Low-carbon enameled steel plate and manufacturing method thereof
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A manufacturing method and enamel technology, applied in the field of enamel steel, can solve problems such as unfavorable control of air bubbles, poor resistance to pinhole defects, etc., achieve excellent anti-scaling performance, improve adhesion performance and anti-scaling performance, and have a wide range of applications Effect
Inactive Publication Date: 2015-12-09
TANGSHAN IRON & STEEL GROUP
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Due to the high carbon content in steel, it is not conducive to the control of air bubbles during the enameling process, resulting in poor resistance to pinhole defects in enameled products
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Embodiment 1－7
[0038] Embodiments 1-7: The manufacturing method of the low-carbon enamelled steel plate adopts the following specific process conditions.
[0039] (1) The contents of the chemical components in each example are shown in Table 1, and the balance is Fe and unavoidable impurity elements.
[0040] Table 1: Chemical composition (wt%) of each embodiment
[0041]
[0042] (2) The process parameters of each process are shown in Table 2. According to the composition ratio in Table 1, adopt converter smelting, refining treatment, and then carry out continuous casting; According to the technology in Table 2, the continuous casting slab is hot-rolled, and the heating temperature, finish rolling temperature and coiling temperature of this process are controlled; The hot-rolled steel coil is pickled to remove the scale and then cold-rolled to control the reduction rate of cold rolling; the cold-rolled steel coil is continuously annealed to control the annealing method, annealing temper...
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Abstract
The invention discloses a low-carbon enameled steel plate and a manufacturing method thereof. The low-carbon enameled steel plate comprises, by mass, 0-0.010% of C, 0-0.03% of Si, 0-0.60% of Mn, 0-0.025% of P, 0-0.035% of S, 0-0.050% of Al, 0-0.0080% of N, Fe and inevitable impurity elements. According to the steel plate, the contents of N and S are controlled to be within an appropriate range, the certain content of Al is controlled, a certain amount of C is retained, and the proportion of C to S is controlled; sufficient Ti is added, and an appropriate amount of Cu, Cr, Ni and Mo remain in steel so as to improve the adherence performance and fish-scaling resistance of the steel plate. The steel plate has good fish-scaling resistance, and the adherence between the steel plate and enamel is outstanding. By means of the method, enameled steel with outstanding fish-scaling resistance, adherence performance and forming performance can be manufactured. The enameled steel is applicable to both a two-step enameling process and a one-step enameling process and can be used for the fields of the light industry, bathroom accessories, household appliances, architectural ornaments and the like; the production difficulty of the enameled steel is equivalent to that of conventional ultra-low carbon steel, but the production cost is low.
Description
technical field [0001] The invention relates to an enamelled steel, in particular to a low-carbon enameled steel plate and a manufacturing method thereof. Background technique [0002] Enamel products have the characteristics of good acid and alkali corrosion resistance, long service life, beautiful appearance, and easy cleaning, so they are widely used in various fields of production and life. Enamel products are generally formed by stamping and forming a steel plate to make a base, and then enamel-coating and sintering the surface of the base. Ordinary steel plates often have defects such as scale explosion and poor adhesion during the enamel process, and these defects seriously damage the quality of enamel products. With the popularization and application of enamel products, users have higher and higher requirements for enamel quality. Ordinary steel plates can no longer meet the high-quality requirements of enamel. Only special steel plates for enamel with excellent ena...
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