Nauki Techniczne

Archives of Foundry Engineering

Zawartość

Archives of Foundry Engineering | 2018 | vol.18 | No 3 |

Abstrakt

The paper presents selected granular ceramic materials available on the Polish market. Their characteristics have been determined in the
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Autorzy i Afiliacje

A. Dulska
J. Kilarski
A. Studnicki
J. Szajnar

Abstrakt

The paper deals with influence of multiple remelting on AlSi9Cu3 alloy with higher iron content on chosen mechanical properties.
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Autorzy i Afiliacje

M. Matejka
D. Bolibruchová

Abstrakt

The paper describes the studies of ternary SnZn9Al1.5 lead-free alloy from the viewpoint of its mechanical behavior as well as microstructure
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Autorzy i Afiliacje

M. Maj
K. Pietrzak
A. Klasik
N. Sobczak

Abstrakt

The paper describes influence of rare earth metals (REMs) on G20Mn5 cast steel microstructure and mechanical properties. The cerium
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Autorzy i Afiliacje

J. Kasińska

Abstrakt

A research of wear resistance of an austenitic cast iron with higher resistance to abrasive-wear and maintained corrosion resistance
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Autorzy i Afiliacje

D. Medyński
A. Janus

Abstrakt

The paper discusses the possibility of improving resistance of heat exchangers made of gray cast iron with flake graphite to hightemperature
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Autorzy i Afiliacje

M. Radoń
M. Jacek
A. Trytek
M. Tupaj
M. Mróz
A.W. Orłowicz

Abstrakt

The study reported in this paper was aimed at establishing the effect of values of parameters characterizing the process of superficial
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Autorzy i Afiliacje

M. Korzeniowski
A. Trytek
B. Kupiec
A.W. Orłowicz

Abstrakt

Based on the example of the development process of the cast suspension of a special-purpose vehicle the application of the integrated
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Autorzy i Afiliacje

M. Maj
R. Żuczek
J. Piekło
S. Pysz

Abstrakt

The paper presents the results of the computer simulations of solidification with consideration of the liquid phase movement. Simulations were conducted in a real, complex cast. There is a multi-stage resolution to the problem of convection in solidification simulations. The most important resolution concerns the development of the numerical model with the momentum and continuity equations, as well as conditions which are determined by the convection. Simulations were carried out with the use of our authorial software based on stabilized finite elements method (Petroy-Galerkin). In order to solve Navier-Stokes equation (with the convection element), Boussinesq’s approximation were used. Finite Elements Method (FEM) was responsible for the solidification. FEM is close to the heat conduction equation solution (with the internal heat source responsible for the heat released during phase transformation). Convection causes movement in the liquid phase in the solidifying cast and can significantly influence the process of heat transfer from the cast. It may change the distribution of the defects. Results of this article make it possible to assess the conditions in which the influence of the convection on solidification is significant.
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Autorzy i Afiliacje

E. Gawrońska
R. Dyja

Abstrakt

Aluminium alloys are one of the preferred materials especially for land and air transportation because of their high strength and lowdensity
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Autorzy i Afiliacje

E. Erzi
O. Gursoy
Ç.O.K. Yüksel
S. Kirtay
D. Dispinar

Abstrakt

The author has developed and patented several types of gas cupola furnaces, which, due to replacing coke with gas, do not emit carbon
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Autorzy i Afiliacje

V. Grachev

Abstrakt

The article describes the impact of germanium on the course of surface phenomena in casting alloys of silver used in gold smithing. The
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Autorzy i Afiliacje

M. Jesiotr
W. Trzaskowski
D. Trochimiak
P. Nawrocki
K. Łukasik
D. Myszka

Abstrakt

The copper droplets contained in the post-processing liquid slag are subjected to the treatment by the complex reagent. The complex
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Autorzy i Afiliacje

C. Senderowski
W. Wołczyński
A.W. Bydałek
P. Migas
K. Najman
P. Kwapisiński

Abstrakt

Determination of the ferrite content in austenitic steels, which solidified under defined conditions. Ferrite content in austenitic matrix was
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Autorzy i Afiliacje

J. Šenberger
A. Záděra
V. Pernica
V. Kaňa

Abstrakt

The article discusses the process of copper production in a slurry furnace and in a converter, with the indication of corrosion effects of the
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Autorzy i Afiliacje

M. Wędrychowicz
B. Basiura
A.W. Bydałek

Abstrakt

An intentional change in material properties is an important condition for castings production. It is one way how to meet the casting
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Autorzy i Afiliacje

J. Hampl
T. Válek
T. Hýbl

Abstrakt

Nowadays, there are growing demands on the accuracy of production. Most of this is reflected in precise manufacturing, such as the
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Autorzy i Afiliacje

O. Vrátný
A. Herman

Abstrakt

The results of investigations of sand shooting into the core box are presented in the hereby paper. The investigations concern the formation
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Autorzy i Afiliacje

R. Dańko

Abstrakt

AZ91 alloy was cast in a steel mould pre-exposed to three different temperatures: -196 ºC, 20 ºC and 650 ºC. The aim of the study was to
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Autorzy i Afiliacje

A. Dziadoń
T. Bucki
P. Porzucek

Abstrakt

This work presents the project of the application of Case-based reasoning (CBR) methodology to an advisory system. This system should
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Autorzy i Afiliacje

G. Rojek
K. Regulski
S. Kluska-Nawarecka
D. Wilk-Kołodziejczyk

Abstrakt

The necessity of obtaining high quality castings forces both researchers and producers to undertake research in the field of moulding sands.
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Autorzy i Afiliacje

S.M. Dobosz
K.A. Major-Gabryś
A.P. Grabarczyk

Abstrakt

The organo-inorganic commercial binder Albertine F/1 (Hüttenes-Albertus) constituting the starch-aluminosilicate mixture was directed to
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Autorzy i Afiliacje

K. Kaczmarska
S. Żymankowska-Kumon
B. Grabowska
A. Bobrowski
S. Cukrowicz

Abstrakt

Metallic bearing alloys have different types, most of which are tin (Babbitt) or bronze based. Bronze bearings are used at heavy duty
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Autorzy i Afiliacje

S.E. Vahdat
S. Karimifer

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