How to distinguish the quality of the guardrail?
发布时间 :
2023-03-02
Distinguishing the quality of guardrail panels mainly depends on two places: the production process and the adhesion of sprayed materials. A good manufacturing process is very important to the appearance of the corrugated guardrail, and the choice of material is related to the service life of the guardrail, both of which are essential. The manufacturing process of the corrugated guardrail mainly depends on whether the surface spray coating is uniform and smooth, and the solid color paint cannot be mixed with variegated colors, which is the basic requirement of the spraying process.
We can often see guardrails, but do you know how to distinguish the quality of good corrugated guardrails?
1. Distinguishing the quality of guardrail panels mainly depends on two places: the production process and the adhesion of sprayed materials. A good manufacturing process is very important to the appearance of the corrugated guardrail, and the choice of material is related to the service life of the guardrail, both of which are essential. The manufacturing process of the corrugated guardrail mainly depends on whether the surface spray coating is uniform and smooth, and the solid color paint cannot be mixed with variegated colors, which is the basic requirement of the spraying process.
2. Then it depends on the adhesion of the coating. The fusion degree between the steel surface and the zinc layer of the guardrail is very high, and after strict treatment, the galvanized layer is firmly embedded in the steel surface. Even in the event of a strong impact, the zinc-steel profile leaves no trace. Zinc steel profiles are easy to peel off the paint. Once the paint peels off, the oxidation rate will increase by one hundred times, so that the entire profile will be oxidized rapidly.
3. We can cut the sample into a small section for testing, hit the surface of the sample with a hammer, observe whether the coating will fall off, and observe whether the corrugated guardrail coating and the inner galvanized material are completely bonded together, if there is no problem with these , it indicates that the manufacturer's workmanship is good and trustworthy. You can also ask the manufacturer to provide the relevant zinc content test report to see whether the zinc content specified by the industry meets the standard.
4. The galvanized steel substrate is made of hot-dip galvanized steel strip, which can be made into galvanized corrugated guardrails of various specifications. The zinc content on the surface of the galvanized sheet reaches 300-600g/m2, and it cannot grow for 5-10 years in the natural environment.
5. The galvanized sheet is further processed for the guardrail: mechanical processing → chemical treatment (removing oil and dust → nano-ceramic passivation) → electrostatic spraying (→ curing (220 ° high temperature imitation enamel curing)) treatment, which can reach 10- No rust for 15 years.
6. The feature of the corrugated guardrail board is that it is not welded, and the accessories are combined with the wooden board, which is beautiful, firm and applicable, and meets the national guardrail board standard.
7. The surface of the guardrail is sprayed with plastic powder. Its products have beautiful appearance, colors can be matched at will, colors are better than rainbow, no welding interspersed combination, strong protection function, self-cleaning and environmental protection, etc., realizing the real low-carbon environmental protection green living products advocated by the state.
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