PVB film production and processing

Aprocess and parameters ofproduction folderglassproductsrecommendedHuakaiPVB film:

(1)glasswashing

In order to eliminate thedirt,the dirt on the surface of glass,and greasydirt,should be carefullywashedglass.Glass cleaningmachine usingwatermust beclean processing,according to the strictrequirements is the use ofion softened water.After beingwashed awayin the specialdirtand so on,in order to preventdetergentsolution residueon the glass surface,finallymustrinse clean,in order to avoidadhesioncaused by lowwaste.The finalrinse waterhas a great influence on thebond strengthof laminated glass,especially thecleaningwater salinityinfluence the finalquality ofbondingbetween glass andPVB.Af.After cleaning theglassdryingand kept at room temperaturebefore use.

The production of curvedlaminated glass,glasswashingmust be completedbeforebending.

(2)PVB filmpreparation

Must betreatedshrinkagereasonablycutfilmaccording to theglass specification,marginsize andfilm,filmcompensationbyhot pressing process ofshrinking in size.In the use oflow temperature storagefilm,shrinkageratechargeddepends on thefilm itselfand the filmlayingthe size of the stress.

(3)the technical index andkey operationpiecechamber:

Environmentconditions is the keyof thesandwichglass press.Operatestrictly in accordance with the technicalstandard temperature,humidity and dust freeworkshop,equipped withair conditioning system,air filter,airdehumidification equipment,general qualityrequirementscanreach grade 300000is preferred.Adjustingroomtemperature and humidityshould bebefore laminating,relative humiditycontrol in generalbetween 25%-40%,control temperature between 18-22 ℃.Theroomrequires:exit andentranceare doubledoors;the use ofair conditioning,withfiltered airthe room alwaysat positive pressure;at the entra