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Prenova tehnologije brizganja zaščitne plošče : zaključna naloga Razvojno raziskovalnega programa I. stopnje StrojništvoHafnar, Ana, strojnicaV zaključnem delu je predstavljen prehod z dvognezdnega na štirignezdno orodje za injekcijsko brizganje zaščitne plošče, ki služi kot zaščita hidravličnega ventila pred vdorom umazanije in se ob ... montaži zavrže. Vzrok za menjavo je bila iztrošenost dvognezdnega orodja in hkrati zahteva kupca po znižanju stroškov proizvajanega kosa. Konstrukcija orodja je bila podana in izdelana, naloga pa je zahtevala določitev tehnoloških parametrov brizganja in vpliv posameznega parametra brizganja na kakovost kosa. Poskus smo izvajali na stroju Arburg 350-90-270D, kjer smo na osnovi teorije in teoretičnih izračunov za predpisani material (polietilen) in konstrukcije orodja ter s praktičnim testiranjem določili ustrezne parametre brizganja. Izbrani optimalni parametri brizganja so delno odstopali od teoretičnih izračunov. Največji vpliv sta imela tlak brizganja in sila zapiranja. Rezultati so pokazali, da vsi štirje kosi iz orodja ustrezajo tako mersko kot tudi po ostalih zahtevah kupca. Ker smo na ta način produktivnost povečali za približno 67 %, se bo v naslednjih korakih lahko tudi ustrezno znižala cena izdelka, kar je bila tudi zahteva kupca.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [A. Hafnar], 2020Language - slovenianCOBISS.SI-ID - 28529155
Author
Hafnar, Ana, strojnica
Other authors
Pepelnjak, Tomaž
Topics
diplomske naloge |
polietilen |
injekcijsko brizganje |
štirignezdna orodja |
parametri brizganja |
analiza prototipov |
thesis |
polyethylen |
injection molding |
four cavity injection molds |
injection parameters |
prototype analysis
Library/institution |
City | Acronym | For loan | Other holdings |
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Faculty of Mechanical Engineering, Ljubljana | Ljubljana | FSLJ |
reading room 1 cop.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Hafnar, Ana, strojnica | |
Pepelnjak, Tomaž | 12957 |
Source: Personal bibliographies
and: SICRIS
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