蒸着亜鉛めっき鋼板のめっき密着性におよぼす低水素濃度雰囲気連続焼鈍条件の影響(気相めっき)(<特集>表面処理)

概要

論文の詳細を見る
As an alternative to the Non Oxidizing Furnace (NOF) method, the subject of a continuous heating process for annealing and surface activation of steel sheets prior to vapor zinc coating was taken up. Studies on a laboratory-scale were made up to find out whether production of vapor zinc coated steel sheets with excellent adhesion was possible in a N_2 atmospheric gas with limited amount of H_2 content using the conventional continuous annealing furnace. As the result, it was found that production of vapor zinc coated steel sheets with superior performance was possible even by the continuous annealing conditions of [700℃×45s annealing→400℃×240s overaging] at base steel temperature just before vapor zinc coating of 150℃ and above, if O_2 concentration was less than 2.5×10^<-3>vol% in the 2vol%H_2-H_2 gas with dew point of -20℃.
社団法人日本鉄鋼協会の論文
1991-07-01