CN109821820A - A kind of spheroidal graphite cast-iron surface laser cleaning method - Google Patents
A kind of spheroidal graphite cast-iron surface laser cleaning method Download PDFInfo
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- CN109821820A CN109821820A CN201910182262.7A CN201910182262A CN109821820A CN 109821820 A CN109821820 A CN 109821820A CN 201910182262 A CN201910182262 A CN 201910182262A CN 109821820 A CN109821820 A CN 109821820A
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- spheroidal graphite
- graphite cast
- laser cleaning
- iron
- iron surface
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Abstract
The present invention discloses a kind of spheroidal graphite cast-iron surface laser cleaning method, adjust the average output power of laser cleaning machine, repetition, the laser pulse width of output, output spot size and sweep speed, it adjusts the hot spot and acts on spheroidal graphite cast-iron surface, realize that scanning laser effectively removes spheroidal graphite cast-iron surface graphite particle, promote cleaning efficiency, and guarantee effectively to avoid the damage to spheroidal graphite cast-iron matrix while removing spheroidal graphite cast-iron surface graphite particle.
Description
Technical field
The present invention relates to laser engineering fields, more particularly to a kind of spheroidal graphite cast-iron surface laser cleaning method.
Background technique
Cast iron, especially spheroidal graphite cast-iron have been developed as a kind of irreplaceable metal material, multiple for casting stress
It is miscellaneous, it is desirable that higher machine components, and it is widely used in many important engineering components.At present in the every field of national economy
There are application, such as automobile, engine, engineering machinery, agricultural machinery, cast tube and pipe fitting and lathe.Carbon in spheroidal graphite cast-iron with
Globular graphite state is distributed in cast iron, shows that Cast Iron Surface is exactly that globular graphite is embedded in cast iron.In engineering, engineering
Component is frequently necessary to weld, and the globular graphite being embedded in cast iron is affected to welding performance.Since graphite performance is stablized, mesh
The methods of preceding cleaning method such as pickling, alkali cleaning, which not can be carried out, to be effectively removed, and is easy to cause Cast Iron Surface certain
Damage.
Summary of the invention
The object of the present invention is to provide one kind can effectively remove spheroidal graphite cast-iron surface graphite particle, while spheroidal graphite being avoided to cast
The high efficiency spheroidal graphite cast-iron surface laser cleaning method of iron-based bulk damage.
To achieve the above object, the present invention provides following schemes:
A kind of spheroidal graphite cast-iron surface laser cleaning method, including adjusting the average output power of laser cleaning machine, repetition, defeated
The spot size and sweep speed of laser pulse width, output out adjust the hot spot and act on spheroidal graphite cast-iron surface, swashed
Light cleaning.
Preferably, the light source of the laser cleaning machine is LD light-pumped solid state laser；
The output wavelength of the LD light-pumped solid state laser is 1064nm.
The average output power of the laser cleaning machine is adjusted to 180-220W.
The repetition of the laser cleaning machine is adjusted to 8-12kHz.
The laser pulse width of the laser cleaning machine output is adjusted to 60-100ns.
Further, the hot spot of the laser cleaning machine output is circular light spot, and the diameter adjustment of the circular light spot is
0.5-1mm；
It adjusts the laser cleaning machine and exports a string of the circular light spots formation, one linear light spot.
Preferably, the sweep speed for adjusting the linear light spot is 3-4cm/s, acts on the cleaning object surface.
Preferably, repeated multiple times cleaning is carried out to the one side of the spheroidal graphite cast-iron, until detecting the ball by EDS technology
The carbon component content of black Cast Iron Surface meets the requirements.
The spheroidal graphite cast-iron carbon contents index after cleaning is determined with specific reference to the environment that spheroidal graphite cast-iron uses, and makes to pass through
The carbon component actual content value on the spheroidal graphite cast-iron surface after the cleaning that EDS technology detects, it is corresponding lower than the spheroidal graphite cast-iron to use
Carbon content index under environment.
Preferably, time interval is greater than 1min twice for the front and back being cleaned multiple times.
Preferably, after the spheroidal graphite cast-iron one side cleaning is completed, the spheroidal graphite cast-iron is rotated manually, is carried out remaining unclear
The cleaning washed one's face.
The specific embodiment provided according to the present invention, the invention discloses following technical effects:
The present invention provides a kind of spheroidal graphite cast-iron surface laser cleaning methods, are swashing for solid state laser by selecting light source
Light cleaning machine, adjust the average output power of laser cleaning machine, repetition, output laser pulse width, act on cleaning object surface
Spot size and sweep speed, realize scanning laser spheroidal graphite cast-iron surface graphite particle is effectively removed.Also, by swashing
Optical scanning is cleaned, and is promoted cleaning efficiency, and is guaranteed while removing spheroidal graphite cast-iron surface graphite particle, is effectively avoided pair
The damage of spheroidal graphite cast-iron matrix.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The object of the present invention is to provide one kind can effectively remove spheroidal graphite cast-iron surface graphite particle, while spheroidal graphite being avoided to cast
The high efficiency spheroidal graphite cast-iron surface laser cleaning method of iron-based bulk damage
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, With reference to embodiment
The present invention is described in further detail.
Embodiment 1:
One piece of spheroidal graphite cast-iron sample of arbitrary shape is taken, is cleaned using following technique:
Selection laser cleaning machine light source is LD light-pumped solid state laser, output wavelength 1064nm；
The average output power for adjusting laser cleaning machine is 180W；
The repetition for adjusting laser cleaning machine is 8kHz；
The pulsewidth for adjusting the output laser of laser cleaning machine is 60ns；
Adjusting spot size of the laser cleaning machine output laser action on cleaning object surface is 0.5mm；
Adjust laser cleaning machine output line hot spot；
Using linear beam spot scans spheroidal graphite cast-iron surface, sweep speed 3cm/s is cast under the action of scanning laser
Ironing surface graphite particle is detached from cast iron；
Spheroidal graphite cast-iron is cleaned twice by above method, the time interval cleaned twice is greater than 1min.
Sample after cleaning is placed under scanning electron microscope and observes, and surface spherical graphite removes substantially.
Embodiment 2:
One piece of spheroidal graphite cast-iron sample of arbitrary shape is taken, is cleaned using following technique:
Selection laser cleaning machine light source is LD light-pumped solid state laser, output wavelength 1064nm；
The average output power for adjusting laser cleaning machine is 220W；
The repetition for adjusting laser cleaning machine is 12kHz；
The pulsewidth for adjusting the output laser of laser cleaning machine is 100ns；
Adjusting spot size of the laser cleaning machine output laser action on cleaning object surface is 1mm；
Adjust laser cleaning machine output line hot spot；
Using linear beam spot scans spheroidal graphite cast-iron surface, sweep speed 4cm/s, under the action of scanning laser, cast iron
The graphite particle on surface is detached from cast iron；
Spheroidal graphite cast-iron is cleaned twice by above method, the time interval cleaned twice is greater than 1min.
Sample after cleaning is placed under scanning electron microscope and observes, and surface spherical graphite removes substantially.
Embodiment 3:
One piece of spheroidal graphite cast-iron sample of arbitrary shape is taken, is cleaned using following technique:
Selection laser cleaning machine light source is LD light-pumped solid state laser, output wavelength 1064nm；
The average output power for adjusting laser cleaning machine is 200W；
The repetition for adjusting laser cleaning machine is 10kHz；
The pulsewidth for adjusting the output laser of laser cleaning machine is 80ns；
Adjusting spot size of the laser cleaning machine output laser action on cleaning object surface is 0.5mm；
Adjust laser cleaning machine output line hot spot；
By rotating spheroidal graphite cast-iron manually, the linear light spot for exporting laser cleaning machine can act on spheroidal graphite cast-iron just and need
The face to be cleaned.
Using linear beam spot scans spheroidal graphite cast-iron surface, sweep speed 3cm/s, under the action of scanning laser, cast iron
The graphite particle on surface is detached from cast iron；
It is cleaned twice by the same face of the above method to spheroidal graphite cast-iron, the time interval cleaned twice is greater than
1min；
Sample after cleaning is placed under scanning electron microscope and observes, and surface spherical graphite removes substantially.
The present invention provides a kind of spheroidal graphite cast-iron surface laser cleaning methods.It is swashing for solid state laser by selecting light source
Light cleaning machine adjusts the parameters such as laser pulse frequency, pulsewidth, mean power and the beam spot scans rate of laser cleaning machine, realizes
Spheroidal graphite cast-iron surface graphite particle effectively removed.And have the characteristics that selective removal, it can be in removal graphite particle
The damage of spheroidal graphite cast-iron matrix is effectively avoided simultaneously.This method is simple and easy, imitates to the removal of spheroidal graphite cast-iron surface graphite particle
Rate is high.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For system disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of spheroidal graphite cast-iron surface laser cleaning method, which is characterized in that the average output work including adjusting laser cleaning machine
Rate, repetition, the laser pulse width of output, output spot size and sweep speed, adjust the hot spot and act on spheroidal graphite cast-iron
Surface carries out laser cleaning.
2. a kind of spheroidal graphite cast-iron surface laser cleaning method according to claim 1, which is characterized in that the laser cleaning
The light source of machine is LD light-pumped solid state laser；
The output wavelength of the LD light-pumped solid state laser is 1064nm.
3. a kind of spheroidal graphite cast-iron surface laser cleaning method according to claim 1, which is characterized in that the laser cleaning
The average output power of machine is adjusted to 180-220W.
4. a kind of spheroidal graphite cast-iron surface laser cleaning method according to claim 1, which is characterized in that the laser cleaning
The repetition of machine is adjusted to 8-12kHz.
5. a kind of spheroidal graphite cast-iron surface laser cleaning method according to claim 1, which is characterized in that the laser cleaning
The laser pulse width of machine output is adjusted to 60-100ns.
6. a kind of spheroidal graphite cast-iron surface laser cleaning method according to claim 1, which is characterized in that the laser cleaning
The hot spot of machine output is circular light spot, and the diameter adjustment of the circular light spot is 0.5-1mm；
It adjusts the laser cleaning machine and exports a string of the circular light spots formation, one linear light spot.
7. a kind of spheroidal graphite cast-iron surface laser cleaning method according to claim 6, which is characterized in that adjust the linear light
The sweep speed of spot is 3-4cm/s, acts on the cleaning object surface.
8. a kind of spheroidal graphite cast-iron surface laser cleaning method described in -7 according to claim 1, which is characterized in that the spheroidal graphite
The one side of cast iron carries out repeated multiple times cleaning, until being accorded with by the carbon component content that EDS technology detects the spheroidal graphite cast-iron surface
It closes and requires.
9. a kind of spheroidal graphite cast-iron surface laser cleaning method according to claim 8, which is characterized in that be cleaned multiple times
Front and back twice time interval be greater than 1min.
10. a kind of spheroidal graphite cast-iron surface laser cleaning method according to claim 8, which is characterized in that the spheroidal graphite casting
After iron one side cleaning is completed, the spheroidal graphite cast-iron is rotated manually, carries out the cleaning of remaining non-cleaning surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910182262.7A CN109821820B (en) | 2019-03-11 | 2019-03-11 | Laser cleaning method for surface of nodular cast iron |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910182262.7A CN109821820B (en) | 2019-03-11 | 2019-03-11 | Laser cleaning method for surface of nodular cast iron |
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| CN109821820A true CN109821820A (en) | 2019-05-31 |
| CN109821820B CN109821820B (en) | 2021-02-05 |
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| CN201910182262.7A Active CN109821820B (en) | 2019-03-11 | 2019-03-11 | Laser cleaning method for surface of nodular cast iron |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111282921A (en) * | 2020-03-07 | 2020-06-16 | 深圳市汇泽激光科技有限公司 | Method for cleaning paper pulp molding product mold |
| CN112475505A (en) * | 2020-11-24 | 2021-03-12 | 爱发科电子材料（苏州）有限公司 | Welding structure and welding method for target and back plate |
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| CN85103734A (en) * | 1985-05-17 | 1986-11-19 | 罗伯特·兰根 | Remove the method for metal surface dirt, particularly corrosion |
| JPH02197588A (en) * | 1989-01-27 | 1990-08-06 | Sintokogio Ltd | Method for removing scale or rust from steel product |
| EP1340556A2 (en) * | 2002-03-01 | 2003-09-03 | Foundation for Research and Technology-Hellas (FO.R.T.H.), Institute of Electronic Structure and Laser | A method and device for cleaning surfaces using temporarily coincidental laser pulses of two different wavelengths |
| US6747243B1 (en) * | 2002-12-24 | 2004-06-08 | Novellus Systems, Inc. | Spot cleaning of particles after inspection |
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| CN107234106A (en) * | 2017-07-21 | 2017-10-10 | 新兴铸管股份有限公司 | The device cleaned to ductile iron pipe or pipe die outer wall |
| CN107639083A (en) * | 2017-11-07 | 2018-01-30 | 武汉翔明激光科技有限公司 | A kind of aluminium alloy anode oxide film dry laser cleaning equipment and cleaning method |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103734A (en) * | 1985-05-17 | 1986-11-19 | 罗伯特·兰根 | Remove the method for metal surface dirt, particularly corrosion |
| JPH02197588A (en) * | 1989-01-27 | 1990-08-06 | Sintokogio Ltd | Method for removing scale or rust from steel product |
| EP1340556A2 (en) * | 2002-03-01 | 2003-09-03 | Foundation for Research and Technology-Hellas (FO.R.T.H.), Institute of Electronic Structure and Laser | A method and device for cleaning surfaces using temporarily coincidental laser pulses of two different wavelengths |
| US6747243B1 (en) * | 2002-12-24 | 2004-06-08 | Novellus Systems, Inc. | Spot cleaning of particles after inspection |
| WO2015107325A1 (en) * | 2014-01-15 | 2015-07-23 | Woodrow Scientific Limited | Methods and apparatus for laser cleaning |
| CN107234106A (en) * | 2017-07-21 | 2017-10-10 | 新兴铸管股份有限公司 | The device cleaned to ductile iron pipe or pipe die outer wall |
| CN107639083A (en) * | 2017-11-07 | 2018-01-30 | 武汉翔明激光科技有限公司 | A kind of aluminium alloy anode oxide film dry laser cleaning equipment and cleaning method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111282921A (en) * | 2020-03-07 | 2020-06-16 | 深圳市汇泽激光科技有限公司 | Method for cleaning paper pulp molding product mold |
| CN112475505A (en) * | 2020-11-24 | 2021-03-12 | 爱发科电子材料（苏州）有限公司 | Welding structure and welding method for target and back plate |
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| CN109821820B (en) | 2021-02-05 |
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