耐火粉-SiO2-MnO2-コロイダルシリカ-粘結剤系酸化防止剤の特性
1983 年 69 巻 14 号 p. 1638-1644
詳細
1983 年 69 巻 14 号 p. 1638-1644
Characteristics of a newly developed oxidation inhibitor composed of a refractory powder-SiO2-MnO2-collodial silica-coking bond have been investigated.
The steel coated with the inhibitor shows an excellent antioxidability as compared with non-coated steel at high temperatures from about 1 000 to 1 250°C.
The inhibitor can be easily applied to the surface of ordinary steel slab by spraying in production line.
The production test also shows that the inhibitor film on the heated slab can be removed completely by subsequent scale breaker and that the steel sheets after hot rolling have a surface without defects.
In addition, a high degree of production yield of the rolled sheets has been obtained because of the minimum scale loss.
Antioxidation effect of the inhibitor has been found to depend on the formation of eutectic material that effectively reduces the oxygen diffusion from atmosphere.
