melt-down time

At the time of folding, the knife will push the thread into the fold. After gathering, heat is applied to melt the trimming and forwarding.

折页时，折刀把线推入折口。集帖后，加热把线融化，粘牢各书帖，然后裁边及作进一步加工。

A polystyrene ( PS)/ EPDM blend formed in situ by Friedel-Crafts alkylation in melt state was developed. The effects of the type and addition level of Lewis acid and the temperature and time of mixing on the properties of blend were investigated.

在熔融状态下，利用Friedel-Crafts烷基化反应原位生成聚苯乙烯（PS）/EPDM共混物，考察路易斯酸品种、用量、混炼温度和混炼时间等对共混物性能的影响。

The results showed that: wax melting rate decreased and complete melt-down time grew with the increasing in well depth at each method of displacement;

结果发现，三种驱替方式下，随着油井深度的增加，蜡样的熔解速度减缓，蜡样完全熔解时间延长；

Then, a Box-Behnken design by using Design-expert software was conducted, we selected mold temperature, melt temperature, holding pressure and dwell time as experimental factors, selected warpage and shrinkage as target variable.

其次，运用Design-expert软件设计了Box-behnken试验，选取模具温度、熔体温度、保压压力、保压时间作为实验因素，以翘曲变形和体积收缩率作为目标变量。

According to these equations, the relationship between decomposition quantity and time for titanium hydride at the temperature of 940K is obtained, which well coincides with the Al alloy melt foaming process.

据此方程组，计算得到了在940K时，氢化钛的热分解量对时间的关系线，它与铝合金熔体泡沫化过程相吻合。

The influences of melt injection temperature, injection time, gate location and materials property on the filling process were studied and the reasonable results were attained.

考察熔体注射温度、注射时间、入口位置、材料性质对充模过程的影响，得到优化充模结果；