23:38 Oct 11, 2019 |
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English to Polish translations [PRO] Tech/Engineering - Chemistry; Chem Sci/Eng / melt-spun forming of filaments | |||||||
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2 +1 | zmniejszyć średnicę, zawęzić//dysza do zawężania średnicy włókna |
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atenuacja włókien |
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Discussion entries: 7 | |
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zmniejszyć średnicę, zawęzić//dysza do zawężania średnicy włókna Explanation: Attenuation refers to the reduction in diameter. The attenuator is either the nozzle (dysza) or the whole apparatus (urządzenie). ccccc However, after conducting a series of experiments on this spinneret pack design, it was found that the fibers tend to break before it can be attenuated to fine diameter. https://smartech.gatech.edu/bitstream/handle/1853/37276/jun_... -------------------------------------------------- Note added at 3 hrs (2019-10-12 03:28:18 GMT) -------------------------------------------------- ccccccccccccccccc https://aip.scitation.org/na101/home/literatum/publisher/aip... Visualization of fiber attenuation in postdie area during the MB process (left) together with particular velocity profiles in cross sections A and B (right ccccccccccccccccccccccccccccccccccccccccccccccccccccccc n many fiber-forming processes, filamentary material extruded from a die is directed through a processing chamber where, for example, the filamentary material is drawn, oriented and/or reduced in diameter. Such a processing or attenuation chamber is commonly used in spun-bond processes https://patents.google.com/patent/US20030162457 ccccccccccccccccccccccc If this solidification point exactly falls on the starting position of the plateau region for the fiber diameter, it indicates that the initially guessed model geometry length is reasonable. This is because the viscosity becomes infinitely large after solidification and further attenuation is negligible Figure 2. Model prediction of fiber diameter and temperature versus distance from the spinneret (processing temperature ¼ 240C, air velocity ¼ 22 m/s, initial fiber velocity ¼ 0.005 m/s and initial stop point position ¼ 1 mm). The results do not converge correctly when using an initial value of 1 mm for the stop point position in the iteration. In such a case, the fiber attenuation stops outside the nozzle and results in a large fiber diameter. http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.901... |
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Reference: atenuacja włókien Reference information: [0026] Termin "atenuacja włókien wypełniających do włókien" oznacza konwersję segmentu włókien wypełniających w segment większej długości i mniejszej wielkości. - https://isn.page.link/TeBL - page 6 |
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