| 摘要 |
<p>The present invention relates to a low-V 2 O 5 - content and even V 2 O 5 -free porcelain enamel with improved dish-washer resistance and good adherence on various substrates. The invention moreover relates to a low-V 2 O 5 - content and even V 2 O 5 -free porcelain enamel coating for application on a substrate made of aluminium, cast aluminum, aluminium alloy, aluminium-magnesium alloy, cast aluminium alloy, copper, austenitic stainless steel and mild steel, presenting improved dish-washer resistance and good adherence on the substrate. The invention further relates to a method for application of such enamel coating to a substrate. The composition of the porcelain enamel in question comprises about 30% to about 50% SiO 2 , about 30 to about 40% R 2 O, about 10 to about 25% TiO 2 , about 0 to about 5% RO, about 0 to about 4% V 2 O 5 , about 0 to about 7% M x O y , about 0 to about 4% B 2 O 3 , about 0 to about 3% Al 2 O 3 , about 0 to about 4% P 2 O 5 , about 0 to about 1% MoO 3 , about 0 to about 2% F 2 , about 0 to about 4% ZrO 2 , about 0 to about 4% ZnO, about 0 to about 6% NO x , wherein R 2 O represents at least one alkali oxide, wherein RO represent at least one earth alkali oxide and wherein M x O y represent at least one oxide selected from the group consisting of Fe 2 O 3 , CuO, MnO, CoO, NiO, Sb 2 O 3 , SnO 2 .</p> |
