CN108546946A - A kind of laser strengthening method of heavy drill shank - Google Patents
A kind of laser strengthening method of heavy drill shank Download PDFInfo
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- CN108546946A CN108546946A CN201810286721.1A CN201810286721A CN108546946A CN 108546946 A CN108546946 A CN 108546946A CN 201810286721 A CN201810286721 A CN 201810286721A CN 108546946 A CN108546946 A CN 108546946A
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- drill shank
- heavy drill
- water
- alloy powder
- laser
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/06—Alloys based on chromium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Powder Metallurgy (AREA)
- Drilling Tools (AREA)
Abstract
The present invention provides a kind of laser strengthening method of heavy drill shank comprising following steps：Using washes of absolute alcohol heavy drill shank surface, the impurity of surface adhesion is removed；After water-soluble resin, water and alloy powder are mixed in proportion, it is equably painted on heavy drill shank surface, coating layer thickness 0.5mm dries；Heavy drill shank is fixed on semiconductor laser machining tool, drives heavy drill shank to rotate using chuck, by laser scanning resin aqueous solution and alloy powder mixed coating, alloy cladding layer is obtained on heavy drill shank surface；Surface dye penetrant inspection is carried out to the heavy drill shank after cladding.The present invention can make heavy drill shank realize laser reinforcing, have many advantages, such as that simple for process, controllability is strong, of low cost, energy conservation and environmental protection, quickly strengthen.
Description
Technical field
The invention belongs to field of metal surface treatment technology, more particularly to a kind of laser strengthening method of heavy drill shank.
Background technology
Main tool of the heavy drill shank as large-scale drill jumbo, be widely used in water power, railway, highway, harbour,
In the drilling engineerings such as mining, quarrying.With rate of penetration, fast, impact energy transmits that loss is small, rock penetration performance is high, is easily achieved machine
The advantages that tool Drilling and improvement Drilling Conditions.Heavy drill shank belongs to tool-class product, with heavy drill and gas-liquid linked
The introduction of rock drill is succeeded in developing, and number of applications is significantly larger than other drilling tools.Since operating mode is severe, it is desirable that heavy drill shank can be held
By high-frequency percussion, endurance, wear-resisting and high torque.Therefore, in the actual production process, the property of heavy drill shank how is improved
Can, it prolong the service life with important economic value and social benefit.
Invention content
The object of the present invention is to provide it is a kind of it is simple for process, controllability is strong, of low cost, energy conservation and environmental protection, quickly strengthens
The laser strengthening method of heavy drill shank.The present invention is mainly mixed using brushing resin aqueous solution on heavy drill shank with alloy powder
Object obtains cladding alloy-layer, to make heavy drill shank quickly strengthen by laser scanning mixed coating on heavy drill shank surface.
The present invention includes the following steps：
(1) washes of absolute alcohol heavy drill shank surface is used, the impurity of surface adhesion is removed；
(2) after mixing in proportion water-soluble resin, water and alloy powder, equably it is painted on heavy drill shank table
Face, coating layer thickness 0.5mm, dries；
The mass ratio of the water-soluble resin, water and alloy powder is 0.5-0.8：4.5-7.2:92-95；
The granularity of the alloy powder is 135-325 mesh, its mass percent is：Ni 10-15%, Cr 70-75%, C
4.0-12%, W 10-16%；
(3) heavy drill shank is fixed on semiconductor laser machining tool, drives heavy drill shank to rotate using chuck, passes through
Laser scanning resin aqueous solution and alloy powder mixed coating, alloy cladding layer is obtained on heavy drill shank surface；
Process parameter control is when the laser scanning：Laser hot spot is 2 × 14mm rectangular light spots, and scan power is
3000-4000W, sweep speed 1000-1500mm/min.
(4) surface dye penetrant inspection is carried out to the heavy drill shank after cladding.
The present invention has the following advantages that compared with prior art：
1) simple for process, not generate pollution, energy conservation and environmental protection, controllability strong；
2) laser technology Energy distribution is intensive, and deflection is small, is metallurgical binding between alloy cladding layer and matrix；
3) treated, and heavy drill shank surface can obtain the martensitic structure knot of the tiny high intensity of crystal grain, high rigidity
Structure, the various Carbide Phases generated in cladding process significantly improve alloy-layer hardness, wearability and red hardness energy, alloy cladding
The hardness of layer improves HRC20 or more compared with structural alloy steel heavy drill shank hardness, and heavy drill shank service life 2 times or more can be improved, from
And improve work efficiency, reduce cost.
Specific implementation mode
Embodiment 1
(1) washes of absolute alcohol 23CrNi3Mo heavy drill shanks surface is used, the impurity of surface adhesion is removed；
(2) water-soluble resin is pressed：Water：Mass ratio=0.5 of alloy powder：4.5:95 ratio, wherein alloy powder
Granularity is 135-325 mesh, mass percent is：Ni 10%, Cr 70%, C 4.0%, W 16%, by water-soluble resin, water with
Alloy powder after mixing, is equably painted on heavy drill shank surface, and coating layer thickness 0.5mm dries；
(3) heavy drill shank is fixed on semiconductor laser machining tool, drives heavy drill shank to rotate using chuck, passes through
Laser scanning resin aqueous solution and alloy powder mixed coating, laser hot spot are 2 × 14mm rectangular light spots, and scan power is
3000W, sweep speed 1000mm/min obtain alloy cladding layer on heavy drill shank surface；
(4) surface dye penetrant inspection is carried out to the heavy drill shank after cladding.
After testing, alloy cladding layer Rockwell hardness improves HRC20 or more, laser compared with structural alloy steel heavy drill shank hardness
Strengthen heavy drill shank service life and improves 2 times or more.
Embodiment 2
(1) washes of absolute alcohol 23CrNi3Mo heavy drill shanks surface is used, the impurity of surface adhesion is removed；
(2) according to water-soluble resin：Water：Mass ratio=0.8 of alloy powder:7.2:92 ratio, wherein alloy powder
Granularity be 135-325 mesh, mass percent is：Ni 15%, Cr 75%, C 4.0%, W 16%, by water-soluble resin, water
After mixing with alloy powder, it is equably painted on heavy drill shank surface, coating layer thickness 0.5mm dries；
(3) heavy drill shank is fixed on semiconductor laser machining tool, drives heavy drill shank to rotate using chuck, passes through
Laser scanning resin aqueous solution and alloy powder mixed coating, laser hot spot are 2 × 14mm rectangular light spots, and scan power is
4000W, sweep speed 1500mm/min obtain alloy cladding layer on heavy drill shank surface；
(4) surface dye penetrant inspection is carried out to the heavy drill shank after cladding.
After testing, alloy cladding layer Rockwell hardness improves HRC20 or more, laser compared with structural alloy steel heavy drill shank hardness
Strengthen heavy drill shank service life and improves 2 times or more.
Embodiment 3
(1) washes of absolute alcohol 23CrNi3Mo heavy drill shanks surface is used, the impurity of surface adhesion is removed；
(2) water-soluble resin is pressed：Water：Alloy powder mass ratio=0.6:5.4:94 ratio, the wherein grain of alloy powder
Degree is 135-325 mesh, mass percent is：Ni 10%, Cr 70%, C 10%, W 10%, by water-soluble resin, water and conjunction
Bronze end after mixing, is equably painted on heavy drill shank surface, and coating layer thickness 0.5mm dries；
(3) heavy drill shank is fixed on semiconductor laser machining tool, drives heavy drill shank to rotate using chuck, passes through
Laser scanning resin aqueous solution and alloy powder mixed coating, laser hot spot are 2 × 14mm rectangular light spots, and scan power is
3200W, sweep speed 1100mm/min obtain alloy cladding layer on heavy drill shank surface；
(4) surface dye penetrant inspection is carried out to the heavy drill shank after cladding.
After testing, alloy cladding layer Rockwell hardness improves HRC20 or more, laser compared with structural alloy steel heavy drill shank hardness
Strengthen heavy drill shank service life and improves 2 times or more.
Embodiment 4
(1) washes of absolute alcohol 23CrNi3Mo heavy drill shanks surface is used, the impurity of surface adhesion is removed；
(2) water-soluble resin is pressed：Water：Alloy powder mass ratio=0.5：4.5:95 ratio, the wherein grain of alloy powder
Degree is 135-325 mesh, mass percent is：Ni 10%, Cr 70%, C 10%, W 10%, by water-soluble resin, water and conjunction
Bronze end after mixing, is equably painted on heavy drill shank surface, and coating layer thickness 0.5mm dries；
(3) heavy drill shank is fixed on semiconductor laser machining tool, drives heavy drill shank to rotate using chuck, passes through
Laser scanning resin aqueous solution and alloy powder mixed coating, laser hot spot are 2 × 14mm rectangular light spots, and scan power is
3300W, sweep speed 1150mm/min obtain alloy cladding layer on heavy drill shank surface；
(4) surface dye penetrant inspection is carried out to the heavy drill shank after cladding.
After testing, alloy cladding layer Rockwell hardness improves HRC20 or more, laser compared with structural alloy steel heavy drill shank hardness
Strengthen heavy drill shank service life and improves 2 times or more.
Embodiment 5
(1) washes of absolute alcohol 23CrNi3Mo heavy drill shanks surface is used, the impurity of surface adhesion is removed；
(2) water-soluble resin is pressed：Water：Alloy powder mass ratio=0.8:7.2:92 ratio, the wherein grain of alloy powder
Degree is 135-325 mesh, mass percent is：Ni 15%, Cr 70%, C 5%, W 10%, by water-soluble resin, water and alloy
Powder after mixing, is equably painted on heavy drill shank surface, and coating layer thickness 0.5mm dries；
(3) heavy drill shank is fixed on semiconductor laser machining tool, drives heavy drill shank to rotate using chuck, passes through
Laser scanning resin aqueous solution and alloy powder mixed coating, laser hot spot are 2 × 14mm rectangular light spots, and scan power is
3500W, sweep speed 1250mm/min obtain alloy cladding layer on heavy drill shank surface；
(4) surface dye penetrant inspection is carried out to the heavy drill shank after cladding.
After testing, alloy cladding layer Rockwell hardness improves HRC20 or more, laser compared with structural alloy steel heavy drill shank hardness
Strengthen heavy drill shank service life and improves 2 times or more.
Embodiment 6
(1) washes of absolute alcohol 23CrNi3Mo heavy drill shanks surface is used, the impurity of surface adhesion is removed；
(2) water-soluble resin is pressed：Water：Alloy powder mass ratio=0.7:6.3:93 ratio, the wherein grain of alloy powder
Degree is 135-325 mesh, mass percent is：Ni 10%, Cr 70%, C 4.0%, W 16%, by water-soluble resin, water and conjunction
Bronze end after mixing, is equably painted on heavy drill shank surface, and coating layer thickness 0.5mm dries；
(3) heavy drill shank is fixed on semiconductor laser machining tool, drives heavy drill shank to rotate using chuck, passes through
Laser scanning resin aqueous solution and alloy powder mixed coating, laser hot spot are 2 × 14mm rectangular light spots, and scan power is
3900W, sweep speed 1400mm/min obtain alloy cladding layer on heavy drill shank surface；
(4) surface dye penetrant inspection is carried out to the heavy drill shank after cladding.
After testing, alloy cladding layer Rockwell hardness improves HRC20 or more, laser compared with structural alloy steel heavy drill shank hardness
Strengthen heavy drill shank service life and improves 2 times or more.
Embodiment 7
(1) washes of absolute alcohol 23CrNi3Mo heavy drill shanks surface is used, the impurity of surface adhesion is removed；
(2) water-soluble resin is pressed：Water：Alloy powder mass ratio=0.5：4.5:95 ratio, the wherein grain of alloy powder
Degree is 135-325 mesh, mass percent is：Ni 10%, Cr 70%, C 5%, W 15% are by water-soluble resin, water and alloy
Powder after mixing, is equably painted on heavy drill shank surface, and coating layer thickness 0.5mm dries；
(3) heavy drill shank is fixed on semiconductor laser machining tool, drives heavy drill shank to rotate using chuck, passes through
Laser scanning resin aqueous solution and alloy powder mixed coating, laser hot spot are 2 × 14mm rectangular light spots, and scan power is
3900W, sweep speed 1450mm/min obtain alloy cladding layer on heavy drill shank surface；
(4) surface dye penetrant inspection is carried out to the heavy drill shank after cladding.
After testing, alloy cladding layer Rockwell hardness improves HRC20 or more, laser compared with structural alloy steel heavy drill shank hardness
Strengthen heavy drill shank service life and improves 2 times or more.
Embodiment 8
(1) washes of absolute alcohol 23CrNi3Mo heavy drill shanks surface is used, the impurity of surface adhesion is removed；
(2) water-soluble resin is pressed：Water：Alloy powder mass ratio=0.8:7.2:92 ratio, the wherein grain of alloy powder
Degree is 135-325 mesh, mass percent is：Ni 10%, Cr 70%, C 8%, W 12% are by water-soluble resin, water and alloy
Powder after mixing, is equably painted on heavy drill shank surface, and coating layer thickness 0.5mm dries；
(3) heavy drill shank is fixed on semiconductor laser machining tool, drives heavy drill shank to rotate using chuck, passes through
Laser scanning resin aqueous solution and alloy powder mixed coating, laser hot spot are 2 × 14mm rectangular light spots, and scan power is
4000W, sweep speed 1500mm/min obtain alloy cladding layer on heavy drill shank surface；
(4) surface dye penetrant inspection is carried out to the heavy drill shank after cladding.
After testing, alloy cladding layer Rockwell hardness improves HRC20 or more, laser compared with structural alloy steel heavy drill shank hardness
Strengthen heavy drill shank service life and improves 2 times or more.
Claims (2)
1. a kind of laser strengthening method of heavy drill shank, it is characterised in that：It includes the following steps：
(1) washes of absolute alcohol heavy drill shank surface is used, the impurity of surface adhesion is removed；
(2) water-soluble resin is pressed：Water：Mass ratio=0.5-0.8 of alloy powder：4.5-7.2:92-95 is by water-soluble resin, water
After being mixed in proportion with alloy powder, it is equably painted on heavy drill shank surface, coating layer thickness 0.5mm dries；
The granularity of the alloy powder is 135-325 mesh, and mass percent is：Ni 10-15%, Cr 70-75%, C 4.0-
12%, W 10-16%；
(3) heavy drill shank of step (2) is fixed on semiconductor laser machining tool, drives heavy drill shank to revolve using chuck
Turn, by laser scanning resin aqueous solution and alloy powder mixed coating, alloy cladding layer is obtained on heavy drill shank surface；
(4) surface dye penetrant inspection is carried out to the heavy drill shank after cladding.
2. the laser strengthening method of heavy drill shank according to claim 1, it is characterised in that：The technique when laser scanning
State modulator is：Laser hot spot is 2 × 14mm rectangular light spots, scan power 3000-4000W, sweep speed 1000-
1500mm/min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810286721.1A CN108546946A (en) | 2018-03-30 | 2018-03-30 | A kind of laser strengthening method of heavy drill shank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810286721.1A CN108546946A (en) | 2018-03-30 | 2018-03-30 | A kind of laser strengthening method of heavy drill shank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108546946A true CN108546946A (en) | 2018-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810286721.1A Pending CN108546946A (en) | 2018-03-30 | 2018-03-30 | A kind of laser strengthening method of heavy drill shank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111349955A (en) * | 2020-03-18 | 2020-06-30 | 燕山大学 | Method for repairing fatigue crack of drill rod |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1403397A1 (en) * | 2002-09-27 | 2004-03-31 | Nuovo Pignone Holding S.P.A. | Cobalt-based alloy for the coating of components subject to erosion by liquid |
| CN101629256A (en) * | 2009-07-20 | 2010-01-20 | 苏州大学 | Nickel chromium alloy for sealing face of nuclear power valve |
| CN101775479A (en) * | 2010-03-12 | 2010-07-14 | 武汉高斯激光技术有限公司 | Alloying treatment method for surface of spheroidal graphite cast iron roll |
| CN106337179A (en) * | 2015-07-07 | 2017-01-18 | 武汉点金激光科技有限公司 | Laser surface alloying treatment process for heating furnace hearth roll collar |
-
2018
- 2018-03-30 CN CN201810286721.1A patent/CN108546946A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1403397A1 (en) * | 2002-09-27 | 2004-03-31 | Nuovo Pignone Holding S.P.A. | Cobalt-based alloy for the coating of components subject to erosion by liquid |
| CN101629256A (en) * | 2009-07-20 | 2010-01-20 | 苏州大学 | Nickel chromium alloy for sealing face of nuclear power valve |
| CN101775479A (en) * | 2010-03-12 | 2010-07-14 | 武汉高斯激光技术有限公司 | Alloying treatment method for surface of spheroidal graphite cast iron roll |
| CN106337179A (en) * | 2015-07-07 | 2017-01-18 | 武汉点金激光科技有限公司 | Laser surface alloying treatment process for heating furnace hearth roll collar |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111349955A (en) * | 2020-03-18 | 2020-06-30 | 燕山大学 | Method for repairing fatigue crack of drill rod |
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Application publication date: 20180918 |
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