Dacromet anti-corrosion treatment process of catenary steel plate for bridge

Abstract

The invention discloses a Dacromet anti-corrosion treatment process for catenary steel plates for a bridge. The Dacromet anti-corrosion treatment process includes the following steps that multiple catenary steel plates for the bridge are stacked and connected through a series connection rod with baffle plates at the bottom in series; the series connection rod is fixedly mounted at the bottom of a rotating device, the series connection rod is obliquely arranged relative to a rotary shaft of the rotating device, and the horizontal distance between the upper end of the series connection rod and the rotary shaft of the rotating device is larger than the horizontal distance between the lower end of the series connection rod and the rotary shaft of the rotating device; the catenary steel plates for the bridge on the series connection rod are soaked in a Dacromet anti-corrosion coating solution, and the series connection rod is rotated so that the catenary steel plates for the bridge can make full contact with the Dacromet anti-corrosion coating solution; the catenary steel plates for the bridge are lifted up and rotated to be drained off; and Dacromet anti-corrosion coatings on the surfaces of the catenary steel plates for the bridge are heated and dried and then taken down from the series connection rod. By the adoption of the Dacromet anti-corrosion treatment process, Dacromet coating anti-corrosion treatment is sufficient, the Dacromet coatings on the surfaces of the catenary steel plates for the bridge are uniform, and working efficiency is high.

Description

technical field [0001] The invention relates to the technical field of an anti-corrosion treatment process for catenary steel plates for bridges, in particular to a Dacromet anti-corrosion treatment process for catenary steel plates for bridges. Background technique [0002] The embedded parts of bridges with reinforced concrete structure are prone to corrosion and damage the concrete structure of the bridge due to long-term exposure to various corrosion-causing factors such as freezing damage, chemical corrosion, steel corrosion, and alkali-aggregate reaction; especially due to humidity The effect of carbon dioxide, temperature and carbon dioxide will cause the carbonization of concrete, and the effect of corrosive media such as oxygen, sulfur dioxide and chlorine will further aggravate the corrosion of bridge embedded parts and the damage of concrete structure. Dacromet, also known as Dacromet rust, high-gram rust, zinc-chromium film, etc., refers to coating the metal subs...

AI Technical Summary

Problems solved by technology

When catenary steel plates for bridges in the prior art are used for Dacromet coating metal anticorrosion treatment, usually the catenary steel plates for bridges are immersed in the Dacromet anticorrosion coating solution one by one, and then taken out and drained piece by piece. The working efficiency of the above-mentioned operation method is low, but it can ensure the uniformity and sufficiency of the Dacromet anti-corrosion coating liquid; It is difficult to fully contact the Dacromet anti-corrosion coating solution with the gap between the catenary steel plates, which will easily lead to insufficient anti-corrosion treatment of the Dacromet coating, and make the Dacromet coating on the surface of the catenary steel plate for bridges uneven