Passivation agent for preventing hot dip galvanizing steel strand surface white rust and coating method
A passivation agent and steel strand technology, which is applied in the hot-dip plating process, coating, metal material coating process and other directions, can solve the problem of the anti-white rust passivation treatment of hot-dip galvanized steel strands that is not retrieved. Achieve good promotion value and social benefits, reasonable formula, and the effect of solving white rust on the surface of the coating
Active Publication Date: 2010-08-11
巩义市恒星金属制品有限公司
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After searching the literature, no relevant technologies and reports on the anti-white rust passivation treatment of hot-dip galvanized steel strands were found
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Abstract
The invention relates to a passivator which is capable of preventing generating white rust on the surface of thermal-galvanizing strand and a coating method thereof; the passivator consists of component A, component B and deioned water by the weight proportion of 1:3-5:16, wherein, the component A consists of aqueous acrylic acid epoxy ester resin and deioned water by the weight proportion of 2-3:1; and the component B consists of 4.0-6.0g / L of chromium chloride, 0.6g / L of sulfuric acid, 2.5ml / L of acetic acid and the balance of water. The coating method is characterized in that the strand continuously passes by a compression roller under the traction force of a supporting roller, enters a trough, dips the passivator, is led out by the supporting roller, subsequently enters a drying box and is subsequently coiled on an I-shaped wheel, thus completing the continuous operation process of the online passivation of the strand. The method has simple process, low cost and strong white rust resistance capability; furthermore, the passivator has no pollution to the environment and human body, can be directly applied to the entwisting and stranding production line of the thermal-galvanizing strand, solves the problem that the white rust is generated on the surface of the thermal-galvanizing strand and has excellent generalization value and social benefits.
Description
1. Technical field: The invention relates to a surface anticorrosion technology of a hot-dip galvanized coating in the metal product industry, in particular to a passivator and a coating method for preventing white rust on the surface of a hot-dip galvanized steel strand. 2. Background technology: Hot-dip galvanized lron wire strands are a kind of metal used for steel-cored aluminum stranded wires for overhead high-voltage transmission lines, optical cables, armored cables, wired communication lines, fixed objects, and tethers. products. It is made of multiple hot-dip galvanized steel wires twisted (combined) by a special twister. Hot-dip galvanized coating is currently one of the most effective anti-corrosion coatings on steel surfaces, and its service life in the atmospheric environment can generally reach 15-20 years, so it is used as a protective coating to prevent corrosion of steel products. However, because zinc is a very active metal, the chemical stability of the ...
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IPC IPC(8): C23C22/50C23C2/06
Inventor 苗立贤焦宗保焦新法曲晓峰
Owner 巩义市恒星金属制品有限公司