CN107675164A - A kind of alloy powder and laser cladding method for rotary digging tooth denticle surface laser cladding - Google Patents
A kind of alloy powder and laser cladding method for rotary digging tooth denticle surface laser cladding Download PDFInfo
- Publication number
- CN107675164A CN107675164A CN201710683529.1A CN201710683529A CN107675164A CN 107675164 A CN107675164 A CN 107675164A CN 201710683529 A CN201710683529 A CN 201710683529A CN 107675164 A CN107675164 A CN 107675164A
- Authority
- CN
- China
- Prior art keywords
- rotary digging
- digging tooth
- annular groove
- laser cladding
- alloy powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 201000011180 Dental Pulp Calcification Diseases 0.000 title claims abstract description 44
- 238000004372 laser cladding Methods 0.000 title claims abstract description 35
- 239000000843 powder Substances 0.000 title claims abstract description 35
- 239000000956 alloy Substances 0.000 title claims abstract description 32
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005253 cladding Methods 0.000 claims abstract description 23
- 238000002844 melting Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000000376 reactant Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 125000003158 alcohol group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
- C23C24/106—Coating with metal alloys or metal elements only
-
- B22F1/0003—
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/057—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being less 10%
Abstract
The invention discloses a kind of alloy powder and laser cladding method for rotary digging tooth denticle surface laser cladding, the alloy powder consists of the following components in percentage by weight：Fe：6.3%~6.9%；Cr：8.5%~9.1%；C：2.2%~2.7%；Si：2.1%~2.8%；B：1.4%~1.9%；W：32%~34%；Co：1.5%~1.6%；Remaining is Ni.Laser cladding method includes：(1) multiple annular grooves are processed；(2) laser head is directed at one of annular groove；(3) alloy powder is sent；(4) laser melting coating.(5) laser head is directed at next annular groove, repeat step (3) and (4)；(6) repeat step (5), until all annular grooves complete cladding.This method can assign rotary digging tooth denticle taper surface very high wearability, and rotary digging tooth denticle toughness keeps good.
Description
Technical field
The invention belongs to material surface strengthening technical field, and in particular to one kind is used for rotary digging tooth denticle surface laser cladding
Alloy powder and laser cladding method.
Background technology
Rotary drilling rig play the role of in infrastructure construction it is very important, in bored concrete pile, diaphragm wall, strengthening of foundation etc.
Found broad application in a variety of foundation basic constructions.And drill bit is then one of key component of rotary drilling rig, drill bit is by installation
Rotary digging tooth thereon carries out rotary digging operation to soil layer rock for being contacted etc..Therefore, the service life of rotary digging tooth and performance are good
It is bad to directly affects construction speed and cost input.
At present, the rotary digging tooth species of commercial type is various, can meet requirement substantially.Most of rotary digging tooth denticle bases
Material often uses 42CrMo, 35CrMnSi etc., but the resistance to elevated temperatures of such material is poor, after uninterrupted working time is longer, denticle temperature
Drastically raise, combination property declines serious, and so as to produce anti-wear performance reduction, toughness reduces, cause denticle Fast Wearing and
Fracture etc..In addition, existing rotary digging tooth wearing layer is often using directly by the way of product taper surface surface cladding wearing layer, will be resistance to
Mill layer is paved with whole taper surface.Although the wearability of rotary digging tooth working face can be greatly improved in the method, in cladding process
Also substantial amounts of heat input is brought, reduces the toughness of this region denticle base material, causes stress concentration, rotary digging tooth is in operation process
In can easily produce and break, ftracture, a series of problems, such as wearing layer peels off.Therefore need to design a kind of new rotary digging tooth and wear-resisting
Layer preparation technology, makes rotary digging tooth obtain good resistance to elevated temperatures, while have wearability and toughness concurrently in working face.
The content of the invention
The technical problem to be solved in the present invention is overcome the deficiencies in the prior art, there is provided one kind can make rotary digging tooth denticle simultaneously
Taper surface has the alloy powder and laser cladding method for rotary digging tooth denticle surface laser cladding of wearability and toughness concurrently.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of alloy powder for rotary digging tooth denticle surface laser cladding, consist of the following components in percentage by weight：
Fe：6.3%~6.9%；Cr：8.5%~9.1%；C：2.2%~2.7%；Si：2.1%~2.8%；B：1.4%~
1.9%；W：32%~34%；Co：1.5%~1.6%；Remaining is Ni.
Preferably, the granularity of the alloy powder for rotary digging tooth denticle surface laser cladding is 80~325 mesh.
Preferably, the material of the rotary digging tooth denticle be H13K, 321,309,310S, 314,6Mo, 15CrMo, 42CrMo,
35CrMnSi、12Cr1MoV、12CrMoWVTiB、10Cr2Mo1、25Cr2Mo1V、20Cr3MoWv、1Cr11MoV、1Cr12WmoV
Or 2Cr12WMoNbVB.
The inventive concept total as one, the present invention also provide a kind of using above-mentioned alloy powder progress rotary digging tooth denticle
The method of surface laser cladding, comprises the following steps：
(1) multiple annular grooves are processed on rotary digging tooth denticle taper surface；
(2) laser head of laser is directed at one of them in the multiple annular groove；
(3) uniformly it is sent into the alloy powder in the annular groove being aligned to laser head；
(4) laser head sends laser, the alloy powder as described in desired trajectory continuous melting, reactant caused by fusing
The annular groove is filled, air cooling, forms cladding layer.
(5) laser head is directed at next annular groove, repeat step (3) and (4)；
(6) repeat step (5), until all annular grooves complete cladding.
Preferably, in the step (4), laser cladding technological parameter is：1500~2800W of power, sweep speed 2~
5mm/s, defocusing amount -25~+45mm, feed speed 10g/min~30g/min of alloy powder, 10~30L/ of protection air-flow amount
min。
Preferably, laser facula is circular light spot or square focus spot.
Preferably, the diameter of groove width≤circular light spot of annular groove, or the diagonal of groove width≤square focus spot of annular groove
Length.
Preferably, in the step (1), the groove width of interval >=single annular groove between adjacent annular groove.
Preferably, in the step (4), the thickness of the cladding layer is more than more than the groove depth 1.5mm of annular groove.
Preferably, between the step (1) and (2), in addition to：Oil removing, processing of rust removing are carried out to annular groove.
Compared with prior art, the advantage of the invention is that：
The present invention in rotary digging tooth denticle taper surface by processing multiple equidistant annular grooves, then cladding is wear-resisting in annular groove
Layer, than the denticle base directly during the mode of product taper surface surface cladding wearing layer, present invention formation cladding wearing layer
The toughness of material declines small, i.e., the alternate cooperation of the invention that can obtain high hardness wear-resisting layer and high tenacity base material, in guarantee rotary digging tooth
While wearability, effectively it can prevent thermal stress from failing.
Embodiment
Below in conjunction with specific preferred embodiment, the invention will be further described, but not thereby limiting the invention
Protection domain.
Embodiment 1：
A kind of alloy powder for rotary digging tooth denticle surface laser cladding, consist of the following components in percentage by weight：
Fe：6.5%；Cr：8.8%；C：2.5%；Si：2.5%；B：1.6%；W：33%；Co：1.5%；Remaining is Ni.The alloyed powder
The granularity at end is between 80~325 mesh.
It is a kind of to carry out rotary digging tooth denticle (material is H13K (4Cr5MoSiV1)) surface laser using above-mentioned alloy powder
The method of cladding, comprises the following steps：
(1) multiple equidistant annular grooves are processed in rotary digging tooth denticle taper surface, the groove width and groove depth of each annular groove are equal,
And the interval between adjacent annular groove is more than the groove width of single annular groove；
(2) to carrying out oil removing, processing of rust removing in rotary digging tooth denticle conical surface and annular groove, oil removal treatment is alcohol washes
+ be cleaned by ultrasonic, processing of rust removing cleans for flame；
(3) laser head of laser is aligned to the annular groove of rotary digging tooth denticle taper surface bottom；
(4) above-mentioned alloy powder, the feed speed 20g/ of alloy powder are uniformly sent into the annular groove being aligned to laser head
min；
(5) laser head sends laser, and laser facula is circular light spot, and the diameter of the circular light spot is equal to annular groove
Groove width, the alloy powder as described in desired trajectory continuous melting, reactant caused by fusing fill the annular groove；Laser is specifically pre-
If track is S type movement locus, i.e.,：From the center on annular groove top to the central motion of bottom, left end is then moved to from bottom
The nearest motor point of the heart, then the left end motor point nearest from top center is linearly moved to from the motor point, moved by this rule,
Until complete annular groove left end cladding；Then laser head moves to the right-hand member motor point nearest from top central point, and rail is moved by S types
Mark completes annular groove right-hand member cladding.Air cooling after the completion of cladding, cladding layer is formed, cladding layer is full of whole annular groove, cladding layer
Thickness be more than annular groove groove depth 2mm.Laser cladding technological parameter is：Power 2000W, sweep speed 3mm/s, defocusing amount
15mm, protection air-flow amount 20L/min.
(6) laser head is directed at next annular groove, repeat step (4) and (5)；
(7) repeat step (6), until all annular grooves complete cladding.
Embodiment 2：
A kind of alloy powder for rotary digging tooth denticle surface laser cladding, consist of the following components in percentage by weight：
Fe：6.4%；Cr：9.0%；C：2.5%；Si：2.6%；B：1.5%；W：32%；Co：1.6%；Remaining is Ni.The alloyed powder
The granularity at end is between 80~325 mesh.
A kind of method that rotary digging tooth denticle (material 42CrMo) surface laser cladding is carried out using above-mentioned alloy powder,
Essentially identical with embodiment, it only difference is that：
The feed speed 15g/min of alloy powder；Laser cladding technological parameter is：Power 2500W, sweep speed 3mm/s,
Defocusing amount 20mm, protection air-flow amount 15L/min.
Embodiment 3：
A kind of alloy powder for rotary digging tooth denticle surface laser cladding, consist of the following components in percentage by weight：
Fe：6.8%；Cr：8.8%；C：2.5%；Si：2.4%；B：1.5%；W：32%；Co：1.6%；Remaining is Ni.The alloyed powder
The granularity at end is between 80~325 mesh.
A kind of side that rotary digging tooth denticle (material 25Cr2Mo1V) surface laser cladding is carried out using above-mentioned alloy powder
Method, essentially identical with embodiment, it only difference is that：
The feed speed 30g/min of alloy powder；Laser cladding technological parameter is：Power 2700W, sweep speed 4mm/s,
Defocusing amount -10mm, protection air-flow amount 15L/min.
After tested, the method for the surface laser cladding of embodiment 1~3, it is resistance to than directly in product taper surface surface cladding
The mode of layer is ground, there is the rotary digging tooth of cladding wearing layer of the present invention to be not likely to produce in operation process and break, ftracture, illustrate the present invention
The toughness of denticle base material declines small during formation cladding wearing layer；And wearing layer is not easy to peel off, illustrate denticle base material with it is resistance to
It is more firm to grind layer combination, above test result shows that the present invention can obtain that high hardness wear-resisting layer is alternate with high tenacity base material to match somebody with somebody
Close, while rotary digging tooth wearability is ensured, effectively can prevent thermal stress from failing.
It is described above, only it is several embodiments of the application, any type of limitation is not done to the application, although this Shen
Please with preferred embodiment disclose as above, but and be not used to limit the application, any person skilled in the art, do not taking off
In the range of technical scheme, make a little variation using the technology contents of the disclosure above or modification is equal to
Case study on implementation is imitated, is belonged in the range of technical scheme.
Claims (10)
1. a kind of alloy powder for rotary digging tooth denticle surface laser cladding, it is characterised in that by following percentage by weight
Component forms：Fe：6.3%~6.9%；Cr：8.5%~9.1%；C：2.2%~2.7%；Si：2.1%~2.8%；B：
1.4%~1.9%；W：32%~34%；Co：1.5%~1.6%；Remaining is Ni.
2. the alloy powder according to claim 1 for rotary digging tooth denticle surface laser cladding, it is characterised in that described
Granularity for the alloy powder of rotary digging tooth denticle surface laser cladding is 80~325 mesh.
3. the alloy powder according to claim 1 or 2 for rotary digging tooth denticle surface laser cladding, it is characterised in that
The material of the rotary digging tooth denticle be H13K, 321,309,310S, 314,6Mo, 15CrMo, 42CrMo, 35CrMnSi,
12Cr1MoV, 12CrMoWVTiB, 10Cr2Mo1,25Cr2Mo1V, 20Cr3MoWv, 1Cr11MoV, 1Cr12WmoV or
2Cr12WMoNbVB。
4. a kind of alloy powder using described in any one of claims 1 to 3 carries out the side of rotary digging tooth denticle surface laser cladding
Method, comprise the following steps：
(1) multiple annular grooves are processed on rotary digging tooth denticle taper surface；
(2) laser head of laser is directed at one of them in the multiple annular groove；
(3) uniformly it is sent into the alloy powder in the annular groove being aligned to laser head；
(4) laser head sends laser, the alloy powder as described in desired trajectory continuous melting, and reactant caused by fusing is filled
The annular groove, air cooling, form cladding layer.
(5) laser head is directed at next annular groove, repeat step (3) and (4)；
(6) repeat step (5), until all annular grooves complete cladding.
5. the method for rotary digging tooth denticle surface laser cladding according to claim 4, it is characterised in that the step (4)
In, laser cladding technological parameter is：1500~2800W of power, 2~5mm/s of sweep speed, defocusing amount -25~+45mm, alloy
Feed speed 10g/min~30g/min of powder, 10~30L/min of protection air-flow amount.
6. the method for rotary digging tooth denticle surface laser cladding according to claim 5, it is characterised in that laser facula is circle
Shape hot spot or square focus spot.
7. the method for rotary digging tooth denticle surface laser cladding according to claim 6, it is characterised in that the groove width of annular groove
The diameter of≤circular light spot, or the catercorner length of groove width≤square focus spot of annular groove.
8. the method for the rotary digging tooth denticle surface laser cladding according to any one of claim 4~7, it is characterised in that institute
To state in step (1), the multiple annular groove is uniformly distributed along rotary digging tooth denticle circumferential surface, the interval between adjacent annular groove >=
The groove width of single annular groove.
9. the method for the rotary digging tooth denticle surface laser cladding according to any one of claim 4~7, it is characterised in that institute
State in step (4), the thickness of the cladding layer is more than more than the groove depth 1.5mm of annular groove.
10. the method for the rotary digging tooth denticle surface laser cladding according to any one of claim 4~7, it is characterised in that institute
State between step (1) and (2), in addition to：Oil removing, processing of rust removing are carried out to annular groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710683529.1A CN107675164B (en) | 2017-08-11 | 2017-08-11 | A kind of alloy powder and laser cladding method for rotary digging tooth denticle surface laser cladding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710683529.1A CN107675164B (en) | 2017-08-11 | 2017-08-11 | A kind of alloy powder and laser cladding method for rotary digging tooth denticle surface laser cladding |
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| Publication Number | Publication Date |
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| CN107675164A true CN107675164A (en) | 2018-02-09 |
| CN107675164B CN107675164B (en) | 2019-10-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110923696A (en) * | 2019-11-01 | 2020-03-27 | 江苏特维克科技有限公司 | Laser cladding nickel-based material for surface of ball valve and additive manufacturing process thereof |
| CN112322996A (en) * | 2020-10-19 | 2021-02-05 | 中国科学院半导体研究所 | Alloy powder for steel rail laser cladding strengthening and laser cladding method |
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| US3743556A (en) * | 1970-03-30 | 1973-07-03 | Composite Sciences | Coating metallic substrate with powdered filler and molten metal |
| CN103350224A (en) * | 2013-06-18 | 2013-10-16 | 江苏和昊激光科技有限公司 | Special nickel metal ceramal powder for laser cladding of crankshaft |
| CN104593766A (en) * | 2014-12-15 | 2015-05-06 | 江苏中科大港激光科技有限公司 | Laser preparation method of erosion-resistant surface layer of spherical body of ball valve in coal chemical industry |
| CN204646234U (en) * | 2015-04-10 | 2015-09-16 | 山东天工岩土工程设备有限公司 | A kind of high-wear-resistance mining pick |
-
2017
- 2017-08-11 CN CN201710683529.1A patent/CN107675164B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3743556A (en) * | 1970-03-30 | 1973-07-03 | Composite Sciences | Coating metallic substrate with powdered filler and molten metal |
| CN103350224A (en) * | 2013-06-18 | 2013-10-16 | 江苏和昊激光科技有限公司 | Special nickel metal ceramal powder for laser cladding of crankshaft |
| CN104593766A (en) * | 2014-12-15 | 2015-05-06 | 江苏中科大港激光科技有限公司 | Laser preparation method of erosion-resistant surface layer of spherical body of ball valve in coal chemical industry |
| CN204646234U (en) * | 2015-04-10 | 2015-09-16 | 山东天工岩土工程设备有限公司 | A kind of high-wear-resistance mining pick |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110923696A (en) * | 2019-11-01 | 2020-03-27 | 江苏特维克科技有限公司 | Laser cladding nickel-based material for surface of ball valve and additive manufacturing process thereof |
| CN112322996A (en) * | 2020-10-19 | 2021-02-05 | 中国科学院半导体研究所 | Alloy powder for steel rail laser cladding strengthening and laser cladding method |
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| CN107675164B (en) | 2019-10-18 |
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