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在对加氢异构化油理化性质和对抗氧剂感受性能研究的基础上,并作为基础油研制了EGD风冷二冲程汽油机油和TC-W3水冷二冲程汽油机油。结果表明,加氢异构化基础油对抗氧剂的感受性较好,采用加氢异构化基础油研制的EGD风冷二冲程汽油机油和TC-W3水冷二冲程汽油机油能够满足国际标准化组织的ISO-LEGD风冷二冲程汽油机油和美国船舶制造商协会NMMA规定的TC-W3水冷二冲程汽油机油质量指标要求。 相似文献
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本文介绍了Ⅲ档二冲程汽油机油(L—ERC)的研制方法,使用大庆生产的基础油,加入金属清净剂与无灰分散剂复合,生产的Ⅲ档二冲程汽油机油经台架试验、道路试验其质量达到了Ⅲ档二冲程汽油机油的质量要求。 相似文献
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水冷二冲程汽油机油主要应用于水上作业的舷外机(摩托艇)等动力机械,高档的水冷二冲程汽油机油既要具有环境友好的清净性,又要具备优秀的润滑性,才能保证其可靠性。结合国际上的有关标准,建立了与NMMA等效的TGW3水冷二冲程汽油机润滑油发动机台架评定装置,进行了高档水冷汽油机油(TC—W3级)的润滑性评定试验。结果表明,该润滑性评定装置运行稳定,具有良好的区分性,试验手段科学,试验数据准确可靠。 相似文献
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利用成焦板试验机、四球试验机、摩擦试验机等模拟方法及二冲程发动机试验,考究了聚异丁烯相对分子质量与加入量、矿物油加入量、稀释溶剂用量及添加剂配伍与二冲程汽油机油润滑性、静净性、排烟性之间的关系,成功地研制了符合ISO13738-2000EGD级二冲程汽油机油规格标准要求,并且具有良好的润滑性、清净性及低排烟性的低烟型GED级二冲程汽油机油 相似文献
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论述了FC二冲程汽油机油的研制过程,该研制油品可以满足日本JASOM345FC级油品的质量要求,文中还简述了几种国外,国内及加氢精帽的聚异丁烯热氧化性能,聚异丁二冲程汽油机油中的应用机理。并给出了试验数据和评定数据。 相似文献
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低分子聚异丁烯在二冲程汽油机油中的应用 总被引:1,自引:0,他引:1
本文通过对聚异丁烯(PIB)性能分析及分解机理的论述,结合有关具体试验,论证了低分子PIB在二冲程汽油机油中具有改善油品的高温润滑性、燃烧清净性及排烟等性能,是二冲程汽油机油不可缺少的组份。 相似文献
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本文介绍了以大庆中性油研制Ⅱ档二冲程汽油机油.通过曲轴箱模拟试验、二冲程汽油发动机12h强化试验对添加剂进行筛选.将选出的产品在5.5kW二冲程汽油发动机上进行500h运转试验,并在排气量为80cm~3摩托车上进行16000km行车试验.试验结果表明,研制的产品性能与目前国外同类产品相当. 相似文献
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发动机油压直接表征了发动机摩擦副的润滑供油状况,是从宏观上衡量发动机油润滑情况的重要参数,通过在德国BBC台架和桑塔纳化油器发动机实际行车试验中对发动机油油压特性的系统定量研究,考察了在各种发动机工况下不同粘度和质量等级发动机油的油压特性。试验结果表明:在相同工况下,发动机油油度等级是影响油压的主要因素;质量等级对油压影响不大;同一粘度等级发动机油的添加剂剂量和类型对油压贡献不大;单级油和多级油油压特性相近;同一粘度等级发动机油,其发动机转速是影响油压的主要因素,实际行车试验数据表明:各种发动机油的油压一般大于发动机厂商规定的下限值,在怠速偏低和苛刻行驶后油温偏高的共同作用下,低粘度等级发动机油会出出现油压偏低的情况,从理论上回归所得的结果表明,发动机油温度过高会大大降低循环油路发动机油粘度,从而影响油压保持和润滑性能 相似文献
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为了适应摩托车工业的发展,润滑油和摩托车生产企业联合开发了二冲程和四冲程摩托车用润滑油,而提高摩托车生产企业对车用润滑油重要性的认识、加强摩托车专用维修站的管理、增强摩托车车主的用油意识是开拓摩托车用润滑油市场的重要途径。 相似文献
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The high viscous crude oil for Shuguang No. 1 zone of Liaohe oilfield has the characteristics of high density (ρ20 = 0.9977 g.cm-3), high viscidity (ν100 = 1,223.9 mm2.s-1), and high solidifying point (SP = 48°C), which belongs to low sulfur naphthene-base crude oil. The comprehensive evaluations indicate that this oil has no gasoline fraction and the diesel oil is only 7.19%. In addition, the lubricating oil distillate is not suited to produce lubricating oil and heavy oil is not good feedstock for catalytic cracking. However, the low wax and high resin, as well as asphaltene content, make it an ideal raw material for producing paving asphalt. The vacuum residue of this crude acted as base oil and three kinds of waste oil with high aromatics and low wax content were selected as blenders. Various brands of high-grade paving asphalts meeting GB/T15180-94 (China) specification were produced by blending method. The blending effects were investigated and corresponding mathematics models were set up. 相似文献
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几种粘度指数改进剂的性能比较 总被引:1,自引:0,他引:1
主要针对乙烯-丙烯共聚物(OCP)及异戊二烯共聚物(HSD)两大类7种粘度指数改进剂进行了性能考察,得出结论:Shell260(氢化聚异戊二烯)这类星状聚合物结构合理,兼有优良的剪切稳定性及稠化能力,适合在有剪切稳定性要求的油品中使用,特别是对于调配大跨度的高档润滑油更加重要。 相似文献
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论成品油品牌销售策略 总被引:1,自引:0,他引:1
随着我国成品油市场的全面开放,成品油销售已经由过去的产品时代向品牌营销时代转变,成品油品牌营销是应对国外石油企业竞争的必要手段,是市场条件下的理性选择,也是提高产品附加值和品牌知名度的内在要求。文章从细分目标市场、丰富营销手段、市场培育和创新应用4个方面介绍如何通过品牌销售策略增加成品油的销售,以期找到成品油品牌销售策略。 相似文献
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《Food Control》2014
The consumption of extra virgin olive oil has been growing in Brazil over the years. However, as it is an expensive product, many consumers tend to substitute extra virgin olive oil with a cheaper alternative, such as vegetable oil blends (mainly a mixture of olive and soybean oils). In the preset study, different brands of oil blends were evaluated for the occurrence of 13 polycyclic aromatic hydrocarbons. The method involved liquid–liquid extraction with hexane and N,N-dimethylformamide, followed by clean-up by SPE with C18 cartridges. Analyses were carried out by HPLC with fluorescence detection. PAHs were detected in all samples analyzed and the mean sum ranged from 2.59 μg/kg to 85.30 μg/kg. A high variability in PAHs levels between brands and between different batches of the same brand was observed. Approximately 50% of the samples were in disaccording with the maximum permitted levels for BaP and PAH4 established in the Brazilian and/or European regulations. 相似文献