2012年12月18日星期二

New technology for steel the high corrosion coating rust


steel structure engineering before painting rust prevailing traditional methods of mechanical shot blasting and sandblasting, hand electric grinding, stay in the steel surface more than rust, rust nuclear will continue to corrosion caused by iron and steel substrates, even if very clean rust new metal surface area increase, increased absorption of water, the possibility of corrosion caused by the impact of the environmental corrosion medium. In this case, the paint coating often fail to achieve the anti-corrosion of years, even with long-term corrosion paint system construction, rust-proof time will thus be greatly reduced. Therefore, paint anti-corrosion, the key is to no longer exist to continue rusty condition of the metal surface. This article describes the structural steel engineering high corrosion coating process, mainly the main line to the patented technology, National Key New Products - JZ. CXFX-N to turn rust Vajra new material applications based on nearly two years of experience in the engineering application summary, focusing on rust years different methods of steel metal surface rust, paint coating brought before painting process changes the intrinsic quality to improve, extend, and the construction is simple, flexible application, reduce costs, save energy and reduce Pai and other interests. Innovative materials brings the advanced nature of the technology, has great application value.
Turn rust Diamond JZ.CXFX-N About JZ.CXFX-N turn rust Diamond the special function varnish of a thick liquid processing new materials as steel anti-corrosion coating surface before taking effect only for rust has a dual function of rust and rust. Coated on the surface of the corrosion of the steel member can be directly through the brush, wiping, spraying, etc. After 0.5-1 hours at room temperature, the surface of the steel rust is transformed to produce a gray-black rust substance, closely attached to the steel structure (adhesion 1) formation of high corrosion film, as the underlying can effectively improve the quality of the anti-corrosion coating paint. Dense (the film thickness of approximately half of the original thickness of the rust layer is typically a few microns, cured completely after 22 hours), insulated, completely blocked the conditions for further rust formation, and surface roughness, an indoor rust up to one year as paint underlying can significantly improve the the painting rust prevention of long-term, strengthen the capacity of heavy-duty. Good turn rust Diamond JZ.CXFX-N experience supporting the use of various paint system, with binding force, due to its rust completely rust-proof and strong, to extend all kinds of paint system preservative time limit for ordinary Antirust performance is particularly evident in the case of the construction according to specifications can be improved more than 1 times the corrosion cycle. Due to the above performance of the new materials, so that the existing problems can be solved in steel production and processing, and thus has the following construction advantages:
(1), GB8923-88 "before painting steel surface Rust grades and preparation level" standard, even if the D grade rusting steel without shot blasting, sand-blasting, can be directly spray, brush turn rust Diamond JZ.CXFX -N to achieve the purpose of the turn rust rust rust grades equivalent Sa2.5, St3 level. This has brought great convenience to the field construction of large components, construct complex node.

(2), factory production of large, complex steel components, cutting, shot blasting, welding and other processes that take a week or even a half months before entering the paint process, throw a net steel surface secondary corrosion, a direct result of The epoxy primer binding is not strong, bubbling quality defects. The use of the material rust, rust-proof function, you can completely overcome this problem. (3), hot ligation and heavy-duty steel work surface, usually covered with a layer thick-mm level and very dense and hard steel blue oxide (chemical composition Fe3O4), shot blasting sand-blasting is extremely difficult to completely clean. Fe3O4 the naturally occurring form of iron ore, stable, but after contact with air, it will slowly loose red rust oxidation generated (chemical composition of Fe2O3). Turn rust Diamond JZ.CXFX-N oxide coating, anti-rust film steel structure can be completely isolated from the air, the reach of anti-corrosion purposes. (4), fill in the steel construction process coated with rust, the late stage of the maintenance process rust off patent leather, simple clean up oil, grime, brushing the material directly, table dry after 1-2 hours can brushing paint. The material does not damage the paint, the old paint surface binding force after brushing with the new paint better.
(5), JZ.CXFX-N turn rust King Kong use the same paint, construction specification can refer to "steel anti-corrosion coating process standards (508-1996) in paint construction requirements. Due to the viscosity of the material is much smaller than the paint, and only need to steel surface wetting can, therefore, 1 kg of coverage up to 40 square meters, the material consumption is about 1/8 of the paint. (6), JZ.CXFX-N turn rust Vajra non-toxic, odorless, and does not pollute the environment, label applicable to all types of steel, cast iron, ferroalloy, only its corrosion products play a role in non-destructive steel matrix microstructure of steel no injury, Thus, the steel does not affect the mechanical properties (tensile strength, elongation, yield point, cold bending properties, impact toughness).


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