CN107084285A - 一种乙烯丙烯酸酯橡胶涡轮增压胶管及其制作方法 - Google Patents
一种乙烯丙烯酸酯橡胶涡轮增压胶管及其制作方法 Download PDFInfo
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Abstract
本发明公开了一种乙烯丙烯酸酯橡胶涡轮增压胶管及其制作方法。包括橡胶管,其特征在于:所述橡胶管由氟橡胶内层、乙烯丙烯酸酯橡胶中层、芳纶线层和乙烯丙烯酸酯橡胶外层组成,所述氟橡胶内层厚度为0.4 mm~1.0mm,所述乙烯丙烯酸酯橡胶中层厚度为1 mm~4mm,芳纶线层厚度为0.1 mm~2mm,乙烯丙烯酸酯橡胶外层厚度为1 mm~4mm。本发明具有以下有益效果:此种结构的氟橡胶与乙烯丙烯酸酯橡胶、乙烯丙烯酸酯橡胶涡轮增压胶管能够满足耐燃油、耐渗透、耐高温的使用要求,且具有较高的爆破压力,能够满足汽车发动机系统的使用要求,且胶管管壁层次之间的附着力≥3N/mm。
Description
技术领域
本发明涉及一种涡轮增压胶管及其制作方法,具体说是一种乙烯丙烯酸酯橡胶涡轮增压胶管及其制作方法。
背景技术
随着汽车排放标准的越来越严格,汽车制造商不仅要满足环保要求,同时又要满足客户的需求,保证足够的驾驶乐趣。涡轮增压器正好能满足降低排放并提高燃油经济性,同时又不会以失去驾驶乐趣为代价。涡轮增压器能够提供更好的燃油经济性,因为增压会给燃烧室提供更多的空气,使燃烧更彻底,排放更干净。在欧洲涡轮增压器已经占到了70%,在亚洲、美国也都在增长。涡轮增压器已经成为提高动力性能的主流方向。这就意味着既要求耐高温、又要求耐燃油的涡轮增压胶管的开发与研制势在必行。
汽车工业是国民经济支柱产业,近年来随着行业的蓬勃发展,涡轮增压器已经由竞赛用的跑车或方程式赛车普及到许多类型汽车上,涡轮增压器市场需求巨大。涡轮增压器胶管用于输送空气和废气,通常要承受180℃以上高温,起到连接、减震、降噪的作用,一旦损坏将会使增压器转速高、压比增大导致发动机工作粗暴等严重后果。由于耐高温的涡轮增压器都以硅橡胶为主,技术含量高,生产难度大、效率低,不适合连续挤出工艺。普通轿车也有采用氯丁橡胶涡轮增压胶管,但采用氯丁橡胶的最高耐温只能到120℃,而采用乙烯丙烯酸酯橡胶,最高温度能够到210℃,并且能与氟橡胶连续复合挤出,而且氟胶的耐燃油性能优异,故采用内胶为氟胶,外胶为乙烯丙烯酸酯橡胶的涡轮增压胶管更加适合温度要求越来越高的发动机系统。
发明内容
本发明所要解决的技术问题是提供一种含油氟橡胶与乙烯丙烯酸酯橡胶的涡轮增压胶管及其制作方法。
为解决上述技术问题,本发明的技术方案是:一种乙烯丙烯酸酯橡胶涡轮增压胶管,包括橡胶管,其特征在于:所述橡胶管由氟橡胶内层、乙烯丙烯酸酯橡胶中层、芳纶线层和乙烯丙烯酸酯橡胶外层组成,所述氟橡胶内层厚度为0.4 mm~1.0mm,所述乙烯丙烯酸酯橡胶中层厚度为1 mm~ 4mm,芳纶线层厚度为0.1 mm~2mm,乙烯丙烯酸酯橡胶外层厚度为1 mm~4mm。
本发明还提供了上述的制作方法,包括以下步骤:
1)管胚制造过程 氟橡胶内层与乙烯丙烯酸酯橡胶橡胶中层双复合挤出:氟橡胶内层控制挤出温度从机头到螺杆依次为90℃~70℃,80℃~60℃,70℃~50℃,60℃~40℃,70℃~50℃; 乙烯丙烯酸酯橡胶中层挤出温度从机头到螺杆依次为90℃~70℃,80℃~60℃,70℃~50℃,60℃~40℃,70℃~50℃;增强层为芳纶线;外胶挤出:挤出温度从机头到螺杆依次为90℃~70℃,80℃~60℃,70℃~50℃,60℃~40℃,70℃~50℃;
2)硫化成型过程: 采用两段硫化方法,一段硫化参数:硫化温度为150℃~180℃,硫化时间为5min~60min; 二段硫化参数:硫化温度为160℃~200℃,硫化时间为1h~8h。
由于采用了上述技术方案,一种乙烯丙烯酸酯橡胶涡轮增压胶管,本发明具有以下有益效果:此种结构的氟橡胶与乙烯丙烯酸酯橡胶、乙烯丙烯酸酯橡胶涡轮增压胶管能够满足耐燃油、耐渗透、耐高温的使用要求,且具有较高的爆破压力,能够满足汽车发动机系统的使用要求, 且胶管管壁层次之间的附着力≥3N/mm。
具体实施方式
下面结合具体实施例对本发明做进一步地说明。
图1为发明结构示意图。
图中:1、氟橡胶内层,2、乙烯丙烯酸酯橡胶中层,3、芳纶线层,4、乙烯丙烯酸酯橡胶外层,5、胶管。
实施例1
一种乙烯丙烯酸酯橡胶涡轮增压胶管,包括橡胶管,其特征在于:所述橡胶管由氟橡胶内层、乙烯丙烯酸酯橡胶中层、芳纶线层和乙烯丙烯酸酯橡胶外层组成,所述氟橡胶内层厚度为0.4 mm,所述乙烯丙烯酸酯橡胶中层厚度为1 mm,芳纶线层厚度为0.1 mm,乙烯丙烯酸酯橡胶外层厚度为1 mm。
上述一种乙烯丙烯酸酯橡胶涡轮增压胶管的制作方法,包括以下步骤:
1)管胚制造过程
挤出内胶和中胶:在双复合挤出机上同时挤出氟胶和乙烯丙烯酸酯橡胶,设定内胶氟胶挤出温度为70℃, 60℃, 50℃, 40℃, 50℃,中胶乙烯丙烯酸酯橡胶的挤出温度为70℃, 60℃, 50℃, 40℃, 50℃。
增强层为芳纶线。
挤出外胶:选择合适的机针、口型将乙烯丙烯酸酯橡胶混炼胶直接挤出,设定外胶挤出温度依次为 70℃, 60℃, 50℃,40℃,50℃。
2)硫化:
在硫化罐里进行一次硫化,一段硫化参数:温度为170℃,时间为20min,之后在烘箱中进行二次硫化成型,二段硫化参数:温度为175℃,时间为4h
实施例2
一种乙烯丙烯酸酯橡胶涡轮增压胶管,包括橡胶管,其特征在于:所述橡胶管由氟橡胶内层、乙烯丙烯酸酯橡胶中层、芳纶线层和乙烯丙烯酸酯橡胶外层组成,所述氟橡胶内层厚度为1.0mm,所述乙烯丙烯酸酯橡胶中层厚度为4mm,芳纶线层厚度为2mm,乙烯丙烯酸酯橡胶外层厚度为4mm。
上述一种乙烯丙烯酸酯橡胶涡轮增压胶管的制作方法,包括以下步骤:
1)管胚制造过程
挤出内胶和中胶:在双复合挤出机上同时挤出氟胶和乙烯丙烯酸酯橡胶,设定内胶氟胶挤出温度为80℃, 70℃, 60℃, 50℃, 60℃,中胶乙烯丙烯酸酯橡胶的挤出温度为75℃, 65℃,55℃, 45℃, 55℃。
增强层为芳纶线。
设定外胶挤出温度依次为75℃, 65℃,55℃, 45℃, 55℃。
2)硫化:
在硫化罐里进行一次硫化,一段硫化参数:温度为180℃,时间为10min,之后在烘箱中进行二次硫化成型,二段硫化参数:温度为185℃,时间为2h
实施例3
一种乙烯丙烯酸酯橡胶涡轮增压胶管,包括橡胶管,其特征在于:所述橡胶管由氟橡胶内层、乙烯丙烯酸酯橡胶中层、芳纶线层和乙烯丙烯酸酯橡胶外层组成,所述氟橡胶内层厚度为0.7mm,所述乙烯丙烯酸酯橡胶中层厚度为2.5mm,芳纶线层厚度为1mm,乙烯丙烯酸酯橡胶外层厚度为2.5mm。
上述一种乙烯丙烯酸酯橡胶涡轮增压胶管的制作方法,包括以下步骤:
1)管胚制造过程
挤出内胶和中胶:在双复合挤出机上同时挤出氟胶和乙烯丙烯酸酯橡胶,设定内胶氟胶挤出温度为90℃, 80℃, 70℃, 60℃, 70℃,中胶乙烯丙烯酸酯橡胶的挤出温度为80℃, 70℃,60℃, 50℃, 60℃。
增强层为芳纶线。
设定外胶挤出温度依次为80℃, 70℃,60℃, 50℃, 60℃。
2)硫化:
在硫化罐里进行一次硫化,一段硫化参数:温度为160℃,时间为60min,之后在烘箱中进行二次硫化成型,二段硫化参数:温度为160℃,时间为8h
序号 | 测试项目 | 指标要求 | 实测 |
1 | 附着力 | ≥3N/mm | 5.1 N/mm |
2 | 脉冲试验(内部温度:200℃,外部温度:150℃,试验压力:2.5bar,频率:0.5~1Hz 介质:空气) | ≥300000次 | 354786次 |
3 | 渗透性能24h/80℃ | <6g/100cm2 | 2.8g/100cm2 |
以上所述仅为本发明示意性的具体实施方式,并非用以限定本发明的范围。任何本领域的技术人员,在不脱离本发明的构思和原则的前提下所作出的等同变化与修改,均应属于本发明保护的范围。
Claims (2)
1.一种乙烯丙烯酸酯橡胶涡轮增压胶管,包括橡胶管,其特征在于:所述橡胶管由氟橡胶内层、乙烯丙烯酸酯橡胶中层、芳纶线层和乙烯丙烯酸酯橡胶外层组成,所述氟橡胶内层厚度为0.4 mm~1.0mm,所述乙烯丙烯酸酯橡胶中层厚度为1 mm~ 4mm,芳纶线层厚度为0.1 mm~2mm,乙烯丙烯酸酯橡胶外层厚度为1 mm~4mm。
2.如权利要求1所述的一种乙烯丙烯酸酯橡胶涡轮增压胶管的制作方法,其特征在于,包括以下步骤:
1)管胚制造过程 氟橡胶内层与乙烯丙烯酸酯橡胶橡胶中层双复合挤出:氟橡胶内层控制挤出温度从机头到螺杆依次为90℃~70℃,80℃~60℃,70℃~50℃,60℃~40℃,70℃~50℃; 乙烯丙烯酸酯橡胶中层挤出温度从机头到螺杆依次为90℃~70℃,80℃~60℃,70℃~50℃,60℃~40℃,70℃~50℃;增强层为芳纶线;外胶挤出:挤出温度从机头到螺杆依次为90℃~70℃,80℃~60℃,70℃~50℃,60℃~40℃,70℃~50℃;
2)硫化成型过程: 采用两段硫化方法,一段硫化参数:硫化温度为150℃~180℃,硫化时间为5min~60min; 二段硫化参数:硫化温度为160℃~200℃,硫化时间为1h~8h。
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