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电子铝箔轧制基础油成份与性能的研究
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摘要
本文在研究铝材轧制过程中润滑机理基础上,展开了对电子铝箔轧制基础油成份与理化性能、摩擦学性能及热稳定性能关系的实验性研究。
     实验选用目前国内厂家普遍使用的低硫、低芳烃铝材轧制基础油,并选用了wylor10和wylor12、CSA-P三种复合添加剂。运用气相色谱-质谱联用技术对基础油的物质组成进行了分析,运用TG-DTA热分析技术对基础油的热稳定性能进行了分析,并对基础油和轧制油的理化性能、摩擦学性能、退火清洁性能和抗氧化性能进行了测定。结果表明:
     (1)铝材轧制基础油粘度随平均碳原子数增加而增大;在平均碳原子数相同的情况下,正构烷烃基础油的粘度,低于含有适当异构烷烃和环烷烃的加氢饱和基础油的粘度。基础油的闪点随着低碳成份含量的增加呈现下降的趋势,而初馏点与低碳成份也有很大关系。
     (2)含有环烷烃的加氢基础油对添加剂的敏感性优于正构烷烃基础油;随着平均碳原子数的增大,无论是正构烷烃基础油还是加氢基础油,以它们配成轧制油的油膜承载能力都是增加的;轧制油的油膜强度主要由添加剂的性能来决定,在添加剂一定的情况下,基础油同样对摩擦学性能有一定影响。
     (3)对于铝材轧制基础油而言,加氢基础油的退火清洁性能可以与正构烷烃基础油相媲美;对于轧制油而言,退火性能很大一部分要由添加剂来决定。加氢基础油的热安定性主要与低碳成份有关,当碳原子数分布相当时,正构烷烃热安定性和氧化安定性最好,链烷烃次之,环烷烃相对较差。
The relation between Chemical Composition of stock oil for rolling electronic Aluminium foil and physical-chemical properties,tribological properties, functional properties were studied in this paper, on the basis of analyzing lubrication mechanism during the Aluminum rolling process.
     Several typical stock oils with low content of sulfur and aromatic hydrocarbon were selected in this experiment. Their chemical compositions were analysed using GC-MS technique. thermal stabilities and the thermal stabilities were analysed by TG-DTA technique.They were respectively mixed with three additives to confect rolling oils, and then the physical-chemical properties, tribological capabilities,anneal cleaning capabilities of the rolling oils were tested.The results show as below:
     (1) The viscosity of hydrotreating stock oils in Aluminum rolling increase with the increase of the average Carbon atomicity. In the conditions of the same carbon atomicity, the viscosity of the n-alkane stock oil is the lowest. It will increase when alkane and cyclanes added. The flash point of stock oils descend as the increase of the lower carbon atomicity which also have a big effect on distillation range.
     (2) The stock oil contained cyclanes is more sensitive to additives than that composed of n-alkane. As the increase of the average carbon atomicity, the film strength of hydrotreating stock oils and hydrotreating rolling oils rise. The tribological properties of rolling oils are mainly determined by additives, while the stock oils are also play an important role on the tribological properties when the additives are determined.
     (3) For stock oils used in rolling Aluminum ,the anneal cleaning capabilities of the hydrotreating stock oil could catch up with the n-alkane stock oil, the anneal cleaning capability of rolling oil is mostly decided by the additives. The thermal stability of the stock oil is mostly determined by the lower carbon atomicity content.When the distribution of carbon atomicity of the stock oils are the same, the thermal stability and oxidating stability of the n-alkane stock oil are the best, that of the cyclanes are the worse and the cyclanes are the worst.
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