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1
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Przegląd Mechaniczny
2000 nr 1 10-15
EN The present state of heat treatment and anticipated directions of its development. The following proplems are discussed; heat treated materials, evolution of heating methods, evolution of the treatment process, minimizing energy consumption, proecological character of the process, automatization and[...]
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80%
Machine Dynamics Research
EN The present paper deals with analyzing the influence of mechanical parameters of quenched and tempered X20Cr13 Stainless Steel on the LCF properties. Specimens were heated to 1000°C, kept in this temperature for 45 minutes and subsequently quenched in oil to room temperature, then heated to 550°C, 6[...]
3
80%
Archiwum Odlewnictwa
2006 R. 6, nr 18/2 141--146
PL Przedstawiono prace nad uruchomieniem produkcji żeliwa sferoidalnego do pracy w temperaturze - 20°C do 40°C. Opracowano technologię produkcji żeliwa EN-GJS-350-22-LT i 400-18-LT. Uruchomiono piec do obróbki cieplnej współpracując z firmą C.C&T. Wykonano próbne odlewy i obróbkę cieplną. Wykonano seri[...]
EN The works on the putting into industrial practice the ductile iron for application in low temperatures (-20°C to - 40°C) has been presented. The technology of manufacturing the EN-GJS-350-22-LT iron and the EN-GJS-400-18-LT iron has been worked out. Cooperating with C.C.& T firm, the annealing furna[...]
4
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Materials Science Poland
2009 Vol. 27, No. 3 919--926
EN Structural characteristics and thermal behaviour of the conventionally solidified Al-Cu-Fe alloys with nominal compositions of Al70Cu20Fe10, Al65Cu20Fe15 and Al63Cu25Fe12 were investigated by X-ray diffraction, scanning electron microscopy, and differential thermal analysis techniques. Results show [...]
5
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Modelowanie Inżynierskie
2012 T. 13, nr 44 159-169
PL Obiektem badań był wielkogabarytowy, monolityczny wał korbowy po operacjach obróbki cieplej i wstępnej obróbki mechanicznej. Cykl pomiarowy realizowany był elektrostykową sondą radiową przez program zainstalowany na specjalizowanej tokarko-frezarce.Na podstaw wyników pomiarów i wg PN -EN ISO 1101 ok[...]
EN The test object was a large-size monolithic crankshaft after heat treatment and pre-machining operations. The measuring cycle was carried out by means of radio-touch probe using a program on a specialized turning lathe machine. Based on the results of measurements and PN-EN ISO1101specifiedthatdevia[...]
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Physicochemical Problems of Mineral Processing
EN Heat treatment of an Egyptian natural diatomite was performed at different temperatures (600, 900, 1000, 1100, and 1200C). The samples were heated from room temperature 23۫C to the appointed temperature at a rate of 20C/ min, and kept at that temperature for 5 hour. The heat treated samples were exa[...]
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Rudy i Metale Nieżelazne
2011 R. 56, nr 12 776-782
PL Ultralekkie stopy magnezowo?litowe ze względu na dodatek litu, który jako jedyny obniża masę magnezu, idealnie wpisują się w tendencję obniżania masy wyrobów. W zależności od zawartości dodatku stopowego zmieniają się właściwości wsadu przeznaczonego do kształtowania, a przede wszystkim podatność do[...]
EN Ultra-light MgLi alloys are great choice if it comes to decreasing product weight. Lithium is the only element with such a splendid ability to decrease magnesium alloys weight. Depending of contend of Lithium in alloy its properties changes, especially its sensitivity to plastic deformation. The sub[...]
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Logistyka
EN The thermic welding of rails is carried out in the following sequence: a mould is placed on the rails to be joined; a crucible is mounted on a special bracket; a portion of thermite is charged; the rail ends are pre-heated and thermite is ignited by a special ignition primer. On Latvian Railway, the[...]
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Archives of Foundry Engineering
EN Because of assecuration of requirements for commercial production of ductile cast iron castings were provided the tests of heat treatment of these castings for achieving the desired strength, hardness and ductility. High-strength cast iron can be assured by heat treatment - isothermal refinement or [...]
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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: The goal of this work was to investigate the influence of chemical composition and isothermal heating in order to determine the change of the mechanical properties of the metallic ribbons by depth sensing indentation technique. Design/methodology/approach: The amorphous metallic ribbons wer[...]
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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: The purpose of the research discussed in this paper was to identify the physical processes that take place when a focused laser beam acts on a metal matrix composites reinforced with silicon carbide particles (AlSi alloy/SiCp). Design/methodology/approach: Based on theoretical models, an an[...]
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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: This work presents the investigation results of laser remelting and alloying especially the laser parameters and its influence on the structure and properties of the surface of the 32CrMoV12-28 hot work steel, using the high power diode laser (HPDL). In this paper there are presented the in[...]
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Optica Applicata
EN The paper presents results of surface condition examinations of martensitic X39Cr13 steel subject to heat and surface treatment (plasma nitriding). The heat treatment consisted of compressed nitrogen quenching from 1050 °C (1323 K) and two-hours tempering at 300 °C (573 K) and 620 °C (893 K) for spe[...]
14
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Inżynieria Powierzchni
2008 nr 2 57-61
PL W artykule zaprezentowano piece atmosferowe do obróbki cieplnej i cieplno-chemicznej produkowane przez Instytut Mechaniki Precyzyjnej. Piece są jednymi z szeregu pieców produkowanych dla potrzeb małych i średnich hartowni usługowych, narzędziowni oraz małych i średnich zakładów produkcyjnych. Nowocz[...]
EN The following paper presents atmosferic furnaces for heat and thermo-chemical treatment, which are manufactured in the Institute of Precision Mechanics (IMP). The furnaces are of the type to operate in small and medium heat-treatment plants, toolmaker's shops and small and medium factories. Modern d[...]
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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: Main aim of this paper is to describe the structure of the MCMgAl12Zn1 magnesium cast alloy as-cast state and after a heat treatment. Design/methodology/approach: The following results concern metallographic examinations, the X-ray qualitative and quantitative microanalysis, X-ray diffracti[...]
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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: The influence of prolonged aging on the precipitation process of the intermetallic phases, carbide and boride in high-temperature Fe-Ni austenitic alloy has been studied. Taking advantage of the LSW theory, at attempt was undertaken to provide a quantitative description of the γ' phase part[...]
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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: The purpose of this research paper is focused on the 55NiCrMoV7, 32CrMoV12-28, X40CrMoV5-1, X38CrMoV5-3 hot work tool steels surface layers improvement properties using HPDL laser. The paper present laser surface technologies, investigation of structure and properties of the hot work tool s[...]
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Zeszyty Naukowe. Mechanika / Politechnika Opolska
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Zeszyty Naukowe. Elektryka / Politechnika Łódzka
2006 z. 108 107-116
EN The paper deals with simulation of continual surface induction hardening of 3D steel bodies that represents, from the physical point of view, a complicated coupled problem. Derived is its basic mathematical model consisting of two partia! differential eąuations with time variable boundary conditions[...]
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Prace Naukowe Instytutu Podstaw Elektrotechniki i Elektrotechnologii Politechniki Wrocławskiej. Konferencje
EN The technology and basic critical parameters of YBa2Cu30x samples have been presented. The acoustic emission (AE) pulses were measured as a function of temperature and in dependence of cooling rate during last stage of material preparation. It was confirmed that the acoustic emission occurs during s[...]
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