Building curtain wall steel structure rust removal method

Abstract

The invention discloses a building curtain wall steel structure rust removal method, and belongs to the field of steel structure rust removal. The passivation effect of a rust conversion agent is utilized, iron oxide is converted into a composite film firmly combined with metal, time-consuming grinding and rust removal work is omitted, paint fixing particles are creatively added into anti-corrosion paint to protect a passivation layer and prevent paint from falling off, an anti-corrosion spherical shell is attracted to a steel structure through the attraction effect of a magnet, the passivation layer can be tightly pressed on the steel structure to be prevented from falling off, a traction effect is achieved on the anti-corrosion paint, and large-area cracking and falling of the paint are effectively avoided; oxygen mixed into the paint is absorbed through a solid oxygen absorbent, bubbles are effectively reduced, and therefore the problem of paint bubbling in the later period is solved; and moisture is absorbed through a breathable film, a paint layer and the passivation layer are kept dry, and further rusting is effectively avoided.

Description

technical field [0001] The invention relates to the field of derusting steel structures, in particular to a method for derusting steel structures of building curtain walls. Background technique [0002] Steel structure is a structure composed of steel materials, which is one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of section steel and steel plates, and adopts rust removal and antirust processes such as silanization, pure manganese phosphating, washing and drying, and galvanizing. The components or components are usually connected by welds, bolts or rivets. Because of its light weight and easy construction, it is widely used in large factories, stadiums, super high-rises and other fields. [0003] The steel structure is also used on the building curtain wall. The building curtain wall refers to the non-load-bearing exterior wall enclosure of the building. It is usually ...

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Problems solved by technology

[0006] Aiming at the problems existing in the prior art, the object of the present invention is to provide a kind of derusting method of building curtain wall steel structure, and it utilizes the passivation effect of rust converting agent to convert iron oxide into a composite film firmly combined with metal, saving Eliminate the time-consuming grinding and derusting operations, and creatively add solid paint particles to the anti-corrosion paint to protect the passivation layer and prevent the paint from falling off. It makes the anti-corrosion spherical shell adsorb on the steel structure through the adsorption of magnets, not only can Press the passivation layer tightly on the steel structure to prevent it from falling off, and it has a pulling effect on the anti-corrosion paint, effectively avoiding large-scale cracking and falling off of the paint. It uses a solid oxygen absorber to absorb the oxygen mixed into the paint, effectively reducing The generation of air bubbles, thereby reducing the problem of paint foaming in the later stage, and absorbing water through the breathable film, keeping the paint layer and passivation layer dry, effectively avoiding further corrosion

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