201223769 六、發明說明： 【發明所屬之技術領域】 [麵]本發明涉及一種彩色金屬製品及其製備方法。 【先前技術】 _2] $鏽鋼、銘合金、鎂合金等金屬因具有較高的強度被廣 泛地應用於各種家用電器、汽車、電子產品的外殼。 [0003]為了獲得較好的外觀效果’通常藉由電鍍、電泳塗裝、 喷漆等表面裝飾處理在上述金屬外殼表面形成某種顏色 〇 的裝飾層，然而，經上述處理獲得的裝飾層的通常只具 有某種固定不變的顏色，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些產品 • |i || / i ；； 8 的外觀追求。 L' 【發明内容】 [0004] 有鑒於此，有必要提供一種顏色多變、真有較佳裝飾效 果的彩色金屬製品。 [0005] 〇 另外，有必要提供一種上述彩色金屬製品的製備方法。 [0006] 一種彩色金屬製品，包括金屬基艟及形成於該金屬基體 上的無色透明真空鍍膜層，該金屬基體包括經高能束蝕 刻形成的多孔表面，該多孔表面分佈有複數微孔，所述 微孔的孔徑分佈在5〜50//m範圍内，微孔的深度分佈在 lOOnm至5#m範圍内’該真空鍍膜層形成於該多孔表面上 〇 [〇007] 一種彩色金屬製品的製備方法，包括如下步驟： [0008] 提供金屬基體； 099143586 表單編號A0101 » . ^ 3 頁/共 10 頁 0992075501-0 201223769 [0009] 對金屬基體進行高能束加工，以使該金屬基體形成多孔 表面，該多孔表面分佈有複數微孔，所述微孔的孔徑分 佈在5〜50/zm範圍内，微孔的深度分佈在100nm至5//1I1範 圍内； [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，上述彩色金屬製品先藉由高能束加工 在該金屬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 面分佈有所述微孔，使該真空鍍膜層在不同的位置具有 不同的厚度，即真空鍍膜層於所述微孔處的厚度大於未 形成微孔處的厚度。在光的照射下，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，故不同位置處 的真空鍍膜層可形成不同顏色的干涉光，使得同一彩色 金屬製品表面呈現多種顏色，具有較佳的裝飾效果。該 彩色金屬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彩色金屬製品100包括 金屬基體10及形成於金屬基體10上的一層無色透明的真 空鍍膜層30。 [0013] 金屬基體10的材料可以為鋁、鋁合金、鎂、鎂合金、鈦 、鈦合金、不鑛鋼等。 [0014] 金屬基體10包括經高能束蝕刻形成的多孔表面12，該多 孔表面12上分佈有複數微孔122。所述微孔122的孔徑分 099143586 表單編號A0101 第4頁/共10頁 0992075501-0 201223769 佈在5〜50 範圍内。微孔122的深度分佈在10Onm至5# Π1範圍内。 [0015] Ο 該真空鍍膜層30形成於金屬基體1〇的多孔表面12上。由 於多孔表面12分佈有所述微孔122，真空鍍膜層30將所述 微孔122部分或完全填充，使真空鍍膜層30在不同的位置 具有不同的厚度，即真空鍍膜層30對應於微孔122位置的 厚度大於未形成微孔122位置的厚度。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、辞及錯等，金屬氣化物可以為鈦、鉻 、鋁、辞及锆的氧化物，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，其厚度在 50〜150 nm範圍内，其厚度為15 Onm以下時，真空鑛膜層 30接近無色透明，超過150nm時，真空鍍膜層30自身的 顏色在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；其厚度在 50nm至2 " m範圍内。 Q [0016] 上述彩色金屬製品100在形成該嗔空鍍膜層30前，具有多 孔表面12的金屬基體1〇為鋁材原色。當多孔表面12形成 該真空鍍膜層30後，由於多孔表面12分佈有所述微孔122 ，使真空鍍膜層30在不同的位置具有不同的厚度，即真 空鍍膜層30於微孔122處的厚度大於未形成微孔丨22處的 厚度。在光的照射下，不同厚度的真空鍍膜層3〇對光線 的反射與折射的光程差不同，故不同位置處的真空鍵膜 層30可形成不同顏色的干涉光，使得同一彩色金屬製品 100表面呈現多種顏色。 099143586 表單編號A0101 第5頁/共10頁 0992075501-0 201223769 [0017] 上述彩色金屬製品1 0 0的製備方法，包括如下步驟： [0018] 首先，提供該金屬基體10。 [0019] 對金屬基體10進行脫脂除油清洗。該脫脂除油清洗主要 包括將所述金屬基體10浸潰於含脫脂劑的水溶液中。所 述脫脂劑可為市面上出售的金屬常用的脫脂劑。該脫脂 劑的濃度可為90〜150g/L。浸潰時，保持所述脫脂劑的 水溶液的溫度在20〜30°C之間。該浸潰的時間為1~6分鐘 。脫脂處理後對所述金屬基體10進行水洗。 [0020] 對經上述脫脂除油清洗的金屬基體10進行高能束加工， 以在金屬基體10上形成所述多孔表面12。所述高能束加 工可以為鐳射蝕刻、電子束蝕刻及聚焦離子束蝕刻中的 一種。經高能束加工形成的多孔表面12形成有所述複數 微孔122。 [0021] 對經上述高能束加工的金屬基體10進行真空鍍膜處理， 以在該多孔表面12形成該無色透明的真空鍍膜層30。該 真空鍍膜處理方法可採用濺鍍、蒸鍍或離子鍍。該真空 鍍膜步驟具體工藝可採用相應方法的常規鍍膜工藝，鍍 膜過程中藉由控制鍍膜時間來控制真空鍍膜層30的厚度 在所述範圍内，以保證該真空鍍膜層30為無色透明。 [0022] 上述彩色金屬製品的製備方法在形成無色透明的真空鍍 膜層30前，先藉由高能束加工在金屬基體10表面形成多 孔表面12，由於多孔表面12分佈有所述微孔122，使真空 鍍膜層30在不同的位置具有不同的厚度，在光的照射下 ，不同厚度的真空鍍膜層30對光線的折射與反射產生的 099143586 表單編號A0101 第6頁/共10頁 0992075501-0 201223769 光程差不同，不同的光程差可產生不同顏色的干涉光。 故，不同位置處的真空鍍膜層30能產生不同顏色的干涉 光，使得同一彩色金屬製品呈現多種顏色，具有較佳的 裝飾效果。該彩色金屬製品的製備方法工藝簡單。 【圖式簡單說明】 [0023] 圖1為本發明較佳實施例的彩色金屬製品的剖視示意圖。 【主要元件符號說明】 [0024] 彩色金屬製品：100 Ο [0025] 金屬基體：10 [0026] 多孔表面：12 [0027] 微孔：122 [0028] 真空鍍膜層：30201223769 VI. Description of the invention: [Technical field to which the invention pertains] [Face] The present invention relates to a colored metal article and a method of producing the same. [Prior Art] _2] Metals such as stainless steel, alloys, and magnesium alloys are widely used in various household appliances, automobiles, and electronic products because of their high strength. [0003] In order to obtain a better appearance effect, a decorative layer of a certain color is formed on the surface of the metal casing by a surface decoration treatment such as electroplating, electrophoretic coating, spray painting, etc., however, the decorative layer obtained by the above treatment is usually Only have a certain fixed color, lack of change and diversity. As the level of consumption increases, this appearance is no longer sufficient for consumers to pursue the appearance of these products • |i || / i ;; L' [Summary of the Invention] [0004] In view of the above, it is necessary to provide a colored metal article having a variety of colors and a better decorative effect. [0005] Further, it is necessary to provide a method of preparing the above colored metal article. [0006] A colored metal article comprising a metal base and a colorless transparent vacuum coating layer formed on the metal substrate, the metal substrate comprising a porous surface formed by high energy beam etching, the porous surface being distributed with a plurality of micropores The pore size distribution of the micropores is in the range of 5 to 50/m, and the depth distribution of the micropores is in the range of 100 nm to 5 #m. The vacuum coating layer is formed on the porous surface. [〇007] Preparation of a colored metal product The method comprises the following steps: [0008] providing a metal substrate; 099143586 Form No. A0101 » . ^ 3 pages / total 10 pages 0992075501-0 201223769 [0009] High energy beam processing of a metal substrate to form a porous surface of the metal substrate, The porous surface is distributed with a plurality of micropores, the pore size distribution of the micropores is in the range of 5 to 50/zm, and the depth distribution of the micropores is in the range of 100 nm to 5//1 I1; [0010] vacuum coating treatment for The porous surface forms a colorless, transparent vacuum coating layer. [0011] Compared with the prior art, the above colored metal article first forms a porous surface on the metal substrate by high energy beam processing, and then forms the colorless and transparent vacuum coating layer on the porous surface by a vacuum coating method. Since the porous surface is distributed with the micropores, the vacuum coating layer has different thicknesses at different positions, i.e., the thickness of the vacuum coating layer at the micropores is greater than the thickness at which the micropores are not formed. Under the illumination of light, the vacuum coating layers of different thicknesses have different optical path differences between light reflection and refraction, so the vacuum coating layers at different positions can form different colors of interference light, so that the surface of the same colored metal product presents multiple colors. Has a better decorative effect. The preparation method of the colored metal product is simple in process. [Embodiment] Referring to Figure 1, a colored metal article 100 in accordance with a preferred embodiment of the present invention includes a metal substrate 10 and a layer of colorless transparent vacuum coating layer 30 formed on the metal substrate 10. [0013] The material of the metal substrate 10 may be aluminum, aluminum alloy, magnesium, magnesium alloy, titanium, titanium alloy, non-mineral steel, or the like. [0014] The metal substrate 10 includes a porous surface 12 formed by high energy beam etching, on which a plurality of micropores 122 are distributed. The aperture of the microhole 122 is divided into 099143586 Form No. A0101 Page 4 / Total 10 Page 0992075501-0 201223769 The cloth is in the range of 5~50. The depth of the micropores 122 is distributed in the range of 10 Onm to 5# Π1. [0015] The vacuum coating layer 30 is formed on the porous surface 12 of the metal substrate 1〇. Since the porous surface 12 is distributed with the micropores 122, the vacuum coating layer 30 partially or completely fills the micropores 122, so that the vacuum coating layer 30 has different thicknesses at different positions, that is, the vacuum coating layer 30 corresponds to the micropores. The thickness of the 122 position is greater than the thickness at which the micropores 122 are not formed. 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, and the like, and the metal vapor may be an oxide of titanium, chromium, aluminum, and zirconium. 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 50 to 150 nm, and when the thickness is 15 Onm or less, the vacuum mineral film layer 30 is nearly colorless and transparent, and when it exceeds 150 nm, the color of the vacuum coating layer 30 itself is It began to become more visible under the naked eye. When the vacuum coating layer 30 is formed of the metal oxide or non-metal oxide; its thickness is in the range of 50 nm to 2 " m. Q [0016] Before the formation of the hollow coating layer 30, the metal substrate 1 having the porous surface 12 is an aluminum primary color. After the porous surface 12 forms the vacuum coating layer 30, since the porous surface 12 is distributed with the micropores 122, the vacuum coating layer 30 has different thicknesses at different positions, that is, the thickness of the vacuum coating layer 30 at the micropores 122. It is larger than the thickness at which the micropores 22 are not formed. Under the illumination of light, the vacuum coating layers of different thicknesses have different optical path differences of reflection and refraction of light, so the vacuum bonding film layer 30 at different positions can form interference light of different colors, so that the same colored metal product 100 The surface is available in a variety of colors. 099143586 Form No. A0101 Page 5 of 10 0992075501-0 201223769 [0017] The method for preparing the above colored metal product 100 includes the following steps: [0018] First, the metal substrate 10 is provided. [0019] The metal substrate 10 is subjected to degreasing and degreasing cleaning. The degreasing and degreasing cleaning mainly comprises immersing the metal substrate 10 in an aqueous solution containing a degreasing agent. The degreaser can be a degreaser commonly used in commercially available metals. The concentration of the degreaser can be from 90 to 150 g/L. At the time of impregnation, the temperature of the aqueous solution holding the degreaser is between 20 and 30 °C. The time of the dipping is 1 to 6 minutes. The metal substrate 10 is washed with water after the degreasing treatment. [0020] The metal substrate 10 cleaned by the above degreasing and degreasing is subjected to high energy beam processing to form the porous surface 12 on the metal substrate 10. The high energy beam processing may be one of laser etching, electron beam etching, and focused ion beam etching. The plurality of micropores 122 are formed by the porous surface 12 formed by high energy beam processing. [0021] The high-energy beam processed metal substrate 10 is subjected to a vacuum coating process to form the colorless and transparent vacuum coating layer 30 on the porous surface 12. The vacuum coating treatment method may be sputtering, evaporation or ion plating. The vacuum coating step specific process may adopt a conventional coating process of a corresponding method, and the thickness of the vacuum coating layer 30 is controlled within the range by controlling the plating time during the coating process to ensure that the vacuum coating layer 30 is colorless and transparent. [0022] The method for preparing the above colored metal article is to form a porous surface 12 on the surface of the metal substrate 10 by high energy beam processing before forming the colorless and transparent vacuum coating layer 30, since the porous surface 12 is distributed with the micropores 122, The vacuum coating layer 30 has different thicknesses at different positions. Under the illumination of light, the vacuum coating layer 30 of different thicknesses is generated by the refraction and reflection of light. 099143586 Form No. A0101 Page 6 / Total 10 Page 0992075501-0 201223769 Light The path difference is different, and different optical path differences can produce different colors of interference light. Therefore, the vacuum coating layer 30 at different positions can generate interference light of different colors, so that the same colored metal product exhibits multiple colors and has a better decorative effect. The preparation method of the colored metal product is simple in process. BRIEF DESCRIPTION OF THE DRAWINGS [0023] FIG. 1 is a cross-sectional view of a colored metal article in accordance with a preferred embodiment of the present invention. [Main component symbol description] [0024] Colored metal product: 100 Ο [0025] Metal substrate: 10 [0026] Porous surface: 12 [0027] Microporous: 122 [0028] Vacuum coating layer: 30
099143586 表單編號Α0101 第7頁/共10頁 0992075501-0099143586 Form number Α0101 Page 7 of 10 0992075501-0