Autor: Biernacki, R. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Non-ferrous Metals Precision Casting Shape Accuracy in Terms of Ceramic Moulds Anisotropic Material Properties
Autorzy:: Biernacki, R.
Haratym, R.
Kwapisz, J.
Powiązania:: https://bibliotekanauki.pl/articles/380660.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: casting shape accuracy
lost wax casting
ceramic mould
anisotropy properties
dokładność kształtu
metoda traconego wosku
forma ceramiczna
własności anizotropowe
Opis:: Shape accuracy analysis of aluminum alloy castings was made in function of ceramic mould properties. Taken it to account was anisotropy of those properties, including influence of ceramic mould properties on the porosity of castings. Ceramic moulds strains, which occur in sintering phase, were evaluated with taking into account the design and production process.
Źródło:: Archives of Foundry Engineering; 2013, 13, 1 spec.; 5-8
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Analysis of Impact of the Multilayer Ceramic Moulds Quality on the Steel Precision Castings Dimensional Accuracy
Autorzy:: Haratym, R.
Biernacki, R.
Kwapisz, J.
Powiązania:: https://bibliotekanauki.pl/articles/379697.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: lost wax casting
dimensional accuracy
multilayer ceramic mould
ceramic mould expansion
metoda traconego wosku
dokładność wymiarowa
forma wielowarstwowa
forma ceramiczna
Opis:: Results of analysis presented in this paper were based on analysis of casts made especially for this research purpose and related to actual cast – industrial. The evaluation of the dimensional accuracy of casts was made in relation to the pressure of the liquid metal with consideration of the ceramic mould temperature. Ceramic moulds used in these analyses were made from crystalline quartz with an aqueous colloidal silica binder containing polymers (KK), and ethyl silicate (KE).
Źródło:: Archives of Foundry Engineering; 2015, 15, 2 spec.; 27-30
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The Quality of Steel Castings in Terms of Precision Ceramic Mould Structure
Autorzy:: Biernacki, R.
Haratym, R.
Kwapisz, J.
Powiązania:: https://bibliotekanauki.pl/articles/379806.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: lost wax casting
casting surface microgeometry
ceramic mould structure
metoda traconego wosku
mikrogeometria powierzchni
powierzchnia odlewu
forma ceramiczna
Opis:: In the opinion of metrologists, technologists and trybologists surface microgeometry is one of the most important factors affecting the performance characteristics of the machine parts (resistance to wear, sliding and lubricating properties, durability and tightness of joints, fatigue strength, corrosion resistance, etc.). The analysis was made of the ceramic mould elements structure influence on the microgeometry of steel castings surface and their dimensional accuracy. To assess the structure of the ceramic mould previous studies made with usage of computer tomography where used, those studies highlight the ceramic mould structure anisotropy and its properties.
Źródło:: Archives of Foundry Engineering; 2013, 13, 1 spec.; 9-12
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Evaluation of synthetic gypsum recovered via wet flue-gas desulfurization from electric power plants for use in foundries
Autorzy:: Biernacki, R.
Haratym, R.
Kwapisz, J.
Powiązania:: https://bibliotekanauki.pl/articles/380264.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innowacyjne materiały odlewnicze
odsiarczanie spalin
gips syntetyczny
forma gipsowa
forma ceramiczna
innovative foundry materials
flue gas desulfurization (FGD)
waste gypsum (synthetic)
gypsum mould
ceramic mould
Opis:: This article investigates possible use of waste gypsum (synthetic), recovered via flue-gas desulfurization from coal-fired electric power plants, in foundries. Energy sector, which in Eastern Europe is mostly composed from coal-fired electric power plants, is one of the largest producers of sulfur dioxide (SO2). In order to protect the environment and reduce the amount of pollution flue-gas desulfurization (FGD) is used to remove SO2 from exhaust flue gases of fossil-fuel power plants. As a result of this process gypsum waste is produced that can be used in practical applications. Strength and permeability tests have been made and also in-depth analysis of energy consumption of production process to investigate ways of preparing the synthetic gypsum for casting moulds application. This paper also assesses the chemical composition, strength and permeability of moulds made with synthetic gypsum, in comparison with moulds made with traditional GoldStar XL gypsum and with ceramic moulds. Moreover examination of structure of synthetic gypsum, the investigations on derivatograph and calculations of energy consumption during production process of synthetic gypsum in wet flue-gas desulfurization were made. After analysis of gathered data it's possible to conclude that synthetic gypsum can be used as a material for casting mould. There is no significant decrease in key properties, and on the other hand there is many additional benefits including low energy consumption, decreased cost, and decreased environmental impact.
Źródło:: Archives of Foundry Engineering; 2012, 12, 3; 5-8
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Shape Errors, Internal Porosity, Linear Dimensions Accuracy and Allowances for the Machining of Castings Made in the Replicast CS Process
Autorzy:: Haratym, R.
Sieczka, M.
Biernacki, R.
Kwapisz, J.
Powiązania:: https://bibliotekanauki.pl/articles/382962.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Replicast CS process
shape errors
dimensional accuracy
proces Replicast CS
błędy kształtu
dokładność wymiarowa
Opis:: This research presents comprehensive assessment of the precision castings quality made in the Replicast CS process. The evaluation was made based on quality of the surface layer, shape errors and the accuracy of the linear dimensions. Studies were carried out on the modern equipment, among other things a Zeiss Calypso measuring machine and profilometer were used. Obtained results allowed comparing lost wax process models and Replicast CS process.
Źródło:: Archives of Foundry Engineering; 2014, 14, 3; 25-28
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Evaluation criteria of wax pattern strength tests and their role in forecasting the shape accuracy of wax patterns
Autorzy:: Haratym, R.
Biernacki, R.
Lewiński, J.
Kwapisz, J.
Powiązania:: https://bibliotekanauki.pl/articles/381367.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: pattern strength
lost wax casting
pattern test
sustainability
recycling
wzór wytrzymałościowy
metoda traconego wosku
test wytrzymałościowy
recykling
Opis:: This research paper will present and analyze selected testing of wax patterns - bending strength test, test of resistance to creep and penetration hardness test. Evaluation of these tests will be carried out in terms of the shape accuracy of wax patterns. Additionally, statistical evaluation will be carried out of relationships between selected parameters of previously mentioned tests. Standard bending tests will be statistically evaluated and compared with two other test methods conducted on corresponding patterns. Particular attention will be given to creep resistance, which is a very useful test method for assessing changes in the shape of complex patterns in the function of time and temperature. At the same time an evaluation of hardness tests of wax patterns will be carried out with usage of appropriate samples or by direct examination of the production patterns.
Źródło:: Archives of Foundry Engineering; 2013, 13, 4; 49-52
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Shape Accuracy of Iron Precision Castings in Terms of Ceramic Moulds Physical Properties Anisotropy
Autorzy:: Biernacki, R.
Haratym, R.
Tomasik, J.
Kwapisz, J.
Powiązania:: https://bibliotekanauki.pl/articles/381373.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: ceramic moulds
precision castings
anisotropy
formy ceramiczne
odlewy precyzyjne
anizotropia
Opis:: While analyzing shape accuracy of ferroalloy precision castings in terms of ceramic moulds physical anisotropy, low-alloy steel castings ("cover") and cast iron ("plate") were included. The basic parameters in addition to the product linear shape accuracy are flatness deviations, especially due to the expanded flat surface which is cast plate. For mentioned castings surface micro-geometry analysis was also carried, favoring surface load capacity tp50 for R_max = 50%. Surface load capacity tp50 obtained for the cast cover was compared with machined product, and casting plate surface was compared with wear part of the conveyor belt. The results were referred to anisotropy of ceramic moulds physical properties, which was evaluated by studying ceramic moulds samples in computer tomography equipment Metrotom 800.
Źródło:: Archives of Foundry Engineering; 2014, 14, 1; 5-8
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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