Corten steel double-sided enamel anti-scale explosion porcelain underglaze
A double-sided, scale-explosion technology, applied in the field of double-sided enamel anti-scale-explosion porcelain base glaze of Cordeng high weathering structural steel, can solve the problems of increasing the probability of scale-explosion, affecting the adhesion effect, affecting the quality of enamel products, etc., to reduce costs, The effect of good anti-scale explosion performance and strong adhesion performance
Active Publication Date: 2018-12-21
JIANGXI KOSEN ENTECH CO LTD
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Problems solved by technology
[0005] Scale explosion defects seriously affect the quality of enamel products. Modern enamel technology shows that the direct cause of scale explosion is hydrogen overflow. Some elements such as Si, P, and S are all elements that can react with hydrogen to form volatile hydroxides. The unfavorable results of hydrogen scale explosion after the formation of enamel, especially the addition of 0.5-1.25% Cr element to Corten steel has brought two obvious adverse effects on enamel
One is to increase the probability of scale explosion, and the other seriously affects the adhesion effect
Method used
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[0017] The present invention is further described below.
[0018] The double-sided anti-scale explosion enamel of Corten steel components mainly refers to its bottom glaze and functional top glaze, which are fired according to the two-enamelling and two-firing process. The components of the enamel bottom glaze and the weight percentage of each component are: Al 2 o 3 3 to 5, SiO 2 55-65%, B 2 o 3 15-20%, Na 2 O+K 2 O+Li 2 O 10-15%, CaF 2 2-5%, ZrO 2 3-6%, CoO+NiO 4-8%, BaMoO 4 +Sb 2 o 3 1-3%, V 2 o 5 1-3%.
[0019] The weight ratio formula of chemical raw materials converted according to the above chemical composition is fully stirred and mixed, melted in a rotary furnace at 1300 ° C, and then quenched;
[0020] Double-sided enamelling and firing process of Corten steel components, the ball-milled glaze slurry, according to different products, adjust the bulk density and adhesion, and carry out dip enamelling or wet powder spraying. The thickness of the po...
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The invention discloses a dual-side enamel fish-scaling resistant ceramic ground glaze for Corten steel. The dual-side enamel fish-scaling resistant ceramic ground glaze mainly refers to a ground glaze and a functional cover glaze and is sintered by a technology of soaking corten steel in glaze slip twice and performing sintering twice; an enamel ground glaze comprises the following components in percentage by weight of 3-5% of Al2O3, 55-65% of SiO2, 15-20% of B2O3, 10-15% of Na2O+K2O+Li2O, 2-5% of CaF2, 3-6% of ZrO2, 4-8% of CoO+NiO, 1-3% of BaMoO4+Sb2O3 and 1-3% of V2O5. The dual-side enamel fish-scaling resistant ceramic ground glaze for the Corten steel provided by the invention has the following characteristics that in the actual application, the cost is reduced, besides, the service life of elements is prolonged after metal surfaces are coated with acid resistance enamel, and more selections are provided for selection of materials of chimney sleeve projects, and the like. The corrosion of heat transmitting elements is notably avoided, and in addition, the dual-side enamel fish-scaling resistant ceramic ground glaze is good in fish scaling resistance, good in sealing performance, and low in surface tension.
Description
technical field [0001] The invention relates to a double-sided enamel anti-scaling and bursting porcelain bottom glaze for Corten high weather-resistant structural steel used for cold rolling or hot rolling, in particular to a Corten steel double-sided enamel anti-scaling and bursting porcelain bottom glaze. Background technique [0002] Corten Steel is high weather-resistant structural steel, which is divided into two categories, Corten A and Corten B, also known as atmospheric corrosion-resistant structural steel. Add a small amount of weather-resistant and sulfur-resistant alloying elements, such as Cu, P, Cr, Ni, etc., to the steel to form a protective layer on the surface of the metal substrate, thereby improving the weather resistance of the steel. Corten steel is currently mainly used in the form of plates, pipes, and components in structural parts that are exposed to the atmosphere for a long time, such as vehicles, containers, and building towers. In addition, cort...
Claims
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IPC IPC(8): C03C8/06C03C8/20C23D5/04
CPCC03C8/06C03C8/20C23D5/04
Inventor 康立华盛伟黄晓放
Owner JIANGXI KOSEN ENTECH CO LTD