WO2018035895A1 - 一种用于热交换器的翅片和扁管总成的制造方法 - Google Patents
一种用于热交换器的翅片和扁管总成的制造方法 Download PDFInfo
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- WO2018035895A1 WO2018035895A1 PCT/CN2016/098671 CN2016098671W WO2018035895A1 WO 2018035895 A1 WO2018035895 A1 WO 2018035895A1 CN 2016098671 W CN2016098671 W CN 2016098671W WO 2018035895 A1 WO2018035895 A1 WO 2018035895A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
- B21D13/04—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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- the present invention relates to the field of heat exchanger equipment, and more particularly to a method of manufacturing a fin and flat tube assembly for a heat exchanger.
- the fins used in the heat exchanger are aluminum foil materials, the thickness of which is thin, and the fin strength after molding is low. Moreover, after the fin is inserted into the heat dissipation flat tube, there is not enough space to apply the flux to adhere to the surface of the aluminum foil material, so that the welding of the fin and the heat dissipation flat tube is poor during welding.
- split fins are used to ensure the strength thereof, the ends of the fins are easily deformed and blocked, and the shape of the fins originally formed is destroyed.
- an object of the present invention is to provide a method for manufacturing a fin and a flat tube assembly for a heat exchanger, which can realize various fin manufacturing requirements and materials after forming different fins.
- the sheet has high strength and simple production process.
- the invention discloses a method for manufacturing a fin for a heat exchanger, comprising the following steps:
- Step 1 Take a metal substrate and straighten it, roll the middle of the metal substrate and form a pair First wavy protrusion;
- Step 2 respectively rolling the two ends of the metal substrate to a portion between the first undulating protrusions, and forming a pair of second undulating protrusions;
- Step 3 Rolling the first undulations and the second undulations to make the first wave undulations and the second undulations have the same wave pitch and amplitude to form wavy fins;
- Step 4 Rolling each peak portion and trough portion of the corrugated fin, and forming the peak portion and the trough portion into a rounded rectangular shape;
- Step 5 Rolling the portions of each of the peaks and troughs so that the peak portion and the trough portion are respectively formed inward.
- the first undulating protrusion comprises four sets of protruding units, which are symmetrically formed with respect to the symmetry axis of the metal substrate.
- the second undulating protrusion comprises four sets of protruding units, which are symmetrically formed with respect to the symmetry axis of the metal substrate.
- the height of the second undulations is smaller than the height of the first undulations.
- the step 3 includes:
- Step 3-1 Rolling the second undulations to make the pitch and amplitude of the first undulations and the second undulations coincide;
- Step 3-2 laterally compressing the wave fins to increase the amplitude of the wave fins and shorten the wave pitch.
- the step 4 includes:
- Step 4-1 pre-forming the peak portion and the trough portion in an arc shape
- Step 4-2 Further rolling the peak portion and the trough portion into a rounded rectangular shape.
- the step 5 includes:
- Step 5-1 reversely rolling the peak portion and the trough portion, so that the peak portion and the trough portion are preformed with a first rounded corner;
- Step 5-2 shaping the first rounded corner to form a second rounded corner.
- the depth of the first rounded corner is 1/2 of the second fillet depth.
- the invention also discloses a method for manufacturing a flat tube assembly for a heat exchanger, comprising the following steps:
- Step 1 Perform the above-described method of manufacturing the fin to form a fin for the heat exchanger
- Step 2 conveying the fins to a gear shaping passage by a conveyor belt, and applying the flux to the fins;
- Step 3 insert the fin into a flat tube
- Step 4 Pass the flat tube through a brazing furnace to form the flat tube assembly.
- the production process has high production efficiency and wide application range
- the fins are integrally formed and have high strength.
- FIG. 1 is a schematic view showing a molding process in accordance with step 1 of the manufacturing method in a preferred embodiment of the present invention
- FIG. 2 is a schematic view showing a molding process in accordance with step 2 of the manufacturing method in a preferred embodiment of the present invention
- FIG. 3 is a schematic view showing a molding process in accordance with step 3 of the manufacturing method in a preferred embodiment of the present invention
- FIG. 4 is a schematic view showing a molding process in accordance with step 4 of the manufacturing method in a preferred embodiment of the present invention
- Figure 5 is a schematic view showing a molding process in accordance with step 5 of the manufacturing method in a preferred embodiment of the present invention
- Figure 6 is a schematic view showing the structure of a fin after molding in accordance with a preferred embodiment of the present invention.
- Figure 7a is a side elevational view of a fin formed in accordance with a preferred embodiment of the present invention.
- Figure 7b is an enlarged schematic view of a portion A of Figure 7a.
- the user obtains the metal substrate 10 as a basis for manufacturing a flat tube.
- the metal substrate 10 may be an aluminum foil, a metal strip (composite layer), etc., first straightened to meet the final The surface of the formed fin is continuous without protrusions or pits. Then, the metal substrate 10 is placed in a mold, and the middle portion of the metal substrate 10 is rolled, and the rolled metal substrate 10 is formed with a pair of first wavy protrusions 11.
- the central portion of the metal substrate 10 is repeatedly rolled on the both end faces of the metal substrate 10 to form, for example, four sets of protrusion units each of which includes two troughs and one crest, and is connected to each other at the trough position.
- the four sets of protrusion units are symmetric with respect to the axis of symmetry of the metal substrate 10, that is, two sets of protrusion units are respectively rolled on both sides of the symmetry axis of the metal substrate 10, and the symmetry axis is located at the trough of one protrusion unit, both sides
- the protruding unit is axisymmetric or centrally symmetric (not shown).
- Step 2 As shown in FIG. 2, a portion where the upper portion of the metal substrate 10 is not rolled is still rolled, and this portion is also between the both ends of the metal substrate 10 to the first undulations 11 part. After rolling, the portion is formed into a pair of second undulations 12, that is, on both sides of the first undulations 11, respectively, up to the both ends of the metal substrate 10.
- the amplitude of the second undulations 12 may be smaller than the height of the first undulations 11, that is, the second undulations 12 are preformed. .
- four sets of protrusion units can be preformed in the same manner, symmetrically with respect to the axis of symmetry of the metal substrate 10, and two sets of protrusion units are respectively provided on both sides of the first wave-like protrusions 11, and the entire metal substrate 10 has an intermediate width or a high height. , the amplitude or height of both sides is low.
- Step 3 as shown in FIG. 3, after the first undulations 11 and the second undulations 12 are preformed, the first undulations 11 and the second undulations 12 are rolled on the basis of the preform,
- the wave pitch and the amplitude of the two protruding portions are made uniform to form a wave-shaped corrugated fin 20 as a whole.
- the wave distance referred to herein refers to the distance between the center positions of two adjacent peaks or troughs, and the amplitude refers to the height difference between the horizontal positions of adjacent peaks and troughs. That is to say, the formed corrugated fins 20 are uniform in shape and have exactly the same shape for each set of the protruding units.
- the step of rolling the first undulations 11 and the second undulations 12 in this step can be divided into two steps, namely:
- Step 3-1 As described above, the height of the second undulation 12 formed in the step 2 is smaller than the height of the first undulation 11, and therefore, the second undulation 12 is first rolled so that the second wave
- the pitch and amplitude of the protrusions 12 are the same as the pitch and amplitude of the first undulations 11;
- Step 3-2 After the coincidence, the waveform fins 20 are laterally compressed to shorten the wave pitch between the two peaks of the wave fins 20 (corresponding to reducing the period of one waveform) while increasing the amplitude of the wave fins 20 for
- the overall shape of the corrugated fins 20 is compressed into a shape that can be placed in a flat tube. Compressed wave fin
- Each of the protrusion units 20 is uniform.
- Step 4 As shown in FIG. 4, since the integrity of the corrugated fins 20 is shaped in steps 1-3, the formed corrugated fins 20 are approximately sinusoidal, and the peaks and troughs are curved, which is disadvantageous for subsequent Welding. Therefore, in this step 4, each of the peak portion 21 and the trough portion 22 on the corrugated fin 20 is rolled, and the curved peaks and troughs are pressed into a flat surface, and the bent portion remains in an arc shape, thereby A crest portion 21 and a trough portion 22 having a rounded rectangular shape are formed. Specifically, the steps of pre-forming and finishing are also employed:
- Step 4-1 Rolling preforming of the corrugated fins 20, the peak portion 21 and the trough portion 22 are arcuate, and the fins between the crest portion 21 and the trough portion 22 are approximated in the vertical direction, so that the corrugated fins 20 The whole is tooth-shaped, and the peak portion 21, the trough portion 22 and the bent portion of the corrugated fin 20 are preformed in a round shape;
- Step 4-2 Rolling and flattening the peak portion 21 of the trough portion 22, so that the top and bottom portions of the corrugated fin 20 are in a plane, and the bent portion is rounded, and the whole shape is rounded and rectangular.
- the contact area of the corrugated fin 20 with the subsequent flat tube can be expanded to face contact, and the area for placing the soldering flux is also increased accordingly.
- the crest portion 21 and the trough portion 22 of the corrugated fin 20 are roll-formed inward.
- the term "inwardly” as used herein means that the central portion of the corrugated fin 20, that is, the opposite direction extending toward the crest portion 21 and the trough portion 22, is rolled to form the topmost and lowest portions of the corrugated fin 20.
- the inner pit, the flux can be accommodated in the pit. For the formation of pits, it can be specifically divided into:
- Step 5-1 As shown in FIG. 6, FIG. 7a and FIG. 7b, the reverse rolling peak portion 21 and the trough portion 22 are such that the peaks and trough portions 22 of the original protrusion are recessed inward to further expand the supportable flux. Area. The enlarged area is a preformed first fillet 23 having a depth, and the depth extending can be used to support the flux;
- Step 5-2 further increasing the pre-formed first fillet 23 to form the second fillet 24, and as the depth of the second fillet 24 on the basis of the first fillet 23 increases, the acceptable solder dose It also increases accordingly.
- the depth of the second fillet 24 can be set to twice the first fillet 23, making full use of the effect of the preform.
- the manufactured fins may be conveyed to a gear path through a conveyor belt, or cut according to a specific length before being conveyed to obtain a length requirement.
- the ends of the cut fins still need to satisfy the usual condition of maintaining the internal passage, and no blockage deformation occurs.
- the channel After being conveyed to the gear shaping machine passage, the channel has a step of applying a flux to the fins by the upper and lower flux rollers. Then, as the fins are inserted into the flat tube, and the flat tubes are passed through the brazing furnace together, the flux is melted after the high temperature treatment, and the fins and the flat tubes are welded to form a flat tube assembly.
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Abstract
一种用于热交换器的翅片的制造方法，包括以下步骤：步骤1：取一金属基材（10）并校直，辊压金属基材（10）的中部并形成成对的第一波浪状突起（11）；步骤2：分别辊压金属基材（10）的两端至第一波浪状突起（11）间的部分，并形成成对的第二波浪状突起（12）；步骤3：辊压第一波浪状突起（11）及第二波浪状突起（12），使第一波浪状突起（11）及第二波浪状突起（12）的波距和幅度一致，形成波形翅片（20）；步骤4：辊压波形翅片（20）的每一波峰部分（21）和波谷部分（22），并将波峰部分（21）和波谷部分（22）成型为圆角矩形状；步骤5：辊压每一波峰和波谷处的部分，使波峰部分（21）、波谷部分（22）分别向内成型。
Description
本发明涉及热交换器设备领域，尤其涉及一种用于热交换器的翅片和扁管总成的制造方法。
目前，热交换器内使用的翅片均为铝箔材料，其厚度较薄，成型后的翅片强度较低。且在翅片插入散热扁管后，没有足够的空间涂抹钎剂使其附着在铝箔材料表面，因此在焊接时，致使翅片与散热扁管焊接不良。
同时，由于翅片强度不足，需要将翅片分割，分段地插入扁管中，安装设备流程效率低下。
若采用上述分割翅片保证其强度的方式，易导致翅片两端变形堵塞，原本以成型的翅片造型得到了破坏。
因此，需要一种制造翅片及扁管总成的新式制造方法，可同时满足强度足够、无需分割、焊接良好的要求。
发明概要
为了克服上述技术缺陷，本发明的目的在于提供一种用于热交换器的翅片和扁管总成的制造方法，选用不同规格的材料可实现多种翅片的制造要求，且成型后翅片强度高、生产工艺简单。
本发明公开了一种用于热交换器的翅片的制造方法，包括以下步骤：
步骤1：取一金属基材并校直，辊压所述金属基材的中部并形成成对的
第一波浪状突起；
步骤2：分别辊压所述金属基材的两端至所述第一波浪状突起间的部分，并形成成对的第二波浪状突起；
步骤3：辊压所述第一波浪状突起及第二波浪状突起，使所述第一波浪状突起及第二波浪状突起的波距和幅度一致，形成波形翅片；
步骤4：辊压所述波形翅片的每一波峰部分和波谷部分，并将所述波峰部分和波谷部分成型为圆角矩形状；
步骤5：辊压每一所述波峰和波谷处的部分，使波峰部分、波谷部分分别向内成型。
优选地，所述步骤1中，所述第一波浪状突起包括四组突起单元，相对所述金属基材的对称轴对称成型。
优选地，所述步骤2中，所述第二波浪状突起包括四组突起单元，相对所述金属基材的对称轴对称成型。
优选地，所述第二波浪状突起的高度小于所述第一波浪状突起的高度。
优选地，所述步骤3包括：
步骤3-1：辊压所述第二波浪状突起，使所述第一波浪状突起及第二波浪状突起的波距和幅度一致；
步骤3-2：横向压缩所述波形翅片，使所述波形翅片的幅度增大，波距缩短。
优选地，所述步骤4包括：
步骤4-1：预成型所述波峰部分和波谷部分呈圆弧状；
步骤4-2：进一步辊压所述波峰部分和波谷部分成型为圆角矩形状。
优选地，所述步骤5包括：
步骤5-1：反向辊压所述波峰部分及波谷部分，使所述波峰部分及波谷部分预成型一第一圆角；
步骤5-2：整形所述第一圆角，形成第二圆角。
优选地，所述第一圆角的深度为所述第二圆角深度的1/2。
本发明还公开了一种用于热交换器的扁管总成的制造方法，包括以下步骤：
步骤1：执行上述翅片的制造方法，形成用于热交换器的翅片；
步骤2：通过传送带传送所述翅片至一插齿机通道，并所述翅片涂抹钎剂；
步骤3：将所述翅片插入一扁管内；
步骤4：将所述扁管通过钎焊炉，形成所述扁管总成。
采用了上述技术方案后，与现有技术相比，具有以下有益效果：
1.只需选择不同规格的铝箔，即可实现多种翅片的制造要求；
2.生产工艺中生产效率高且适用范围广；
3.翅片整体成型，强度高。
图1为符合本发明一优选实施例中制造方法步骤1的成型过程示意图；
图2为符合本发明一优选实施例中制造方法步骤2的成型过程示意图；
图3为符合本发明一优选实施例中制造方法步骤3的成型过程示意图；
图4为符合本发明一优选实施例中制造方法步骤4的成型过程示意图；
图5为符合本发明一优选实施例中制造方法步骤5的成型过程示意图；
图6为符合本发明一优选实施例中成型后的翅片结构示意图；
图7a为符合本发明一优选实施例中成型后的翅片的侧视图；
图7b为图7a中局部A的放大示意图。
附图标记：
10-金属基材、11-第一波浪状突起、12-第二波浪状突起；
20-波形翅片、21-波峰部分、22-波谷部分、23-第一圆角、24-第二圆角。
发明内容
以下结合附图与具体实施例进一步阐述本发明的优点。
参阅图1-5，分别示出了制造用于热交换器的翅片的方法，具体地：
-步骤1：如图1所示，使用者获取金属基材10作为制造扁管的基础，该金属基材10可以是铝箔、金属料带(复合层)等，首先进行校直，以满足最后成型的翅片表面连续无突起或凹坑。而后将金属基材10放入一模具内，对金属基材10的中部进行辊压，辊压后的金属基材10其中成型有成对的第一波浪状突起11。具体地，如反复在金属基材10的两端面辊压金属基材10的中部，形成例如四组突起单元，每一突起单元包括两波谷与一波峰，并在波谷位置互相连接。同时该四组突起单元相对于金属基材10的对称轴对称，也即，金属基材10的对称轴两侧分别辊压有两组突起单元，对称轴位于一个突起单元的波谷处，两侧的突起单元呈轴对称或中心对称(未示出)。完成上述辊压步骤后，金属基材10在中部预成型，形成有翅片的初步形态。
-步骤2：如图2所示，对金属基材10上部未辊压仍为平直的部分进行辊压，该部分也即为金属基材10的两端部至第一波浪状突起11间的部分。辊压后，将该部分成型为成对的第二波浪状突起12，也就是说，分别位于第一波浪状突起11的两侧，直至金属基材10的两端部。为保证在辊压第二波浪状突起12时不影响第一波浪状突起11，第二波浪状突起12的幅度可小于第一波浪状突起11的高度，即对第二波浪状突起12预成型。例如，可同样预成型四组突起单元，相对于金属基材10的对称轴对称，在第一波浪状突起11的两侧分别具有两组突起单元，整个金属基材10呈中间幅度或高度高，两边幅度或高度低。
-步骤3：如图3所示，待第一波浪状突起11和第二波浪状突起12预成型后，在预成型的基础上辊压第一波浪状突起11和第二波浪状突起12，使得两处突起部分的波距和幅度一致，形成整体呈波浪状的波形翅片20。本文中所指的波距，是指每相邻两波峰或波谷的中心位置间的距离，而幅度则是指相邻波峰和波谷所在水平位置的高度差。也就是说，所形成的波形翅片20，为各处均匀、每一组突起单元完全相同的形状。在该步骤中辊压第一波浪状突起11和第二波浪状突起12的步骤可分为两步，分别为：
步骤3-1：如前所述的，步骤2中形成的第二波浪状突起12的高度小于第一波浪状突起11的高度，因此，首先辊压第二波浪状突起12，使得第二波浪状突起12的波距和幅度与第一波浪状突起11的波距和幅度相同；
步骤3-2：一致后，横向压缩波形翅片20，缩短波形翅片20每两波峰间的波距(相当于减少一波形的周期)，同时增大波形翅片20的幅度，用于将波形翅片20的整体形状压缩为可放入扁管内的造型。压缩后的波形翅片
20中各突起单元均匀一致。
-步骤4：如图4所示，由于步骤1-3中对波形翅片20的整体性进行定型，所成型的波形翅片20近似于正弦波状，波峰和波谷位置为弧形，不利于后续的焊接。因此在该步骤4中，对波形翅片20上的每一处波峰部分21和波谷部分22辊压，将弧形的波峰和波谷辊压为平面，而弯折部分仍保留为弧形，从而形成圆角矩形状的波峰部分21和波谷部分22。具体地，同样可采用先预成型后精加工的步骤：
步骤4-1：对波形翅片20辊压预成型，波峰部分21和波谷部分22呈圆弧状，而波峰部分21与波谷部分22间的翅片近似于竖直方向，使得波形翅片20整体呈齿状，且波峰部分21、波谷部分22与波形翅片20的弯折处预成型圆角状；
步骤4-2：辊压平整波峰部分21波谷部分22，使得波形翅片20的最顶部和最底部呈一平面，弯折处为圆角状，整体成型圆角矩形齿状。
由此，波形翅片20与后续扁管的接触面积可扩大为面接触，且用于放置焊接钎剂的面积也相应增大。
-步骤5：如图5所示，为了进一步承托钎剂，对波形翅片20的波峰部分21和波谷部分22向内辊压成型。此处所指“向内”，意为向着波形翅片20的中心部分，也即向着波峰部分21和波谷部分22延伸的相反方向辊压，形成波形翅片20的最顶部和最低部的向内凹坑，钎剂可容置在该凹坑内。对于凹坑的形成，可具体分为：
步骤5-1：如图6、图7a及7b所示，反向辊压波峰部分21和波谷部分22，使得原本突起的波峰和波谷部分22向内凹陷，进一步扩大可承托钎剂
的面积。该增大的面积为一预成型的第一圆角23，其具有一深度，深度所延伸之处均可用于承托钎剂；
步骤5-2：进一步增大已预成型的第一圆角23形成第二圆角24，且随着第二圆角24在第一圆角23基础上的深度增加，可容置的钎剂量也相应增大。优选地，可将第二圆角24的深度设置为第一圆角23的2倍，充分利用预成型的效果。
在上述任一实施例中翅片制造方法的基础上，可将制造完成的翅片通过传送带传送至一插齿机通道，或在传送至前，根据特定长度进行切割，以得到满足长度要求的翅片，切割后的翅片两端仍需满足保持内部通道的通常，不会发生堵塞变形的情况。传送至插齿机通道后，通道中有上下钎剂滚轮对翅片进行涂抹钎剂的步骤。而后随着翅片插入扁管，并随着扁管一同通过钎焊炉，高温处理后钎剂熔化，翅片与扁管焊接，形成扁管总成。
应当注意的是，本发明的实施例有较佳的实施性，且并非对本发明作任何形式的限制，任何熟悉该领域的技术人员可能利用上述揭示的技术内容变更或修饰为等同的有效实施例，但凡未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何修改或等同变化及修饰，均仍属于本发明技术方案的范围内。
Claims (9)
- 一种用于热交换器的翅片的制造方法，其特征在于，包括以下步骤：步骤1：取一金属基材并校直，辊压所述金属基材的中部并形成成对的第一波浪状突起；步骤2：分别辊压所述金属基材的两端至所述第一波浪状突起间的部分，并形成成对的第二波浪状突起；步骤3：辊压所述第一波浪状突起及第二波浪状突起，使所述第一波浪状突起及第二波浪状突起的波距和幅度一致，形成波形翅片；步骤4：辊压所述波形翅片的每一波峰部分和波谷部分，并将所述波峰部分和波谷部分成型为圆角矩形状；步骤5：辊压每一所述波峰和波谷处的部分，使波峰部分、波谷部分分别向内成型。
- 如权利要求1所述的用于热交换器的翅片的制造方法，其特征在于，所述步骤1中，所述第一波浪状突起包括四组突起单元，相对所述金属基材的对称轴对称成型。
- 如权利要求1所述的用于热交换器的翅片的制造方法，其特征在于，所述步骤2中，所述第二波浪状突起包括四组突起单元，相对所述金属基材的对称轴对称成型。
- 如权利要求3所述的用于热交换器的翅片的制造方法，其特征在于，所述第二波浪状突起的高度小于所述第一波浪状突起的高度。
- 如权利要求1所述的用于热交换器的翅片的制造方法，其特征在于，所述步骤3包括：步骤3-1：辊压所述第二波浪状突起，使所述第一波浪状突起及第二波浪状突起的波距和幅度一致；步骤3-2：横向压缩所述波形翅片，使所述波形翅片的幅度增大，波距缩短。
- 如权利要求1所述的用于热交换器的翅片的制造方法，其特征在于，所述步骤4包括：步骤4-1：预成型所述波峰部分和波谷部分呈圆弧状；步骤4-2：进一步辊压所述波峰部分和波谷部分成型为圆角矩形状。
- 如权利要求1所述的用于热交换器的翅片的制造方法，其特征在于，所述步骤5包括：步骤5-1：反向辊压所述波峰部分及波谷部分，使所述波峰部分及波谷部分预成型一第一圆角；步骤5-2：整形所述第一圆角，形成第二圆角。
- 如权利要求7所述的用于热交换器的翅片的制造方法，其特征在于，所述第一圆角的深度为所述第二圆角深度的1/2。
- 一种用于热交换器的扁管总成的制造方法，其特征在于，包括以下步骤：步骤1：执行如权利要求1所述的制造方法，形成用于热交换器的翅片；步骤2：通过传送带传送所述翅片至一插齿机通道，并所述翅片涂抹钎剂；步骤3：将所述翅片插入一扁管内；步骤4：将所述扁管通过钎焊炉，形成所述扁管总成。
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