| 摘要 |
An enamel frit which provides improved bonding at stoving temperatures below 800 DEG C. after the frit has been stoved on unalloyed steel which is capable of being enamelled, the frit containing 1 to 6% by weight, based on the total quantity of the frit, of bonding oxides and the other constituents so chosen that the following equation is fulfilled: SIGMA monovalent atoms + 2 SIGMA divalent atoms - SIGMA fluorine atoms - SIGMA pentavalent atoms = SIGMA trivalent atoms = SIGMA tetravalent atoms, in which the deviation from the ratio 1:1:1 is at most +/-8% for each of the monovalent atoms, divalent atoms and pentavalent atoms. The enamel frits according to the invention being useful for electrostatic powder application.
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