摘要:
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 .
摘要翻译:本发明涉及一种低V 2 O 5含量甚至无V 2 O 5的瓷瓷釉,具有改善的洗碗机阻力和对各种基材的良好粘附性。 本发明还涉及一种适用于铝,铸铝,铝合金,铝镁合金,铸铝合金,铜的基板的低V 2 O 5含量甚至V 2 O 5的瓷瓷漆 奥氏体不锈钢和低碳钢,具有改善的洗碗机阻力和良好的基材粘附性。 本发明还涉及一种将这种搪瓷涂层应用于基材的方法。 所讨论的瓷釉的组成包括约30%至约50%的SiO 2,约30至约40%的R 2 O,约10至约25%的TiO 2,约0至约5%的RO,约0至约 4%V 2 O 5,约0至约7%M x O y,约0至约4%B 2 O 3,约0至约3%Al 2 O 3,约0至约4%P 2 O 5 ,约0至约1%的MoO 3,约0至约2%的F 2,约0至约4%的ZrO 2,约0至约4%的ZnO,约0至约6%的NO x,其中R 2 O表示 至少一种碱金属氧化物,其中RO代表至少一种碱土金属氧化物,并且其中M x O y表示选自Fe 2 O 3,CuO,MnO,CoO,NiO,Sb 2 O 3中的至少一种氧化物, SnO 2。
摘要:
The present invention relates to glass compositions suitable for porcelain enamel application on any steel quality, and thereby providing a coating free of fish scale defects or any defects generated by hydrogen.
摘要:
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, very good acid resistance and good adherence on various substrates. The invention moreover relates to a transparent low-V 2 O 5 - content and even V 2 O 5 -free porcelain enamel frit for application of enamel coatings with infinite colour range on a substrate made of aluminium, cast aluminium, aluminium alloy, aluminium-magnesium alloy, cast aluminium alloy, copper, austenitic stainless steel and mild steel, presenting improved dish-washer resistance, good acid resistance and good adherence on the substrate. The composition of the porcelain enamel in question comprises about 30 wt- % to about 50 wt-% SiO 2 , about 30 wt-% to about 40 wt-% R 2 O, about 15 wt-% to about 25 wt-% TiO 2 , about 0 wt-% to about 5 wt-% RO, about 0 wt-% to about 4 wt-% V 2 O 5 , about 0.3 wt-% to about 7 wt-% Fe 2 O 3 , about 0 wt-% to about 3 wt-% Sb 2 O 3 , about 0 wt-% to about 3 wt-% SnO 2 , about 0wt-% to about 2wt-% B 2 O 3 , about 0 wt-% to about 3 wt-% AI 2 O 3 , about 0 wt-% to about 4 wt-% P 2 O 5 , about 0 wt-% to about 1 wt-% MoO 3 , about 0 wt-% to about 2 wt-% F 2 , about 0 wt-% to about 4 wt-% ZrO 2 , about 0 wt-% to about 4 wt-% ZnO, about 0 wt-% to about 6 wt-% NO x , R 2 O is a combination of alkaline oxides selected from the group of: Na 2 O 10 - 23 mol%, K 2 O 7 - 20 mol% and Li 2 O 1 - 6.5 mol%, wherein RO represent at least one earth alkali oxide and wherein the molar ratio of (Li 2 O + B 2 O 3 ) to TiO 2 amounts to 0.2 to 0.6.