201224173六、發明說明： 【發明所屬之技術領域】 ⑽01] 本發明涉及一種鋁製品及其製備方法。 【先前技術】 [0002]鋁及鋁合金因其質輕以及優良的機械加工性能，使得鋁 及鋁合金被廣泛地應用於各種家用電器、汽車、電子產 品的外殼。 [0003] 〇 [0004] 為了獲得較好的外觀效果，通常藉由陽極氧化、電泳塗 裝、喷漆等表面裝飾處理於鋁或銘合金產品表面形成某 種顏色的裝飾層然，經上述處理獲得的.裂飾片的、 通常是固定不變的，缺乏變化和多樣性。:隨著消費水準 的提高’這種外觀已經不能滿足消費者對這此產。 觀追求。 的外 【發明内容】 有鑒於此，有必要提供一種顏色多變、具有較佳擎飾 果的紹製品。 效 〇 [0005] [0006] 另外，有必要提供一種上述鋁叙品的製傷方法。 一種鋁製品，包括鋁基體及形成於該鋁基體上的無色透 明真空鍍膜層，該鋁基體包括經電化學腐蝕形成的多孔 表面，該多孔表面分佈有多個奈米孔，該真空鍍 成於該多孔表面上。 [〇〇〇7] —種銘製品的製備方法，包括如下步驟： [0008] 提供鋁基體； 099142272 表單編號A0101 第3頁/共1〇頁 201224173 [0009] 電化學腐蝕處理，以使該鋁基體形成多孔表面，該多孔 表面分佈有多個奈米孔； [0010] 真空鍍膜處理，以於該多孔表面形成一層無色透明的真 空鍍膜層。 [0011] 相較於習知技術，上述铭製品先藉由陽極電化學腐钮處 理於該鋁基體上形成多孔表面，再藉由真空鍍膜方法於 該多孔表面形成該無色透明的真空鍍膜層。由於多孔表 面分佈有所述奈米孔，使該真空鍍膜層於不同的位置具 有不同的厚度，即真空鍍膜層於所述奈米孔處的厚度大 於未形成奈米孔處的厚度。於光的照射下，不同厚度的 真空鍍膜層對光線的反射與折射的光程差不同，因此不 同位置處的真空鍍膜層可形成不同顏色的干涉光，使得 同一鋁製品表面呈現多種顏色，具有較佳的裝飾效果。 該鋁製品的製備方法工藝簡單。 【實施方式】 [0012] 請參閱圖1，本發明較佳實施例的鋁製品100包括鋁基體 10及形成於鋁基體10上的一層無色透明的真空鍍膜層30 0 [0013] 鋁基體1 0的材料為純鋁或鋁合金。 [0014] 鋁基體10包括多孔表面12，該多孔表面12上分佈有多個 奈米孔122。所述奈米孔122的孔徑範圍為10〜300nm，較 佳為30〜lOOnm。奈米孔122的深度分佈在10~120nm範圍 内，較佳為20~80nm。所述奈米孔122可藉由電化學腐蝕 形成。 099142272 表單編號A0101 第4頁/共10頁 0992073424-0201224173 VI. Description of the invention: [Technical field to which the invention pertains] (10) 01] The present invention relates to an aluminum article and a method of producing the same. [Prior Art] [0002] Aluminum and aluminum alloys are widely used in various household appliances, automobiles, and electronic products due to their light weight and excellent machinability. [0003] 〇 [0004] In order to obtain a better appearance effect, a decorative layer of a certain color is usually formed on the surface of an aluminum or a mother alloy product by surface decoration treatment such as anodization, electrophoretic coating, spray painting, etc. The cracked piece is usually fixed, lacking in variation and diversity. : With the increase in consumption levels, this appearance is no longer enough for consumers to pay for this product. The pursuit of. In addition, in view of the above, it is necessary to provide a finished product which has a variety of colors and has a better quality. Effect [0005] [0006] In addition, it is necessary to provide a method of injuring the above-mentioned aluminum product. An aluminum article comprising an aluminum substrate and a colorless transparent vacuum coating layer formed on the aluminum substrate, the aluminum substrate comprising a porous surface formed by electrochemical etching, the porous surface being distributed with a plurality of nanopores, the vacuum plating being On the porous surface. [〇〇〇7] - A method for preparing a product, comprising the following steps: [0008] providing an aluminum substrate; 099142272 Form No. A0101 Page 3 / Total 1 page 201224173 [0009] Electrochemical etching treatment to make the aluminum The substrate forms a porous surface, and the porous surface is distributed with a plurality of nanopores; [0010] a vacuum coating treatment to form a colorless and transparent vacuum coating layer on the porous surface. [0011] Compared with the prior art, the above-mentioned inscription product is first treated on the aluminum substrate by an anode electrochemical corrosion button to form a porous surface, and the colorless and transparent vacuum coating layer is formed on the porous surface by a vacuum coating method. Since the porous surface is distributed with the nanopore, the vacuum coating layer has different thicknesses at different positions, i.e., the thickness of the vacuum coating layer at the nanopore is greater than the thickness at which the nanopore is not formed. Under the illumination of light, the vacuum coating layers of different thicknesses have different optical path differences between light reflection and refraction. Therefore, the vacuum coating layers at different positions can form different colors of interference light, so that the surface of the same aluminum product presents multiple colors, Better decorative effect. The preparation method of the aluminum product is simple in process. [0012] Referring to FIG. 1, an aluminum article 100 according to a preferred embodiment of the present invention includes an aluminum substrate 10 and a layer of colorless transparent vacuum coating layer 30 formed on the aluminum substrate 10. [0013] Aluminum substrate 10 The material is pure aluminum or aluminum alloy. [0014] The aluminum substrate 10 includes a porous surface 12 having a plurality of nanopores 122 distributed thereon. The pore size of the nanopore 122 ranges from 10 to 300 nm, preferably from 30 to 100 nm. The depth of the nanopore 122 is in the range of 10 to 120 nm, preferably 20 to 80 nm. The nanopore 122 can be formed by electrochemical etching. 099142272 Form No. A0101 Page 4 of 10 0992073424-0
201224173 LUUlbJ Ο ' [0016] Ο [0017] [0018] [0019] 該真空鍍膜層30形成於鋁基體10的多孔表面12上。由於 多孔表面分佈有所述奈米孔122，使真空鍍膜層30於不同 的位置具有不同的厚度。真空鍍膜層30可以由金屬、金 屬氧化物或非金屬氧化物形成，其中金屬可以為鈦、鉻 、鋁、鋅及锆等，金屬氧化物可以為鈦、鉻、鋁、鋅及 鍅的氧化物，非金屬氧化物可以為二氧化矽。當真空鍍 膜層30由所述金屬形成時，其厚度於10~150nm範圍内， 其厚度為150nm以下時，真空鍍膜層30接近無色透明，超 過15Onm時，真空鍍膜層30自身的顏色於肉眼觀察下開始 變得較為明顯。當真空鍍膜層30由所述金屬氧化物或非 金屬氧化物形成時，其厚度於50nm至2；«m範圍内。 上述鋁製品100於形成該真空鍍膜層30前，具有多孔表面 12的鋁基體10為鋁材原色。當多孔表面12形成該真空鍍 膜層30後，由於多孔表面12分佈有所述奈米孔122，使真 空鍍膜層30於不同的位置具有不同的厚度，即真空鍍膜 層30於奈米孔122處的厚度大於未形成奈米孔122處的厚 度。於光的照射下，不同厚度的真空鍍膜層30對光線的 反射與折射的光程差不同，因此不同位置處的真空鍍膜 層30可形成不同顏色的干涉光，使得同一鋁製品100表面 呈現多種顏色。 上述鋁製品100的製備方法，包括如下步驟： 首先，提供該鋁基體10。 對鋁基體10進行預處理。預處理包括對鋁基體10除油及 化學拋光。其中，所述除油步驟可以用丙酮清洗大約5分 099142272 表單編號Α0101 第5頁/共10頁 0992073424-0 201224173 鐘後’於乙醇中超聲振動大約3Omin，然後用水清洗。所 述化學拋光所用拋光液可以用體積比為3 : 1 : 1的鱗酸（ 濃度為85wt%)、硝酸和水的混合溶液，拋光時拋光液溫 度在70〜80°C之間’拋光時間大約為5分鐘。 [0020] 對經上述預處理的鋁基體進行陽極電化學腐蚀處理， 以於銘基體10上形成所述多孔表面12。陽極電化學腐姓 的條件為·銘基體1 0作為陽極，欽板作陰極，電解液為 含品質濃度為0. 5%的氫氣酸和〇. 5mol/L硫酸的水溶液， 電解液溫度為室溫，pH值小於2，電解電壓為1 〇〜2 5 V， :........... . . .. 、 ·：；. 電解時間為30~10〇min ’電解過程中可對電解液進行磁 力攪拌。經上述陽極電化學腐蝕處理形成的多孔表面12 形成所述多個奈米孔122。 _]對經陽極電化學__基龍進行真空鑛膜處理以 於所述多孔表面12形成該無色透明的真空鍍膜層30。該 真工鍵膜方/ir可採用機鍵、蒸鍵或離子鑛。該步驟具體 工藝可採射目應方法的常規錄膜工藝鑛膜過程中藉由 控制鍍膜時間來_真空朗層綱厚度在上述範圍内 ，以保證該真空錢媒層㈣&色透明。 [0022] 099142272 上祕品：製傷方法於形成無色透明的真空鍍膜層30 前，先藉由陽極電彳 化學腐蝕處理於鋁基體10表面形成太 米多孔結構’使得不π ^ 卞不冋位置處的真空鍍膜層30具有不同 的厚度’因而不同仿罢占 置處的真空鑛膜層30能產生不同顏 色的干涉光，使得间 Π —鉬製品呈現多種顏色，具有較佳 的裝飾效果。該叙_ α 的製備方法工藝簡單。 【圖式簡單說明】 表單編號Α0101 w。 0992073424-0 第6頁/共10頁 201224173 LUU创 圖1為本發明較佳實施例的鋁製品的剖視示意圖。 【主要元件符號說明】 [0024] 鋁製品：100 [0025] 鋁基體：10 [0026] 多孔表面：12 [0027] 奈米孔：122 [0028] 真空鍍膜層：30201224173 LUUlbJ Ο ' [0016] [0019] The vacuum coating layer 30 is formed on the porous surface 12 of the aluminum substrate 10. Since the porous surface is distributed with the nanopore 122, the vacuum coating layer 30 has different thicknesses at different positions. The vacuum coating layer 30 may be formed of a metal, a metal oxide or a non-metal oxide, wherein the metal may be titanium, chromium, aluminum, zinc, zirconium, etc., and the metal oxide may be an oxide of titanium, chromium, aluminum, zinc, and antimony. The non-metal oxide may be cerium oxide. When the vacuum coating layer 30 is formed of the metal, the thickness thereof is in the range of 10 to 150 nm, and when the thickness is 150 nm or less, the vacuum coating layer 30 is nearly colorless and transparent, and when it exceeds 15 nm, the color of the vacuum coating layer 30 itself is observed by the naked eye. The next start becomes more obvious. When the vacuum plating layer 30 is formed of the metal oxide or non-metal oxide, its thickness is in the range of 50 nm to 2; «m. Before the aluminum product 100 is formed, the aluminum substrate 10 having the porous surface 12 is an aluminum primary color before the vacuum plating layer 30 is formed. After the porous surface 12 forms the vacuum coating layer 30, since the porous surface 12 is distributed with the nanopore 122, the vacuum coating layer 30 has different thicknesses at different positions, that is, the vacuum coating layer 30 is at the nanopore 122. The thickness is greater than the thickness at which the nanopore 122 is not formed. Under the illumination of light, the vacuum coating layer 30 of different thicknesses has different optical path difference between reflection and refraction of light, so the vacuum coating layer 30 at different positions can form interference light of different colors, so that the surface of the same aluminum product 100 exhibits various kinds. colour. The method for preparing the above aluminum product 100 comprises the following steps: First, the aluminum substrate 10 is provided. The aluminum substrate 10 is pretreated. The pretreatment includes degreasing and chemical polishing of the aluminum substrate 10. Wherein, the degreasing step can be washed with acetone for about 5 minutes 099142272 Form No. Α 0101 Page 5 / Total 10 pages 0992073424-0 201224173 After the clock ultrasonic vibration in ethanol for about 30 minutes, and then washed with water. The polishing liquid used for the chemical polishing may be a mixed solution of scaly acid (concentration: 85 wt%) in a volume ratio of 3:1:1, nitric acid and water, and the polishing liquid temperature during polishing is between 70 and 80 ° C. It's about 5 minutes. [0020] The aluminum substrate subjected to the above pretreatment is subjected to an anodic electrochemical etching treatment to form the porous surface 12 on the substrate 10. The condition of the anode electrochemical susceptibility is · Ming base body 10 as the anode, Qin plate as the cathode, the electrolyte is a hydrogen acid and cesium containing a mass concentration of 0.5%. 5mol / L sulfuric acid aqueous solution, the electrolyte temperature is the chamber Temperature, pH value is less than 2, electrolysis voltage is 1 〇~2 5 V, :........... . . . , ·:;. Electrolysis time is 30~10〇min 'In the process of electrolysis The electrolyte can be magnetically stirred. The porous surface 12 formed by the above-described anodic electrochemical etching treatment forms the plurality of nanopores 122. The vacuum electroless film treatment is performed on the anode electrochemistry __ kelong to form the colorless and transparent vacuum coating layer 30 on the porous surface 12. The real bond film side /ir can be a machine key, a steam key or an ion mine. The specific process of the step can be carried out by the conventional film recording process in the film process by controlling the coating time to the thickness of the vacuum layer in the above range to ensure that the vacuum money layer (4) & color transparent. [0022] 099142272 Upper Secret: The method of injury is to form a porous structure of titanium on the surface of the aluminum substrate 10 by anodic electro-chemical etching before forming the colorless and transparent vacuum coating layer 30 so that the position is not π ^ 卞The vacuum coating layer 30 has different thicknesses. Thus, the vacuum mineral film layer 30 of different imitation positions can generate different colors of interference light, so that the inter-molybdenum-molybdenum product exhibits multiple colors and has a better decorative effect. The preparation method of the _α is simple in process. [Simple description of the drawing] The form number is Α0101 w. 0992073424-0 Page 6 of 10 201224173 LUU Creation Figure 1 is a schematic cross-sectional view of an aluminum article in accordance with a preferred embodiment of the present invention. [Main component symbol description] [0024] Aluminum product: 100 [0025] Aluminum substrate: 10 [0026] Porous surface: 12 [0027] Nano hole: 122 [0028] Vacuum coating layer: 30
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099142272 表單編號A0101 第7頁/共10頁 0992073424-0099142272 Form No. A0101 Page 7 of 10 0992073424-0