TWI271238B - Device and method for fabricating metal-matrix composite - Google Patents

Device and method for fabricating metal-matrix composite Download PDF

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TWI271238B
TWI271238B TW95111567A TW95111567A TWI271238B TW I271238 B TWI271238 B TW I271238B TW 95111567 A TW95111567 A TW 95111567A TW 95111567 A TW95111567 A TW 95111567A TW I271238 B TWI271238 B TW I271238B
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Taiwan
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matrix composite
metal matrix
preform
metal
composite according
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TW95111567A
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TW200735983A (en
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Jen-Dong Hwang
Jiann-Jong Su
Chih-Jong Chang
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Ind Tech Res Inst
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Abstract

A device for fabricating metal-matrix composite comprises a shell with a receiving entry for preforms of the metal-matrix composite and an inner wall, and a heat insulation layer disposed or coated on the inner wall for keeping the preform's temperature when casting.

Description

127123,8 九、發明說明: 【發明所屬之技術領域】 本發明有關於一種金屬基複合材的製造方法,而特別 有關於利用一種絕熱保護裝置來製造金屬基複合材的方 法0 【先前技術】 隨著電子元件及相關產品逐漸朝向輕薄化、小型化、高功 成化和尚頻化的趨勢發展’使晶片的發熱密度愈來愈高,因此 電子散熱的問題顯得愈趨嚴重與棘手。傳統使用的散熱材料, 如Al,Cu,Cu-W等在此趨勢發展下漸無法滿足電子散熱及福 裝的材料需求,而必須尋求兼具高熱傳導率、低熱膨脹係數及 低密度等特性的先進材料。而這必須運關二独上的材料组 合才能達到上賴特性要求,這也導致了—些先進熱管理材料 的發展。在所有先進熱管理材料中,碳纖維強化複合材料 (Carb〇nfiberreinforcedcomp〇sites)由於具有高熱傳導,同時具 有比銘、銅等具有較低的密度與鱗祕數,因此—直被視為 頗具潛力的熱管理材料。這主要是碳纖_化的複合材料,所 添加的碳纖維本身即具有優越的導熱性與導電⑫且敎膨服 ^數極低,因蘭製作的複合材敎具有切的熱性能與電 性。 常用來製作金屬基複合材料的製程有·⑴真^ =透法,⑺減鎳造法和⑶熱壓法。真空摩力法係將陶 究顆柳C,服為〇3,—)、連續及不連續纖維:添加黏結劑 〇178-A21456TWF(N2);P05940086TW;kingandchen 5 ^7123,8 的模呈在力L 成預形體(pref〇rm)。將農有預形體 ==熱爐預熱,並將⑽吉劑燒掉,燒掉之氣體以真空抽 :衣置排出’在此同時將渗透之金屬(A1,Mg,Cu 先 坩堝内熔解至液相線以上, )在 (△p)將全m再 _鍵立的壓力差 預开m力:人内的預形體内,最後再將滲透完成的 2體私出加織冷卻_,拆模取出金屬基複合材料。此種 1雖然能在高溫下進行_壓力滲透,可用來製造大尺寸及 率的金屬基複合材料,不過因模具及預形體需長時間 透金聽的液相線上下,且滲透完錢複合材料凝固 速率悛’目此其製造流程從A空顏升溫、保溫、抽直空、液 =透、降溫顺觀出,整個生產流程之太長達數小 任,生產成本偽回。而真空熱壓(乂扣皿 是製作金屬基觀最典型的擴散鍵結法。摘綠、銅、鎮、 f、鎳基複合材料方面,都有很好的成果。典_ VHP製程 疋先將強化材(如連續及不連續纖維、Sic,BN,AW)3,—)與基 材起放入熱壓权具内,再放入真空熱壓機内進 程。熱顧具放人真^鐘爐之後絲纽再 温 進仃/、空熱壓,之後保持特定壓力慢慢冷卻。此法具有參 2控制、動作快、易再現、品質高的優點,主要缺點為製程 產週期太長、成本昂貴及不易做大件物品。 A另她廉價的製造方法是擠壓鑄造法,其方法是將強化 二成獅體,再將細彡體置人—加紐㈣賴域近渗透 基材的液姆上下,接著觸雜放人漏模制,合模後隨 〇178~A2t 456TWF(N2);P〇5940〇86TW;kingandchen 1271238 . ‘ 即由料筒外部施加動進_鱗造 。 簡單及生產週期短(數分鐘),缺點是預形體=二點是製程 具的過程中溫度會I速下^ <、汔、爐取出到模 ㈣旧/ΙΓ 同時放入模穴後當預形體直接接 觸顺仁後熱很快散失,而使金屬液與預型體的 t接接 過观。另—方面預形體在高溫下預熱亦時常 ^巾#民目專機㈣現有幾师仙基複合材的 ^如雇53號專利以吹入氧氣入銘液中使其產生仰3分 巾’再直接將其倒人料筒巾_鑄造成形,此方式雖 ,、、'、#-般添加強化難人_中攪拌分散的步驟,但無法適 用在各種強化材,如簡,Sic,石墨粉或各種石炭纖維;而在第 841專利巾揭路將超微細陶究顆粒以適量之蒸德水及分散 劑f製成懸浮液,再以超音波處理來改善強化顆粒均勻分散之 問題、,不過其能添加的強化顆粒體積分率通常無法超過·, 且無法用來製作以石墨纖維或石墨粉為強化材的金屬基複合 材料’且這些強化材—碰到高溫熔湯即激烈氧化。 、由國外專利檢索發現一般用來製造金屬基複合材料的方 有府省里工本ji元及其衍生創立的MMCC(Metal Matrix Cast Composites )公司所使用的真空壓力渗透法,纟US6,148,899 專利揭露的真空壓力滲透法是·· (a)·將陶兗顆粒、連續及不連續纖維,添加黏結劑混合後 直接置入模穴内形成預形體。 ()·衣有預形體的模具在加熱爐預熱,並將黏結劑燒掉, 〇17B^U5aTWP(N2);P〇594〇〇86Tw;k^ 1271238· 而燒掉之氣體以真空抽氣裝置排出。 ⑹·欲滲透之金屬(Al,Mg,Cu,NiAl3___)先在坩堝内熔 解至液相線以上’再以掛堝與模穴所建立的壓力差將金屬液滲 透入模具内的預形體内。 (d) .將滲透完成的預形體移出加熱爐冷卻凝固。 (e) ·拆模取出金屬基複合材料。 ,在US 6,318,442專利揭露在滲透模穴内置入預形體,加熱 並保持低壓’將溶融金屬熔湯以壓力灌入滲透模中以製造複合 材料。上述兩種方法均可用以製造高體積分率的金屬基複材, 但其需在抽真空及咼溫的環境下長時間運作,生產週期長(約 6〜8 Hr)、耗能咼、生產成本高,因此較不具競爭性。 【發明内容】 有鏗於此,本發明的目的在提供—種可Μ來製造高體積 分率金屬基複合材料的特殊絕熱裝置,以解決-般以擠壓锖造 φ法無法製作高體積分率金屬基複合材料_題。使預形體從孩 熱爐取出至擠壓鎊造過程中維持一定的溫度,並且具有支撐預 形體結構之功能,以利於金屬液的液相滲透。 本發明之絕熱保護裝置,包括:一轉 ^ 成體具有一該金屬基 禝合材預形體的人Π及-内壁;以及—絕熱層,置於或塗 内壁上,用以保持該預形體之溫度。 本發明以上述絕麵護裝置形成金屬基複合材的 法’包括··提供-預形體;將該預形體置人—絕執奸 置,其中該絕熱保護裝置包括:_殼體,具有—該預 78-Α21456TWF(N2);P05940086TW;kingandchen 127123*8 的入口及一 用以保掊上 土,以及一絕熱層,置於或塗佈於該内壁上’ 中加^ 預开^體之溫度;將該絕熱保護裝置入一預熱爐 、以及將該絕熱保護裝置自該預熱爐中取出後透過 ^ 進仃金屬基複合材之基材滲透。 【實施方式】 格昂責引所述真空壓力滲透法及真空熱壓法的生產週期長、價 :不十分符合經濟效益,而傳統揞壓鑄造法雖然價格較 材,因、’通合用來製作高體積分率或碳纖維強化的金屬基複 屬Λ;Γ 2务,明的目的在提供一種可以用來製造高體積分率金 材料的特殊絕熱裝置,以解決一般以擠壓鑄造法無 、—入 貝77牛至屬基複合材料的問題。本發明製造金屬基 腹口的方法是先將強化材與黏結劑(binder)均勻混合,之後 等站二劑去除形成預形體,其所使用之強化材材質例如是 51;為顆粒、鬚晶或纖維狀之陶i強化材、碳纖維強化材、發 泡石炭、石墨粉或鑽石顆粒強化材,其中陶瓷強化材包括:SiC、 主厂山或ΖΓ〇2 ’而石厌纖維強化材包括:聚丙烯晴系碳纖維、瀝 月糸碳纖維、氣相生成碳纖雄或奈米碳管。 接著將預形體置入一絕熱保護裝置1〇〇,如第1A圖所 示、上述之、纟巴熱保濩裝置包括一體成形之中空殼體,或組 ^ 40 W/mX) C)之鐵基金屬、雜金屬、鎳基金屬或_材料,較佳為金 屬殼體,此金|殼體具有支撐獅體結構的_,方便夹取及 流程自動化,且可聽金具合_相直錢力而破裂, 0178-A21456TWF(N2);P05940086TW;kingandchen 9 1271238 並有助於液相滲透時维持 材料的健全性,_可避/性充填及職,提高金屬基複合 觸而發生高溫氧化現象。高溫下_°c)與空氣接 方體或依金屬基複合材所:—01之形狀可為正方體、長 一長方體。除了上述作成各種形狀,圖示中為 成形之设體,本發明另一者浐/ f钽# -種組合式殼體,如第1B 3編仏供 101a及下蓋l〇lb,此稽έ日人4 疋:成脰101分解為上蓋 保護裝置中取出。 蜀巷I口材自%熱 酿保護裝置包括—開口期,用以將形成之預形 置入絕熱保護裝置,以及用來 、7 _ 金屬基材之人π,^屬純合材料時液態 从人 /' Μ材可為1呂、銅、錤、敛、銀、鋅金屬 及/、δ金。此外,絕熱保護裝置^ 斤m- 更衣置ίυυ更包括一逃氣孔102,如 弟圖所不,較佳位於相對開口 1〇3的另一端,作為相人 ,基材滲透至獅體時,__部氣義放的出=。絕^ 護裝置100還包括-絕熱層107,其材質可為八跑、別凡、、 Z,、Si〇2、AIN s ΒΝ等陶竟氧化物及氮化物或竣化物,例 如是Abo3纖維氈,或是導熱性極差的陶瓷纖維布,夾設於中 空殼體101與預形體1〇5之間,也就是置於中空殼體ι〇ι的内 壁上’用以保持預形體105的溫度’避免因預形體溫降太大而 影響金屬基複合材料的液相壓力滲透性。第i A圖中絕熱層僅 啄置於預形體105的上下表面,但也可依製程所需做些許改 變’例如將絕熱層107完全包覆預形體1〇5,僅露出開口 1〇3 面之預形體作為液相金屬滲透的入口。 接著將絕熱保護裝置100置入預熱爐中加熱,依其所欲形 〇178~A2l456TWF(N2);P05940086TW;kingandchen 10 1271238 ^紐麵加絲適#溫度,例如,若為絲複合材則 辦口:、至銘之液相線溫度以上。同時通人保護氣氛以避免預形 口尚溫而氧化。待預形體105溫度達到設定溫度時迅速自預 ;、爐取出並置入擠顧台的模穴内(未顯示),接著將溶融金屬 ,倒入料筒内進行壓力滲透,將金屬液經擠壓滲透至預形體内 P其中預形體105自該預熱爐取出至進行滲透之間隔約小於 。务透製程完成後在模穴内冷卻ι_2分鐘,再移 敎 護裝置100即完成金屬基複合材。 ……、 第2圖顯示有使用及未使用本發明絕熱保護裝置的預形 體’在由預熱爐取出後置入滲透模具内的溫降曲線。由圖中可 以發現無殼體裝置的碳纖維預形體的溫降速度相當快,如此將 衫喜後績的金屬液渗透能力。而有採用本發明之外加裝置,立 碳纖維預形體的溫降速率明顯減缓,這對金屬·液的滲透能力 及金屬基複材的健全性具有相當大的正面幫助。以下為例舉幾 項採用本發明的一些實施例說明: 實施例1 利用長纖維先編織成1-D(—維)之預形體,並用碳_碳含浸 或熱壓方式作成高體積分率(>80%)的碳纖預形體,接著利用|呂 液壓力滲透所成1-D碳纖維銘基複材,第3A及第3B圖分別 顯示未加裝本發明之絕熱裝置所形成之銘基複合材的表面及 内部結構,可以看出表面内部均滲透不完全,主要是因碳纖維 預形體從預熱爐體移至擠壓模具時溫降太快,同時預形體直接 接觸到模具表面’溫度很快由模具傳導出去,因此金屬液滲透 時即因預形體温度遠低於熔湯的射出溫度而快速凝固阻礙滲 0178-A21456TWF(N2);P05940086TW;kingandchen ^ 1271238 透。第4A圖及第4B圖顯示加裝本發明之絕熱裝置的銘基複 合材,可以看出表面滲透相當完全。放大後的微結構如第5A 至第5D圖所示,從微結構分析亦發現鋁液可完全參透至高體 積分率的碳纖維之間,其中第5A及第5B圖顯示平行於纖維 方向,第5C及第5D圖顯示垂直於纖維方向,可見本發明之 絕熱保護裝置具有絕佳的絕熱效果。其熱傳導率在纖維方向高 達 640 W/m.K。 .貫施例2 第6A圖顯示利用本發明所作的2-D碳纖維鋁基複合材 料,第6B及第6C圖顯示其微結構,從圖中可輕易發現此石户 纖維體積分率亦相當高(〜70%),碳纖維係以垂直方向交錯編^ 而成,纖維直徑大約ΙΟμιη左右。碳纖維呈現二維方向的分布, 顯示此複合材料在兩垂直方向有均等的熱傳性質,由熱傳導吾 測結果為 320/310/120 W/m.K。 ^ 實施例3 由於碳纖維的導熱性並非均向性,在纖維軸向導熱性質特 佳,而徑向導熱性值不盡理想’因此前述之4如纖、= 合材料無法獲得三軸均⑽導熱性質,目此以發㈣作為複合 材料的基礎,是獲得均向導熱性材料的可行方式,因其鲈骨^ 結構係成3-D的網狀結構。發泡碳雖然導熱性質不如^^ 方向的導熱性,但由於其可得三轴等向的性質,仍具有獨特之 處。第7Affi為利用本發明絕熱保護裝置所製作的發泡碳^基 0178-A21456TWF(N2);P05940086TW;kingandchen 1271238 i=f 圖所示,其中黑色連續相即為發泡碳,而 ί明Μ Γ、、充填之A1部分。由圖可看出A1液滲透情況良好, 二&、孔洞存在,即使是較高密度的發泡賴樣可以渗透完 王2其三方向的熱傳導率分別為252副細w/mK,為純 銘的1.2〜1·3倍。 實施例4 一本發明除了可應用在紹基複合材料的製作,同時也適用在 :溫的銅基複合_上。其餘_是先將 本發明之絕熱保護裝置,一起放入右*从择頂办版直入 ^ (放人有保4线的賴爐體内預 : M ’均溫之後取出置人擠難穴内進行銅液渗 ==8A圖為其滲透完成後的碳纖維銅基複材,檢視外觀發 見”有不錯的珍透性。進一步觀察其微結構,如第8b圖所示, 結果顯示纖維與纖維之間均驗所充填,_充填情況良好, 並無發現明顯的未充填孔隙。此種出碳纖維銅基複材由於碳 纖維體積分率相當高達67%,肖喊維顧維之間幾乎已^ =在-起,可形成連續之導熱通道,因此出碳纖維銅= 材在平行纖維方向的熱傳導率高達712 w/mK,為純銅的18 倍。 雖然本發明已以較佳貫施例揭露如上,然其並非用以限定 本發明,任何熟習此技藝者,在不脫離本發明之精神和範圍 内,當可作些許之更動與潤飾,因此本發明之_範圍德 附之申請專利範圍所界定者為準。 78-A21456TWF(N2);P05940086TW;kingandchen 13 1271238 【圖式簡單說明】 第1A及1B圖顯示本發明之絕熱保護裝置 第2圖顯示使用及為使用本發明之絕熱保護裝置預形 體之溫度曲線 第3A及3B圖分別顯示未使用本發明之絕熱保護裝置 之鋁基複合材表面及内部結構 第4A及第4B圖顯示使用本發明之絕熱保護裝置之鋁 基複合材表面 馨第5A至5D圖顯示使用本發明之絕熱保護裝置之鋁基 複合材之微結構 第6A圖顯示利用本發明絕熱保護裝置所作的2-D碳 纖維銘基複合材 第6B至6C圖顯示利用本發明絕熱保護裝置所作的 2_D碳纖維鋁基複合材之微結構 第7A及第7B圖分別顯示利用本發明絕熱保護裝置所 製作的發泡碳鋁基複合材料表面及其微結構 • 第8A及第8B圖分別顯示利用本發明絕熱保護裝置所 製作的銅基複合材表面及其微結構 【主要元件符號說明】 100〜絕熱保護裝置; 101〜中空殼體; 102〜逃氣孔; ’ 103〜開口;127123,8 IX. Description of the Invention: [Technical Field] The present invention relates to a method for producing a metal-based composite material, and more particularly to a method for manufacturing a metal-based composite material using an insulation protection device. [Prior Art] As electronic components and related products are gradually becoming thinner, smaller, more efficient, and more frequent, the heat density of wafers is becoming higher and higher, so the problem of heat dissipation is becoming more and more serious. Traditionally used heat-dissipating materials, such as Al, Cu, and Cu-W, are gradually unable to meet the material requirements of electronic heat dissipation and packaging, and must be characterized by high thermal conductivity, low thermal expansion coefficient, and low density. Advanced materials. This must be achieved by the combination of materials in the second place to meet the requirements of the superior characteristics, which has led to the development of some advanced thermal management materials. Among all advanced thermal management materials, carbon fiber reinforced composites (Carb〇nfiber reinforced comp〇sites) are considered to have potential due to their high heat transfer and low density and scaly number compared to Ming and copper. Thermal management materials. This is mainly a carbon fiber-based composite material. The added carbon fiber itself has excellent thermal conductivity and electrical conductivity 12, and the bismuth expansion ratio is extremely low. The composite enamel made by Lan has the thermal properties and electrical properties of the cut. The processes commonly used to make metal matrix composites include (1) true ^ = through, (7) nickel reduction and (3) hot pressing. The vacuum and mastic method will be used to study the stalks of C, and serve as 〇3,-), continuous and discontinuous fibers: adding adhesive 〇178-A21456TWF(N2); P05940086TW; kingandchen 5 ^7123,8 L is a pre-form (pref〇rm). The agricultural pre-forms == preheating of the hot furnace, and (10) the gyrogen is burned off, and the burned gas is vacuumed: the clothes are discharged. At the same time, the infiltrated metal (A1, Mg, Cu is melted into the sputum) Above the liquidus, ) (Δp) pre-opens the pressure difference of all m and _ key: m in the pre-form inside the human body, and finally the two bodies that have been infiltrated are woven and cooled. Metal matrix composites. Although this type 1 can be used for pressure-penetration at high temperatures, it can be used to manufacture metal-based composite materials of large size and rate. However, since the mold and the preform need to pass through the liquid phase for a long time, the composite material is infiltrated. The solidification rate 目 'The manufacturing process from the A air temperature heating, insulation, pumping straight, liquid = through, cooling down, the entire production process is too long, the production cost is false. The vacuum hot pressing (the 乂 buckle is the most typical diffusion bonding method for the metal base. The green, copper, town, f, nickel-based composite materials have good results. Code _ VHP process 疋 first Reinforcing materials (such as continuous and discontinuous fibers, Sic, BN, AW) 3, -) and the substrate are placed in the hot pressing device, and then placed in the vacuum hot press process. After the heat is placed, the wire is warmed and then heated, and then the specific pressure is slowly cooled. This method has the advantages of control, quick action, easy reproduction and high quality. The main disadvantage is that the production cycle is too long, the cost is high, and it is difficult to make large items. A. Another cheap manufacturing method is the extrusion casting method, which is to strengthen the lion body, and then put the fine corpuscles in the body - the New Zealand (four) Lai domain near the liquid substrate of the osmosis, then touch the release Leakage molding, after clamping, 〇178~A2t 456TWF(N2); P〇5940〇86TW;kingandchen 1271238. 'Imported from the outside of the barrel. Simple and short production cycle (several minutes), the disadvantage is that the pre-form = two points is the temperature of the process tool will be I speed ^ ^, 汔, the furnace is taken out to the mold (four) old / ΙΓ at the same time into the cavity after the pre- After the form is directly contacted with the cistern, the heat is quickly lost, and the molten metal is connected to the t of the preform. On the other hand, the pre-forms are preheated at high temperatures and often used to be wiped. #民目专机(4) There are several divisions of the Xianji composite material. The patent No. 53 is used to blow oxygen into the liquid to make it 3 points. Directly injecting it into a man-made tube _ casting, this method, although, ', #--added to strengthen the difficult _ in the process of stirring and dispersion, but can not be applied to a variety of reinforced materials, such as Jane, Sic, graphite powder or Various charcoal fibers; and in the 841th patent towel, the ultrafine ceramic particles are prepared by suspending the appropriate amount of steamed water and dispersant f, and then ultrasonic treatment is used to improve the uniform dispersion of the reinforcing particles, but The volume fraction of reinforced particles that can be added is usually not exceeded, and cannot be used to make metal-based composite materials using graphite fibers or graphite powder as reinforced materials' and these reinforced materials are subjected to intense oxidation when subjected to high-temperature melting. The vacuum pressure infiltration method used by the MMCC (Metal Matrix Cast Composites) company, which was generally used to manufacture metal matrix composite materials by foreign patent search, is patented by USM, 148, 899. The vacuum pressure infiltration method disclosed is: (a)· Mixing ceramic granules, continuous and discontinuous fibers, adding a binder, and directly placing them into a cavity to form a preform. () · The mold with the preform is preheated in the heating furnace, and the binder is burned off, 〇17B^U5aTWP(N2); P〇594〇〇86Tw; k^ 1271238· and the burned gas is evacuated by vacuum. The device is discharged. (6) The metal to be infiltrated (Al, Mg, Cu, NiAl3___) is first melted into the liquidus above the crucible, and the molten metal is permeated into the preform in the mold by the pressure difference established between the hanging and the cavity. (d). The infiltrated preform is removed from the furnace for cooling and solidification. (e) • Remove the metal-based composite material by removing the mold. The US 6,318,442 patent discloses the incorporation of a preform into a permeable cavity, heating and maintaining a low pressure, and pouring the molten metal melt into a permeation mold under pressure to produce a composite. Both of the above methods can be used to manufacture metal-based composite materials with high volume fraction, but they need to be operated for a long time under vacuum and temperature conditions, with long production cycle (about 6~8 Hr), energy consumption, production. The cost is high and therefore less competitive. SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide a special heat insulating device capable of manufacturing a high volume fraction metal-based composite material, so as to solve the problem that a high volume fraction cannot be produced by the extrusion φ method. Rate metal matrix composites _ questions. The pre-form is removed from the furnace to maintain a certain temperature during the extrusion process, and has the function of supporting the preform structure to facilitate liquid phase penetration of the molten metal. The thermal insulation protection device of the present invention comprises: a rotating body having a mandrel and an inner wall of the metal matrix composite preform; and a heat insulating layer disposed on or coated with the inner wall for holding the preform temperature. The method for forming a metal matrix composite by the above-mentioned top surface protection device includes: providing a pre-shaped body; placing the pre-shaped body in a smuggling manner, wherein the thermal insulation protection device comprises: a housing having Pre-78-Α21456TWF(N2); P05940086TW; entrance of kingandchen 127123*8 and a temperature for protecting the upper soil and a heat insulating layer placed or coated on the inner wall to be pre-opened; The heat insulating protection device is placed in a preheating furnace, and the heat insulating protection device is taken out from the preheating furnace and then infiltrated through the substrate of the metal matrix composite. [Embodiment] Gon accuses the vacuum pressure infiltration method and the vacuum hot pressing method in a long production cycle, and the price is not very economical, while the traditional rolling casting method is relatively inexpensive, because of the use of The high-volume fraction or carbon fiber-reinforced metal-based composite enthalpy; Γ 2, the purpose of the purpose is to provide a special insulation device that can be used to manufacture high-volume fractional gold materials, to solve the general squeezing casting method, Into the shell 77 cattle to the base of the composite material. The method for manufacturing a metal-based abdominal mouth according to the present invention is to uniformly mix the reinforcing material and the binder, and then remove the two parts to form a preform, and the material of the reinforcing material used is, for example, 51; for particles, whiskers or Fibrous ceramic i-reinforced materials, carbon fiber reinforced materials, foamed charcoal, graphite powder or diamond granules, among which ceramic reinforced materials include: SiC, main plant or ΖΓ〇 2 ' and stone reinforced fiber reinforced materials include: polypropylene Clear carbon fiber, leachate carbon fiber, gas phase carbon fiber or carbon nanotube. Next, the preform is placed in an adiabatic protection device 1A, as shown in FIG. 1A, the above-mentioned 纟巴热保濩 device comprises an integrally formed hollow casing, or a group of 40 W/mX) C) Iron-based metal, miscellaneous metal, nickel-based metal or _ material, preferably a metal shell, the gold | shell has a _ supporting lion structure, convenient for gripping and process automation, and can listen to gold fittings _ straight money Force and rupture, 0178-A21456TWF (N2); P05940086TW; kingandchen 9 1271238 and help to maintain the soundness of the material during liquid phase penetration, _ avoidable / sexual filling and job, improve the high temperature oxidation phenomenon caused by metal-based composite contact. At high temperatures _°c) with air joints or metal-based composites: -01 can be a square or a long cuboid. In addition to the above-described various shapes, the figure is a shaped body, and the other of the present invention is a composite housing, such as the 1B 3 series for the 101a and the lower cover l lb, this is the case. Japanese 4 疋: Cheng Yu 101 is decomposed into the upper cover protection device. The alley material from the % hot-boiler protection device includes an opening period for inserting the formed pre-form into the thermal insulation device, and for the liquid material of the 7 _ metal substrate, π, ^ is a homogenous material The person / ' coffin can be 1 Lu, copper, bismuth, condensed, silver, zinc metal and /, δ gold. In addition, the heat-insulating device Φm-furnishing device further includes an escape hole 102, as shown in the figure, preferably located at the other end of the opposite opening 1〇3, as a person, when the substrate penetrates into the lion body, _ _ Department of gas release =. The protective device 100 further includes a heat insulating layer 107, which may be made of a ceramic, an oxide, a nitride or a germanium compound such as an eight-run, an ordinary, a Z, a Si 〇 2, an AIN s ,, such as an Abo 3 fiber felt. Or a ceramic fiber cloth having poor thermal conductivity, sandwiched between the hollow casing 101 and the preform 1〇5, that is, placed on the inner wall of the hollow casing ι〇ι to hold the preform 105 The temperature 'avoids the liquid phase pressure permeability of the metal matrix composite due to too much temperature drop of the preform. In the figure iA, the heat insulating layer is only placed on the upper and lower surfaces of the preform 105, but it may be changed slightly according to the process. For example, the heat insulating layer 107 is completely covered with the preform 1〇5, and only the opening 1〇3 surface is exposed. The preform acts as an inlet for liquid metal penetration. Then, the heat insulating protection device 100 is placed in the preheating furnace to be heated, and the shape is 178~A2l456TWF(N2); P05940086TW;kingandchen 10 1271238^the new surface is added to the temperature, for example, if it is a wire composite Mouth:, above the liquidus temperature of Ming. At the same time, the atmosphere is protected to prevent the pre-forms from being oxidized. When the temperature of the preform 105 reaches the set temperature, it is quickly pre-prepared; the furnace is taken out and placed in the cavity of the squeezing table (not shown), then the molten metal is poured into the cylinder for pressure penetration, and the molten metal is squeezed. Permeate into the preform P where the pre-form 105 is removed from the preheating furnace until the interval of penetration is less than about. After the completion of the process, the solution is cooled in the cavity for 1-2 minutes, and then the metal-based composite is completed by moving the protective device 100. Fig. 2 shows the temperature drop curve of the preform 'with and without the thermal insulation device of the present invention' placed in the infiltration mold after being taken out of the preheating furnace. It can be seen from the figure that the temperature drop rate of the carbon fiber preform without the casing device is quite fast, so that the metal liquid permeability of the shirt is satisfactory. However, with the addition device of the present invention, the temperature drop rate of the carbon fiber preform is remarkably slowed, which has a considerable positive effect on the permeability of the metal and liquid and the soundness of the metal-based composite. The following are some examples of some embodiments of the present invention: Example 1 Firstly, a long fiber is woven into a 1-D (-dimensional) preform, and a carbon-carbon impregnation or hot pressing method is used to form a high volume fraction ( >80%) of the carbon fiber preform, followed by the pressure-penetration of the 1-D carbon fiber Mingji composite material, and the 3A and 3B drawings respectively show the Mingji composite formed by the thermal insulation device without the invention. The surface and internal structure of the material can be seen to be incompletely penetrated inside the surface, mainly because the temperature drop of the carbon fiber preform moving from the preheating furnace body to the extrusion die is too fast, and the preform directly contacts the surface of the mold. It is quickly conducted out of the mold. Therefore, when the molten metal penetrates, the temperature of the preform is much lower than the injection temperature of the melt, and the rapid solidification hinders the penetration of 0178-A21456TWF (N2); P05940086TW; kingandchen ^ 1271238. Figs. 4A and 4B show the Ming base composite to which the heat insulating device of the present invention is attached, and it can be seen that the surface penetration is quite complete. The enlarged microstructures are shown in Figures 5A to 5D. It is also found from the microstructure analysis that the aluminum liquid can be completely penetrated between the carbon fibers of high volume fraction, wherein the 5A and 5B graphs are parallel to the fiber direction, 5C. And the 5D figure shows perpendicular to the fiber direction, and it can be seen that the heat insulating protection device of the present invention has an excellent heat insulating effect. Its thermal conductivity is as high as 640 W/m.K in the fiber direction. Example 2 Figure 6A shows a 2-D carbon fiber aluminum-based composite material made by the present invention, and Figures 6B and 6C show the microstructure thereof. It can be easily found from the figure that the volume fraction of the stone fiber is also quite high. (~70%), the carbon fibers are interlaced in the vertical direction, and the fiber diameter is about ΙΟμιη. The carbon fiber exhibits a two-dimensional distribution, indicating that the composite material has uniform heat transfer properties in two perpendicular directions, and the heat conduction measurement result is 320/310/120 W/m·K. ^ Example 3 Since the thermal conductivity of carbon fiber is not uniform, the thermal conductivity in the axial direction of the fiber is particularly good, and the radial thermal conductivity value is not satisfactory. Therefore, the above-mentioned 4, such as fiber, = material, cannot obtain three-axis (10) heat conduction. The nature, the purpose of this (4) as the basis of the composite material, is a feasible way to obtain a uniform thermal material, because its tibia structure is a 3-D network structure. Although the thermal conductivity of foamed carbon is not as good as that of the ^^ direction, it is unique because it has three-axis isotropic properties. 7Affi is a foamed carbon base made by the heat insulating protection device of the present invention, 0178-A21456TWF(N2); P05940086TW; kingandchen 1271238 i=f, wherein the black continuous phase is foamed carbon, and ί明Μ, Fill the A1 part. It can be seen from the figure that the penetration of A1 liquid is good, and the second & hole exists. Even the higher density foaming sample can penetrate the king 2 and the thermal conductivity in the three directions is 252 fine w/mK, which is pure. Ming 1.2~1·3 times. Embodiment 4 A present invention can be applied not only to the fabrication of a sorghum composite but also to a warm copper-based composite. The rest of the _ is to first put the thermal insulation device of the present invention into the right * from the top of the selection to the straight into the ^ (released in the 4 line of the furnace to pre-heat: M 'after the temperature is removed and placed in the crowded hole Copper liquid permeation == 8A is the carbon fiber copper-based composite material after the completion of its infiltration. The appearance of the inspection is "very good." Further observation of its microstructure, as shown in Figure 8b, shows the fiber and fiber. Filled with uniform inspection, _filling is good, no obvious unfilled pores are found. This kind of carbon fiber copper-based composite material has a volume fraction of carbon fiber of 67%, and Xiaoqiweiwei almost has - a continuous heat conduction channel can be formed, so that the carbon fiber copper = material has a thermal conductivity of up to 712 w/mK in the direction of the parallel fibers, which is 18 times that of pure copper. Although the present invention has been disclosed as a preferred embodiment, It is not intended to limit the invention, and any person skilled in the art can make some modifications and refinements without departing from the spirit and scope of the invention. 78-A21456TWF(N2); P05940 086TW;kingandchen 13 1271238 [Simple description of the drawings] Figs. 1A and 1B show the thermal insulation protection device of the present invention. Fig. 2 shows the temperature profiles of the preforms used and used for the thermal insulation device of the present invention. Figs. 3A and 3B respectively show no The surface and internal structure of the aluminum-based composite material using the thermal insulation device of the present invention are shown in Figs. 4A and 4B. The surface of the aluminum-based composite material using the thermal insulation protection device of the present invention is shown in Figures 5A to 5D, showing the use of the thermal insulation protection device of the present invention. The microstructure of the aluminum-based composite material is shown in Fig. 6A, and the 6D to 6C drawings of the 2-D carbon fiber-based composite material made by the thermal insulation protection device of the present invention show the micro-fiber-fiber aluminum-based composite material made by the thermal insulation protection device of the present invention. Structures 7A and 7B show the surface and microstructure of the foamed carbon-aluminum-based composite material produced by the heat insulating protection device of the present invention, respectively. Figs. 8A and 8B respectively show copper bases produced by the heat insulating protection device of the present invention. Composite surface and microstructure [main component symbol description] 100~ thermal insulation device; 101~ hollow housing; 102~ escape hole; ' 1 03~ opening;

0178-A21456TWF(N2);P05940086TW;kingandchen R 105- 1271238 預形體; 絕熱層; v上蓋; 。下蓋。 107, 101a 101b0178-A21456TWF (N2); P05940086TW; kingandchen R 105- 1271238 preform; insulation layer; v upper cover; lower lid. 107, 101a 101b

0178-A21456TWF(N2);P05940086TW;kingandchen - 150178-A21456TWF(N2); P05940086TW;kingandchen - 15

Claims (1)

1271238 十、申請專利範圍: 1. 一種製造金屬基複合材的絕熱保護裝置,包括: 一殼體,具有一該金屬基複合材預形體的入口及一内 壁;以及 一絕熱層,置於或塗佈該内壁上,用以保持該預形體 之溫度。 2. 如申請專利範圍第1項所述之製造金屬基複合材的 絕熱保護裝置,其中該殼體更包括至少一逃氣孔,用以排 除該預形體内之氣體。 3. 如申請專利範圍第2項所述之製造金屬基複合材的 絕熱保護裝置,其中該逃氣孔相對於該入口。 4. 如申請專利範圍第1項所述之製造金屬基複合材的 絕熱保護裝置,其中該殼體包括低導熱性之鐵基金屬、鈷 基金屬、鎳基金屬或陶莞材料。 5. 如申請專利範圍第1項所述之製造金屬基複合材的 絕熱保護裝置,其中該絕熱層包括:陶瓷氧化物、碳化物 或氮化物。 6. 如申請專利範圍第5項所述之製造金屬基複合材的 絕熱保護裝置,其中該陶瓷氧化物包括:Al2〇3、Si3N4、 Zr02、Si02、A1N 或 BN。 7. 如申請專利範圍第1項所述之製造金屬基複合材的 絕熱保護裝置,其中該殼體為長方體或正立方體。 8. 如申請專利範圍第1項所述之製造金屬基複合材的 絕熱保護裝置,其中該殼體為一體成形。 0178-A21456TWF(N2);P05940086TW;kingandchen 16 1271238 9. 如申請專利範圍第1項所述之製造金屬基複合材的 絕熱保護裝置’其中該殼體為二件組合式殼體。 10. —種製造金屬基複合材的方法,包括: 提供一預形體; 將該預形體置入一絕熱保護裝置,其中該絕熱保護裝 置包括:一殼體,具有一該預形體的入口及一内壁;以及 一絕熱層,置於或塗佈於該内壁上,用以保持該預形體之 溫度; 鲁將該絕熱保護裝置入一預熱爐中加熱;以及 將該絕熱保護裝置自該預熱爐、中取出後透過該入口進 行金屬基複合材之基材滲透。 11. 如申請專利範圍第10項所述之製造金屬基複合材 的方法,其中該預形體的形成方法包括:將一強化材與一 黏結劑均勻混合,加熱將黏結劑去除形成該預形體。 12. 如申請專利範圍第10項所述之製造金屬基複合材 的方法,其中該預形體自該預熱爐取出至進行該滲透之間 • 隔約小於30秒。 13. 如申請專利範圍第10項所述之製造金屬基複合材 的方法,其中該殼體更包括至少一逃氣孔,作為進行該滲 透時該預形體内部氣體排放的出口。 14. 如申請專利範圍第13項所述之製造金屬基複合材 的方法,其中該逃氣孔相對於該入口。 15. 如申請專利範圍第10項所述之製造金屬基複合材 的方法,其中該預形體包括型態為顆粒、鬚晶或纖維狀之 0178-A21456TWF(N2);P05940086TW;kingandchen 1271238 陶瓷強化材、碳纖維強化材、發泡碳、石墨粉或鑽石顆粒 強化材。 16. 如申請專利範圍弟10項所述之製造金屬基複合材 的方法,其中該陶瓷強化材包括Sic、Si3N4、A12〇3、Zr02、 AIN 或 BN。 17. 如申請專利範圍第10項所述之製造金屬基複合材 的方法,其中該碳纖維強化材包括:聚丙烯晴系碳纖維、 瀝青系礙纖維、氣相生成碳纖維或奈米礙管。 ⑩ 18.如申請專利範圍第10項所述之製造金屬基複合材 的方法,其中該預形體之體積分率大於30%。 19. 如申請專利範圍第10項所述之製造金屬基複合材 的方法,其中該預形體之體積分率大於70%。 20. 如申請專利範圍第10項所述之製造金屬基複合材 的方法,其中該殼體包括低導熱性之鐵基金屬、鈷基金屬、 鎳基金屬或陶瓷材料。 21. 如申請專利範圍第10項所述之製造金屬基複合材 _ 的方法,其中該金屬基複合材之基材包括紹、銅、鎂、鈦、 銀、鋅金屬及其合金。 0178-A21456TWF(N2);P05940086TW;kingandchen1271238 X. Patent application scope: 1. An insulation protection device for manufacturing a metal matrix composite, comprising: a casing having an inlet and an inner wall of the metal matrix composite preform; and a heat insulation layer disposed or coated The inner wall of the cloth is used to maintain the temperature of the preform. 2. The thermal insulation device for manufacturing a metal matrix composite according to claim 1, wherein the housing further comprises at least one escape hole for discharging gas in the preform. 3. The thermal insulation device for manufacturing a metal matrix composite according to claim 2, wherein the escape hole is opposite to the inlet. 4. The thermal insulation device for manufacturing a metal-based composite material according to claim 1, wherein the casing comprises a low thermal conductivity iron-based metal, a cobalt-based metal, a nickel-based metal or a ceramic material. 5. The thermal insulation device for manufacturing a metal matrix composite according to claim 1, wherein the heat insulating layer comprises: ceramic oxide, carbide or nitride. 6. The thermal insulation device for manufacturing a metal matrix composite according to claim 5, wherein the ceramic oxide comprises: Al2〇3, Si3N4, Zr02, SiO2, A1N or BN. 7. The thermal insulation device for manufacturing a metal matrix composite according to claim 1, wherein the casing is a rectangular parallelepiped or a cube. 8. The thermal insulation device for manufacturing a metal-based composite material according to claim 1, wherein the casing is integrally formed. A heat insulating protection device for manufacturing a metal matrix composite according to claim 1 wherein the casing is a two-piece composite casing. 10. A method of making a metal matrix composite, comprising: providing a preform; placing the preform into an insulating protection device, wherein the thermal insulation device comprises: a housing having an inlet of the preform and a An inner wall; and a heat insulating layer disposed on or coated on the inner wall to maintain the temperature of the preform; the heat insulating device is heated in a preheating furnace; and the heat insulating device is preheated from the inner wall After the furnace is taken out, the substrate of the metal matrix composite is infiltrated through the inlet. 11. The method of producing a metal matrix composite according to claim 10, wherein the preform is formed by uniformly mixing a reinforcing material with a binder and heating to remove the binder to form the preform. 12. The method of making a metal matrix composite according to claim 10, wherein the preform is taken from the preheating furnace to perform the infiltration; and the separation is less than about 30 seconds. 13. The method of producing a metal matrix composite according to claim 10, wherein the casing further comprises at least one escape hole as an outlet for gas discharge inside the preform when the permeation is performed. 14. The method of producing a metal matrix composite according to claim 13, wherein the escape hole is opposite to the inlet. 15. The method of producing a metal matrix composite according to claim 10, wherein the preform comprises 0178-A21456TWF (N2) in the form of particles, whiskers or fibers; P05940086TW; kingandchen 1271238 ceramic reinforcing material , carbon fiber reinforced materials, foamed carbon, graphite powder or diamond granules. 16. The method of producing a metal matrix composite according to claim 10, wherein the ceramic reinforcing material comprises Sic, Si3N4, A12〇3, Zr02, AIN or BN. 17. The method of producing a metal matrix composite according to claim 10, wherein the carbon fiber reinforced material comprises: a polypropylene clear carbon fiber, a pitch barrier fiber, a gas phase carbon fiber or a nano tube. The method of producing a metal matrix composite according to claim 10, wherein the preform has a volume fraction of more than 30%. 19. The method of producing a metal matrix composite according to claim 10, wherein the preform has a volume fraction of greater than 70%. 20. The method of producing a metal matrix composite according to claim 10, wherein the casing comprises a low thermal conductivity iron-based metal, a cobalt-based metal, a nickel-based metal or a ceramic material. 21. The method of producing a metal matrix composite according to claim 10, wherein the substrate of the metal matrix composite comprises slag, copper, magnesium, titanium, silver, zinc metal and alloys thereof. 0178-A21456TWF(N2); P05940086TW;kingandchen
TW95111567A 2006-03-31 2006-03-31 Device and method for fabricating metal-matrix composite TWI271238B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9397279B2 (en) 2013-12-27 2016-07-19 Industrial Technology Research Institute Electric conductive heat dissipation substrate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9397279B2 (en) 2013-12-27 2016-07-19 Industrial Technology Research Institute Electric conductive heat dissipation substrate

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