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Vpliv spreminjanja reže v dolivni šobi na temperaturo pri injekcijskem brizganju elastomerov
ID Petkovšek, Roman (Author), ID Pepelnjak, Tomaž (Mentor) More about this mentor... This link opens in a new window

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Abstract
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.

Language:Slovenian
Keywords:elastomeri, injekcijsko brizganje, hladni kanali, segrevanje zmesi, simulacije
Work type:Bachelor thesis/paper
Organization:FS - Faculty of Mechanical Engineering
Year:2018
PID:20.500.12556/RUL-105045 This link opens in a new window
Publication date in RUL:23.10.2018
Views:767
Downloads:342
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Secondary language

Language:English
Title:Effect of changing the gap of injection nozzle on temperature incerase in injection molding of elastomers
Abstract:
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.

Keywords:elastomers, injection moulding, cold runner systems, compound heating simulations

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