201122397 、發明說明： 【發明所屬之技術領域】 本發明涉及一種熱管技術，特別是一種熱管的製造方法。 【先前技術】 熱管是一種高效的傳熱元件，目前廣泛運用於各種工業領 域，它主要是通過將金屬管的兩端密封起來，向管内注入適量 的工作液，抽成真空等工藝步驟製成。當熱源對熱管一端加熱 時，工作液吸熱而汽化，蒸汽在壓差作用下，高速流向另一端， 向冷源放出潛熱而凝結，凝結液體在毛細作用下，利用毛細構 造從冷源返回至熱源，如此周而復始，就把熱量高效迅速的從 熱源傳至冷源。 隨著電子產品的小型化及高速化、高效化，其散熱要求也越 來越高，目前傳統的熱管已漸漸不能適應高效的散熱工作，因此 需要有一種熱效率更高的熱管來滿足產品的散熱要求。 【發明内容】 本發明的目的在於提供一種具有高導熱效率熱管的製造方 法。 【實施方式】 參照圖1，本發明所提供的一種熱管的製造方法，其主要由以 下工藝步驟組成： 步驟1，準備空管原料S01 :準備一種沿内壁的軸向上具有兩 組對稱溝槽的空管原料，其結構如圖2所示，金屬管體1内壁上， 相對稱的位置，設有兩組溝槽2，這樣在兩溝槽2之間，是金屬 管體1的光滑内壁，溝槽2沿管體1的軸向設置，軸向開通于管 201122397 體1上，其作用是用於流通蒸汽； 步驟2，裁切空管S05 :將空管切割為預定長度； 步驟3，縮口一 S07及密封一 S08 :將裁切好的空管的第一 端縮口並將縮口密封密封，優選的，密封方式採用點焊； 步驟4，填粉燒結S09-S12 :從空管第二端填入過篩的粉末 原料，並對填粉S10後的管進行燒結S11，在管内形成分別與兩組 溝槽相對應的粉末燒結部；粉末原料為常規材料，例如碳粉、金 屬粉、纖維粉或幾種混合，該粉末原料為經過筛選的粉末，在篩 選後，會過濾掉大部分小於溝槽間隙的粉末，因此在燒結後，溝 槽部便會形成了特定的流通蒸汽的溝槽；如圖3和圖4,所表示為 填粉燒結後管體1内部的結構，在管體1内，與兩溝槽部2相鄰 的部分，均形成了粉末燒結部3,該粉末燒結部3之間會有毛細間 隙，便可以吸水，配合溝槽2形成熱交換傳導； 其中，作為本發明的優選實施方式，步驟4主要由下述工藝 步驟組成： 步驟4. 1，插棒S09 :為使得填粉工藝更為方便合理，在經 步驟3處理後，從空管第二端插入與空管内徑相適配的模具棒， 插入空管内的模具棒6設有與空管内兩組溝槽位置相對應的平面 61，如圖3及圖11所示，給出了兩種不同實施方式的模具棒：圖 3中的模具棒6在插入管體1内後，形成圖4所示的結構，其兩端 平面61分別與兩溝槽2對稱；圖11所示的模具棒6，為本發明的 另一種實施態樣，其兩端為呈梯形凹入的形狀，凹入的梯形底面 201122397 即為平面61 ’在插入管體1後，其結構如圖12所示，兩側的平面 61分別對應了兩溝槽部2 ; 步驟4.2，填粉S10 :在插入模具棒後，從空管第二端插管後 空出的部位填入過篩的原料粉末形成燒結部3:第—種模具棒的實 施方式中，填粉後的結構如圖5所示；第二種模具棒的實施方式 中’填粉後的結構如圖13所示； 步驟4.3，燒結S11 :對填粉後的管進行燒結；201122397, invention description: TECHNICAL FIELD The present invention relates to a heat pipe technology, and more particularly to a method of manufacturing a heat pipe. [Prior Art] Heat pipe is a highly efficient heat transfer element. It is widely used in various industrial fields. It is mainly made by sealing the two ends of the metal pipe, injecting a proper amount of working fluid into the pipe, and vacuuming it. . When the heat source heats one end of the heat pipe, the working fluid absorbs heat and vaporizes, and the steam flows to the other end at a high speed under the pressure difference, and the latent heat is released to the cold source to be condensed, and the condensed liquid is returned to the heat source by the capillary structure under capillary action. By the way, the heat is transferred from the heat source to the cold source efficiently and quickly. With the miniaturization, high-speed and high-efficiency of electronic products, the heat dissipation requirements are also getting higher and higher. At present, the traditional heat pipes have gradually failed to adapt to efficient heat dissipation work, so there is a need for a heat-efficient heat pipe to meet the heat dissipation of the products. Claim. SUMMARY OF THE INVENTION An object of the present invention is to provide a method of manufacturing a heat pipe having high heat conductivity. [Embodiment] Referring to Figure 1, a method for manufacturing a heat pipe according to the present invention is mainly composed of the following process steps: Step 1: Preparing an empty pipe raw material S01: preparing a pair of symmetric grooves along the axial direction of the inner wall The structure of the empty pipe is as shown in FIG. 2, and the inner wall of the metal pipe body 1 is provided with two sets of grooves 2 at the symmetrical position, so that between the two grooves 2, the smooth inner wall of the metal pipe body 1 is The groove 2 is disposed along the axial direction of the pipe body 1, and is axially opened on the body 1 of the pipe 201122397 for the purpose of circulating steam; Step 2, cutting the empty pipe S05: cutting the empty pipe into a predetermined length; Step 3 Shrinking one S07 and sealing one S08: shrinking the first end of the cut empty tube and sealing and sealing the shrinkage. Preferably, the sealing method is spot welding; Step 4, filling and sintering S09-S12: from empty The second end of the tube is filled with the sieved powder raw material, and the tube after the powder filling S10 is sintered S11, and a powder sintered portion corresponding to the two sets of grooves is formed in the tube; the powder raw material is a conventional material such as carbon powder, Metal powder, fiber powder or several kinds of mixed materials After screening, the powder will be filtered out of most of the powder smaller than the groove gap, so after sintering, the groove will form a specific flow of steam; as shown in Figure 3 and Figure 4, It is shown as a structure inside the tubular body 1 after powder filling and sintering. In the tubular body 1, a portion adjacent to the two groove portions 2 is formed with a powder sintered portion 3, and there is a capillary gap between the powder sintered portions 3. The water can be absorbed, and the groove 2 is formed to form heat exchange conduction; wherein, as a preferred embodiment of the present invention, the step 4 is mainly composed of the following process steps: Step 4. 1. Inserting the rod S09: to make the filling process more convenient Reasonably, after processing in step 3, a mold rod adapted to the inner diameter of the empty tube is inserted from the second end of the empty tube, and the mold rod 6 inserted into the empty tube is provided with a plane 61 corresponding to the two sets of groove positions in the empty tube. As shown in FIG. 3 and FIG. 11, two different embodiments of the mold bar are given: after the mold bar 6 in FIG. 3 is inserted into the pipe body 1, the structure shown in FIG. 4 is formed, and the two end planes 61 are respectively Symmetrical with the two grooves 2; the mold bar 6 shown in Fig. 11 is another In the embodiment, the two ends are trapezoidal concave shapes, and the concave trapezoidal bottom surface 201122397 is the plane 61'. After inserting the pipe body 1, the structure is as shown in FIG. 12, and the planes 61 on the two sides respectively correspond to two. Step 4. Filling powder S10: After inserting the mold rod, fill the sieved raw material powder from the portion which is vacated after the second end of the empty tube to form the sintered portion 3: implementation of the first mold rod In the mode, the structure after filling is shown in FIG. 5; in the embodiment of the second mold rod, the structure after filling is shown in FIG. 13; Step 4.3, sintering S11: sintering the powdered tube;
步驟4.4，拉棒S12 :在燒結後，將模具棒從管内拔出，便完 成了步驟4。 請參照附圖，圖6給出了模具棒第一種實施方式在燒結後產品 的結構⑷4給出了模具棒第二種實施方式在燒結後產品的結構。 在經步驟4處理後，便進入步驟5的注液真空：在經縮口二 處理後的管⑴m液’並將管⑽真空；為便於注液真空的 操作，作為本發明的優選實施方式，步驟5又可細分為. 步驟5.卜縮口二則：將填粉燒結後的管的第二端縮口； 步驟5. 2 ’注液真空S15 : 管内抽真空。 從管體的缩口 端〉主入工作液，並將 經本步驟處理後，管體的結構如圖7及圖9所示，在圖7及 圖9中，表示了在注液真空後管體丄内的結構，兩邊的燒結部3 分別位於兩溝槽2處，而管體i内光滑内壁和溝槽2之間是供基 汽流通的蒸汽通道真空空間4，在其中注人了卫作液5。另外，考 201122397 慮到工藝合雜，優選在步驟5注液真空處理前進行退火。 在上述步驟後，便進人步驟6的密#二s17:將管縮口後的 弟一端密封，形成密封的熱管，同樣的，優選希封方式為點知。 本發明所採用的空管原料，在内表面設有溝槽，因此作為優 選方式，本發明還提供了該空管原料的製作方法，主要包括下述 工藝步驟： 步驟1.1，準備金屬空管材料（通常是銅管棬）以及和金屬管相 適配的圓柱模具，如圖15所示，該圓枉模具7外壁沿軸向設有兩 組對稱的溝槽齒71，溝槽齒71可用於擠壓切割空管内壁，從而在 空管内形成溝槽2;首先將空管材料整直S〇2,然後藉由機器拉伸 s〇3方式將圓柱模具7拉過金屬空管内部，通過溝槽齒Ή在金屬 Β内壁上沿軸向擠壓而刮出溝槽； 步驟1. 2，將擠壓切割好溝槽的金廣管持續拉伸S03 ’直到得 到需要口徑尺寸的空管原料。 實際操作時’拉伸空管會產生氧化，而且裁切505也會產生 油污潰，並且由於提供的空管原料會有〆定捲曲’而拉伸S〇3時 空管受力較大，會影響空管的形狀，所以一般在步驟h2的拉伸 前，需對空管進行整直，且在步驟2的裁切SG5空管前’需對空 笞進行探傷S04並且電腦紀錄傷口位置，並在裁切空嘗後，對空 管進行清洗S06,以保證空管品質。此處給出一個實施例進行參考： 在前面所述的各種工藝過程中，空管在拉伸、裁切以及點焊 201122397 均會產生下角管，使得製備的熱管不符 傷口的部__域棄掉，《免_=；^度蚊寸與帶有 經步驟5處理後，對熱管進行定 對熱管加熱，並在____ 4方式-般為： 進行牛心 _處_，切多餘長度，之後便可 進灯v驟6的密封二Si?。 在步驟6的密封處理後，可以將埶 ,,4tft ·、折身s18為需要的形狀。 夺折考S18後的熱管壓扁S19， A甘.g扭 '缚型熱管8 :壓扁方 向叮選擇正對管體1内的溝槽2,如圖7所 .所不的箭頭方向，壓扁後 的内1。構如圖8;此外，也可以選擇 一 ^光π官壁的方向，即如 圖9所述箭頭的方向，壓扁則後的 ^ ^ 、、、°構如圖10 ;最終壓扁 形成的薄型熱管8，結構如圖12所示。 此外，在經上述4步驟後，還有後期處理卫藝S2G’在此 不再贅述。 本發明k供了一套完整的熱管製造方、、么^ 决’採用本發明的工藝 方法所製造的熱管，在内壁上設有溝槽 # + 使得溝槽部能夠有利 於蒸汽從熱管的熱區流向冷凝區，提高 熱傳導效率，而溝槽部 内側設有粉末燒結部，其粉末經過篩選後大部饮大"胃、 可避免粉末卡進溝槽造成不良影響，粉末燒結呷之門的^ a門宗 能夠儲存較多的水量，從而增大了傳執晉 “、、’迷使得冷凝工作液體 在毛細間隙内的流動阻力較小，可輔助扭古 杈可熱管的導熱性能。 雖然本發明參照較佳實施例而進行說 _ 在不脫離本發明之精神及料内，對於本\ _應了解的疋 屬技術領域中具 201122397 有通常知識者而言，仍得有許多變化及修改。因此，本發明並不 限制於所揭露的實施例，而是以後附申請專利範圍之文字記載為 準，即不偏離本發明申請專利範圍所為之均等變化與修飾，應仍 屬本發明之涵蓋範圍。 【圖式簡單說明】 下面結合附圖和具體實施方式作進一步說明： 圖1為本發明的工藝流程圖； 圖2為空管原料的橫截面示意圖； 圖3為模具棒的結構示意圖； 圖4為管體内插入模具棒的結構示意圖； 圖5為管體内填粉後的結構示意圖； 圖6為管體燒結後的内部結構示意圖； 圖7為管體注液真空後的内部結構示意圖； 圖8為管體壓扁後的内部結構示意圖； 圖9為另一實施例的管體注液真空後的内部結構示意圖； 圖10為另一實施例的管體壓扁後的内部結構示意圖； 圖11為模具棒另一種實施方式的結構示意圖； 圖12為模具棒插另一種實施方式入管體内的結構示意圖； 圖13為模具棒插另一種實施方式的管體内填粉後的結構示意圖； 圖14為模具棒插另一種實施方式的管體燒結後的内部結構示意 圖； 圖15為圓柱模具的結構示意圖； 201122397 圖16為薄型熱管的結構示意圖 【主要元件符號說明】 1 金屬管體 2 3 4 5 • 6 7 溝槽 燒結部 蒸汽通道真空空間 工作液 模具棒 圓柱模具 8 薄型熱管 61 模具棒相對應平面 71 溝槽齒Step 4.4, Pull rod S12: After sintering, the mold rod is pulled out of the tube, and step 4 is completed. Referring to the drawings, Figure 6 shows the structure of the first embodiment of the mold bar after sintering. (4) 4 shows the structure of the second embodiment of the mold bar after sintering. After the treatment in step 4, the liquid infusion vacuum of step 5 is entered: the tube (1) m liquid 'after the shrinkage two treatment' and the tube (10) is vacuumed; as a convenient embodiment for the liquid injection vacuum, as a preferred embodiment of the present invention, Step 5 can be further subdivided into. Step 5. Buffering two: shrinking the second end of the tube after sintering the powder; Step 5. 2 'Injecting vacuum S15: Vacuuming inside the tube. From the neck end of the pipe body> the main working fluid, and after the treatment of this step, the structure of the pipe body is as shown in Fig. 7 and Fig. 9, in Fig. 7 and Fig. 9, the pipe body is shown after the liquid filling vacuum. In the structure of the crucible, the sintering portions 3 on both sides are respectively located at the two grooves 2, and between the smooth inner wall of the tube body i and the groove 2 is a steam passage vacuum space 4 through which the base steam flows, in which the guard is made Liquid 5. In addition, in the test 201122397, in view of the complicated process, it is preferable to perform annealing before the step 5 vacuum treatment. After the above steps, the second step s17 of the step 6 is sealed: the sealed one end of the tube is sealed to form a sealed heat pipe. Similarly, the sealing method is preferably known. The hollow pipe raw material used in the present invention is provided with a groove on the inner surface. Therefore, the present invention also provides a method for manufacturing the empty pipe raw material, which mainly comprises the following process steps: Step 1.1, preparing a metal hollow pipe material (usually a copper tube) and a cylindrical mold adapted to the metal tube, as shown in Fig. 15, the outer wall of the round mold 7 is provided with two sets of symmetric groove teeth 71 in the axial direction, and the groove teeth 71 can be used for Squeeze the inner wall of the empty tube to form the groove 2 in the empty tube; first straighten the empty tube material S〇2, and then pull the cylindrical mold 7 through the inside of the metal hollow tube by the machine stretching s〇3, through the groove The groove squeezing is axially squeezed on the inner wall of the metal crucible to scrape the groove; Step 1. 2, the extruded gold tube of the groove is continuously stretched S03' until an empty pipe material of a required size is obtained. In actual operation, 'stretching the empty tube will cause oxidation, and the cutting 505 will also cause oil smearing, and because the supplied empty tube material will have a determined curl', the tensile S〇3 time tube will be subjected to a large force, which will affect The shape of the empty pipe, so generally before the stretching of step h2, the empty pipe needs to be straightened, and before the cutting of the SG5 empty pipe in step 2, it is necessary to detect the empty space S04 and the computer records the wound position, and After cutting the empty taste, clean the empty pipe S06 to ensure the quality of the empty pipe. An embodiment is given here for reference: In the various processes described above, the empty tube will produce a lower angle tube in the stretching, cutting and spot welding 201122397, so that the prepared heat pipe does not conform to the part of the wound. Off, "free _=; ^ degree mosquito inch and with the treatment of step 5, the heat pipe is fixed on the heat pipe, and in the ____ 4 way - the general: the cow heart _ _, cut the excess length, after It is possible to enter the seal II of the lamp v. After the sealing treatment of the step 6, the 埶, 4tft, and the folded body s18 can be in a desired shape. After the test of S18, the heat pipe is flattened S19, A Gan.g twisted the 'binding heat pipe 8: the flattening direction 叮 selects the groove 2 in the pipe body 1, as shown in Fig. 7. Inside the flat 1. Figure 8; In addition, you can also choose a direction of the light π official wall, that is, the direction of the arrow as shown in Figure 9, after the flattening ^ ^,,, ° structure as shown in Figure 10; finally flattened The thin heat pipe 8 has a structure as shown in FIG. In addition, after the above four steps, there is still a post-processing Weiyi S2G' which will not be described here. The invention provides a complete heat pipe manufacturer, and the heat pipe manufactured by the process of the invention has a groove # + on the inner wall so that the groove portion can facilitate the heat of the steam from the heat pipe. The zone flows to the condensing zone to improve the heat transfer efficiency, and the inner side of the groove portion is provided with a powder sintering portion, and the powder is filtered and most of the drink is large, and the stomach can be prevented from being stuck into the groove to cause adverse effects, and the powder is sintered. ^ a door can store more water, thus increasing the transfer of the "," fans make the flow resistance of the condensing working fluid in the capillary gap is small, which can help the thermal conductivity of the twisted heat pipe. The invention is described with reference to the preferred embodiments. Without departing from the spirit and scope of the invention, many variations and modifications are possible in the ordinary skill of the art. Therefore, the present invention is not limited to the disclosed embodiments, but is intended to be equivalently modified and modified without departing from the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS [Brief Description of the Drawings] The following is a further description of the accompanying drawings and specific embodiments: Figure 1 is a process flow diagram of the present invention; Figure 2 is a schematic cross-sectional view of an empty tube material; Figure 4 is a schematic view showing the structure of the mold rod inserted into the tube; Figure 5 is a schematic view of the structure after filling the tube body; Figure 6 is a schematic view of the internal structure of the tube body after sintering; FIG. 8 is a schematic view showing the internal structure of the pipe body after being crushed; FIG. 9 is a schematic view showing the internal structure of the pipe body after another vacuum; FIG. 10 is a tube of another embodiment; FIG. 11 is a schematic structural view of another embodiment of the mold rod; FIG. 12 is a schematic view showing the structure of the mold rod inserted into the tube body; FIG. 13 is a schematic view of the mold rod inserted into another embodiment. Schematic diagram of the structure after filling the tube body; Figure 14 is a schematic view of the internal structure of the tube after the mold rod is inserted into another embodiment; Figure 15 is a schematic view of the structure of the cylinder mold; 97 Figure 16 is a schematic view of the structure of a thin heat pipe [Description of main components] 1 Metal pipe 2 3 4 5 • 6 7 Groove sintering steam channel vacuum space working fluid die bar cylindrical die 8 Thin heat pipe 61 Die bar corresponding plane 71 Groove tooth