It is justified by the observed results that non-metallic inclusion can act as the heterogeneous nuclei of nodular graphite in this paper.
提供了非金属夹杂物作为球状石墨非自发形核心的视觉证实。
Adding different alloy combination of RE, copper and titanium, then through gestation and nodulizing disposal, we got the fine texture of ferrite pearlite and spheroidal graphite.
通过在中硅耐热铸铁中添加不同组合的合金元素稀土、铜、钛使其合金化,经过孕育和球化处理,得到铁素体+珠光体+球状石墨的金相组织。
Spheroidal graphite can be observed in the region approaching surface of the smaller section size gray iron bars by continuous cast The experiment shows that spharical graphite may crystallize in commercial gray cast iron with suitable chemical composition under certain cooling rate This phenomenon can be explained by the mechanism of diffusion controlled growth of graphit
在较小截面的连铸灰铸铁型材表层，观察到具有球状石墨的金相组织；经过试验证明，在一定冷却条件下，未经处理过的灰口铁液也可能析出球状石墨。
The fracture behaviour of cast irons with graphite irregularity S=0 and spheroidal graphite iron under three different stress modes was investigated.
试验发现：当裂纹遇到与其平行的片状石墨时，裂纹将在石墨内部以（０００１）面之间的解理而扩展；当裂纹遇到与其垂直的片状石墨时，裂纹将沿石墨／基体界面处扩展，也即界面的脱粘；当裂纹遇到球状石墨时，裂纹上要在二次石墨中前进。
The best nucleus of spherical graphite should be some non-metallic impurities or some bubbles formed by surface active elements,which have low boiling points.
通过对低碳球铁中球状石墨核心的分析和研究,探讨了核心形状及其物质构成对低碳球铁中石墨球化的影响规律。
Most nuclei with spherical or near spherical shape can grow up into spherical graphite, while nuclei with no regular shape can hardly grow.
研究了低碳球铁中球状石墨的内部结构及核心形状 ,探讨了核心形状对石墨球化的影响规律。
Natural spectroscopically pure scalelike graphite powder(400 mesh) and spherical graphite(400 mesh) were used respectively as carbon source,Fe-based alloy powder(75 μm) was used as solvent-catalyst.
本文研究了球状石墨的粉压成型特性。
The influences of s.
介绍了球墨铸铁的微观和宏观凝固特征,薄壁和厚壁球铁的凝固形貌特点,以及球铁铸件壁厚与凝固时间的关系,同时分析了石墨球数和共晶晶粒数对球墨铸铁凝固品质的影响。
By changing weakly-bonded materials and adding strengthened granular graphite to bit matrix,the diamond exposure of bit was improved.
针对坚硬致密岩石钻进中遇到的钻头打滑、钻进效率低的问题,通过改变弱包镶材料,加入强化的石墨颗粒,进行试验与研究,获得了颗粒状石墨能提高金刚石出刃的初步效果。
"also known as nodular cast iron and spheroidal graphite iron, ductile iron solidifies with free carbon in a spheroidal graphite from."
也称为可锻(韧性)铸铁或球状石墨铸铁,以球状石墨形式存在的游离碳使球墨铸铁变得更加坚固。
Compression molding of spherical carbon and synthesis of diamond from it
球状石墨的粉压成型及以其为原料的金刚石生长
In Ductile Iron spheroidal nodules also eliminate the crack effect of flake graphite which is exhibited in cast iron.
球墨铸铁内部的球状结构也能够消除铸铁内部的薄片石墨容易产生的裂缝现象。
Influence of Size and Number ofGraqhite Nodules on Wear Property of DCI
石墨球径和球数对球墨铸铁耐磨性的影响
Analysis and Prevention About Graphite Blooming of the Nodular Cast Iron;
球墨铸铁石墨开花问题的分析与防范
Analysis and Processing of Graphite Blooming of Ductile Iron
球墨铸铁石墨开花问题的分析与处理
granular graphite cooled reactor
颗粒状石墨冷却反应堆
The Research on Computer Pricing System in Graphite Noduliaing Grade of Nodular Cast Iron;
球墨铸铁石墨球化级别计算机评价系统研究
Analysis on the Cast Condition Graphite in Production of the Ferrite Nodular Graphite Malleable Casts
铁素体球墨可锻铸铁件生产中铸态石墨的分析
Application of Graphite Chills to the Heavy-Section Ductile Iron Castings
石墨冷铁在大断面球墨铸铁件上的应用
Study on Preparation and Properties of Graphitized Nano/Micro-structured Carbon Spheres;
纳微米石墨化碳球的制备及性能研究
Application of Fractal in Fuzzy Evaluation System of Graphite Shape in Nodular Cast Iro
分形学在球墨铸铁石墨形态模糊评价系统中的应用
Fundamental Research on Solid-state Graphitization in Spherical Graphite Iron by Pulse Current;
脉冲电流作用下球墨铸铁固态石墨化的基础研究
Effect of As-cast Graphite on Mechanical Properties of RE-Mg Spheroidal Graphite Malleable Iron
铸态石墨对稀土镁球墨可锻铸铁件力学性能的影响
GRAPHITE NODULAR PHENOMENA DURING THE ESR OF CAST IRON
灰铸铁电渣重熔过程石墨球化现象的研究
A Study on the Kinetics of Oxygen Reduction on Vibrational Ball Milled Graphite
氧在振动球磨石墨上阴极还原动力学的研究
Study on the Solidification Process and Graphitization Mechanism in Low-carbon Ductile Iron;
低碳球铁凝固过程与石墨化机制的研究
Study on Modification Spherical Graphite as Anode Materials in Lithium Ion Battery;
改性球形石墨用于锂离子电池负极材料的研究