Redazionale_IPCM_june2014
5Pagine

CASE STUDY HIGH DEGREE OF CLEANLINESS WITH A DETERGENT AND ULTRASONIC CLEANING PROCESS FOR INTERNAL COMBUSTION ENGINE PISTONS Elevato grado di pulizia con lavaggio a detergente abbinato ad ultrasuoni di pistoni per motori a scoppio Opening picture: Pistons produced by Meteor Piston has extremely complex proles and ovalities. Foto d’apertura: i pistoni prodotti da Meteor Piston presentano proli ed ovalità di estrema complessità. lthough in recent years we have witnessed a gradual relocation of production as well as of the purchase of mechanical components to Asia, excellent businesses are still to be found in Italy, capable of producing high technology components for important market niches without suering from competition from the Asian markets. This is the case of Meteor Piston, a company based in Baranzate (MI) specialising in the production of aluminium alloy pistons for engines used in an extremely wide range of applications since 1952 (Fig. 1). The shell mould cast pistons manufactured by the company are currently mounted on the engines of motorcycles and scooters, two-stroke motocross bikes and ATVs, gardening engine conversion kits and professional chain saws, small agricultural onostante negli ultimi anni abbiamo assistito a una progressiva dislocazione della produzione o dell’acquisto di componenti meccanici nei paesi asiatici, in Italia resistono ancora realtà di eccellenza in grado di produrre componenti ad alta tecnologia per nicchie di mercato importanti senza sorire la concorrenza dei mercati asiatici. È questo il caso di Meteor Piston di Baranzate (MI), specializzata dal 1952 nella produzione di pistoni in lega di alluminio per motori destinati ad una ampissima gamma di applicazioni (g. 1). I pistoni fusi in conchiglia prodotti dall’azienda sono attualmente montati su motori di motocicli e scooter, motocross 2 tempi e ATV, kit di trasformazione motori da giardinaggio e motoseghe professionali, piccoli motori agricoli, compressori, motori di pic-

Alessia Venturi, ipcm ® A traditional kit made of piston, piston ring, and gudgeon pin manufactured by Meteor. The company based in the outskirt of Milan uses last generation C.N.C. machines and working centres. Un classico kit composto da pistone, segmento e spinotto prodotto da Meteor. L’azienda milanese utilizza macchine di lavorazione meccanica a controllo numerico di ultima generazione. engines, compressors, small aircraft engines for both professional and amateur use (paragliders and mini choppers) and outboard motors. Recently, the company has started to produce also formed pistons...

CASE STUDY The robotized multi tank cleaning system using detergents which was designed and manufactured by MEG in San Martino di Lupari (PD, Italy). Pistons immersed in the water–based cleaning tank. After a couple of minutes of sole immersion, the ultrasounds go into action to remove the silicon dust. L’impianto di lavaggio robotizzato multi vasca a detergente progettato e fabbricato da MEG di San Martino di Lupari (PD). Pistoni in immersione nella vasca di lavaggio ad acqua e detergente. Dopo un paio di minuti di semplice immersione, interviene l’azione degli ultrasuoni per rimuovere la...

Alessia Venturi, ipcm ® Silicon powder: a dicult-to-remove contaminant Polvere di silicio: un contaminante ostico “During machining, we use water-based coolant and lubricant “Durante le lavorazioni meccaniche usiamo liquidi lubrorefrigeranti a liquids in very low percentages, because they only help to base acqua in percentuali molto basse perché servono solo per concontrol the operating temperature and not to remove the chips,” trollare la temperatura di esercizio e non l’asportazione del truciolo Dell’Acqua continues. “If we used only natural diamond or PCD – prosegue Dell’Acqua – Infatti,...

CASE STUDY Cleaning process The plant supplied by MEG is a robotised multi-tank system with a motorized accumulation conveyor belt for 5 baskets. In the rst tank, a degreasing operation is carried out, in which, after a couple of minutes immersion, ultrasound is used for about 3 minutes. The next tank provides for a fresh water rinse followed by a rinse with demineralised (Fig. 4) water and a drying stage in the hot air oven. The machine features a demineraliser equipped with columns of activated carbon and resins for the production of demineralised water (Fig. 5) and a buer tank with a...