magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo
Uroš Simonič (Author), Tomaž Pepelnjak (Mentor), Lidija Slemenik Perše (Co-mentor)

Abstract

V magistrskem delu je predstavljeno hlajenje orodja za injekcijsko brizganje izdelka iz polifenilen sulfida. Primerjali smo preprosto izvedbo hlajenja obravnavanega predela gravure z ravnimi izvrtinami na neenakomerni razdalji od gravure ter konformno izvedbo hlajenja, kjer hladilni kanali sledijo obliki gravure na enakomerni razdalji. Učinkovitost obeh metod smo primerjali z merjenjem temperature orodja po koncu brizga. Hlajenje orodja smo obravnavali tudi s teoretičnega vidika s preračunom toplotne bilance orodja ter simulacijo hlajenja prereza stene izdelka pri različnih temperaturah orodja. Z metodo diferenčne dinamične kalorimetrije, smo na podlagi entalpij taljenja kristalne strukture določili stopnje kristalizacije vzorcev, izdelanih pri različnih pogojih hlajenja.

Keywords

magistrske naloge;injekcijsko brizganje;hlajenje orodja;konformni hladilni kanali;polifenilen sulfid;diferenčna dinamična kalorimetrija;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [U. Simonič]
UDC: 678.027.74:621.56/.59(043.2)
COBISS: 78570755 Link will open in a new window
Views: 623
Downloads: 102
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Other data

Secondary language: English
Secondary title: Comparison of classical and conformal cooling of molding tool for thermoplasts
Secondary abstract: In the following master's thesis, we discussed cooling of the mould for injection molding of a part made from polyphenylene sulfide. We compared simple cooling channels design with straight drilled holes at an uneven distance from the mould core and conformal cooling design, where the cooling channels follow the shape of the mould core at the almost uniform distance. The effectiveness of both cooling methods was compared by measuring the core temperature at the end of injection cycle. Mould cooling was also considered from a theoretical point of view by calculating the heat balance of the mould and simulating the cooling of the cross section of molded part's wall at the different mould temperatures. Using differential dynamic calorimetry, we determined the degree of crystallization of samples produced under different cooling conditions based on the melting enthalpies of the crystal structures.
Secondary keywords: master thesis;injection moulding;mould cooling;conformal cooling;polyphenylene sulfide;differential dynamic calorimetry;
Type (COBISS): Master's thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. Ljubljana, Fak. za strojništvo
Pages: XXIV, 82 str., [3] str. pril.
ID: 13363283
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