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20:08 Jul 23, 2012 |
English to Serbian translations [PRO] Tech/Engineering - Metallurgy / Casting / izrada nakita od paladiju | |||||||
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| Selected response from: Mira Stepanovic Serbia Local time: 19:32 | ||||||
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Summary of answers provided | ||||
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4 | šel-molding postupak/proces (izrada kalupa u školjkama) |
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šel-molding postupak/proces (izrada kalupa u školjkama) Explanation: http://en.wikipedia.org/wiki/Shell_molding Shell molding, also known as shell-mold casting,[1] is an expendable mold casting process that uses a resin covered sand to form the mold. Tehnologija livenja - predavanja: http://www.scribd.com/doc/46688289/Projektovanje-Tehnologije... - šel-molding postupak ... c) rad po šel-molding (shell molding) procesu - izrada kalupa u školjkama. Glavna karakteristika procesa je u tome što se kalupi ne rade u klasičnom pesku već u čistom kvarcnom pesku sa dodatkom specijalnih smola. Kalup se na specijalnim mašinama formira u obliku "školjke" - ljuske. Priprema ovog procesa može se preporučiti za odlivke velikih serija, sa tankim zidovima i vrlo preciznim dimenzijama. Primer: kola za pumpe, za cilindre motora hlađene vazduhom (Fiat 500). Širu primenu ovaj metod je našao kod obojenihmetala. a za temper liv kod fitinga. Isto tako ovaj metod našao je široku primenu u izradi jezgara; -------------------------------------------------- Note added at 1 hr (2012-07-23 21:15:20 GMT) -------------------------------------------------- Još jedna mogućnost: http://tehobr.blog.rs/blog/tehobr/obrada-livenjem/2011/10/03... Precizno livenje i livenje u školjkastim kalupima |
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