | 2013-11-13 | 天津德华石油装备制造有限公司 | Overlaying welding method of metal-based composite-type hard-surface material layer of TC (Tungsten Carbide) bearing |
| CN104759724A (en) * | 2015-05-07 | 2015-07-08 | 东北石油大学 | Welding method for heating and connecting over-length hard alloy by using laser |
| WO2019037651A1 (en) * | 2017-08-23 | 2019-02-28 | 安泰天龙（宝鸡）钨钼科技有限公司 | Boron-containing tungsten carbide copper alloy and method for manufacturing same |
| US11819913B2 (en) | 2017-10-31 | 2023-11-21 | Oerlikon Metco (Us) Inc. | Wear resistant layer |
| CN111511485A (en) * | 2017-10-31 | 2020-08-07 | 欧瑞康美科（美国）公司 | Wear resistant layer |
| CN108220950A (en) * | 2018-03-07 | 2018-06-29 | 西迪技术股份有限公司 | A kind of face coat and preparation method for hydraulic motor |
| CN108330430A (en) * | 2018-03-07 | 2018-07-27 | 广东省新材料研究所 | A method of improving bent axle axial plane plasma spraying Mo anchoring strength of coating |
| CN108607983A (en) * | 2018-05-07 | 2018-10-02 | 成都惠灵丰金刚石钻头有限公司 | A kind of abrasion-resistant matrix, preparation method and gauge wear-resistant block |
| CN108866544A (en) * | 2018-07-20 | 2018-11-23 | 合肥工业大学 | A kind of WC enhancing Fe base coating and preparation method thereof |
| CN108866544B (en) * | 2018-07-20 | 2020-08-07 | 合肥工业大学 | WC (wolfram carbide) enhanced Fe-based coating and preparation method thereof |
| CN109182947A (en) * | 2018-10-18 | 2019-01-11 | 湖北三峡职业技术学院 | A kind of shale gas exploitation drill bit high abrasion preparation technology of coating |
| CN111719105B (en) * | 2020-06-30 | 2022-03-08 | 国家电网有限公司 | Drilling equipment for water conservancy and hydropower construction |
| CN111719105A (en) * | 2020-06-30 | 2020-09-29 | 国家电网有限公司 | Drilling equipment for water conservancy and hydropower construction |
| CN113755835A (en) * | 2021-07-29 | 2021-12-07 | 深圳航天科创实业有限公司 | Wear-resistant coating and preparation method thereof |
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Address after: 412000 No. 8 Hua Nan Road, Hunan, Zhuzhou Patentee after: ZHU ZHOU SEED CEMENTED CARBIDE TECHNOLOGY Co.,Ltd. Address before: 412000 No. 8 Hua Nan Road, Hunan, Zhuzhou Patentee before: Zhu Zhou Seed Cemented Carbide Technology Co.,Ltd. |
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Address after: Zhuzhou City, Hunan province 412002 Lusong District of Prince Edward Road, hi tech Park Dong Jia Duan Patentee after: SEED TECHNOLOGIES Corp.,Ltd. Address before: 412000 No. 8 Hua Nan Road, Hunan, Zhuzhou Patentee before: ZHU ZHOU SEED CEMENTED CARBIDE TECHNOLOGY Co.,Ltd. |
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Denomination of invention: A wear-resistant material used in drilling applications Effective date of registration: 20231226 Granted publication date: 20130821 Pledgee: Changsha Bank city branch of Limited by Share Ltd. Pledgor: SEED TECHNOLOGIES Corp.,Ltd. Registration number: Y2023980074149 |