How can the highway guardrail be sprayed with anti-corrosion treatment?
发布时间 :
2023-03-02
The anti-corrosion treatment of highway guardrails adopts electrostatic spraying instead of traditional dipping treatment. The full name of electrostatic spraying is electrostatic powder spraying.
The anti-corrosion treatment of highway guardrails adopts electrostatic spraying instead of traditional dipping treatment. The full name of electrostatic spraying is electrostatic powder spraying. Even if the powder is evenly attached to the guardrail under the action of static electricity, no diluent is needed, more environmentally friendly, harmless to the human body, and no waste. Then, the powder is cured in a high-temperature environment, realizing the seamless combination with plastic sprayed metal objects, and the anti-corrosion ability is higher than that of spraying.
Before spraying treatment, we need to decontaminate the highway guardrail. Only when the decontamination is sufficient can a good anti-corrosion effect be achieved. After electrostatic bonding, the powder passes through a high temperature curing line.
As we all know, the highway guardrail is an outdoor facility. In an open environment, we have to accept the invasion of sunlight, wind and rain and other natural environments. Even if the guardrail is not used for a long time, problems such as cracking and rusting will occur, and it looks very old and ugly, affecting the visual effect of the entire road. In contrast, the anti-corrosion performance of the plastic-sprayed road guardrail is much stronger than that of the ordinary guardrail.
This kind of corrosion resistance is based on the heavy anti-corrosion treatment in the production process, which solves the problem that the traditional ordinary corrugated guardrail is easy to rust and break. The surface of the guardrail is sprayed with polyester powder, and the inner coating is hot-dip galvanized. In this structure, electrostatic spraying is carried out in connection with the substrate.
In addition to being superior to ordinary guardrails in corrosion resistance, spray-plastic highway guardrails also have the advantages of high temperature resistance and low temperature resistance. Even if the sun is exposed to high temperature for a long time, there will be no problems such as bulging, folding, and falling off. In addition, the corrugated guardrail also has advantages in terms of performance and appearance. By spraying green and other colors, it is more beautiful and generous than other guardrails, adding some color to the monotonous road, and improving the driving coefficient of the vehicle to a large extent.
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