查询词典 high-melting metal

Using high frequency induction brazing and TiZrNiCu filler metal, the shear strengths of the joints were low. The maximum shear strengh was only 102.1MPa, which was lower than the maximum strength of vacuum brazing. The reasons may be that excessive intermetallics, holes and oxidation existed in the joint. So TiZrNiCu filler metal isn't fit for non-vacuum brazing.The stress variation, stress distribution and crack-sensitive regions during the cooling process of brazing have been studied by Marc non-linear software.

采用气体保护高频感应加热、TiZrNiCu钎料钎焊时，接头的强度普遍偏低，最高的剪切强度只有102.1MPa，远远低于辐射加热真空钎焊的强度，其原因是接头中局部生成了过量的金属间化合物，且产生氧化，接头中含有较多的气孔等影响了接头强度，因此可以认为TiZrNiCu钎料不适合在非真空条件下的钎焊。

Kempers' study , the more layers the mesh screen type had, its resistance against gravity was higher, but its heat resistance and flow resistance were comparatively augmented. As mentioned in the preceding paragraph, it is extremely difficult for a single micro structure based on any of the three types to possess both low flow resistance and strong capillary force. Faced with this fact, the researchers have tried to mix the three micro structures in Table 2 into as many combinations as possible so that a composite micro structure with low flow resistance and great capillary force may be fabricated. After a thorough analysis, the groove combined with sintered metal or mesh screen has been found to be a better alternative. However, the groove combined with sintered metal will raise the flow resistance of the channel, and the aluminum substrate employed in this research cannot be sintered into a micro structure. As a result, the groove combined with mesh screen is finally chosen as the composite structure to enhance its capillary force and at the same time maintain its high permeability. In this way, the heat pipe will not fail due to the working angles.

Kempers 的研究当中提到，当网格结构越多层时，其对抗重力的能力也越强，但相对的其热阻以及流阻也越高，就如同前段所述，我们很难在单一结构当中找出一流阻低且毛细力之微结构；因此本研究便以表2中之三种微结构进行组合，找出一低流阻且毛细力强之复合式结构，经分析发现，沟槽搭配烧结以及沟槽搭配网格为较佳之组合方式，但由于烧结搭沟槽构造将会提高流道之流阻，且本研究使用铝做为基材，并无法使用烧结最为其微结构，故将采用网格搭配沟槽之复合式结构提高结构的毛细力，并维持沟槽结构的高渗透性，解决因角度造成热管失效的问题。

Modern materials have high hardness, good toughness, strong adhesion, such as easy processing difficulties, particularly in the mold, knife tools, the key components, etc., metal processing companies are facing great challenges. 10 at home and abroad over the years we have provided thousands of customers Materials protection solutions, which in this deeply to realize that advanced nanotechnology can save a lot of metal processing costs and shorten the processing time, increase production efficiency.

现代材料有硬度高、韧性好、粘黏性强等不易加工的困难，尤其在成型模具、刀工具、关键零元件等方面，金属加工厂商们面对著极大的挑战。10多年来我们为海内外数千家的客户提供过材料保护的解决方案，在这当中深切地体认到先进的纳米技术可以为金属加工厂节省大量的成本、缩短加工工时、增加生产效率。

The characteristics and trends in material research／development at present are discussed,focusing on the new progress in material research done by the Institute of Metal Research CAS.What were studied include ultra-high strength maraging steel,nickel-free austenite stainless steel for medical applications.coronary artery bracket for drug's slow release,antibiotic stainless steel and metal hydride for the use of air conditioner.

摘 要：首先分析了材料研究与发展中呈现出的新特点和新趋势，着重介绍了中国科学院金属研究所相关课题组近年来在超高强度马氏体时效钢、新型医用无镍奥氏体不锈钢、缓释药物冠动脉支架、抗菌不锈钢、金属氢化物空调等新材料及新材料技术方面的研究新进展。

On-line real-time monitoring for temperature overcome the difficulties of high temperature, high voltage and high magnetic field, to be a new method of checking up the Metal-clad switchgear. It can show the temperature of the spot of being monitored, judge the temperature and give an alarm. The system saves lots of resource and improves the veracity.

开关柜过热故障在线监测系统不仅克服了开关柜内高温、高压、强磁场环境下温度不易监测的难题，而且通过监控软件实时显示开关柜内测点的当前温度值，并做出报警处理，节省了大量人力、物力，提高了事故预判的准确性、实时性。

The high solubility of CdS is ascribed to the dissociation of metal-metal bonds and edge-shared tetrahedra in these Ga-containing glasses.

CdS高的含量可归因于含Ga硫系玻璃中金属-金属键和共边连接四面体的分离。

Examples of open-shop problem include health examination and the operation of car maintenance. Scheduling problem with no-wait constraints occur in many industries. For instance, in hot metal rolling industries, where the heated metal has to undergo a series of operations at continuously high temperatures before it is cooled in order to prevent defects.

生产过程中的排序往往受到产品生产的特性或者生产技术的限制，所以会产生不同的约束情况，例如：无等待时间是化学、石油工业和冶金工业的特色；阻塞指的是缓存能力受到限制或者没有缓存的情况，最常见的是利用机器人进行夹取工件的作业。

In this paper, shearing machine and hammer grinder were combined to pulverize the waste boards, the metal and nonmetal on the PCBs and PWBs can be liberated availably, Then a roll-type corona-electrostatic high-voltage separator are applied to separate the metal and nonmetal, at the same time, A electrostatic separators/sizers is used to separate the mixed metals.

因此，本文采用剪切式旋转破碎机和冲击式旋转磨碎机进行两级破碎，达到金属-非金属充分解离的程度，然后应用辊式电晕-静电复合电场高压电选机，对已破碎的废弃电路板进行金属颗粒与非金属颗粒分选，同时对金属之间的分选进行理论分析和实验研究。

Is located in the town of North used to Ki Lun Shan industrial zone, is a manufacturing and trading enterprise, the factory area of nearly square meters, employs more than 200 people, has the right to operate independent of imports, products to metal, plastic-based , professional production of various kinds of nylon wheels, industrial casters, sharpener, knife sharpeners and other metal products, and developed a series of high-quality plastic toothpicks nylon, plastic products.

阳江市建荣工贸有限公司位于北惯镇麒麟山工业区，是一家生产贸易型企业，厂区面积近万平方米，员工超过200人，拥有独立进口经营权，产品以五金、塑料类为主，专业生产各类尼龙轮、工业脚轮、磨刀棒、磨刀器等五金产品，并开发出了塑料牙签等系列优质尼龙、塑料制品。

By comparing properties with graphite-anode,high silicon cast iron anode,lead-silver anode,platinized anode and mixed metal oxide anode,we considered that the mixed metal oxide anode is the most ideal and advanced auxiliary anode material.

目前，外加电流阴极保护技术已广泛应用于地下储罐、钢筋混凝土、船舶、桥梁、化工设备等许多结构的防腐。2阴极保护用阳极的比较和分析2.1牺牲阳极牺牲阳极保护法是指在腐蚀

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。