氩

Based on the coupling numerical solving method, the velocity distribution and flow behavior of Ar in a ladle furnace lid was calculated and analyzed by numerical simulation.

采用耦合数值求解的方法，计算并分析了LF精炼炉盖内气体流动的速度分布状态以及液面附近惰性气体氩的流动行为和分布。

Hot tests of the stratification in the ladle during the cyclic operation are designed and carried out with continuous temperature measurement.

针对国内多数钢厂的现行工艺流程，详细分析了吹氩精炼和予热烘烤阶段的传热现象以及由渣层和炭化稻壳组成的钢水表面复合保温层的传热，提出了计算方法。

The principle and method to measure directly the main flow velocity of liquid steel ina 60 tons argon-stirred ladle by a probewere introduced in the paper.

本文介绍利用紊流下形阻系数近于常数的条件，对60t吹氩钢包内的主流股流速进行实际测量的原理、方法和结果。

This paper presents the diagnosed results for argon nitronitrogen mixture jet as the second part for spectroscopic diagnosis method on non equilibrium arc boated jet .

本文是非平衡电弧加热射流光谱学诊断方法实验研究工作的第二部分，给出了氩，氮混合射流的结果，证明亚声速射流中确有非平衡囊兜现象存在

Its subject coverage includes: ladle and tundish technologies to remove inclusions and prevent oxidation; and argon oxygen decarburizing, ladle degassing, filtering, secondary refining, and chemical analysis of slags.

它的主题涉及的范围包括：包和漏斗技术去除夹杂物和防止氧化作用；氩氧气钢的脱碳，包内去氧，过滤，二次精炼法，炉渣的化学分析。

Through degassing by argon injection into ladle,however,We have improved the quality of steel and satisfied the performance needs of steel products.

通过冶炼工艺，采用钢包吹氩等措施，改善了钢的质量，满足了钢材的性能要求。

The literature of Nanyang Basin is always enshrouded in tragic atmosphere .

南阳盆地的文学世界里始终氤氩着一股挥之不去的悲剧气氛。

The results show that photocatalyst TiO2 improves the removal rate of toluene in not only the nitrogen plasma field (NTP-P-O2/N2) eradiating ultraviolet light but also the argon plasma field eradiating visible light. This supports the idea that both the UV light and the high-energy electron in the plasma field can activate TiO2. Furthermore, the toluene removal rate in NTP-P-Ar system is 5% higher than that in NTP-P-O2/N2 system, confirming that high-energy electron has greater effect on the degradation performance of toluene, as compared with UV light.

结果表明：在发射紫外光的氮等离子体场(NTP-P-O2/N2)中和发射可见光的氩等离子体场中，TiO2：均能提高体系的甲苯去除率，说明等离子体场中产生的紫外光和高能电子均能激活光催化剂TiO2；NTP-P-Ar体系中的甲苯去除率较NTP-P-O2/N2：体系中的约提高5%，说明等离子体场中高能粒子对甲苯降解性能的影响要强于紫外光的影响。

Fluid Flow and Mixing in the Ladles Stirred by Argon Through Multi-tuyere.

吹氩精炼钢包内三维流动和混合现象的研究。

After being passivated in 0.02MPa argon for 72 hours, large-area black macro-aggregates were collected on the copper crucible in front of the target.

后钝化在0.02mpa氩为72小时，大面积黑色的宏观总量分别为搜集有关对铜坩埚在前面的目标。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐