CN105856666B - 一种多孔或单孔橡胶填充波纹板复合材料及其制备方法 - Google Patents
一种多孔或单孔橡胶填充波纹板复合材料及其制备方法 Download PDFInfo
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Abstract
本发明提供一种多孔或单孔橡胶填充波纹板复合材料的制备方法,首先使平整过的金属板材形成波纹结构芯体;采用连接技术将波纹结构芯体与金属板材面板连接制成波纹结构夹层板;根据波纹结构夹层板中孔的空间尺寸,制作多孔橡胶;将各多孔橡胶分别塞入相应的波纹结构夹层板并铸工胶胶接,将波纹结构夹层板的孔全部插满,固化,得到多孔橡胶填充波纹结构夹层板。本发明的制备方法制成的多孔橡胶填充波纹结构夹层板力学性能优异,且能吸能减振,是综合性能更加优异的结构功能材料。
Description
技术领域
本发明涉及一种复合材料及其制备方法,尤其是一种多孔或单孔橡胶填充波纹板复合材料及其制备方法。
背景技术
近些年来随着材料制备以及机械加工技术的迅速发展,超轻多孔金属材料成为一类新颖的多功能材料。该类材料的芯体具有高孔隙率,其微结构按规则程度可分为无序和有序两大类,前者包括闭孔泡沫铝材料,而后者包括二维点阵材料(如波纹结构)与三维桁架结构(如金字塔结构、四面体结构)。
目前,波纹夹层结构作为金属类复合材料,由于其自身阻尼较小,没有损耗能量的途径,所以其在减振方面有天生的缺陷。而阻尼橡胶材料具有高阻尼特性,能在相当宽的频带内起到抑制振动和噪声的作用,被广泛应用于阻尼减振结构,是控制结构及仪器设备振动、冲击和噪声的有效手段。但是橡胶材料由于模量较低,一般不能成为工程中的结构材料。
因此,一种减震效果好的工程结构材料显得尤为重要,本发明将金属材料和阻尼橡胶材料复合使用,达到二者的优势互补,制备一种轻质、高强度的工程减振材料。
发明内容
本发明的目的是提供一种轻质、高强度的多孔或单孔橡胶填充波纹板复合材料及其制备方法,解决了波纹夹层结构类工程结构材料减震效果不好的问题。
本发明的技术解决方案是:
提供一种多孔或单孔橡胶填充波纹板复合材料,其特别之处在于:包括金属板材面板、波纹结构芯体和橡胶棒,所述波纹结构芯体位于两块金属板材面板之间,形成波纹结构夹层板;所述橡胶棒的径向方向上具有至少一个通孔,形成多孔或单孔橡胶;所述多孔或单孔橡胶横截面形状和波纹结构夹层板中孔的形状相匹配,多孔或单孔橡胶位于波纹结构夹层板的孔中;当为一个通孔时,单孔橡胶中通孔的口型为与波纹结构夹层板中孔的形状相匹配的梯形;当通孔的数量大于1时,多孔橡胶中通孔的口型为三角形。
上述的金属板材为碳钢钢板、不锈钢板、铝板或钛板。
上述的橡胶棒的材料为三元乙丙合成橡胶。
上述波纹结构芯体的相对密度为1~10%,多孔或单孔橡胶的壁厚为0.5-2mm。
提供一种制备上述多孔或单孔橡胶填充波纹板复合材料的方法,其特别之处在于:包括以下步骤:
1)将平整过的金属板材制成波纹结构芯体;
2)采用连接技术将波纹结构芯体与金属板材面板连接制成波纹结构夹层板;
3)根据波纹结构夹层板中孔的空间尺寸,制作多孔或单孔橡胶;
4)将各多孔或单孔橡胶分别塞入相应的波纹结构夹层板的孔中,并铸工胶胶接,将波纹结构夹层板的孔全部插满,静置或者在烘箱中加热至40~60℃固化。
采用模压折叠技术制备波纹结构芯体。
为了波纹结构芯体和金属板材面板连接牢固,上述步骤1)和步骤2)之间还包括清洗波纹结构芯体和金属板材面板的步骤。
步骤2)所用的连接技术为钎焊、激光焊或环氧胶接技术。
为了提高橡胶生产效率及产品质量,步骤3)采用挤压成型工艺制备多孔橡胶,其是胶料在挤压机螺杆的挤压下,通过所设计的不同截面形状的橡胶棒的通孔的口型进行连续造型的工艺过程,通过该工艺即获得挤压成型的多孔橡胶试件。
本发明的有益效果是:
本发明所使用的波纹夹层结构,其制造成本低,力学性能优异,将橡胶材料作为工程结构材料,克服了其模量低,不能作为工程结构材料的缺点,且多孔橡胶材料,具有吸能减振的优势,将二者复合,实现多功能的耦合,获得综合性能更加优异的结构功能材料。
附图说明
图1为波纹结构夹层板的结构示意图;
图2为实施例一和实施例三中多孔橡胶的结构示意图;
图3为多孔橡胶填充波纹夹层板的结构示意图;
图4为为实施例二中多孔橡胶结构示意图;
图5为多孔橡胶填充不锈钢波纹板试件隔声性能曲线;
图6为多孔橡胶填充铝合金波纹板试件隔声性能曲线;
图7不锈钢波纹板与多孔橡胶填充不锈钢波纹板振动自由衰减过程对比;
图8铝合金波纹板与多孔橡胶填充铝合金波纹板振动自由衰减过程对比。
图中附图标记为:1-面板;2-波纹结构芯体;3-多孔橡胶I;4-多孔橡胶II。
具体实施方式
下面结合附图及实施例对本发明作进一步详细说明。
如图1和图3所示是本发明复合材料的结构示意图,将金属板材制成波纹夹层结构,将其和橡胶复合,实现多功能的耦合,既具有多孔金属材料质轻的特点又具有橡胶材料减振的性能,是一种轻质、高强度的工程减振材料。
实施例一:
1)首先将平整过的厚度为0.5-2mm,牌号为5083铝合金板材采用模压技术形成具有平台结构的波纹结构芯体2,然后将波纹结构芯体2和面板1清洗去除油污和锈迹,采用铸工胶胶接技术将波纹结构芯体2与面板1连接制成波纹结构夹层板,如图1所示。
2)其次,如图2所示,根据波纹结构夹层板中的孔的空间尺寸,通过所设计中空形状的橡胶棒的通孔的口型进行连续造型的工艺过程,采用挤压成型工艺制作多孔橡胶I3(单孔橡胶)。
3)最后,将各多孔橡胶I3制品分别塞入相应的波纹结构夹层板的孔中并铸工胶胶接,将波纹结构夹层板的孔全部插满,静置或者在烘箱中加热至40~60℃固化,即可获得多孔橡胶填充波纹板试件,参见图3。其中波纹结构芯体的相对密度为1~10%,多孔橡胶I3材料的壁厚为0.5-2mm。
实施例二:
1)首先将平整过的厚度为0.5-2mm,牌号为304的不锈钢板材采用模压技术形成具有平台结构波纹芯体2,然后将波纹结构芯体2和面板1清洗去除油污和锈迹,采用钎焊技术将波纹芯体2与面板1连接制成波纹结构夹层板。
2)其次,如图4所示,根据波纹结构夹层板中孔的空间尺寸,通过所设计不同截面形状的橡胶棒的通孔的口型进行连续造型的工艺过程,采用挤压成型工艺制作多孔橡胶II4。
3)最后,将各多孔橡胶II4制品分别塞入相应的波纹结构夹层板的孔中并铸工胶胶接,将波纹结构夹层板的孔全部插满,静置或者在烘箱中加热至40~60℃固化,即可获得多孔橡胶填充波纹板试件。其中波纹结构芯体的相对密度为1~10%,多孔橡胶II4材料的壁厚和筋厚为0.5-2mm。
实施例三:
1)首先将平整过的厚度为0.5-2mm,牌号为1060铝板采用折叠技术形成具有平台结构波纹结构芯体2,然后将波纹结构芯体2和面板1清洗去除油污和锈迹,采用铸工胶胶接技术将波纹结构芯体2与面板1连接制成波纹结构夹层板。
2)其次,如图2所示,根据波纹结构夹层板中孔的空间尺寸,通过所设计中空形状橡胶棒通孔的口型进行连续造型的工艺过程,采用挤压成型工艺制作多孔橡胶I3(单孔橡胶)。
3)最后,将各多孔橡胶I3制品分别塞入相应的波纹结构夹层板的孔中并铸工胶胶接,将波纹结构夹层板的孔全部插满,静置或者在烘箱中加热至40~60℃固化,即可获得多孔橡胶填充波纹板试件。其中波纹结构芯体的相对密度为1~10%,多孔橡胶I3材料的壁厚为0.5-2mm。
通过夹层结构的驻波管实验对多孔橡胶填充波纹板的隔声性能进行测试,采用的驻波管是B&K公司的4207,测试频率范围为50-1600Hz,测试试件的直径必须为100mm。根据此要求,采用线切割先切割出直径为100mm的面板与芯体,然后制备出试件进行测试,如图5所示,为多孔橡胶填充不锈钢波纹板试件隔声性能曲线,图6为多孔橡胶填充铝合金波纹板试件隔声性能曲线,结果表明复合多孔橡胶后,其隔声性能均提高10dB以上,其中多孔橡胶填充不锈钢波纹板试件的隔声性能提高更显著一些,如果考虑质量的因素,多孔橡胶填充铝合金波纹板试件隔声性能更佳。
通过正弦扫频和冲击实验来测试多孔橡胶填充波纹板的减振性能,由图7可知,在相同冲击扰动条件下,多孔橡胶填充不锈钢波纹板自由振动衰减过程明显优于不锈钢波纹板,这是由于金属板振动时不断拉伸、压缩内部填充的橡胶材料,从而使橡胶材料不断重复加载卸载过程,正是由于橡胶材料在加卸载过程中的滞回特性,使其在加卸载过程中阻尼持续发挥作用,因此在自由振动过程中填充橡胶的波纹板振动幅值明显小于未填充橡胶波纹板。由图8可知,铝合金波纹板与多孔橡胶填充铝合金波纹板具有类似差异,究其原因亦是由于橡胶材料阻尼特性与波纹板结构的复合特性起到了关键作用。
Claims (8)
1.一种多孔或单孔橡胶填充波纹板复合材料,其特征在于:包括金属板材面板、波纹结构芯体和橡胶棒,所述波纹结构芯体位于两块金属板材面板之间,形成波纹结构夹层板;所述橡胶棒的径向方向上具有至少一个通孔,形成多孔或单孔橡胶;所述多孔或单孔橡胶的横截面形状和波纹结构夹层板中孔的形状相匹配,多孔或单孔橡胶位于波纹结构夹层板的孔中;当为一个通孔时,单孔橡胶中通孔的口型为与波纹结构夹层板中孔的形状相匹配的梯形;当通孔的数量大于1时,多孔橡胶中通孔的口型为三角形。
2.根据权利要求1所述的多孔或单孔橡胶填充波纹板复合材料,其特征在于:所述的金属板材面板为碳钢钢板、不锈钢板、铝板或钛板。
3.根据权利要求1或2所述的多孔或单孔橡胶填充波纹板复合材料,其特征在于:所述的多孔或单孔橡胶的材料为三元乙丙合成橡胶。
4.根据权利要求1或2所述的多孔或单孔橡胶填充波纹板复合材料,其特征在于:所述波纹结构芯体的相对密度为1~10%,多孔或单孔橡胶的壁厚为0.5-2mm。
5.一种制备权利要求1中多孔或单孔橡胶填充波纹板复合材料的方法,其特征在于:包括以下步骤:
1)将平整过的金属板材制成波纹结构芯体;
2)采用连接技术将波纹结构芯体与金属板材面板连接制成波纹结构夹层板;
3)根据波纹结构夹层板中孔的空间尺寸,采用挤压成型工艺制作多孔或单孔橡胶;
4)将各多孔或单孔橡胶分别塞入相应的波纹结构夹层板的孔中,并铸工胶胶接,将波纹结构夹层板的孔全部插满,静置或者在烘箱中加热至40~60℃固化。
6.根据权利要求5所述的制备权利要求1中多孔或单孔橡胶填充波纹板复合材料的方法,其特征在于:步骤1)采用模压折叠技术。
7.根据权利要求5所述的制备权利要求1中多孔或单孔橡胶填充波纹板复合材料的方法,其特征在于:步骤1)和步骤2)之间还包括清洗波纹结构芯体和金属板材面板的步骤。
8.根据权利要求5所述的制备权利要求1中多孔或单孔橡胶填充波纹板复合材料的方法,其特征在于:步骤2)所用的连接技术为钎焊、激光焊或环氧胶接技术。
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