In November 5, 2016, Shandong, Binzhou, Jinan Qingdao construction robot safety scene commander placed. The day before, in the Shandong section of Binzhou highway construction site, in order to warn the driver Caution!, specifically for several robot security commander. These robot safety personnel are wearing yellow safety clothes and wearing helmets. The proportion is similar to that of real people. The shape is realistic, and a small red flag is used to direct traffic. It is understood that this kind of robot used in traffic command can use solar energy to supply power, and it can keep on duty for 24 hours, saving manpower and material resources. The system structure includes 3D vision system, navigation system, humanoid limb, remote assistance system and so on.

Today, I want to share with you some questions about the anticorrosion construction of high speed guardrail.

The highway guardrail is the main form of semi steel guardrail. It is a continuous structure which is spliced with the corrugated steel guardrail and supported by the main column. Due to the good crashworthiness and energy absorption of the corrugated steel guardrail plate, it is not easy to be crashed, but also can play a good protective role for vehicles and passengers. For facilities with such a major role, we must first ensure its quality, then anticorrosion should be done well, not because it is corroded at that time, when it is urgent, it does not play its real role.

Highway guardrail in long-term outdoor and mountain environment more, humidity, exposed to the weather, all kinds of acid and alkali corrosion type in the rain, in order to solve these problems, the common anticorrosive paint with zinc rich epoxy primer, intermediate coat with epoxy micaceous iron oxide paint, paint using acrylic acid paint, fluorocarbon paint or polysiloxane paint etc..

Zinc rich epoxy primer has all the primer are shielding, isolation effect, can effectively isolate water and oxygen in the air and other corrosive medium and protected substrates react, and the content of zinc rich epoxy zinc rich primer, cathodic protection has excellent anticorrosion, long time delay more homework in the film, corrosion in this environment, zinc rich epoxy primer is appropriate. It is suggested that the coating should be coated two times to increase the thickness of the film to increase the duration of corrosion.

Epoxy micaceous iron oxide paint and primer and topcoat has strong binding force, moisture penetration is low, excellent shielding type protective coating. Epoxy micaceous iron oxide intermediate a coating film thickness is high, supporting the use of excellent anti-corrosion properties, from the point of view, micaceous iron oxide epoxy micaceous iron oxide intermediate containing bridge, lamellar structure and micaceous iron oxide, can be very effective in prolonging the time of corrosion medium reaches the bottom material.

Fluorocarbon paint, acrylic paint, silicone paint and other, has very excellent corrosion resistance, can effectively prevent the atmosphere (especially haze flooded areas alkali corrosion), fluorocarbon paint gloss and color performance, and has good self-cleaning performance, even in nowadays such harsh environment in the long time can keep building surface color, is the current one of the most respected anti-corrosion products, acrylic / polyurethane paint gloss and color performance is also good, but compared with fluorocarbon paint, anti-corrosion period will be shorter than the price, but also reduce the times of fluorocarbon paint, taking into account the economic aspect, the acrylic acid paint is the most widely the outdoor anticorrosion coatings. The performance of polysiloxane varnish is similar to that of fluorocarbon paint, but the price is even higher than that of fluorocarbon paint. This matching is relatively few. Here is not much. If you are interested in understanding, you can consult Kai Lin paint staff http://www.kailin360.com/.