Kepingan Keluli Bergalvani SGC440
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Lembaran bergalvanimerujuk kepada kepingan keluli dengan lapisan zink pada permukaannya. Galvanizing adalah kaedah ekonomi yang biasa digunakan untuk mengelakkan permukaan kepingan keluli daripada kakisan dan memanjangkan hayat perkhidmatannya. Lapisan zink logam disalut pada permukaan kepingan keluli. Lembaran keluli bersalut zink-ini dipanggil lembaran tergalvani. Ia ialah kaedah anti-karat yang berkesan. Kira-kira separuh daripada pengeluaran zink dunia digunakan dalam proses ini.
Disebabkan kaedah rawatan yang berbeza dalam proses salutan, keadaan permukaan kepingan tergalvani juga berbeza, seperti spangles zink biasa, spangles zink halus, spangles zink rata, tanpa spangles zink, dan permukaan fosfat. Piawaian Jerman juga menetapkan paras permukaan. Lembaran bergalvani harus mempunyai rupa yang baik dan tidak sepatutnya mempunyai kecacatan yang berbahaya kepada penggunaan produk, seperti tiada penyaduran, lubang, retak, buih, ketebalan penyaduran yang berlebihan, calar, kotoran asid kromik, karat putih, dll. Piawaian asing tidak begitu jelas tentang kecacatan penampilan tertentu.
Spesifikasi Lembaran Keluli Tergalvani SGC440
| Ketebalan plat keluli tergelek sejuk | Ketebalan kepingan keluli tergalvani | Memakai plat+Plat rintangan kakisan | Gegelung bergalvani+Gegelung bergalvani | Isipadu ction | Plat keluli tahan karat | Pinggan tebal |
| 0.1mm | 0.1mm | 1.5mm | 0.1mm | 0.1mm | 1.5mm | 18mm |
| 0.2mm | 0.2mm | 2.0mm | 0.2mm | 0.2mm | 2.0mm | 20mm |
| 0.3mm | 0.3mm | 2.5mm | 0.3mm | 0.3mm | 2.5mm | 22mm |
| 0.4mm | 0.4mm | 2.75mm | 0.4mm | 0.4mm | 2.75mm | 25mm |
| 0.5mm | 0.5mm | 3.0mm | 0.5mm | 0.5mm | 3.0mm | 28mm |
| 0.6mm | 0.6mm | 3.5mm | 0.6mm | 0.6mm | 3.5mm | 30mm |
| 0.7mm | 0.7mm | 3.75mm | 0.7mm | 0.7mm | 3.75mm | 32mm |
| 0.8mm | 0.8mm | 4.0mm | 0.8mm | 0.8mm | 4.0mm | 35mm |
| 0.9mm | 0.9mm | 4.5mm | 0.9mm | 0.9mm | 4.5mm | 40mm |
| 1.0mm | 1.0mm | 4.75mm | 1.0mm | 1.0mm | 4.75mm | 42mm |
| 1.2mm | 1.2mm | 5.0mm | 1.2mm | 1.2mm | 5.0mm | 45mm |
| 1.3mm | 1.3mm | 5.5mm | 1.3mm | 1.3mm | 5.5mm | 48mm |
| 1.4mm | 1.4mm | 5.75mm | 1.4mm | 1.4mm | 5.75mm | 50mm |
| 1.5mm | 1.5mm | 6.0mm | 1.5mm | 1.5mm | 6.0mm | 52mm |
| 1.6mm | 1.6mm | 6.5mm | 1.6mm | 1.6mm | 6.5mm | 55mm |
| 1.8mm | 1.8mm | 6.75mm | 1.8mm | 1.8mm | 6.75mm | 58mm |
| 1.9mm | 1.9mm | 7.5mm | 1.9mm | 1.9mm | 7.5mm | 60mm |
| 2.0mm | 2.0mm | 7.75mm | 2.0mm | 2.0mm | 7.75mm | 62mm |
| 2.1mm | 2.1mm | 8.0mm | 2.1mm | 2.1mm | 8.0mm | 65mm |
| 2.2mm | 2.2mm | 8.5mm | 2.2mm | 2.2mm | 8.5mm | 68mm |
| 2.4mm | 2.4mm | 8.75mm | 2.4mm | 2.4mm | 8.75mm | 70mm |
| 2.5mm | 2.5mm | 9.5mm | 2.5mm | 2.5mm | 9.5mm | 72mm |
| 2.6mm | 2.6mm | 9.75mm | 2.6mm | 2.6mm | 9.75mm | 75mm |
| 2.7mm | 2.7mm | 10mm | 2.7mm | 2.7mm | 10mm | 80mm |
| 2.8mm | 2.8mm | 10.5mm | 2.8mm | 2.8mm | 10.5mm | 82mm |
| 3.0mm | 3.0mm | 11.5mm | 3.0mm | 3.0mm | 11.5mm | 85mm |
| 3.2mm | 3.2mm | 11.75mm | 3.2mm | 3.2mm | 11.75mm | 90mm |
| 3.4mm | 3.4mm | 12mm | 3.4mm | 3.4mm | 12mm | 100mm |
| 3.5mm | 3.5mm | 12.5mm | 3.5mm | 3.5mm | 12.5mm | 110mm |
| 3.6mm | 3.6mm | 12.75mm | 3.6mm | 3.6mm | 12.75mm | 120mm |
| 3.8mm | 3.8mm | 13.75mm | 3.8mm | 3.8mm | 13.75mm | 140mm |
| 4.0mm | 4.0mm | 14mm | 4.0mm | 4.0mm | 14mm | 150mm |
| 4.2mm | 4.2mm | 14.5mm | 4.2mm | 4.2mm | 14.5mm | 160mm |
| 4.5mm | 4.5mm | 14.75mm | 4.5mm | 4.5mm | 14.75mm | 170mm |
| 4.6mm | 4.6mm | 15mm | 4.6mm | 4.6mm | 15mm | 180mm |
| 4.8mm | 4.8mm | 15.5mm | 4.8mm | 4.8mm | 15.5mm | 190mm |
| 5.0mm | 5.0mm | 16mm | 5.0mm | 5.0mm | 16mm | 200mm |
