4 253 2 3 經濟部中央樣準局貝工消費合作社印装 A7 B7 五、發明説明（1 ) 本發明係關於一種製造具有外部螺旋翅片之熱交換器管 之方法。本發明進而係關於一種具有外部螺旋翅片之熱交換 器管，及製造熱交換器管之裝置。 一般熱交換器管包含以管嵌合翅片或肋，提供熱交換 之活性面積增大之優點’也提供進行熱交換之流體外部交 叉流動的導引。翅片與外部介質進行熱交換，翅片藉由翅 片與管面之接觸而與管傳熱。 本發明係關於具有外部翅片之管，其包含定長長條材 料係以管周圍之螺旋圖樣施用，其中長條接觸管一緣，因 而係以概略環形及徑向配置延伸，及長條係藉熔接牢固固 定於管面》熔接係用於翅片之結構附接用途，及促進由翅 片傳熱至管之用途，反之亦然。 翅片之結構附接僅需部分黏合，但於最佳傳熱效果方 面可能需要全長翅片皆熔接。 熱交換器接受高外在溫度及高傳熱速率之案例特別要 求最佳傳熱。用於管外側溫度超過管内側溫度之用途，翅 片於工作期間接受到比管更高的溫度，因而熱膨脹可能比 管更大。如此’高周圍溫度傾向於使翅片由管面鬆脫，產 生開口 ’開口交叉意圖傳熱路徑，或許造成黏合斷裂。 歐洲專利申請案第0 303 074 A2號描述一種製造具有 螺旋溶接翅片之金屬之熱交換器管之方法。藉此方法裸露 管段置於車床並旋轉’同時金屬長條由一部沿管於轴向方 向異位的長條配送器配送，因而將長條以螺旋樣式捲繞於 管周圍。翅片及管係利用雷射束加熱。雷射東係以與管軸 本紙張尺度適用中國國家揉準（CNS ) A4現格（210X297公釐） 4 裝 訂 線 · (請先閲讀背面之注意事項再填寫本頁) 4253 2 3 經濟部中央標準局貝工消費合作社印製 Α7 Β7 五、發明説明（2 ) 夾角銳角方向導向翅片，及管上各翅片嵌合區。雷射束溶 化管面’雷射束形成槽道橫向通過長條接近邊緣，如此長 條之緣部熔化。雷射束也於管面反射，如此額外加熱長條 邊緣。 發明人發現固體金屬面傾向於反射大半比例之衝擊其 上之雷射束’如此有效排除大部分能量。它方面，溶融金 屬床反射較小部分雷射東，蒸發金屬電漿反射量又更少。 如此’解釋為何雷射束之熔接一般認為需要極為集中的雷 射束才能成功的理由。較不集中的雷射束通常無法加熱材 料如鋼至足夠開始炼接的溫度β 雷射束加熱效果必然發生於表面。熔化表面部分所需 雷射東照射強度高’但一旦已經開始熔化，則能量吸收速 率開始增高’以集中的雷射束為例，通常增高至熔融金屬 床部分氣化且產生電漿的一點。熔融金屬床及電漿加熱周 圍區而使周園區熔化。但此種方法極為可能於試樣沿雷射 束方向形成針孔或通路。氣化的金屬電漿吸收並散射雷射 束能量’結果加熱臨近環境及周圍設備，以及干擾熱輸入 熔接部的速率。 一種設備其中長條係利用雷射束碰撞長條旁而以邊緣 炫接，唯一達成跨越長條本體熔接之方式係使雷射束形成 切槽或針孔其延伸一路貫穿長條，及沿長條之長度方向缓 慢掃描雷射束藉此熔化邊緣。 介質之不等吸收程度，及雷射束形成針孔之傾向造成 製程難以控制。困難之處在於可能導致熔接毛邊，翅片部 本紙張尺度逍用中國國家橾率（CNS )八4規格（2丨〇><297公釐） ---------^------1Τ------0 r' (請先閱讀背面之注$項再填寫本頁) 經濟部中央橾準局貝工消費合作社印裝 4 2532 3 , A7 B7 五、發明説明（3 ) 分被燒掉，翅月及管出現熱分解，及管形成針孔漏洞。產 生的電漿散逸大量熱至管之周圍部分，以及製造設備周圍 部分。 美國專利A-5 343 015描述一種製造嵌合螺旋翅片之 熱交換器管之方法。翅片捲繞於管上且藉高頻熔接法牢固 固定，其中高頻電能係利用一對電極施用，其中一電極接 觸管，而另一電極接觸翅片位於翅片接觸管之該點。此公 開文獻提示使用雷射束預熱管面，因而補充藉高頻電流流 動感應熱至管。 此種先前技術方法要求兩種提供熱輸入方法之妥當平 衡與控制，兩種方法之固有特性複雜。高頻電流輸入要求 移動電極俾便接觸長條與管，無法有效黏合長條末端β長 條傾向於接收過多熱量，及傾向於於表面過度溶化。利用 雷射束輸入額外熱量之過程複雜，原因為如前文說明管面 之吸收因素複雜。此外，藉雷射束加熱之管表面積必須精 確匹配待捲繞於管上之長條軌跡，更使幾何對正之複雜度 增高。使用此種方法進行實際試驗顯示需要輸入相當熱量 至部件，許多能量喪失至周圍環境，結果總能量效率低。 管過度加熱可能導致再結晶，結果使管結構低劣。 英國專利說明書第1 359 149號說明一種施用螺旋翅 片之熱父換Is管之方法，藉該方法一管段架設於車床並旋 轉，同時一長條由長條配送器沿管段之轴向方向異位配送 ，因而捲繞翅片。翅片末端係藉氣體熔接接合。中間翅片 段未被溶接，而僅利用末端的熔接被拉張環繞於管周圍。 本紙張尺度適用中國國家標準（CNS > Α4规格（210Χ：297公着） 6 ----------^.------1T------,ά r 考 (請先Μ讀背面之注意事項再填寫本頁) 425323 經濟部中央標隼局員工消費合作社印製 Α7 Β7 五、發明説明（4 ) 發明概述 本發明之第一方面提供一種如申請專利範圍第1項引 述之方法。 藉此方法待調整接觸管之長條緣面利用雷射束加熱， 該雷射東係定向成可加熱概略以緣區之中線為軸對稱區上 方的緣面。如此’中線為於緣面上且介於兩長條側面中間 的幾何線。如此*提供待熔接區之均勻加熱並降低功率需 求，因此此區無任何部分被加熱至過高溫度。緣面被加熱 至溶化溫度，亦即被加熱至可保持長條壓迫牴住管面經歷 適當時間而達成黏合所需的溫度。 熔合熔接可無需熔化或蒸發接觸面之任何部分執行。 如此，防止產生電漿’先前技術之雷射熔接方法常關聯電 漿，及關聯前述缺點》 熔化溫度必須足夠激發各表面，俾便其可接合黏合接 觸點。於鋼之例，表面係藉由加熱與加壓組合活化，因此 部分表面實際經煆燒或應變。煆燒或應變使脆性表面塗層 如氧化物裂開’因此曝露出金屬活性區。以鋼為例，有利 之溫度範圍由約700°c至約1550。(：。下限為沃思田鐵鋼形 成起點，該範圍之高端係以熔點標示。沃思田鐵鋼可經煆 燒°锻燒鋼所需壓力於該範圍下限以内之溫度範圍高，隨 著溫度的升高緩慢下降。發現表面溫約llOOt：可能衝擊熱 輸入與機械作功之功率輸入間之有利平衡β 本發明方法極為適合執行連續處理線，其中待加熱區 段沿長條及沿管面連續移動。該方法易配合多種尺寸之管 本紙張Hi财關家縣（CNS) A4%;fe (21Qx297公羞） --------------^------、玎------^ t- (請先W讀背面之注$項再填寫本頁) 425323 經濟部中央標準局員工消费合作杜印裝 A7 B7 五、發明説明（5 ) ’及配合翅片間具有不同節距之管，例如具有窄節距之有 翅片管難以藉先前技術之方法製造管表面加熱可藉類似 長條緣加熱方法進行，或可藉業界已知之任何其它方法進 行0 根據較佳具趙例，適合由長條接觸區之管面藉導引雷 射束至管面上被加熱至熔點》 較佳長條緣之加熱以及管面之加熱係利用雷射束導引 至間陈進行’於該間陈長條會合管，因此雷射束之熱功率 輸入分布於長條緣與管間。此種方法可使用同一熱源加熱 二部件進入熔接過程而簡化控制。微調長條與管間熱功率 輸入間之平衡可藉微調雷射束之瞄準目標相對於間隙，例 如使雷射束之轴線偏轉更接近需要較高比例熱功率之部件 之一。 雷射束瞄準間隙之優點為雷射能衝擊於表面之―，雷 射能不被圾收反而被反射，反射朝向間隙之相對腳表面， 而可能於該處被吸收發揮效果。間隙之幾何上，入射角於 各次反射時較為陡峭，因此反射時可能被吸收的能量比例 升高。如此，有效確保能量不會損失。 根據較佳具體例，雷射束適合照射一點，該點沿管轴 線伸展足夠長度而允許長條邊緣敗縮，原因為長條捲繞於 管上，同時仍然確保長條邊緣之適當區經妥善加熱。如此 使對正需求變容易，因而簡化管線的架設，且提供製程參 數穩定度增高之優點》 捲繞長條過程中，線性長條再度成形為環狀形狀需要 本紙張尺度適用中國國家標準（CNS ) A4思格（210X297公釐） -----,'—^---^— * _ (請先閲讀背面之注$項再填寫本頁) 、11 -線. 經濟部中央標準局員工消費合作社印製 425323 A7 B7 五、發明说明（6 ) 使長條之一緣延長，而相對緣縮短。尺寸改變可藉縱向拉 張周緣，縱向壓縮内緣，及橫向皺缩内緣配合。橫向切口 可於長條部分形成，俾便允許改變尺寸。長條皴縮可藉適 當導引而避免，亦即強迫變形成為長條而使其加工成為平 坦環形，但如此導引需要輸入能量於製程，因此熔接方法 令人感興趣其可配合此種長條内緣的皺縮。 使雷射束照射一點，該點比長條更寬可能損失若干能 量，但此種損失鑑於本發明達成之能量消耗之整體節省而 言為可接受。 根據較佳具體例’雷射束經由聚焦器件發射，聚焦器 件適合將雷射束會聚朝向焦點，而聚焦器件係設置於距管 轴線一段距離’該距離經選擇可補償雷射束衝擊區與焦點 之距離。如此模糊雷射束有效涵蓋區。雷射束之散焦可防 止產生任一點之雷射束功率表面密度極高而可能造成熔化 ，形成電漿及產生針孔。 熔合而未熔化可減少能量散逸至周圍且防止熔融浴引 起的某些困難，例如掃描溶接太過快速時動力學不穩定。 如此，使該方法適合用於極高熔接速率。 根據較佳具體例’長條係以足夠煆燒被接觸加熱區部 分變形之壓力壓迫牴住管面，如此脆性塗層如氧物破裂。 提供較高品質連績熔接，及其減少熔接前清潔組件表面的 需求β 根據較佳具體例，一段長條捲繞於管上，該段之終點 為於飛輪上剪切長條，同時持續旋轉管直到長條尾端接合 本紙張尺度逍用中困國家揉準（CNS ) A4規格（210X297公釐） 1 I ^1 Ί— n ^ I n n 1 n 線 β (請先W讀背面之注意事項再填寫本頁) 425323 A7 _____ B7 五、發明説明（7 ) 管為止。藉此方式，翅片段之尾端單純藉由連續熔接過程 溶接，而除了剪斷長條以外無需特別注意。 根據另一較佳具體例，有翅片管段之捲繞始於啟動雷 射搶，將長條前端前進而接觸管面，保持長條前端壓迫牴 住管經歷_段足夠使其於管形成接合的時間。如此，唯一 需要啟動長條段熔接之特殊注意點為前端前進至接觸且保 持壓迫牴住管。 本發明之第二方面提供一種如申請專利範团第14項定 義之熱交換器管。 提供一種有翅片管，其翅片妥為接合而製造過程不會 造成任何再結晶或管之過度加熱，因此不會使管之结構性 質劣化β此種熱交換器管適合藉極為有效之方法製造。 本發明之第三方面提供一種如申請專利範圍第18項引 述之裝置》 此種裝置可極為有效製造高品質有翅片之熱交換器管 β該裝置極為適合處理多種管，例如結合不同材料之有翅 片管，例如翅片材料與管材料不同之有翅片管。 經濟部中央標隼局貝工消费合作社印製 裝置之較佳具體例由申請專利範圍之裝置附屬項將更 顯然易明。 圖式之簡單說明 本發明之進一步特點及優點由後文參照附圖所作較佳 具體例之詳細說明將顯然易明，附圖令： 第1圖示例說明根據本發明之裝置之布局計畫， 第2圖以垂直管安裝於裝置之軸線之平面，示例說明 10 本紙張尺度適用中國國家標率（CNS > Α4規格（210X297公釐） 經濟部中央標準局員工消费合作社印装 42532 3 A7 B7 五、發明説明（8 ) 通過本發明裝置之部件之剖面圖， 第3圖示例說明沿雷射束軸之檢視方向檢視時第2圖之 細節圈， 第4圖示例說明根據本發明之熱交換器管之平面圖， 及 第5圖示例說明第1圖之細節放大圖。 較佳具體例之詳細說明 全部附囷皆為示意圊而非照比例燴製，且僅說明主要 部件俾便業界人士了解及實施本發明，其它部件為求清晰 起見由附圖中刪除。 各ffl中相同參考編號用來標示相同或類似物項》 首先參照第1圖說明本發明之裝置。第1圖為示例說明 基本布局之簡化平面圊。如此，第1圖示例說明一管2由圖 右方朝向左方透過管驅動機構13進給。管驅動機構利用一 組馬達傳動之摩擦輪或輥接合管。輥轴線略為傾斜，故管 係於轴向方向前進，同時以轴線為轴旋轉，故管面上一點 說明螺旋軌跡。此類型管驅動機構為業界已知。 第1圈之裝置整體標示以參考編號27,進而包含一金 屬長條配送器16,其包括一捲轴17附有進料金屬長條，一 導輥18用於導引長條及各個附件，如長條導件，於長條形 成部分橫向開槽之裝置（細齒），長條刀具，長條矯直器， 經控制的長條剎車，調整裝置，監控設備等.附件屬於業 界現況而未顯示於第1圖》 長條配送器之用途係使捲轴解捲而送出連續長度之長 本紙張尺度適用中囷固家樣準（匸奶）八4規格（210父297公釐） 11 -----—----^------------ (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標率局貝工消費合作社印製 425323 A7 ______B7__ 五、發明説明（9 ) 條4’以固定張力允許長條被送至管面上且接合至管面， 俾使長條配合管之運動提供螺旋翅片3。 於左方，第1圊代表性舉例說明管支架14,其提供一 轴承用於穩定管而保持管軸穩定。 第1圖進一步示例說明雷射槍20,其適合發射雷射線 之射束21概略瞄準長條會合管面該點。 現在參照第2圖示例說明長條會合管之情況。第2圖示 例說明剖面圖該平面係垂直管轴線定向，概略包括長條會 合管區。第2圖示例說明金屬長條4如何以線性方式由導輥 18(參照第1圖）延伸至接觸點25，此處金屬長條底緣5會合 管外側。於第2圖示例說明之配置中，金屬長條之直線部 分於水平方向延伸，及於最頂點會合管面。長條與管會合 區稱作間陈8 ^ 金屬長條之特徵為扁平帶具有概略矩形剖面.長條係 於概略垂直取向進給至管，俾便使長條接觸管之下緣面5 。金屬長條通過長條導件19，長條導件接合金屬長條邊7 。於上緣於毗鄰間隙8位置，金屬長條藉加壓輥15接合， 該輥壓迫長條牴住管》 管旋轉之作動組合加壓輥、長條導件及長條拉張之作 用’強迫長條變形而呈周邊關係俾便使長條呈螺旋樣式， 其中長條概略係於徑向取向於周邊伸展而提供翅片3。 雷射搶20發射雷射東21，雷射束瞄準間隙8，與管成 切線方向且來自偏離長條底緣夾小角度v之方向（參考第2 圖）。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公嫠） ----------I------ίτ------ (請先閲讀背面之注意事項再填寫本頁) 425323 Α7 Β7 五、發明説明（10 現在參照第3圊，其示例說明同一區之管及長條，第3 圖示例說明沿雷射軸方向所見視圈。第3闽概略示例說明 以垂直雷射束軸線之平面於毗鄰間隙8位置所取之雷射束 之剖面圖。第3圖示例說明翅片底緣5及翅片邊7» 長條二緣間之幾何線中點稱作緣中點6。雷射束剖面 界定一圓形點22,其覆蓋部分長條底緣及部分管外側。長 條及管之受雷射束影審區域分別稱作緣加熱區23及管加熱 區24。緣加熱區23概略環繞長條緣面之中點6對稱。 雷射搶配備有瞄準調整裝置（圖中未顯示），其適合使 雷射束準確瞄準間隙，或可能瞄準偏離選定點之某個其它 現在參照第5圚說明有關配置之若干幾何特點。第5圊 订 基本上示例說明第1圈之部件之放大尺寸，俾便清晰了解 |4 253 2 3 Printed by the Shell Specimen Consumer Cooperative of the Central Bureau of Procurement, Ministry of Economic Affairs A7 B7 V. Description of the Invention (1) The present invention relates to a method for manufacturing a heat exchanger tube with external spiral fins. The invention further relates to a heat exchanger tube having external spiral fins and a device for manufacturing a heat exchanger tube. Generally, a heat exchanger tube includes a tube fitted with fins or ribs, which provides the advantage of an increased active area for heat exchange, and also provides a guide for external cross-flow of the fluid for heat exchange. The fins exchange heat with the external medium, and the fins transfer heat to the tube through the contact between the fins and the tube surface. The invention relates to a tube with external fins, which comprises a fixed strip material applied in a spiral pattern around the tube, wherein the strip contacts one edge of the tube, and therefore extends in a roughly annular and radial configuration, and the strip system "Fixing firmly to the pipe surface by welding" Welding is used for structural attachment of fins, and to promote heat transfer from fins to tubes, and vice versa. The structural attachment of the fins need only be partially bonded, but for best heat transfer results, full length fins may need to be welded. Cases where heat exchangers accept high external temperatures and high heat transfer rates specifically require optimal heat transfer. For applications where the temperature outside the tube exceeds the temperature inside the tube, the fins receive a higher temperature than the tube during operation, so the thermal expansion may be greater than that of the tube. In this way, the high ambient temperature tends to loosen the fins from the tube surface, resulting in openings. The openings cross the intended heat transfer path, which may cause adhesive fracture. European Patent Application No. 0 303 074 A2 describes a method of manufacturing a heat exchanger tube having a spirally fused metal. In this way, the exposed tube section is placed on a lathe and rotated ’while the metal strip is distributed by a strip dispenser that is offset in the axial direction of the tube, so the strip is wound around the tube in a spiral pattern. The fins and tubes are heated by a laser beam. The laser system is based on the paper size of the tube and the Chinese national standard (CNS) A4 (210X297mm) 4 gutter · (Please read the precautions on the back before filling this page) 4253 2 3 Central Ministry of Economic Affairs Printed by the Standard Bureau Shellfish Consumer Cooperative A7 B7 V. Description of the invention (2) The angled fins are guided in the acute angle direction, and the fin fitting areas on the tube. The laser beam dissolves the tube surface 'and the laser beam forming channel passes through the strip in the lateral direction near the edge, so that the edge of the strip is melted. The laser beam is also reflected on the tube surface, thus additionally heating the long edges. The inventors found that the solid metal surface tends to reflect a large proportion of the laser beam ' impinging thereon, so that most of the energy is effectively removed. On the other hand, the part of the molten metal bed that reflects a small portion of the laser east reflects less reflected plasma plasma. This' explains why the fusion of laser beams is generally considered to require extremely concentrated laser beams to succeed. Less concentrated laser beams are usually unable to heat materials such as steel to a temperature sufficient to begin splicing. The laser beam heating effect must occur on the surface. The laser east irradiation intensity required for melting the surface portion is high ', but once it has started to melt, the energy absorption rate starts to increase. Taking a concentrated laser beam as an example, it is usually increased to a point where the molten metal bed part is vaporized and a plasma is generated. The molten metal bed and plasma heat the surrounding area and melt the surrounding area. However, this method is very likely to form pinholes or channels in the sample along the direction of the laser beam. The vaporized metal plasma absorbs and scatters the laser beam energy ' as a result, heats the surrounding environment and surrounding equipment, and interferes with the rate of heat input to the weld. A device in which a long strip uses a laser beam to collide with the side of the strip and dazzle at the edges. The only way to achieve fusion across the strip body is to form a laser beam into a slot or pinhole, which extends all the way through the strip, and along the length. The laser beam is scanned slowly across the length of the bar to melt the edges. The unequal absorption of the medium and the tendency of the laser beam to form pinholes make the process difficult to control. The difficulty is that it may lead to welding burrs, and the paper size of the fins is not in accordance with the Chinese National Standard (CNS) 8-4 specification (2 丨 〇 < 297 mm) --------- ^- ----- 1Τ ------ 0 r '(Please read the note on the back before filling in this page) Printed by the Shellfish Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 4 2532 3, A7 B7 V. Invention Note (3) The points were burned, the wings and tubes were thermally decomposed, and the tubes formed pinhole holes. The generated plasma dissipates a large amount of heat to the surrounding parts of the tube and the surrounding parts of the manufacturing equipment. U.S. Patent A-5 343 015 describes a method of manufacturing heat exchanger tubes fitted with spiral fins. The fins are wound around the tube and fixed firmly by high-frequency welding. The high-frequency electrical energy is applied using a pair of electrodes, one of which contacts the tube, and the other electrode contacts the fin at the point where the fin contacts the tube. This published document suggests using a laser beam to preheat the tube surface, thus supplementing the induction heat to the tube by high-frequency current flow. This prior art method requires proper balancing and control of two methods of providing heat input, and the inherent characteristics of both methods are complex. High-frequency current input requires moving the electrode to contact the strip and the tube. The β strip at the end of the strip cannot be effectively adhered. It tends to receive excessive heat and tends to overly melt the surface. The process of inputting additional heat using a laser beam is complicated because the absorption factors of the tube surface are complicated as described above. In addition, the surface area of the tube heated by the laser beam must accurately match the long trajectory to be wound on the tube, which further increases the complexity of geometric alignment. Practical experiments using this method have shown that considerable heat input to the components is required, and much energy is lost to the surrounding environment, resulting in low overall energy efficiency. Excessive heating of the tube may cause recrystallization, resulting in poor tube structure. British Patent Specification No. 1 359 149 describes a method for replacing a Is tube with a hot fin using a spiral fin. By this method, a tube section is erected on a lathe and rotated, and at the same time, a long strip is distributed along the axial direction of the tube section by a long dispenser. Position distribution, thus winding the fins. The ends of the fins are joined by gas welding. The middle fin segment is not welded, but is only stretched around the tube by welding at the end. This paper size applies the Chinese national standard (CNS > Α4 specification (210 ×: 297)) 6 ---------- ^ .------ 1T ------, ά r 考(Please read the notes on the back before filling in this page) 425323 Printed by the Consumers' Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs A7 B7 V. Description of the invention (4) Summary of the invention The first aspect of the present invention provides The method cited in item 1. In this method, the long edge surface of the contact tube to be adjusted is heated by a laser beam, and the eastern laser system is oriented to heat the edge surface above the axisymmetric area with the center line of the edge area. 'The centerline is a geometric line on the edge surface and between the two long sides. In this way * it provides uniform heating of the area to be welded and reduces power requirements, so no part of this area is heated to excessive temperatures. The edge surface is Heating to the melting temperature, that is, to the temperature required to maintain the long pressure to hold the tube surface for a proper time to achieve the bonding. Fusion welding can be performed without melting or evaporating any part of the contact surface. In this way, the generation of plasma is prevented 'Prior art laser welding methods are often associated with electricity Paste and related disadvantages above> The melting temperature must be sufficient to excite each surface so that it can join the adhesive contact points. In the case of steel, the surface is activated by a combination of heating and pressure, so part of the surface is actually burned or strained. Burning or strain causes brittle surface coatings such as oxides to crack, thus exposing the metal active area. Taking steel as an example, the favorable temperature range is from about 700 ° c to about 1550. (:. The lower limit is the starting point of the Wostfield iron steel formation The high end of the range is indicated by the melting point. The temperature range of the pressure required for sintering ° Wo Tiangang steel to be within the lower limit of the range is high, and it slowly decreases with the increase in temperature. It is found that the surface temperature is about 1100 T: Favorable balance between shock heat input and power input for mechanical work β The method of the present invention is very suitable for performing continuous processing lines, in which the section to be heated moves continuously along the strip and along the tube surface. This method is easy to match with tube paper of various sizes Hi Caiguanjia County (CNS) A4%; fe (21Qx297 public shame) -------------- ^ ------, 玎 ------ ^ t- ( (Please read the note on the back before completing this page) 425323 Central Standard of the Ministry of Economic Affairs Bureau ’s consumer cooperation Du Yinzhuang A7 B7 V. Description of the invention (5) 'and matching tubes with different pitches between fins, such as finned tubes with narrow pitches, it is difficult to manufacture the surface of the tube by the method of the prior art. By a similar method of strip edge heating, or by any other method known in the industry. 0 According to a preferred example, it is suitable to guide the laser beam from the tube surface of the strip contact area to the tube surface to be heated to the melting point. 》 The better heating of the strip edge and the heating of the tube surface are conducted by laser beams to the space between the strips. The heat input of the laser beam is distributed between the strips and the tube. This method can use the same heat source to heat the two parts into the welding process and simplify the control. Fine-tuning the balance between the bar and the thermal power input between the tubes can be achieved by fine-tuning the aiming target of the laser beam relative to the gap, for example, to deflect the axis of the laser beam closer to one of the components that requires a higher proportion of thermal power. The advantage of the laser beam aiming at the gap is that the laser energy hits the surface. The laser energy is not reflected by the garbage, but is reflected. The reflection is directed to the opposite foot surface of the gap, and it may be absorbed there to exert its effect. The geometry of the gap is that the angle of incidence is steep at each reflection, so the proportion of energy that may be absorbed during reflection increases. In this way, it is effectively ensured that energy is not lost. According to a preferred specific example, the laser beam is suitable to illuminate a point that extends long enough along the axis of the tube to allow the edge of the strip to shrink, because the strip is wound around the tube, while still ensuring the proper area of the edge of the strip. Properly heat. This eases the need for alignment, thus simplifies the erection of pipelines, and provides the advantages of increased process parameter stability. "During the winding of the strip, the linear strip is reshaped into a ring shape. This paper size is subject to Chinese national standards (CNS ) A4 Sige (210X297mm) -----, '— ^ --- ^ — * _ (Please read the note on the back before filling in this page), 11-line. Staff of the Central Standards Bureau of the Ministry of Economic Affairs Printed by the Consumer Cooperative 425323 A7 B7 V. Description of the invention (6) One edge of the strip is extended, while the relative edge is shortened. The size can be adjusted by longitudinally stretching the periphery, longitudinally compressing the inner edge, and transversely shrinking the inner edge. Lateral cuts can be made in the long section, allowing the size to be changed. The curling of the strip can be avoided by proper guidance, that is, forced deformation into a strip and its processing into a flat ring, but this guidance requires input of energy to the process, so the welding method is interesting. It can be matched with this length. The inner edges of the strips shrink. Irradiating the laser beam a little, which is wider than the strip, may lose some energy, but such a loss is acceptable in view of the overall savings in energy consumption achieved by the present invention. According to a preferred specific example, 'the laser beam is emitted through a focusing device, the focusing device is suitable for converging the laser beam toward the focus, and the focusing device is arranged at a distance from the tube axis', and this distance is selected to compensate the laser beam impact area and Focus distance. The effective coverage area of such a blurred laser beam. The defocusing of the laser beam can prevent the laser beam power at any point from generating a very high surface density which may cause melting, plasma formation and pinholes. Fusion without melting can reduce the dissipation of energy to the surroundings and prevent certain difficulties caused by the melting bath, such as unstable kinetics when scanning for welding is too fast. This makes the method suitable for very high welding rates. According to a preferred embodiment, the strip is pressed against the surface of the tube with a pressure sufficient to scorch the part deformed by contact with the heating zone, so that the brittle coating such as oxygen is broken. Provide high-quality continuous welding and reduce the need to clean the surface of the component before welding. According to a better specific example, a long strip is wound on the tube, and the end of this segment is to cut the long strip on the flywheel while continuing to rotate. Tube until the end of the long bar is connected to the paper standard (CNS) A4 size (210X297 mm) 1 I ^ 1 Ί— n ^ I nn 1 n Line β (Please read the precautions on the back first (Fill in this page again) 425323 A7 _____ B7 V. Description of Invention (7). In this way, the tail ends of the fin segments are simply welded by a continuous welding process, and no special attention is required except for cutting the strip. According to another preferred specific example, the winding of the finned tube segment starts with the start of laser grabbing, advancing the front end of the strip and contacting the surface of the tube, and keeping the front end of the strip pressed to hold the tube and the segment is sufficient to form a joint with the tube. time. In this way, the only special point of attention needed to start the welding of the long section is that the front end advances to contact and keeps pressing the tube. A second aspect of the present invention provides a heat exchanger tube as defined in item 14 of the patent application group. A finned tube is provided. The fins are properly joined and the manufacturing process does not cause any recrystallization or excessive heating of the tube, so the structural properties of the tube are not deteriorated. This heat exchanger tube is suitable for an extremely effective method. Manufacturing. The third aspect of the present invention provides a device such as the one cited in item 18 of the scope of the patent application. Such a device can be extremely effective in manufacturing high-quality finned heat exchanger tubes. The device is very suitable for processing a variety of tubes, such as combining different materials. Finned tube, for example, a finned tube in which the finned material is different from the tube material. The preferred specific examples of the devices printed by the Shellfish Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs will be more obvious from the subordinate items of the patent application scope. Brief Description of the Drawings Further features and advantages of the present invention will be apparent from the detailed description of the preferred specific examples made below with reference to the drawings. The drawings make: Figure 1 illustrates the layout of a device according to the present invention. Figure 2 shows a vertical tube installed on the plane of the axis of the device. The example illustrates that 10 paper sizes are applicable to China's national standard (CNS > A4 size (210X297 mm). Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs. 42532 3 A7 B7 V. Description of the invention (8) Through the sectional view of the components of the device of the present invention, FIG. 3 illustrates the detail circle of FIG. 2 when viewed along the viewing direction of the laser beam axis, and FIG. 4 illustrates the details according to the present invention. The plan view of the heat exchanger tube, and Figure 5 illustrates the details of Figure 1. The detailed description of the preferred specific examples is all schematic, not schematic, and only the main components are described. Those skilled in the art can understand and implement the present invention, and other components have been deleted from the drawings for clarity. The same reference numbers in each ffl are used to indicate the same or similar items. First, the present invention will be described with reference to FIG. 1. Fig. 1 is a simplified plane for illustrating the basic layout. Thus, Fig. 1 illustrates a tube 2 feeding from the right to the left through the tube driving mechanism 13. The tube driving mechanism is driven by a set of motors The friction wheel or roller joins the tube. The roller axis is slightly inclined, so the tube is advanced in the axial direction, and at the same time it is rotated with the axis as the axis, so one point on the tube surface describes the spiral trajectory. This type of tube driving mechanism is known in the industry. The device of the first circle is marked with reference number 27 as a whole, and further includes a metal strip dispenser 16, which includes a reel 17 with a feeding metal strip, a guide roller 18 for guiding the strip and various accessories, Such as strip guides, devices (fine teeth) for slotting laterally in the strips, strip cutters, strip straighteners, controlled strip brakes, adjustment devices, monitoring equipment, etc. The accessories belong to the current state of the industry. Not shown in Figure 1. The purpose of the strip dispenser is to unroll the scroll and send out a continuous length of paper. The size of the paper is suitable for the standard of the family (milk) 8 4 specifications (210 mm 297 mm) 11 -----—---- ^ ------------ (Please read first Please fill in this page before filling in this page) Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperative, 425323 A7 ______B7__ V. Description of the invention (9) Article 4 'allows the strip to be sent to the pipe surface and joined to the pipe with a fixed tension. On the left, the spiral tube 3 is provided to match the movement of the elongated tube. On the left, the first tube representatively illustrates the tube holder 14, which provides a bearing for stabilizing the tube while keeping the tube shaft stable. Figure 1 further illustrates The laser gun 20, which is suitable for emitting a beam 21 of laser rays, is roughly aimed at the point of the long converging pipe. Now, the situation of the long converging pipe will be described with reference to the example in FIG. The system is oriented perpendicular to the axis of the pipe and roughly includes a long confluent pipe area. Fig. 2 illustrates how the metal strip 4 extends linearly from the guide roller 18 (see Fig. 1) to the contact point 25, where the bottom edge 5 of the metal strip meets the outside of the tube. In the configuration illustrated in Figure 2, the straight part of the metal strip extends in the horizontal direction and meets the pipe surface at the highest point. The area where the strip meets the tube is called the tan 8 ^ The metal strip is characterized by a flat strip with a roughly rectangular cross-section. The strip is fed to the tube in a roughly vertical orientation, and the strip is brought into contact with the lower edge of the tube 5. The metal strip passes through the strip guide 19 which engages the metal strip side 7. At the upper edge adjacent to the gap 8 position, the metal strips are joined by the pressure roller 15 which presses the strip to hold the tube. The action of the tube rotation combines the pressure roller, the strip guide and the strip tension. The strips are deformed to have a peripheral relationship, so that the strips have a spiral pattern, wherein the strips are roughly oriented in the radial direction and extend around the periphery to provide the fins 3. The laser grab 20 launches the laser east 21, and the laser beam is aimed at the gap 8, tangent to the tube and from a direction that is offset by a small angle v from the bottom edge of the long strip (refer to Figure 2). This paper size applies to China National Standard (CNS) A4 specification (210X297 cm) ---------- I ------ ίτ ------ (Please read the precautions on the back before (Fill in this page) 425323 Α7 Β7 V. Description of the invention (10 Now refer to Section 3, which illustrates the tube and strip in the same area. Explain the cross-sectional view of the laser beam taken on the plane perpendicular to the axis of the laser beam at the position adjacent to the gap 8. Figure 3 illustrates the geometric line between the fin bottom edge 5 and the fin edge 7 » The point is called the edge midpoint 6. The laser beam profile defines a circular point 22, which covers part of the long bottom edge and part of the outer side of the tube. The laser beam shadowing areas of the long and tube are called edge heating areas 23, respectively. And the tube heating zone 24. The edge heating zone 23 is roughly symmetrical around the midpoint 6 of the long edge surface. The laser grab is equipped with a sighting adjustment device (not shown), which is suitable for the laser beam to accurately aim at the gap, or may aim Some other deviation from the selected point will now be explained with reference to section 5 on some geometric features of the configuration. Section 5 is basically an example 1 laps enlarge the size of the components, they serve a clear understanding |
有關雷射搶瞄準之某些方面。 I 如此，第5圈示例說明長條如何於矯直腳由導輥丨8伸 i 展至接觸點25,該接觸點相對於管軸線呈斜向方向。長條 線 經濟部中央標準局貝工消費合作社印製 IH ^1— I I (請先W讀背面之注意事項再填寫本頁} 方向經選擇而匹配螺旋長條節距，該節距係由管驅動機構 13控制（參照第1圖）β此角度依據節距而定，例如與垂直 管轴線平面夾角5度角。 —| 雷射搶20產生雷射束聚焦於焦點26。如此，雷射束可 | 視為一束雷射射線，由雷射搶孔口Α之多點發射而全部瞄 準焦點26。 i 根據本發明’雷射搶之瞄準方式可使雷射束導引朝向 | 間隙，但雷射搶與間隙之間隔距離適合確保雷射束相對於 丨 13 本紙張尺度適用中國國家標準（CNS ) Μ規格（210X297公着） 425323 經濟部中央橾準局貝工消費合作社印装 Α7 Β7 五、發明説明（11 ) 需要加熱效果該區蓄意散焦。第5示例說明之較佳具體例 中，間隙可有效消除焦點。結果為雷射束影響具有有限橫 向尺寸之一點，同時雷射束能量極端集中區可避免位於感 興趣之領域範圍内。 雷射束21之概略轴線偏離金屬長條介質方向之角度足 夠防止會聚之雷射束射線撞擊金屬長條之點過分遠離間隙 而無法發揮有效用途。導輥18準確控制長條之矯直腳，允 許長條配送其清除雷射搶而有助於裝置的設計》 雷射束點之橫向尺寸可藉由適當設計雷射搶及藉由根 據幾何考慮改變雷射束與間隙之間隔而適當配合，此點對 業界人士顯然易知。 較佳具體例包含雷射搶具有孔口直徑50毫米及焦點長 度400毫米。雷射束射線瞄準焦點係於距射束轴線±3.5。之 方向範圍内。束軸線經調整而偏離長條矯直腳方向約4。 。此種情況下，安排雷射搶瞄準間隙，而焦點之補償值為 超過間隙28毫米，可確保雷射點直徑約3.5毫米，粗略相 當於10平方毫米（稱作射束軸線之垂直平面）。 試驗回合中’使用二氧化碳雷射槍，輸出波長10.6微 米及束功率10千瓦之雷射束。該點之東密度估計為1千瓦/ 平方毫米。預期低於鋼溶化或形成電漿之補償點。實驗發 現此種功率密度極為適合藉本發明方法熔接" 如此提供快速製程之最佳條件，獲得絕佳終產物，其 中组件上任何熱誘生之劣化影饗皆保持為絕對最低值。 如此使用截面為16X1毫米之鋼金屬長條，可以每分 本紙張尺度適用中國囷家揉率（CNS)A4規格（210X2?7公釐> 14 ! I I^— I I — —1T— nn] ^ (請先閲讀背面之注項再填寫本頁) 425323 Α7 Β7 經濟部中央標準局貞工消費合作社印製 五、發明説明（12 ) 鐘115米速度作出長條熔接。表面估計加熱至i100"c溫度 。加壓輥施加90 kp力於長條上。終產物樣本藉適當方法 檢查，顯示即使如此高速，終產物實際上優於先前技術方 法所能獲得的產物。 現在參照第4圖說明熱交換器管。第4圖示例說明熱交 換器管1 ’包含一有翅片段11係由裸露管段12劃界。如此 翅片包含有限長度之長條，其末端依製造順序分別稱作前 端9及後端10。 為了製造此管段，金屬長條前端前進至接觸管内。前 端前進距離相當遠，因而於加壓親15下方接合。於此階段 ，開啟雷射搶但採用較低功率，及啟動管驅動機構13"管 及加壓輥即刻被拉向長條前端.管驅動機構速度以及雷射 功率係以適當協調樣式傾斜向上，於極短的前端之後即獲 得高品質熔接。該製程容易控制，故即使於管驅動機構速 度以及雷射搶功率傾斜向上期間高品質熔接仍可達到均勻 結果。 一旦適當管段設置翅片，金屬長條係於導輥18與間隙 8間之腳橫向剪切·剪切較佳利用剪切器件進行，該剪切 器件適合於剪切期間隨同金屬長條向前移動。一旦完成切 割’即刻停止捲軸17，而長條尾端單純繼續前進，加壓輥 15提供適當導引而確保尾端也黏著。即使於全速製程也可 達到尾端之適當黏合》 雖然前文已經說明特定具體例，但須強調本發明可以 多種方式實施，前文說明絕對僅用於澄清本發明而絕非意 — ----^-— (請先閎讀背面之注f項再填寫本頁) 訂 線 本紙張尺度逋用中固國家樣準（CNS ) A4規格（210X297公釐） 15 42532 3 A7 B7 五、發明説明（Π ) 圖限制保護範圍，保護範圍係由隨附之申請專利範圍界定 元件標號對照 經濟部中央標準局員工消费合作社印製 1…熱交換器管 15…加壓輥 2…管 16…金屬長條配送器 3···螺旋翅片 17…捲柏 4…長條 18…導輥 5…底緣 19…長條導件 6…緣中點 20…雷射搶 7…邊 21…雷射束 8…間隙 22…圓形點 9…前端 23…緣加熱區 10…尾端 24…管加熱區 11…有翅片段 25…接觸點 12…裸露管段 26…焦點 13…管驅動機構 27…裝置 14…管支架 (請先闆讀背面之注意事項再填寫本頁) 16 本紙張尺度適用中圉國家標準（CNS ) ( 2丨0X2?7公釐）Some aspects of laser aiming. I so, the fifth circle example shows how the strip stretches from the guide roller 丨 8 to the contact point 25 at the straightening foot, and the contact point is oblique to the tube axis. Printed by the Central Standard Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperative, IH ^ 1—II (Please read the notes on the back before filling this page} The direction is selected to match the spiral strip pitch, which is managed by the tube The driving mechanism 13 controls (refer to FIG. 1) β. This angle depends on the pitch, for example, an angle of 5 degrees from the plane of the vertical tube axis. — | The laser beam 20 generates the laser beam to focus on the focal point 26. Thus, the laser The beam can be regarded as a beam of laser rays, which are emitted from the multiple points of the laser grabbing aperture A and are all aimed at the focus 26. i According to the 'laser grabbing aiming method of the present invention, the laser beam can be guided toward the gap | However, the distance between the laser grab and the gap is suitable to ensure that the laser beam is relative to the paper size. 13 This paper size applies to the Chinese National Standard (CNS) M specification (210X297). 425323 Printed by the Central Laboratories Bureau of the Ministry of Economic Affairs. V. Description of the invention (11) The heating effect is required. The area is deliberately defocused. In the preferred specific example described in the fifth example, the gap can effectively eliminate the focus. The result is that the laser beam has a limited lateral dimension and the laser beam is at the same time Energy extreme set The center zone can be avoided from being located in the area of interest. The angle of the rough axis of the laser beam 21 deviating from the direction of the metal strip medium is sufficient to prevent the point where the converging laser beam rays hit the metal strip is too far away from the gap and cannot be used effectively. The guide roller 18 accurately controls the straightening legs of the strip, allowing the strip to distribute it to clear the laser grab and help the design of the device. "The lateral size of the laser beam spot can be designed by appropriate laser grab and Considering the proper cooperation between changing the distance between the laser beam and the gap, this point is obviously easy to understand for the industry. Preferred specific examples include laser grabbing with an aperture diameter of 50 mm and a focal length of 400 mm. The laser beam is aimed at the focal point at Within the range of ± 3.5 from the beam axis. The beam axis is adjusted to deviate from the direction of the long straight feet by about 4. In this case, the laser is arranged to grab the gap, and the focus compensation value exceeds the gap 28 Millimeters, to ensure that the laser spot diameter is about 3.5 millimeters, roughly equivalent to 10 square millimeters (called the vertical plane of the beam axis). In the test round, 'using a carbon dioxide laser gun, the output wavelength A laser beam of 10.6 microns and a beam power of 10 kW. The east density of this point is estimated to be 1 kW / mm2. It is expected to be lower than the compensation point for steel melting or plasma formation. Experiments have found that this power density is very suitable for the method of the invention Welding " This provides the best conditions for a fast process and obtains an excellent end product, where any thermally induced degradation effects on the components are kept to an absolute minimum. In this way, a steel metal strip with a cross section of 16X1 mm can be used The paper size is applicable to China's household kneading rate (CNS) A4 specification (210X2 ~ 7mm > 14! II ^ — II — —1T— nn] ^ (Please read the note on the back before filling this page) 425323 Α7 Β7 Printed by Zhengong Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (12) The strip is welded at a speed of 115 meters. The surface is estimated to be heated to i100 " c temperature. The pressure roller applied a force of 90 kp to the strip. Examination of the end product samples by appropriate methods shows that even at such high speeds, the end products are actually superior to those obtainable by prior art methods. The heat exchanger tube will now be described with reference to FIG. 4. Figure 4 illustrates that the heat exchanger tube 1 'contains a finned section 11 delimited by a bare tube section 12. In this way, the fins include strips of limited length, the ends of which are called the front end 9 and the rear end 10, respectively, in the order of manufacture. To make this pipe section, the front end of the metal strip is advanced into the contact pipe. The forward end travels quite far, so it engages below the pressurized pro 15. At this stage, the laser grab is turned on but with a lower power, and the tube driving mechanism 13 " tube and pressure roller are immediately pulled towards the front of the long strip. The speed of the tube driving mechanism and the laser power are tilted upwards in an appropriate coordination pattern. High-quality welding is achieved after the extremely short front end. This process is easy to control, so high-quality welding can still achieve uniform results even when the speed of the tube drive mechanism and the laser grab power are tilted upward. Once the fins are set in the proper pipe section, the metal strip is tied to the foot between the guide roller 18 and the gap 8. Lateral cutting and shearing is preferably performed using a shearing device, which is suitable for cutting along with the metal strip during the cutting mobile. Once the cutting is completed, the reel 17 is stopped immediately, and the long tail end simply continues to advance, and the pressure roller 15 provides proper guidance to ensure that the tail end is also stuck. Appropriate adhesion at the end can be achieved even at full speed. "Although the specific examples have been described above, it must be emphasized that the present invention can be implemented in various ways. The foregoing description is definitely only used to clarify the invention and is by no means intended ------ ^ -— (Please read the note f on the back before filling this page) The paper size of the booklet is based on the China Solid State Standard (CNS) A4 specification (210X297 mm) 15 42532 3 A7 B7 V. Description of the invention (Π ) Figure limits the scope of protection. The scope of protection is determined by the accompanying patent application. The components are printed with reference to the employees ’cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs. 1 ... heat exchanger tube 15 ... pressure roller 2 ... tube 16 ... metal strip distribution Device 3 ... Spiral fins 17 ... Selaginella 4 ... Strip 18 ... Guide roller 5 ... Bottom edge 19 ... Strip guide 6 ... Edge midpoint 20 ... Laser grab 7 ... Edge 21 ... Laser beam 8 ... Gap 22 ... Circular point 9 ... Front end 23 ... Edge heating zone 10 ... Tail end 24 ... Pipe heating zone 11 ... Finger segment 25 ... Contact point 12 ... Bare tube section 26 ... Focus 13 ... Pipe drive mechanism 27 ... Device 14 ... Pipe Bracket (please read the precautions on the back before filling in this Page) 16 This paper is applicable to China National Standard (CNS) (2 丨 0X2? 7mm)