搜索结果: 1-10 共查到“冶金工程技术 quality”相关记录10条 . 查询时间(0.156 秒)
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...
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...
Eutectic cell and nodule count as the quality factors of cast iron
Gray cast iron Ductile iron Eutectic cell count Nodule count
2011/3/15
In this work the predictions based on a theoretical analysis aimed at elucidating of eutectic cell count or nodule counts N were experimentally verified.
Quality of the joint between cast steel and cast iron in bimetallic castings
Composites Skeleton casting Bimetal Cast steel Cast iron
2011/3/15
The paper presents conception and production method of skeleton composite castings with use of cast steel G35CrSiMnMoNi skeleton casting and chromium cast iron EN-GJN-XCr15 filling.
The study discusses the possibility of control of the high-quality grey cast iron and ductile iron using the author’s genuine computer programs. The programs have been developed with the help of algor...
The aim of the present study has been designing and putting in operation of a stand for sonic testing equipped with modern and readily available numerical devices and with the author’s own computer pr...
Application of stepped pattern in quality assessment of investment castings
Casting quality Investment patterns Stepped pattern
2011/3/15
The article proves that the stepped pattern can be a versatile tool in examinations of casting quality, i.e. in determination of dimensional accuracy and surface microgeometry. Moreover, the pattern m...
Optimization of Heat Treatment in Aspect of Production's Costs Reducing and Improving of Casting Quality from Duplex Cast Steel
Heat treatment Duplex cast steel Mechanical properties Ferrite - δ
2011/3/11
The paper determines possibilities of cost optimisation in the production of GX2CrNiMoCu25-6-3-3 type duplex cast steel castings through selection of appropriate solution heat treatment temperature, w...
Improvement of quality of a gravity die casting made from aluminum bronze be application of numerical simulation
Gravity die casting Aluminum bronze Numerical simulation
2011/3/10
The paper describes the possibility of improving the quality of gravity die cast connectors for overhead power transmission lines. The castings were made from aluminum bronze, grade CuAl9Fe1Ni1. A MAG...