It is considered that using pig iron in large fraction would increase shrinkage tendency of the molten iron and decrease properties of castings;selection of carburizing agent is the key of melting with full steel scrap charge;it is necessary,in order to produce hi-strength gray iron castings with relatively high carbon and silicon content,to take .
分析了熔炼工艺、碳硅成分、锰硫成分、合金化及孕育处理对高强度灰铸铁铁液质量的影响,认为大量使用生铁使铁液收缩倾向增大且使铸件性能降低;增碳剂的选用是全废钢熔炼的关键;在较高碳硅含量条件下生产高强度灰铸铁件,必须设法在熔炼过程中增加石墨晶核,并增硫防止石墨长成粗大片状;适当的合金化和孕育处理,可以使铁液的收缩倾向得到明显改善。
A carburizing agent, a kind of semi graphite, for steel making is developed.
以优质无烟煤为原料 ,经选矿提纯 ,提高煤的碳含量 ,再经石墨化处理制得炼钢增碳剂。
This paper presents the process of getting the qualified molten iron through melting scrap,carburant and moderate cast pig iron, which offers a new way for producing ductile iron.
利用废钢、增碳剂并适当配入铸造生铁,通过熔炼来获得合格的原铁水,然后经球化孕育处理形成球墨铸铁,为球墨铸铁生产开辟出一条新的途径。
The main factors,which determines the effectiveness of carburant, are the melting rate and absorptivity when the cr.
在增碳原料固定的条件下,决定增碳剂增碳效果的因素主要是熔化率和吸收率。
To resolve the problems above,we appling synthetic casting iron in the cylinder s producing,that is just to apply scrap steel and carburant in the producing.
为解决铸铁熔炼所需原材料生铁价格的不断上涨,以及生铁的长期使用带来的遗传影响,使铸铁产品的机械性能和金相组织出现一定恶化等问题,在缸体类铸铁产品的生产中,采用合成铸铁,即废钢+增碳剂增碳的方式进行铸铁生产。
The mechanism of solution of recarbonizer into cast iron melt is discussed.
介绍了增碳剂在铁液中溶解的机理和目前主要采用的投入法和喷粉法增碳工艺。
Determination of sulphur in recarburizer by high frequency combustion infrared absorption method
高频燃烧-红外吸收法测定增碳剂中的硫
The results show that lnH of alkanes and aro-matic hydrocarbons decreases with the increase of solute carbon number and solvent carbon number.
结果证明：亨利系数随着溶质碳数和溶剂碳数的增加而减少。
a complex carbohydrate found in many plants and used as a sweetening agent.
许多植物中的一种碳水化合物，用作增甜剂。
Experiment Study on the Flexible Curing and Toughness Modification of Carbon Fiber Epoxy Resin Adhesive;
碳纤维环氧树脂胶粘剂增韧改性试验研究
Photographic silver halide emusions are spectrally sensitized with a tricarbocyanine dye.
照像卤化银乳剂是用三碳青染料进行光谱增玉的。
Photographic silver halide emulsious are spectrally sensitized with a tricarbocyanine dye.
照像卤化银乳剂是用三碳菁染料进行光谱增感的。
Thiol Enhanced Stability of Au^Pt Nano-particles onto Multiwalled Carbon Nanotubes
巯基增强多壁碳纳米管上Au^Pt纳米催化剂稳定性研究
Study on Mechanical Behavior of CF/BMI Composites Affected by Different Sizing of Carbon Fiber
上浆剂对碳纤维增强双马树脂基复合材料力学性能的影响
Effect of Sintering Aids on Microstructure and Properties of CNTs/AlN Ceramics
烧结助剂对碳纳米管增强氮化铝陶瓷结构与性能的影响
The modified expoxies, ie, those with plasticizers added to improve workability, were found to be incompatible with the fluoro carbon flotation fluids.
改性的树脂，即加入增型剂改善其操作性能的树脂，与氟碳化合物的浮液是不相容的。
Vesicle Solubilization of Fullerenes and Stable Dispersion of Carbon Nanotubes in Salt-Free Cationic/Anionic Surfactant System;
无盐阴/阳离子表面活性剂中富勒烯的囊泡增溶和碳纳米管的稳定分散
Electrochemical Determination of Vitamin E in Vitamin E Capsules at Carbon Paste Electrode with Cationic Surfactant as Sensitizing Agent
阳离子表面活性剂增敏碳糊电极电化学测定维生素E胶丸中维生素E的含量
Chemical reagent--Barium carbonate
GB/T654-1977化学试剂碳酸钡
Engine-decarbonising chemicals
引擎脱碳用化学制剂
wool carbonizing protecting auxiliary
羊毛碳化保护辅助剂
Chemical reagent--Potassium carbonate
GB/T1397-1995化学试剂碳酸钾
Food additive--Sodium carbonate
GB1886-1992食品添加剂碳酸钠
Chemical reagent--Sodium carbonate decahydrate
GB/T9856-1988化学试剂碳酸钠