For Wave Solder, Selective Masking and Selective Solder Fixtures
MB Manufacturing’s Glass Inspection Insert is a heat, shock and chemically resistant borosilicate glass containing 80% silica and 13% boric oxide.
It expands very little when heated, so it can withstand great temperature changes without cracking.
The maximum long term operating temperature is 450°C.
Utilizing this insert, cut to the exact dimensions of the PCB, allows the operator to see exactly how the solder flows, if the flow is level, if there are gas pockets and if the walls of the fixture are causing skips.
This should eliminate the scrapping of many first run cards.
Glass Inspection Inserts are invaluable when used intermittently during long production runs for quality control, therefore making them very cost efficient.