Title: Making process of hot galvanized fingerprint-proof plate
Application Number: 200610098400 Application Date: 2006.12.18
Publication Number: 1974836 Publication Date: 2007.06.06
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C23C2/06;C23C2/02;C23C2/40;C23C2/26;C09D5/16;B24C1/00;B05C1/12;B05D3/00;C23F17/00
Applicant(s) Name: Ma Address:
Inventor(s) Name: Yang Xingliang;Liu Jie;Liu Huanlong;Zhang Yifan;Zh
Attorney & Agent: xuhui
Abstract:
    The making process of hot galvanized fingerprint-proof plate includes the following steps: uncoiling, leveling, end cutting, welding, rinsing, annealing, galvanizing, cooling, intermediate looping, smoothing, straightening, roller coating, drying, cooling, outlet looping, edge cutting, oiling and coiling. In the galvanizing step, galvanizing solution with Al in the concentration of 0.17-0.23 wt% and Pb in the concentration not higher than 0.003 % and at the temperature of 455-465 deg.c is used. Compared with electrolytic zinc plated fingerprint-proof plate, the hot galvanized fingerprint-proof plate has the same physical and chemical performance indexes reached except the slightly inferior surface quality, so that the hot galvanized fingerprint-proof plate may be used to replace partial electrolytic zinc plated fingerprint-proof plate.
Time: 19