The thermal weight loss of asphaltine in the pitch road building oil modified with different additives is studied with derivative thermo - gravimetric analyzer in inertatmosphere.
在惰性气氛中，利用差热分析仪研究了不同添加剂改质煤沥青筑路油中沥青质的热失重情况。
2
The influences of reaction conditions such as reaction time, temperature, solvent and inertatmosphere to the reaction result were discussed.
讨论了反应时间、反应温度、溶剂和惰性气氛对反应的影响。
3
Different from the traditional active metal brazing, RAB uses a liquid-phase oxide-metal melt at high temperature and the process does not require a vacuum or inertatmosphere.