The curing of the magnets always in the vacuum circumstance . as far as the mixture cohesion is concerned , the optimized curing temperature and time are 120 and 120min 所用粘结剂合适的固化温度是120 ,合适的固化时间是120min ,固化后磁体应该随炉冷却。
Both initial curing temperature and final temperature of two systems moved to the peak temperature of the systems with addition of org - mmt , and the peak temperatures were kept constant 加入有机蒙脱土后,两个固化体系的起始固化温度和终止固化温度均明显向中间靠拢,而峰顶固化温度基本维持不变。
2 . the die cracking with no - flow underfill was analyzed during cooling process from the curing temperature of underfill to the room temperature or to the lowest temperature ( - 55 ) in thermal cycle test 近年来,不流动胶倒装焊工艺己开始得到应用,但由于不流动胶的固化温度比常规底充胶高,芯片在冷却过程中将承受更大的热应力。
The results show that : ( 1 ) the cure is accelerated by increasing the usage of cure catalyst and cure temperature , but cure effect is bad with too fast speed , so 3 . 5 % cure catalyst and 80 cure temperature were cheese 研究结果表明: ( 1 )增加促进剂用量,提高固化温度对共混物的凝胶速度有明显的促进作用,但凝胶速度过快会导致低分子物挥发不完全,影响固化效果,通过对比我们选择的固化条件为:促进剂用量3 . 5 % ,固化温度为80 。
The main results are summarized as follows : first , formulation tailoring and curing process of epoxy resin adhesive have been studied , and the peel strengths were tested . the curing temperatures are obtained following the result of curing reaction heat flow tested by dsc 主要研究内容和结果如下:首先,研究了作为基底材料基体的环氧树脂胶粘剂的配方,利用差示扫描量热仪( dsc )确定了胶粘剂的固化温度,并对胶粘剂进行了性能测试。
By use of differential scanning calorimetry ( dsc ) for analysis of the glass transition temperature , the influence of latex particle size , curing temperature and reactivity of curing agents on the curing extent of the waterborne epoxy / amine system have keen studied 摘要以差示扫描量热( dsc )为主要研究手段,通过对涂膜的玻璃化转变温度的分析,研究了乳胶粒粒径、固化温度和固化剂的活性对塑胺水性环氧双组分体系固化程度的影响。
The curing conditions were studied and the result indicated that the product showed a good storage , decreased the curing temperature , improved adhesion and brittleness , with an excellent film performance . expecially the adadhesion , flexibility and chemicol resistance 结果表明,合成的交联剂贮存性能良好,醚化三聚氰胺树酯作为交联利加入到丙烯酸环氧树酯中,可以明显降低固化温度且改善原有涂膜的脆性,成膜性能好,尤其是具有优良的附着力、柔韧性和耐化学品性。
4 . the optimistic resin system and the effect of resin content on the targets performance are discussed by orthogonal experiments , based on which , the moulding process parameters such as temperature , pressure , cycle and post - cure temperature are designed optimistically 4 、通过正交试验确定了最佳树脂体系,确定了含胶量对靶板性能的影响,在选定基体材料基础上,通过正交试验分析,对复合材料成型工艺参数如:成型温度、成型压力、成型时间、后处理温度进行了优化设计,确定了体系的最佳成型工艺参数。
It is found that the smaller site of latex particle results in higher curing extent of waterborne epoxy / amine system , and the system has a optimized curing temperature , at which it shows the best comprehensive properties of the film and highest curing extent , and the curing extent with second amine higher than that with primary amine 研究发现,水性环城树脂乳胶粒粒径越小,水性环氧体系的固化程度越高;型水性环氧体系的固化存在最佳的固化温度,在此温度下,体系的固化反应程度最高,涂膜的综合性能最佳;仲胺类固化剂与环氧树脂乳胶粒的固化程度比伯胺类固化剂的高。
By means of comparative experiments , this paper illustrates the influences of different cements , admixtures of flash - setting agents , water cement ratios , curing temperatures and raw materials on the performances of sprayed concrete , such as the setting time , strength and shrinkage ratio , on different conditions of efflorescence and hydration , so as to present references with regularity for the practical application of sprayed concrete 摘要通过对比试验,阐明了不同水泥、不同速凝剂掺量、水灰比、养护温度以及原材料在不同风化和水化程度条件下,对喷射混凝土凝结时间、强度、收缩率等性能的影响,以期为喷射混凝土的实际应用提供规律性的参考资料。