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1
Content available Shot Peening of a Mg-Al-Zn-Mn Alloy Surface
Kottfer D., Mrva P.
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
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2010
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Vol. 1, Nr 1 (1)
21-29
EN
The paper describes the influence of shot peening on Mg-Al-Zn-Mn alloy surface. There are estimates focusing on the roughness of the shot peened surfaces and size of the selected shot peened material - corund. Based on the results of measurements, the evaluation was oriented on the curve of roughness, functionality of surface roughness Ra and the necessary quantity of shot peening material qnR of estimated material depending on the grain size dz.
2
Content available Protection of Light Armours Against Shaped Charge Projectiles
Wiśniewski A.
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
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2010
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Vol. 1, Nr 2 (2)
17-25
EN
The hereby work describes the examples of protection of light fighting vehicles armoured with additional reactive armours. The way of protecting of light fighting vehicles with the use of composite-reactive armours against penetration with HEAT projectiles (with a penetration ability of 300 mm RHA) and against small calibre (up to 14,5 mm) armour-piercing bullets are shown on the example of the BWP-1.Technical parameters of the CERAWA-1 armour and the its assembly on BWP-1 are presented. The hereby work also presents the results of static tests of several variants of reactive-passive panels of light fighting vehicles against PG-7 projectiles' perforation at the angle of 60° and 72° from normal to the cassette surface. Depending on the surface mass of the light reactive-passive armour panels, different levels of damage to the armour witness plate were achieved.
3
Content available Conditions of materials choice in manufacturing of pressure originated details
Muiznieks G., Gerins E.
Acta Mechanica et Automatica
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2008
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Vol. 2, no. 4
75-80
EN
Materials are evolving today faster than at any time in history. In nowadays developing a technique and technology considerably enlarge the exposure of the applicable materials, new materials are created still with much better mechanical and technological properties. Their development and prevalence quickly increase. Today wide use such materials that still recently call by future materials. In the several responsible engineering industry, as well as instrument engineering and other industries do better with “high – performance” composites, new engineering ceramics, high – strength polymers etc., what had previously been done with metals. Choosing of materials is very important in several engineering industries, construction and instrument engineering industries, for example, crash of bench constructions is one of the reasons that the engineer who designed them used wrong materials or did not understand the properties of those used. Therefore for rational utilization materials, we need to know not only their properties, but also need understand factors, witch provides this properties. Therefore we should know how to select materials which best fit the demands of the design – economic and aesthetic demands, as well as demands of strength and durability. Choice of materials of pressure originated details, as also many manufacturing of other important details, which is one of the most actual problems in nowadays. First of all this article shows advantages and disadvantages of the conditions of materials choice of pressure originated details in. The most rational conditions of materials choice, way how to eliminate possibility mistakes, witch can lead down to different difficulties are given for the manufacturing of the definite group of details. There is an example witch describes conditions of materials choice for oil flooded screw compressors. The denotations of different standards of the utilized materials are analyzed in this article. As well as the economic parameters of the various materials in the manufacturing of the oil flooded screw compressors are analyzed. At the end of the article are given possibilities of the improving of materials. We can achieve improving of materials with different materials processing methods, which I had analyzed, for example, using mechanical, thermal, thermal-chemical processing or using different surfaces covering. In nowadays thermal processing method based on metal physic, dislocation theory and changes of metal structure regularity. These processing methods improve physical and mechanical properties of materials.
4
Content available remote Development of ecomaterials and materials technologies
Nowosielski R., Kania A., Spilka M.
Journal of Achievements in Materials and Manufacturing Engineering
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2007
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Vol. 21, nr 1
27-30
EN
Purpose: This paper presents a development of ecomaterials particularly in materials technology. Using this materials make possible minimize the environmental load in a whole "life". The design criteria for ecomaterials include compatibility with humans and the environment in addition to the traditional physical, mechanical and chemical properties. Design/methodology/approach: Using ecomaterials would help the manufacturers as well as consumers in material and product selection in the aim of achieving sustainable development (SD). Findings: The concept of "ecomaterials" shows the necessary directions of materials development what allows protection the environment from resource depletion, global warming, ozone depletion and dioxin contamination, etc. Research limitations/implications: More fundamental research and new ideas are needed in order for these materials (ecomaterials) to receive widespread use in the near future. Practical implications: The most important thing is that all materials and their properties should be reconsidered from the ecomaterials viewpoint. It is necessary to demand materials (products) with less environmental load, improved recyclability and achieved maximum performance with the least material consumption. In order to establish the fundamental design and assessment techniques for ecomaterials, a research projects should be still organized. Originality/value: In the paper ecomaterials as a key conception for materials technology what will help reduce the environmental impact of product produced and consumed and promote the emergence of a high-recycling-rate society.
5
Content available remote Nie ma takiej rury na świecie, której nie można zatkać
Andrzejewski M.
Inżynieria Bezwykopowa
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2007
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nr 4
86-88
6
Content available remote iPlus Insituform ® : rękaw na piątkę
Stawiński P.
Inżynieria Bezwykopowa
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2007
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nr 3
56-57
7
Content available remote Tendencje materiałowe i konstrukcyjne w rozwoju rur tworzywowych
Kuliczkowski A., Kubicka U.
Inżynieria Bezwykopowa
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2003
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nr 3
48-50
EN
The trends in plastic pipes development are presented as well as some new material and structural solutions: The quantity produced and offered plastic pipes is shown along with the demand for them in some European countries. Several chosen new materials, together with their applications are also described, especially in the range of multi - layers pipes.
8
Content available remote High-tech w architekturze i stroju
Widera B.
Architectus
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2001
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Nr 1-2(9-10)
98--106
PL
Niespotykane dotychczas tempo rozwoju technologii oraz środków, związanych z przepływem informacji, odgrywa dominującą rolę. w kształtowaniu wizerunku współczesnego świata i wpływa na proces twórczy w wielu dziedzinach. W nurcie architektury high-tech szczególny nacisk kładzie się na perfekcyjne funkcjonowanie projektowanych obiektów oraz nadanie im ultranowoczesnego wyglądu. Aby ten charakter utrzymać jak najdłużej, autorzy dbają o zapewnienie swym dziełom ponadczaso-wości: Stosują rozwiązania umożliwiające wprowadzanie zmian w obrębie struktury wewnętrznej budynków, a także ich ewentualną rozbudowę. Korzystają z najnowszych zdobyczy nauki i techniki w zakresie materiałów, konstrukcji oraz systemów sterujących. Eksponując szkielet budowli uzyskują wyraziste, ekspresyjne formy, w których są wi-doczne fascynacje osiągnięciami techniki, podbojem kosmosu i rozwojem informatyki. Bardzo ważna jest przy tym ochrona środowiska naturalnego, zgodnie z nadrzędnym celem - szeroko rozumianym dobrem człowieka i zaspokajaniem jego potrzeb1. Do wnętrz przenika światło słoneczne, budynki są wyposażone w systemy wentylacji, ogrzewania i klimatyzacji, dzięki którym, niezależnie od uwarunkowań zewnętrznych, panują w nich optymalne warunki do pracy i wypoczynku. Dużą wagę przywiązuje się także do czytelności układu komunikacyjnego. Architektura high-tech nawiązuje często do obiektów przemysłowych, mimo to cechuje jąswoisty monumentalizm. Taki charakter jest uzyskiwany dzięki odważnemu operowaniu dużą skalą i zaskakująco perfekcyjnemu prezentowaniu form afinmijących technologię. To właśnie owe formy zastępują ornament, który w jego klasycznym rozumieniu byłby tu równie nie na miejscu, jak w obiektach modernistycznych.
EN
Features, typical for high-tech, become visible in many fields of designing. In clothing, similarly as in architecture, we can observe a common tendency to use and express the latest technology. The similarities arise from the same origins. In high-tech these are advanced space technologies. Expressive forms in architecture are obtained by exposing the skeleton of the structure and bold, large-scale designing. In hightech buildings, construction is a kind of manifestation of modern technology possibilities. Technology affirmative forms are used instead of the ornament, in its classical meaning. The highest quality and ultramodern general look are particularly important. In the sphere of attire, the logical character based on ergonomics is emphasized. High-tech works are planned to stay modern and functional during the whole using process. Therefore, the topic of flexibility has been brought up. Architects employ solutions allowing to introduce changes in the inner structure of buildings, as well as eventual extensions. Fashion designers make efforts to adjust clothes to the user's varying needs. That is why the so-called ..intelligent materials" are becoming more and more popular. Not only are they able to recognize those needs, but also these materials can adapt themselves to fulfill that which is expected (e.g. by regulating temperature and moisture on the skin surface). Likewise, many advanced control systems have been introduced into high-tech buildings (e.g. regulating ventilation, air conditioning and heating or stimulating sunlight inflow). Much stress has been put on the protection of natural enviroment, in accordance with the superior goal - the broadly understood benefit of mankind. Between each field of designing, there is a transfer of information and technology. Fashion designers use technical fabrics, so far restricted to industrial use. On the other hand, materials from the textile industry have been introduced into architecture. Synthetic fabrics and the so-called improved traditional materials gain in popularity. Although the authors are most concerned with the futuristic character of architecture and clothing, some creative references to tradition are made.
9
50 lat Wydziału Inżynierii Materiałowej i Ceramiki AGH
Stoch L.
Ceramika Budowlana i Silikaty
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1999
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R. 41, nr 4
8-9
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