TW572800B - Method for producing heat-transfer super-conductive block or component by powder metallurgy - Google Patents
Method for producing heat-transfer super-conductive block or component by powder metallurgy Download PDFInfo
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572800 五、發明說明(1) 〜 ~—____________ 【發明領域】 本發明係提供一 塊或零件之方法了 =種,用粉末冶金技術製作熱傳導超導 能而適合於任付#错以提昇導熱塊、片、或零件的導熱性 佳散熱效果者。而要媒介快速傳熱、散熱之處,或提供較 【發明背景】 品所t七產業界針對電腦中央處理器(CPU )戒高熱源產 質1採用之放熱裝置,大多是利用具有高傳熱效率的鋁材 二政熱片(例如台灣公告第4 5 94 6 9號專利案所製造的散熱 駿)的基座接觸於熱源,以將熱量吸收並傳遞到散熱片的 轉片上,再利用風扇吹出冷空氣將散埶片上的熱量排除 者。 …、 由於現今高效率之CPU所產生的高熱已般傳統的 1呂材質散熱片所能快速傳導、排除,因而利用導熱效率較 銘金屬約高出一倍的銅金屬來傳導CPU的熱量乃是另一種 選擇;然而,鋁金屬的密度約2. 7g/cm3,而銅金屬的密度 為8.93g/cm3(相同體積的銅金屬重量約為鋁金屬的二倍 ),因此,若完全採用銅金屬製造成散熱片’則會因為銅 的重量過重無法通過落地實驗,或是裝在主機板上過久後 造成主機板變形。目前市面上所謂具有銅底的链材質散熱 片,乃是以鍛壓或焊接的技術將預先成型好的銅板欲固於 銘材質散熱片的基座底面;台灣專利公告第4 5 9 4-6 9號亦屬 於將銅板嵌固於鋁材質散熱片的設計。572800 V. Description of the invention (1) ~ ~ ____________ [Field of the invention] The present invention provides a method or a method of making a piece or a part, and uses powder metallurgy technology to make heat conduction superconducting energy, which is suitable for any payment # fault to enhance the heat conduction block, Sheets or parts with good thermal conductivity. Where the medium needs to transfer heat and heat quickly, or to provide more background than the [Background of the Invention] The seven industries in the product industry use the computer's central processing unit (CPU) or high-heat source products1. The base of an efficient aluminum heat sink (such as the heat sink manufactured by the Taiwan Patent No. 4 5 94 6 9) contacts the heat source to absorb and transfer the heat to the turntable of the heat sink, and then the fan is used. Blow out cold air to remove heat from the diffuser. …, Because the high heat generated by today ’s high-efficiency CPUs is as fast as the traditional 1-Lu heat sink, which can be quickly conducted and eliminated, the use of copper metal that has about twice the thermal conductivity than Ming metal to conduct heat from the CPU is Another option; however, the density of aluminum metal is about 2.7g / cm3, and the density of copper metal is 8.93g / cm3 (the copper metal of the same volume weighs about twice the weight of aluminum metal), so if copper metal is used entirely Manufactured into a heat sink will cause the ground plate to fail the ground test due to the heavy weight of copper, or the motherboard may be deformed after being installed on the motherboard for too long. At present, the so-called chain material heat sink with a copper bottom on the market is to use a forging or welding technique to fix a pre-formed copper plate to the bottom surface of the base of the heat sink; the Taiwan Patent Bulletin No. 4 5 9 4-6 9 It also belongs to the design that the copper plate is embedded in the aluminum heat sink.
第4頁 572800 五、發明說明(2) 雖然將小厚度的銅板嵌植於鋁材質的散熱片具有在較 輕的重量條件下提昇導熱性能的效果,但如果能將具有更 高導熱性質的物體結合在金屬材質之類的導熱塊、片、或 零件,則更能使導熱塊、片、零件的導熱性能及散熱性能 獲得進一步的提昇;但傳統上受限於技術條件的原因,並 沒有提供有效將高導熱性質的物體與金屬材質結合的方 法。 【發明之綜合說明】 本發明之主要目的在提供一種應用粉末冶金技術製作 熱傳導超導塊或零件之方法,其係將具有高導熱性質的熱 傳導超導管、體與具有良好導熱性質之金屬燒結在一起, 並且可以進一步成型為導熱塊、導熱片或機械零件,以做 為熱源與散熱元件之間的導熱媒介,或直接做為導熱兼散 熱的元件。 本發明之次一目的在提供一種應用粉末冶金技術製作 熱傳導超導塊或零件之方法,藉由所述之粉末冶金技術而 製成的導熱塊、片、零件具有更優異的導熱性能,因而十 分適合於用來連接於需要傳導熱量之元件之間,據以獲得 高效率的導熱效果。 基於此,本發明所提供之應用粉末冶金技術製作熱傳 導超導塊或零件之方法,首先必須選用熔點高於粉末冶金 材料燒結溫度之熱傳導超導管、體,將該熱傳導超導管、 體依需求加工彎曲成型後置於成型模内,然後將金屬粉末Page 4 572800 V. Description of the invention (2) Although a small thickness copper plate embedded in an aluminum heat sink has the effect of improving thermal conductivity under lighter weight conditions, if an object with higher thermal conductivity can be used Combined with thermally conductive blocks, sheets, or parts such as metal materials, the thermal conductivity and heat dissipation performance of thermally conductive blocks, sheets, and parts can be further improved; however, traditionally limited by technical conditions, it has not been provided. Method for effectively combining highly thermally conductive objects with metallic materials. [Comprehensive description of the invention] The main purpose of the present invention is to provide a method for manufacturing a thermally conductive superconducting block or part by applying powder metallurgy technology, which is a method of sintering a thermally conductive superconducting tube, a body with high thermal conductivity, and a metal with good thermal conductivity. Together, it can be further formed into a thermally conductive block, a thermally conductive sheet, or a mechanical part, as the thermally conductive medium between the heat source and the heat-dissipating element, or directly as a heat-conducting and heat-dissipating element. A secondary object of the present invention is to provide a method for manufacturing a thermally conductive superconducting block or part by applying powder metallurgy technology. The thermally conductive block, sheet, and part made by the powder metallurgy technology have more excellent thermal conductivity, so It is suitable for connecting between components that need to conduct heat, so as to obtain high-efficiency heat conduction effect. Based on this, the method for manufacturing thermally conductive superconducting blocks or parts using powder metallurgy provided by the present invention must first select a thermally conductive superconducting tube and body with a melting point higher than the sintering temperature of the powder metallurgy material, and process the thermally conductive superconducting tube and body as required. After bending, it is placed in the mold, and then the metal powder is
572800 五、發明說明(3) 與高分子黏結劑的混合材料以射出成型方式結合於熱傳導 超導管而成型為生胚,然後依序經過溶劑脫脂、熱脫脂及 燒結等程序後即可冷卻成型為成品。 茲配合下列圖式將本發明之其它目的及功能做進一步 的說明。 【實施例說明】 參閱第一圖之流程圖所示,本發明所提供之應用粉末 冶金技術製作熱傳導超導塊或零件之方法,係包括有以下 的步驟: a. 選用熱傳導超導管、體,且該熱傳導超導管、體之熔點 高於粉末冶金材料之燒結溫度。 b. 將該熱傳導超導管、體依需求加工彎曲成型。 c. 將該熱傳導超導管、體置入成型模内。 d ·將金屬粉末與高分子黏結劑之混合材料,配合熱傳導超 導管、體以射出成型方式射出結合成生胚。 e.溶劑脫脂。 ί.熱脫脂。 g.燒結。 a.冷卻成型,完成成品。 其中的熱傳導超導管、體係採用可自由彎折或變形之 金屬管體(例如銅、鋁或其它金屬管體),並在管、體的 内部已經充填或包含具有高速熱傳導性能之材料者,例 如:572800 V. Description of the invention (3) The mixed material with polymer binder is combined with heat-conducting superconductors by injection molding to form a green embryo, and then it can be cooled and molded into a degreasing order after solvent degreasing, thermal degreasing and sintering. Finished product. Other objects and functions of the present invention will be further explained with the following drawings. [Explanation of the Example] Referring to the flowchart of the first figure, the method for manufacturing a thermally conductive superconducting block or part using powder metallurgy provided by the present invention includes the following steps: a. Selecting a thermally conductive superconducting tube and body, And the melting point of the heat-conducting superconducting tube and body is higher than the sintering temperature of the powder metallurgy material. b. Process the heat-conducting superconducting tube and body as required. c. Place the heat-conducting superconduit and the body into a mold. d. The mixed material of metal powder and polymer binder is combined with the heat-conducting super-catheter and the body to be injection-molded to form a green embryo. e. Solvent degreasing. ί. Hot degreasing. g. Sintering. a. Cool forming to complete the finished product. The thermally conductive superconducting tubes and systems adopt metal tubes (such as copper, aluminum or other metal tubes) that can be bent or deformed freely, and the inside of the tubes or bodies has been filled or contains materials with high-speed thermal conductivity, such as :
572800 五 、發明=明(4) 化/物材料,例如:_銅氧化二 ;b^(BSCC0 )^V; Τ-ί 3、其它Ϊ! 純水或其它有機超導材料。 運到回速熱傳導性材料。 十 料漏出i:f葬!的兩端加工封閉,…所述的… 其所應導管1;以上所述無機高超 =時ί生之相變“快速❹,因傳輸分 埶端傳於…、傳導超導官、體J因熱傳導超導管、體由 &傳輸至冷端之傳輸時間很短,因此熱端與 = =,可達到最佳導熱效果。經實驗證實, 上。的五倍以更較一般鋁金屬之傳熱速度快十倍以 ::前述本發明的方法,其可以先將熱傳 ' = ;彎形=其它立體形狀後,再將單支或=支 :專導超導管、體放入成型模中,然後將金屬粉末盥高分 熱^ 2劑的混合材料以射出成型技術射入-成型模内而與該 教2超!管結合成生胚;胃生胚#依序麟溶劑脫脂、 …、脫月曰及燒結等程序,即可冷卻成型而完成成品。572800 Fifth, invention = Ming (4) chemical / physical materials, such as: _ copper oxide; b ^ (BSCC0) ^ V; Τ-ί 3, other Ϊ! Pure water or other organic superconducting materials. Shipped to a fast-return thermally conductive material. Ten expected to leak i: f funeral! The two ends of the processing are closed, the ... the corresponding catheter 1; the above-mentioned inorganic superb = the phase transition of "time", "quickly, because the transmission branch end is transmitted to ..., the conductive superconductor, the body J The heat transfer time of the superconducting superconducting tube and body from the & to the cold end is very short, so the hot end and = = can achieve the best heat conduction effect. It is confirmed by experiments that the heat transfer rate is five times higher than that of ordinary aluminum metal. Ten times faster: The method of the present invention described above, which can first transfer heat '=; bend = other three-dimensional shapes, and then single or = branch: special superconducting catheter, body into the mold, Then, the mixed material of metal powder and high heat ^ 2 agent is injected into the molding mold by injection molding technology and combined with this teaching 2! Tubes are combined into raw embryos; stomach raw embryos # sequence sequence Lin solvent degreasing, ..., degreasing The month and sintering procedures can be cooled to complete the finished product.
第7頁 572800 五、發明說明(5)Page 7 572800 V. Description of the invention (5)
雖然熱傳導超導管、體之導熱率(THERMO CONDUCTIVITY )超過20,0〇〇W/m2 -K而有甚高的導熱效率, 但因為熱傳導超導管、體的外殼本身是空心的金屬管體, 無法具有良好的強度,容易變形,而且成品不容易附著在 各種物體上;因此,本發明乃利用粉末冶金技術將金屬粉 末材料燒結於熱傳導超導管、體而形成熱傳導超導塊、 片,甚至直接成型為機械零件,熱傳導超導塊、片、零 件的導熱率仍可達到5, 〇〇〇w/nf _κ, 4〇〇W/ni-K之導熱率高出甚ρ 4金屬不會超i 所述的金屬粉末射出成型, 子黏結劑混合後,再將1 種將金屬粉末與高刀 性之混合材料’鈇後以^ 〇…、而具有類似塑膠材料的流動 型模内以結:放該混合材料射入成 生胚。射出成型後的生、、.、、、傳導超導管、體以形成 以去除高分子黏結再=溶劑脫脂與熱脫脂的過輕 有優異機械與物理:質:=結後即可得到高…具 種燒結後的導熱塊、月2,熱塊、片或零件,·藉由此 地將熱量經由熱傳導^二,觸到熱源時,可以很快速 導熱塊、[零件的導專導到金屬的其它部位而提存 藉由前述本發明之士 ^ w 主要是用於將熱源的執製成的熱超導導熱塊、片, 導熱效率者;例如,复' :傳導到另外的散熱元件,以提存 觸於熱源,而熱超導導二二將熱超導導熱塊、片的一端接 或機殼等部位,以將執::播片的另-端則接觸於散熱片 ,、‘、里傳導到較容易散熱的元件再配合Although the thermal conductivity of the heat-conducting superconducting tube and the body (THERMO CONDUCTIVITY) exceeds 20,000 W / m2 -K, it has a very high heat-conducting efficiency, but because the shell of the heat-conducting superconducting tube and the body itself is a hollow metal tube, it cannot Has good strength, easy to deform, and the finished product is not easy to adhere to various objects; therefore, the present invention uses powder metallurgy technology to sinter metal powder materials in heat-conducting superconductors and bodies to form heat-conducting superconducting blocks, sheets, and even directly shape them. For mechanical parts, the thermal conductivity of thermally conductive superconducting blocks, sheets, and parts can still reach 5, 000w / nf _κ, and the thermal conductivity of 400W / ni-K is much higher than ρ. 4 Metals will not exceed i After the metal powder is injection-molded, the sub-binder is mixed, and then a mixture of the metal powder and the high-knife material is used, and then ^ 〇 ..., and a flow-type mold with a similar plastic material is formed into a knot: put the The mixed material is injected into the adult embryo. After injection molding, the raw, ...., conductive superconducting tube, body is formed to remove polymer adhesion, and then = solvent degreasing and thermal degreasing are too light. Excellent mechanical and physical: Quality: = high can be obtained after knotting ... This kind of sintered heat-conducting block, heat block, sheet, or part can be used to conduct heat through the heat, and when it touches the heat source, the heat-conducting block can be quickly moved. The deposit by the aforementioned person of the present invention ^ w is mainly used for thermally conductive thermally conductive blocks and sheets made of heat sources, heat conduction efficiency; for example, complex ': conducted to another heat dissipation element, to deposit contact Heat source, and the thermal superconductor 22 will connect one end of the thermal superconducting block, the casing or the casing to the other end of the :: the other end of the broadcast film is in contact with the heat sink. Easy-to-dissipate components
D/25UU 、發明說明(6) 扇進行散熱,其適合 散熱元件的設備,或 效果者,因此,本發 成3 D立體的形狀, 形狀的熱超導導熱塊 利用前述本發明之 為機器或機具結構的 生的熱量得以直接由 八以上所述者僅為用 止圖據以對本發明作任 同之發明精神下所作有 應包括在本發明意圖保 五 風 設 熱 曲 種 成產 是t要 明對於 以因應 、片或 方法所 一部份 外殼所 以解釋 何形式 關本發 護之範 所在之 將熱量 熱傳導 不同環 零件。 製成之 ,使得 吸收並 本發明 上之限 明之任 疇。 位置較狹小 再分散傳導 ~ #營、體 境的需要而 零件,可以 機器或機具 散發。 之較佳實施 制,是以, 何修飾或變 而不易裝 以提昇散 也可以彎 燒結成各 直接組裝 運轉時所 例,並非 凡有在相 更,皆仍D / 25UU, description of the invention (6) The fan performs heat dissipation, which is suitable for the device or effect of the heat dissipation element. Therefore, the present invention has a 3D three-dimensional shape, and the shape of the thermal superconducting block uses the aforementioned invention as a machine or The heat generated by the structure of the implement can be directly used by the above-mentioned persons only for the purpose of the invention. It should be included in the spirit of the invention, which should be included in the invention. Explain that for the part of the shell that is a response, a sheet, or a method, it explains how the form of this hair care is related to the different parts of the ring that conduct heat. It is made to absorb and limit the scope of the invention. The location is relatively small and then dispersed to conduct ~ # camp, the needs of the environment and parts, can be distributed by machines or implements. The preferred implementation system is based on how to modify or change it, but it is not easy to install to lift it. It can also be bent and sintered into various direct assembly operations.
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