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The paper summarizes the results of structure analyses focused on differences in the technologies of manufacturing AZ91-alloy castings. The following technologies were used: A) die casting B) gravity casting into ceramic moulds As to their shape complexity the two castings are similar and are of roughly the same wall thickness. The die casting was selected form the manufacturing process while the...
Tento príspevok je venovaný analýze niektorých chýb vyrábaných odliatkov z cínových bronzov a príčinných súvislostí ich vzniku, v záujme zvýšenia kvality výroby.
Článek se zabývá měřením aktivity kyslíku litiny s kuličkovitým grafitem. Pro měření aktivity kyslíku byly použity kombinované termosondy (TERMOSONDY Kladno TSO-FS), které byly vyvinuty pro měření nízkého obsahu aktivity kyslíku. V rámci experimentů byla sledována aktivita kyslíku před a po modifikaci taveniny litiny. K výpočtu aktivity kyslíku byla použita rovnice ČSAV Ostrava a rovnice uváděná firmou...
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