obcinania spływów metalu w torach
English translation: cutting off lips of metal flow, trimming (plastic) flow lips
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| 18:16 Dec 20, 2014 |
| Polish to English translations [PRO] Tech/Engineering - Engineering (general) | |||||||
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|  Selected response from: Polangmar Poland Local time: 23:32 | ||||||
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| Summary of answers provided | ||||
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| 4 | trimming / cutting off lips/slivers of metal flow in rail(head)s |
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| 3 | cutting off metal flows in railheads (rail tracks) |
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| Discussion entries: 2 | |
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Answers
2 hrs confidence: 
cutting off metal flows in railheads (rail tracks) Explanation: The metal flows plastically. -------------------------------------------------- Note added at 2 hrs (2014-12-20 20:41:14 GMT) -------------------------------------------------- 3D FINITE ELEMENT INVESTIGATION ON THE PLASTIC FLOWS OF RAILHEADS. CORRELATION WITH MICROSTUCTURAL OBSERVATIONS In this work, a three-dimensional elasto-plastic finite element model is used to simulate the rail mechanical response to the action of a rolling wheel. Plastic flows in the near-surface layer are computed as a function of the traction coefficient. The depth and the distortion of the plastically deformed layer is analysed versus this parameter and correlated qualitatively to the microstructural observations of plastic flows in real railheads and existing theoretical study. The quantitative deviations of the numerical results with reality are discussed in terms of the presence of a solid third body layer, neglected in the simulations. http://laurent.baillet.voila.net/conf_cm_2003_3dfinite.pdf cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc The development and growth of plastic flow in the rail head is investigated on the IIT – GMEMD Wheel Rail Simulation Facility http://www.maneyonline.com/doi/abs/10.1179/cmq.1982.21.1.59 cccccccccccccccccccccccccccccccccccccccccccc 2 is produced, which slopes downward toward the extreme end edge I4 and inner edge ll of the rail head 8, and the rail metal flows over the end edge http://www.google.com/patents/US2075842 cccccccccccccccccccccccccccccccccc do not always produce a split head, but the surface wearing away the metal flows laterally from the bearing surface, without splitting the rail head. https://books.google.com/books?id=yThLAAAAMAAJ&pg=PA65&lpg=P... cccccccccccccccccccccccccccc This displacement is greater with the round topped rail,where the metal flows in ... as shown by the splitting of tires and of rail heads, https://books.google.com/books?id=3DhCAQAAMAAJ&pg=PA194&lpg=... cccccccccccccccccccccccccccccc -------------------------------------------------- Note added at 3 hrs (2014-12-20 21:31:19 GMT) -------------------------------------------------- with requirements other than the abrasion and metal flows of a rail head part for various kinds of industrial running rails such as a crane rail. http://www.sumobrain.com/patents/jp/Method-device-inspecting... ccccccccccccccccccccccccccccccccccccc A Guide to Insulated Rail Joints Schematic Diagram of Limit Dimension of Metal Flow cccccccccccccccccccccccccccccccccccccccc -------------------------------------------------- Note added at 3 hrs (2014-12-20 22:00:06 GMT) -------------------------------------------------- examples of metal flows in plural Discontinuities, formed due to lapping of metal flows during crystallization. Using independently developed numerical analysis technology to simulate the behavior of metal flows during extrusion enables us to achieve optimal die generally, in a metallic article subject to plastic deformation, ... formed by the flow of the metallogrpllic structure,i.e. by formation of metal flows. http://www.google.com/patents/CA2068999A1?cl=en Flow stresses to divide the characteristics of metal flows. http://www.fem.unicamp.br/~sergio1/pos-graduacao/im465/artig... The data of metal flows and forming load in the whole process were acquired. http://en.cnki.com.cn/Article_en/CJFDTOTAL-DYJE201303019.htm The calculations of metal flows are especially hindered by the fact that in a great majority of industrial applications these flows are non-stationary, http://onlinelibrary.wiley.com/doi/10.1002/gamm.200790003/pd... ccccccccccccccccccccccccc The principal factors affecting metal flows are (i) the casting speed (turbulence increases as Vc increases), (ii) the immersion depth of the SEN (turbulence https://books.google.com/books?id=1p69Wl9rXo4C&pg=PA459&lpg=... cccccccccccccccccccccccccccccccc Both particulate metal flows are of the same magnitude, but are about three times lower than the particulate metal flows through the Belgian coastal zone https://books.google.com/books?id=kpXd5QreDQcC&pg=PA106&lpg=... |
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2 hrs confidence:
trimming / cutting off lips/slivers of metal flow in rail(head)s Explanation: Another rail wear phenomenon is the formation of metal flow. The wheel/rail interaction causes the rail and steel surfaces to deform at the point of contact due to the concentrated load. This contact pressure is extreme to the point where the stress is greater than the yield point of the rail steel, which causes plastic deformation of the surrounding surface steel. This action leads to metal flow accumulation on the surface edges of the rail head. Metal flow may collect at the gauge corner of rail in tangent track, where the wheel is seldom in contact with the rail gauge corner or face. Metal flow collection also occurs on the field side of the inside rails in curves, where the rail head metal flow migrates toward the field side and accumulates as a pronounced lip. Slivers of metal flow have been known to eventually wear through completely, forming a long slender metal strip that drops off the rail, generally at the base of the gauge side rail head due to full depth rail gauge face wear. This condition is far less prevalent in transit track than it is on freight railroads, but, as rail ages, the possibility of metal flow grows and this is with the lightest of vehicles. http://tinyurl.com/m4zwzeq A tremendous amount of weight is also acting upon the top of the railhead. This weight, coupled with massive kinetic energy of our train traveling at fifty miles per hour, is literally forcing the steel to move away from the inside edge of the rail. Granted this is taken place at the molecular level, but over time, and with an influx of passing trains, this can be visually seen. This is known as metal flow and can be seen on both rolling stock and locomotive wheels, and on the railhead itself. http://cprr.org/Museum/Rail_Wear_Johnson/index.html -------------------------------------------------- Note added at 2 hrs (2014-12-20 21:15:07 GMT) -------------------------------------------------- ...metal flow having created big lips can also be... ...face wear on the high rail and lips (metal flow) on the low rail. ...as evidenced by the rolled lips on the rail head... http://tinyurl.com/q3kllet -------------------------------------------------- Note added at 3 hrs (2014-12-20 21:30:06 GMT) -------------------------------------------------- Also plastic flow takes place due to the weight of the train, which creates some kind of lips at the edges of the head. http://tinyurl.com/plo7vvr -------------------------------------------------- Note added at 3 hrs (2014-12-20 21:34:45 GMT) -------------------------------------------------- Zamiast "lips of metal flow" można dać krócej: metal flow lips. Fatigue damage in rails and rail welds under high axle load Crack initiation from residual shear drag or flow lips. http://tinyurl.com/m4w3m6d -------------------------------------------------- Note added at 3 hrs (2014-12-20 21:43:25 GMT) -------------------------------------------------- Some rails may exhibit plastic flow lips, which... There is no specific requirement with respect to the inspection of flow lips, but grinding of flow lips is mentioned in... http://tinyurl.com/n9fa7kz http://tinyurl.com/pe8avqk grinding of flow lips = zeszlifowywanie spływów [czyli inna metoda, obok obcinania, na usuwanie spływów - zapewne gdy nie są zbyt duże (te większe lepiej obcinać] -------------------------------------------------- Note added at 23 hrs (2014-12-21 18:04:16 GMT) -------------------------------------------------- Dodam, że i w medycynie "lips" to nie tylko wargi, ale też wyrośla/narośla kostne, czyli osteofity (można by je nazwać "spływami kostnymi" - nb. określa się je też jako "wyciągnięcia/zaostrzenia kostne"). Tu więcej: www.proz.com/kudoz/5486935 [zob. mój komentarz pod "References"] + http://tinyurl.com/maw247p To oczywiście ma tylko pośredni związek z tematem pytania - chodzi mi o to, żeby się nie "bać" tego, że najbardziej znanym znaczeniem słowa "lips" są "wargi". Jest to również termin specjalistyczny używany w wielu dziedzinach - są też na przykład "lip seals" (to akurat ma dosłowny polski odpowiednik jako "uszczelki wargowe"). -------------------------------------------------- Note added at 1 day57 mins (2014-12-21 19:13:02 GMT) -------------------------------------------------- W takim razie jeszcze kilka tekstów w celu uśmierzenia tych obaw.:-) 9) usuwanie tworzących się spływów stali na górnej powierzchni główki szyn przez spiłowanie ich pilnikiem lub zeszlifowanie (bez fazowania krawędzi) http://tinyurl.com/mbgt897 ...przyczyną odchyleń od dopuszczalnej szerokości toru [gauge width] jest rozpłaszczenie główki szyny, połączone ze spływem metalu na boki... Usuwanie spływów poprzez szlifowanie... ...usuwanie spływów z główek szyn i na złączach szyn... http://tinyurl.com/l5595ru Corrective grinding is the original application of grinding, the removal of more or less severe rail surface defects. Severe corrugation (sometimes exceeding half a millimetre), plastic deformation of the railhead (e.g. lips limiting the gauge width [szerokość toru]) or deeper fatigue cracks (mostly more than one millimetre deep) are typical examples for corrective grinding interventions. http://tinyurl.com/owhglrt By means of profile grinding, flattened rail heads are reprofiled and gauge corner lips removed... ...to bevel the inside lips of the rail heads, making them virtually identical... http://tinyurl.com/q7av3yo Jak widać z powyższego, spływy metalu/stali usuwa się głównie przez ich zeszlifowywanie, dlatego tak trudno jest znaleźć całą frazę z obcinaniem spływów. |
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