20.500.12556/RUL-105045 Vpliv spreminjanja reže v dolivni šobi na temperaturo pri injekcijskem brizganju elastomerov Effect of changing the gap of injection nozzle on temperature incerase in injection molding of elastomers V diplomskem delu smo preizkusili vpliv reže na segrevanje brizgane zmesi v šobi hladnega kanala z zapornimi iglami. Zmes smo želeli segreti zaradi krajših časov vulkanizacije in lažjega zalivanja izdelka. S programom Sigmasoft smo izdelali parametrično simulacijo v kateri smo preverili vpliv različne geometrije, parametrov brizganja ter dve različni zmesi. Sledil je še realen preizkus podobne tehnologije brizganja z dvojno injekcijo. V simulaciji in v realnem preizkusu so bile uporabljene iste zmesi, katerih točne lastnosti imamo pomerjene. Ugotovili smo, da se z našo tehnologijo približamo temperaturnim spremembam, ki jih dosegamo tudi z dvojno injekcijo ampak za to porabimo več tlaka. In final thesis we tested the effect of the gap on heating the injected compound in the cold runner nozzle. The compound is to be heated to shorten the cycle times and facilitate filling of the product. With the program Sigmasoft we created a parametric simulation in which we examined the influence of different geometry, injection parameters and two different compounds. After the simulation followed a realistic test of the similar technology. We tested injection unit with double injections. In the simulation and the real test the same compounds were used, of which accurate properties have been measured. We found out that out concept approaches temperature increases which are achieved with double injection, but with larger pressure input. elastomeri injekcijsko brizganje hladni kanali segrevanje zmesi simulacije elastomers injection moulding cold runner systems compound heating simulations true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2018-10-23 10:32:27 2018-10-23 10:32:31 2023-11-08 13:00:41 0000-00-00 00:00:00 2018 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 209915 2779.pdf 2779.pdf 1 9F09BE62C17AB838EB6FB36904F008DF 0b7a0594036a331689a8a3bad8af28f725716ea60014de6633ff54ccdd6456df 180dd9a4-a1b6-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=115605 Fakulteta za strojništvo 0 0 0