Analyze the flow activation and low - temperature jellification theories that well illustrate the low - temperature properties of environment friendly lubricants , then study and discuss in perspective of molecule the low - temperature flowability of environment friendly lubricants
2.
The thesis introduces the general engine development , domestic and foreign , analyses the present situation and future development trend of environment friendly lubricants , studies on theories of flow activation and low - temperature jellification which well illustrate the low - temperature property of environment friendly lubricants , researches the low - temperature flowability of environment friendly lubricants in perspective of molecule , then theoretically synthesizes plastic and flow principles of environment friendly lubricants and finally reaches a ground to explain low - temperature properties of environment friendly lubricants
3.
3 . based jellification dynamics theory that the larger the jellification activation energy , the greater the lubricant ' s jelling tendency , it is advisable to analysis the whole jellification process in attempt to find out maximum jellification activation energy emax and its ambient temperature tmax , as a ground for judging the lubricant ' s pumpability
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