1281018 九、發明說明： 【發明所屬之技術領域】 本發明與熱管相關，尤指-種熱管多孔結構層之製造方法。 【先前技術】 隨著大型積體電路技術之不斷進步及廣泛應用，資lfi產業之發展 突飛猛進，高頻高速處理器不斷推出。由於高頻高速運行使得處理器 單位k間產生大量齡，如不及時排除這些熱量將彳丨起處理器自身溫 度之升高’對系狀安全及性能造雜大，目前散制題已經成 為新一代高速處理器推出時必需解決之問題。 由於對散熱需求不斷提高，新式散練置不斷出現。將熱管應用 於電子几件散熱就是其中-種，其係、利用液體在氣、液兩態間轉變時 溫度保持不變而可吸收或放出大量歸之原虹作，—改傳統散熱器 單純以金屬熱傳導方式散熱而效率有限之狀況。熱管係於一密封低壓 管形殼體内錄適量汽化熱高、流動性好、化學性質穩定、沸點較低 之液態物質，如水、乙醇、丙_，_魏態物質受熱和冷卻而在 氣、液兩態_變時，魏或放出大量歸而使熱量由管體一端迅速 傳到另一端。 一般於熱管_面上設置纽結構層，藉域纽結構層產生毛 細作用力驅動冷凝後之液體回流。而由於毛細作用力與多孔結構層孔 隙大小成反比，即絲之直縣小毛細_力越大，因此為達到較大 之毛細作用力而便於液體回流，所使用之多孔材料層孔隙之孔徑越小 1281018 越好。然’由於流體在流動過程中通過流道之孔徑越小，流體所受之 摩擦阻力及黏滯力越大，因此使得液體回流之阻力增加、流速變小。 S熱管吸收熱量之端部吸收熱量增加時，蒸發加快，而液體由於回流 阻力而速度減小，無法迅速補充吸熱端之蒸發液體。容易造成乾燒， 損壞熱管。因此熱管多孔結構層之孔隙大小及孔隙分佈直接影響熱管 之性能，故希望能提供一種能有效控制孔隙大小分佈之熱管之製造方 法。 【發明内容】 本發明所要解決之技術問題係提供一種易於控制熱管多孔結構層 孔隙分佈之熱管之製造方法。 本發明熱管多孔結構層之製造方法包括以下步驟：丨）經由刮刀成 型製作至少一片狀生胚；2)利用前述之至少一片狀生胚製作與熱管之 金屬管内壁相適應之筒狀生胚；3)將該筒狀生胚置入金屬管内；4)對 該已置入生胚之金屬管進行燒結，形成多孔結構層。 本發明通過製成不同顆粒大小之生胚再置人金屬管内燒結形成不 同孔么之多孔結構層，易於控制孔隙大小之分佈。 【實施方式】 下面參照附圖，結合實施例對本發明作進一步說明。 如第-圖及第一圖所不，熱管100包括_中空且封閉之金屬管1〇 及設於金屬管1G内壁面之多孔結構層3Q，該金屬管1G可由銅或其它 導熱性能良好之金屬製成，金屬管1Q之橫截面呈騎，可以理解地， 1281018 金屬管1G之橫截面也可為多邊形等其它形狀，如板形熱管其橫截面為 方形。金屬管1〇内抽成真空狀態並填充有適量之工作液體。 如第二圖所示為本發明熱管多孔結構層製造方法流程圖，下面結 口第四圖至第八目詳細介紹本發雜管之多孔結構層之製造方法： 百先，通過刮刀法製作片狀生胚，該片狀生胚42〇係用於燒結 成型該多孔結構層30。 此過程中首先用刮刀成型製作帶狀生胚4〇，如第四圖所示為刮刀 成51製作T狀生胚40之不意圖，製造帶狀生胚4()所需之漿料4〇〇置 於成型機之進«置内，料躺適當_之粉末、溶劑 以及黏結劑混合而成，其中粉末、溶劑以及黏結劑所佔之質量百分比 畚末可為陶瓷粉末、金屬粉末如 、甲苯等，可以促使粉末之分散 为別約為 40-80%、10-40%及 5-25%。珠 銅粉等，溶劑採用有機溶劑，如乙醇、1281018 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a heat pipe, and more particularly to a method of manufacturing a porous structure layer of a heat pipe. [Prior Art] With the continuous advancement and wide application of large-scale integrated circuit technology, the development of the lfi industry has advanced by leaps and bounds, and high-frequency high-speed processors have been continuously introduced. Due to the high-frequency and high-speed operation, the processor unit k generates a large number of ages. If the heat is not removed in time, the temperature of the processor itself will rise. The safety and performance of the system are mixed. The current problem has become a new problem. A problem that must be solved when a generation of high-speed processors is introduced. As the demand for heat dissipation continues to increase, new styles are constantly emerging. The application of heat pipes to several pieces of electrons is one of them. The system uses the liquid to change the temperature between gas and liquid. The temperature can be kept unchanged and can absorb or release a large amount of original red works. The metal heat conduction method is used for heat dissipation and limited efficiency. The heat pipe is in a sealed low-pressure tubular casing, and the liquid substance with high vaporization heat, good fluidity, stable chemical property and low boiling point is recorded, such as water, ethanol, C-, and Wei-state substances are heated and cooled in the gas, When the liquid is in two states, the Wei or the release of a large amount of heat causes the heat to pass from one end of the tube body to the other end. Generally, a neo-structure layer is disposed on the heat pipe _ surface, and a capillary force is generated by the domain structure layer to drive the condensed liquid to recirculate. However, since the capillary force is inversely proportional to the pore size of the porous structural layer, that is, the smaller the capillary size of the straight wire of the wire, the larger the capillary force is, and the liquid is recirculated, and the pore diameter of the porous material layer used is larger. Small 1281018 is better. However, the smaller the pore diameter of the fluid passing through the flow path during flow, the greater the frictional resistance and viscous force of the fluid, so that the resistance of the liquid reflux increases and the flow velocity becomes smaller. When the heat absorbed by the end portion of the heat pipe of S heat is increased, the evaporation is accelerated, and the liquid is reduced in speed due to the resistance of the reflux, so that the vaporized liquid at the endothermic end cannot be quickly replenished. It is easy to cause dry burning and damage the heat pipe. Therefore, the pore size and pore distribution of the porous structure of the heat pipe directly affect the performance of the heat pipe, so it is desirable to provide a heat pipe manufacturing method capable of effectively controlling the pore size distribution. SUMMARY OF THE INVENTION The technical problem to be solved by the present invention is to provide a method for manufacturing a heat pipe which is easy to control the pore distribution of a porous structural layer of a heat pipe. The method for manufacturing the porous structure layer of the heat pipe of the present invention comprises the steps of: preparing at least one piece of green embryo by doctor blade forming; 2) making a tubular shape suitable for the inner wall of the metal tube of the heat pipe by using at least one piece of the raw embryo as described above; 3) The cylindrical embryo is placed in a metal tube; 4) The metal tube into which the green embryo has been placed is sintered to form a porous structural layer. The invention can form a porous structure layer of different pores by forming raw embryos of different particle sizes and then sintering them in a metal tube, and it is easy to control the distribution of pore size. [Embodiment] Hereinafter, the present invention will be further described with reference to the accompanying drawings. As shown in the first and first figures, the heat pipe 100 includes a hollow and closed metal pipe 1〇 and a porous structural layer 3Q disposed on the inner wall surface of the metal pipe 1G. The metal pipe 1G may be made of copper or other metal having good thermal conductivity. The cross section of the metal tube 1Q is made to ride. It can be understood that the cross section of the 1281018 metal tube 1G can also be other shapes such as a polygon, such as a plate-shaped heat pipe having a square cross section. The metal tube is evacuated into a vacuum and filled with an appropriate amount of working liquid. As shown in the second figure, the flow chart of the method for manufacturing the porous structure of the heat pipe of the present invention is shown in the following figure. The fourth to eighth objects of the junction are described in detail in the manufacturing method of the porous structural layer of the hair tube: The flaky green embryo 42 is used for sintering the porous structural layer 30. In this process, a strip-shaped green embryo is first formed by a doctor blade. As shown in the fourth figure, the scraper is used to make a T-shaped embryo 40, and the slurry required for the strip-shaped green embryo 4 () is produced. The crucible is placed in the inside of the molding machine, and the powder, the solvent and the binder are mixed. The mass percentage of the powder, the solvent and the binder may be ceramic powder, metal powder such as toluene. Etc., the dispersion of the powder can be promoted to be about 40-80%, 10-40% and 5-25%. Bead copper powder, etc., the solvent is an organic solvent such as ethanol,
料’如聚乙稀醇(P〇lyyinyl赴油^， (Polyvinyl Butyral，簡稱 pvb)等。刮 口 310處，漿料4〇〇湳出 11Π I ’簡稱PVA)或聚乙烯醇縮丁駿The material 'such as polyethylene glycol (P〇lyyinyl to oil ^, (Polyvinyl Butyral, pvb for short), etc. at the scraper 310, the slurry 4 Π 11Π I ’ (referred to as PVA) or polyvinyl condensate
結劑大多沉積於帶狀生胚4〇之下表面形成黏結劑層41〇。 如第五_示，絲織之帶狀生料裁剪成與金 以及在揮發時形成微小·，_侧具有易溶及易燒除特性之材 料’如聚乙嫌 gfYPfilwirwl Λ y_____ 8 1281018 屬管⑽内壁面大小相應之片狀生胚，相應地該片狀生胚42〇包括 一黏結劑層430。 其次’製作筒狀生胚50。Most of the cement is deposited on the surface of the strip-shaped green embryo to form a layer of adhesive 41. As shown in the fifth _, the ribbon-shaped raw material of the woven fabric is cut into gold and the material which is formed at the time of volatilization, and the _ side has the characteristics of easy dissolution and easy to burn off, such as polyethyl b. gfYPfilwirwl Λ y_____ 8 1281018 genre (10) The inner wall surface corresponds to a sheet-like green embryo, and correspondingly, the sheet-like green embryo 42 includes a binder layer 430. Next, a cylindrical embryo 50 is produced.
如第六圖所示，首先提供-拉桿60，該拉桿60可採用實心之不錄 鋼棒體，拉桿60之橫截面形狀為_，可以理解地，該拉桿6〇之橫 截面形狀也可為橢圓、方形、三角形等其它形狀。然:後將片狀生胚杨 沿拉桿⑹之外絲捲設職辦細Q，額狀生㈣之上表面與 拉桿6〇相接觸，筒狀生胚5〇之黏結劑層別朝向外側。 然後，如第七圖及第人圖所示，將上述捲設於拉桿⑽外表面之筒 狀生胚50與挪6G —並置爾㈣撕鮮此時筒狀生胚 %之黏結劑層51G尚未與金屬管1〇之内壁面相接觸。錢通過轉動拉 桿6〇使拉桿60沿金屬管10内壁圓周對筒狀生胚施加徑向作用力， 使筒狀生胚50藉由1黏姓郝爲<1Α 士 .....°一層510内之黏結劑黏貼於金屬管1〇之内 壁面。 m取後，對上述已置入筒狀生胚5〇之金屬管ι〇進行燒結，首先緩 ^ ’、、、至450-500 C ’此時筒狀生胚5〇内之黏結劑裂解並產生⑽等 讀排出同狀生胚50之外，然後加熱至50_C並保持大約10_60 为鐘，使筒狀生胚5G内之粉末顆«發生金相之結合，從而形成如第 在該燒結過程中可將拉桿6〇保留於金屬管ι〇内，待燒結結束之 9 1281018 後抽出，也可在燒結之前抽出，然後再進行燒結。 在完成上述多孔結構層3〇之製作後，對金屬管1〇填充工作液體 並對金屬管10抽真空及封口，即可得到熱管1〇〇。 在上述製程中，僅於金屬管1〇置入一層筒狀生胚5〇，筒狀生胚 50内之黏結劑在燒結過程帽解形成氣體溢出、粉末雛間發生金相 之結合從而形鮮層之純結構層3G。絲料4⑻所採驗末顆粒之 大小不同，其燒結之後所形成多孔結構層3〇之孔隙之孔徑大小亦不 同’因此可通過_不狀小粉末雛之漿料而製成不同之生胚，最 後經燒結得到不同孔徑之多孔結構層。可以理解地，還可以通過選用 多種粉末雛不同之漿料製成多個不同之生胚，然後將所述各不同之 生胚分別置入銅管内，最後燒結形成多層多孔結構層。 如第九圖至第十一圖所示為雙層多孔結構層之製作過程示意圖。 首先如第九圖所示，熱管100,包括金屬管1〇及設於金屬管1〇内壁面 之多孔結構層30,，該多孔結構層3〇，包括一孔隙直徑相對較小之内層 32及一孔隙直徑相對較大之外層34。 如第十圖所示，當製造上述多層多孔結構層3〇,時，首先分別選用 粉末顆粒獨之祕製成⑽生胚a及外層生胚M，其巾内層生胚 52所選用漿料之粉末顆粒小於外層生胚M所選用漿料之粉末顆粒。其 次，將内層生胚52沿拉桿60外表面捲成圓筒狀，外層生胚％沿内層 生胚52之外表面捲成圓筒狀，從而該内、外層生胚52、&分層捲設 於拉桿60之外表面上。 1281018 如第十—圖獅’錢將上叙内、外層生胚52、54及拉桿6〇 • 一並插入金屬管10内，同樣通拉桿60施力使内、外層生庇52、 54之間黏結同af使外層生胚％與金屬# 1〇内壁相黏結。 最後通過燒結使内、外層生胚AM内之黏結劑裂解排出生胚幻、 54外’生胚52、54内之粉末顆粒間發生金相之結合從而分別形成如第 九圖所示之多孔結構層32、34。 • 可以理解地，同樣可以製作三層或更多層之多孔結構層。而不同 之生胚於拉桿外捲設之順序不同亦可製得孔隙大小排列不同之多層多 孔❿構層’第九圖所不為沿金屬；I； 1〇之徑肖向外孔徑遞增之多孔結構 曰若先將生胚54捲没於拉桿6〇外表面，然後將生胚52沿生胚Μ 外表面捲狀，卿成沿金屬㈣之徑向向外·直徑遞減之多孔 結構層。 本發明通膽成不同之生胚再置人金屬如，經燒結形成不同之 _ ’孔、”口構層’製程簡單且易於控制多孔結構層之孔隙分佈。 ‘上所述，本發贿合發明糊要件，爰紐提出專辦請。惟， 以上所述者僅為本發明之較佳實施例，舉凡熟悉本案技藝之人士，在 友依本發明精神所作之等效修飾或變化，皆應涵蓋於以下之申請專利 範圍内。 【圖式簡單說明】 第一圖係熱管沿軸向之截面示意圖。 第二圖係熱管沿徑向之截面示意圖。 11 1281018 第一圖係本發明熱管？孔結構層之製造方法流程圖。 第四圖係刮刀成型製造帶狀生胚之示意圖。 第五圖係片狀生胚之示意圖。 第六圖係緣生祕設於轉外表面軸筒狀生胚之示意圖。 第七圖係拉桿謂狀生胚置人金屬管之示意圖。 第八圖係筒狀生胚置人金屬管内之剖視圖。As shown in the sixth figure, a pull rod 60 is first provided. The pull rod 60 can adopt a solid non-recording steel rod. The cross-sectional shape of the pull rod 60 is _. It can be understood that the cross-sectional shape of the pull rod 6 can also be Other shapes such as ellipse, square, triangle, etc. However: after the flaky embryos are placed along the tie rods (6), the upper surface of the frontal (4) is in contact with the tie rods, and the layer of the cylindrical green embryos is oriented toward the outside. Then, as shown in the seventh figure and the human figure, the cylindrical green body 50 and the 6G-collateral (four) which are wound on the outer surface of the tie rod (10) are detached, and the adhesive layer 51G of the cylindrical green embryo is not yet It is in contact with the inner wall surface of the metal pipe. The money exerts a radial force on the cylindrical green body along the circumference of the inner wall of the metal pipe 10 by rotating the rod 6 ,, so that the cylindrical green body 50 is layered by 1 郝 为 1 <1Α.....° The adhesive in 510 is adhered to the inner wall surface of the metal tube. After m is taken, the metal tube ι which has been placed into the cylindrical green embryo is sintered, firstly, the curing agent is cracked in the cylindrical body 5 此时 and then to 450-500 C ' Produce (10) and other readings to discharge the homomorphous embryo 50, and then heat to 50_C and keep about 10_60 minutes, so that the powder particles in the cylindrical green embryo 5G are combined to form a metal phase, thereby forming as in the sintering process. The tie rod 6〇 can be retained in the metal tube ι, and can be withdrawn after the end of the sintering of 91281018, or can be extracted before sintering, and then sintered. After the completion of the fabrication of the porous structural layer 3, the metal tube 1 is filled with a working liquid, and the metal tube 10 is evacuated and sealed to obtain a heat pipe. In the above process, only a layer of cylindrical green embryos are placed in the metal tube 1〇, and the bonding agent in the cylindrical green body 50 is formed into a gas overflow during the sintering process, and a metal phase is formed between the powdered chicks to form a fresh shape. The pure structural layer of the layer is 3G. The size of the particles at the end of the wire 4(8) is different, and the pore size of the pores formed by the porous structure layer 3 after sintering is also different. Therefore, different raw embryos can be made by the slurry of the small powder. Finally, a porous structure layer having different pore diameters is obtained by sintering. It can be understood that a plurality of different green embryos can also be prepared by selecting a plurality of different powders, and then the different embryos are separately placed in a copper tube and finally sintered to form a multilayer porous structure layer. As shown in the ninth to eleventh drawings, a schematic diagram of the manufacturing process of the double-layer porous structure layer is shown. First, as shown in FIG. 9 , the heat pipe 100 includes a metal pipe 1 and a porous structural layer 30 disposed on the inner wall surface of the metal pipe 1 , and the porous structural layer 3 includes an inner layer 32 having a relatively small pore diameter and A layer 34 having a relatively large pore diameter. As shown in the tenth figure, when the above-mentioned multilayer porous structure layer 3 is manufactured, firstly, the powder particles are separately selected to be made (10) the raw embryo a and the outer layer raw embryo M, and the inner layer of the inner layer 52 is selected for the slurry. The powder particles are smaller than the powder particles of the slurry selected for the outer layer M. Next, the inner layer green embryo 52 is rolled into a cylindrical shape along the outer surface of the tie rod 60, and the outer layer raw embryo% is rolled into a cylindrical shape along the outer surface of the inner layer green embryo 52, so that the inner and outer layers of the embryo 52, & layered roll It is provided on the outer surface of the tie rod 60. 1281018 If the tenth-to-lion's money will be inserted into the inner tube, the outer layer of the embryo 52, 54 and the tie rod 6〇, and inserted into the metal tube 10, the same force is applied to the rod 60 to make the inner and outer layers between 52 and 54 Bonding with af causes the outer layer of raw embryo to adhere to the inner wall of metal #1〇. Finally, by sintering, the binder in the inner and outer layers of the embryo AM is lysed and discharged, and the metallurgical bonds between the powder particles in the raw embryos 52 and 54 are formed to form a porous structure as shown in the ninth figure. Layers 32, 34. • It is understandable that three or more layers of porous structural layers can also be produced. Different kinds of raw embryos can be wound up outside the tie rods to produce a multi-layer porous tantalum layer with different pore size arrangement. The ninth map is not along the metal; I; The structure firstly rolls the raw embryo 54 off the outer surface of the tie rod 6 and then rolls the green embryo 52 along the outer surface of the raw embryo, forming a porous structure layer which is radially outward and decreases in diameter along the metal (four). The invention has the advantages that the different raw embryos are re-applied to the human metal, such as sintering, forming different _ 'holes, and the mouth layer layer' has a simple process and is easy to control the pore distribution of the porous structure layer. In addition, the above is only a preferred embodiment of the present invention, and those skilled in the art will be equivalently modified or changed in accordance with the spirit of the present invention. It is covered in the following patent application. [Simplified illustration of the drawings] The first figure is a schematic cross-sectional view of the heat pipe along the axial direction. The second figure is a schematic cross-section of the heat pipe in the radial direction. 11 1281018 The first figure is the heat pipe of the present invention. Flow chart of the manufacturing method of the structural layer. The fourth drawing is a schematic diagram of the production of the strip-shaped green embryo by the blade forming. The fifth drawing is a schematic diagram of the flaky green embryo. The sixth figure is the secreted outer surface of the cylindrical embryo. The seventh figure is a schematic diagram of a metal tube placed on a drawbar. The eighth figure is a cross-sectional view of a cylindrical tube placed in a metal tube.
第九圖係另-鮮結構沿徑向之截面示意圖。 第十圖係另-驗生胚捲設職筒狀生胚之示意圖。 第十一圖係另—生胚置人金屬管内之剖視圖。The ninth figure is a schematic cross-sectional view of the other fresh structure in the radial direction. The tenth figure is another schematic diagram of the embryonic embryonic roll-shaped embryonic embryo. The eleventh figure is a cross-sectional view of another metal tube placed in the artificial embryo.
【主要元件符號說明】 金屬管 10 刮刀 200 進料裝置 300 内層 32 帶狀生胚 40 片狀生胚 420 筒狀生胚 50 内層生胚 52 拉桿 60 熱管 100 、 100, 夕孔結構層 30、30, 出料〇 310 外層 34 漿料 400 黏結劑層 410、430、510 傳送帶 500 外層生胚 54 紅外線裝置 600 12[Description of main components] Metal tube 10 Scraper 200 Feeding device 300 Inner layer 32 Strip-shaped embryo 40 Flake-shaped embryo 420 Cylindrical embryo 50 Inner layer embryo 52 Tie rod 60 Heat pipe 100, 100, Xikong structure layer 30, 30 , discharge 〇 310 outer layer 34 slurry 400 adhesive layer 410, 430, 510 conveyor belt 500 outer layer of raw materials 54 infrared device 600 12