CN106947570B - 一种抗磨液压油及其制备方法 - Google Patents
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Abstract
本发明涉及一种抗磨液压油及其制备方法,所述抗磨液压油按质量百分含量由以下组分组成:(1)基础油80~85%;(2)季戊四醇四异辛酸酯15~20%;(3)复合添加剂0.5~1.0%,通过将三类基础油和季戊四醇四异辛酸酯分别加入调和釜,再加入复合添加剂,调和釜控温在50~60℃搅拌1~2h,调和过程中控制粘度在65~72mm2/s,得到所述抗磨液压油。本发明半合成抗磨液压油综合了矿物油以及酯类合成油的优点,除能满足机械液压设备在一般条件下使用外,还能满足大型机械设备在极端条件(例如‑30~80℃)下正常工作,可广泛运用于各种大型机械的液压油系统,保证设备正常运转,有效提高机器、设备或零部件的使用寿命,解决因摩擦磨损、润滑保养或维修换油等难题。
Description
技术领域
本发明涉及润滑油加工领域,尤其涉及一种抗磨液压油及其制备方法。
背景技术
抗磨液压油是在抗氧防锈型液压油基础上发展来的,与普通的抗氧防锈型液压油相比,它的制备技术比较复杂。抗磨液压油在中、高压系统中使用时,不仅具有良好的抗氧防锈性,而且其抗磨性尤为突出。在高原地区、严寒地区、桥隧施工、酷热环境等进行施工作业时,这些工业设备的液压系统所使用的液压油必须完全符合相关要求,既满足设备正常运行,减少磨损,又能减少对环境的污染,是抗磨液压油的发展趋势。
目前市场上大多数液压油使用一类基础油和添加剂调制的,难以满足设备的液压系统在较极端的条件下工作,而用于液压油调配的基础油和添加剂的选择至关重要。矿物基础油中的三类油是通过深度加氢制得,相对于一类、二类基础油,有其良好的粘温性、热氧化安定性、化学稳定性等性能。相对于矿物油,合成油具有更优良的粘温性、低温性、高温性、热氧化安定性、化学稳定性、降解性等等,这也是合成油不断高速发展的原因,以酯类油POE,聚α-烯烃PAO和聚醚这三类油广泛使用。
酯类油使用温度高、倾点低、低温流动性好、粘温性能良好,能与矿物油混溶,低挥发,无毒可降解,价格中等;缺点是水稳定性较差,防腐性能中等。聚α-烯烃加氧化抑制剂时有很高的稳定性,很好的粘温性,水解稳定性和防腐性良好,但生物降解较难。聚醚也具有优良的性能,尤其适用温度高,但与其他油品或添加剂的相容性一般。
随着我国持续推进西部大开发以及大力发展基础设施建设,节能环保始终是立足国家战略来考虑。选择三类基础油、酯类油、复合添加剂来生产满足较极端条件下机械设备液压系统的液压油,以满足其润滑性能,延长设备的使用寿命,又使环境污染最大限度地控制,具有重要的意义。
发明内容
为解决上述技术问题,本发明提供了一种抗磨液压油及其制备方法,本发明提供的半合成抗磨液压油综合了矿物油以及酯类合成油的优点,除能满足机械液压设备在一般条件下使用外,还能满足大型机械设备在极端条件(-30~80℃)下正常工作,可广泛运用于各种大型机械的液压油系统,保证设备正常运转,有效提高机器、设备或零部件的使用寿命,解决因摩擦磨损、润滑保养或维修换油等难题。
为达此目的,本发明采用了以下技术方案:
第一方面,本发明提供了一种抗磨液压油,其按质量百分含量由以下组分组成:
(1)基础油80~85%;
(2)季戊四醇四异辛酸酯15~20%;
(3)复合添加剂0.5~1.0%。
本发明提供的抗磨液压油在抗磨性、润滑性、低温性、高温性、热氧化安定性能方面部分接近或达到全合成液压油(PAO为基础油)性能指标,而生物降解性和经济性优于全合成液压油,其不仅能满足机械液压设备在一般条件下使用外,还能满足大型机械设备在极端条件(-30~80℃)下正常工作,可广泛运用于在高原地区、严寒地区、桥隧施工、酷热环境等作业的大型机械的液压油系统,保证设备正常运转,有效提高机器、设备或零部件的使用寿命,解决因摩擦磨损、润滑保养或维修换油等难题。
根据本发明,所述抗磨液压油按质量百分含量优选由以下组分组成:
(1)基础油80~82%;
(2)季戊四醇四异辛酸酯18~20%;
(3)复合添加剂0.6~0.8%。
本发明中,所述基础油占基础油和季戊四醇四异辛酸酯总量的质量百分含量为80~85%,例如80%、80.5%、81%、81.5%、82%、82.5%、83%、83.5%或85%,所述季戊四醇四异辛酸酯占基础油和季戊四醇四异辛酸酯总量的质量百分含量为15~20%,例如15%、16%、17%、17.5%、18%、19%、19.5或20%,所述复合添加剂占基础油和季戊四醇四异辛酸酯总量的质量百分含量为0.5~1.0%,例如0.5%、0.6%、0.7%、0.8%、0.9%或1.0%。
其中,所述基础油和季戊四醇四异辛酸酯的总和为100%,所述复合添加剂的含量是指其占到基础油和季戊四醇四异辛酸酯总和的质量百分含量。
根据本发明,所述抗磨液压油在40℃的运动粘度为65~72mm2/s,例如65mm2/s、66mm2/s、68mm2/s、70mm2/s或72mm2/s。
根据本发明,所述基础油按质量百分含量由以下组分组成:二类500N基础油65~70%(例如65%、66%、66.5%、67%、68%、69%或70%),二类150N基础油8~10%(例如8%、8.2%、8.5%、9%、9.2%、9.5%或10%),季戊四醇四异辛酸酯22~25%(例如22%、23%、23.5%、24%、24.5%或25%)。
本发明中,所述二类500N基础油的初馏点大于245℃,倾点低于-15℃,40℃运动粘度为85~92mm2/s,粘度指数大于100。
根据本发明,所述季戊四醇四异辛酸酯的初馏点为250℃,倾点低于-55℃,40℃运动粘度为40~46mm2/s,粘度指数大于100,酸值小于0.02mgKOH/g。
根据本发明,所述复合添加剂按质量百分含量由以下组分组成:
所述复合添加剂中的含量是指其各组分占基础油和季戊四醇四异辛酸酯的质量百分含量,其总和为0.5~1.0%。
本发明中,采用复合添加剂,可选择进口雅富顿复合添加剂(添加量为0.5~0.7%);也可选择国产复合添加剂(添加量为0.7~1.0%);还可选择自制复合添加剂(总添加量为0.7~1.0%)。
根据本发明,所述复合添加剂按质量百分含量由以下组分组成:
第二方面,本发明还提供了一种如第一方面所述的抗磨液压油的制备方法,其包括:
将基础油和季戊四醇四异辛酸酯分别按质量百分含量80~85%和15~20%加入调和釜,再加入0.5~1.0%复合添加剂,调和釜控温在50~60℃搅拌1~2h,调和过程中控制粘度在65~72mm2/s,得到所述抗磨液压油。
与现有技术相比,本发明至少具有以下有益效果:
本发明提供的抗磨液压油,在抗磨性、润滑性、低温性、高温性、热氧化安定性能方面部分接近或达到全合成液压油(PAO为基础油)性能指标,而生物降解性和经济性优于全合成液压油,其不仅能满足机械液压设备在一般条件下使用外,还能满足大型机械设备在极端条件(-30~80℃)下正常工作,可广泛运用于在高原地区、严寒地区、桥隧施工、酷热环境等作业的大型机械的液压油系统,保证设备正常运转,有效提高机器、设备或零部件的使用寿命,解决因摩擦磨损、润滑保养或维修换油等难题。
具体实施方式
为便于理解本发明,本发明列举实施例如下。本领域技术人员应该明了,所述实施例仅仅是帮助理解本发明,不应视为对本发明的具体限制。
实施例1
一种抗磨液压油,其按质量百分含量由以下组分组成:
(1)基础油80%;
基础油的组成为:二类500N基础油65%;二类150N基础油10%;季戊四醇四异辛酸酯25%;
(2)季戊四醇四异辛酸酯20%;
(3)复合添加剂0.731%。
其中复合添加剂的组成为:
所述抗磨液压油的制备方法,包括:
将基础油和季戊四醇四异辛酸酯导入调和釜,升温至55℃,加入复合添加剂,保持该温度搅拌1小时,得到所述抗磨液压油。
实施例2
一种抗磨液压油,其按质量百分含量由以下组分组成:
(1)基础油82%;
基础油的组成为:二类500N基础油70%;二类150N基础油8%;季戊四醇四异辛酸酯22%;
(2)季戊四醇四异辛酸酯18%;
(3)复合添加剂0.861%。
其中复合添加剂的组成为:
所述抗磨液压油的制备方法,包括:
将基础油和季戊四醇四异辛酸酯导入调和釜,升温至56℃,加入复合添加剂,保持该温度搅拌1小时,得到所述抗磨液压油。
实施例3
一种抗磨液压油,其按质量百分含量由以下组分组成:
(1)基础油85%;
基础油的组成为:二类500N基础油68%;二类150N基础油9%;季戊四醇四异辛酸酯23%;
(2)季戊四醇四异辛酸酯15%;
(3)复合添加剂0.862%。
其中复合添加剂的组成为:
所述抗磨液压油的制备方法,包括:
将基础油和季戊四醇四异辛酸酯导入调和釜,升温至60℃,加入复合添加剂,保持该温度搅拌1小时,得到所述抗磨液压油。
实施例4
一种抗磨液压油,其按质量百分含量由以下组分组成:
(1)基础油81%;
基础油的组成为:二类500N基础油69%;二类150N基础油9%;季戊四醇四异辛酸酯22%;
(2)季戊四醇四异辛酸酯19%;
(3)复合添加剂0.995%。
其中复合添加剂的组成为:
所述抗磨液压油的制备方法,包括:
将基础油和季戊四醇四异辛酸酯导入调和釜,升温至60℃,加入复合添加剂,保持该温度搅拌1.5小时,得到所述抗磨液压油。
将国内大品牌68#抗磨液压油作为对比例1,将其与实施例1~4制备得到的抗磨液压油分别测试全配方理化性能,其包括运动粘度(40℃)、粘度指数、开口闪点、倾点、铜片腐蚀、抗磨性、热安定性、水解热安定性和生物可降解性,具体结果如表1所示。
表1
通过上述实施例和对比例的结果可以看出,本发明的抗磨液压油各项指标均优于国内大品牌68#抗磨液压油;由于使用了酯类合成油调配,生物降解性均优于国内大品牌68#抗磨液压油,是一种耐极端条件高降解性半合成抗磨液压油。
申请人声明,本发明通过上述实施例来说明本发明的详细工艺设备和工艺流程,但本发明并不局限于上述详细工艺设备和工艺流程,即不意味着本发明必须依赖上述详细工艺设备和工艺流程才能实施。所属技术领域的技术人员应该明了,对本发明的任何改进,对本发明产品各原料的等效替换及辅助成分的添加、具体方式的选择等,均落在本发明的保护范围和公开范围之内。
Claims (8)
1.一种抗磨液压油,其特征在于,按质量百分含量由以下组分组成:
(1)基础油80~85%;
(2)季戊四醇四异辛酸酯15~20%;
(3)复合添加剂0.5~1.0%;
上述三种组分含量之和为100%;
所述基础油按质量百分含量由以下组分组成:二类500N基础油65~70%;二类150N基础油8~10%;季戊四醇四异辛酸酯22~25%。
2.如权利要求1所述的抗磨液压油,其特征在于,所述抗磨液压油按质量百分含量由以下组分组成:
(1)基础油80~82%;
(2)季戊四醇四异辛酸酯18~20%;
(3)复合添加剂0.6~0.8%;
上述三种组分含量之和为100%。
3.如权利要求1或2所述的抗磨液压油,其特征在于,所述抗磨液压油在40℃的运动粘度为65~72mm2/s。
4.如权利要求1所述的抗磨液压油,其特征在于,所述二类500N基础油的初馏点大于245℃,倾点低于-15℃,40℃运动粘度为85~92mm2/s,粘度指数大于100。
5.如权利要求1所述的抗磨液压油,其特征在于,所述季戊四醇四异辛酸酯的初馏点为250℃,倾点低于-55℃,40℃运动粘度为40~46mm2/s,粘度指数大于100,酸值小于0.02mgKOH/g。
6.如权利要求1所述的抗磨液压油,其特征在于,所述复合添加剂按质量百分含量由以下组分组成:
极压剂 0.5~0.8%
抗磨剂 0.1%
抗氧剂 0.05~0.2%
防锈剂 0.05~0.1%
抗乳化剂 0.03~0.06%
抗泡剂 0.001~0.01%。
7.如权利要求6所述的抗磨液压油,其特征在于,所述复合添加剂按质量百分含量由以下组分组成:
硫化异丁烯 0.5~0.8%
亚磷酸二正丁酯 0.1%
2,6-二叔丁基对甲酚 0.05~0.2%
苯并三氮唑 0.05~0.1%
胺与环氧乙烷缩聚物 0.03~0.06%
丙烯酸酯与醚共聚物 0.001~0.01%。
8.如权利要求1-7之一所述的抗磨液压油的制备方法,其特征在于,包括:
将基础油和季戊四醇四异辛酸酯分别加入调和釜,再加入复合添加剂,调和釜控温在50~60℃搅拌1~2h,调和过程中控制粘度在65~72mm2/s,得到所述抗磨液压油。
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