To understand the effect of the process on the lubrication properties of soybean milk,the physicochemical characteristics of soybean milk with different soaking temperatures were analyzed.Results showed that soaking t...To understand the effect of the process on the lubrication properties of soybean milk,the physicochemical characteristics of soybean milk with different soaking temperatures were analyzed.Results showed that soaking temperatures of 20℃and 40℃had the most positive impact on the mouthfeel of soybean milk,with the latter(40℃)yielding the lowest friction coefficient.Higher soaking temperatures(60℃and 80℃)led to larger particles,higher friction coefficients,and lower consumer acceptance.The differences in soaking temperatures caused varying degrees of protein expansion or denaturation,which interacted with polysaccharides and lipids to form substances with different particle sizes.The larger particles tended to roll on the friction pair,while the smaller particles tended to slide on the friction pair or form a droplet film,resulting in a smaller coefficient of friction.This study contributes to the understanding of the tribological behavior of particles and provided basic data for the correlation of friction coefficient and sensory.展开更多
The influence of soaking temperature on microstructure of high temperature multi-pass compression deformation for two low carbon steels(steel A:wC=0.032%and wMn=0.25%;steel B:wC=0.165%and wMn=0.38%)is studied on the t...The influence of soaking temperature on microstructure of high temperature multi-pass compression deformation for two low carbon steels(steel A:wC=0.032%and wMn=0.25%;steel B:wC=0.165%and wMn=0.38%)is studied on the thermal-mechanical simulator in order to rationalize the hot-rolling schedule of low-carbon steel and to promote the low-temperature heating technology.The results show that the microstructures of steel A are almost not affected by reducing soaking temperature,but the acicular ferrite forms in steel B when the soaking temperature is reduced from 1 200 to 1170℃,due to its smaller initial austenite grain size according to recrystallization kinetics theory.展开更多
在Through changing soaking temperature and soaking time, austenite grain growth behavior of X80 pipeline steel under different heating conditions was studied. Relationships of average grain size to soaking temperature...在Through changing soaking temperature and soaking time, austenite grain growth behavior of X80 pipeline steel under different heating conditions was studied. Relationships of average grain size to soaking temperature and time were obtained respectively. The results show that the prior austenite grains grow with the increase of soaking temperature and time. When soaking temperature is lower than 1 180 ℃, austenite grain size and growth rate are small; when it higher than 1 200 ℃, austenite grains grow rapidly and abnormal grain growth appears. For soaking at 1 180 ℃, austenite grain growth rate is initially high and then decreases when soaking time exceeds 1 h.展开更多
基金supported by the National Natural Science Foundation of China(Grants 31972033).
文摘To understand the effect of the process on the lubrication properties of soybean milk,the physicochemical characteristics of soybean milk with different soaking temperatures were analyzed.Results showed that soaking temperatures of 20℃and 40℃had the most positive impact on the mouthfeel of soybean milk,with the latter(40℃)yielding the lowest friction coefficient.Higher soaking temperatures(60℃and 80℃)led to larger particles,higher friction coefficients,and lower consumer acceptance.The differences in soaking temperatures caused varying degrees of protein expansion or denaturation,which interacted with polysaccharides and lipids to form substances with different particle sizes.The larger particles tended to roll on the friction pair,while the smaller particles tended to slide on the friction pair or form a droplet film,resulting in a smaller coefficient of friction.This study contributes to the understanding of the tribological behavior of particles and provided basic data for the correlation of friction coefficient and sensory.
基金the National Natural Science Foundation of China(Nos.50971137 and 50934011)
文摘The influence of soaking temperature on microstructure of high temperature multi-pass compression deformation for two low carbon steels(steel A:wC=0.032%and wMn=0.25%;steel B:wC=0.165%and wMn=0.38%)is studied on the thermal-mechanical simulator in order to rationalize the hot-rolling schedule of low-carbon steel and to promote the low-temperature heating technology.The results show that the microstructures of steel A are almost not affected by reducing soaking temperature,but the acicular ferrite forms in steel B when the soaking temperature is reduced from 1 200 to 1170℃,due to its smaller initial austenite grain size according to recrystallization kinetics theory.
基金Item Sponsored by National Key Technology Research and Development Program of China (2006BAE03A15)Natural Science Foundation of Yunnan Province of China (2006E0017Q)
文摘在Through changing soaking temperature and soaking time, austenite grain growth behavior of X80 pipeline steel under different heating conditions was studied. Relationships of average grain size to soaking temperature and time were obtained respectively. The results show that the prior austenite grains grow with the increase of soaking temperature and time. When soaking temperature is lower than 1 180 ℃, austenite grain size and growth rate are small; when it higher than 1 200 ℃, austenite grains grow rapidly and abnormal grain growth appears. For soaking at 1 180 ℃, austenite grain growth rate is initially high and then decreases when soaking time exceeds 1 h.
