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1)  high temperature pre-precipitation treatment
高温预析出处理
1.
The properties,such as tensile property at room temperature,hardness,electrical resistivity and SCC of 7A52 alloy by high temperature pre-precipitation treatment were tested.
通过对高温预析出处理的7A52合金在T61和自然时效状态的强度、硬度、电阻率和应力腐蚀开裂(SCC)的测试,对比分析了高温预析出对7A52合金自然时效和T61时效状态下应力腐蚀性能的影响。
2)  high-temperature pre-precipitation
高温预析出
1.
The influence of high-temperature pre-precipitation on stress corrosion cracking, intergranular corrosion, exfoliation corrosion behaviors and age hardening of 7055 Al-Zn-Mg-Cu aluminum alloy has been investigated in this paper.
研究了高温预析出对Al-Zn-Mg-Cu系7055合金的应力腐蚀、晶间腐蚀和剥蚀行为以及时效硬化的影响,并通过对预析出/时效组织的透射电镜观察,阐述了预析出对7055合金各种腐蚀行为和时效硬化的影响。
2.
The effect of high-temperature pre-precipitation on the microstructure,age hardening and stress corrosion cracking of 7A52 alloy has been investigated.
研究了高温预析出对7A52合金组织、时效硬化和应力腐蚀断裂的影响。
3)  pretreatment in high temperature
高温预处理
1.
Studies on effect of pretreatment in high temperature on anaerobic digestion of sludge;
高温预处理对污泥厌氧消化影响的研究
4)  HTPP
高温预析出(HTPP)
1.
The influence of T6, RRA, second aging(T6I6) and high-temperature pre-precipitation(HTPP)aging on the mechanical properties and corrosion behavior of 7075 aluminum alloy and its mechanism were investigated by tensile test, intergranular corrosion test and TEM observation.
采用室温拉伸和剥落腐蚀、晶间腐蚀方法,结合金相观察和透射电子显微镜(TEM)观察,研究了T6、RRA、二次时效(T6I6)、双极过时效(T73)及高温预析出(HTPP)对7075铝合金力学性能及腐蚀性能的影响及其影响机制。
5)  aerobic thermophilic pretreatment
高温好氧预处理
1.
Laboratory-scale experiments are conducted to determine optimum temperature and solid residence time (SRT) of aerobic thermophilic pretreatment of waste activated sludge to achieve maximum pathogen reduction and stable process performance.
为使高温好氧预处理反应器达到杀灭病原菌和稳定运行的效果,以剩余污泥为研究对象,通过试验确定其最佳运行温度和固体停留时间SRT。
6)  pretreatment with high temperature and hot water
高温热水预处理
1.
The pretreatment with high temperature and hot water is found as an inappropriate method comparing with other methods because mannose is produced as the main monosaccharide in the forages except rice straw.
选用白茅、稻草、大米草、黑麦草、高羊茅5种牧草为试验材料,在预处理阶段采用稀酸预处理、稀碱预处理、高温热水预处理、酸催化高温热水预处理,然后又进行纤维素酶的水解试验。
补充资料:表面预处理
分子式:
CAS号:

性质:电镀前镀件表面的加工、处理过程,主要包括磨光、抛光、脱脂、浸蚀等工序。电镀零件表面除了存在自然氧化膜和一般接触的油污之外,有的零件还会带有热处理的氧化皮、淬火油、防锈油、润滑油等污垢。表面预处理的目的是为电镀过程提供一种平滑、有附着力的基体表面。不同的镀件应根据其表面状态、电镀层的要求和材质选择表面预处理的工序。

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