研究了洁净度和组织均匀性对四种管线钢板坯性能的影响。
The influence of purity on mechanical properties of pipeline steels had been investigated.
实验表明:熔渗铜不仅可以提高材料的密度,而且可以改善材料的组织均匀性,提高材料的合金化程度。
It has been found that high density, homogenous of microstructure and high alloying degree can be attained by copper infiltration.
研究了1.2311塑模钢扁钢尺寸、终轧温度、回火温度等主要工艺参数对其轧后硬度、回火硬度及组织均匀性的影响。
The influence of processing parameters, such as finishing rolling and temper temperatures, on the hardness and microstructure of 1.2311 plastic die flat steel were studied.
结果表明:电渣重熔法生产的A718钢具有高的纯净度和组织均匀性,选用适当的渣系和生产工艺路线,生产总成本有所下降。
The results showed that A718 produced by ESR has a higher cleanliness and structural unity. Taking suitable refining slags and procedures, the total productive cost can be reduced.
例如,把四盆植物放在一排并均匀的分放在地板上会看起来有组织性。
For example, placing four plant POTS in a row and evenly spaced apart on a floor produces an organized look.
结论:阑尾粘液囊肿ct表现具有囊性水样密度或软组织密度,密度均匀,增强扫描无增强或囊壁仅有轻度环形增强等特征。
Conclusion: Homogenous cystic or soft tissue density and no enhancement or just lightly annular enhancement may be the main characteristic changes on ct in case of appendix mucocele.
结果发现:稀土显著细化了半固态铝合金的球形晶粒组织,并提高了球形晶粒的圆整度和均匀性。
The experimental result shows that re can refine the globular grains of semisolid Al-alloy remarkably, improve the roundness and uniformity of globular grains.
同时还表明随着带钢厚度增加,超快速冷却条件下厚度方向的温度梯度显著增大,对于带钢内部组织的均匀性将产生不利的影响。
With increasing the thickness, the temperature gradient in thickness direction is larger for the same cooling intensity, which would affect the uniformity of the microstructure in strip.
结果表明:回火索氏体是最佳的组织形态;微观硬度的不均匀性显著影响钢的表面加工质量。
The results indicated that the tempered sorbite was the optimum microstructure, the inhomogeneous distribution of micro hardness affected markedly the finish quality of the steel surface.
在假定该材料宏观上是均匀与连续的条件下,选取了织物的一个完全组织及所包含的树脂作为一个代表性体元来建立分析模型。
Assuming that the composites are homogeneous and continuous on macrostructure, a representative volume element (RVU) including a stitch repeat and resin was taken to setup analysis model.
目的:尝试使用简单的动态种植方法来提高成纤维细胞在三维支架上的种植效率和均匀性,以更有效地构建组织工程皮肤。
Objective:To explore a simple way to improve seeding efficiency and uniformity in constructing 3-D dermal equivalent, in order to effectively construct tissue engineered skin.
微量的硼改善合金钢的组织与成分均匀性;
The thee of Boron can improve the uniformity of microstructure and distribution of composition in alloy.
研究结果表明:半固态挤压成形合金具有细小、均匀的微观组织和良好的耐磨性,磨损失效形式以滑动和磨粒磨损为主。
The results show that the alloy possesses fine and uniform microstructure and excellent wear resistance in which slide and abrasive wear are dominant in the wear behavior.
结果表明,在一定条件下,激光熔凝处理可进一步提高纯铁渗稀土层组织的致密性与均匀性,显著提高稀土渗层的耐蚀性。
The results show that the laser surface melting treatment improves greatly the homogenization, compaction and the corrosion resistance of rare earth permeating layer under the condition of test.
利用光镜、显微硬度计研究了铬含量对低碳合金钢组织、硬度、冲击韧度及耐均匀腐蚀性的影响。
The influences of chromium content on the hardness, impact toughness and corrosion resistance of low carbon alloy steel were studied using om and hardness tester.
对炉内流场的数值模拟证明了该新型还原炉在流场组织、温度场均匀性以及强化金属镁的还原过程等方面具有明显的优势。
Numerical simulation of flow field shows the new furnace has the advantages of reasonable flow organization, homogeneous temperature profile and m...
结果表明,改变铜液流动方式能够细化晶粒,提高凝固组织的均匀性。
The results reveal that the change of flow ways of liquid copper can evidently refine the grain size and improve the distributed uniformity of solidified structure.
主要技术路线是高洁净度、高均匀性、微合盒化、超细晶粒及组织。
The characters of new steels are high cleanliness, high homogeneity, ultra-fine grained and micro alloyed.
为了提高铸坯凝固组织的均匀性,减轻宏观偏析,提出了自耗式振动激发金属液形核技术。
In order to enhance the uniformity of slab solidification structure and reduce macrosegregation, a self consumption of vibration excitation of nuclear technology in liquid steel was proposed.
由于低屈强比和组织均匀,管线钢采用针状铁素体组织可以具有较好的(管)成型性及耐腐蚀性。 用针状铁素体管线钢平板或卷板制造的焊管的力学性能彼此相差不大。
Pipeline steel adopting the spicular ferrite owns the better properties of forming and anti corrosion for its low ratio of yield strength and tensile strength and uniform microstructure.
“C”曲线测定结果表明,设计钢具有高的贝氏体淬透性,可在较大截面上获得均匀的组织和性能。
The results of measurement of the "C" curve show that the steels designed have a high bainitic hardenability and the uniform structure within a bigger cross section can be obtained.
显微镜见到的粒子,在颜色、组织结构、均匀性以及对水的溶解和吸附性方面都各不相同。
Microscopically visible particles differ in colour, texture, uniformity and in water solubility and absorption.
本文采用概率断裂力学方法和可靠性分析方法,针对压力容器焊接接头的组织不均匀特点,研究了焊缝区疲劳失效概率模型。
The paper studies the fatigue failure probabilistic model of the weld zone in welded joint using probabilistic fracture mechanics and reliabilitistic analysis methods.
经过稀土渗入处理后的镁合金,显微组织均匀、致密,有利于耐蚀性的提高。
The treatment may homogenize, densify microstructure, and further more improve the surface corrosion resistance.
疲劳试样多数断于接头的热影响区,造成这一结果的主要原因是热影响区的组织不均匀性和氢含量相对较高。
The fracture occurres at heat affected zone (HAZ) of most fatigue specimens. This is due to the structure inhomogeneity and the higher hydrogen content of materials at HAZ.
结果表明,细化热轧板的晶粒、改进热轧板组织的均匀性可以提高热轧板的冷轧和反复弯曲性能。
The plasticity of the hot-rolled plate would be better by making the grains fine and improving the homogeneity in the hot-rolled structure.
连铸坯的凝固组织和成分偏析是影响钢材力学性能均匀性的重要因素。
Solidification and composition segregation of billet are important factors which affect homogeneity of mechanical property of steel.
由于血液灌注差异、组织结合力、局部pH值和细胞膜通透性差异等的不同,药物分布一般也是不均匀的。
Distribution is generally uneven because of differences in blood perfusion, tissue binding, regional pH, and permeability of cell membranes.
冷变形提高了钢中位错密度,也加剧了位错分布的不均匀性,后者是预应变加速组织演变的直接原因。
Cold deformation results in increasing of dislocation density and inhomogeneous dislocation distribution, the latter is the direct reason for pre-strain to promote microstructural evolution.
冷变形提高了钢中位错密度,也加剧了位错分布的不均匀性,后者是预应变加速组织演变的直接原因。
Cold deformation results in increasing of dislocation density and inhomogeneous dislocation distribution, the latter is the direct reason for pre-strain to promote microstructural evolution.
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