搜索结果: 1-15 共查到“材料科学 Castings”相关记录23条 . 查询时间(0.062 秒)
Analysis of structural properties of aluminium skeleton castings regarding the crystallization kinetics
Casting Skeleton casting Solidification
2009/12/3
Purpose: The aim of this research was the definition of technological parameters influence and modification treatment on structural properties of closed skeleton castings. Approach obtained maximal re...
State of the art of metal reoxidation study of iron castings
Metallic alloys Metal reoxidation Oxygen activity measurement
2009/12/1
Purpose: Metal reoxidation causes a number of iron castings defects, particularly when pouring them in greensand
moulds. One of them is pinholes the occurrence of which is explained by several hypoth...
Diagnostics of crack formation in castings using the logic of plausible reasoning
Mechanical properties Casting defects Cracks
2009/12/1
Purpose: Cold cracks are the defect often encountered in castings. Quick diagnosis of the cause of crack
formation enables preventing the formation of other cracks in the next casting process and ena...
Investment Casting of Gold Jewellery – Porosity in Castings.
Analysis of the structure of castings made from chromium white cast iron resistant to abrasive wear
Inoculation Chromium cast iron Boron carbide Chromium carbide
2011/4/1
It has been proved that an addition of boron carbide and disintegrated steel scrap introduced as an inoculant to the chromium white cast iron changes the structure of castings. The said operation inc...
Energetic conditions of effective recycling of composite castings
Metal composites Recycling Surface energy
2011/4/1
The most reasonable way of recycling the metal composite materials consists in separation of the components. In case of the composites with saturated reinforcement it is the only recycling method. Th...
An attempt of assessing the production perspectives concerning malleable iron castings
Ductile iron Nodular cast iron Production
2011/3/31
The paper presents a historical outline of production of the malleable cast iron castings on the territory of Poland during the past over a hundred years. There have been also gathered data concerning...
An attempt of assessing the production perspectives concerning malleable iron castings
Ductile iron Nodular cast iron Production
2011/3/31
The paper presents a historical outline of production of the malleable cast iron castings on the territory of Poland during the past over a hundred years. There have been also gathered data concerning...
Studies of structural and mechanical properties of aluminum skeleton castings
Skeleton casting Structure Compression strength AlSi alloy
2011/3/31
Skeleton castings were manufactured in accordance to elaborated production technology. The subject of the research was the microstructural analysis of non - monolithic castings. Analysis of metallogr...
Studies of structural and mechanical properties of aluminum skeleton castings
Skeleton casting Structure Compression strength AlSi alloy
2011/3/31
Skeleton castings were manufactured in accordance to elaborated production technology. The subject of the research was the microstructural analysis of non - monolithic castings. Analysis of metallogr...
The surface layer of austempered ductile iron investment castings properties
Austempered Ductile Iron Nitriding Carbonnitriding Wear resistance Corrosion resistance
2011/3/29
The article presents a unique process of carbonnitriding and nitriding the precision casting surfaces of austempered ductile iron.The results of the research are pointing that adequate process paramet...
The surface layer of austempered ductile iron investment castings properties
Austempered Ductile Iron Nitriding Carbonnitriding Wear resistance Corrosion resistance
2011/3/29
The article presents a unique process of carbonnitriding and nitriding the precision casting surfaces of austempered ductile iron.The results of the research are pointing that adequate process paramet...
The lost foam process in pilot castings plattes
Lost foam platetes Pattern Polystyrene Temperature
2011/3/30
The paper discusses the process of thermal evaporation of a foundry pattern. At several research-development centres, studies have been carried out to examine the physico-chemical phenomena that take ...
The lost foam process in pilot castings plattes
Lost foam platetes Pattern Polystyrene Temperature
2011/3/30
The paper discusses the process of thermal evaporation of a foundry pattern. At several research-development centres, studies have been carried out to examine the physico-chemical phenomena that take ...
Use of barbotage refining of aluminum-silicon alloy to improve mechanical properties of pressure castings
Al-Si alloy barbotage refining high pressure die castings mechanical properties
2011/3/30
This study presents the research results of the influence that barbotage refining on the mechanical properties of high pressure die casting made of AlSi12S alloy. The operation of refining was conduct...