Steel for enamel and production method thereof

Abstract

The invention discloses a steel for enamel, and is characterized by comprising the following chemical elements by mass: not more than 0.020% of C, not more than 0.05% of Si, 0.10-0.50% of Mn, not more than 0.03% of P, 0.003-0.050% of S, 0.001-0.03% of Al, 0.001-0.015% of N, 0.005-0.050% of O, not more than 0.005% of Ca, not more than 0.005% of Mg, not more than 0.10% of Cu, not more than 0.10% of Cr, not more than 0.10% of Ni, not more than 0.10% of Mo, at least one of 0.0005-0.003% of B, not more than 0.01% of Nb, not more than 0.02% of V, and 0.001-0.05% of Ti, and the balance of Fe and other inevitable impurities, wherein N(%)*Ti(%) is not more than 3*10<-4>. Correspondingly, the invention further discloses a production method of the steel for enamel. The steel for enamel has excellent comprehensive performance.

Description

technical field

[0001] The invention relates to steel grades and a manufacturing method thereof, in particular to a steel for enamelling and a manufacturing method thereof. Background technique

[0002] One-time enamel process is a kind of enamelling process in which the top glaze is directly applied without applying the bottom glaze, and the top glaze is fired on the steel plate. The difference between the one-time enameling process and the two-time enamelling process is that the two-time enameling process first needs to enamel a layer of primer on the steel plate and other bases, and then apply a layer of glaze on the bottom glaze. And the binding force between the bottom glaze and the top glaze is good, and it is beneficial to improve the anti-scale explosion performance. Therefore, comparatively speaking, one-time enamelling has higher requirements on the adhesion between the steel plate base and the porcelain layer, the scale resistance, and the prevention of defects s...

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