Dispenser pro davkovani pajeci pasty

[Milan B.]

> Ta pasta, ked zostarne, nielenze stuhne, ale podla mna sa tam moze zmenit ciastocne aj ta chemia, co tam je okrem tej spajky. Taka ta vyse roka stara po pretaveni vyzera inak, nez nova - ma taky akysi krupicovejsi, menej hladky vzhlad. Moj nicim nepodlozeny tip je, ze sa v peci v tej aktivacnej faze ta zmenena chemia nerozpadne a neodsmrdi tak rychlo nez ta povodna, a potom to buble inak nez ma ked je to uz v pretavovacej faze. Mozno kebyze experimentujem s priebehom v peci, tak sa da dosiahnut aj dokonalejsi vysledok, no ale to robit nebudem. Jasne, cin je vzdy len cin, ale niekedy clovek radsej da trocha viac korun za istotu a pohodlie.
Toto som este nasiel:

Potential impacts of using expired solder paste are [University of Bolton]:
* Changed paste rheology. Result: poor print quality
* Loss of solvents. Result: reduced flux activity
* Changed flux formulation. Result: More difficult to clean flux residues
* Solvent loss. Result: reduced tack force and tack time of the paste
* Oxidized solder particles. Result: poor solder flow

-m-