TWI773114B - Manufacturing method of aluminum alloy pipe for bicycle - Google Patents
Manufacturing method of aluminum alloy pipe for bicycle Download PDFInfo
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Abstract
一種自行車用鋁合金管材的製造方法，包含下列步驟： A method for manufacturing an aluminum alloy pipe for bicycles, comprising the following steps:
製備管材主體：取鋁合金型材製得圓環狀的管材主體，並於該管材主體的側緣形成數道凹槽； Prepare the main body of the pipe material: take the aluminum alloy profile to make the main body of the annular pipe material, and form several grooves on the side edge of the main body of the pipe material;
製備預浸體：纖維材料塗佈液態的熱固性樹脂，據此製得預浸體； Prepreg preparation: fiber material is coated with liquid thermosetting resin, and prepreg is prepared accordingly;
填入預浸體：將該預浸體填入各該凹槽； Filling the prepreg: filling the prepreg into each of the grooves;
纏繞樹脂收縮膜：將長帶狀的樹脂收縮膜迴旋纏繞設置有該預浸體的該管材主體； Winding the resin shrink film: winding the long strip-shaped resin shrink film around the pipe body provided with the prepreg;
固化成型：對該管材主體、該預浸體及該樹脂收縮膜的總成加熱，使該樹脂收縮膜收縮，且該熱固性樹脂固化，據此形成補強體；以及 Curing and molding: heating the assembly of the pipe body, the prepreg and the resin shrinkable film to shrink the resin shrinkable film, and the thermosetting resin is cured, thereby forming a reinforcing body; and
拆除樹脂收縮膜：拆除該樹脂收縮膜，製得具有該補強體的鋁合金管材。 Removing the resin shrink film: removing the resin shrink film to obtain an aluminum alloy pipe with the reinforcing body.
Description
本發明涉及應用於自行車的鋁合金管材，進一步而言，尤指一種自行車用鋁合金管材的製造方法。 The present invention relates to an aluminum alloy pipe material applied to bicycles, and more particularly, to a manufacturing method of an aluminum alloy pipe material for bicycles.
一般自行車由管材構成的零部件包含車手把、座管、車架及輪框；車架包括上管、下管、立管、後上叉及後下叉。輪框在製造時先擠出具輪框斷面的直管材，依不同的外徑裁切滾彎成圓形，再焊接製成輪框。 Generally, the components of bicycles made of pipes include handlebars, seat tubes, frames and wheel frames; the frame includes top tubes, down tubes, seat tubes, seat forks and chain forks. When the wheel frame is manufactured, a straight pipe with a wheel frame section is extruded, cut and rolled into a circular shape according to different outer diameters, and then welded to form the wheel frame.
習見應用於自行車的管材，依據材料區分，主要可分為鋁合金管材及碳纖維複合材料管材兩類，其中，鋁合金管材大多選用6061鋁合金或7075鋁合金製成，6061鋁合金的比重為2.70g/cm3，製作自行車管材常見選用的鋁合金材料編號有6061-O、6061-T4、6061-T6、6061-T651及6061-T42，7075鋁合金的比重為2.80g/cm3，製作自行車管材常見選用的材料編號有7075-O、7075-T6及7075-T652，碳纖維複合材料的比重為1.5g/cm3。 The pipes used in bicycles can be divided into aluminum alloy pipes and carbon fiber composite pipes according to the material. Among them, aluminum alloy pipes are mostly made of 6061 aluminum alloy or 7075 aluminum alloy, and the specific gravity of 6061 aluminum alloy is 2.70. g/cm 3 , the aluminum alloy material numbers commonly used for making bicycle pipes are 6061-O, 6061-T4, 6061-T6, 6061-T651 and 6061-T42. The specific gravity of 7075 aluminum alloy is 2.80g/cm 3 . The commonly used material numbers for pipes are 7075-O, 7075-T6 and 7075-T652, and the specific gravity of the carbon fiber composite material is 1.5g/cm 3 .
由是可知，碳纖維複合材料的強度/重量比，明顯優於鋁合金，但是碳纖維複合材料的價格較鋁合金昂貴，使得利用碳纖維複合材料製作的管材不易普及，而鋁合金管材的強度低於碳纖維複合材料管材。 It can be seen that the strength/weight ratio of carbon fiber composite materials is obviously better than that of aluminum alloys, but the price of carbon fiber composite materials is more expensive than that of aluminum alloys, which makes the pipes made of carbon fiber composite materials difficult to popularize, and the strength of aluminum alloy pipes is lower than that of carbon fiber. Composite pipe.
本發明主要目的在於提供一種自行車用鋁合金管材的製造方法，藉由首創的製造方法，鋁合金管材得以藉由補強體的設置提高強度。 The main purpose of the present invention is to provide a manufacturing method of an aluminum alloy pipe for bicycles. With the pioneered manufacturing method, the strength of the aluminum alloy pipe can be improved by the arrangement of the reinforcing body.
為滿足前述目的，本發明係一種自行車用鋁合金管材的製造方法，包含下列步驟： In order to meet the aforementioned purpose, the present invention relates to a method for manufacturing an aluminum alloy pipe for bicycles, comprising the following steps:
製備管材主體：取一具有預定斷面的直管狀鋁合金型材作為胚材，將該胚材製成自行車零部件的管材主體，而後於該管材主體的側緣形成數道凹槽； Prepare the main body of the pipe material: take a straight tubular aluminum alloy profile with a predetermined section as the blank material, make the blank material into the pipe material body of the bicycle parts, and then form several grooves on the side edge of the pipe material body;
製備預浸體：纖維材料塗佈液態的熱固性樹脂，據此製得預浸體； Prepreg preparation: fiber material is coated with liquid thermosetting resin, and prepreg is prepared accordingly;
填入預浸體：在該熱固性樹脂未固化前，將該預浸體填入各該凹槽； Filling the prepreg: before the thermosetting resin is not cured, the prepreg is filled into each of the grooves;
纏繞樹脂收縮膜：將長帶狀的樹脂收縮膜拉伸並斜向迴旋纏繞設置有該預浸體的該管材主體，該樹脂收縮膜係可拉伸變形並可受熱收縮的熱塑性樹脂構成； Winding resin shrink film: stretch and obliquely twist and wrap the main body of the pipe provided with the prepreg. The resin shrink film is made of a thermoplastic resin that can be stretched and deformed and can be thermally shrunk;
固化成型：對該管材主體、該預浸體及該樹脂收縮膜的總成加熱適當的時間，加熱溫度係為該熱固性樹脂的熱固化溫度，使該樹脂收縮膜收縮對該預浸體形成壓力，據使該熱固性樹脂固化，該纖維材料及該熱固性樹脂結合形成補強體；以及 Curing molding: heating the assembly of the pipe body, the prepreg and the resin shrink film for an appropriate time, the heating temperature is the thermosetting temperature of the thermosetting resin, and the resin shrink film shrinks to form pressure on the prepreg , according to curing the thermosetting resin, the fiber material and the thermosetting resin are combined to form a reinforcement; and
拆除樹脂收縮膜：拆除該樹脂收縮膜，製得具有該補強體的鋁合金管材。 Removing the resin shrink film: removing the resin shrink film to obtain an aluminum alloy pipe with the reinforcing body.
執行前述製造方法，可製得該鋁合金管材，該鋁合金管材的整體強度藉由該補強體獲得提升。 By executing the above-mentioned manufacturing method, the aluminum alloy pipe material can be produced, and the overall strength of the aluminum alloy pipe material can be improved by the reinforcing body.
01:鋁合金管材 01: Aluminum alloy pipe
10:-管材主體 10:- Pipe body
12:凹槽 12: Groove
20:預浸體 20: Prepreg
30:樹脂收縮膜 30: Resin shrink film
40:補強體 40: Reinforcement
3:部份放大顯示於圖3 3: Partially enlarged and shown in Figure 3
W:寬度 W: width
D:深度 D: depth
〔圖1〕係本發明實施例一之流程圖。 [FIG. 1] is a flow chart of Embodiment 1 of the present invention.
〔圖2〕係執行本發明實施例一之製備管材主體步驟所製得之管材主體的部份立體圖，顯示該管材主體截取一段的狀態。 [FIG. 2] is a partial perspective view of a pipe material body obtained by performing the step of preparing a pipe material body in Embodiment 1 of the present invention, showing a state in which a section of the pipe material body is cut.
〔圖3〕係圖2的部份放大圖。 [Fig. 3] is a partial enlarged view of Fig. 2. [Fig.
〔圖4〕係執行本發明實施例一之纏繞樹脂收縮膜步驟的實施狀態示意圖。 [FIG. 4] is a schematic diagram of the implementation state of performing the step of wrapping the resin shrink film in the first embodiment of the present invention.
〔圖5〕係執行本發明實施例一製得鋁合金管材的部份立體示意圖，顯示該鋁合金管材截取一段的狀態。 [Fig. 5] is a partial three-dimensional schematic view of the aluminum alloy pipe obtained by implementing the first embodiment of the present invention, showing the state of a section of the aluminum alloy pipe.
〔圖6〕係執行本發明實施例二之製備管材主體步驟所製得之管材主體的部份立體圖，顯示該管材主體截取一段的狀態。 [Fig. 6] is a partial perspective view of the pipe body obtained by performing the process of preparing the pipe body in the second embodiment of the present invention, showing the state of a section of the pipe body.
本發明的技術特徵在於自行車用鋁合金管材的製造方法，因此圖式僅以輪框此等較複雜的斷面形狀舉例說明。如圖1至圖5所示，本發明一種自行車用鋁合金管材的製造方法之實施例一，包括下列步驟： The technical feature of the present invention lies in the manufacturing method of the aluminum alloy pipe material for bicycles, so the drawings only illustrate the relatively complex cross-sectional shape of the wheel frame as an example. As shown in FIG. 1 to FIG. 5 , Embodiment 1 of a method for manufacturing an aluminum alloy pipe for bicycles of the present invention includes the following steps:
製備管材主體：取一具有預定斷面的直管狀鋁合金型材作為胚材，將該胚材製成自行車零部件的管材主體(10)，而後於該管材主體(10)的側緣形成數道凹槽(12)。 Prepare the main body of the pipe material: take a straight tubular aluminum alloy profile with a predetermined cross-section as the blank material, make the blank material into the pipe material body (10) of the bicycle parts, and then form several lines on the side edge of the pipe material body (10). groove (12).
製備預浸體(prepreg)：纖維材料塗佈液態的熱固性樹脂，據此製得預浸體(20)。前述纖維材料係選自碳纖維、玻璃纖維、克維拉(Kevlar)纖維、硼纖維及鈦纖維中的至少一種。當選用二種以上不同的纖 維材料時，可將不同的纖維材料採用堆疊的方式實施，例如底層採用玻璃纖維，而上層採用碳纖維；堆疊完成後再塗佈液態的熱固性樹脂形成該預浸體(20)。 Preparation of prepreg: The fiber material is coated with a liquid thermosetting resin, whereby a prepreg (20) is prepared. The aforementioned fiber material is at least one selected from carbon fibers, glass fibers, Kevlar fibers, boron fibers, and titanium fibers. When choosing more than two different fibers When the dimensional material is used, different fiber materials can be implemented by stacking, for example, glass fiber is used for the bottom layer, and carbon fiber is used for the upper layer; after the stacking is completed, liquid thermosetting resin is applied to form the prepreg (20).
填入預浸體：在該熱固性樹脂未固化前，將該預浸體(20)填入各該凹槽(12)。 Filling the prepreg: before the thermosetting resin is cured, the prepreg (20) is filled into each of the grooves (12).
纏繞樹脂收縮膜：將長帶狀的樹脂收縮膜(30)拉伸並斜向迴旋纏繞設置有該預浸體(20)的該管材主體(10)，該樹脂收縮膜(30)係可拉伸變形並可受熱收縮的熱塑性樹脂構成。 Winding the resin shrinkable film: the long strip-shaped resin shrinkable film (30) is stretched, and the pipe body (10) provided with the prepreg (20) is wound obliquely, and the resin shrinkable film (30) is stretchable. Extensible and heat-shrinkable thermoplastic resin.
固化成型：對該管材主體(10)、該預浸體(20)及該樹脂收縮膜(30)的總成，加熱適當的時間，加熱溫度係為該熱固性樹脂的熱固化溫度，使該樹脂收縮膜(30)收縮並緊束著該預浸體(20)，該樹脂收縮膜(30)對該預浸體(20)形成壓力，據使該熱固性樹脂固化，該纖維材料及該熱固性樹脂結合形成補強體(40)。以及 Curing molding: the assembly of the pipe body (10), the prepreg (20) and the resin shrinkable film (30) is heated for an appropriate time, and the heating temperature is the thermosetting temperature of the thermosetting resin, so that the resin The shrink film (30) shrinks and tightly binds the prepreg (20), and the resin shrink film (30) forms pressure on the prepreg (20), according to which the thermosetting resin is cured, the fiber material and the thermosetting resin Combined to form reinforcement (40). as well as
拆除樹脂收縮膜：拆除該樹脂收縮膜(30)，製得具有該補強體(40)的鋁合金管材(01)。 Removing the resin shrink film: removing the resin shrink film (30) to obtain an aluminum alloy pipe (01) with the reinforcing body (40).
執行前述實施例一，可製得該鋁合金管材(01)，該鋁合金管材(01)包含一個該管材主體(10)及數個該補強體(40)，其中，該管材主體(10)係由管狀鋁合金型材構成，該補強體(40)係由該纖維材料及該熱固性樹脂結合構成，且該補強體(40)嵌設於該管材主體(10)，據此，該鋁合金管材(01)的整體強度藉由該補強體(40)獲得提升，且該管材主體(10)佔有該鋁合金管材(01)主要的重量及體積，而可在價格及強度上取得均衡，具有高產業價值。 By carrying out the aforementioned first embodiment, the aluminum alloy pipe (01) can be obtained, and the aluminum alloy pipe (01) comprises a pipe body (10) and a plurality of reinforcements (40), wherein the pipe body (10) It is composed of a tubular aluminum alloy profile, the reinforcing body (40) is formed by combining the fiber material and the thermosetting resin, and the reinforcing body (40) is embedded in the main body (10) of the pipe material. According to this, the aluminum alloy pipe material The overall strength of (01) is improved by the reinforcing body (40), and the main body (10) of the pipe occupies the main weight and volume of the aluminum alloy pipe (01), so that the price and strength can be balanced, with high industrial value.
進一步而言，該凹槽(12)係鳩尾槽乃較佳的實施選擇，據 此，該補強體(40)形成後，該補強體(40)不易脫出該凹槽(12)，該鋁合金管材(01)應用裝置於自行車，自行車的行車過程中，路面造成的巔簸及振動，不易使該補強體(40)脫離該管材主體(10)，據此提高該補強體(40)的定位可靠度；該凹槽(12)於槽底部份的寬度W為10mm至25mm，該凹槽(12)的深度D則為0.3mm至0.9mm，該寬度W及該深度D的尺寸、該寬度W與該深度D之間的比例關係，均可視需要變化，不以前述例示為限。 Further, the groove (12) is a dovetail groove, which is a better choice for implementation. Therefore, after the reinforcing body (40) is formed, the reinforcing body (40) is not easy to come out of the groove (12), and the aluminum alloy pipe (01) is applied to the bicycle. and vibration, it is difficult to make the reinforcing body (40) separate from the main body (10) of the pipe material, thereby improving the positioning reliability of the reinforcing body (40); the width W of the groove (12) at the bottom of the groove is 10mm to 25mm, the depth D of the groove (12) is 0.3mm to 0.9mm, the size of the width W and the depth D, the proportional relationship between the width W and the depth D, can be changed as needed, not with the aforementioned Examples are limited.
該凹槽(12)係沿著該管材主體(10)的側緣形成圓環狀，且各該凹槽(12)分別配置於該管材主體(10)的兩側，該凹槽(12)的數量可視需要變化，不以圖式所例示為限。 The grooves (12) are formed in an annular shape along the side edges of the pipe body (10), and the grooves (12) are respectively arranged on both sides of the pipe body (10). The grooves (12) The number of can be changed as needed, and is not limited to the illustration in the drawings.
執行該填入預浸體步驟時，該預浸體(20)填入該凹槽(12)前，可選擇先行對該凹槽(12)的內部塗佈黏著劑，使得該預浸體(20)設置於該凹槽(12)後，該預浸體(20)不易脫離該凹槽(12)，據此提高該預浸體(20)設置於該凹槽(12)的定位可靠度，以利於後續該纏繞樹脂收縮膜步驟的執行。 When performing the step of filling the prepreg, before the prepreg (20) is filled into the groove (12), an adhesive may be optionally applied to the interior of the groove (12), so that the prepreg (20) 20) After being arranged in the groove (12), the prepreg (20) is not easily separated from the groove (12), thereby improving the positioning reliability of the prepreg (20) in the groove (12) , so as to facilitate the execution of the subsequent step of wrapping the resin shrink film.
構成該預浸體(20)的該熱固性樹脂係選自不飽和聚酯樹脂(unsaturated polyester resin)、環氧樹脂(epoxy resin)、酚醛樹脂(phenolic resin)及聚胺酯樹脂(polyurethane resin)中的任一種，實施例一係選用環氧樹脂作為該熱固性樹脂；該樹脂收縮膜(30)係橫向拉伸聚丙烯膜、縱向拉伸聚丙烯膜或縱橫雙向拉伸聚丙烯膜，配合選用環氧樹脂作為該熱固性樹脂，實施例一選用縱橫雙向拉伸聚丙烯膜，而為較佳的實施選擇。構成該預浸體(21)的纖維材料可視強度、後續加工等不同的條件需要採用碳纖維、玻璃纖維、克維拉(Kevlar)纖維、硼纖維及鈦纖維中的至少一種。 The thermosetting resin constituting the prepreg (20) is any one selected from unsaturated polyester resin, epoxy resin, phenolic resin and polyurethane resin. One, in the first embodiment, epoxy resin is used as the thermosetting resin; the resin shrink film (30) is a transversely stretched polypropylene film, a longitudinally stretched polypropylene film or a longitudinally and transversely biaxially stretched polypropylene film, and an epoxy resin is selected in conjunction with As the thermosetting resin, longitudinal and transverse biaxially oriented polypropylene film is used in Example 1, which is a better choice for implementation. The fiber material constituting the prepreg (21) needs to use at least one of carbon fiber, glass fiber, Kevlar fiber, boron fiber and titanium fiber depending on different conditions such as strength and subsequent processing.
基於該樹脂收縮膜(30)係為縱橫雙向拉伸聚丙烯膜，據使該 樹脂收縮膜(30)受熱收縮；基於選用環氧樹脂作為該熱固性樹脂，該固化成型步驟係將該管材主體(10)、該預浸體(20)及該樹脂收縮膜(30)的總成，置入110℃至130℃的空間1小時至3小時，使該熱固性樹脂固化，該補強體(40)形成。 Based on the resin shrink film (30) being a longitudinal and transverse biaxially oriented polypropylene film, the The resin shrink film (30) is thermally shrunk; based on the selection of epoxy resin as the thermosetting resin, the curing and molding step is an assembly of the pipe body (10), the prepreg (20) and the resin shrink film (30) , placed in a space of 110° C. to 130° C. for 1 hour to 3 hours, the thermosetting resin is cured, and the reinforcing body (40) is formed.
如圖6所示，實施例二係由實施例一變化而得，實施例二主要不同於實施例一在於，該凹槽(12)係沿著該管材主體(10)的側緣及圓環狀的內緣形成螺旋狀。 As shown in FIG. 6 , the second embodiment is obtained by changing the first embodiment. The second embodiment is mainly different from the first embodiment in that the groove (12) is along the side edge and the ring of the pipe body (10). The inner edge of the shape forms a spiral.
變化該凹槽(12)的數量、該凹槽(12)配置於該管材主體(10)的空間形態及該凹槽(12)的形狀，即可對應變化該補強體(40)配置於該管材主體(10)的空間形態及該補強體(40)的形狀，進而變化該鋁合金管材(01)的強度提升程度及該鋁合金管材(01)在特定方向性的強度提升。 By changing the number of the grooves (12), the spatial form of the grooves (12) disposed in the pipe body (10) and the shape of the grooves (12), the reinforcing body (40) can be correspondingly changed in the The spatial shape of the pipe body (10) and the shape of the reinforcing body (40) further change the strength improvement degree of the aluminum alloy pipe (01) and the strength improvement of the aluminum alloy pipe (01) in a specific direction.
Claims (9)
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| TW110103747A TWI773114B (en) | 2021-02-01 | 2021-02-01 | Manufacturing method of aluminum alloy pipe for bicycle |
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| TW110103747A TWI773114B (en) | 2021-02-01 | 2021-02-01 | Manufacturing method of aluminum alloy pipe for bicycle |
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| TWI773114B true TWI773114B (en) | 2022-08-01 |
| TW202231530A TW202231530A (en) | 2022-08-16 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM242352U (en) * | 2003-08-08 | 2004-09-01 | Shu-Mei Li | Unsophisticated regulation structure for hot tip valve pin for injecting plastic |
| CN102490372A (en) * | 2011-12-12 | 2012-06-13 | 中国科学院宁波材料技术与工程研究所 | Method for forming carbon fiber pipe and die thereof |
| CN102770254A (en) * | 2010-02-24 | 2012-11-07 | 夏普株式会社 | Die, die production method, and production of antireflection film |
| US20160311495A1 (en) * | 2015-04-24 | 2016-10-27 | Louis Liu | Bicycle component with reinforced structure and manufacturing method thereof |
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2021
- 2021-02-01 TW TW110103747A patent/TWI773114B/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM242352U (en) * | 2003-08-08 | 2004-09-01 | Shu-Mei Li | Unsophisticated regulation structure for hot tip valve pin for injecting plastic |
| CN102770254A (en) * | 2010-02-24 | 2012-11-07 | 夏普株式会社 | Die, die production method, and production of antireflection film |
| CN102490372A (en) * | 2011-12-12 | 2012-06-13 | 中国科学院宁波材料技术与工程研究所 | Method for forming carbon fiber pipe and die thereof |
| US20160311495A1 (en) * | 2015-04-24 | 2016-10-27 | Louis Liu | Bicycle component with reinforced structure and manufacturing method thereof |
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| TW202231530A (en) | 2022-08-16 |
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