CN105624671A - Preparation method for alloy ceramic film, mobile terminal shell and mobile terminal - Google Patents
Preparation method for alloy ceramic film, mobile terminal shell and mobile terminal Download PDFInfo
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- CN105624671A CN105624671A CN201510128021.6A CN201510128021A CN105624671A CN 105624671 A CN105624671 A CN 105624671A CN 201510128021 A CN201510128021 A CN 201510128021A CN 105624671 A CN105624671 A CN 105624671A
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Abstract
The invention discloses a preparation method for an alloy ceramic film, a mobile terminal shell and a mobile terminal, wherein the preparation method for the alloy ceramic film comprises the following step: blowing specified reaction gas to the surface of an alloy board while carrying out laser process treatment on the surface of the alloy board by use of a laser beam, thereby forming the alloy ceramic film on the surface of the alloy board. According to the technical scheme, laser treatment is directly carried out on the surface of the alloy board, and the specified reaction gas is blown, so that the alloy ceramic film is formed on the surface of the alloy board; the alloy ceramic film has a good hand feeling, high hardness, good wear resistance, corrosion resistance, and can achieve good decoration effect; and the preparation method for the alloy ceramic film is simple, and a coating technology is not required to be carried out on the alloy board, so that technological processes are reduced, and the environment is effectively protected.
Description
Technical field
The present invention relates to field of terminal technology, in particular to the preparation method of a kind of ceramal thin film, a kind of mobile terminal case and a kind of mobile terminal.
Background technology
At present, the appearance member of mobile terminal is substantially all the process for treating surface such as employing anodic oxidation, spraying, electrophoretic deposition, vacuum coating and carries out surface colour, thus reaching decoration functions, but, current surface colour technology energy consumption is high or environmental pollution is serious, in addition, the process for treating surface such as anodic oxidation, spraying, electrophoretic deposition, vacuum coating broadly fall into external coating technology, and pretreatment process is loaded down with trivial details, and thin film is weak with basal body binding force, wearability is relatively poor, and texture is very bad.
Therefore, how proposing a kind of ceramal thin film can produced and have good texture, the preparation method of the ceramal thin film that can simplify again pretreatment process and preparation technology thereof becomes current problem demanding prompt solution.
Summary of the invention
The present invention is based on the problems referred to above, it is proposed that a kind of new technical scheme, can produce and have the ceramal thin film that good texture, combination property are good again, can simplify again pretreatment process and preparation technology thereof.
In view of this, the preparation method that the present invention proposes a kind of ceramal thin film, including: when the surface of laser beam alloy sheet material carries out laser PROCESS FOR TREATMENT, surface to described sheet alloy blows appointment reacting gas, so that the surface of described sheet alloy forms ceramal thin film.
In this technical scheme, the surface using laser beam alloy sheet material is made directly laser PROCESS FOR TREATMENT, other reaction materials need not be covered on the surface of sheet alloy, then the reacting gas specified it is blown into the surface of sheet alloy, the surface making sheet alloy forms ceramal thin film, owing to sheet alloy is made up of Determination of multiple metal elements, use laser beam that this sheet alloy is carried out ablation, change composition and the micro structure of sheet alloy superficial film, and simultaneously again with the reacting gas generation chemical reaction specified, thus at the Surface Creation ceramal thin film of sheet alloy. by this kind of situ synthesis techniques, make the ceramal thin film generated higher with sheet alloy adhesion, specifically, adhesion between has exceeded 30MPa, and by the ceramal thin film soft handle that this kind of method is formed, color and luster is noble, and film hardness is high, wearability is good, and corrosion resistance is strong, in addition, owing to the preparation method of this kind of ceramal thin film need not cover other reaction materials on the surface of sheet alloy, so effectively reducing problem of environmental pollution, and this method is simple to operate, production efficiency is high, specifically, the production and processing time is less than the 1/5 of anode oxidation process.
In technique scheme, preferably, when the described surface at laser beam alloy sheet material carries out laser PROCESS FOR TREATMENT, surface to described sheet alloy blows appointment reacting gas, so that the surface of described sheet alloy forms the concrete steps of ceramal thin film, including: when the surface of described sheet alloy is carried out laser PROCESS FOR TREATMENT with first condition by described laser beam, surface to described sheet alloy blows appointment reacting gas, so that the surface of described sheet alloy forms the first ceramal thin film; When the surface of described first ceramal thin film is carried out laser technique with second condition by described laser beam, surface to described first ceramal thin film blows described appointment reacting gas, so that the surface of described first ceramal thin film forms the second ceramal thin film; Wherein, described first condition includes the first power, the first tolerance and the first scanning speed, described second condition includes the second power, the second tolerance and the second scanning speed, and described first power is less than described second power, described first tolerance is less than described second tolerance, and described first scanning speed is more than described second scanning speed.
In this technical scheme, the step generating ceramal thin film is multistep, specifically, laser beam is at the first power, when the first tolerance and the first scanning speed, the surface of alloy sheet material carries out first time laser PROCESS FOR TREATMENT, and blow appointment reacting gas simultaneously, the surface at sheet alloy is made to form the first ceramal thin film, wherein, the the first ceramal thin film formed is relatively rough, color and luster is not as uniform, so needing to adjust laser beam to the second power, when the second tolerance and the second scanning speed, the the first ceramal thin film formed is carried out second time laser PROCESS FOR TREATMENT, the the second ceramal thin film formed is made to have the color pool of noble quality, and the hardness of thin film is high, wearability is good, corrosion resistance is strong, wherein, first power is less than the second power, first tolerance is less than the second tolerance, first scanning speed is more than the second scanning speed, that is, when the surface of alloy sheet material carries out multiple-step form laser scanning, first alloy sheet material carries out the low tolerance of low-power and quickly scans, then high power high tolerance slow scanning is being carried out, so that the ceramal thin film formed has different levels sense, and the ceramal thin film soft handle formed, color and luster is noble, film hardness is strong, wearability is good and corrosion resistance is strong, wherein, first power, second power, first tolerance, second tolerance, first scanning speed, the size of the second scanning speed is specifically according to the kind of sheet alloy, gaseous species and laser species etc. and determine.
In technique scheme, it is preferable that described sheet alloy includes one below or its combination in any: titanium alloy plate, aluminum alloy plate materials, magnesium alloy plate, zircaloy sheet material or stainless steel materials.
In this technical scheme, sheet alloy can be made up of Determination of multiple metal elements, as long as it can under laser action, chemical reaction is occurred to generate different metallic compounds from reacting gas (such as oxygen, nitrogen, acetylene, pure air etc.), specifically, this sheet alloy can be titanium alloy plate, aluminum alloy plate materials, magnesium alloy plate, zircaloy sheet material, stainless steel materials one or more, such as titanium/aluminium alloy, rustless steel/aluminium alloy etc.
In technique scheme, it is preferable that described appointment reacting gas includes one below or its combination in any: oxygen, nitrogen, acetylene or air, wherein, the flow rates of described appointment reacting gas is between 0.1 milliliter to 1000 milliliters per minute per minute. in this technical scheme, reacting gas can be specified according to conversion, to obtain the ceramal thin film of different colours, such as, need the ceramal thin film of class sky sky blue, then the titanium alloy of optional TC4 model is as sheet alloy, and adopt oxygen, the mixing gas of a certain proportion of nitrogen and acetylene carries out situ synthesis techniques as appointment reacting gas, to form the ceramal thin film of class sky sky blue, wherein appointment reacting gas can be the mixture of multiple gases, can also be the gas of single kind, preferably, the pure air in right amount with certain humidity can be added in specifying reacting gas.
In technique scheme, it is preferable that described laser technique includes pulse laser, and the wavelength of described pulse laser is between 10 nanometers to 1650 nanometers.
In technique scheme, preferably, the parameter of described laser technique also includes: described laser technique also includes: spot diameter, output, pulse width, pulse frequency, laser light incident angle and scanning speed, wherein, described spot diameter 0.5 millimeter to 5 millimeters, output is between 0.1 watt to 1000 watts, described pulse width is between 0 to 130 nanosecond, described pulse frequency is in 5 KHz to 30 KHz, described laser light incident angle is between 5 degree to 45 degree, described scanning speed is between 0.1 millimeter to 10 millimeters per second per second.
In this technical scheme, alloy is made up of Determination of multiple metal elements, it is under laser ablation energy, chemical reaction is occurred to generate different metallic compounds from specifying reacting gas (such as oxygen, nitrogen, pure air etc.), therefore based on principles such as the refraction of light and interference, color and gloss etc. is included for obtaining better surface tactile sensation, laser incident angle can be changed to change the relative angle of laser plasma incident direction and sheet alloy surface, carry out induction ablation metallic element, to change composition and the micro structure of superficial film. Preferably, laser light incident angle is between 5 degree to 45 degree, additionally, can according to the appearance requirement difference of ceramal thin film, the suitable spot diameter regulating laser, output, and pulse width and scanning speed. Preferably, spot diameter is at 0.5 millimeter to 5 millimeter, output is between 0.1 watt to 1000 watts, pulse width is between 0 to 130 nanosecond, pulse frequency is in 5 KHz to 30 KHz, scanning speed is between 0.1 millimeter to 10 millimeters per second per second, wherein, by the position relationship between the clamper of the face shaping of sheet alloy and clamping sheet alloy, laser light incident angle is adjusted.
In technique scheme, it is preferable that the protective gas of described laser technique is noble gas.
In this technical scheme, when that carries out laser technique, if air humidity is bigger, may select carry out under inert gas shielding painted, this be due to noble gas pole not easily with other material occur send out should, it is preferable that this noble gas is argon.
In technique scheme, it is preferable that the thickness of described ceramal thin film is in the scope of 1 micron to 20 micron.
In this technical scheme, the thickness of the ceramal thin film produced by method in this is between 1 micron to 20 micron, wherein, the concrete thickness of ceramal thin film and alloy material, laser species, laser technique parameter etc. relevant.
A second aspect of the present invention proposes a kind of mobile terminal case, including the ceramal thin film that the preparation method of the ceramal thin film used described in any of the above-described embodiment is formed.
Second aspect present invention embodiment proposes a kind of mobile terminal case, there is the ceramal thin film that the preparation method of the ceramal thin film that first aspect present invention any embodiment provides is formed, therefore this mobile terminal case has whole beneficial effects of the ceramal thin film of the preparation method formation of the ceramal thin film that any of the above-described embodiment provides, and does not repeat them here.
A third aspect of the present invention embodiment proposes a kind of mobile terminal, contains the mobile terminal case described in above-mentioned second aspect embodiment.
The mobile terminal that third aspect present invention embodiment provides, has the mobile terminal case that second aspect present invention embodiment provides, and therefore this mobile terminal has the whole beneficial effect of mobile terminal case that above-mentioned second aspect embodiment provides.
Accompanying drawing explanation
Fig. 1 illustrates the schematic flow sheet of the preparation method of the ceramal thin film provided according to one embodiment of present invention;
Fig. 2 illustrates the machining sketch chart of the preparation method of the ceramal thin film provided according to one embodiment of present invention;
Fig. 3 illustrates the streamline machining sketch chart of the preparation method of the ceramal thin film provided according to one embodiment of present invention.
Detailed description of the invention
In order to be more clearly understood that the above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail. It should be noted that when not conflicting, embodiments herein and the feature in embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding the present invention; but; the present invention can also adopt other to be different from other modes described here to implement, and therefore, protection scope of the present invention is by the restriction of following public specific embodiment.
For knowing the particular content of the explanation present invention, described in relate to gas volume and all measure in normal conditions, standard state and temperature are zero degrees celsius, and atmospheric pressure is the state of a normal atmosphere.
As shown in Figure 1, the preparation method that the present invention proposes a kind of ceramal thin film, including: step 102, when the surface of laser beam alloy sheet material carries out laser PROCESS FOR TREATMENT, surface to described sheet alloy blows appointment reacting gas, so that the surface of described sheet alloy forms ceramal thin film.
Specifically, as shown in Figures 2 and 3, choose sheet alloy 1 for matrix material, and this sheet alloy 1 is processed into the shape of handset shell, and for realize the continuous radium-shine painted of multiple handset shell, can be arranged on streamline by the handset shell of computer program rotation by multiple, this preferred rotating circular disk streamline of streamline 2, and this handset shell body is positioned at the lower section of laser ablation plasma generator 3, wherein, this laser ablation plasma generator 3 sends laser beam, while laser beam direct ablation handset shell surface, appointment reacting gas is blowed to the surface of this handset shell by the gas blow pipe 4 on streamline, so that the surface of this handset shell directly forms ceramal thin film. wherein, this laser ablation plasma generator 3 includes beam expander 31, flat board optical gate 32 and condenser lens 33, this laser beam passes sequentially through this beam expander 31, flat board optical gate 32 and condenser lens 33 and is irradiated to handset shell surface, and this handset shell surface is carried out ablation, and for strengthening the efficiency of laser colouring and avoiding extraneous contamination etc., preferably, a transparent baffle 5 is set between condenser lens 33 and handset shell surface, as protective cover made by glass. by the ceramal thin film soft handle that this kind of method is formed, color and luster is noble, and film hardness is high, and wearability is good, and corrosion resistance is strong, in addition, owing to the preparation method of this kind of ceramal thin film need not cover other reaction materials on the surface of sheet alloy, so effectively reducing problem of environmental pollution, and this method is simple to operate, production efficiency is high, specifically, the production and processing time is less than the 1/5 of anode oxidation process, wherein, the ultimate principle of situ synthesis techniques is to utilize element or chemicals that chemical reaction occurs under certain condition, one or more ceramic phase particles of in-situ preparation on alloy substrate, to reach to improve the purpose of alloy property, composite by this preparation, the intermiscibility of matrix and reinforcement is good, interface bond strength is high, eliminate the pretreatment process that other complex technique is loaded down with trivial details simultaneously, simplify preparation technology.
In technique scheme, preferably, when the described surface at laser beam alloy sheet material carries out laser PROCESS FOR TREATMENT, surface to described sheet alloy blows appointment reacting gas, so that the surface of described sheet alloy forms the concrete steps of ceramal thin film, including: when the surface of described sheet alloy is carried out laser PROCESS FOR TREATMENT with first condition by described laser beam, surface to described sheet alloy blows appointment reacting gas, so that the surface of described sheet alloy forms the first ceramal thin film; When the surface of described first ceramal thin film is carried out laser technique with second condition by described laser beam, surface to described first ceramal thin film blows described appointment reacting gas, so that the surface of described first ceramal thin film forms the second ceramal thin film; Wherein, described first condition includes the first power, the first tolerance and the first scanning speed, described second condition includes the second power, the second tolerance and the second scanning speed, and described first power is less than described second power, described first tolerance is less than described second tolerance, and described first scanning speed is more than described second scanning speed.
In this technical scheme, the step generating ceramal thin film is multistep, specifically, laser beam is at the first power, when the first tolerance and the first scanning speed, the surface of alloy sheet material carries out first time laser PROCESS FOR TREATMENT, and blow appointment reacting gas simultaneously, the surface at sheet alloy is made to form the first ceramal thin film, wherein, the the first ceramal thin film formed is relatively rough, color and luster is not as uniform, so needing to adjust laser beam to the second power, when the second tolerance and the second scanning speed, the the first ceramal thin film formed is carried out second time laser PROCESS FOR TREATMENT, the the second ceramal thin film formed is made to have the color pool of noble quality, and the hardness of thin film is high, wearability is good, corrosion resistance is strong, wherein, first power is less than the second power, first tolerance is less than the second tolerance, first scanning speed is more than the second scanning speed, that is, when the surface of alloy sheet material carries out multiple-step form laser scanning, first alloy sheet material carries out the low tolerance of low-power and quickly scans, then high power high tolerance slow scanning is being carried out, so that the ceramal thin film formed has different levels sense, and the ceramal thin film soft handle formed, color and luster is noble, film hardness is strong, wearability is good and corrosion resistance is strong, wherein, first power, second power, first tolerance, second tolerance, first scanning speed, the size of the second scanning speed is specifically according to the kind of sheet alloy, gaseous species and laser species etc. and determine, and the program is at least two-step laser colouring scanning, do not mean that only twice sweep, concrete laser colouring scanning times is by concrete sheet alloy, gaseous species and laser species and determine.
In technique scheme, it is preferable that described sheet alloy includes one below or its combination in any: titanium alloy plate, aluminum alloy plate materials, magnesium alloy plate, zircaloy sheet material or stainless steel materials.
In this technical scheme, sheet alloy can be made up of Determination of multiple metal elements, as long as it can under laser action, chemical reaction is occurred to generate different metallic compounds from reacting gas (such as oxygen, nitrogen, acetylene, pure air etc.), this sheet alloy can be titanium alloy plate, aluminum alloy plate materials, magnesium alloy plate, zircaloy sheet material, stainless steel materials one or more, such as titanium/aluminum alloy plate materials, rustless steel/aluminum alloy plate materials etc.
In technique scheme, it is preferable that described appointment reacting gas includes one below or its combination in any: oxygen, nitrogen, acetylene or air; Wherein, the flow rates of described appointment reacting gas is between 0.1 milliliter to 1000 milliliters per minute per minute.
In this technical scheme, reacting gas can be specified according to conversion, to obtain the ceramal thin film of different colours, such as, need the ceramal thin film of class sky sky blue, then the titanium alloy of optional TC4 model is as sheet alloy, and adopt oxygen, the mixing gas of a certain proportion of nitrogen and acetylene carries out situ synthesis techniques as appointment reacting gas, to form the ceramal thin film of class sky sky blue, wherein appointment reacting gas can be the mixture of multiple gases, can also be the gas of single kind, preferably, the pure air in right amount with certain humidity can be added in specifying reacting gas.
In technique scheme, it is preferable that described laser technique includes pulse laser, and the wavelength of described pulse laser is between 10 nanometers to 1650 nanometers.
In technique scheme, preferably, described laser technique also includes: spot diameter, output, pulse width, pulse frequency, laser light incident angle and scanning speed, wherein, described spot diameter 0.5 millimeter to 5 millimeters, output is between 0.1 watt to 1000 watts, described pulse width is between 0 to 130 nanosecond, described pulse frequency is in 5 KHz to 30 KHz, described laser light incident angle is between 5 degree to 45 degree, and described scanning speed is between 0.1 millimeter to 10 millimeters per second per second.
In this technical scheme, alloy is made up of Determination of multiple metal elements, it is under laser ablation energy, chemical reaction is occurred to generate different metallic compounds from reacting gas (such as oxygen, nitrogen, pure air etc.), therefore based on principles such as the refraction of light and interference, color and gloss etc. is included for obtaining better surface tactile sensation, laser incident angle can be changed to change the relative angular relationship of laser plasma incident direction and sample surfaces, carry out induction ablation metallic element, to change composition and the micro structure of superficial film. Preferably, laser light incident angle is between 5 degree to 45 degree, additionally, can according to the appearance requirement difference of ceramal thin film, the suitable spot diameter regulating laser, output, and pulse width and scanning speed. Such as, the ceramal thin film of royalblue is formed on the surface of titanium alloy plate, the titanium alloy plate specifying model need to be selected and blow appointment reacting gas, and by the spot diameter adjustment of near-infrared laser light beam between 0.5 millimeter to 3.5 millimeter, the output adjustment of laser beam is between 2 watts to 50 watts, and the pulse width of laser beam is adjusted to less than 130 nanoseconds with controlled by scanning speed between 1.0 millimeters to 5.5 millimeters per second per second.
Wherein, as shown in Figure 3, the size of laser light incident angle �� is adjusted by the position relationship of sheet alloy outer surface and the centrage of laser ablation plasma generator, such as, laser light incident angle is 45 degree, then need to adjust laser ablation plasma device, the outer surface of its centrage with sheet alloy is formed 45 degree of angles and guarantees that laser light incident angle is 45 degree.
In technique scheme, it is preferable that the protective gas of described laser technique is noble gas.
In this technical scheme, when that carries out laser technique, if air humidity is bigger, may select carry out under inert gas shielding painted, this be due to noble gas pole not easily with other material occur send out should, it is preferable that this noble gas is argon.
In technique scheme, it is preferable that the thickness of described ceramal thin film is in the scope of 1 micron to 20 micron.
In this technical scheme, the thickness of the ceramal thin film produced by method in this is between 1 micron to 20 micron, wherein, the concrete thickness of ceramal thin film and alloy material, laser species, laser technique parameter etc. relevant.
Wherein, the specific embodiment of the preparation method of ceramal thin film is:
Embodiment 1:
Selecting model is that the aluminium alloy of Al7075 is as sheet alloy, it is shaped processing to this sheet alloy according to the Structural Design Requirement of cell phone appearance part, it is polished cleaning to it again, then on the surface of this sheet alloy, make milky ceramal thin film, specifically, use equipment as shown in Figures 2 and 3, the method preparing this ceramal thin film is: first, adopt the purity oxygen higher than 3N and the purity nitrogen higher than 4N as specifying reacting gas (wherein, 3N represents that quality purity is 99.9%, 4N represents that quality purity is 99.99%), and in mixing gas, oxygen volume content is not less than 85%, and the flow rates of this mixing gas is 30 milliliters to 40 milliliters per minute per minute, secondly, process conditions based on the chemical composition of alloy of Al7075 and the preparation method of ceramal thin film, selecting wavelength is that the green outer laser between 495 nanometers��570 nanometers is as LASER Light Source, and the output of green outer laser is between 20 to 150 watts, pulse width is less than 130 nanoseconds, scanning speed is between 1.5 millimeters to 8.5 millimeters per second per second, spot diameter is between 0.5 millimeter to 5 millimeter, laser incident angle is between 5 degree to 15 degree, and this sheet alloy is carried out multiple-step form laser colouring scanning, specifically, laser beam first carries out laser colouring scanning with the output of 20 watts and the speed of 8.5 millimeters per second, then laser colouring scanning is carried out with the speed of the output of 150 watts and 1.5 millimeters per second. so that define milky ceramal thin film on this sheet alloy, the thickness of this ceramal thin film is in the scope of 3 microns to 8 microns.
Wherein, the chemical composition of aluminium alloy Al7075, it is specifically shown in shown in following table:
Embodiment 2:
The titanium alloy selecting model to be TC4 or titanium alloy that model is TB6 are as sheet alloy, it is shaped processing to this sheet alloy according to the Structural Design Requirement of cell phone appearance part, it is polished cleaning to it again, then on the surface of this sheet alloy, make the ceramal thin film of royalblue, use equipment as shown in Figures 2 and 3, specifically, the method preparing this ceramal thin film is: first, adopt the purity oxygen higher than 3N and acetylene as specifying reacting gas, and in mixing gas, oxygen volume content is not less than 95%, and the flow rates of this mixing gas is 10 milliliters to 50 milliliters per minute per minute, pure air can also be adopted as specifying reacting gas, and the flow rates of this gas is 10 milliliters to 50 milliliters per minute per minute, secondly, process conditions based on the chemical composition of titanium alloy TC 4 or titanium alloy T B6 and the preparation method of ceramal thin film, select near-infrared laser (such as, wavelength is the laser of 1030nm) as LASER Light Source, and the output of this near-infrared laser is between 2 watts to 50 watts, pulse width is less than 130 nanoseconds, scanning speed is between 1.0 millimeters to 5.5 millimeters per second per second, pulse frequency is between 5 KHz-30 KHz, spot diameter is between 0.5 millimeter to 3.5 millimeter, laser incident angle is between 5 degree to 15 degree, and this sheet alloy is carried out multiple-step form laser colouring scanning, specifically, laser beam first carries out laser colouring scanning with the output of 2 watts and the speed of 5.5 millimeters per second, then laser colouring scanning is carried out with the speed of the output of 50 watts and 0.5 millimeter per second. so that define the ceramal thin film of sapphire on this sheet alloy, the thickness of this ceramal thin film is in the scope of 3 microns to 6 microns.
Wherein, the chemical composition of titanium alloy TC 4 and titanium alloy T B6, it is specifically shown in shown in following table:
A second aspect of the present invention proposes a kind of mobile terminal case, contains the ceramal thin film that the preparation method of the ceramal thin film described in above-mentioned first aspect any embodiment is formed.
Second aspect present invention embodiment proposes a kind of mobile terminal case, there is the ceramal thin film that the preparation method of the ceramal thin film that first aspect present invention any embodiment provides is formed, therefore this mobile terminal case has whole beneficial effects of the ceramal thin film of the preparation method formation of the ceramal thin film that any of the above-described embodiment provides, and does not repeat them here.
A third aspect of the present invention embodiment proposes a kind of mobile terminal, contains the mobile terminal case described in above-mentioned second aspect embodiment.
The mobile terminal that third aspect present invention embodiment provides, has the mobile terminal case that second aspect present invention embodiment provides, and therefore this mobile terminal has the whole beneficial effect of mobile terminal case that above-mentioned second aspect embodiment provides.
The foregoing is only embodiments of the invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. the preparation method of a ceramal thin film, it is characterised in that including:
When the surface of laser beam alloy sheet material carries out laser PROCESS FOR TREATMENT, the surface to described sheet alloy blows appointment reacting gas, so that the surface of described sheet alloy forms ceramal thin film.
2. the preparation method of ceramal thin film according to claim 1, it is characterized in that, when the described surface at laser beam alloy sheet material carries out laser PROCESS FOR TREATMENT, surface to described sheet alloy blows appointment reacting gas, so that the surface of described sheet alloy forms the concrete steps of ceramal thin film, including:
When the surface of described sheet alloy is carried out laser PROCESS FOR TREATMENT with first condition by described laser beam, the surface to described sheet alloy blows appointment reacting gas, so that the surface of described sheet alloy forms the first ceramal thin film;
When the surface of described first ceramal thin film is carried out laser technique with second condition by described laser beam, surface to described first ceramal thin film blows described appointment reacting gas, so that the surface of described first ceramal thin film forms the second ceramal thin film;
Wherein, described first condition includes the first power, the first tolerance and the first scanning speed, described second condition includes the second power, the second tolerance and the second scanning speed, and described first power is less than described second power, described first tolerance is less than described second tolerance, and described first scanning speed is more than described second scanning speed.
3. the preparation method of ceramal thin film according to claim 2, it is characterised in that described sheet alloy includes one below or its combination in any:
Titanium alloy plate, aluminum alloy plate materials, magnesium alloy plate, zircaloy sheet material or stainless steel materials.
4. the preparation method of ceramal thin film according to claim 2, it is characterised in that described appointment reacting gas includes one below or its combination in any:
Oxygen, nitrogen, acetylene or air;
Wherein, the flow rates of described appointment reacting gas is between 0.1 milliliter to 1000 milliliters per minute per minute.
5. the preparation method of ceramal thin film according to claim 2, it is characterised in that described laser technique includes pulse laser, and the wavelength of described pulse laser is between 10 nanometers to 1650 nanometers.
6. the preparation method of ceramal thin film according to claim 5, it is characterized in that, described laser technique also includes: spot diameter, output, pulse width, pulse frequency, laser light incident angle and scanning speed, wherein, described spot diameter 0.5 millimeter to 5 millimeters, output is between 0.1 watt to 1000 watts, described pulse width is between 0 to 130 nanosecond, described pulse frequency is in 5 KHz to 30 KHz, described laser light incident angle is between 5 degree to 45 degree, described scanning speed is between 0.1 millimeter to 10 millimeters per second per second.
7. the preparation method of ceramal thin film according to claim 2, it is characterised in that the protective gas of described laser technique is noble gas.
8. the preparation method of ceramal thin film according to any one of claim 1 to 7, it is characterised in that the thickness of described ceramal thin film is in the scope of 1 micron to 20 micron.
9. a mobile terminal case, it is characterised in that including: use the ceramal thin film that the preparation method of the ceramal thin film as according to any one of claim 1 to 8 is formed.
10. a mobile terminal, it is characterised in that include mobile terminal case as claimed in claim 9.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109624580A (en) * | 2018-12-06 | 2019-04-16 | 蓝思科技（长沙）有限公司 | The radium-shine processing technology of ceramic material product and ceramic material product and electronic equipment |
| CN109957746A (en) * | 2017-12-25 | 2019-07-02 | 比亚迪股份有限公司 | A kind of amorphous alloy method for coloring surface and amorphous alloy |
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| CN105624671B (en) | 2018-05-15 |
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