TWI678270B - Microwave shaping device for pipe fittings - Google Patents
Microwave shaping device for pipe fittings Download PDFInfo
- Publication number
- TWI678270B TWI678270B TW107141299A TW107141299A TWI678270B TW I678270 B TWI678270 B TW I678270B TW 107141299 A TW107141299 A TW 107141299A TW 107141299 A TW107141299 A TW 107141299A TW I678270 B TWI678270 B TW I678270B
- Authority
- TW
- Taiwan
- Prior art keywords
- mold
- working pipe
- microwave
- pipe fittings
- working
- Prior art date
Links
Abstract
本發明係有關於一種管件微波塑型之裝置，其係利用微波進行碳纖維管件的加熱，以縮短碳纖維管件塑型的作業時間。其主要係由工作管件、定型件及保壓件所組成，該工作管件內設有膠膜，並於工作管件外層包覆定型件，位於定型件最外層設置保壓件，藉由模具的層層包覆使工作管件微波時能穩定塑型，而不會扭曲、變形或塌陷，即能運用微波將工作管件快速加熱塑型並迅速降溫取出，以節省一半以上的作業時間，確實提升碳纖維管件的製作效能。 The invention relates to a device for microwave shaping of pipe fittings, which is used for heating carbon fiber pipe fittings by using microwaves, so as to shorten the operation time of shaping carbon fiber pipe fittings. It is mainly composed of working pipe fittings, shaping parts and pressure retaining parts. The working pipe fittings are provided with an adhesive film, and the shaping parts are covered with an outer layer of the working pipe fittings. The layer coating enables the working pipe fittings to be shaped stably when microwaved, without distortion, deformation or collapse. That is, the working pipe fittings can be quickly heated and shaped using microwaves to quickly take out the temperature to save more than half of the operating time and indeed improve the carbon fiber pipe fittings Production efficiency.
Description
本發明係有關於一種管件微波塑型之裝置，其係利用模具包覆工作管件再進行微波，並於微波時搭配移動平台之左右移動，使工作管件能快速且均勻受熱，有效提升工作管件塑型之效能。 The invention relates to a device for microwave shaping of pipe fittings, which uses a mold to cover the working pipe fittings and then performs microwaves. When the microwaves are used, it is matched with the left and right movement of the moving platform, so that the working pipe fittings can be quickly and uniformly heated, and the working pipe fittings are effectively improved Type of performance.
按，碳纖維為一種新興的材料，而碳纖維具有其他材料不可比擬的比強度和比模量，密度只有1.6g/cm3左右，遠低於鋼鐵和鋁，將其應用於車身及其它零部件的設計可大為降低車體質量，因此能減低燃油消耗，將其運用在汽車、機車或自行車的產業上，可達到輕量化之效果。 Carbon fiber is an emerging material, while carbon fiber has incomparable specific strength and specific modulus of other materials. The density is only about 1.6g / cm 3 , which is far lower than steel and aluminum. The design can greatly reduce the weight of the car body, so it can reduce fuel consumption, and can be used in the automobile, motorcycle or bicycle industry to achieve the effect of weight reduction.
其次，碳纖維複合材料主要由碳纖維絲束和樹脂材料組成，碳元素化學性質穩定，無需進行表面防腐處理，其耐候性及耐老化性極好，壽命一般為鋼材的2-3倍，而具有耐久性。 Secondly, carbon fiber composite materials are mainly composed of carbon fiber tow and resin materials. The chemical properties of carbon elements are stable, and no surface anticorrosive treatment is required. Its weather resistance and aging resistance are excellent. The life is generally 2-3 times that of steel, and it is durable. Sex.
除此之外，碳纖維複合材料的抗拉強度一般都在3500Mpa以上，是普通鋼材的5倍，由碳纖維材料製作的車架、車體、車用零件在碰撞中變形極小，可提升行車者的安全性。 In addition, the tensile strength of carbon fiber composite materials is generally above 3500Mpa, which is five times that of ordinary steel. Frames, car bodies, and car parts made of carbon fiber materials have minimal deformation during collision, which can improve the driver's performance. safety.
然而，碳纖維之材料運用在車用管件上不易量化，其原因在於，碳纖維為平面布狀，其塑型作業仰賴手工層層貼覆在模管上，當貼覆完成後，將工作管件放入鋼模上，然後送入烤爐進行高溫加熱烘烤，使工作管件定型，烘烤完成後，必須等待降溫後，才能將其脫模取出；其過程中利用烤爐烘烤鋼模，需先加溫至設定溫度，並烘烤一段時間使工作管件均勻塑型，實係耗時耗能，又因為鋼模溫度高，所以必須等到鋼模降溫後，才能取出工作管件，而導致等待降溫的時間甚長，故烘烤至脫模的花費時間約60分鐘，其製作上相當耗時費力，且不易量化，也因此碳纖維管件製品單價甚高，所以消費者接受度不高，而無法將產品市場化。 However, the use of carbon fiber materials for automotive pipe fittings is not easy to quantify. The reason is that the carbon fiber is a flat cloth. The shaping operation relies on manual layering on the mold tube. After the coating is completed, the working tube is placed in The steel mold is then sent to the oven for high-temperature heating and baking to shape the working pipe. After the baking is completed, you must wait for the temperature to drop before removing it from the mold. In the process, the oven is used to bake the steel mold. Warm to the set temperature, and bake for a period of time to uniformly shape the working pipe, which is time-consuming and energy-consuming, and because the temperature of the steel mold is high, you must wait until the steel mold cools down before removing the working pipe, which results in waiting for cooling. The time is very long, so the time from baking to demolding is about 60 minutes. It is quite time-consuming and difficult to manufacture, and it is not easy to quantify. Because of this, the unit price of carbon fiber pipe products is very high, so the consumer's acceptance is not high, and the product cannot be changed. Marketization.
本發明人有鑒於碳纖維為高微波吸收材料，特別開發一種利用微波來加熱碳纖維管件，其必須搭配模具將碳纖維管件包覆在內，其能確保碳纖維管件微波時的定型及保壓，且無需等待降溫，就能快速將碳纖維管件取出，而能將加熱塑型至脫模的時間降至20分鐘，約節省傳統烤爐 1/3的時間，以加速碳纖維管件的產量，實為一理想的碳纖維管件塑型裝置之新發明。 In view of the fact that the carbon fiber is a high microwave absorbing material, the inventor has developed a method to heat the carbon fiber pipe by using a microwave. The carbon fiber pipe must be covered with a mold. The temperature can be quickly taken out of the carbon fiber pipe, and the time from heating to demoulding can be reduced to 20 minutes, saving about a traditional oven In 1/3 of the time, in order to accelerate the production of carbon fiber pipe fittings, it is indeed a new invention of an ideal carbon fiber pipe shaping device.
本發明係有關於一種管件微波塑型之裝置，其係利用微波進行碳纖維管件的加熱，以縮短碳纖維塑型的作業時間。其主要係將模具放入微波腔體內進行加熱，於微波時，將模具放於一移動平台上，使熱點及冷點不會集中，能全面性且均勻的受熱。 The invention relates to a device for microwave shaping of pipe fittings, which is used for heating carbon fiber pipe fittings by using microwaves to shorten the operation time of carbon fiber shaping. The main purpose is to put the mold into the microwave cavity for heating. During the microwave, the mold is placed on a mobile platform, so that hot spots and cold spots will not be concentrated, and it can be heated comprehensively and evenly.
其中，該模具係由工作管件、定型件及保壓件所組成，該工作管件內設有膠膜，其利用充氣模組對膠膜充氣，並於工作管件外層包覆定型件，位於定型件最外層設置保壓件，藉由模具的層層包覆使工作管件微波時能穩定塑型，而不會塌陷或變形。 Wherein, the mold is composed of a working pipe fitting, a shaping piece and a pressure-holding piece. The working pipe fitting is provided with a rubber film, which inflates the rubber film using an inflatable module, and covers the shaping pipe with an outer layer of the working pipe fitting. The outermost layer is provided with a pressure-holding member, and the working pipe fitting can be stably shaped when it is microwaved without being collapsed or deformed by covering the layers of the mold.
本發明之重點在於，利用微波進行工作管件的加熱，該微波特性為高熱能、低耗能、升溫快；而工作管件之碳纖維的特性為高吸熱及高散熱材，更是高微波吸收材料，不僅能縮短加熱時間，並可迅速脫模，以提升作業效能。 The focus of the present invention is to use microwaves to heat working pipe fittings. The microwave characteristics are high heat energy, low energy consumption, and fast temperature rise. The carbon fiber of the working pipe fittings has high heat absorption and high heat dissipation materials, and it is also a high microwave absorption material. Not only can shorten the heating time, but also can quickly demold to improve the work efficiency.
本發明之重點在於，該模具係利用定型件將工作管件定位，再藉由保壓件包覆定型件，其模具組成之定型件為微波可貫穿之塑膠材質，而保壓件為不吸收微波之金屬材質。 The main point of the present invention is that the mold uses positioning parts to locate the working pipe, and then covers the molding parts with pressure-retaining parts. The mold-forming parts are made of microwave-permeable plastic material, and the pressure-holding parts are non-absorbing microwaves. Metal material.
本發明之重點在於，該微波腔體內設置一移動平台，能左右移動或單向移動，使模具內的工作管件能均勻且快速受熱。 The main point of the present invention is that a moving platform is arranged in the microwave cavity, which can move left or right or unidirectionally, so that the working pipes in the mold can be uniformly and quickly heated.
本發明之重點在於，該工作管件內之膠膜充氣後，在工作管件內部向外撐開抵緊，能維持工作管件之塑形並防止變形。 The main point of the present invention is that after the rubber film in the working pipe is inflated, it is stretched out and tight inside the working pipe, which can maintain the shape of the working pipe and prevent deformation.
本發明利用將工作管件放入模具內，再搭配移動平台進行微波加熱，不僅縮短工作管件加熱時間，更提升整體產能，且建置成本低、效能高，而具極佳之經濟效益，實為工業4.0的創新技術。 The invention uses working pipes to be placed in a mold and then used with a mobile platform to perform microwave heating, which not only shortens the working pipe heating time, but also improves the overall productivity, and has low construction costs and high efficiency, and has excellent economic benefits. Innovative technologies for Industry 4.0.
1‧‧‧模具 1‧‧‧mould
10‧‧‧模具 10‧‧‧Mould
11‧‧‧定型件 11‧‧‧ Shaped Parts
12‧‧‧保壓件 12‧‧‧Pressure Holder
121‧‧‧鎖固元件 121‧‧‧Locking element
122‧‧‧通槽孔 122‧‧‧through slot
13‧‧‧膠模 13‧‧‧ rubber mold
2‧‧‧微波腔體 2‧‧‧ microwave cavity
21‧‧‧微波發射器 21‧‧‧Microwave Transmitter
22‧‧‧移動平台 22‧‧‧mobile platform
3‧‧‧工作管件 3‧‧‧Working Fittings
第1圖係本發明微波腔體之立體圖。 Figure 1 is a perspective view of a microwave cavity of the present invention.
第2圖係本發明模具之立體分解圖。 Figure 2 is an exploded perspective view of the mold of the present invention.
第3圖係本發明微波之示意圖。 Figure 3 is a schematic diagram of the microwave of the present invention.
第4圖係本發明移動平台移動之示意圖。 FIG. 4 is a schematic diagram of the mobile platform movement of the present invention.
第5圖係本發明膠膜充氣之示意圖。 Fig. 5 is a schematic diagram of inflation of the film of the present invention.
第6圖係本發明模具之另一實施例圖。 Figure 6 is a diagram of another embodiment of the mold of the present invention.
第7圖係本發明另一實施模具微波之示意圖。 FIG. 7 is a schematic diagram of another embodiment of the mold microwave of the present invention.
首先，一般固化碳纖維管件係採用烤爐加熱，實際存在傳熱速度慢、溫度分布不均、固化不均勻和固化效能差，發明人係專門研究微波加熱技術，為能改善碳纖維管件塑型的問題，而研發出專門用於微波之模具1，請參閱第1圖所示，係本發明微波腔體之立體圖，其主要係將模具1放入微波腔體2內進行加熱，該微波腔體2之上、下方設有複數個微波發射器21，並於微波腔體2設置有移動平台22，供將模具1放在移動平台22上，可於微波時將模具1左右移動。 First, the general solidified carbon fiber pipe is heated by an oven. Actually, there are slow heat transfer speed, uneven temperature distribution, uneven curing, and poor curing performance. The inventor specializes in microwave heating technology. In order to improve the shape of the carbon fiber pipe, The mold 1 for microwave is developed. Please refer to FIG. 1, which is a perspective view of the microwave cavity of the present invention. The mold 1 is mainly placed in the microwave cavity 2 for heating. The microwave cavity 2 is heated. A plurality of microwave transmitters 21 are provided above and below, and a mobile platform 22 is provided in the microwave cavity 2 for placing the mold 1 on the mobile platform 22, and the mold 1 can be moved left and right during microwave.
其次，請繼續參閱第2圖所示，係本發明模具之立體分解圖，該模具1係由工作管件3、定型件11及保壓件12所組成，該工作管件3係為高微波吸收材料，一般為碳纖維、碳纖維複合材或金屬複合材，本實施例採用碳纖維材料作說明，其利用碳纖維布手工層層黏貼包覆管件而成工作管件3，位於工作管件3外層為定型件11，該定型件11係以上下方貼合方式將工作管件3包覆定位，其為微波可貫穿之塑膠材質，而於定型件11之外層係為保壓件12，該保壓件12為上、下兩槽塊狀，位於外側及環邊開設有複數個通槽孔122，能利用鎖固元件121將定型件11固設在保壓件12內，以保持定型件11及工作管件3之壓力並防止外張、變形，該保壓件12為不吸收微波之金屬材質，所以微波可透過複數個通槽孔122發射入定型件11，並貫穿定型件11以加熱工作管件3，其中，該通槽孔122不限制尺寸及數量，以最佳化開模及微波吸收來設計。 Next, please continue to refer to FIG. 2, which is a three-dimensional exploded view of the mold of the present invention. The mold 1 is composed of a working pipe 3, a shaping member 11, and a pressure retaining member 12. The working pipe 3 is a high microwave absorbing material. Generally, it is carbon fiber, carbon fiber composite material or metal composite material. In this embodiment, a carbon fiber material is used for illustration. It uses carbon fiber cloth to manually attach and cover the pipe fittings to form a working pipe fitting 3. The outer layer of the working pipe fitting 3 is a shaping piece 11. The fixing part 11 covers the working pipe 3 in an upper and lower bonding manner. It is a plastic material that can be penetrated by microwaves. The outer layer of the fixing part 11 is a pressure holding part 12, which is an upper and a lower two. Slot-shaped, a plurality of through-slot holes 122 are provided on the outer side and the ring side, and the fixing member 11 can be fixed in the pressure retaining member 12 by using a locking element 121 to maintain the pressure of the fixing member 11 and the working pipe 3 and prevent It is expanded and deformed. The pressure-retaining member 12 is a metal material that does not absorb microwaves. Therefore, microwaves can be transmitted into the shaping member 11 through a plurality of through-holes 122 and penetrate the shaping member 11 to heat the working pipe 3, wherein the through groove Hole 122 unlimited And number to optimize the design mold and microwave absorption.
當進行微波加熱時，請接著參閱第3圖所示，係將模具1放入微波腔體2之移動平台22上，接著，發射微波產生器21，使微波由微波腔體2之上、下方往中央發射，而能對移動平台22上的模具1進行微波加熱，為能使熱點及冷點不會集中在單一位置，可藉由移動平台22之左右移動(如第4圖所示)，使模具1內的工作管件3能均勻平均受熱，本發明微波加熱至脫模取出工作管件3耗時約20分鐘，與傳統加熱方式相較，節省約1/3的時間，實具有進步性。 When performing microwave heating, please refer to FIG. 3, and place the mold 1 on the mobile platform 22 of the microwave cavity 2, and then emit the microwave generator 21 so that the microwave passes from the microwave cavity 2 above and below. It is emitted to the center, and the mold 1 on the mobile platform 22 can be microwave-heated. In order to prevent hot spots and cold spots from being concentrated in a single location, the mobile platform 22 can be moved left and right (as shown in Figure 4). The work pipe 3 in the mold 1 can be uniformly and evenly heated. The microwave heating of the present invention takes about 20 minutes to remove the work pipe 3 from the mold. Compared with the traditional heating method, it saves about 1/3 of the time, which is really progressive.
當模具1受熱時，請配合第5圖所示，係本發明膠模充氣之示意圖，位於工作管件3內設有膠模13，該膠模13係連接充氣模組以進行充氣(圖中未顯示)，使膠模13向外撐開，而能貼覆並抵緊碳纖維管件3內部，將工作管件3定型，以防止扭曲、變形或塌陷。 When the mold 1 is heated, please refer to FIG. 5 to illustrate the rubber mold inflation of the present invention. A rubber mold 13 is located in the working pipe 3, and the rubber mold 13 is connected to an inflatable module for inflation (not shown in the figure). (Shown), so that the rubber mold 13 is stretched outwards, so as to be able to cover and abut the inside of the carbon fiber pipe 3 and shape the working pipe 3 to prevent distortion, deformation or collapse.
另外，請再參閱第6圖所示，係本發明模具之另一實施例圖，本發明之模具10可減化零件，即不需保壓件12(如第5圖所示)，而係由工作管件3及定型件11組成模具10，其中，該定型件11為質地較硬且微波能貫穿之塑膠材質，該定型件11係以上、下方貼合方式將工作管件3包覆並固定，同樣具有保壓並防止變形之功能；微波時，請配合參閱第7圖所示，係將模具10放在微波腔體2之移動平台22上，再利用微波產生器21發射微波，使微波貫穿定型件11能直接對碳纖維管件3加熱，而移動平台22進行左右移動，使微波不會集中發射在模具10之任一定點上。 In addition, please refer to FIG. 6 again, which is a diagram of another embodiment of the mold of the present invention. The mold 10 of the present invention can reduce parts, that is, without the pressure retaining member 12 (as shown in FIG. 5), The mold 10 is composed of the working pipe fitting 3 and the shaping piece 11, wherein the shaping piece 11 is a plastic material with a hard texture and microwave penetration. The shaping piece 11 covers and fixes the working pipe fitting 3 above and below, It also has the function of holding pressure and preventing deformation. For microwave, please refer to Figure 7 to place the mold 10 on the mobile platform 22 of the microwave cavity 2, and then use the microwave generator 21 to emit microwaves to allow the microwaves to pass through. The shaping part 11 can directly heat the carbon fiber pipe part 3, and the moving platform 22 moves left and right, so that microwaves are not concentratedly emitted at any certain point of the mold 10.
綜上所述，本發明研發一模具包覆高微波吸收材料，即碳纖維管件，而能利用微波進行加熱，並設置一移動平台，使模具內之工作管件均勻受熱，其具有快速加熱、溫度分布均勻、均勻塑型及脫模時間短之成效，能確實節省碳纖維管件塑型的時間，更有效提升整體效能，當符合發明專利要件，爰依法提出專利申請。 In summary, the present invention develops a mold coated with high microwave absorbing material, that is, carbon fiber pipe, which can be heated by microwaves, and a mobile platform is provided to uniformly heat the working pipe in the mold, which has rapid heating and temperature distribution. The effects of uniform, uniform molding and short demolding time can indeed save the molding time of carbon fiber pipe fittings, and effectively improve the overall efficiency. When it meets the requirements of the patent for invention, it submits a patent application according to law.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107141299A TWI678270B (en) | 2018-11-20 | 2018-11-20 | Microwave shaping device for pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107141299A TWI678270B (en) | 2018-11-20 | 2018-11-20 | Microwave shaping device for pipe fittings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TWI678270B true TWI678270B (en) | 2019-12-01 |
| TW202019652A TW202019652A (en) | 2020-06-01 |
Family
ID=69582629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW107141299A TWI678270B (en) | 2018-11-20 | 2018-11-20 | Microwave shaping device for pipe fittings |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI678270B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080157444A1 (en) * | 2006-12-11 | 2008-07-03 | Cook Incorporated | Method of making a fiber-reinforced medical balloon |
| TW200920576A (en) * | 2007-11-02 | 2009-05-16 | Meng-Kao Yeh | A fast curing process for the carbon-nanocomposites |
| CN103192536A (en) * | 2013-03-26 | 2013-07-10 | 南京航空航天大学 | Microwave high-pressure intermittent curing method for fiber-reinforced resin base composite material and die |
| CN104494027A (en) * | 2014-12-17 | 2015-04-08 | 南京航空航天大学 | Double-vacuum bag microwave coagulation method for carbon fiber composite material part |
| CN104760302A (en) * | 2015-03-19 | 2015-07-08 | 南京航空航天大学 | Method of solidifying composite material with wave-absorbing material mould through microwave heating |
| CN106273536A (en) * | 2016-08-16 | 2017-01-04 | 中国商用飞机有限责任公司 | The microwave curing manufacturing process of carbon fiber/epoxy resin composite material and laminate thereof |
| TWM576954U (en) * | 2018-11-20 | 2019-04-21 | 沛承節能科技有限公司 | Microwave shaping device for tubes |
-
2018
- 2018-11-20 TW TW107141299A patent/TWI678270B/en not_active IP Right Cessation
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080157444A1 (en) * | 2006-12-11 | 2008-07-03 | Cook Incorporated | Method of making a fiber-reinforced medical balloon |
| TW200920576A (en) * | 2007-11-02 | 2009-05-16 | Meng-Kao Yeh | A fast curing process for the carbon-nanocomposites |
| CN103192536A (en) * | 2013-03-26 | 2013-07-10 | 南京航空航天大学 | Microwave high-pressure intermittent curing method for fiber-reinforced resin base composite material and die |
| CN104494027A (en) * | 2014-12-17 | 2015-04-08 | 南京航空航天大学 | Double-vacuum bag microwave coagulation method for carbon fiber composite material part |
| CN104760302A (en) * | 2015-03-19 | 2015-07-08 | 南京航空航天大学 | Method of solidifying composite material with wave-absorbing material mould through microwave heating |
| CN106273536A (en) * | 2016-08-16 | 2017-01-04 | 中国商用飞机有限责任公司 | The microwave curing manufacturing process of carbon fiber/epoxy resin composite material and laminate thereof |
| TWM576954U (en) * | 2018-11-20 | 2019-04-21 | 沛承節能科技有限公司 | Microwave shaping device for tubes |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202019652A (en) | 2020-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103587124B (en) | Carbon fiber composite material rectangular hollow pipe for mechanical arm manufacture method | |
| CN104290336A (en) | Method for forming J-shaped beam structure composite workpiece by open type soft tooling | |
| US8771823B2 (en) | Thermoplastic part, tool and method for the manufacturing thereof | |
| US20110198013A1 (en) | Mould for manufacturing a composite part including at least one fibre reinforced matrix | |
| JP6483114B2 (en) | Continuous production method of sandwich-shaped profile with foam core and profile filled with hard foam | |
| CA2879927C (en) | Novel shaping process for pmi foam materials and/or composite components produced therefrom | |
| CN104589670B (en) | A kind of gas path design method of composite cavity structure air bag shaping | |
| JP2014504218A5 (en) | ||
| CN206242524U (en) | The device of fibre reinforced composites shaped article is manufactured using stamping mold | |
| WO2018133177A1 (en) | Application of hsm process in wing moulding and method for moulding wing | |
| TWM576954U (en) | Microwave shaping device for tubes | |
| TW201533109A (en) | One-shot production of composites | |
| CN109483910A (en) | A kind of composite material vessel dry method winding, molding method | |
| CN110815854A (en) | Manufacturing method and application of flexible tool for molding longitudinal and transverse T-shaped reinforcing rib workpieces | |
| TWI678270B (en) | Microwave shaping device for pipe fittings | |
| CN107214975B (en) | A kind of simulation coating rapid shaping wet process mould pressing process | |
| JP6040547B2 (en) | Manufacturing method of fiber reinforced plastic | |
| US8309009B2 (en) | Thermoplastics forming process for molding articles with complex shapes | |
| CN109866436A (en) | A kind of manufacturing method of carbon fiber prepregs winding bicycle rim | |
| CA2593519A1 (en) | Novel thermoplastic part, tool and method for the manufacturing thereof | |
| CN110884168B (en) | Non-autoclave liquid forming device | |
| CN104494165A (en) | Semi-soft die used for assisting racing boat moulding and one shot forming technology for racing boat | |
| CN116080743A (en) | Carbon fiber steering wheel and manufacturing method thereof | |
| JP2016179598A (en) | Method for molding molded body formed of fiber-reinforced thermoplastic resin | |
| CN205818400U (en) | PVC wood plastic sheet metal forming extrusion die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |