Zobrazeno 1 - 10
of 58
pro vyhledávání: '"T. Matuła"'
Publikováno v:
Archives of Foundry Engineering, Vol vol. 23, Iss No 1, Pp 103-109 (2023)
Coffee is grown in over 50 countries around the world, and its sale is the largest in the world trade after crude oil. In the case of coffee beans, after consumption remains a solid waste in the form of a waste plant extract. At present, coffee waste
Externí odkaz:
https://doaj.org/article/972a04e3e30b4323944c9cd808eb4d11
Publikováno v:
Metalurgija, Vol 62, Iss 2, Pp 279-281 (2023)
In the paper, results of thermogravimetric study on reaction between lead oxide and lead sulphide, both loose and agglomerated samples. The research results showed that the reaction of lead sulphide with lead oxide is possible at temperatures exceedi
Externí odkaz:
https://doaj.org/article/6803b9b255f042b69114ac07ca07abc7
Autor:
T. Matuła
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 67, Iss No 3, Pp 885-888 (2022)
Many modern processes for the production and casting of metals and their alloys are carried out in protective gas atmospheres, which protect them, for example, from oxygen pollution. This applies, for example, to titanium, magnesium or aluminum alloy
Externí odkaz:
https://doaj.org/article/1704614617da409cb402f68b24e9989d
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 64, Iss No 2, Pp 647-652 (2019)
As part of the presented work, tests were carried out to check the possibility of replacing of conventional reducers used in the lead pyrometallurgical processes by cheaper, but equally effective substitutes. For research of lead oxide reduction, the
Externí odkaz:
https://doaj.org/article/525830ee3e7f41c4bb3b5193c64a670f
Publikováno v:
Metalurgija, Vol 54, Iss 1, Pp 151-153 (2015)
Blister copper smelting in a flash smelting furnace results in generation of slag that contains high amounts of copper, iron and lead. Most commonly, this material is subjected to reduction with coke in an electrical furnace. In the present paper, re
Externí odkaz:
https://doaj.org/article/8d5f28b0f98a433d8f6e76be71393edb
Publikováno v:
Metalurgija, Vol 52, Iss 4, Pp 493-496 (2013)
In the paper, results of the study on a possible utilization of coal-enrichment wastes as alternative reducers for lead smelting from acid-lead accumulator scrap are presented. For the experiments, the following alternative carboniferous reducers wer
Externí odkaz:
https://doaj.org/article/98afff1e5ee9445c97e10a5202dcdf1f
Publikováno v:
Metalurgija, Vol 52, Iss 4, Pp 521-524 (2013)
In the paper, results of a study on the agglomeration process of fine-grained plumbiferous materials, belonging to basic resources for lead recovery, are presented. For the agglomeration tests, a laboratory drum granulator and a balling disc were uti
Externí odkaz:
https://doaj.org/article/ecf6ac073afc457f85f96f340193b792
Publikováno v:
Metalurgija, Vol 51, Iss 3, Pp 321-324 (2012)
The paper presents the research on the influence of melt overheating temperature on crystallization parameters and primary structure of cast AlSi17Cu5Mg (A390.0) alloy overheated to temperature: 820 °C, 880 °C, 940 °C and 1 000 °C. It was found t
Externí odkaz:
https://doaj.org/article/a62ce21e829944b6b4875e83f9340d92
Publikováno v:
Metalurgija, Vol 53, Iss 4, Pp 585-587 (2014)
The investigation results on the reduction of slag from flash smelting furnace and the use of carbon granulates obtained from fine-grained waste materials of both the coal enrichment and coking processes have been presented in the paper. The investig
Externí odkaz:
https://doaj.org/article/ba569dd09b764504a1bae4821cab17d0
Publikováno v:
Metalurgija, Vol 52, Iss 3, Pp 334-336 (2013)
In the present paper, results of wettability studies on the liquid metal – fireproof material – gas phase system using copper and Cu-Ag alloys as well as typical fireproof materials, i.e. aluminium oxide, magnesium oxide and graphite, are present
Externí odkaz:
https://doaj.org/article/08b265ce30b74e7495902ec519ff8e78