MetallurgicalImport and Export Corporation是什么意思

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Application of Active lime in Metallurgy;

活性石灰在冶金生产中的应用

The technology and application of microorganisms metallurgy;

微生物冶金技术及其应用

Present situation of study on microwave heating application in metallurgy;

微波加热在冶金领域中应用研究现状

Through analyzing and inspecting each metallurgical property of natural lump ores from main habitats in the world by experiment, the article indicates that the lump ores' metallurgical properties can meet a modern blast-furnace except the softening and melting properties.

由于对天然块矿的冶金性能认识不够全面和深入,影响了现代高炉使用块矿技术的发展。

The experimental study of adding MgO-bearing additives in acid pelletizing process, including balling,firing and product pellets metallurgical property, in ANSTEEL shows that :under the usual fired temperature of the traveling-grate, the cold compression strength of product pellet is more than 2 500 N/P when the pellets contain the mass percent of MgO/SiO2 in the range of 0.

对带式机酸性球团矿添加含MgO添加剂的造球、焙烧和冶金性能研究表明,在带式机目前焙烧工艺制度条件下,MgO/SiO2比值在0。

In order to raise the metallurgical property of pellets and the stabilize of the ironmaking furnace,the ability of linking crystal and the microscopic characteristics of balling iron concentrtes are studied through the characteristics of production technology and the raw materials condition at Nansteel.

为进一步提高南(昌)钢公司球团矿的冶金性能,稳定炼铁高炉炉况,根据南钢的原料条件和生产工艺特点,对常用造球铁精矿粉的微观特性、连晶能力进行了研究,并进行了配矿结构的优化焙烧实验,及球团矿的冶金性能的实验研究。

on electrical properties of multicrystalline silicon prepared by metallurgic method was investigated.

利用四探针电阻测试仪、光学显微镜、扫描电镜、电感耦合等离子发射光谱仪、能谱分析等设备,从晶粒尺寸、组织形态以及晶界析出物等对冶金法制备的多晶硅电阻率的影响。

High-temperature sensor for vacuum metallurgy and calibration of temperature measuring system;

真空冶金用新型温度传感器及测温系统的校准

Advances in vacuum metallurgy process automatic control;

真空冶金过程自动控制技术的进展

Micro-volumes of electrode materials are deposit in the arc plasma of a pulsed current and fused into the substrate surface and solidified rapidly forming a metallurgical bond.

电火花沉积工艺(ESD)是一种脉冲微弧焊工艺,用高电流的短脉冲把电极材料沉积到基体金属表面,微量的电极材料在脉冲等离子弧的作用下熔化并在基体表面快速固化形成涂层,涂层与基体表面材料呈冶金结合。

The metallurgical bond between the Nb and the stainless steel was obtained under the appropriate dynamic conditions, and the predestinated technical requirements can be reached.

8mm的不锈钢管与铌棒在固态下产生高强度的冶金结合,其性能超过了预定的技术指标。

It states that interfacial diffusion which causes metallurgical bond happened between the Ni based alloy chromium carbide composite coating and the steel substrate.

证实真空熔烧所得镍基合金 碳化铬复合涂层与钢基体之间发生界面扩散 ,形成牢固的冶金结

The results show that residual stress and serious metallurgical defects near the fracture initiation site are the failure cause of the gearbox output shaft.

利用金相检查、SEM分析和X射线衍射物相分析等方法,对材料为42CrMo钢的开裂大型齿轮箱输出轴进行失效分析,结果表明,残余拉应力和位于中心的严重的冶金缺陷是输出轴失效的原因。

The result indicates that the metallurgical defects in the casting is the reason that cause the brittle fracture of the reinforced bars, and the change of the environmental temperature only has the function of catalysis.

对使用过程脆断的30MnSi高强钢筋的断口、金相组织和轧制状态下的母材以及连铸坯低倍组织进行了全面的检验和分析,检验结果表明,连铸过程中的冶金缺陷是诱发钢筋脆断的因素,而环境温度的变化只是起到催化的作用。

Aiming at the current existing problems of study and fabrication of national aluminum sheet used for easy-open can without being pay more attention to the effects of intrinsic metallurgical defects, a new idea to link organically with hot deformation process in the study of the aluminum sheet used for easy-open can has been put forward by author.

针对目前我国铝材生产与研究中对内在冶金缺陷的影响作用重视不足、液态(熔体)处理与各种固态处理均是按各自系统独立进行研究的现状,作者结合本课题组的前期研究基础,以具有实用价值且量大面广的易拉罐用铝材(Al-Mn-Mg合金)作为研究对象,提出从改善铝材冶金质量这一关键技术入手,将铝材的处理状态(熔体处理和均匀化)与热变形加工有机地结合起来进行研究的新思路。

The high-temperature liquid matrix materials will melt the surface zone of another solid block of metal alloy,so that the metallurgical bonding occurs between the two materials.

镶铸复合金属材料是将不同的金属材料采用镶铸工艺使它们连在一起,利用基体材料的高温液体将另一种金属合金表面熔化,使它们产生冶金结合或部分冶金结合。

The results show that the adherent between Ni-based spray welding coating and titanium alloy substrate is a metallurgical bonding based on the composition diffusion.

结果表明:镍基喷焊涂层与基体钛合金的结合是基于合金元素扩散的冶金结合,合金元素的扩散对涂层与基体能否形成冶金结合具有决定性的影响,钛合金表面的活化处理、涂层合金重熔时液态停留时间以及喷焊后进行时效处理是影响合金元素扩散的主要因素。

The cladding layers and basal bodies generate metallurgical bonding.

试验结果表明,获得了激光熔覆的最佳工艺参数,激光熔覆层均匀连续,无宏观气孔和裂纹,激光熔覆层与基体发生了冶金结合。