1289191 九、發明說明： 【發明所屬之技術領域】 ，尤其係指一種燒結式熱 本發明係關於一種熱導管之製造方法 導管之製造方法。 【先前技術】 熱導管因體積小、利用相變潛熱作用快速輸送大量熱能、溫度 ^布均勻、構造簡單、重量輕、無需外加作用力、壽命長、低熱阻、1289191 IX. Description of the invention: [Technical field to which the invention pertains], particularly refers to a sintering type heat. The present invention relates to a method of manufacturing a heat pipe. [Prior Art] Due to its small size, the heat pipe quickly transports a large amount of heat energy by using the latent heat of phase change, uniform temperature, simple structure, light weight, no external force, long life, low thermal resistance,
，距傳輸等特性，符合目前電腦等領，散熱需求，因此被廣泛用 來解決散熱問題。 熱導管的驅動原理是利用蒸發部之毛細結構内所蕴含的工作流 體，吸收外部«之熱量而蒸發，由於紐產 導管的冷凝部方向㈣義麟送熱量，最餘冷凝料卻凝魅 放熱。此後，凝縮的工作流體被吸收於冷凝部之毛細結構内，藉由 毛細結構產生的毛細壓差，而被驅動回歸於蒸發部，上述工作流體 的移動及_過麵環運作，從而使熱量轉發部销向冷凝部傳 輸0 熱導管之毛細結構在整個傳熱過程令扮演著極其重要的角色， 習知的毛細結構包含燒結式毛細結構、溝槽式毛細結構、纖維式毛 細結構及筛網式毛細結構，該等毛細結構各有其優缺點。其中，燒 結，毛細結構储由粉體直接燒結於管_成，其具有多蒸汽通道 及微小幹轉雜，而可明加親的流動速率及提耗細塵力， 適合應驗反重力及高功率的鱗"，目前獅廣泛。 ’、、、:而U熱導官在製造上亦相對複雜，且生產良率一直較 ，，其主要經過插入芯棒、填入粉體、燒結處理、芯棒脫膜等製程。 第一f所不為製造燒結式熱導管所慣用的方法，主要為於熱導管之 ‘一又版1 t插入心棒2,於導熱殼體丨與芯棒2之間填入粉體通 4為銅私)進行燒結，燒結完成後使芯棒2脫模，即將芯棒2抽離導 6 1289191 熱殼體卜在上述各步驟中，造成良率低的主要製程在於芯棒脫膜， 衫要原岐健3與騎2(騎林_)表縣麟過程中易產 生擴散鍵結（MU— Bond)而結合在—起，以及銅粉在_〜酿 - 肖有2%〜3%_彡關題，如第二_示。因此當完錢結後要將芯 棒2抽離時，必需額外施加更多的外力，而熱導管經過高溫燒結後 其導熱殼體1表錄化，使得解錄職形，嚴重者無法脫膜而 - 造成不良率的增加。 目&自知的改善將芯棒2經過IUb處理及於芯棒2表面 塗佈财反應層，例如：鶴粉(w)、說化爛㈣)、氧化細变粉（Ai2〇3)。 Ρ 所添加的粉體極易因抽拔時的摩擦力而剝落進而殘留於熱導管内， 其影響為·⑴極可能造紐塞毛細結構，造成讀介質回流不順 暢；（2)所塗佈的抗反應層厚度逐漸縮減，導致芯棒在使用次數上受 到嚴重的限制。當不銹鋼棒表面塗佈氮化硼（BN)後通常可以使用 5〜8次，而芯棒的使用壽命一般為1〇〜5〇次，因此計算每燒結一支熱 導管時芯棒及表面塗佈所佔的費用約為成本的1〇〜2〇%。如果可以增 加芯棒的使用次數甚至可以不用芯棒，則將可以大幅降低熱導管製 造成本、維持產品的品質，增加產品的競爭力。 _ 【發明内容】 為解決燒結式熱導管在製造過程中由於芯棒脫模所造成製程良 率低以及成本較高的技術問題，在此實有必要提供一種燒結式熱導 ^之製造方法’以&幵製程良率’並降低其生產成本。 該燒結式熱導管之製造方法包括如下步驟：將一芯棒插入熱導 管之殼體内，且使該芯棒與殼體之間留有間隙；在上述間隙内填入 流動性良好之高熱傳導粉體漿料；對填入之流動性漿料進行固化定 型處理；漿料定型後將芯棒抽離殼體；以及對上述殼體及定型製料 進行高溫燒結，使該高熱傳導粉體形成為熱導管之毛細結構層。 上述製造方法係通過成型技術將先調製衆料顆粒’利用毁料顆 7 1289191 因而不 且由於 成年充填於芯棒與殼體_，輕流動«料固化 $ ’再將4抽離，此後在燒結過針已無須使用芯棒， :導致燒結後芯棒脫模__題，可有效提昇製程良率l 本上棒可重❹錢用’亦㈣相枝降低生產成 本，提幵產品競爭力。 【實施方式】 第三圖揭示為本發雜結賴導管之較佳製程，主要包括五個 步驟，即插人芯棒'填人槳料、漿料定型、抽 =管内形成燒結毛細層，該製程係讀形成該燒結毛二的= 傳卜粉體槪献可流雜之漿料，並·機械力_，將此聚料 〜體注入熱導管之—定雜空_，再·加熱或冷卻等方式使聚 料定型，以轉所設計之形狀及厚度，抽出芯棒，再施以高溫燒結 而成為具毛細結構之鮮管叮面結合第四_職程之各步驟進 行說明。 第四圖揭示為本發明燒結式鮮管在製魏財其巾-實施例 的結構示意圖’包括-導熱殼體10、-定位塊20、一芯棒30及一 擠壓機40。料驗體1G彳紋位奴輯2()上，且—端形成縮口 端11 ’該雜3G的前卿成雜並設有排纽3卜制棒30之外 徑小於該導餘體丨㈣魄，藉此，芯棒_人賴舰ι〇之後 f兩者之間3形成—疋的預留間隙，即可利用設於擠壓機上之攒 壓桿41往前推_產生的機觀力將雛好讀料5()壓擠填入至 導熱殼體10與芯棒30之間的預留空間内。 該祕50之調配可採用將多種低溫高分子材料、分散劑、高熱 傳粉體、黏結解依重量喊者體積比_配職加溫後具流動性 之流體’在娜時，通過加熱使低溫高分子材料制軟化點以形 成具流動性之賴50。其巾，齡散劑_於高熱料粉體顆粒分 散均勻’雜結射於雜㈣後使高熱料粉體齡之間枯貼而 1289191 維持駭贱之微。在讎触巾，w 5G _含量必需維持在 適當的滅，财過高’則Μ流動，料高加熱溫度；減過低， 則祕5G不易凝固且易造成生胚密度的降低。所選擇的低溫高分子 材料可以是轉類高分子、石⑽、高分子，所_的高熱傳導粉體 可以是金屬粉末或者陶錄末，比如銅、紹、銀、錄、鈦、人工鑽 石顆粒、喊m或者為上雜_種騎的合金，亦或為上 述多種元素的组合。 该装料5〇之調配還可採用在高熱傳導粉體中加入揮發性高的溶 劑、黏結劑、分散劑等，並按一定的重量比或者體積比而調配形成 具流動性之流體，在舰時，_5G_含量必需轉在適當 的黏度，其巾，所麵的高揮發性輔可以是麵、麵、烧類溶 劑。 •操鱗，其動作方式為：將尖端具排氣孔31之芯棒3〇 一端置 入導熱殼體1G峨吐於其_端u，另—端可與顏機4〇連為 =亦可置入播壓機4〇之具空孔之擠壓桿^ 0，而導熱殼體川之 非縮口端的圓周面與麵機4G出料口處的圓周面抵接；接著將調配 好的水料50在擠壓機4〇的進料處經由播壓桿41的前進推擠，而沿 tC機^的出料口往導熱殼體1〇之方向推進，而導熱殼體⑺内產 生的大里氣體則_芯棒3G前端預留的排氣孔31排出，直到毅料 50,滿導熱<體1G喃留嶋為止；然後對填人之祕％進行固 化定型，針對不同的装料調配方式，·料50填充及固化定型的方 式稍有獨，如果對㈣係顧上述第_餅填人低溫高分子材料 t式期彿成’則需先經過加溫使高分子材料軟化後再擠入導熱 ⑽1〇 Θ ’亚在定位塊2G内通以冷卻祕將導熱M 1G冷卻，達 !同寺將’、/,,〔動之襞料冷卻固化的目的。如果敷料％係採用上述第 一種=填人兩揮發性溶劑的方式，則可採祕溫(贼〜航)供烤方 式將门，^劑丨後蒸發，使得萊料％的黏度越來越稠，最後達 9 1289191 漿料50定型後，因襞料5〇收縮而與芯棒3〇分離，即可將芯棒 3^〇輕易歸，而得到-均勻厚度的毛細結構生胚；最後將具此固化 襞料50之導熱殼體1G做高溫燒結處理，於燒結完成後再經由 一端封口、抽真空、注工作液體、另端封口等步驟即可以得到一燒 結式熱導官6G，且其管晴成有-均勻厚度之燒結粉末式毛細結構 層1如第五圖所示。針對上述第_種雛方式形成的㈣％，在 進仃南溫燒結之誠需觸低溫緩慢輯，使原來填人之低溫高分 子材料燒失掉，聰止該高分子翻因加熱過快而軟化造成的 塌陷問題’在實務上，可採用具有不同軟化溫度點的多種低溫高分 子材料進彳了雛，據此在進行燒失時可將其依溫度關分段燒失掉。 ★在本實施例巾，由於在燒結進行之前，芯棒3〇 gp已被抽離導熱 设體10 ’而在燒結過程中已無須使用芯棒，可避免習知製程中由於 鱗與熱導管之殼體曝結而結合在—够魏模關題，因此該 芯棒30可重複多次使用，並有效提昇產品良率。 為配合自動化生產，還可將上述製程各步聽合控㈣、統而實 現生產自動化，其中主機構可包含：漿料調配系統、定量填料系統、 漿料冷卻定型系統、燒結爐紐以及控·統，經由控制系統的控 制設計將各製程動作依序排定動作時機及時間，即可完成自動化生 產。 是以，上述實施例具有改善習用技術之眾多優點： (一） 利用成型技術將漿料預先定型在殼體内，在熱導管燒結 前，將芯棒取出，而在燒結過程中已無須使用芯棒，因而不會 燒結後芯棒脫模困難的問題，可避免使用芯棒所造成的缺點Y有效 提歼製程良率；同時亦達到有效降低生產成本，提昇產品競爭力。 (二） 利用擠壓製程可製作厚度均一的毛細結構層，避免利用其 他方式所造成毛細結構厚度不均及填粉不實的缺點。 (三） 結合自動化設備可提升量產性。 綜上所述，本發明確已符^發明專利之要件，遂依法提出專利 1289191 申請。惟，以上所述者僅為本發明之較佳實施例，自不能以此限制 本案之中請料msi。舉凡熟悉本紐藝之人士援依本發明之精神 所作之等效修飾或變化，皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 第一圖係習知燒結式熱導管製程示意圖。 第二圖係為銅粉在燒結製程中的熱分析圖。 第三圖係本發明燒結式熱導管之較佳製程的流程圖。 第四圖係本發魏結式鱗管在製造過財其中—實劇的結構示The characteristics such as transmission and transmission are in line with the current computer and other requirements for heat dissipation, so it is widely used to solve the heat dissipation problem. The driving principle of the heat pipe is to use the working fluid contained in the capillary structure of the evaporation portion to absorb the heat of the external «evaporation. Because of the direction of the condensation portion of the new product conduit (IV), the most condensed material is condensed and exothermic. Thereafter, the condensed working fluid is absorbed in the capillary structure of the condensing portion, and is driven to return to the evaporation portion by the capillary pressure difference generated by the capillary structure, and the movement of the working fluid and the operation of the surface ring are performed, thereby transferring the heat. The pinned structure of the 0 pin to the condensing section plays an extremely important role in the entire heat transfer process. The conventional capillary structure includes a sintered capillary structure, a grooved capillary structure, a fibrous capillary structure and a mesh type. The capillary structure, each of which has its advantages and disadvantages. Among them, the sintering and capillary structure storage is directly sintered by the powder into the tube, which has multiple steam passages and small dry turns, and can clearly increase the flow rate and the fine dust force, which is suitable for the requirements of anti-gravity and high power. The scales ", the current lion is extensive. ‘,、、: The U thermal guide is also relatively complicated in manufacturing, and the production yield is always relatively high. It is mainly processed by inserting a mandrel, filling a powder, sintering treatment, and removing the core rod. The first f is not a method conventionally used for manufacturing a sintered heat pipe, and is mainly for inserting a mandrel 2 into a heat exchanger, and filling a powder through the heat-conductive casing and the mandrel 2 Copper private) is sintered, after the sintering is completed, the mandrel 2 is demolded, that is, the mandrel 2 is pulled away from the guide 6 1289191. The hot shell is in the above steps, and the main process causing the low yield is that the mandrel is stripped, and the shirt is required. The original 岐健3 and the cyclist 2 (riding the forest _) table county lin process is prone to diffusion bond (MU-bond) and combined in the same, and copper powder in the _~ brewing - Xiao has 2% ~ 3% _ 彡The title is as shown in the second _. Therefore, when the mandrel 2 is to be withdrawn after the completion of the money, it is necessary to apply more external force, and the heat pipe is subjected to high-temperature sintering, and the heat-conducting casing 1 is recorded, so that the job is dismantled, and the serious one cannot be stripped. And - caused an increase in the rate of non-performing. Self-aware improvement of the mandrel 2 by IUb treatment and coating of the surface of the mandrel 2 with a financial reaction layer, for example: crane powder (w), said rot (four), oxidized fine powder (Ai2 〇 3). Ρ The added powder is easily peeled off due to the friction during drawing and remains in the heat pipe. The effect is (1) it is very likely to create a capillary structure, which makes the reading medium not flow smoothly; (2) coated The thickness of the anti-reaction layer is gradually reduced, resulting in a severe limitation in the number of times the mandrel is used. When the surface of the stainless steel rod is coated with boron nitride (BN), it can usually be used 5 to 8 times, and the service life of the core rod is generally 1〇~5〇 times, so the core rod and the surface coating are calculated for each sintering of the heat pipe. The cost of cloth is about 1〇~2〇% of the cost. If you can increase the number of times the mandrel is used or even without the mandrel, it will greatly reduce the heat pipe manufacturing cost, maintain the quality of the product, and increase the competitiveness of the product. _ 【Contents】 In order to solve the technical problem of low process yield and high cost due to mold release of the sintered heat pipe in the manufacturing process, it is necessary to provide a manufacturing method of sintered thermal conductivity. Take & 幵 process yield' and reduce its production costs. The method for manufacturing the sintered heat pipe includes the steps of inserting a core rod into a casing of a heat pipe and leaving a gap between the mandrel and the casing; filling the gap with high fluidity with good fluidity a powder slurry; curing and shaping the filled fluid slurry; drawing the core rod away from the shell after the setting of the slurry; and sintering the shell and the shaped material at a high temperature to form the high heat conductive powder It is the capillary structure layer of the heat pipe. The above manufacturing method is to first modulate the mass particles by the molding technique to utilize the smashed particles 7 1289191 and thus not to be filled with the mandrel and the shell by the adult _, the light flow «material solidification $ ' and then 4 is removed, and then sintered There is no need to use the mandrel for the needle. The result is that the core rod is demoulded after sintering, which can effectively improve the process yield. l The stick can be used to reduce the production cost and improve the competitiveness of the product. [Embodiment] The third figure discloses a preferred process of the present invention, which mainly comprises five steps, namely, inserting a mandrel to fill a paddle, slurry setting, and drawing a sintered capillary layer in the tube. The process is read to form the sintered bristles = the powder of the blister powder, and the mechanical force _, the polymer material is injected into the heat pipe - the hollow _, and then heated or cooled In other ways, the shape of the material is shaped, and the shape and thickness of the design are transferred, and the mandrel is extracted, and then the high temperature sintering is performed to form a fresh tube with a capillary structure and the steps of the fourth step are described. The fourth drawing discloses a schematic view of the structure of the sintered fresh-keeping tube of the present invention, which comprises a heat-conducting casing 10, a positioning block 20, a mandrel 30 and an extruder 40. The sample body 1G 彳 位 奴 奴 奴 ( ( ( ( 且 且 且 且 奴 奴 奴 奴 奴 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' (4) 魄, by means, the mandrel _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The force is applied to fill the reserved space between the heat-conducting casing 10 and the mandrel 30. The combination of the secret 50 can use a variety of low-temperature polymer materials, dispersants, high-heat powders, and the weight ratio of the weight of the caller to the volume of the liquid. The softening point of the polymer material is formed to form a liquidity. Its towel, age powder _ in the high-heat powder particles dispersed evenly 'heterojunction shot on the miscellaneous (four) to make the high-heat powder age between the dead and 1289191 to maintain the slightest. In the tweezers, the content of w 5G _ must be maintained at a proper extinction, and if it is too high, the enthalpy flows, and the material is heated at a high temperature; if it is too low, the secret 5G is not easily solidified and is liable to cause a decrease in the density of the green embryo. The selected low-temperature polymer material may be a trans-type polymer, a stone (10), a polymer, and the high-heat-conducting powder may be a metal powder or a terrarium, such as copper, sulphur, silver, chrome, titanium, artificial diamond particles. , shouting m or an alloy for riding, or a combination of the above various elements. The charging of the crucible can also be carried out by adding a highly volatile solvent, a binder, a dispersing agent, etc. to the high heat conductive powder, and formulating a fluid having a fluidity in a certain weight ratio or volume ratio, in the ship. When the content of _5G_ must be transferred to the appropriate viscosity, the high volatility auxiliary of the towel can be surface, noodles and burning solvents. • The scale is operated by placing one end of the mandrel with the vent hole 31 into the heat-conducting case 1G and spitting it at the _ end u, and the other end can be connected with the machine 4 The squeezing rod ^ 0 of the air squeezing machine can be placed, and the circumferential surface of the non-shrinking end of the heat-conducting shell abuts the circumferential surface at the discharge port of the noodle machine 4G; The water material 50 is pushed forward by the feeding rod 41 at the feeding position of the extruder 4〇, and is advanced in the direction of the heat conducting casing 1〇 along the discharge port of the tC machine, and is generated in the heat conducting casing (7). Dali gas is discharged from the vent hole 31 reserved at the front end of the core rod 3G until the material 50 is satisfied, and the heat transfer is completed until the body 1G is suffocated; then the secret % of the filling is solidified and formulated for different charging materials. The method, material 50 filling and curing stereotypes are slightly unique. If (4) is concerned with the above-mentioned _cake filling low-temperature polymer material t-type fossils, then it is necessary to warm the polymer material before softening. Into the heat conduction (10) 1 〇Θ 'Asia in the positioning block 2G through the cooling secret heat conduction M 1G cooling, up! Tongsi will ', /,, [the movement of the material cooling and solidification purposes. If the dressing % adopts the above-mentioned first method of filling two volatile solvents, the secret temperature (thief ~ aeronautical) can be used for the baking method to evaporate the door, and the viscosity of the material is more and more Thick, finally up to 9 1289191 After the slurry 50 is shaped, the mandrel 3〇 is easily separated due to the shrinkage of the crucible 5〇, and the mandrel 3^ can be easily returned to obtain a capillary structure with a uniform thickness; The heat-conductive housing 1G having the curing material 50 is subjected to high-temperature sintering treatment, and after sintering, a sintered heat guide 6G can be obtained through one end sealing, vacuuming, working liquid, and other end sealing, and the like Guan Qingcheng has a uniform thickness of sintered powder type capillary structure layer 1 as shown in the fifth figure. For the above-mentioned (4)% formed by the above-mentioned _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The collapse problem caused by 'in practice, a variety of low-temperature polymer materials with different softening temperature points can be used to enter the seedlings. According to this, when burning out, it can be burned out according to the temperature. ★ In the towel of the present embodiment, since the mandrel 3〇gp has been extracted from the heat conducting body 10' before the sintering, and the mandrel is not used in the sintering process, the scale and the heat pipe can be avoided in the conventional process. The shell is exposed and combined with the Wei model, so the mandrel 30 can be used repeatedly and effectively improve the product yield. In order to cooperate with the automatic production, the above-mentioned processes can also be controlled and controlled (four), and the production automation can be realized. The main mechanism can include: slurry mixing system, quantitative packing system, slurry cooling setting system, sintering furnace and control Through the control design of the control system, the process timing and time of each process are sequentially scheduled to complete the automated production. Therefore, the above embodiments have many advantages in improving the conventional technology: (1) The slurry is preliminarily shaped in the casing by the molding technique, and the mandrel is taken out before the heat pipe is sintered, and the core is not required to be used in the sintering process. The rod, so it is not difficult to demould the core rod after sintering, can avoid the disadvantages caused by the use of the mandrel Y, effectively improve the process yield; at the same time, it can effectively reduce the production cost and enhance the product competitiveness. (2) The capillary structure layer with uniform thickness can be made by the extrusion process, and the disadvantages of uneven thickness of the capillary structure and false powder filling caused by other methods are avoided. (3) Combining automation equipment can improve mass production. In summary, the present invention has indeed met the requirements of the invention patent, and the patent application 1289191 is filed according to law. However, the above is only a preferred embodiment of the present invention, and it cannot be limited by this. Equivalent modifications or variations made by those who are familiar with this Art of the Invention in accordance with the spirit of the present invention are intended to be included in the scope of the following claims. [Simple description of the diagram] The first figure is a schematic diagram of the process of the conventional sintered heat pipe. The second figure is a thermal analysis diagram of copper powder in the sintering process. The third figure is a flow chart of a preferred process of the sintered heat pipe of the present invention. The fourth picture is the structure of the Wei-type tube in the manufacture of the wealth--the structure of the real drama
意圖 的縱向剖視圖。 第五圖係依第四圖之製程所得的燒結式熱導管 【主要元件符號說明】 … 導熱殼體 定位塊 排氣孔 擠壓桿 熱導管 10 20 31 41 60 縮口端 芯棒 擠壓機 漿料 毛細結構層 11 30 40 50 61A longitudinal section view of the intent. The fifth figure is the sintered heat pipe obtained according to the process of the fourth figure [the main component symbol description] ... The heat conduction shell positioning block vent hole extrusion rod heat pipe 10 20 31 41 60 shrink end mandrel extrusion machine pulp Capillary structure layer 11 30 40 50 61