Low melting enamel frits

Details Low melting enamel frits Low melting enamel frits

1983-02-04

1985-01-15

Williams, Howard S.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 25, 501 79, C03C 702, C03C 706

Patent

active

044939000

ABSTRACT:
A low melting enamel frit which comprises 31 to 39 wt % of SiO.sub.2, 13 to 21 wt % of B.sub.2 O.sub.3, 14 to 21 wt % of Na.sub.2 O, 1 to 5 wt % of K.sub.2 O, 5 to 20 wt % of ZnO, 2 to 10 wt % of F.sub.2 and 2 to 9 wt % of at least one of Al.sub.2 O.sub.3, ZrO.sub.2 and TiO.sub.2 provided that at least one intermediate oxide is present in an amount of 5 wt % in a maximum. The frit is capable of firing at temperatures lower than A.sub.1 transformation temperature of steel, say, 723.degree. C.

REFERENCES:
patent: 3396044 (1968-08-01), Satterfield
patent: 4312951 (1982-01-01), Eppler
patent: 4315778 (1982-02-01), Ueno et al.
patent: 4361654 (1982-11-01), Ohmura et al.

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