CN111361262A - 一种汽车消声器用耐高温隔热板及其制备方法 - Google Patents

一种汽车消声器用耐高温隔热板及其制备方法 Download PDF

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CN111361262A
CN111361262A CN202010134874.1A CN202010134874A CN111361262A CN 111361262 A CN111361262 A CN 111361262A CN 202010134874 A CN202010134874 A CN 202010134874A CN 111361262 A CN111361262 A CN 111361262A
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parts
coating
heat
temperature
layer
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周峰
王晔群
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Shanghai Baoshan Continental Auto Parts Co ltd
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Shanghai Baoshan Continental Auto Parts Co ltd
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Abstract

本发明属于汽车配件制备工艺技术领域，具体公开了一种汽车消声器用耐高温隔热板及其制备方法，包括外涂层、外基体、保温隔热层、内基体以及内涂层，所述外基体附接于保温隔热层的上表面，内基体附接于保温隔热层的下表面，外涂层涂覆于外基体的上表面，内涂层涂覆于内基体的下表面，所述外涂层、外基体、保温隔热层、内基体以及内涂层之间模压成型；与现有技术相比，本发明通过浸涂和喷涂两种方式制备的隔热涂层，使得该隔热板的隔热效果更佳；再通过使用蜂孔板和发泡板材粘结复合制成的保温隔热层，更加提高了该隔热板的隔热性能。

Description

一种汽车消声器用耐高温隔热板及其制备方法
技术领域
本发明涉及汽车配件制备工艺技术领域，具体为一种汽车消声器用耐高温隔热板及其制备方法。
背景技术
消声器具有良好的发动机尾气降噪作用，被广泛应用于工程机械领域。但是由于发动机尾气温度较高，导致正常工作时的消声器壳体温度可达 500-600℃，消声器壳体的高温热辐射会对其周围的橡胶制品造成不利影响，如加速橡胶件的老化甚至碳化。因此，目前汽车行业在消声器部位安装隔热板，以达到隔热的作用，但现有的汽车消声器用隔热板隔热效果不好，结构强度不高。
为此，本发明提出一种汽车消声器用耐高温隔热板及其制备方法，以解决上述存在的问题。
发明内容
本发明的目的在于提供一种汽车消声器用耐高温隔热板及其制备方法，以解决上述背景技术中提出的问题。
为实现上述目的，本发明提供如下技术方案：一种汽车消声器用耐高温隔热板及其制备方法，包括外涂层、外基体、保温隔热层、内基体以及内涂层，所述外基体附接于保温隔热层的上表面，内基体附接于保温隔热层的下表面，外涂层涂覆于外基体的上表面，内涂层涂覆于内基体的下表面，所述外涂层、外基体、保温隔热层、内基体以及内涂层之间模压成型。
作为本发明一种优选的技术方案，所述外涂层和内涂层包括浸涂层和喷涂层，所述浸涂层是由如下重量份原料组成：20-50份有机硅树脂、30-40份改性碳化硅粉、15-20份纳米碳酸钙、15-20份聚乙烯醇、1-5份钼粉、2-4 份分散剂和去离子水；所述喷涂层是由如下重量份原料组成：20-35份二苯乙烯基苯酚聚氧乙烯醚、10-15份笼型倍半硅氧烷、4-7份纳米四氮化三硅和2-5 份硅烷偶联剂KH792。
作为本发明一种优选的技术方案，所述浸涂层的制备方法包括以下步骤：
S1、按重量份称取有机硅树脂、改性碳化硅粉、纳米碳酸钙、聚乙烯醇、钼粉、分散剂和去离子水；
S2、将上述重量份的有机硅树脂、改性碳化硅粉、纳米碳酸钙和钼粉置于高速球磨机中球磨混料1-2h左右，得混合物；
S3、向步骤S2中的混合物内加入上述重量份的聚乙烯醇、分散剂和去离子水，再用高速分散机分散，充分混合均匀后，得到浸涂层原料，备用。
作为本发明一种优选的技术方案，所述喷涂层的制备方法包括以下步骤：
S1、按重量份称取二苯乙烯基苯酚聚氧乙烯醚、笼型倍半硅氧烷、纳米四氮化三硅和硅烷偶联剂KH792；
S2、将上述重量份的原料，即二苯乙烯基苯酚聚氧乙烯醚、笼型倍半硅氧烷、纳米四氮化三硅和硅烷偶联剂KH792搅拌混合均匀，得混合物；
S3、将混合物置于高速球磨机中球磨，使细度小于5μm，得到喷涂层原料，备用。
作为本发明一种优选的技术方案，所述外基体和内基体均是由多层铝膜压制而成；且外基体和内基体的具体制备方法包括以下步骤：
S1、将铝膜按隔热板外形规格的尺寸要求放料；
S2、将放料后的待成型铝膜通过滚花加工装置进行预压，经上下滚花辊轴扭向循环转动辗压形成折射面；
S3、在步骤S2预压过的铝膜上层按照隔热板外形规格的尺寸进行二次布料，并采用步骤S2中的预压方法再次进行预压；
S4、重复步骤S3的动作，直至多层铝膜全部预压完成；
S5、将形成折射面的多层铝膜通过冲压设备压制成型，制成外基体或者内基体。
作为本发明一种优选的技术方案，所述保温隔热层是由蜂孔板和发泡板材通过发泡工艺粘结复合制成，所述蜂孔板为PVC、聚乙烯或聚丙乙烯塑料等材料制成，且蜂孔板上设有蜂孔，该蜂孔为圆孔、三角孔或菱形孔；所述发泡板材是由硬质聚氨酯发泡、酚醛发泡或挤塑泡沫板材料制成。
一种汽车消声器用耐高温隔热板的制备方法，包括以下几个步骤：
S1、在保温隔热层的上下两表面采用金属塑料复合胶将内基体和外基体经加温相互粘结复合，得到复合材料；
S2、将上述配置的浸涂层原料置入不锈钢槽中，然后将步骤S1中的复合材料放置在该不锈钢槽中，常温下浸润30～90min，之后，进行加压加温，压力达到100～200Mpa(比如150Mpa)、温度达到180-200℃比如150Mpa(比如190℃)时开始固化，制成浸涂层；
S3、将上述制成的喷涂层原料喷涂于浸涂层的外表面，在200-300℃中烘烤10-30min，干燥后形成喷涂层，至此得到耐高温隔热板。
与现有技术相比，本发明的有益效果是：本发明一种汽车消声器用耐高温隔热板及其制备方法，采用机硅树脂、改性碳化硅粉、纳米碳酸钙、聚乙烯醇、钼粉、分散剂和去离子水制备浸涂层原料，再采用二苯乙烯基苯酚聚氧乙烯醚、笼型倍半硅氧烷、纳米四氮化三硅和硅烷偶联剂KH792制备喷涂层原料，之后将两者通过浸涂和喷涂两种方式涂覆在保温隔热层3上，使得该隔热板的隔热效果更佳；
此外，再通过使用蜂孔板和发泡板材粘结复合制成的保温隔热层3，更加提高了该隔热板的隔热性能。
附图说明
图1为本发明整体结构示意图。
图中标号：1、外涂层；2、外基体；3、保温隔热层；4、内基体；5、内涂层。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“竖直”、“上”、“下”、“水平”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，还需要说明的是，除非另有明确的规定和限定，术语“设置”、“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
请参阅图1，本发明提供一种技术方案：一种汽车消声器用耐高温隔热板及其制备方法，包括外涂层1、外基体2、保温隔热层3、内基体4以及内涂层5，所述外基体2附接于保温隔热层3的上表面，内基体4附接于保温隔热层3的下表面，外涂层1涂覆于外基体2的上表面，内涂层5涂覆于内基体4 的下表面，所述外涂层1、外基体2、保温隔热层3、内基体4以及内涂层5 之间模压成型。
进一步的，所述外涂层1和内涂层5包括浸涂层和喷涂层，所述浸涂层是由如下重量份原料组成：20-50份有机硅树脂、30-40份改性碳化硅粉、15-20 份纳米碳酸钙、15-20份聚乙烯醇、1-5份钼粉、2-4份分散剂和去离子水；所述喷涂层是由如下重量份原料组成：20-35份二苯乙烯基苯酚聚氧乙烯醚、 10-15份笼型倍半硅氧烷、4-7份纳米四氮化三硅和2-5份硅烷偶联剂KH792。
进一步的，所述浸涂层的制备方法包括以下步骤：
S1、按重量份称取有机硅树脂、改性碳化硅粉、纳米碳酸钙、聚乙烯醇、钼粉、分散剂和去离子水；
S2、将上述重量份的有机硅树脂、改性碳化硅粉、纳米碳酸钙和钼粉置于高速球磨机中球磨混料1-2h左右，得混合物；
S3、向步骤S2中的混合物内加入上述重量份的聚乙烯醇、分散剂和去离子水，再用高速分散机分散，充分混合均匀后，得到浸涂层原料，备用。
进一步的，所述喷涂层的制备方法包括以下步骤：
S1、按重量份称取二苯乙烯基苯酚聚氧乙烯醚、笼型倍半硅氧烷、纳米四氮化三硅和硅烷偶联剂KH792；
S2、将上述重量份的原料，即二苯乙烯基苯酚聚氧乙烯醚、笼型倍半硅氧烷、纳米四氮化三硅和硅烷偶联剂KH792搅拌混合均匀，得混合物；
S3、将混合物置于高速球磨机中球磨，使细度小于5μm，得到喷涂层原料，备用。
进一步的，所述外基体2和内基体4均是由多层铝膜压制而成；且外基体2和内基体4的具体制备方法包括以下步骤：
S1、将铝膜按隔热板外形规格的尺寸要求放料；
S2、将放料后的待成型铝膜通过滚花加工装置进行预压，经上下滚花辊轴扭向循环转动辗压形成折射面；
S3、在步骤S2预压过的铝膜上层按照隔热板外形规格的尺寸进行二次布料，并采用步骤S2中的预压方法再次进行预压；
S4、重复步骤S3的动作，直至多层铝膜全部预压完成；
S5、将形成折射面的多层铝膜通过冲压设备压制成型，制成外基体2或者内基体4。
外基体2和内基体4，所述保温隔热层3是由蜂孔板和发泡板材通过发泡工艺粘结复合制成，所述蜂孔板为PVC、聚乙烯或聚丙乙烯塑料等材料制成，且蜂孔板上设有蜂孔，该蜂孔为圆孔、三角孔或菱形孔；所述发泡板材是由硬质聚氨酯发泡、酚醛发泡或挤塑泡沫板材料制成。
一种汽车消声器用耐高温隔热板的制备方法，包括以下几个步骤：
S1、在保温隔热层3的上下两表面采用金属塑料复合胶将内基体4和外基体2经加温相互粘结复合，得到复合材料；
S2、将上述配置的浸涂层原料置入一不锈钢槽中，然后将步骤S1中的复合材料放置在该不锈钢槽中，常温下浸润30～90min，之后，进行加压加温，压力达到100～200Mpa(比如150Mpa)、温度达到180-200℃比如150Mpa(比如190℃)时开始固化，制成浸涂层；
S3、将上述制成的喷涂层原料喷涂于浸涂层的外表面，在200-300℃中烘烤10-30min，干燥后形成喷涂层，至此得到耐高温隔热板。
实验例：
实验对象：选取重量一致的现有汽车消声器用隔热板与本发明提出的汽车消声器用耐高温隔热板；
实验方法：
抗压强度试验：对现有汽车消声器用隔热板与本发明提出的汽车消声器用耐高温隔热板通过GB/T 529-1999标准采用抗压强度测试机进行抗压强度测试；
隔热试验：对现有汽车消声器用隔热板与本发明提出的汽车消声器用耐高温隔热板采用ASTM C533-09标准进行隔热效果检测；
具体结果如下：
经相同的实验方法下所得的数据，本发明的汽车消声器用耐高温隔热板的隔热效果更好，阻燃温度更高，抗压强度更好。
本发明技术效果主要体现在以下方面：采用机硅树脂、改性碳化硅粉、纳米碳酸钙、聚乙烯醇、钼粉、分散剂和去离子水制备浸涂层原料，再采用二苯乙烯基苯酚聚氧乙烯醚、笼型倍半硅氧烷、纳米四氮化三硅和硅烷偶联剂KH792制备喷涂层原料，之后将两者通过浸涂和喷涂两种方式涂覆在保温隔热层3上，使得该隔热板的隔热效果更佳；
此外，再通过使用蜂孔板和发泡板材粘结复合制成的保温隔热层3，更加提高了该隔热板的隔热性能。
综上所述：本发明一种汽车消声器用耐高温隔热板及其制备方法，本方法在特征提取方面，通过卷积神经网络来提取跟踪目标的深度特征，获得目标的深层次表达，具有更高的目标跟踪精度和更强的鲁棒性。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。

Claims (7)

1.一种汽车消声器用耐高温隔热板，其特征在于，包括外涂层(1)、外基体(2)、保温隔热层(3)、内基体(4)以及内涂层(5)，所述外基体(2)附接于保温隔热层(3)的上表面，内基体(4)附接于保温隔热层(3)的下表面，外涂层(1)涂覆于外基体(2)的上表面，内涂层(5)涂覆于内基体(4)的下表面，所述外涂层(1)、外基体(2)、保温隔热层(3)、内基体(4)以及内涂层(5)之间模压成型。
2.根据权利要求1所述的一种汽车消声器用耐高温隔热板，其特征在于，所述外涂层(1)和内涂层(5)包括浸涂层和喷涂层，所述浸涂层是由如下重量份原料组成：20-50份有机硅树脂、30-40份改性碳化硅粉、15-20份纳米碳酸钙、15-20份聚乙烯醇、1-5份钼粉、2-4份分散剂和去离子水；所述喷涂层是由如下重量份原料组成：20-35份二苯乙烯基苯酚聚氧乙烯醚、10-15份笼型倍半硅氧烷、4-7份纳米四氮化三硅和2-5份硅烷偶联剂KH792。
3.根据权利要求2所述的一种汽车消声器用耐高温隔热板，其特征在于，所述浸涂层的制备方法包括以下步骤：
S1、按重量份称取有机硅树脂、改性碳化硅粉、纳米碳酸钙、聚乙烯醇、钼粉、分散剂和去离子水；
S2、将上述重量份的有机硅树脂、改性碳化硅粉、纳米碳酸钙和钼粉置于高速球磨机中球磨混料1-2h左右，得混合物；
S3、向步骤S2中的混合物内加入上述重量份的聚乙烯醇、分散剂和去离子水，再用高速分散机分散，充分混合均匀后，得到浸涂层原料，备用。
4.根据权利要求2所述的一种汽车消声器用耐高温隔热板，其特征在于，所述喷涂层的制备方法包括以下步骤：
S1、按重量份称取二苯乙烯基苯酚聚氧乙烯醚、笼型倍半硅氧烷、纳米四氮化三硅和硅烷偶联剂KH792；
S2、将上述重量份的原料，即二苯乙烯基苯酚聚氧乙烯醚、笼型倍半硅氧烷、纳米四氮化三硅和硅烷偶联剂KH792搅拌混合均匀，得混合物；
S3、将混合物置于高速球磨机中球磨，使细度小于5μm，得到喷涂层原料，备用。
5.根据权利要求1所述的一种汽车消声器用耐高温隔热板，其特征在于，所述外基体(2)和内基体(4)均是由多层铝膜压制而成；且外基体(2)和内基体(4)的具体制备方法包括以下步骤：
S1、将铝膜按隔热板外形规格的尺寸要求放料；
S2、将放料后的待成型铝膜通过滚花加工装置进行预压，经上下滚花辊轴扭向循环转动辗压形成折射面；
S3、在步骤S2预压过的铝膜上层按照隔热板外形规格的尺寸进行二次布料，并采用步骤S2中的预压方法再次进行预压；
S4、重复步骤S3的动作，直至多层铝膜全部预压完成；
S5、将形成折射面的多层铝膜通过冲压设备压制成型，制成外基体(2)或者内基体(4)。
6.根据权利要求1所述的一种汽车消声器用耐高温隔热板，其特征在于，所述保温隔热层(3)是由蜂孔板和发泡板材通过发泡工艺粘结复合制成，所述蜂孔板为PVC、聚乙烯或聚丙乙烯塑料等材料制成，且蜂孔板上设有蜂孔，该蜂孔为圆孔、三角孔或菱形孔；所述发泡板材是由硬质聚氨酯发泡、酚醛发泡或挤塑泡沫板材料制成。
7.根据权利要求1所述的一种汽车消声器用耐高温隔热板的制备方法，其特征在于，包括以下几个步骤：
S1、在保温隔热层(3)的上下两表面采用金属塑料复合胶将内基体(4)和外基体(2)经加温相互粘结复合，得到复合材料；
S2、将上述配置的浸涂层原料置入一不锈钢槽中，然后将步骤S1中的复合材料放置在该不锈钢槽中，常温下浸润30～90min，之后，进行加压加温，压力达到100～200Mpa、温度达到180-200℃时开始固化，制成浸涂层；
S3、将上述制成的喷涂层原料喷涂于浸涂层的外表面，在200-300℃中烘烤10-30min，干燥后形成喷涂层，至此得到耐高温隔热板。
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