WO2020252758A1 - 复合轮圈制程 - Google Patents

复合轮圈制程 Download PDF

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Publication number
WO2020252758A1
WO2020252758A1 PCT/CN2019/092174 CN2019092174W WO2020252758A1 WO 2020252758 A1 WO2020252758 A1 WO 2020252758A1 CN 2019092174 W CN2019092174 W CN 2019092174W WO 2020252758 A1 WO2020252758 A1 WO 2020252758A1
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WIPO (PCT)
Prior art keywords
composite
rim
thermal expansion
air bag
manufacturing process
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PCT/CN2019/092174
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English (en)
French (fr)
Inventor
蔡明仁
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龙台工业股份有限公司
蔡明仁
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Priority to PCT/CN2019/092174 priority Critical patent/WO2020252758A1/zh
Publication of WO2020252758A1 publication Critical patent/WO2020252758A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/18—Filling preformed cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B5/00—Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material

Definitions

  • the invention relates to a composite wheel rim manufacturing process.
  • Known composite wheel manufacturing processes such as the traditional internal pressure process, need to place nylon/latex/silicone airbags in the composite material (such as carbon fiber) prepreg.
  • the airbags need to reserve (or add) air blowing ports, which are cured by heating
  • the air bag is inflated to cause the internal and external pressure difference, the excess resin is squeezed out, and the composite prepreg is pushed toward the mold with the internal pressure to increase the gap between the composite prepregs. Tightly joined.
  • the air pressure needs to be controlled within a reasonable range of internal and external pressure difference.
  • Too low air pressure will result in excessive resin content in the final product, and reduce the bonding density between each layer of composite prepreg, reducing strength and performance; If the air pressure is too high, the resin will flow out too much, and the resin content of the final product will be too low, which will also reduce the strength and performance.
  • the disadvantage of the known composite rim manufacturing process is that the setting of the air outlet requires manual work, and the yield rate depends on the experience and fineness of the personnel. Once the process of setting the air outlet is flawed, the air pressure may be insufficient. Or the product is scrapped due to air leak
  • the main purpose of the present invention is to provide a composite rim manufacturing process with high precision, good yield and high structural strength of the composite rim.
  • the present invention provides a composite rim manufacturing process, including the following steps: covering a composite material on the outer surface of an air bag to form a half-shaped rim, wherein the air bag is a completely closed loop tube and contains the inside There is a thermal expansion; placing the semi-formed rim in a mold; heating the thermal expansion to expand the air bag and solidify the semi-formed rim.
  • the composite material is a carbon fiber composite material.
  • the pressure at which the thermally expandable material expands and expands the air bag is 1 to 20 kilograms per square centimeter (kg/cm 2 ).
  • the thermal expansion product generates gas during the expansion process.
  • the thermal expansion material is ammonium carbonate.
  • the composite material is a carbon fiber composite material; after the expansion process of the thermal expansion, the air bag includes part of the solid thermal expansion and the generated gas; after the semi-molded rim is solidified and formed, another It includes a step of removing the air bag and the thermal expansion object.
  • volume change of the air bag expanded by the thermal expansion material is 15%.
  • the thermal expansion material is wax.
  • the composite material is a carbon fiber composite material; after the semi-molded rim is solidified and formed, a step of removing the air bag and the thermal expansion object is further included.
  • the thermal expansion material is gas
  • the present invention provides a composite rim manufacturing process, which produces composite rims with high precision, good yield, and high structural strength of the composite rim.
  • Fig. 1 is a schematic diagram of a heat-expandable object inside a closed air bag of the present invention.
  • Fig. 2 is a schematic diagram of the annular thermally expandable product of the present invention.
  • 3 and 4 are schematic diagrams of the expansion and expansion of the air bag by the thermally expandable material of the present invention.
  • 5 and 6 are schematic diagrams of a half-shaped rim formed by the mold of the present invention.
  • Fig. 7 is a schematic diagram of forming a tire groove in the present invention.
  • FIGS. 8 and 9 are schematic diagrams of the composite wheel rim completed by removing the air bag according to the present invention.
  • FIGS 10 and 11 are schematic diagrams of another embodiment of the expansion and expansion air bag of the thermally expandable material of the present invention.
  • the composite rim manufacturing process of the present invention includes the following steps: a composite material 10 is covered on the outer surface of an air bag 20 to form a half-shaped rim 30, wherein The air bag 20 is a completely closed loop tube and contains a thermal expansion 40 inside; the semi-formed rim 30 is placed in a mold 50; the thermal expansion 40 is heated to expand the thermal expansion 40 to expand the air bag 20 And the semi-molded rim 30 is solidified and molded. Thereby, the air bag 20 can be accurately provided to stretch the air bag 20, with high precision, good yield, and the composite material 10 is tightly combined and has high structural strength.
  • the composite material 10 is a carbon fiber composite material, or other types of reinforced fiber composite materials.
  • the thermal expansion material 40 is wax, and the volume change of the thermal expansion material 40 during expansion and expansion of the air bag is about 15%.
  • a step of removing the air bag 20 and the thermal expansion 40 is further included (see FIG. 9).
  • the outer ring portion of the semi-molded rim 30 can be additionally removed to form a tire groove 31 for mounting a tire.
  • the thermally expandable material 40a generates gas 41 during the expansion process.
  • the pressure at which the thermal expansion material 40a expands and stretches the air bag 20 is preferably 1 to 20 kilograms per square centimeter (kg/cm 2 ).
  • the thermally expanded product 40a is, for example, ammonium carbonate.
  • the air bag 20 includes a part of the solid thermal expansion product 40a and the generated gas 41.
  • the thermal expansion product 40a can be completely decomposed. In the case where the thermal expansion product 40a is ammonium carbonate, ammonium carbonate will decompose into carbon dioxide, ammonia and water at about 60°C when heated.
  • ammonium carbonate can decompose about 0.25 grams of carbon dioxide, and 1 gram of carbon dioxide is about For 0.5 liter of gas, the proportion of ammonium carbonate added can be adjusted according to the reserved space of the mold 50 and the set expansion rate.
  • the thermal expansion material contained in the gas bag can be a gas initially, such as an inert gas.
  • the expansion volume of the gas has a larger range, and the inert gas is more stable and safer, but other suitable gas.
  • the thermally expandable material contained in the air bag can also be initially liquid, and liquid expansion can also provide extremely accurate, sufficient volume change, and efficient expansion effect. The thermal expansion of gas or liquid can be easily and quickly removed after solidifying and forming the semi-formed rim.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Moulding By Coating Moulds (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

一种复合轮圈制程，包括以下步骤：覆设一复合材料（10）于一气袋（20）的外表面形成一半成型轮圈（30），其中该气袋（20）为完全封闭的环管状且内部容设有一热膨胀物（40）；将该半成型轮圈（30）置入一模具（50）中；加热该热膨胀物（40）使该热膨胀物（40）膨胀撑张该气袋（20）并固化成型该半成型轮圈（30）。

Description

复合轮圈制程 技术领域
本发明有关于一种复合轮圈制程。
背景技术
已知复合轮圈制程，例如传统内压法制程，需要在复合材(如碳纤维)预浸布内放置尼龙/乳胶/硅胶气袋，气袋需预留(或增加)吹气口，在加热固化树脂的过程中，对气袋进行充气，以造成内外压力差，把多余的树脂挤出，并以内压往外将复合材预浸布向模具推挤，增加各层复合材预浸布之间的紧密接合。在固化过程中，气压需要被控制在合理的内外压差范围，气压太低则会造成最终产品的树脂含量过高，并且降低各层复合材预浸布之间接合密度，降低强度及性能；气压太高，则会让树脂流出过多，造成最终产品的树脂含量过低，同样会造成强度及性能降低。
已知复合轮圈制程的缺点为，设置吹气口需要人工作业，良率高低则依赖于人员的经验与手法细腻与否，一旦设置吹气口的过程有瑕疵，可能造成吹气的气压不足，或是漏气造成产品报废。
因此，有必要提供一种新颖且具有进步性的复合轮圈制程，以解决上述的问题。
发明内容
本发明的主要目的在于提供一种复合轮圈制程，精度高、良率佳、复合轮圈结构强度高。
为达成上述目的，本发明提供一种复合轮圈制程，包括以下步骤：覆设一复合材料于一气袋的外表面形成一半成型轮圈，其中该气袋为完全封闭的环管状且内部容设有一热膨胀物；将该半成型轮圈置入一模具中；加热该热膨胀物使该热膨胀物膨胀撑张该气袋并固化成型该半成型轮圈。
优选地，该复合材料为碳纤维复合材料。
更进一步地，该热膨胀物膨胀撑张该气袋的压力为每平方公分1至20公斤(kg/cm 2)。
其中，该热膨胀物在膨胀过程中产生气体。
优选地，该热膨胀物为碳酸铵。
更进一步地，该复合材料为碳纤维复合材料；在该热膨胀物膨胀过程后，该气袋内包括部分的固态的该热膨胀物及所产生的该气体；在固化成型该半成型轮圈后，另包括一移除该气袋及该热膨胀物的步骤。
更进一步地，该热膨胀物膨胀撑张该气袋的体积变化为15％。
优选地，该热膨胀物为腊。
更进一步地，该复合材料为碳纤维复合材料；在固化成型该半成型轮圈后，另包括一移除该气袋及该热膨胀物的步骤。
其中，该热膨胀物为气体。
本发明的有益效果在于：
本发明提供一种复合轮圈制程，该制程生产的复合轮圈精度高、良率佳、复合轮圈结构强度高。
附图说明
图1为本发明一封闭气袋内部容设有一热膨胀物的示意图。
图2为本发明环状的热膨胀物的示意图。
图3及4为本发明该热膨胀物膨胀撑张该气袋的示意图。
图5及6为本发明模具成型一半成型轮圈的示意图。
图7为本发明形成一胎槽的示意图。
图8及9为本发明移除该气袋完成复合轮圈的示意图。
图10及11为本发明热膨胀物膨胀撑张气袋的另一实施例示意图。
附图标记
10：复合材料；20：气袋；30：半成型轮圈；31：胎槽；40、40a：热膨胀物；41：气体；50：模具。
具体实施方式
以下仅以实施例说明本发明可能的实施态样，然并非用以限制本发明所欲保护的范畴，合先叙明。
请参考图1至9，其显示本发明的一较佳实施例，本发明的复合轮圈制程包括以下步骤：覆设一复合材料10于一气袋20的外表面形成一半成型轮圈30，其中该气袋20为完全封闭的环管状且内部容设有一热膨胀物40；将该半成型轮圈30置入一模具50中；加热该热膨胀物40使该热膨胀物40膨胀撑张该气袋20并固化成型该半成型轮圈30。借此，可精确提供撑张该气袋20，精度高、良率佳、该复合材料10紧密结合而结构强度高。
该复合材料10为碳纤维复合材料，亦可为其他类型的强化纤维复合材料。该热膨胀物40为腊，该热膨胀物40膨胀撑张该气袋的体积变化约为15％。较佳地，在固化成型该半成型轮圈30后，另包括一移除该气袋20及该热膨胀物40的步骤(如图9)。在本实施例中，在固化成型该半成型轮圈30后，可另移除该半成型轮圈30外环部分而形成一供安装轮胎的胎槽31。
在如图10及11所示的另一较佳实施例中，该热膨胀物40a在膨胀过程中产生气体41。该热膨胀物40a膨胀撑张该气袋20的压力较佳为每平方公分1至20公斤(kg/cm 2)。该热膨胀物40a例如为碳酸铵。在该热膨胀物40a膨胀过程后，该气袋20内包括部分的固态的该热膨胀物40a及所产生的该气体41，当然，若经过计算，该热膨胀物40a可全部分解。在该热膨胀物40a为碳酸铵的例子中，碳酸铵遇热，约在60℃时，分解为二氧化碳、氨和水，其中1克碳酸铵可分解约0.25克的二氧化碳，1克的二氧化碳约为0.5公升的气体，加入碳酸铵比例可依照模具50预留空间以及设定的膨胀率来做调配。
要说明的是，该气袋内所容设的该热膨胀物初始即可为气体，例如惰性气体，气体膨胀体积变化的范围较大，而惰性气体较安定、较安全，然亦可采用其他适当气体。可理解的是，该气袋内所容设的该热膨胀物初始亦可为液体，液体膨胀亦可提供极为精确、体积变化足、有效率的撑张效果。气体或液体的热膨胀物在固化成型该半成型轮圈后，亦较为方便快速移除。

Claims (10)

  1. 一种复合轮圈制程，其特征在于，包括以下步骤：
    覆设一复合材料于一气袋的外表面形成一半成型轮圈，其中该气袋为完全封闭的环管状且内部容设有一热膨胀物；
    将该半成型轮圈置入一模具中；
    加热该热膨胀物使该热膨胀物膨胀撑张该气袋并固化成型该半成型轮圈。
  2. 如权利要求1所述的复合轮圈制程，其特征在于，该复合材料为碳纤维复合材料。
  3. 如权利要求1所述的复合轮圈制程，其特征在于，该热膨胀物膨胀撑张该气袋的压力为每平方公分1至20公斤。
  4. 如权利要求3所述的复合轮圈制程，其特征在于，该热膨胀物在膨胀过程中产生气体。
  5. 如权利要求4所述的复合轮圈制程，其特征在于，该热膨胀物为碳酸铵。
  6. 如权利要求5所述的复合轮圈制程，其特征在于，该复合材料为碳纤维复合材料；在该热膨胀物膨胀过程后，该气袋内包括部分的固态的该热膨胀物及所产生的该气体；在固化成型该半成型轮圈后，另包括一移除该气袋及该热膨胀物的步骤。
  7. 如权利要求1所述的复合轮圈制程，其特征在于，该热膨胀物膨胀撑张该气袋的体积变化为15％。
  8. 如权利要求7所述的复合轮圈制程，其特征在于，该热膨胀物为腊。
  9. 如权利要求8所述的复合轮圈制程，其特征在于，该复合材料为碳纤维复合材料；在固化成型该半成型轮圈后，另包括一移除该气袋及该热膨胀物的步骤。
  10. 如权利要求1所述的复合轮圈制程，其特征在于，该热膨胀物为气体。
PCT/CN2019/092174 2019-06-21 2019-06-21 复合轮圈制程 WO2020252758A1 (zh)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1370693A (zh) * 2001-02-13 2002-09-25 坎培诺洛有限公司 制造自行车轮辋的方法、实施该方法的装置及制成的轮辋
DE102005039216A1 (de) * 2005-08-17 2007-02-22 Dt Swiss Ag Verfahren zur Herstellung einer Fahrradkomponente, sowie Fahrradkomponente
CN1970321A (zh) * 2005-11-22 2007-05-30 米其林技术公司 包括自充气腔室的漏气保用系统
CN101920563A (zh) * 2009-06-15 2010-12-22 胜捷复材科技股份有限公司 自行车轮圈制法
US20140103561A1 (en) * 2012-10-15 2014-04-17 Jiin-Biau Huang Method for molding composite material
CN105269840A (zh) * 2014-07-08 2016-01-27 莹信工业股份有限公司 复合材轮圈的制造方法与复合材轮圈
CN206856959U (zh) * 2017-06-21 2018-01-09 汤威 一种便携式防溺水安全装置及其佩戴设备
CN108656856A (zh) * 2018-06-07 2018-10-16 厦门新凯复材科技有限公司 一种自行车车圈及其生产方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1370693A (zh) * 2001-02-13 2002-09-25 坎培诺洛有限公司 制造自行车轮辋的方法、实施该方法的装置及制成的轮辋
DE102005039216A1 (de) * 2005-08-17 2007-02-22 Dt Swiss Ag Verfahren zur Herstellung einer Fahrradkomponente, sowie Fahrradkomponente
CN1970321A (zh) * 2005-11-22 2007-05-30 米其林技术公司 包括自充气腔室的漏气保用系统
CN101920563A (zh) * 2009-06-15 2010-12-22 胜捷复材科技股份有限公司 自行车轮圈制法
US20140103561A1 (en) * 2012-10-15 2014-04-17 Jiin-Biau Huang Method for molding composite material
CN105269840A (zh) * 2014-07-08 2016-01-27 莹信工业股份有限公司 复合材轮圈的制造方法与复合材轮圈
CN206856959U (zh) * 2017-06-21 2018-01-09 汤威 一种便携式防溺水安全装置及其佩戴设备
CN108656856A (zh) * 2018-06-07 2018-10-16 厦门新凯复材科技有限公司 一种自行车车圈及其生产方法

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