CN110744837A - 氢能汽车复合材料车身维修的方法 - Google Patents

氢能汽车复合材料车身维修的方法 Download PDF

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CN110744837A
CN110744837A CN201910878034.3A CN201910878034A CN110744837A CN 110744837 A CN110744837 A CN 110744837A CN 201910878034 A CN201910878034 A CN 201910878034A CN 110744837 A CN110744837 A CN 110744837A
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microwave
composite material
automobile
adhesive
damaged area
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陈东
郝义国
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Wuhan Grove Hydrogen Automobile Co Ltd
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Wuhan Grove Hydrogen Automobile Co Ltd
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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
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
    • B29C73/04—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D using preformed elements
    • B29C73/10—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D using preformed elements using patches sealing on the surface of the article
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • 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
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
    • B29C73/24—Apparatus or accessories not otherwise provided for
    • B29C73/30—Apparatus or accessories not otherwise provided for for local pressing or local heating
    • B29C73/34—Apparatus or accessories not otherwise provided for for local pressing or local heating for local heating
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0855—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using microwave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3055—Cars

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)

Abstract

本发明提供了氢能汽车复合材料车身维修的方法，针对不同的损伤本发明提供了相应的维修方式，注胶法针对的是复合材料的分层或脱胶损伤；外搭接补片法针对的是复合材料的分层、缺口、破孔、断裂等损伤；嵌入式补片法针对的是复合材料的分层、缺口、破孔、断裂且具有维修操作空间的损伤。上述三种方法都采用了微波固化，即通过微波加热固化胶黏剂或者预浸料补片来进行胶结。本发明提供的微波固化维修方法便于操作、加热均匀且很大程度上节约维修成本。

Description

氢能汽车复合材料车身维修的方法
技术领域
本发明涉及汽车维修领域，尤其涉及氢能汽车复合材料车身维修的方法。
背景技术
随着汽车的普及，人们越来越注重选择重量轻、强度高的车身材料，复合材料(碳纤维复合材料或玻璃纤维复合材料)就是其中的一种。而当汽车发生车身碰撞事故后，会在车身局部发生分层、缺口、破孔、断裂和胶结区脱胶等形式的损伤，为了提高汽车的安全，必须对这些损伤进行修复。传统的板件材料可以通过“砸拉焊补”的方法来进行维修，而复合材料的延展性低，通常只能通过局部或整体更换来维修，也在很大程度上增加了维修成本。同时，传统胶黏剂和预浸料都为加热加温固化，热量是从外向内传导，由此在材料内部形成温度梯度，容易产生热应力，影响粘接质量；同时固化时间较长，耗能较大。
发明内容
有鉴于此，本发明提供了成本低、操作简单、加热均匀的复合材料车身维修方法。
本发明提供一种氢能汽车复合材料车身维修的方法，其特征在于，包括以下步骤：
S1：清理车身上的损伤区域；
S2：对于分层脱胶和胶结区脱胶的损伤区域，将微波胶黏剂注入损伤区域，使其自身胶结；对于分层、缺口、破孔、断裂的损伤区域，先制作一块面积比损伤区域面积大的复合材料层合板，然后将复合材料层合板覆盖在损伤区域的表面，利用微波胶黏剂胶结；对于分层、缺口、破孔、断裂，且具有维修操作空间的损伤，先挖去损伤区域形成斜坡或台阶，再将切割好的斜坡或台阶形状的预浸料补片胶结在损伤区域；
S3：采用便携式手持微波设备加热固化微波胶黏剂或预浸料补片。
优选地，所述便携式手持微波设备微波频率为2.45GHz，微波加热功率为200W。
优选地，所述微波胶黏剂的加热固化时间为4分钟。
优选地，所述预浸料补片的加热固化时间为10分钟。
优选地，所述微波胶黏剂和预浸料补片的材料均为环氧树脂。
本发明提供的技术方案带来的有益效果是：相对于加热固化，可实现均匀加热，加热时间短；同时减少了传统复合材料车身维修的更换需求，降低了维修成本。
附图说明
图1是本发明氢能汽车复合材料车身维修的方法中外搭接补片法示意图；
图2是本发明氢能汽车复合材料车身维修的方法中嵌入式补片法示意图；
图3是本发明中便携式手持微波设备固化预浸料补片示意图。
附图标记：1-受损结构A；2-层合板补片；3-胶层；4-受损结构B；5-预浸料补片；6-便携式手持微波设备；7-微波施加器；8-预浸料补片；9-损伤部位。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地描述。
本发明的实施例提供的氢能汽车复合材料车身维修的方法如下：
对于复合材料车身的分层脱胶和胶结区脱胶进行维修，具体维修步骤为：
S101：用干净的抹布或者砂纸清理分层脱胶或胶结区脱胶的区域；
S102：将微波胶黏剂注入上述分层或胶结区脱胶的区域；
S103：利用便携式手持微波设备6对注入微波胶黏剂的地方进行加热固化，加热时间为4分钟。
如图1和图3所示，对于复合材料车身的分层、缺口、破孔、断裂等损伤进行维修，具体维修步骤为：
S201：用干净的抹布或者砂纸清理受损结构A1的表面；
S202：将与被维修部件相同的复合材料层合板补片2，通过微波胶黏剂与受损结构A1胶结，形成胶层3；
S203：利用便携式手持微波设备6对胶层3进行加热固化，加热时间为4分钟。
如图2和图3所示，对于分层、缺口、破孔、断裂，且具有维修操作空间的损伤进行维修，具体维修步骤为：
S301：用干净的抹布或者砂纸清理受损结构B4的表面；
S302：将受损结构B4损伤的地方挖掉，形成斜坡或台阶形状的损伤部位9，再将切割好的斜坡或台阶形状的预浸料补片5与损伤部位9胶结；
S303：利用便携式手持微波设备6设置好参数，微波施加器7对预浸料补片5进行加热固化，加热时间为10分钟。
上述三种维修方式都采用微波加热固化的方法，手持微波设备6的微波频率为2.45GHz，微波加热功率为200W，维修步骤中采用的微波胶黏剂和预浸料补片均由环氧树脂制成。相对于传统的加热固化，微波固化可以实现均匀加热、快速固化。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (5)

1.一种氢能汽车复合材料车身维修的方法，其特征在于，包括以下步骤：
S1：清理车身上的损伤区域；
S2：对于分层脱胶和胶结区脱胶的损伤区域，将微波胶黏剂注入损伤区域，使其自身胶结；对于分层、缺口、破孔、断裂的损伤区域，先制作一块面积比损伤区域面积大的复合材料层合板，然后将复合材料层合板覆盖在损伤区域的表面，利用微波胶黏剂胶结；对于分层、缺口、破孔、断裂，且具有维修操作空间的损伤，先挖去损伤区域形成斜坡或台阶，再将切割好的斜坡或台阶形状的预浸料补片胶结在损伤区域；
S3：采用便携式手持微波设备加热固化微波胶黏剂或预浸料补片。
2.根据权利要求1所述的氢能汽车复合材料车身维修的方法，其特征在于，所述便携式手持微波设备微波频率为2.45GHz，微波加热功率为200W。
3.根据权利要求1所述的氢能汽车复合材料车身维修的方法，其特征在于，所述微波胶黏剂的加热固化时间为4分钟。
4.根据权利要求1所述的氢能汽车复合材料车身维修的方法，其特征在于，所述预浸料补片的加热固化时间为10分钟。
5.根据权利要求1所述的氢能汽车复合材料车身维修的方法，其特征在于，所述微波胶黏剂和预浸料补片的材料均为环氧树脂。
CN201910878034.3A 2019-09-17 2019-09-17 氢能汽车复合材料车身维修的方法 Pending CN110744837A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115837761A (zh) * 2022-11-23 2023-03-24 昆明理工大学 一种用于现场修复碳纤维复合材料的微波加热固化装置

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CN101646276A (zh) * 2009-09-02 2010-02-10 中国人民解放军装甲兵工程学院 微波快速修复装置
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115837761A (zh) * 2022-11-23 2023-03-24 昆明理工大学 一种用于现场修复碳纤维复合材料的微波加热固化装置

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Application publication date: 20200204