1342182 九、發明說明： 【發明所屬之技術領域】 本發明係有關散熱材料的創新，其中尤指一種以鎂合金 與高導熱金屬如金、鉑、銀、銅等其中之一合金緊密結合， 取其個別最好物理特性結合成鎂合金複合式散熱金屬，而可 達到吸熱快散熱也快之實用功效。 【先前技術】 按，散熱器的好壞攸關到電子產品的使用壽命，早期傳 統式的散熱器大多以鋁擠型所製成，其吸熱與散熱效果十分 有限，故實用性已不符新一代電子產品使用，為此業界乃積 極研發出以複合金屬製成的散熱器，譬如，我國公告第M3 846號專利，其為一種複合式散熱構件，係包括：一熱傳導 體，其含有一接熱板，界定一接熱面，以供跨置於一熱源上， 並於該接熱板上突設有多數傳導鰭片，以及；一散熱體，包圍 於S玄熱傳導體之各該傳導鰭片之外圍，而構成一内含傳導鰭 片之散熱鰭片，並令該熱傳導體之熱導效率高於該散熱體， 而該散熱體之散熱效率優於該熱傳導體者。 唯，市面上多種習知的複合式散熱構件，其外觀造形或 許各自不同’但直到目前其内部所採用的散熱體大都以鋁， 而其熱傳導體則都是選用銅來製成，主要是因銅金屬為優良 導熱體但散熱性相對慢，而鋁金屬導熱較銅慢，但散熱性相 對較銅快，基於此故有銅鋁結合材散熱體產品，但事實上其 5 產°°真正衫生之散熱效果，及對電磁波祕還不是最理租 在輪金屬㈣合金触合金她具錢度/重量比佳、 剛錄、耐轉、耐磨、可贼、電磁波屏蔽佳等之優點， ^金屬為近十辭才廣範研究制_材質，不像is金屬有 4百年歷史’故過去—直以來業界_其屬性均不瞭解不 但製程上較_，且加工過程又害怕可能產生燃燒或爆炸， 所以如果單純想糾上辆法來製賴複合式散觸件幾 w為不了此的事。因為鎮金屬是具高危險性的金屬易與氧反 應’在兩溫料狀態下與氧接觸容㈣燒，啊遇水會產生 氫氣’使燃燒加劇甚至爆炸。 目前雖有人噹試關合絲製造的賴構件但其製造 技術大多仍以壓鑄及半縣射出來成型，制流動性較差， 使得壓鑄製㈣於厚度越H成·度越高，產品不良 率亦相對提升；例如會有熱裂、氧化、流紋、強度不足以及 頂出變形之問顯發生’且緊密度不足導致影響散熱效能。 【發明内容】 有鑑於此，本發明人乃深入研究、設計，經多方實驗改 良後，終於有本發明之產生。 本發明者為金屬加工業者，所鍛造之產品包括：金、銀 、銅、鋁、鎂等各式各樣材料，在經不斷實驗後發現沖鍛過 的錤合金工件，當其受高歷外力後則内部晶相密度改變，退 ’m效果遠比紹合金工件還快，即其材料經由外部壓力壓縮 後’所得到均勻及緊密的晶相組織會提高熱傳及散妖之欵 果。 本發明之主要目的，在提供—種⑽合金與高導熱金屬 如金、銘、銀、鋼等其中之-合金緊密結合’取其個別最好 物理特性結合顧1合錢合式散熱金>1，而可達到吸舞快散 熱也快之實用功效。 h、 為達前述目的，本發明所設之一種鎮合金複合式散 熱金屬’其主要包括：—散熱面，其係以錢合金所構 成’-接觸面’為—高導熱金屬，其係選自金、始、 銀、銅等其中—種合金所構成，以及；-溶合層，係 界在散熱面與接觸面之間，由高溫加壓使兩者呈相溶 緊接之共晶組織；藉此’以高導熱金屬所構成之接觸 面可快速吸收發熱源，經溶合層傳至Μ合金構成之散 熱面以加快散熱，且使其製成品因壓力使結構分子内 聚更為緊密’表面可方便電鍍加工者。 為使能進一步瞭解本發明之構成内容及其他特 點，兹舉較具體之實施例，並配合附圖之實施例 說明如下所述。 、 【實施方式】 如第1〜6圖所示，本發明所設計之一種鎂合金複合 式散熱金屬其主要包括： 1342182 一散熱面1，其係以鎂合金所構成； 一接觸面2，為一高導熱金屬，其係選自金、细、 銀、銅等其中一種合金所構成，以及； 一溶合層3 1係界在散熱面1與接觸面2之間1由 高溫加壓使兩者呈相溶緊接之共晶組織； 實施時，該複合金屬製造加工方法可用如第3、 4圖之沖壓、鍛壓方式，或第5圖之壓延方式來達 成，且如要使散熱面1及接觸面2兩種金屬有效結合 或沖、或鍛，依其產品結構及尺寸大小差異，可於生 產前以電腦模擬5取得最佳之製造參數，後於具有溫 度控制之模具4中加壓製成。 如第6圖所示，該電腦模擬5，俗稱”模流分 析”，係依產品造型預先設計的模具圖，及預設之金 屬胚料圖，放至電腦檔案，並輸入金屬材料特性參數 及其它經驗值，由電腦軟體執行程式，分析金屬材料 於模具4内成型時之流動情形，再依模擬分析結果， 修改產品或模具造型，經此電腦模擬5方式其準確率 可達95%以上1可節省模具4開模失誤成本，及縮短 產品交期。 又生產時模具4的溫度控制，係於模具4内埋設 加熱系統4 1，外加一套溫度感控系統4 2，於溫度 管控箱43内輸入所需溫度，模具4溫度即能控制於 溫差内，其係先各自取鎂合金及銅合金半成品加熱至 8 1342182 一定溫度以上，待鎮合金及銅合金半成品軟化，再施 以一道事先由電腦模擬5取得之機械壓力4 4使其結 合成型，其中，若以沖壓或鍛壓方式還可依製品要求 不同，在接觸面2壓入散熱面1後可產生一深層厚度 21，其可界於0·5〜10mm之間。 另外，本發明在生產製造時上還有一項重點，如 眾所知鎂金屬具有可燃性，其燃點大約在6 0 0多度 左右，所以本發明在製造時如果要使兩種金屬複合中 間產生相溶緊接共晶組織之溶合層3，其對鎂合金加 熱溫度不能過高否則會產生危險，最佳大約介在2 0 0 C °〜3 5 0 C °之間，而銅合金則令加溫超過鎂 合金燃點溫度，最佳約2 0 0 C°〜8 0 0 C°待鎂 合金及銅合金半成品軟化，置於模具4内受壓結合成 型時，其溫度較高的銅合金在壓入溫度較低的鎂合金 中後，銅合金還會再對鎮金屬進行熱交換間接加溫， 促使鎂合金溫度更為提升，令兩合金更為相溶呈共晶 狀態緊接一體，但此一加溫結果因為也是事先透過有 效電腦模擬5所產生，故在製造時可精準控制，使其 永遠不致高過鎂的燃點，以確保製造生產上的安全無 所顧慮。 藉此，使製成之鎂合金複合式散熱金屬，可以用 高導熱金屬所構成之接觸面2來快速吸收發熱源，經 溶合層3的共晶組織傳至鎂合金構成之散熱面1以加 9 1342182 快散熱，其中，各種加工製造方法，又以鍛壓製品散 熱效能最佳，其金屬製品因壓力擠壓，可使其組織更 紮實，熱能傳導及散熱更快。而且其製成品因壓力使 結構分子内聚更為緊密不怕碰水，故表面可方便電鍍 加工，用傳統的工藝手段即可在散熱面輕易增加一電 鍍層（圖未示）以增進產品的美觀。 除此之外，請參第7圖所示，本發明複合金屬製 造加工方法，當然也可採用傳統固定元件6如铆釘、 (或螺釘、凹凸嵌扣等圖未示之各種方式）來使接觸面 2與散熱面1緊貼一體，其成品相同也可取得吸熱快 及散熱也快之實用功效。 本發明只要是有散熱需求的產品都可應用，其具有 如下優點： 1、鎮金屬具熱輕射及低熱殘留特性，為目前所知最佳散熱金 屬，與高導熱性的銅金屬結合，形成金屬内部熱對流，可 大幅提昇散熱效能，較傳統鋁銅複合金散熱體為優。 2、本發明的有效結合可成為最有效率的散熱體，以增強 發熱源產品壽命及效能。而且鎂金屬不但具超朔性， 可鍛壓造型複雜產品，鎂金屬又為目前所知最輕金 屬，故也可使產品輕量化。 1342182 、鍛壓製品具高強度，較傳統壓鑄或擠型製品為優，鍛 壓製品組織紮實，故其導熱及散熱效能可較別種製程 產品再提昇20%以上效能。 良τ'上所述，本發明結構組合新穎功能遠勝習式具進步性 及產，利用價值，且其成品已經成功製出確實具有如實之功 效，爰依法提出發明專利申請。 上述之具體實施例是用來詳細說明本發明之目的、 〜U及功效，僅為本發明之部分實施例，當不能以此限 發明之實施範圍’凡熟悉此類技藝之人是根據上述 ° ’及以下申請專利範圍所載之結構特徵及功效上所 ^等效性之變換及修改’其本質未脫離本發明之精神範 可者s應包含在本發明之專利範圍。1342182 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to innovations in heat dissipating materials, in particular, a method in which a magnesium alloy is closely bonded to a highly thermally conductive metal such as gold, platinum, silver, copper or the like. Its individual best physical properties are combined into a magnesium alloy composite heat-dissipating metal, which can achieve the practical effect of fast heat absorption and fast heat dissipation. [Prior Art] According to the quality of the heat sink, the life of the electronic product is mostly made of aluminum extrusion. The heat absorption and heat dissipation effects are very limited, so the practicality is not in the new generation. For the use of electronic products, the industry is actively developing a heat sink made of composite metal. For example, China Patent No. M3 846, which is a composite heat dissipating member, includes: a heat conductor, which contains a heat. a plate defining a heat receiving surface for straddle a heat source, and protruding a plurality of conductive fins on the heat receiving plate, and a heat radiating body surrounding each of the conductive fins of the S-Xuan thermal conductor The heat dissipation fins of the heat conducting body are higher than the heat radiating body, and the heat radiating efficiency of the heat radiating body is superior to that of the heat conducting body. However, a variety of conventional composite heat dissipating members on the market may have different appearances. However, until now, the heat sinks used in the interior are mostly made of aluminum, and the heat conductors are made of copper, mainly because of Copper metal is a good thermal conductor but the heat dissipation is relatively slow, while aluminum metal conducts heat slower than copper, but the heat dissipation is relatively faster than copper. Therefore, there is a copper-aluminum composite heat sink product, but in fact its 5 production °° true shirt The heat dissipation effect of the raw, and the secret of the electromagnetic wave is not the most reasonable rent in the wheel metal (four) alloy touch alloy, she has the advantages of good value / weight ratio, just recorded, resistant to rotation, wear-resistant, thief, electromagnetic shielding, etc. ^ Metal is a ten-year-old research system _ material, unlike is metal has a history of 400 years 'so the past - straight from the industry _ its properties are not understood not only in the process, and the process is afraid of possible burning or explosion Therefore, if you simply want to get rid of the law, you can't rely on the composite contact parts. Because the town metal is a high-risk metal, it is easy to react with oxygen. In the two-temperature state, it is in contact with oxygen (four), and when it meets water, it will produce hydrogen, which will intensify combustion and even explode. At present, although some people try to manufacture the Lai components manufactured by Hefei silk, most of their manufacturing techniques are still formed by die casting and semi-county injection. The liquidity is poor, which makes the die casting system (4) the higher the thickness, the higher the product defect rate. Relatively elevated; for example, there will be thermal cracking, oxidation, flow pattern, insufficient strength, and the occurrence of ejection deformation, and insufficient tightness will affect the heat dissipation performance. SUMMARY OF THE INVENTION In view of the above, the present inventors have intensively studied and designed, and after a plurality of experiments have been improved, finally, the present invention has been produced. The inventor is a metal processing industry, and the forged products include: various materials such as gold, silver, copper, aluminum, magnesium, etc., after continuous experimentation, it is found that the forged yttrium alloy workpiece is subjected to high-altitude external force. After that, the density of the internal crystal phase changes, and the effect of retreating 'm is much faster than that of the alloy workpiece, that is, the uniform and tight crystal phase structure obtained after the material is compressed by external pressure will improve the heat transfer and the effect of the demon. The main object of the present invention is to provide a kind of (10) alloy which is closely combined with a high thermal conductivity metal such as gold, inscription, silver, steel, etc., and combines the best physical properties of the individual with the combination of the best and the same. And can achieve the practical effect of fast dancing and fast cooling. h, in order to achieve the above objective, the present invention provides a town-alloy composite heat-dissipating metal' which mainly comprises: a heat dissipating surface, which is composed of a carbon alloy, a 'contact surface', a high thermal conductivity metal, which is selected from the group consisting of Gold, beginning, silver, copper and other alloys, and; - the fusion layer, between the heat dissipation surface and the contact surface, is pressurized by high temperature to make the two are in close proximity to the eutectic structure; Thereby, the contact surface formed by the high thermal conductivity metal can quickly absorb the heat source, and the fused layer is transmitted to the heat dissipating surface formed by the bismuth alloy to accelerate heat dissipation, and the finished product is cohesively made by the pressure of the structural molecules. The surface is convenient for electroplating processors. To further understand the present invention and other features, the specific embodiments are described below with reference to the accompanying drawings. [Embodiment] As shown in Figures 1 to 6, a magnesium alloy composite heat dissipating metal designed by the present invention mainly comprises: 1342182 a heat dissipating surface 1 which is composed of a magnesium alloy; and a contact surface 2 a highly thermally conductive metal consisting of one of an alloy selected from the group consisting of gold, fine, silver, copper, and the like; and a fused layer 31 bounded between the heat dissipating surface 1 and the contact surface 2 The eutectic structure is in close proximity to each other; in practice, the composite metal manufacturing processing method can be achieved by the stamping, forging method of FIG. 3 and FIG. 4, or the calendering method of FIG. 5, and if the heat dissipating surface 1 is to be And the contact surface 2 two kinds of metals can be effectively combined or punched or forged. According to the difference in product structure and size, the best manufacturing parameters can be obtained by computer simulation 5 before production, and then pressurized in the mold 4 with temperature control. production. As shown in Figure 6, the computer simulation 5, commonly known as "mold flow analysis", is based on the pre-designed mold drawing of the product shape, and the preset metal blank drawing, placed in the computer file, and input the characteristic parameters of the metal material and Other experience values are executed by the computer software to analyze the flow of the metal material in the mold 4, and then modify the product or mold shape according to the simulation analysis result. The accuracy of the computer simulation 5 can reach 95% or more. It can save the cost of mold 4 opening error and shorten the delivery time of the product. In addition, the temperature control of the mold 4 is carried out in the mold 4, and the heating system 4 1 is embedded in the mold 4, and a temperature sensing system 42 is added, and the required temperature is input in the temperature control box 43, and the temperature of the mold 4 can be controlled within the temperature difference. The first part of the magnesium alloy and the copper alloy semi-finished product are heated to a temperature above 8 1342182, and the alloy and the copper alloy semi-finished product are softened, and then a mechanical pressure obtained by computer simulation 5 is applied to form a combination. If the stamping or forging method can also be different according to the product requirements, after the contact surface 2 is pressed into the heat dissipating surface 1, a deep layer thickness 21 can be produced, which can be between 0. 5 and 10 mm. In addition, the present invention has an important point in the production and manufacture. As is known, magnesium metal has flammability, and its ignition point is about 600 degrees or so. Therefore, if the present invention is to produce two metal composites during manufacture, It is compatible with the eutectic layer 3 of the eutectic structure, and the heating temperature of the magnesium alloy should not be too high or it would be dangerous, preferably between about 200 °C and 3,500 °C, while the copper alloy The heating temperature exceeds the ignition temperature of the magnesium alloy, and the optimum temperature is about 200 ° C to 80 ° C. The magnesium alloy and the copper alloy semi-finished product are softened. When the mold is placed in the mold 4, the copper alloy having a higher temperature is in the mold. After being pressed into the magnesium alloy with lower temperature, the copper alloy will further heat exchange the town metal indirectly, which will promote the temperature of the magnesium alloy to increase, making the two alloys more compatible and eutectic, but This heating result is also generated by the effective computer simulation 5 in advance, so it can be precisely controlled during manufacture so that it never exceeds the ignition point of magnesium to ensure safety in manufacturing and production. Thereby, the prepared magnesium alloy composite heat dissipating metal can be quickly absorbed by the contact surface 2 composed of the highly thermally conductive metal, and the eutectic structure of the fused layer 3 is transmitted to the heat dissipating surface 1 composed of the magnesium alloy. Add 9 1342182 fast heat dissipation, among which, various processing and manufacturing methods, and forging products have the best heat dissipation performance, and the metal products are pressed by pressure to make the structure more solid, and the heat conduction and heat dissipation are faster. Moreover, the finished product is more tightly cohesive due to pressure, and the surface can be easily plated. The conventional process can easily add a plating layer (not shown) on the heat dissipating surface to enhance the appearance of the product. . In addition, as shown in FIG. 7 , the composite metal manufacturing processing method of the present invention can of course also be contacted by conventional fixing elements 6 such as rivets, (or screws, embossing, etc., etc.). The surface 2 and the heat dissipating surface 1 are closely integrated, and the finished product can also achieve the practical effect of fast heat absorption and fast heat dissipation. The invention can be applied as long as it has the heat dissipation requirement, and has the following advantages: 1. The town metal has the characteristics of heat and light heat and low heat residue, and is the best heat dissipation metal known at present, combined with high thermal conductivity copper metal to form. The internal heat convection of the metal can greatly improve the heat dissipation performance, and is superior to the conventional aluminum-copper composite gold heat sink. 2. The effective combination of the present invention can be the most efficient heat sink to enhance the life and performance of the heat source product. Moreover, magnesium metal is not only highly sturdy, but also can be forged and shaped. The magnesium metal is the lightest metal known at present, so it can also make the product lighter. 1342182, forging products with high strength, superior to traditional die-casting or extruded products, solid forged products, so its heat conduction and heat dissipation performance can be improved by more than 20% compared with other process products. As described in the good τ', the novel function of the structural combination of the present invention is far superior to the progressive, productive, and utilizing value of the formula, and the finished product has been successfully produced to have a realistic effect, and the invention patent application is filed according to law. The specific embodiments described above are intended to describe the purpose of the present invention, and are merely illustrative of the embodiments of the present invention, and the scope of the invention is not limited by the scope of the invention. The changes and modifications of the structural features and efficacies contained in the following claims are intended to be included in the scope of the present invention without departing from the spirit and scope of the invention.
1] 1342182 【圖式簡單說明】 第1圖·為本發明之立體外觀圖。 第2圖·為本發明之剖面圖。 第3圖·為本發明待加工品置在模具中之示意圖。 第4圖·為本發明置在模具中之加工示意圖。 第5圖·為本發明以壓延製造之加工示意圖。 第6圖·為本發明之製造方塊圖。 第7圖·為本發明以組合方式結合之示意圖。 【主要元件符號說明】 1 散熱面 2 接觸面 2 1 深層厚度 3 溶合層 4 模具 4 1 加熱系統 4 2 溫度感控系 4 3 溫度管控箱 統 44 機械壓力 5 電腦模擬 6 固定元件 121] 1342182 [Simplified illustration of the drawings] Fig. 1 is a perspective view of the present invention. Fig. 2 is a cross-sectional view showing the present invention. Fig. 3 is a schematic view showing the article to be processed placed in a mold according to the present invention. Fig. 4 is a schematic view showing the processing of the present invention in a mold. Fig. 5 is a schematic view showing the processing of the invention by calendering. Fig. 6 is a block diagram of the manufacture of the present invention. Figure 7 is a schematic illustration of the combination of the invention in combination. [Main component symbol description] 1 Heat dissipating surface 2 Contact surface 2 1 Deep layer thickness 3 Dissolving layer 4 Mold 4 1 Heating system 4 2 Temperature sensing system 4 3 Temperature control box system 44 Mechanical pressure 5 Computer simulation 6 Fixing components 12