High-pressure Molding of PVB Interlayer Film
The Pre-laminated glass have went through the Preheating and Exhausting Air procedure, but the whole pre-laminated glass still have air inside the laminated glass. In order to finally melt the PVB Interlayer film and exhausting all the air out, the pre-laminated glass should be put into the higher pressure laminating autoclave.
There are three steps:
+Heating
Put the pre-laminated glass vertically on the bracket, make sure the space between the two pre-laminated glass is equal, so each pre-laminated glass will get the same pressure. Make sure the pre-laminated glass not touch the mentl part of the machine, to prevent the part of pre-laminated glass get too high temperature and break out. Close the autoclave and start heating. After the temperature rise up to 50 degree, Increase the pressure inside the autoclave. It’s suggested that the speed of increasing pressure and temperature is :0.06MPA/MIN and 5 degree/min. If the temperatue and pressure is not synchronous, please adust the machine. If temperature is too fast, then stop increasing the temperature untill the pressure catch up, vice versa .
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