The hydrogenation process has the more advantages on environment protection than iron powder method, and has better quality.
试验数据表明，加氢法比铁粉还原法的产品质量好，且在环保方面有优势。
The processing technology of electroless copper plating on graphite powders by iron powder method and formaldehyde method were studied and evaluated.
研究比较了两种化学方法——铁粉法和甲醛法在石墨粉表面镀铜的工艺。
On the other hand, as iron powder surface modification method, the copperized replacement technics is simple, low cost, fast sediment speed and has little environmental pollution.
另一方面，置换镀铜作为铁粉表面改性方法，工艺简单，沉积速度快，成本低，工艺流程中环境污染小。
The application of air-acetylene flame atomic absorption spectral method for measuring the iron content in carbonyl nickel powder is studied.
文章运用了空气-乙炔火焰原子吸收光谱法进行羰基镍粉中铁含量的测定。
In situ magnetization X-ray powder diffraction method is firstly applied to measure magnetostriction coefficient of reduction iron powder.
首次报导X射线粉末衍射法测量铁粉晶胞的磁致伸缩系数。
It is necessary to research a new method of SPFS preparation by solid reaction process with industrial scrap iron powder.
有必要探索由工业废铁粉经固相反应直接制取固体聚合硫酸铁的工艺。
The preparation method and the influence factor for several super fine iron powder have been introduced in this paper as well as the main application fields.
详细介绍了目前主要的几种超细铁粉的制备方法及其影响因素，并介绍了其主要应用领域。
A preparation method of an iron powder material suitable for application in high velocity compaction technology belongs to the technical field of powder metallurgy.
一种适于高速压制技术应用的铁粉原料的制备方法，属于粉末冶金技术领域。
The paper describes the raw material, equipment, flowsheet and method of the briquetting test of sponge iron powder. Suitable parameters were obtained through the research.
叙述了海锦铁粉压块成型试验的原料、设备、流程、试验方法及结果。
There is a close relationship between the magnetic characteristics of iron cores and the coating method of powder and the technical parameters.
粉末的包覆方式和工艺参数同铁粉芯的磁性能有着密切的联系。
Through using the theory analysis and calculated method, writers analysis it will cause effect on sintering process if the refined iron powder is used.
通过使用理论分析和计算，分析了精铁粉应用于烧结时能够产生的主要影响。
The occurrence relationship between Fe and Ga and Ge in the reduced iron powder obtained from zinc residue, was analyzed by chemical phase method.
采用化学物相法研究了浸锌渣还原铁粉中铁、镓、锗的赋存关系。
A highly effective method for preparation of carbon-coated iron carbide nanocrystals by AC carbon arc discharge was studied, the yield of magnetic micro powder was over 90%.
采用交流碳弧法高效合成碳包碳化铁纳米晶磁性微粉，磁性微粉产率达90 %以上。
A method for testing trace amounts of Si, p, Mn, As, Zn in iron ore powder by ICP - AES is presented, which is convenient, rapid and accurate.
运用电感耦合等离子体发射光谱法测定铁矿石中的硅，磷，锰，砷，锌该方法简便、快速、准确。
Objective: to develop a new method for determination of iron in milk powder by standard addition method-flame atomic absorption spectrometry with AGAR suspension sampling technique.
目的：建立用琼脂悬浮液进样，标准加入火焰原子吸收法测定奶粉中铁的方法。
Increasing silicon content on the surface of common silicon steel sheet could be realized through the use of composite electroplating method of iron with silicon powder or with ferrosilicon powder.
通过复合电镀铁与硅粉及铁与硅铁粉的方法在普通硅钢板表面增硅。研究了复合电镀工艺及粉末颗粒对复合层增硅量的影响。
A new method based on the techniques of closed vessel microwave digestion and derivative flame atomic absorption spectrometry is presented for the determination of iron and zinc in milk powder.
建立了一种利用密封微波消化溶样技术结合导数火焰原子吸收光谱法测定奶粉中锌和铁的方法。
A new method based on the techniques of closed vessel microwave digestion and derivative flame atomic absorption spectrometry is presented for the determination of iron and zinc in milk powder.
建立了一种利用密封微波消化溶样技术结合导数火焰原子吸收光谱法测定奶粉中锌和铁的方法。
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