| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: metal strip is passed through melting bath which contains the following components, wt %: aluminium 2 - 8, magnesium 0 - 5, alloying elements - up to 0.3, and zinc and inevitable impurities are the rest; at that, the above bath is maintained at the temperature within 350 to 750C. Strip with applied coating is blown by means of nozzles feeding the gas to both sides of the strip; after that, coating is cooled down till its complete hardening; at that, the above cooling is performed at the temperature of less than 15C/s, starting from the temperature at blowing outlet and before the beginning of hardening; after that, at the speed which exceeds or is equal to 15C/s, between the beginning and the end of its hardening process. ^ EFFECT: invention allows manufacturing metal strip with corrosion-resistant coating with reduced crimps for Wa0,8 and improved quality of the surface. ^ 12 cl, 1 tbl |
