搜索结果: 1-15 共查到“冶金工程技术 Iron”相关记录46条 . 查询时间(0.066 秒)
An Assessment of the Derivative Thermal Analysis of Grey Cast Iron
DTA diagram Chemical composition Hardness Tensile strength
2011/3/11
The study presents a method used for assessment of the consistency of results obtained by measurements and calculated by computer from a graph of Derivative Thermal Analysis (DTA) to determine the che...
The low-aluminium cast iron of reduced silicon content treated with cerium mischmetal
Metallography Low-aluminium cast iron Spheroidization
2011/3/15
The work presents the effect of cerium mischmetal used in quantities of 0.1 and 0.2 wt-% and ferrosilicon used in quantities from 0.5% to 1.5% on the alloy matrix and the shape of graphite precipitate...
Carburization process rate in production of synthetic cast iron
Casting Powder injection Carburizing
2009/12/3
Purpose: The main goal of the paper was to determine the possibility of synthetic cast iron production on base of steel and process scraps as well as the carburization effectiveness, realized with thr...
Influence of Al and Ti on microstructure and quality of compacted graphite iron castings
cast iron crystallization pinholes compacted graphite
2009/10/23
The contribution is aimed at study of influence of chemical composition of compacted graphite cast iron (CGI) on microstructure and surface quality of castings, particularly on the occurrence of pinho...
Dependence of quality properties for grey iron on used raw materials
grey iron raw materials mechanical properties
2009/10/23
Grey iron castings keep the first place among castings on base of iron. Present trend in growing entrance production costs of cast stock force manufacturer to cost minimizing. Therefore is most actual...
Influence of the section size and holding time on the graphite parameters of ductile iron production
ductile iron section size microstructure
2009/10/23
This work was conducted to establish the conditions required to produce a desirable structure of the castings of various section sizes. This investigation was focused on the study of the influence of ...
Competitive Biosorption of Chromium(VI),Iron(III) and Copper(II) Ions From Binary Metal Mixtures By R.arrhizus and C. vulgaris
Waste water Heavy metal ions Competitive biosorption
2009/10/15
In this study, the simultaneous adsorption process of Cr(VI), Fe(III) by R. arrhizus and C. vulgaris and Cu(II) in pairs of metal mixtures were investigated and compared to single component systems. T...
Production of Iron Powder from Iron (II) Sulphate
Goethite dehydration reduction iron powder
2009/10/13
The production of iron powder from concentrated iron solutions obtained during surface finishing (pickling)carried out to produce zinc or tin coated thin sheets, was investigated. Goethite precipitati...
Optimization of Conditions to Produce Manganese and Iron Carbides from Denizli-Tavas Manganese Ore by Solid State Reduction
Solid state reduction manganese carbide iron carbide
2009/10/9
In this work, optimization of conditions in the production of manganese-iron carbides from Denizli-Tavas manganese ore by solid state carbothermic reduction in argon atmosphere has been investigated. ...
The influence of cooling rate on the hardness of cast iron with nodular and vermicular graphite
Mechanical properties Hardness Cooling rate
2011/3/17
The paper presents hardness changes for cast iron with nodular and vermicular graphite, determined within the separately cast test blocks. Investigation has comprised cast irons with similar ferrite a...
Analysis of fracture mechanism in austenitic ductile iron with 30%Ni after impact test
Austenitic nodular graphite cast iron Impact energy Tensile strength,
2011/3/17
The study presents the results of impact tests carried out on austenitic ductile iron with 30% Ni. The examined material was subjected to dynamic loads within a wide range of temperatures from (–196°C...
Application of evolutionary algorithm for cast iron latent heat identification
Application of information technology to the foundry industry Solidification process Numerical techniques
2011/3/17
In the paper the cast iron latent heat in the form of two components corresponding to the solidification of austenite and eutectic phases is assumed. The aim of investigations is to estimate the value...
Crystallization of nodular cast iron with carbides
Theory of crystallization TDA method Nodular cast iron with carbides
2011/3/17
In this paper a crystallization process of nodular cast iron with carbides having a different chemical composition have been presented. It have been found, that an increase of molybdenum above 0,30% c...
The sort of carburization and the quality of obtained cast iron
Theoretical bases of foundry processes Cast iron Carburization Carburizers
2011/3/17
In the production of cast iron, the pig iron’s amount in charge material is more and more often limited, and replaced by steel scrap. That extorts the necessity of know-how the carburization and one i...
Application of experimental data for numerical simulation of cast iron solidification
Application of Information Technology to the Foundry Industry Solidification Process
2011/3/17
Numerical analysis of cast iron solidification process is presented. The system casting – shell mould is discussed. The parameter controlling the solidification process called a substitute thermal cap...