The presence of defects on sealing surfaces, such as porosity, can cause leaks that compromise the correct functioning of the component and jeopardize the life of finished products: the presence of defects on those surfaces may impede the function of the gasket between the mating surfaces by leaving channels free for the passage of fluids. Checking for the presence of surface defects on cast flat couplings is crucial as it allows to analyze the state of the surfaces on which the sealing gaskets will be applied between different components.
On appelle couramment batterie de voiture le boîtier dans lequel les cellules de la batterie sont disposées. Selon le constructeur du véhicule, les cellules de la batterie peuvent être logées soit dans un boîtier plus petit (le module) ou directement dans le bloc batterie. Les modules sont en tout cas intégrés au bloc batterie.
Le moteur électrique connaît actuellement une demande générale croissante sans précédents. Cette diffusion rapide à grande échelle dans l’industrie automobile génère de fortes attentes pour la fiabilité des composants de la part des constructeurs mais aussi des utilisateurs, impliquant des conditions de qualité et de contrôle de processus tout le long de la chaîne de production.
Placing and maintaining a process under control is the key factor for any production. This is even more true for the very demanding semiconductor and semiconductor like manufacturing processes, which can be considered some of the most complex ones, that requires the control of an increasing number of parameters. Not to forget that semiconductor is a brittle and hard material that requires dedicated machine tools to slice, lap, thin, get intelligent and finally cut the die.
Maintenance people must be committed not only to keep the equipment operating by restoring it again after a failure but also to attain maximum uptime, performance and quality results and consequently, reducing costs. These key factors depends also on how the maintenance is performed.
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