CN107325867A - 一种发动机润滑油及其制备方法 - Google Patents

一种发动机润滑油及其制备方法 Download PDF

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CN107325867A
CN107325867A CN201710468348.7A CN201710468348A CN107325867A CN 107325867 A CN107325867 A CN 107325867A CN 201710468348 A CN201710468348 A CN 201710468348A CN 107325867 A CN107325867 A CN 107325867A
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lubricating oil
engine lubricating
borate
alpha olefin
complexing agent
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李跃翔
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Guangzhou Kang Volcker Lubricating Oil Co Ltd
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Abstract

本发明公开了一种发动机润滑及其制备方法,包括以下重量百分比的成分:VHVI 250N基础油34%‑38%;聚α‑烯烃PAO4 16‑19%聚α‑烯烃PAO150 10‑11%;复合剂14.5%‑15.5%;水杨酸钙1.5%‑1.7%;有机钼盐0.25%‑0.35%;磺酸镁0.6%‑0.7%;硼酸酯0.24%‑0.26%;烷基萘7.4‑7.7%;多元醇酯10‑13%;其中,复合剂为雪佛龙OLOA59110;其中以上各成分百分比含量相加为100%。本发明所提供的发动机润滑油,对环境友好,对发动机的磨损程度轻微,且换油里程长。

Description

一种发动机润滑油及其制备方法
技术领域
本发明属于润滑油领域,特别涉及一种发动机润滑油及其制备方法。
背景技术
润滑油是用在各种类型汽车、机械设备上以减少摩擦,保护机械及加工件的液体或半固体润滑剂,主要起润滑、清净分散、辅助冷却、防锈、清洁、密封和缓冲等作用。
目前常用的润滑油有以下几个缺点:磷超标、硫偏高,对水和土壤污染大,与生态环境的和谐发展有冲突。碱值保持能力不足,换油里程偏短,不利于提高社会和经济效益。使用了OCP类粘度指数改进剂,抗剪切能力差,难以实现环保长效。
发明内容
本发明的目的是提供一种发动机润滑油,对环境友好,且换油里程长。
进一步地,有必要提供上述发动机润滑油的制备方法。
为解决上述技术问题,本发明提供了一种发动机润滑油,包括以下重量百分比的成分:
VHVI 250N基础油34%-38%;
聚α-烯烃PAO4 16-19%;
聚α-烯烃PAO150 10-11%;
复合剂 14.5%-15.5%;
水杨酸钙 1.5%-1.7%;
有机钼盐 0.25%-0.35%;
磺酸镁 0.6%-0.7%;
硼酸酯 0.24%-0.26%;
烷基萘 7.4-7.7%;
多元醇酯 10-13%;
其中,复合剂为雪佛龙OLOA59110;
其中以上各成分百分比含量相加为100%。
其中,雪佛龙OLOA 59110的性能等级为CI-4+,粘性规格为10W-40;
VHVI250N要求在100℃下的运动粘度(KV)为不小于7.3mm2/s;低温动力粘度(-25℃CCS),不大于4200mPa.S。
其中,所述的发动机润滑油,优选包括以下重量百分比的成分:
VHVI250N 35.2%;
聚α-烯烃PAO4 16.5%;
聚α-烯烃PAO150 10.9%;
复合剂雪佛龙OLOA59110 15%;
水杨酸钙 1.6%;
磺酸镁 0.65%;
钼盐 0.3%;
硼酸酯 2.5%;
烷基萘 7.6%
多元醇酯 11.75%;
其中,雪佛龙OLOA 59110的性能等级为CI-4+。粘性规格为10W-40
其中,VHVI250N要求在100℃下的运动粘度(KV)为不小于7.3mm2/s;低温动力粘度(-25℃CCS),不大于4200mPa.S。
其中,聚α-烯烃PAO4:来自美国美孚公司的产品,型号规格为PAO4,100℃运动粘度4mm2/s,
聚α-烯烃PAO150:来自美国美孚公司的产品,型号规格为PAO150,100℃运动粘度150mm2/s;
其中,所述烷基萘是十八烷基萘,所述有机钼盐为烷基水杨酸钼;
其中,所述多元醇酯是三羟甲基丙烷酯或者饱和脂肪酸多元醇酯。
其中,所述硼酸酯三乙醇胺硼酸酯。
如上所述的发动机润滑油的方法,包括以下步骤:
步骤1)将原材料按重量比备料;
步骤2)加入VHVI 250N基础油,升温至45℃,再依次加入多元醇酯、聚α-烯烃、烷基萘、复合剂,升温至55℃恒温,
步骤3)再加入有机钼盐,再依次加入水杨酸钙、磺酸镁和硼酸酯,恒温55℃搅拌均匀3小时以上即得润滑油。
制备过程中严格控制水分含量不大于痕迹:依据GB/T 260-1977(2004)实验规范测试水分的微含量。
相对上述背景技术,本发明所提供的发动机润滑油,对环境友好,对发动机的磨损程度轻微,且换油里程长。
附图说明
图1为旧油分析粘度性能测试结果;
图2为旧油分析碱值测试结果;
图3为旧油分析酸值测试结果;
图4为旧油分析铁含量测试结果;
图5为旧油分析铝含量测试结果;
图6为旧油分析铜含量测试结果;
图7为旧油分析铅含量测试结果。
具体实施方式
本发明的核心是提供一种发动机润滑油及其制备方法。为了使本技术领域的人员更好地理解本发明方案,下面结合具体实施方式对本发明作进一步的详细说明。
实施例原材料来源:
VHVI 250N基础油:来自壳牌公司的GTL250N;
聚α-烯烃PAO4:来自美国美孚公司的产品,型号规格为PAO4,100℃运动粘度4mm2/s,
聚α-烯烃PAO150:来自美国美孚公司的产品,型号规格为PAO150,100℃运动粘度150mm2/s;
多元醇酯:三羟甲基丙烷酯;
烷基萘:十八烷基萘;
有机钼盐:来自润英联公司的烷基水杨酸钼;
硼酸酯:三乙醇胺硼酸酯;
复合剂:来自雪佛龙,型号OLOA59110。
对实施例润滑油进行行车试验,行车试验的参数如下。
发动机参数
行车条件
对取样的发动机润滑油进行旧油分析,对取样油进行粘度测试,测试方法为程序IIIFHD,标准为ASTM D6984,当取样油的粘度变化幅度为新油的±20%时,即为换油里程。对取样油进行TBN(碱值)、TAN(酸值)、铁、铝、铜、铅的含量测试,测试标准为ASTMD4951,当碱值小于8时或者酸值大于5时,即为换油里程,同时旧油中铁含量大于70mg/kg、铝含量大于15mg/kg、铜含量大于5mg/kg、铅含量大于10mg/kg时视为机件或者摩擦副发生了过量/严重磨损,并将换油里程记录于表2中,并将取样油的TBN(碱值)列于表3、TAN(酸值)列于表4中,铁的含量列于表5中,铝的含量列于表6中,铜的含量列于表7中,铅的含量列表8中
对发动机的磨损测试:
Mack T-12试验,测试标准ASTM 7422,将缸套磨损量和顶环失重的测量结果列于表2。
实施例1-5和对比例1-2
一种发动机润滑油的制备方法,步骤1)将原材料按表1所示的重量比备料;
步骤2)加入VHVI 250N基础油,升温至45℃,再依次加入多元醇酯、聚α-烯烃、烷基萘、复合剂,升温至55℃恒温;
步骤3)再加入有机钼盐,再依次加入水杨酸钙、磺酸镁和硼酸酯,恒温55℃搅拌均匀即得3小时以上润滑油。
制备过程中严格控制水分含量不大于痕迹:依据GB/T 260-1977(2004)实验规范测试产品中的水分的微含量。将所润滑油进行换油里程测试、旧油分析和发动机磨损测试,测试结果列于表2-表8中。
对比例3
一种发动机润滑油,其配方如下,
加入59110,升温至45℃,再依次加入,8065、PPD、XOM EHC 50和XOM EHC 110,恒温至55℃搅拌均匀三小时,即得润滑油。将所润滑油进行换油里程测试和发动机磨损测试,测试结果列于表2中。
表1 实施例和对比例原料配比
表2 润滑油性能测试结果
表3 TBN(碱值),单位mg KOH/g
表4 TAN(酸值),单位mg KOH/g
表5 铁的含量,单位mg/kg
表6 铝的含量,单位mg/kg
表7 中铜含量,单位mg/kg
表8 铅的含量,单位mg/kg
实施例6
本发明提供了一种发动机润滑油,由以下成分按其重量份组成:
GTL250N 35.2%;
聚α-烯烃PAO4 16.5%;
聚α-烯烃PAO150 10.9%;
复合剂雪佛龙OLOA59110 15%;
水杨酸钙 1.6%;
磺酸镁 0.65%;
钼盐 0.3%;
硼酸酯 2.5%;
烷基萘 7.6%
多元醇酯 11.75%;
其中,雪佛龙OLOA59110的性能等级为CI-4+,粘性品质为10W-40
其中,GTL250N在100℃下的运动粘度(KV)是7.6mm2/s;
低温动力粘度(-30℃CCS)是4020mPa.S。
制备方法为:
步骤1)将原材料按重量比备料;
步骤2)加入VHVI 250N基础油,升温至45℃,再依次加入多元醇酯、聚α-烯烃、烷基萘、复合剂,升温至55℃恒温。
步骤3)再加入有机钼盐,再依次加入水杨酸钙、磺酸镁和硼酸酯,恒温55℃搅拌均匀3小时以上即得润滑油。
对实施例6的润滑油进行性能分析,测试结果如下:
发动机试验摘要
台架和密封性能数据(OR F60181D-A)API CI-4+/CI-4/SL
将实施例6所得发动机润滑油,进行行车试验。
行车试验目的为测试润滑油在中国运行条件下的性能表现。
行车试验所用发动机
行车条件
对取样油进行旧油分析,其粘度性能测试见图1,碱值测试结果见图2,酸值测试结果见图3,铁、铝、铜和铅的含量分别见图4、图5、图6和图7。
结果表明润滑油在装配潍柴发动机的福田重卡行车试验中性能表现优异。旧油分析显示油品表现出优异的抗磨保护、氧化稳定性、粘度控制和碱值保持力,换油周期达10-12万公里。
对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的,本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下,在其它实施例中实现。因此,本发明将不会被限制于本文所示的这些实施例,而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (7)

1.一种发动机润滑油,其特征在于包括以下重量百分比的成分:
VHVI 250N基础油 34%-38%;
聚α-烯烃PAO4 16-19%;
聚α-烯烃PAO150 10-11%;
复合剂 14.5%-15.5%;
水杨酸钙 1.5%-1.7%;
有机钼盐 0.25%-0.35%;
磺酸镁 0.6%-0.7%;
硼酸酯 0.24%-0.26%;
烷基萘 7.4-7.7%;
多元醇酯 10-13%;
其中,复合剂为雪佛龙OLOA59110;
其中以上各成分百分比含量相加为100%。
2.如权利要求1所述的发动机润滑油,其特征在于:
雪佛龙OLOA 59110的性能等级为CI-4+,粘性规格为10W-40;
VHVI250N要求在100℃下的运动粘度(KV)为不小于7.3mm2/s;低温动力粘度(-25℃CCS),不大于4200mPa.S。
3.如权利要求2所述的发动机润滑油,其特征在于包括以下重量百分比的成分:
VHVI250N 35.2%;
聚α-烯烃PAO4 16.5%;
聚α-烯烃PAO150 10.9%;
复合剂雪佛龙OLOA59110 15%;
水杨酸钙 1.6%;
磺酸镁 0.65%;
钼盐 0.3%;
硼酸酯 2.5%;
烷基萘 7.6%;
多元醇酯 11.75%;
其中,雪佛龙OLOA59110的性能等级为CI-4+,粘性规格为10W-40
其中,VHVI250N要求在100℃下的运动粘度(KV)为不小于7.3mm2/s;低温动力粘度(-25℃CCS),不大于4200mPa.S。
4.如权利要求1-3任一项所述的发动机润滑油,其特征在于:
所述烷基萘是十八烷基萘,所述有机钼盐为烷基水杨酸钼。
5.如权利要求1-3任一项所述的发动机润滑油,其特征在于:
所述多元醇酯是三羟甲基丙烷酯或者饱和脂肪酸多元醇酯。
6.如权利要求1-3任一项所述的发动机润滑油,其特征在于:
所述硼酸酯三乙醇胺硼酸酯。
7.一种制备如权利要求1-6任一项所述的发动机润滑油的方法,包括以下步骤:
步骤1)将原材料按重量比备料;
步骤2)加入VHVI 250N基础油,升温至45℃,再依次加入多元醇酯、聚α-烯烃、烷基萘、复合剂,升温至55℃恒温,
步骤3)再加入有机钼盐,再依次加入水杨酸钙、磺酸镁和硼酸酯,恒温55℃搅拌均匀3小时以上即得润滑油。
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