CN103227268B - A kind of LED fluorescent material coating process - Google Patents
A kind of LED fluorescent material coating process Download PDFInfo
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- 238000007789 sealing Methods 0.000 claims abstract description 13
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- 230000003647 oxidation Effects 0.000 claims abstract description 5
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 45
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 34
- 239000007822 coupling agent Substances 0.000 claims description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 14
- 239000011259 mixed solution Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000007743 anodising Methods 0.000 claims description 10
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 10
- 238000005498 polishing Methods 0.000 claims description 9
- 238000005057 refrigeration Methods 0.000 claims description 9
- 230000004913 activation Effects 0.000 claims description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 7
- 238000005429 filling process Methods 0.000 claims description 7
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- 238000002156 mixing Methods 0.000 claims description 6
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- 239000007788 liquid Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 4
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000003292 glue Substances 0.000 description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
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Abstract
本发明公开了一种LED荧光粉涂装方法，铝合金表面作为LED光源的漫反射面使用，铝合金经过表面处理，表面处理包括铝合金阳极氧化处理，纳米荧光粉表面修饰处理，纳米荧光粉灌装处理和封孔处理，铝合金表面作为漫反射面将LED发射的蓝光经过纳米荧光粉的转换作用部分转换为黄光，黄光和蓝光混合成为白光。本发明的技术效果是：荧光粉不再是LED散热的阻碍，同时荧光粉也不会在较高的温度下工作，是超高功率LED光源的一种优选的技术方案。
The invention discloses a LED fluorescent powder coating method. The surface of an aluminum alloy is used as a diffuse reflection surface of an LED light source. The aluminum alloy is subjected to surface treatment, and the surface treatment includes anodic oxidation treatment of aluminum alloy, surface modification treatment of nano fluorescent powder, and nano fluorescent powder. Filling treatment and hole sealing treatment, the aluminum alloy surface is used as a diffuse reflection surface to convert the blue light emitted by the LED into yellow light through the conversion of nano-phosphor powder, and the yellow light and blue light are mixed to become white light. The technical effect of the invention is that the fluorescent powder is no longer an obstacle to the heat dissipation of the LED, and the fluorescent powder will not work at a higher temperature, so it is a preferred technical solution for an ultra-high-power LED light source.
Description
技术领域 technical field
本发明属于LED照明技术领域，具体涉及一种LED荧光粉涂装方法。 The invention belongs to the technical field of LED lighting, and in particular relates to an LED fluorescent powder coating method.
背景技术 Background technique
目前，LED荧光粉通常首先和胶水混合，然后滴胶涂覆于LED表面，以蓝光LED为例，蓝光光线从LED发射出来以后，部分蓝光光线和荧光粉作用被转换为黄光，黄光和蓝光混合，这样发射出来的就成了白光。由于胶水往往是热的不良导体，蓝光被荧光粉吸收后部分转换为热能，这样就会出现胶水老化，荧光粉受热后发光效率降低，色温飘移等方面的问题，同时LED的温度也会升高，缩短LED的使用寿命。另外，直接从LED发射出来的光非常炫目，往往需要漫反射材料使得光线变得柔和，在漫反射过程中，漫反射材料会吸收部分光，导致LED亮度变低，同时也会推高LED灯源的成本。 At present, LED phosphor powder is usually mixed with glue first, and then glue is applied to the surface of the LED. Taking blue LED as an example, after the blue light is emitted from the LED, part of the blue light and the fluorescent powder are converted into yellow light, yellow light and The blue light mixes so that what is emitted becomes white light. Since the glue is often a poor conductor of heat, the blue light is partially converted into heat energy after being absorbed by the phosphor, which will cause problems such as glue aging, reduced luminous efficiency of the phosphor after being heated, and color temperature drift. At the same time, the temperature of the LED will also rise. , shorten the service life of LED. In addition, the light emitted directly from the LED is very dazzling, and diffuse reflection materials are often required to soften the light. During the diffuse reflection process, the diffuse reflection materials will absorb part of the light, resulting in lower brightness of the LED, and at the same time pushing up the LED light. source cost.
因此提出一种新的LED荧光粉涂装方法，能够克服现有封装技术的缺陷。 Therefore, a new LED phosphor coating method is proposed, which can overcome the defects of the existing packaging technology.
发明内容 Contents of the invention
针对现有LED荧光粉封装的缺点，本发明作为发明人提出的一整LED荧光粉涂装技术方案中的一个重要组成部分，提供一种LED荧光粉涂装方法，应用于LED照明，克服了现有LED荧光粉封装的缺点。 Aiming at the shortcomings of the existing LED phosphor packaging, the present invention, as an important part of the whole LED phosphor coating technical solution proposed by the inventor, provides a LED phosphor coating method, which is applied to LED lighting and overcomes the Disadvantages of existing LED phosphor packaging.
本发明是这样实现的，一种LED荧光粉涂装方法，铝合金表面作为LED光源的反射面使用，铝合金经过表面处理，表面处理包括铝合金阳极氧化处理、纳米荧光粉表面修饰处理、纳米荧光粉灌装处理和封孔处理，各个步骤描述如下： The present invention is achieved in this way, a LED fluorescent powder coating method, the surface of the aluminum alloy is used as the reflective surface of the LED light source, the aluminum alloy is subjected to surface treatment, and the surface treatment includes anodic oxidation treatment of aluminum alloy, surface modification treatment of nano phosphor powder, nano Phosphor powder filling process and hole sealing process, each step is described as follows:
铝合金阳极氧化处理分为以下步骤，第一步，铝合金表面抛光处理，第二步，铝合金表面粗糙化处理，第三步，铝合金表面阳极氧化，第四步，铝合金表面活化处理，所述第一步铝合金表面抛光处理是将铝合金作为阳极，放入高氯酸和乙醇的混合溶液，阳极电压的范围是从0伏到15伏，高氯酸和乙醇的混合溶液的温度通过制冷系统维持在10摄氏度以下，铝合金表面抛光处理的时间在60秒以内；所述第二步铝合金表面粗糙化处理是将铝合金放入氢氧化钠、水和乙醇的混合液中，该混合溶液的温度通过制冷系统维持在20摄氏度以下；所述第三步铝合金表面阳极氧化是将铝合金作为阳极，放入磷酸、水和乙醇的混合溶液，阳极电压为120伏到250伏，磷酸、水和乙醇的混合溶液的温度通过制冷系统维持在10摄氏度以下;所述第四步铝合金表面活化处理是是将铝合金浸入偶联剂中，偶联剂的温度维持在80摄氏度到120摄氏度之间。 The aluminum alloy anodizing treatment is divided into the following steps, the first step is aluminum alloy surface polishing treatment, the second step is aluminum alloy surface roughening treatment, the third step is aluminum alloy surface anodizing treatment, the fourth step is aluminum alloy surface activation treatment , the first step of aluminum alloy surface polishing treatment is to use aluminum alloy as an anode, put into the mixed solution of perchloric acid and ethanol, the range of anode voltage is from 0 volts to 15 volts, the mixed solution of perchloric acid and ethanol The temperature is maintained below 10 degrees Celsius by the refrigeration system, and the time for the aluminum alloy surface polishing treatment is within 60 seconds; the second step of the aluminum alloy surface roughening treatment is to put the aluminum alloy into a mixed solution of sodium hydroxide, water and ethanol , the temperature of the mixed solution is maintained below 20 degrees Celsius through the refrigeration system; the third step of anodizing the surface of the aluminum alloy is to use the aluminum alloy as an anode, put it into a mixed solution of phosphoric acid, water and ethanol, and the anode voltage is 120 volts to 250 volts The temperature of the mixed solution of phosphoric acid, water and ethanol is maintained below 10 degrees centigrade through the refrigeration system; the fourth step of aluminum alloy surface activation treatment is to immerse the aluminum alloy in the coupling agent, and the temperature of the coupling agent is maintained at 80 Celsius to 120 degrees Celsius.
纳米荧光粉表面修饰处理是将纳米荧光粉和偶联剂混合，纳米荧光粉和偶联剂的质量比例为100比5到100比1，混合过程中偶联剂的温度在80摄氏度到120摄氏度之间，混合的时间为1小时到24小时，在有超声波的环境下进行处理30秒钟到300秒钟。 Nano phosphor surface modification treatment is to mix nano phosphor and coupling agent, the mass ratio of nano phosphor and coupling agent is 100 to 5 to 100 to 1, and the temperature of coupling agent during the mixing process is 80 degrees Celsius to 120 degrees Celsius Between, the mixing time is 1 hour to 24 hours, and the treatment is carried out in an ultrasonic environment for 30 seconds to 300 seconds.
纳米荧光粉灌装处理是将纳米荧光粉表面修饰处理后得到的纳米荧光粉和上述铝合金表面处理得到的铝合金进行混合，在每立方米30瓦到200瓦的超声功率的环境下进行超声波处理的频率为60kHz到80kHz，处理时间为300秒到1000秒。 The nano phosphor filling process is to mix the nano phosphor powder obtained after the surface modification of the nano phosphor powder and the aluminum alloy obtained by the above aluminum alloy surface treatment, and conduct ultrasonic waves in an environment with an ultrasonic power of 30 watts to 200 watts per cubic meter. The processing frequency is 60kHz to 80kHz, and the processing time is 300 seconds to 1000 seconds.
封孔处理是将纳米荧光粉灌装处理后的铝合金进行封孔处理，封孔处理的参数为，温度为80摄氏度到100摄氏度，气压为1个大气压到5个大气压，蒸汽的体积浓度为30%到50%，处理时间为30分钟到60分钟。 The sealing treatment is to seal the aluminum alloy after the nano phosphor powder filling treatment. The parameters of the sealing treatment are: the temperature is 80 degrees Celsius to 100 degrees Celsius, the air pressure is 1 atmosphere to 5 atmospheres, and the volume concentration of the steam is 30% to 50%, the processing time is 30 minutes to 60 minutes.
更好的，所述铝合金表面作为漫反射面将LED发射的蓝光经过所述纳米荧光粉的转换作用部分转换为黄光，黄光和蓝光混合成为白光。 More preferably, the surface of the aluminum alloy is used as a diffuse reflection surface to partially convert the blue light emitted by the LED into yellow light through the conversion of the nano phosphor powder, and the yellow light and blue light are mixed to form white light.
本发明的技术原理：通过抛光处理使得铝合金表面出现镜面效果，有利于光线的反射，通过氢氧化钠溶液的浸泡，使得铝合金表面在微米尺度范围内出现粗糙的表面，形成漫反射面，通过阳极氧化技术在铝合金表明产生的孔洞直径在200纳米到350纳米，孔洞的深度在300纳米到3微米，铝合金表面活化处理以后，纳米孔洞内壁就会附着偶联剂；纳米荧光粉表面修饰处理的效果是使得纳米荧光粉被偶联剂包裹；在纳米荧光粉灌装过程中，纳米荧光粉进入铝合金表面的纳米孔洞中，在偶联剂的帮助下，纳米荧光粉被吸附在铝合金表面的纳米孔洞中；通过封孔处理，使得铝合金表面的氧化铝膜的孔洞封闭，进而封闭纳米荧光粉。这样处理以后的铝合金表面作为反射面将LED发射的蓝光经过纳米荧光粉的转换作用部分转换为黄光，经过铝合金表面反射后黄光和蓝光混合成为白光。 The technical principle of the present invention: through polishing treatment, the surface of the aluminum alloy has a mirror effect, which is beneficial to the reflection of light, and through soaking in sodium hydroxide solution, the surface of the aluminum alloy has a rough surface in the range of microns, forming a diffuse reflection surface. Through anodic oxidation technology, the diameter of the holes produced in the aluminum alloy is between 200 nanometers and 350 nanometers, and the depth of the holes is between 300 nanometers and 3 microns. After the surface activation treatment of the aluminum alloy, the inner wall of the nano-holes will be attached to the coupling agent; the surface of the nano-phosphor powder The effect of the modification treatment is to make the nano-phosphor powder be wrapped by the coupling agent; during the filling process of the nano-phosphor powder, the nano-phosphor powder enters the nano-holes on the surface of the aluminum alloy, and with the help of the coupling agent, the nano-phosphor powder is adsorbed in the In the nano-holes on the surface of the aluminum alloy; through the sealing treatment, the holes of the aluminum oxide film on the aluminum alloy surface are closed, and then the nano-phosphor powder is sealed. The aluminum alloy surface treated in this way is used as a reflective surface to convert the blue light emitted by the LED into yellow light through the conversion of nano-phosphor powder, and the yellow light and blue light are mixed into white light after being reflected by the aluminum alloy surface.
本发明的创造性在于： The inventiveness of the present invention lies in:
a、荧光粉远离LED发光源，荧光粉工作的温度接近室温，荧光粉的工作稳定性提高，寿命增加； a. The phosphor powder is far away from the LED light source, the working temperature of the phosphor powder is close to room temperature, the working stability of the phosphor powder is improved, and the service life is increased;
b、LED发光面没有荧光粉的阻挡，LED的散热性能提高； b. There is no blocking of fluorescent powder on the LED light-emitting surface, and the heat dissipation performance of the LED is improved;
c、荧光粉成分在铝合金表面的不同部位可以不同，这样可以实现同一个LED光源产生多种颜色的光。 c. The phosphor composition can be different in different parts of the aluminum alloy surface, so that the same LED light source can produce multiple colors of light.
d、将铝合金表面处理和荧光粉的涂装结合在一起，铝合金可以为荧光粉提供良好的散热，可以为超高功率LED光源提供更好的设计方案。 d. Combining aluminum alloy surface treatment with phosphor coating, aluminum alloy can provide good heat dissipation for phosphor, and can provide a better design solution for ultra-high-power LED light sources.
e、铝合金表面经过粗糙化处理，发射光线成为漫反射光，避免了炫目的情况，同时控制了LED灯的成本。 e. The surface of the aluminum alloy is roughened, and the emitted light becomes diffuse reflection light, which avoids dazzling situations, and at the same time controls the cost of LED lights.
本发明的技术效果是：荧光粉不再是LED散热的阻碍，同时荧光粉也不会在较高的温度下工作，是超高功率LED光源的一种优选的技术方案，铝合金表面可以实现漫反射，避免了炫目的情况。 The technical effect of the present invention is that the fluorescent powder is no longer an obstacle to the heat dissipation of the LED, and the fluorescent powder will not work at a higher temperature. It is an optimal technical solution for an ultra-high-power LED light source. Diffuse reflection avoids glare.
附图说明 Description of drawings
图1是本发明实施例的铝合金表面阳极氧化处理后的铝合金表面的截面示意图。 FIG. 1 is a schematic cross-sectional view of an aluminum alloy surface after anodic oxidation treatment of the aluminum alloy surface according to an embodiment of the present invention.
图2是本发明实施例的铝合金表面活化处理后的铝合金表面的截面示意图。 2 is a schematic cross-sectional view of the aluminum alloy surface after the surface activation treatment of the aluminum alloy according to the embodiment of the present invention.
图3是本发明实施例的纳米荧光粉灌装处理后的铝合金表面的截面示意图。 FIG. 3 is a schematic cross-sectional view of the aluminum alloy surface after the nano phosphor powder filling process according to the embodiment of the present invention.
图4是本发明实施例的封孔处理后的铝合金表面的截面示意图。 FIG. 4 is a schematic cross-sectional view of the surface of the aluminum alloy after sealing treatment according to an embodiment of the present invention.
图5是本发明实施例的铝合金表面反射LED光源的示意图。 Fig. 5 is a schematic diagram of an aluminum alloy surface reflective LED light source according to an embodiment of the present invention.
附图标记说明：1、铝合金；10、铝合金表面；11、多孔阳极氧化铝；21、多孔阳极氧化铝表面的偶联剂；50、纳米荧光粉；51、纳米荧光粉表面的偶联剂；31、LED发射的蓝光；32、混合光；41、LED；42、LED支架。 Explanation of reference signs: 1. Aluminum alloy; 10. Aluminum alloy surface; 11. Porous anodized aluminum; 21. Coupling agent on the surface of porous anodized aluminum; 50. Nano phosphor; 51. Coupling on the surface of nano phosphor 31. Blue light emitted by LED; 32. Mixed light; 41. LED; 42. LED bracket.
具体实施方式 detailed description
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。 In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
下面结合上述附图及实施例，对本发明做进一步的详细说明。 The present invention will be further described in detail below in conjunction with the above-mentioned drawings and embodiments.
本发明实施例如图1至图5所示：本发明是这样实现的，一种LED荧光粉涂装方法，铝合金表面作为LED光源的反射面使用，铝合金经过表面处理，表面处理包括铝合金阳极氧化处理、纳米荧光粉表面修饰处理、纳米荧光粉灌装处理和封孔处理，各个步骤描述如下。 The embodiment of the present invention is shown in Fig. 1 to Fig. 5: the present invention is achieved in this way, a LED fluorescent powder coating method, the aluminum alloy surface is used as the reflective surface of the LED light source, the aluminum alloy is subjected to surface treatment, and the surface treatment includes aluminum alloy Each step of anodizing treatment, nano-phosphor surface modification treatment, nano-phosphor filling treatment and hole sealing treatment is described as follows.
铝合金阳极氧化处理分为以下步骤，第一步，铝合金表面抛光处理，第二步，铝合金表面粗糙化处理，第三步，铝合金表面阳极氧化，第四步，铝合金表面活化处理，第一步铝合金表面抛光处理是将铝合金作为阳极，放入高氯酸和乙醇的混合溶液，阳极电压的范围是从0伏到15伏，高氯酸和乙醇的混合溶液的温度通过制冷系统维持在4摄氏度，铝合金表面抛光处理的时间为30秒；第二步铝合金表面粗糙化处理是将铝合金放入氢氧化钠、水和乙醇的混合液中，该混合液的温度通过制冷系统维持在15摄氏度，其中氢氧化钠、水和乙醇的混合液中氢氧化钠的质量浓度为15%，乙醇的质量浓度为30%；第三步铝合金表面阳极氧化是将铝合金作为阳极，放入磷酸、水和乙醇的混合溶液，阳极电压为200伏，磷酸的质量浓度为1%，乙醇的质量浓度为50%，磷酸、水和乙醇的混合溶液的温度通过制冷系统维持在4摄氏度，阳极氧化时间为30分钟，如图1所示，得到的铝合金表面10的多孔阳极氧化铝11的孔洞直径约为350纳米，深度为2微米；第四步铝合金表面活化处理是是将铝合金浸入偶联剂中，偶联剂的温度维持在90摄氏度，偶联剂为单烷氧基钛酸酯，如图2所示，多孔阳极氧化铝表面的偶联剂21依附在多孔阳极氧化铝11表面。 The aluminum alloy anodizing treatment is divided into the following steps, the first step is aluminum alloy surface polishing treatment, the second step is aluminum alloy surface roughening treatment, the third step is aluminum alloy surface anodizing treatment, the fourth step is aluminum alloy surface activation treatment The first step of aluminum alloy surface polishing treatment is to use aluminum alloy as an anode and put it into a mixed solution of perchloric acid and ethanol. The anode voltage ranges from 0 volts to 15 volts, and the temperature of the mixed solution of perchloric acid and ethanol passes The refrigeration system is maintained at 4 degrees Celsius, and the aluminum alloy surface is polished for 30 seconds; the second step of the aluminum alloy surface roughening treatment is to put the aluminum alloy in a mixture of sodium hydroxide, water and ethanol, and the temperature of the mixture is It is maintained at 15 degrees Celsius by a refrigeration system, wherein the mass concentration of sodium hydroxide in the mixture of sodium hydroxide, water and ethanol is 15%, and the mass concentration of ethanol is 30%; the third step is to anodize the aluminum alloy surface. As the anode, put a mixed solution of phosphoric acid, water and ethanol, the anode voltage is 200 volts, the mass concentration of phosphoric acid is 1%, the mass concentration of ethanol is 50%, the temperature of the mixed solution of phosphoric acid, water and ethanol is maintained by the refrigeration system At 4 degrees Celsius, the anodizing time is 30 minutes, as shown in Figure 1, the hole diameter of the porous anodized aluminum 11 obtained on the aluminum alloy surface 10 is about 350 nanometers, and the depth is 2 microns; the fourth step is aluminum alloy surface activation treatment It is to immerse the aluminum alloy in the coupling agent. The temperature of the coupling agent is maintained at 90 degrees Celsius. The coupling agent is a monoalkoxy titanate. As shown in Figure 2, the coupling agent 21 attached to the surface of the porous anodized aluminum On the surface of porous anodized aluminum 11.
纳米荧光粉表面修饰处理是将纳米荧光粉和偶联剂混合，纳米荧光粉和偶联剂的质量比例为100比2，混合过程中偶联剂的温度为90摄氏度，混合的时间为3小时，在有超声波的环境下进行处理100秒钟，偶联剂为单烷氧基钛酸酯。 Nano phosphor surface modification treatment is to mix nano phosphor powder and coupling agent, the mass ratio of nano phosphor powder and coupling agent is 100 to 2, the temperature of coupling agent during the mixing process is 90 degrees Celsius, and the mixing time is 3 hours , in an ultrasonic environment for 100 seconds, the coupling agent is a monoalkoxy titanate.
纳米荧光粉灌装处理是将上述纳米荧光粉表面修饰处理后得到的纳米荧光粉和铝合金表面处理得到的铝合金进行混合，在每立方米100瓦的超声功率的环境下进行超声波处理的频率为70kHz，处理时间为500秒，如图3所示，纳米荧光粉50的表面被纳米荧光粉表面的偶联剂51包裹，通过偶联剂的偶联作用，纳米荧光粉50吸附于多孔阳极氧化铝11的空洞内部。 The nano phosphor filling treatment is to mix the nano phosphor powder obtained after the surface modification treatment of the above nano phosphor powder and the aluminum alloy obtained by the aluminum alloy surface treatment, and perform ultrasonic treatment in an environment with an ultrasonic power of 100 watts per cubic meter. 70kHz, the processing time is 500 seconds, as shown in Figure 3, the surface of the nano-phosphor 50 is wrapped by the coupling agent 51 on the surface of the nano-phosphor, through the coupling effect of the coupling agent, the nano-phosphor 50 is adsorbed on the porous anode The hollow interior of alumina 11.
封孔处理是将上述纳米荧光粉灌装处理后的铝合金进行封孔处理，封孔处理的参数为，环境温度为90摄氏度，气压为3个大气压，蒸汽的体积浓度为40%，处理时间为40分钟，如图4所示，多孔阳极氧化铝11在水和作用下，多孔阳极氧化铝11的孔洞被氧化铝封闭。 The hole sealing treatment is to carry out the hole sealing treatment on the aluminum alloy after the above-mentioned nano phosphor filling treatment. The parameters of the hole sealing treatment are as follows: the ambient temperature is 90 degrees Celsius, the air pressure is 3 atmospheres, the volume concentration of steam is 40%, and the treatment time For 40 minutes, as shown in FIG. 4 , under the action of water and the porous anodized aluminum oxide 11 , the pores of the porous anodized aluminum oxide 11 are sealed by aluminum oxide.
如图4所示，LED41固定在LED支架42，LED41的发光面朝向铝合金1，铝合金1的表面作为漫反射面将LED41发射的蓝光31经过纳米荧光粉的转换作用部分转换为黄光，黄光和蓝光的混合光32为白光。 As shown in Figure 4, LED41 is fixed on LED support 42, and the light-emitting surface of LED41 faces aluminum alloy 1, and the surface of aluminum alloy 1 is used as diffuse reflection surface to convert the blue light 31 that LED41 emits into yellow light through the conversion of nano phosphor powder. The mixed light 32 of yellow light and blue light is white light.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，譬如，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。 The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For example, any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the present invention. within the scope of protection.
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