CN108331868B - 一种y向阻尼件及其制造方法 - Google Patents

一种y向阻尼件及其制造方法 Download PDF

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CN108331868B
CN108331868B CN201711478422.XA CN201711478422A CN108331868B CN 108331868 B CN108331868 B CN 108331868B CN 201711478422 A CN201711478422 A CN 201711478422A CN 108331868 B CN108331868 B CN 108331868B
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罗耀
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Zhejiang Zhongjun Technology Co.,Ltd.
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Abstract

本发明涉及阻尼件领域，公开一种Y向阻尼件及其制造方法。Y向阻尼件包括聚氨酯块、第二聚氨酯块、钢构件，聚氨酯块两端分别与第二聚氨酯块、钢构件粘合，其中聚氨酯块包括A料和B料，第二聚氨酯块包括C料和D料，制造方法涉及了A料、B料、C料、D料的组分配制、聚氨酯块的制造、第二聚氨酯块的制造、聚氨酯块与第二聚氨酯块和钢构件粘合的过程。市场上所用的Y向阻尼件采用聚环氧化物，生产成本高、使用寿命不长，橡胶作为制造Y向阻尼件，生产成本偏高、易燃、平整度较差，而本发明采用聚氨酯材料，所得到的Y向阻尼件，包括用于安装的钢构件和聚氨酯阻尼块，便于安装且降噪、隔振效果好，同时成本不高、使用寿命长、不污染环境。

Description

一种Y向阻尼件及其制造方法
技术领域
本发明涉及阻尼件领域，尤其涉及一种Y向阻尼件及其制造方法。
背景技术
汽车是目前最重要的交通工具之一，随着行业的发展，人们对汽车舒适性要求越来越高，有许多专门提高汽车舒适性的配件，其中减振起着重要的作用，它能有效的使振动迅速衰减起到减震的作用，增强汽车行驶的稳定性。目前市面上出售的汽车内都安装有阻尼件，阻尼件贴在车身内表面的钢板壁上，起到减振降噪的作用。
目前大量进口品牌制造的用于汽车领域的阻尼件采用聚环氧化物，但由于该类阻尼件生产成本高，且使用寿命不长。为了降低成本，也有制造沥青作为主材的用于汽车领域的阻尼件，但是严重污染环境，且减振降噪效果不佳。所以综合了成本、环境、减震效果考虑，目前很多厂家采用橡胶作为制造阻尼件的主材，虽然可以很大程度上提高了减振阻尼性能，但是仍然存在成本偏高、易燃性、平整度较差的缺点。因此需要提供一种阻尼件，具有降噪，固有频率低，隔振效果好的优点，同时成本不高、使用寿命长、不污染环境。
发明内容
本发明针对现有技术中减震阻尼件成本偏高、减震降噪效果不好的缺点，提供一种Y向阻尼件。
为了解决上述技术问题，本发明通过下述技术方案得以解决：
一种Y向阻尼件，包括聚氨酯块、钢构件，钢构件包括固定片、六角螺栓，固定片的直径为60mm，在固定片上设有多个直径为11mm的通孔，通孔的圆心与固定片的中轴线的距离为45mm，六角螺栓包括螺栓头和螺杆，螺杆上设有外螺纹，螺栓头与固定片固定连接，螺栓头和固定片都嵌合于聚氨酯块内，螺杆伸出聚氨酯块外。螺栓头用于固定阻尼件，固定片使螺栓头牢固固定于聚氨酯块，且受到压力时，振动传导至固定块，固定块和聚氨酯块挤压，具有一定的减震效果。
作为优选，聚氨酯块上设有直径为30mm的凹槽，凹槽底部与螺栓头的上表面处于同一平面上，固定片的下方一体成型有三根向下延伸的等宽隔板，分别为中间隔板和对称设置的左隔板和右隔板，左隔板与中间隔板之间的夹角A为10～20度，右隔板与中间隔板之间的夹角B为10～20度。由于在固定片下方一体成型有三根向下延伸的等宽隔板，且左隔板与中间隔板之间的形成一定角度的夹角，右隔板与中间隔板之间也形成一定角度的夹角，既提供了钢构件在聚氨酯块的支撑力度，同时，当受到外力时，特别是阻尼件的圆周方向受到径向力F时，会传导给左隔板和右隔板，左隔板和右隔板与中间隔板之间再次受到挤压力，由于有倾斜的角度，左隔板和右隔板受到挤压力的同时，左隔板和右隔板产生适当的弹性形变，在产生反作用力的影响下，使得左隔板和右隔板又向外恢复弹性，从而更好地调整弹性与阻尼，延长使用寿命。
一种Y向阻尼件的制造方法，其组分按质量份数计，包括以下步骤：
(1)配制A料：将40份聚四氢呋喃二醇，60份聚丙交脂二元醇添至搅拌罐中，再在搅拌罐中添加3～10份扩链交联剂搅拌10分钟，然后添加2～15份催化剂、1～3份硅油、1～2份颗粒填料搅拌2小时得到混合物，将混合物均匀地装桶并封入氮气；
(2)配制B料：将260份聚四氢呋喃二醇加入搅拌桶中，将搅拌桶中的真空度调整为85kPa并于100℃的温度下真空搅拌脱水2小时，脱水完后于室温下冷却使搅拌桶中聚四氢呋喃二醇温度低于45℃，再在搅拌桶中加入100～200份异氰酸酯搅拌反应1-2小时，反应后自然冷却至反应产物温度在50℃以下，测异氰酸酯含量，若异氰酸酯含量达到目标值，将反应产物装入桶内并封入氮气；
(3)将A料和B料都加入到发泡罐中，A料与B料的质量比为13：15～1:1，发泡罐内抽真空除气3～5min得到泡沫，将泡沫倒入模具中，立刻放上钢构件(2)加工成型。
作为优选，所述的扩链交联剂为MOCA、MDA、DMTDA、DETDA、MCDEA、TMP、丙三醇、MDI三聚体、乙醇胺、二乙醇胺、三乙醇胺、三异丙醇胶中的一种或多种。MOCA为3,3'-二氯-4,4'-二氨基二苯基甲烷，MDA为丙二醛，DMTDA为二甲硫基甲苯二胺、DETDA为3，5-二乙基-2，4甲苯二胺(约80％)与3，5-二乙基-2，6-甲苯二胺(约20.0％)两种异构体织成的混合物，M-CDEA为4,4'-亚甲基双(3-氯-2,6-二乙基苯胺)，TMP为磷酸三甲酯、丙三醇、MDI为4,4'二苯基甲烷二异氰酸酯。
聚丙交脂二元醇和聚四氢呋喃二醇分别能与B组分的预聚体发生扩链反应，二者混合在一起反应，由于存在多种材质，混合增加了隔振降噪的效果，且添加的聚丙交酯二元醇使阻尼件更容易降解，对环境保护具有积极作用。
作为优选，所述的催化剂为1,4-二氮杂二环[2.2.2]辛烷、三乙胺、二丁基二月桂酸锡、辛酸亚锡中的一种或多种。
作为优选，异氰酸酯为异佛尔酮二异氢酸脂、二苯基甲烷二异氰酸酯的其中一种或其混合物。
作为优选，颗粒填料为碳酸钙、炭黑、碳纤维、玻璃纤维其中的一种或多种。添加了颗粒填料后，阻尼件的拉伸强度、撕裂强度会有所提升，弹性有所降低，增加了阻尼件的耐磨性质。
本发明由于采用了以上技术方案，具有显著的技术效果：阻尼件包括具有金属部件和聚氨酯阻尼装置，便于安装且具有降噪，固有频率低，隔振效果好的优点，同时成本不高、使用寿命长、不污染环境。
附图说明
图1是发明的结构示意图。
图2是钢构件的俯视图。
以上附图中各数字标号所指代的部位名称如下：其中，1—聚氨酯块、2—钢构件、21—固定片、22—六角螺栓、23—凹槽、211—通孔、221—螺栓头、222—螺杆、331—左隔板、332—中间隔板、333—右隔板。
具体实施方式
下面结合附图与实施例对本发明作进一步详细描述。
实施例1
一种Y向阻尼件，如图1-2所示，包括聚氨酯块1、钢构件2，钢构件2包括固定片21、六角螺栓22，固定片21的直径为60mm，在固定片21上设有多个直径为11mm的通孔211，通孔211的圆心与固定片21的中轴线的距离为45mm，六角螺栓22包括螺栓头221和螺杆222，螺杆222上设有外螺纹，螺栓头221与固定片21固定连接，螺栓头221和固定片21都嵌合于聚氨酯块1内，螺杆222伸出聚氨酯块1外。
聚氨酯块1上设有直径为30mm的凹槽23，凹槽23底部与螺栓头221的上表面处于同一平面上，固定片21的下方一体成型有三根向下延伸的等宽隔板，分别为中间隔板332和对称设置的左隔板331和右隔板333，左隔板331与中间隔板332之间的夹角A为15度，右隔板333与中间隔板332之间的夹角B为15度。由于在固定片21下方一体成型有三根向下延伸的等宽隔板，且左隔板331与中间隔板332之间的形成一定角度的夹角，右隔板333与中间隔板332之间也形成一定角度的夹角，既提供了钢构件2在聚氨酯块1的支撑力度，同时，当受到外力时，特别是阻尼件的圆周方向受到径向力F时，会传导给左隔板331和右隔板333，左隔板331和右隔板333与中间隔板332之间再次受到挤压力，由于有倾斜的角度，左隔板331和右隔板333受到挤压力的同时，左隔板331和右隔板333产生适当的弹性形变，在产生反作用力的影响下，使得左隔板331和右隔板333又向外恢复弹性，从而更好地调整弹性与阻尼，延长使用寿命。
实施例2
一种Y向阻尼件的制造方法，其组分按质量份数计，包括以下步骤：
(1)配制A料：将40份聚四氢呋喃二醇，60份聚丙交脂二元醇添至搅拌罐中，再在搅拌罐中添加4份MOCA、6份三乙醇胺搅拌10分钟，然后添加0.5份辛酸亚锡、3份三乙胺、2份炭黑、1份碳纤维、1份硅油搅拌2小时得到混合物，将混合物均匀地装桶并封入氮气；
(2)配制B料：将260份聚四氢呋喃二醇加入搅拌桶中，将搅拌桶中的真空度调整为85kPa并于100℃的温度下真空搅拌脱水2小时，脱水完后于室温下冷却使搅拌桶中聚四氢呋喃二醇温度低于45℃，再在搅拌桶中加入100份异佛尔酮二异氢酸脂和100份二苯基甲烷二异氰酸搅拌反应2小时，反应后自然冷却至反应产物温度在50℃以下，测异氰酸酯含量，若异氰酸酯含量达到25％-30％，将反应产物装入桶内并封入氮气；
(3)将A料和B料都加入到发泡罐中，A料与B料的质量比为13：15，抽真空除气5min，倒入聚四氟乙烯模具中加工成型。
实施例3
一种Y向阻尼件的制造方法，其组分按质量份数计，包括以下步骤：
(1)配制A料：将40份聚四氢呋喃二醇，60份聚丙交脂二元醇添至搅拌罐中，再在搅拌罐中添加4份三异丙醇胶搅拌10分钟，然后添加5份1,4-二氮杂二环[2.2.2]辛烷、1份二丁基二月桂酸锡、0.5份N,N-二甲基乙醇胺、1份硅油、2份玻璃纤维搅拌2小时得到混合物，将混合物均匀地装桶并封入氮气；
(2)配制B料：将260份聚四氢呋喃二醇加入搅拌桶中，将搅拌桶中的真空度调整为85kPa并于100℃的温度下真空搅拌脱水2小时，脱水完后于室温下冷却使搅拌桶中聚四氢呋喃二醇温度低于45℃，再在搅拌桶中加入150份异佛尔酮二异氢酸脂搅拌反应1.5小时，反应后自然冷却至反应产物温度在50℃以下，测异氰酸酯含量，若异氰酸酯含量达到25％-30％，将反应产物装入桶内并封入氮气；
(3)将A料和B料都加入到发泡罐中，A料与B料的质量比为13：14，抽真空除气4min，倒入聚四氟乙烯模具中加工成型。
实施例4
一种Y向阻尼件的制造方法，其组分按质量份数计，包括以下步骤：
(1)配制A料：将40份聚四氢呋喃二醇，60份聚丙交脂二元醇添至搅拌罐中，再在搅拌罐中添加10份M-CDEA搅拌10分钟，然后添加1份辛酸亚锡、3份N,N-二甲基乙醇胺、2份硅油、2份碳酸钙、1份炭黑、1.5份碳纤维搅拌2小时得到混合物，将混合物均匀地装桶并封入氮气；
(2)配制B料：将260份聚四氢呋喃二醇加入搅拌桶中，将搅拌桶中的真空度调整为85kPa并于100℃的温度下真空搅拌脱水2小时，脱水完后于室温下冷却使搅拌桶中聚四氢呋喃二醇温度低于45℃，再在搅拌桶中加入100份二苯基甲烷二异氰酸酯搅拌反应1小时，反应后自然冷却至反应产物温度在50℃以下，测异氰酸酯含量，若异氰酸酯含量达到25％～28％，将反应产物装入桶内并封入氮气；
(3)将A料和B料都加入到发泡罐中，A料与B料的质量比为1:1，抽真空除气5min，倒入聚四氟乙烯模具中加工成型。
实施例5
所制得的Y向阻尼件的聚氨酯块按照各实施例测定玻璃化转变温度、密度、拉伸强度和扯断伸长率，具体测试结果如下表1所示：
表1产品性能测试结果
Figure GDA0002271001670000071
由表中数据可知，实施例所得的所述的Y向阻尼件具有良好的性能，能用于汽车领域且达到良好的效果。
实施例6
将得到的Y向阻尼件在垂直施压25.0kN以上，测量得到Y向阻尼件压缩变形量都大于35mm，并且无破裂现象；卸压后，3min内复原至变形量小于2mm的状态，测试得到Y向阻尼件纵向最大受力为75kN以上，测量得到Y向阻尼件压缩变形量为90mm，并且无破裂现象；卸压后，3min内复原至变形量小于3mm的状态，且按照国标GB/T10707-2008的方法检验得到Y向阻尼件的阻燃等级皆达到FV-1，阻燃性能满足DIN5510-2可燃等级S3的标准。
总之，以上所述仅为本发明的较佳实施例，凡依本发明申请专利范围所作的均等变化与修饰，皆应属本发明专利的涵盖范围。

Claims (5)

1.一种制造Y向阻尼件的方法，Y向阻尼件包括聚氨酯块(1)、钢构件(2)，钢构件(2)包括固定片(21)、六角螺栓(22)，固定片(21)的直径为60mm，固定片(21)上设有多个直径为11mm的通孔(211)，通孔(211)的圆心与固定片(21)的中轴线的距离为45mm，六角螺栓(22)包括螺栓头(221)和螺杆(222)，螺杆(222)上设有外螺纹，螺栓头(221)与固定片(21)固定连接，螺栓头(221)和固定片(21)都嵌合于聚氨酯块(1)内，螺杆(222)伸出聚氨酯块(1)外；聚氨酯块(1)上设有直径为30mm的凹槽(23)，凹槽(23)底部与螺栓头(221)的上表面处于同一平面上，固定片(21)的下方一体成型有三根向下延伸的等宽隔板，分别为中间隔板(332)和对称设置的左隔板(331)和右隔板(333)，左隔板(331)与中间隔板(332)之间的夹角A为10～20度，右隔板(333)与中间隔板(332)之间的夹角B为10～20度，其特征在于：Y向阻尼件其组分按质量份数计，包括以下步骤：
(1)配制A料：将40份聚四氢呋喃二醇，60份聚丙交脂二元醇添至搅拌罐中，再在搅拌罐中添加3～10份扩链交联剂搅拌10分钟，然后添加2～15份催化剂、1～3份硅油、1～5份颗粒填料搅拌2小时得到混合物，将混合物均匀地装桶并封入氮气；
(2)配制B料：将260份聚四氢呋喃二醇加入搅拌桶中，将搅拌桶中的真空度调整为85kPa并于100℃的温度下真空搅拌脱水2小时，脱水完后于室温下冷却使搅拌桶中聚四氢呋喃二醇温度低于45℃，再在搅拌桶中加入100～200份异氰酸酯搅拌反应1-2小时，反应后自然冷却至反应产物温度在50℃以下，将反应产物装入桶内并封入氮气；
(3)将A料和B料都加入到发泡罐中，A料与B料的质量比为13：15～1:1，发泡罐内抽真空除气3～5min得到泡沫，将泡沫倒入模具中，放上钢构件(2)加工成型。
2.根据权利要求1所述的一种制造Y向阻尼件的方法，其特征在于：步骤(1)所述的扩链交联剂为MOCA、MDA、DMTDA、DETDA、M-CDEA、TMP、丙三醇、MDI三聚体、乙醇胺、二乙醇胺、三乙醇胺、三异丙醇胶中的一种或多种。
3.根据权利要求1所述的一种制造Y向阻尼件的方法，其特征在于：步骤(1)所述的催化剂为1,4-二氮杂二环[2.2.2]辛烷、三乙胺、二丁基二月桂酸锡、辛酸亚锡、N,N-二甲基乙醇胺中的一种或多种。
4.根据权利要求1所述的一种制造Y向阻尼件的方法，其特征在于：步骤(2)中所述的异氰酸酯为异佛尔酮二异氢酸脂、二苯基甲烷二异氰酸酯的其中一种或多种。
5.根据权利要求1所述的一种制造Y向阻尼件的方法，其特征在于：颗粒料为碳酸钙、炭黑、碳纤维、玻璃纤维其中的一种或多种。
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