CN106810777A - 一种高强度活塞杆复合材料及其制备方法 - Google Patents
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Abstract
本发明涉及活塞杆生产技术领域,具体涉及一种高强度活塞杆复合材料及其制备方法;上述活塞杆包括杆芯层、过渡层和表层,所述杆芯层材料为38CrMoAlA钢或复合工程塑料,所述过渡层材料为AlMgB14‑TiB2复合材料,所述表层材料为聚晶体立方氮化硼镀层;本发明通过在活塞杆杆体上由内而外依次设置杆芯层、过渡层和表层,使得制得的活塞杆具有内层高强韧性,外层高硬度、高耐磨的优良特性。
Description
技术领域
本发明涉及活塞杆生产技术领域,具体涉及一种高强度活塞杆复合材料及其制备方法。
背景技术
活塞杆多用于压缩机等产品中,是支持活塞做功的连接部件,大部分应用在油缸、气缸运动执行部件中,是一个运动频繁、技术要求高的运动部件。因为活塞杆的工作环境温度高、磨擦频繁,所以要求活塞杆在硬度、耐磨性、摩擦系数、使用寿命方面有较高要求,传统的活塞杆虽然已有多年改进,但其硬度、耐磨性、摩擦系数、使用寿命的综合性能还是不足。
发明内容
针对现有技术的不足,本发明提供了一种高强度活塞杆复合材料,通过在活塞杆杆体上由内而外依次设置杆芯层、过渡层和表层,使得制得的活塞杆具有内层高强韧性,外层高硬度、高耐磨的优良特性,本发明还提供了它的制备方法。
为实现以上目的,本发明通过以下技术方案予以实现:
一种高强度活塞杆复合材料,包括杆芯层、过渡层和表层,所述杆芯层材料为38CrMoAlA钢或复合工程塑料,所述过渡层材料为AlMgB14-TiB2复合材料,所述表层材料为聚晶体立方氮化硼镀层。
进一步的,所述复合工程塑料选自玻璃纤维改性聚苯乙烯树脂、聚碳酸酯改性环氧树脂中的其中一种。
进一步的,所述AlMgB14-TiB2复合材料的制备方法为:以单质铝粉、镁粉和硼粉为反应原料,在以90℃/min的升温速率下达到1380℃时,保温反应15-18分钟得到。
进一步的,按重量份计,所述玻璃纤维改性聚苯乙烯树脂包括下述原料:聚苯乙烯55-70份,玻璃纤维4-8份,硅烷偶联剂0.1-1份,聚苯乙烯马来酸酐4-8份。
进一步的,按重量份计,所述聚碳酸酯改性环氧树脂包括下述原料:聚碳酸酯35-42份,铅粉2-6份,环氧树脂8-16份,助剂0.5-4份。
一种高强度活塞杆复合材料的制备方法,包括如下步骤:
(1)制备杆芯:通过退火、烧结工艺/挤压造粒成型工艺制得活塞杆杆芯;
(2)沉积过渡层:将设备抽真空,以氩气为保护气,沉积AlMgB14-TiB2复合材料至杆芯上;
(3)沉积表层:将设备抽真空,调节Ar/N2/C2H2比例至1:16:2,沉积聚晶体立方氮化硼层,厚约0.5μm-2μm。
本发明的有益效果为:
本发明通过在活塞杆杆体上由内而外依次设置杆芯层、过渡层和表层,形成内层高强韧性,外层高硬度、高耐磨的活塞杆实体,其多层涂层的硬度为25GPa~55GPa,表面摩擦系数为0.1~0.4,相比传统的机械加工及表面处理后的活塞杆能显著地降低摩擦,提高耐磨性,延长单件使用寿命;而且,在没有损坏杆体的前提下,易于进行多次修复,降低成本。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明的实施例,对本发明实施例中的技术方案进行清楚、完整地描述。基于本发明中的实施例,本领域普通技术人员在没有作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。
实施例1:
一种高强度活塞杆复合材料,包括以38CrMoAlA钢为原材料的杆芯层、以AlMgB14-TiB2复合材料为原材料的过渡层和以聚晶体立方氮化硼镀层为原材料的表层;
其制备方法,包括如下步骤:
(1)制备杆芯:通过退火、烧结工艺制得38CrMoAlA钢型活塞杆杆芯;
(2)制备AlMgB14-TiB2复合材料:以单质铝粉、镁粉和硼粉为反应原料,在以90℃/min的升温速率下达到1380℃时,保温反应15-18分钟得到;
(3)沉积过渡层:将设备抽真空,以氩气为保护气,沉积AlMgB14-TiB2复合材料至杆芯上;
(4)沉积表层:将设备抽真空,调节Ar/N2/C2H2比例至1:16:2,沉积聚晶体立方氮化硼层,厚约0.5μm-2μm。
实施例2:
一种高强度活塞杆复合材料,包括以玻璃纤维改性聚苯乙烯树脂为原材料的杆芯层、以AlMgB14-TiB2复合材料为原材料的过渡层和以聚晶体立方氮化硼镀层为原材料的表层;
其中,玻璃纤维改性聚苯乙烯树脂包括下述原料:聚苯乙烯55-70份,玻璃纤维4-8份,硅烷偶联剂0.1-1份,聚苯乙烯马来酸酐4-8份;
其制备方法,包括如下步骤:
(1)制备杆芯:按上述重量份数进行挤压、造粒、成型工艺制得玻璃纤维改性聚苯乙烯树脂型活塞杆杆芯;
(2)制备AlMgB14-TiB2复合材料:以单质铝粉、镁粉和硼粉为反应原料,在以90℃/min的升温速率下达到1380℃时,保温反应15-18分钟得到;
(3)沉积过渡层:将设备抽真空,以氩气为保护气,沉积AlMgB14-TiB2复合材料至杆芯上;
(4)沉积表层:将设备抽真空,调节Ar/N2/C2H2比例至1:16:2,沉积聚晶体立方氮化硼层,厚约0.5μm-2μm。
实施例3:
一种高强度活塞杆复合材料,包括以聚碳酸酯改性环氧树脂为原材料的杆芯层、以AlMgB14-TiB2复合材料为原材料的过渡层和以聚晶体立方氮化硼镀层为原材料的表层;
其中,聚碳酸酯改性环氧树脂包括下述原料:聚碳酸酯35-42份,铅粉2-6份,环氧树脂8-16份,助剂0.5-4份;
其制备方法,包括如下步骤:
(1)制备杆芯:按上述重量份数进行挤压、造粒、成型工艺制得聚碳酸酯改性环氧树脂型活塞杆杆芯;
(2)制备AlMgB14-TiB2复合材料:以单质铝粉、镁粉和硼粉为反应原料,在以90℃/min的升温速率下达到1380℃时,保温反应15-18分钟得到;
(3)沉积过渡层:将设备抽真空,以氩气为保护气,沉积AlMgB14-TiB2复合材料至杆芯上;
(4)沉积表层:将设备抽真空,调节Ar/N2/C2H2比例至1:16:2,沉积聚晶体立方氮化硼层,厚约0.5μm-2μm。
以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。
Claims (6)
1.一种高强度活塞杆复合材料,包括杆芯层、过渡层和表层,其特征在于,所述杆芯层材料为38CrMoAlA钢或复合工程塑料,所述过渡层材料为AlMgB14-TiB2复合材料,所述表层材料为聚晶体立方氮化硼镀层。
2.如权利要求1所述的高强度活塞杆复合材料,其特征在于,所述复合工程塑料选自玻璃纤维改性聚苯乙烯树脂、聚碳酸酯改性环氧树脂中的其中一种。
3.如权利要求1所述的高强度活塞杆复合材料,其特征在于,所述AlMgB14-TiB2复合材料的制备方法为:以单质铝粉、镁粉和硼粉为反应原料,在以90℃/min的升温速率下达到1380℃时,保温反应15-18分钟得到。
4.如权利要求2所述的高强度活塞杆复合材料,其特征在于,按重量份计,所述玻璃纤维改性聚苯乙烯树脂包括下述原料:聚苯乙烯55-70份,玻璃纤维4-8份,硅烷偶联剂0.1-1份,聚苯乙烯马来酸酐4-8份。
5.如权利要求2所述的高强度活塞杆复合材料,其特征在于,按重量份计,所述聚碳酸酯改性环氧树脂包括下述原料:聚碳酸酯35-42份,铅粉2-6份,环氧树脂8-16份,助剂0.5-4份。
6.一种如权利要求1-5中任一项所述的高强度活塞杆复合材料的制备方法,其特征在于,包括如下步骤:
(1)制备杆芯:通过退火、烧结工艺/挤压造粒成型工艺制得活塞杆杆芯;
(2)沉积过渡层:将设备抽真空,以氩气为保护气,沉积AlMgB14-TiB2复合材料至杆芯上;
(3)沉积表层:将设备抽真空,调节Ar/N2/C2H2比例至1:16:2,沉积聚晶体立方氮化硼层,厚约0.5μm-2μm。
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CN101374785A (zh) * | 2005-04-26 | 2009-02-25 | 六号元素(产品)(控股)公司 | 立方氮化硼密实体 |
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