铸

Foundry in 2004, our factory passed the ISO9001-2000 international quality system certification, and to ensure that enterprises in the die casting industry's leading position.

在2004年我厂通过了ISO9001-2000国际质量体系认证，并确保企业在压铸界的领先地位。

In developed countries such as America and japan magnesium die casting is used largely in automobile and communication industry.

我国是镁的产量大国，但是镁合金压铸件的产量很少，至今还没有生产镁合金压铸机的能力。

Experimental data is provided. Thus a numerical analysis is made of the ideal straightening differential

针对目前材料蟠变参数缺乏高温数据的情况，本文根据已有的实脸数据对峪变参数进行了外推从而对铸坯的理

By using optical metallography;TEM and x-ray diffractometer, microstructure and texture of 3004 aluminium alloy sheet from cast rolling plate are studied.

通过光学金相、透射电镜和x射线衍射技术等分析方法，研究了3004铝合金铸轧板的组织和织构特征。

This makes the study of the area more difficulty.The sand reservoir clastic fragment, the characteristics of infillings, digenesis and the structure and evolution of pores have been studied by means of many techniques including of microscope, EMS, high pressure mercury intrusion and thin section.

应用显微镜下观察、电镜扫描、高压压汞及铸体等分析技术，对砂岩储层的碎屑组分、填隙物特征、成岩作用以及孔隙结构与孔隙演化进行了研究，尝试运用数理统计方法研究了储层非均质性，分析评价了储层物性特别是渗透率的非均质性。

A kind of new harrow disk made up of as -cast bainitic steel is studied and produced to replace the 65Mn steel and the traditional manufacturing craftwork.

研制了一种新型铸态贝氏体钢农机耙片，以代替原65Mn钢及传统生产工艺。

The technique of preparation of special Nafion solution by using high boiling-point dissolvent is reported.

采用特种高沸点溶剂，获得了溶铸性能优良Nafion的溶液。

In chapter 6, we apply distributed parameter system theory to the process of continuous casting of steel.

应用分布参数辨识和控制理论，对钢铁工业连铸过程的几个理论问题进行了讨论。

Time world green is turned over outside hang an area double the number upper limit of every groups of servers will be before, the player that lets all participation hand in hand in all casting more all corners of the country of surging forward with great momentum.

功夫世界》绿色反外挂区每组服务器的人数上限将是原来的两倍，让所有参与的玩家携手共铸一个更加波澜壮阔的江湖。

Analyzing and simulating of the deformation law of the ceramic downspout product after overcoming the shortage of powder material models in the software of MSC. MARC. It shows out the important effects of various factors and the shape of mandril during the process. And it is obvious that the shape of the top mandril has more effects on the process than the bottom.(3) Showing out the important effects of model figure on the flowing of powder and the forming of low-density fields from the analysis. After changing the top of the mandril into spherical shape, an improving model is putting out so that the distribution of stress and strain turns to be even and proper and that the flow rule of powder grains is better.(4) Calculating of the dimensional precision and the cutting ratio of the product and analyzing of the effects of such factors as rubber aging, loading process, mandril, friction etc. on the cutting ratio.

MARC存在的粉末材料模型方面的设计缺陷后，对连铸水口粉末成形件的变形规律及影响因素作用进行了模拟分析，指出芯棒形状对成形件的变形有较大影响，并且芯棒顶部形状与芯棒底部形状相比，对粉末变形有更大影响；(3)分析了成形件出现低密度区域的原因，指出模具形状对粉末流动以及粉末成形件低密度区域的形成有重要作用，提出了密度分布优化改进模型：改进模具顶部形状，并将芯棒顶部设计成球面后，粉末成形件顶部区域的应力、应变分布更加均匀、合理，粉体颗粒流动情况明显改善，低密度区域明显缩小；(4)计算了成形件的尺寸精度及切削率，并指出除模具形状的影响外，充填密度、橡胶模具老化、加载工艺等其他因素对总体切削率也有相当的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。