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1)  spheroidal graphite
球状石墨
1.
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。
2.
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
3.
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。
2)  spherical graphite
球状石墨
1.
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。
2.
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。
3.
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。
3)  nodular graphite
球状石墨
1.
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。
4)  nodule count
球[状石]墨粒数
5)  spheroidal-graphite cast iron
球状石墨铸钢
6)  spheroidrecrystallized graphite
类球状再结晶石墨
补充资料:半石墨,不纯石墨
CAS:7782-42-5
分子式:C
中文名称:石墨;石墨粉;石墨垫片;墨铅;笔铅;石墨润滑剂,胶体石墨,导电敷层;黑铅(石墨);石墨,碳-陶质耐火材料,;半石墨,不纯石墨
英文名称:Graphite;Graphite powder;aerodag g;ag 1500;aquadag;as 1;at 20;atj-s;atj-s graphite;black lead;c.i. 77265;c.i. pigment black 10;canlub;cb 50;ceylon black lead;cpb 5000;dc 2;eg 0;electrographite
性状描述:灰黑色具金属光泽的腻滑物质。熔点3527℃。相对密度1.9-2.2。属炭的同素异型体,有良好的导电性和传热性,在常温下化学活泼性限小。
生产方法:原料矿产石墨经氢氟酸;盐酸提纯得纯得到纯石墨粉。第一次提纯:原料石墨含量约89%,含有二氧化硅;铁等杂质。在内衬取氯乙烯的反应桶内,加入石墨粉,盐酸;氢氟酸,用蒸汽加热至120℃搅拌数小时后放入离心机用水洗至中性。提纯后的石墨用气流干燥器干燥,然后先用万能打粉机破碎至325目颗粒度,再经气流粉碎,颗粒度达1.5u左右。经气流粉碎后的石墨粉配上纯浆在振动磨内振动数天,将此物料根据石墨不同颗粒在水中沉降速度不同进行分级。分级后的石墨料,因经过振动磨处理,夹杂着较多杂质,需进行第二次提纯,提纯方法和第一次提纯相同。提纯后的石墨粉灰分不大于0.5%,根据用途配入相应稳定剂;在球磨机内进行球磨混合,即得各类成品。例如配成油剂;粉剂;水剂等。
用途:水剂用作拉制难熔金属的润滑剂;玻璃工业涂模剂;增加导电性能和高温隔热材料,电子工业用于制作遮屏或导电膜等。粉剂用作耐高温润滑剂基料;耐腐蚀泣滑基料,橡胶;塑料的填充料,炭膜电阴以及配制电液。油剂用作润滑剂;高温密封润滑脂;脱模剂等。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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