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Min. Order (MOQ)
8-10 Set(s)
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as applicable
as applicale
Vacuum pressure impregnation is a special process designed to impregnate the motor coils or somecastings that are used in critical applications. Vacuum pressure Impregnation often called the VPI process impregnates the coils or metal castings under vacuum. Impregnation under vacuum preventsadvent of external moisture that may be accumulated in the voids of the coil or may be absorbed ininsulation. Vacuum impregnated coils are free of moisture that result good electrical properties.In case of metal impregnation, vacuum impregnation results good adhesion of the chemical with thesurface. Metal impregnation process that involves impregnation of castings is often accompanied byadditional processes like cleaning of castings jobs, chemical treatment for better adhesion etc. Oftenepoxy is used for porosity sealing of the castings.In a vacuum pressure impregnation plant, there are two tanks, one is the impregnation chamber and theother is the storage tank used to store the varnish/resin. In resin impregnation system, often storagetanks require cold storage of level up to 10 Deg C to 15 Deg C. Alternately a epoxy impregnation systemdemands hot storage, since the curing of epoxy occurs at room temperature. Distinct manufacturersfor epoxy like Alantas (formerly Dr Beck), Huntsman (formerly CIBA), Von Roll, Vantico Ltd. suggestmethods for vacuum pressure impregnation with indication of different processes like vacuum, soaking, maintaining pressure, amount of pressure etc for better results.In a typical vacuum pressure impregnation system for motors, preheated coils are kept in the impregnation tank and vacuum is drawn.
Additional Information:
Payment Terms :
T/T
Packaging Details : Packed with specially designed Pine-wood. Bubble sheet elastic type with fumigation certificate.
Delivery Time : 3-4Months