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Tuotantoprosessi

Regional tempered glass

Theglassisheatedtoclosetothesofteningtemperature,andthenplacedinawindgridwithdifferentcoolingintensitiestocooltheglassunevenly,causingthemainviewingareaandperipheralareastohaveDependingonthestress,theglassissurroundedbythestrongcoldpartofthewindgrid.Thenozzleofthewindgridatthispositionisf4.5mmorlarger.Thewindpressureisadjustedtothewindpressurerequiredforfulltempering,resultinginthesurfacepressureinthisarea.Thestressislargeandthedegreeoftougheningisthesameasthatoffulltoughening.Themainviewingareaof​​theglassisintheweakcoolingzoneofthewindgrid.Thenozzlediameterisaboutmediumandf3.2.Thewindpressureadjustmentisalsomuchloweratabout300mmwatercolumn.ThesurfaceformsasmallerCompressivestress,lowdegreeoftoughening,andlargefragments.

Nykyinen tilanne

Developedcountriesintheworldhaveeliminatedregionaltemperedglass.Nationallawsandregulationsstipulatethatautomotivefrontwindshieldglassmustbelaminatedglass.SinceJuly1990s,automobilefrontwindshieldTheglassstillcoexistswithregionaltemperedglassandinterlayer.

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