Preparation process of corrosion-resistant hot-dip galvanizing electrostatic spraying guardrail

Abstract

The invention relates to the technical field of hot galvanizing spraying processes, and discloses a preparation process of an anti-corrosion hot galvanizing electrostatic spraying guardrail, the outer surface of a guardrail main body is sprayed with an anti-corrosion coating, and the preparation process of the anti-corrosion coating sprayed on the guardrail comprises the following steps: S1, preparing a base material; s2, base material oil diffusion; s3, cutting the base material; s4, punching the base material; s5, base material degreasing; s6, phosphating the base material; s7, spraying and washing the base material; s8, drying the base material; s9, primary spraying of the base material; s10, primary curing of the base material; s11, secondary spraying of the base material; s12, carrying out secondary curing on the base material; s13, spraying the base material for the third time; s14, curing the base material for the third time; and S15, packaging and conveying. And S16, the guardrail is assembled, a layer of compact phosphating film is formed on the surface of the workpiece, formation of microbatteries on the surface of the metal workpiece is inhibited, corrosion of a coating film is effectively prevented, the adhesive force between a base body and a coating or between other organic finishing layers is improved, and the corrosion resistance and the adhesive performance of the preparation technology of the corrosion-resistant hot-dip galvanizing electrostatic spraying guardrail are improved.

Description

technical field [0001] The invention relates to the technical field of hot-dip galvanizing spraying technology, in particular to a preparation process of a corrosion-resistant hot-dip galvanized electrostatic spraying guardrail. Background technique [0002] Guardrails refer to industrial guardrails. Guardrails are mainly used for the protection and protection of personal safety and equipment and facilities in residences, highways, commercial areas, public places and other occasions. Guardrails can be seen everywhere in our lives. According to the height of guardrails, each The price of the meter length will also be different. [0003] The existing steel guardrail, also known as zinc alloy zinc steel guardrail, refers to the guardrail made of zinc alloy material. Because of its high strength, high hardness, exquisite appearance, bright color and other advantages, it has become the mainstream product used in traffic guardrails. At present, zinc alloy guardrails on the market ...

AI Technical Summary

Problems solved by technology

[0003] The existing steel guardrail, also known as zinc alloy zinc steel guardrail, refers to the guardrail made of zinc alloy material. Because of its high strength, high hardness, exquisite appearance, bright color and other advantages, it has become the mainstream product used in traffic guardrails. At present, zinc alloy guardrails on the market There are many types of steel guardrails, and the quality of products varies. Different production processes have an important impact on the quality of zinc steel guardrails. Due to the high strength, high hardness, oxidation resistance, temperature resistance and corrosion resistance of existing zinc steel guardrails. , so it cannot meet the working requirements of the preparation process of corrosion-resistant hot-dip galvanized electrostatic spraying guardrail, so a preparation process of corrosion-resistant hot-dip galvanized electrostatic spraying guardrail is proposed

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