查询词典 ductile

The characteristics and influencing factors of various ductile fracture criteria were compressively analyzed. Ductile fracture criteria built on the theoretical basis of Lemaitres continuous medium damage-mechanics was chosen, and materials constants used in the ductile fracture criteria were calculated through the Role of Mixture.

综合分析了各种韧性断裂准则的特点及其影响因素，选择了在连续介质损伤力学Lemaitre的理论基础上建立的韧性断裂准则，应用混合法计算出了韧性断裂准则中的材料常数。

In this thesis we used two types of low-carbon ductile as the basal of low-carbon ductile cast—infiltration, one is as-cast high-toughness pearlitic low-carbon ductile, the other is as-...

用我们自己配制的合金粉末进行低碳球铁表面铸渗合金化后，得到的表面渗层的硬度最高可以达到HRC58，远远高于母体的硬度。

The ductile shear zone played an important role in localization of gold ore deposits:(1) The ductile shear zone confines the source, migration and evolution of ore-formingfluid;(2) Shear stress and deformation accelerate the remobilization of mineralized elements;(3) The ductile shear zone supplies space for ore-forming fluid deposition.

田湾矿田剪切带制约着成矿流体的来源、运移和演化，剪切应力、应变作用对成矿元素的活化迁移具有重要的影响，为金的成矿提供了物质基础和创造了条件。

The ductile shear zone played an important role in localization of gold ore deposits:(1) The ductile shear zone confines the source, migration and evolution of ore-forming fluid;(2) Shear stress and deformation accelerate the remobilization of mineralized elements;(3) The ductile shear zone supplies space for ore-forming fluid deposition.

田湾矿田剪切带制约着成矿流体的来源、运移和演化，剪切应力、应变作用对成矿元素的活化迁移具有重要的影响，为金的成矿提供了物质基础和创造了条件。

Is a research, development, production and sales of integrated enterprise, mainly produces high-speed road crash barrier, the ball ink on water pipes, ductile iron pipe, centrifugal ductile iron pipe, ductile iron manhole covers, cast iron spilled water pipes, cast iron pipes, cast iron-cast copper-wing-style cast aluminum alloy radiator, cast iron railings fence, green railing, artistic doors, anti-theft, sewage wells, hoods,箅子, flexible pipe fittings and other products, can also be synchronized in accordance with the requirements of the customers design, drawings and samples custom processing.

连云港光明铸业有限公司，是集研制、开发、生产、销售于一体的综合性企业，主要生产高速路防撞护栏、球墨上水管、球墨铸铁管、离心球墨铸铁管、球墨铸铁井盖、铸铁泻水管、铸铁排水管、灰铸铁铸式铸翼式铜铝合金散热器、铸铁围墙栏杆、绿化栏杆、艺术大门、防盗、污水井、盖、箅子、柔性管件等系列产品，还可根据用户需要进行花样设计、来图来样加工定做。

And with advanced physical and chemical testing equipment, so that production of ordinary carbon steel materials castings, iron castings; alloy steel castings; non-ferrous metal castings; ordinary ductile cast iron parts, wear-resistant, high temperature for Ductile Iron Castings; various centrifugal unlimited cold Hard Cast Iron Roll, Chilled Ductile Iron unlimited roller; all kinds of wire rod, rebar, steel roller with groove, such as product quality is fully guaranteed.

并具有先进的理化检验设备，使生产的各种材质的普通碳钢铸件、铁铸件；合金钢铸件；有色金属铸件；普通球墨铸铁件，耐磨、耐高温球墨铸铁件；各种离心无限冷硬铸铁轧辊、无限冷硬球墨铸铁轧辊；各种线材、螺纹钢、型钢用孔型轧辊等产品质量得到充分保证。

This paper deals with and summarizes the research and importance of ductile shear zones and presents the future direction and aim for the research of the ductile shear zones around the world. Four aspects of studies of the ductile shear zones have been proposed in this paper as follows:(1) The stress environment including the mineral assemblages, deformation, stress-shearing parameters;(2) The major element sequence and activation under condition of stress;(3) The variations of trace elements and REE, their transportation distributions under strong natural deformation as well as variations of mineral crystal parameters, which can also control the element changes during the ductile deformation;(4) The relationship between element migrations, activation and stress, which will present the new evidences for the studies of dynamic diagenesis and mineralization as well as the studies of evolution of ductile shear zones developed in middle and low levels.(5) The analysis of elements and isotopes in mylonites on the micro-scale are crucial for the understanding of component migrations during the mylonization.

对韧性剪切带及其变形岩石的研究现状和研究意义进行系统的综述，提出了未来韧性剪切带及其糜棱岩的研究方向和目标：①系统研究糜棱岩中主要造岩矿物组合及其变形特征，计算剪切变形岩石的应力－应变参数，搞清韧性剪切带所处的应力应变环境；②系统研究韧性剪切带岩石在天然分强剪切应力作用条件下常量元素迁移机制及活化转移的应力排序问题；③系统研究剪切变形作用过程中岩石化学组成的微量和稀土元素变化，讨论强变形条件下岩石中微量元素活化和迁移规律，深入探讨微量元素迁移的动力控制，包括稀土元素配分变化的应力制约以及应变矿物晶格化学变化行为及其对其寄主的变形岩石元素在应变过程中迁移变化的制约和影响；④从理论上探讨天然强剪切应变条件下岩石中组分活化、转移与应力的因果联系，为深入探讨韧性剪切带动力成岩作用提供理论的科学依据，为探讨中、下地壳中韧性剪切带的形成和演化提供科学依据，同时为韧性剪切变形作用条件下成岩、成矿地球化学作用提供理论和实验依据；⑤现代分析技术如激光同位素原位分析以及激光ICP-MASS分析技术对研究变形域内的岩石的元素和同位素的活化迁移规律，对深刻揭示糜棱岩化过程中的元素活化迁移机制提供更高质量的地球化学证据具有重要的作用。

This application focuses on the aspects of chemical variation rule of rocks and mineral composition changes of mylonites corresponding to the ductile shearing by the case study in the ductile shear zones in south Tan-Lu fault belt. The results show that there exists evendent variation between deformed and undeformed rocks in ductile shear zones, i.e., the decreasing of SiO2 and alkali elements as well as the large ionic lithophile elements, such as Rb,Sr,Ba. The total REE has the behavoir of increasing during the deformation.

本研究着重选择郯庐断裂带南段广泛出露的中深层次韧性剪切带作为研究对象，系统研究剪切带内外变形条件对岩石化学成分变异规律、研究糜棱岩中变形矿物的化学成分随剪切应变作用的对应关系韧性剪切带内，随着变形程度的增加，韧性剪切带糜棱岩中一些常量元素、微量元素和稀土元素和应变强度之间存在明显的对应关系，主要表现SiO2 和碱金属和大离子亲石元素如Rb，Sr和Ba的亏损以及REE总量增加。

The effect of austempering on the wear resistance of austempered ductile iron was studied.

等温淬火球墨铸铁(Austempered Ductile Iron，简称ADI)是近30年来铸铁冶金学方面的重大成就之一[1]。

Such as die-casting machine and injection molding machine castings ductile iron QT500-7, round drum Ductile Iron Casting QT450-10, hydraulic cylinder block castings ductile iron QT600-3, tire mold castings ductile iron QT700-2, Motor Block HT250 castings, machinery parts HT200 castings, heat-resistant cast iron pot and a variety of forceps iron castings, such as grades.

如压铸机和注塑机球铁铸件QT500-7，轮鼓球铁铸件QT450-10，液压缸体球铁铸件QT600-3，轮胎模具球铁铸件QT700-2，电机座HT250铸件，机械配件HT200铸件，耐热铸铁钳锅和各种牌号铁铸件等。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。