CN106350693A - 一种道路用缓冲柱 - Google Patents

一种道路用缓冲柱 Download PDF

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CN106350693A
CN106350693A CN201610442927.XA CN201610442927A CN106350693A CN 106350693 A CN106350693 A CN 106350693A CN 201610442927 A CN201610442927 A CN 201610442927A CN 106350693 A CN106350693 A CN 106350693A
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刁德斌
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    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
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Abstract

一种道路用缓冲柱，缓冲柱呈圆柱型，缓冲柱芯部为颗粒增强泡沫铝基复合材料，芯部外围包裹弹性材料层，弹性材料层外为钛合金筒体，发泡基材铝基合金更好的保证了产品具有更好的耐冲击效果，同时降低产品质量；颗粒增强泡沫铝基复合材料可以更好的吸收冲击能。

Description

一种道路用缓冲柱
技术领域
本发明涉一种道路用缓冲柱，属于防撞件技术领域。
背景技术
缓冲柱主要设置在公路及城市道路上容易发生汽车与路中固定设施发生碰撞的部位，如：路的转弯处，路中岗亭、收费站及高架路的进出口，停车场、小区、花园、加油站等等，起到缓冲作用，当汽车与该设备碰撞时，能有效地减小冲击力，减缓碰撞能，因此，能显著地降低车与人地损伤。现有技术中缓冲住缓冲较差、成本高、寿命短、安全性较低。
发明内容
一种道路用缓冲柱，缓冲柱呈圆柱型，缓冲柱芯部为颗粒增强泡沫铝基复合材料，芯部外围包裹弹性材料层，弹性材料层外为钛合金筒体，其特征在于：
所述颗粒增强泡沫铝基复合材料采取以下制备方法制备：
准备铝合金锭，其成分百分比为：Cr 3.6﹪， Ni 1.7﹪，Mo 0.78﹪，Mg 0.16﹪，Zn0.18﹪，Fe 0.079﹪，Ce 0.039﹪，Nb 0.018﹪，余量为Al；
将上述铝合金熔化升温至700℃～760℃，通入保护Ar气精炼保温10分钟；
加入占熔体总重量6-7%的增稠剂和加入占熔体质量分数10-12%的碳化硅和/或氧化铝颗粒，以500～800rpm的速度搅拌金属液2-3分钟，再以1200-1400rpm的速度搅拌1-2分钟，使粘度为2～2.3mPa .s；
加入发泡剂，发泡剂的组成为碳酸钙44%，碳酸钡5.6%，硫酸钙3.7%，碳酸钾8.6%，锰矿4.6%，焦炭9.7%，余量为生石灰；经造粒的发泡剂粒径为20-65μm. 使发泡剂在熔体中混合均匀，搅拌发泡的时间是1-1.5分钟，搅拌速度1500rpm～2000rpm.
将步骤4）所得熔体在770℃-800℃保温3-5分钟后进行冷却，该熔体凝固后得到颗粒增强泡沫铝基复合材料；
所述弹性材料采取以下制备方法制备：
弹性材料由环氧树脂、聚醚胺、三乙烯四胺、铁粉和碳酸钙组成；其比例为环氧树脂：聚醚胺：三乙烯四胺：铁粉：碳酸钙=65:10.5:7：12:5.5；
钛合金筒体元素组成为：化学组成为（重量百分比）：Ni: 2.6﹪，Mg：1.7﹪，Zn：1.6﹪，Ca：0.88﹪，Cu ：0.79﹪，Sn：0.59﹪，Bi：0.38﹪，Cr：0.27﹪，Mo：0.086﹪，W：0.066﹪，Y：0.028﹪，余量为Ti及不可避免的杂质；
钛合金筒体的制备方法：包括以下步骤：按照上述钛合金筒体元素组成配料，先将纯铜加入到熔炼炉中，炉温控制在1750℃，待纯钛熔化后，炉温降到1740℃加入镍钛中间合金，后将炉温降低到1730℃加入镁钛中间合金；后将炉温降低到1720℃加入锌钛中间合金；后将炉温降低到1710℃加入其他合金元素，后炉温升高到1730℃，搅拌10分钟，静置20分钟，扒渣，后加入覆盖剂，静置30分钟后再次扒渣，之后对进行浇注；浇注温度为1700℃；得到的筒体进行热处理：首先将筒体进行加热升温至1000℃，升温速率130℃/小时，保温6小时，之后进行淬火处理，淬火介质为水，淬火后将筒体从室温加热至800℃，升温速率100℃/小时，保温2小时，后降温至600℃，降温速率50℃/小时，保温2小时，后再次降温至400℃，降温速率90℃/小时，保温6小时，后空冷至室温，得到最终的钛合金筒体。
通过模铸的方式将弹性材料包裹颗粒增强泡沫铝基复合材料周围，包裹弹性材料后与钛合金筒体以嵌套的方式进行连接，嵌套后给缓冲住配装基座和盖体。
上述发明内容相对于现有技术的有益效果在于：1）本发明外壳钛基合金材料充分满足本发明产品的外部强度要求；2）弹性材料可以有效提高碰撞物回弹效果减轻冲击破坏；3）通过碳化硅和/或氧化铝颗粒进行增强和复合发泡剂对铝基合金进行充分发泡得到颗粒增强泡沫铝基复合材料；4）发泡基材铝基合金更好的保证了产品具有更好的耐冲击效果，同时降低产品质量；5）颗粒增强泡沫铝基复合材料可以更好的吸收冲击能。
附图说明
图1为缓冲柱整体示意图；
图2为缓冲柱截面示意图。
具体实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现详细说明本发明的具体实施方式。
如图1和图2所示一种道路用缓冲柱4，缓冲柱呈圆柱型，缓冲柱芯部为颗粒增强泡沫铝基复合材料1，芯部外围包裹弹性材料层2，弹性材料层外为钛合金筒体3。
实施例1
一种道路用缓冲柱，缓冲柱呈圆柱型，缓冲柱芯部为颗粒增强泡沫铝基复合材料，芯部外围包裹弹性材料层，弹性材料层外为钛合金筒体，其特征在于：
所述颗粒增强泡沫铝基复合材料采取以下制备方法制备：
准备铝合金锭，其成分百分比为：Cr 3.6﹪， Ni 1.7﹪，Mo 0.78﹪，Mg 0.16﹪，Zn0.18﹪，Fe 0.079﹪，Ce 0.039﹪，Nb 0.018﹪，余量为Al；
将上述铝合金熔化升温至700℃～760℃，通入保护Ar气精炼保温10分钟；
加入占熔体总重量6-7%的增稠剂和加入占熔体质量分数10-12%的碳化硅和/或氧化铝颗粒，以500～800rpm的速度搅拌金属液2-3分钟，再以1200-1400rpm的速度搅拌1-2分钟，使粘度为2～2.3mPa .s；
加入发泡剂，发泡剂的组成为碳酸钙44%，碳酸钡5.6%，硫酸钙3.7%，碳酸钾8.6%，锰矿4.6%，焦炭9.7%，余量为生石灰；经造粒的发泡剂粒径为20-65μm. 使发泡剂在熔体中混合均匀，搅拌发泡的时间是1-1.5分钟，搅拌速度1500rpm～2000rpm.
将步骤4）所得熔体在770℃-800℃保温3-5分钟后进行冷却，该熔体凝固后得到颗粒增强泡沫铝基复合材料；
所述弹性材料采取以下制备方法制备：
弹性材料由环氧树脂、聚醚胺、三乙烯四胺、铁粉和碳酸钙组成；其比例为环氧树脂：聚醚胺：三乙烯四胺：铁粉：碳酸钙=65:10.5:7：12:5.5；
钛合金筒体元素组成为：化学组成为（重量百分比）：Ni: 2.6﹪，Mg：1.7﹪，Zn：1.6﹪，Ca：0.88﹪，Cu ：0.79﹪，Sn：0.59﹪，Bi：0.38﹪，Cr：0.27﹪，Mo：0.086﹪，W：0.066﹪，Y：0.028﹪，余量为Ti及不可避免的杂质；
钛合金筒体的制备方法：包括以下步骤：按照上述钛合金筒体元素组成配料，先将纯铜加入到熔炼炉中，炉温控制在1750℃，待纯钛熔化后，炉温降到1740℃加入镍钛中间合金，后将炉温降低到1730℃加入镁钛中间合金；后将炉温降低到1720℃加入锌钛中间合金；后将炉温降低到1710℃加入其他合金元素，后炉温升高到1730℃，搅拌10分钟，静置20分钟，扒渣，后加入覆盖剂，静置30分钟后再次扒渣，之后对进行浇注；浇注温度为1700℃；得到的筒体进行热处理：首先将筒体进行加热升温至1000℃，升温速率130℃/小时，保温6小时，之后进行淬火处理，淬火介质为水，淬火后将筒体从室温加热至800℃，升温速率100℃/小时，保温2小时，后降温至600℃，降温速率50℃/小时，保温2小时，后再次降温至400℃，降温速率90℃/小时，保温6小时，后空冷至室温，得到最终的钛合金筒体。

Claims (1)

1.一种道路用缓冲柱，缓冲柱呈圆柱型，缓冲柱芯部为颗粒增强泡沫铝基复合材料，芯部外围包裹弹性材料层，弹性材料层外为钛合金筒体，其特征在于：
所述颗粒增强泡沫铝基复合材料采取以下制备方法制备：
准备铝合金锭，其成分百分比为：Cr 3.6﹪， Ni 1.7﹪，Mo 0.78﹪，Mg 0.16﹪，Zn0.18﹪，Fe 0.079﹪，Ce 0.039﹪，Nb 0.018﹪，余量为Al；
将上述铝合金熔化升温至700℃～760℃，通入保护Ar气精炼保温10分钟；
加入占熔体总重量6-7%的增稠剂和加入占熔体质量分数10-12%的碳化硅和/或氧化铝颗粒，以500～800rpm的速度搅拌金属液大约2-3分钟，再以大约1200-1400rpm的速度搅拌1-2分钟，使粘度为2～2.3mPa .s；
加入发泡剂，发泡剂的组成为碳酸钙44%，碳酸钡5.6%，硫酸钙3.7%，碳酸钾8.6%，锰矿4.6%，焦炭9.7%，余量为生石灰；经造粒的发泡剂粒径为20-65μm. 使发泡剂在熔体中混合均匀，搅拌发泡的时间是1-1.5分钟，搅拌速度1500rpm～2000rpm.
将步骤4）所得熔体在约770℃-800℃保温3-5分钟后进行冷却，该熔体凝固后得到颗粒增强泡沫铝基复合材料；
所述弹性材料采取以下制备方法制备：
弹性材料由环氧树脂、聚醚胺、三乙烯四胺、铁粉和碳酸钙组成；其比例为环氧树脂：聚醚胺：三乙烯四胺：铁粉：碳酸钙=65:10.5:7：12:5.5；
钛合金筒体元素组成为：化学组成为（重量百分比）：Ni: 2.6﹪，Mg：1.7﹪，Zn：1.6﹪，Ca：0.88﹪，Cu ：0.79﹪，Sn：0.59﹪，Bi：0.38﹪，Cr：0.27﹪，Mo：0.086﹪，W：0.066﹪，Y：0.028﹪，余量为Ti及不可避免的杂质；
钛合金筒体的制备方法：包括以下步骤：按照上述钛合金筒体元素组成配料，先将纯铜加入到熔炼炉中，炉温控制在1750℃，待纯钛熔化后，炉温降到1740℃加入镍钛中间合金，后将炉温降低到1730℃加入镁钛中间合金；后将炉温降低到1720℃加入锌钛中间合金；后将炉温降低到1710℃加入其他合金元素，后炉温升高到1730℃，搅拌10分钟，静置20分钟，扒渣，后加入覆盖剂，静置30分钟后再次扒渣，之后对进行浇注；浇注温度为1700℃；得到的筒体进行热处理：首先将筒体进行加热升温至1000℃，升温速率130℃/小时，保温6小时，之后进行淬火处理，淬火介质为水，淬火后将筒体从室温加热至800℃，升温速率100℃/小时，保温2小时，后降温至600℃，降温速率50℃/小时，保温2小时，后再次降温至400℃，降温速率90℃/小时，保温6小时，后空冷至室温，得到最终的钛合金筒体。
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