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Based on the study of mineral crystallization sequence, solidus temperature and growth rates of quartz and albite, it suggests that Li_F_Na enriched granitic residual magma is qualified for the f...

对矿物结晶顺序、石英和钠长石的生长速率以及固相线温度的研究表明,富锂、氟、钠的花岗质残余岩浆完全具备形成雪球结构的条件。

Inner of high temperature is very easy to dock a place to the steel tube coating creation destroys welding because the operation is complicated and Asbestus rope heat insulation effect. Change in the area metallographic organization fever of arousing is affected and the remaining strain arouse strain corroding a dehiscence to create inner steel tube bringing about the ring oxygen powder series falls short of success. Carrying out a certificate is not a preferred plan.

此种方法由于扩口时的精度不高,现场施工环境和条件所限,很难达到预期的效果,加之操作复杂、石棉绳绝热作用的不充分性等引起的焊接高温很容易对钢管对接处的内涂层产生破坏,同时还引起热影响区金相组织发生变化、产生残余应力而引起应力腐蚀开裂,造成环氧粉末系列的内防腐钢管功亏一篑,实践证明不是最佳方案。

By gas chromatography analysis can objectively determine business card printing and membership card been packaging residual solvents and other cretonne content.

通过气相色谱分析可以客观地确定制卡和会员卡制作过的包装上残余溶剂及其他气味的含量。

It is shown that the strengthening mechanisms came from many aspects, including the tension and compression of crystal planes, the bending and distortion of crystal lattices, the increase of dislocation density, the formation of cellular dislocations, the transformation of part of the residual austenites.

以300M超高强度钢为例,运用多种测试手段,如TEM、SEM、XRD以及金相分析技术,发现强化层组织中晶面的拉伸和压缩,晶格的弯曲和歪扭,位错密度的增高,胞状位错的形成,部分残余奥氏体向形变马氏体的转变等现象,在综合分析的基础上指出,位错强化是抗疲劳增寿的主要因素。

The relations of metallography and remains austenitic to bearing's life.

轴承工作表面的金相组织和残余奥氏体对寿命的影响。

By using the calculated results of EET theory, the local valence electron structure elements of residual chemical bonds of Al-Si and Mg-Al alloy melts, that is, the residual bond structure models, were established. From the viewpoint of effect of pressure on melt structure, the essential reason of deviation phenomenon for maximum solution point and eutectic point in thermodynamics equilibrium phase diagram was analysed. Moreover, under pressure condition, the change of thermodynamics equilibrium phase diagram was macroscopic reflection of microstructure change of alloy melt.

运用固体与分子经验电子理论的计算结果分别建立Al-Si、Mg-Al两种合金熔体的剩余化学键的局域价电子结构基本单元即残余键结构模型,从压力对熔体结构作用的层面,分析热力学平衡相图中最大固溶点和共晶点发生偏移的本质原因,并指出压力作用下热力学平衡相图的变化是合金熔体微观结构信息变化的宏观反映。

Using the analysis of differential scanning calorimetry, three exothermic peaks were found which were mainly attributed to crystallization of α-(373℃), relaxation of internal strain (410℃) and crystallization of the residual amorphous matrix (540℃) respectively.

对机械合金化形成的非晶〓的DSC测量表明:在40℃到700℃范围内,有三个位于373℃,417℃和540℃左右的放热过程,分别α-相的结晶,内应变的降低和残余非晶相的晶化。

There are two kinds of spinels in a granulite terrain of Yushujgou, South Tianshan Mountain. One occurs in the intermediate and basic granulite units and is characterized by enriched Al and poor Cr, belonging to Al_spinel. In thin sections it shows dark green color and subhedral to anhedral form, and coexists with other metamorphic minerals, suggesting a neogenic metamorphic mineral of granulite facies. The other occurs in the adjacent ultramafic rock unit, belonging to Cr_spinel. In thin sections, it is dark brown in color and is scattered among olivine, clinopyroxene and orthopyroxene as irregular grains, indicating a stable residual mineral in the process of granulite facies metamorphism.

新疆榆树沟麻粒岩地体中发育两类尖晶石:一类见于中、基性麻粒岩体中,其化学成分富 Al贫 Cr ,属铝尖晶石,镜下为深绿色,呈半自形至他形粒状,与其它变质矿物共生,表现为麻粒岩相的新生变质矿物;另一类发育在空间上与麻粒岩体紧密相邻的超镁铁质岩体中,为铬尖晶石,镜下为深褐红色,呈不规则粒状分布于橄榄石、斜方辉石和单斜辉石之间,为麻粒岩相变质过程中稳定的残余矿物。

The epicontinental volcanic magma arcs and residual sea basins that occurred at the stages of the oceanic crust subduction and oceanic basin closure, and the epicontinental volcanic...

在洋壳俯冲和洋盆闭合阶段陆缘火山岩浆弧、残余海盆和俯冲带上形成的陆缘-火山碎屑沉积相、含碳质沉积相及混杂蛇绿岩块等是金丰度较高的地质体,构成了成矿系统潜在的矿源层。

The morphological structure of cured vinyl-ester resin and the formation of two-phase structures in vinyl-ester resin has been studied by using SEM and differential scanning calorimetry.The results demonstrated the existence of clusters of gel-particles with a size of about 20 μ m,each cluster of gel-particles containing many gel-particles with coral-like structures.The formation of gel-particles resulted in two-phase structure characterized by the two peaks in the rescanned DSC thermographs of the resin. The cure conditions (temperatures,post-cure) affected microstructure in the cured resins.

采用SEM、DSC研究了乙烯基酯树脂固化过程中凝胶粒子的形成过程及两相结构对固化放热的影响,结果表明,凝胶粒子在固化树脂中呈群状分布,每群凝胶粒子的最大尺寸为20μ m左右,每群凝胶粒子由许多独立凝胶粒子组成;凝胶粒子的形成使树脂产生了两相结构,使树脂的恒温DSC残余放热呈双峰分布;树脂的固化条件影响其微观结构。

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