查询词典 specular cast-iron

The effects of RE-Nb on microstructure and mechanical properties of cast 3Cr2MoNiWV hot-work die steel were investigated by SEM, TEM and AJ-1 electronic tensile test equipment.

用扫描电镜、透射电镜和万能电子材料拉伸试验机研究了RE—Nb对铸造3Cr2MoNiWV热锻模具钢组织和力学性能的影响。

cast hot-work die steel ; heat treatment process ; impact toughness and hardness

本文中采用 RE- Nb作为变质剂，对该钢种进行处理，并采用不同的高

Thermal fatigue property of the cast hot-work die steels with different V/C was investigated with the self-restricting test method.

采用自约束热疲劳试验方法，研究了不同V/C对铸造热作模具钢热疲劳性能的影响，并对比研究了铸造热作模具钢和H13钢的热疲劳性能。

The effects of heat treatment process on impat toughness and hardness of the cast 3Cr2MoWVNi hot-work die steel was studied.

众所周知，铸造模具因存在成分偏析和铸造缺陷使其力学性能远低于锻造模具。

The result shows that the impact toughness and hardness of the cast hot-work die steel reaches the best value (72.3 J/cm 2;34.5 HRC) when the steel is quenched at 1050℃ and tempered at 650℃.

因此 ，如何提高铸造热锻模具的力学性能，使其满足服役条件的要求，就成为关键。

Compared with original cast 3Cr2MoNiWV hot-work die steel, the impact toughness and UTS at both room and high temperature of modified one can be increased by 1.9 times, 234 MPa and 179 MPa respectively, with same hardness.

与常规的铸造3Cr2MoNiWV热锻模具钢相比，冲击韧性提高1.9倍，达到了72.3J／cm^2，常温抗拉强度和高温抗拉强度（600℃）分别提高了212MPa和206MPa，达到1446MPa和104

The results indicate that the thermal fatigue of the cast hot-work die steel is high-cycle thermal fatigue, therefore the main factor affecting thermal fatigue resistance is thermal strength and thermal stability.

随着V/C增加，热疲劳抗力先增后减，当V/C比为3.0时，组织中析出了细小弥散的VC，改善了钢的热强性和热稳定性，热疲劳抗力最高。

Key words: cast measurement; Howes'ratio

模型测量；Howes比值

And the songs of the temple shall be howlings in that day, saith the Lord God: there shall be many dead bodies in every place; they shall cast them forth with silence.

摩8：3 主耶和华说、那日殿中的诗歌变为哀号。必有许多尸首在各处抛弃、无人作声。

And the songs of the temple shall be howlings in that day, saith the Lord GOD: there shall be many dead bodies in every place; they shall cast them forth with silence.

8：3 主***说，那日，殿中的诗歌变为哀号。必有许多尸首在各处抛弃，无人作声。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。