CN101254498A - Plastic dipping or plastic spraying process of long afterglow self-luminous road safety guardrail - Google Patents

Abstract

The invention relates to a plastic dipping or plastic spraying process for long afterglow self-luminous road safety guardrails, which is characterized in that in the plastic dipping or plastic spraying process or the last dipping or spraying process of the process, the plastic dipping or plastic spraying powder used includes 15-75% of the long-lasting self-luminous material powder is uniformly mixed with the dipping or spraying powder, and then used in the dipping or spraying treatment process. The present invention takes into account the dual advantages of the spray/dipping coating and the surface of the self-luminous material, the coating is firm, wear-resistant and anti-corrosion, and utilizes the characteristics of the long afterglow self-luminous material to absorb light during the day and self-luminous for a long time at night, which is convenient for pedestrians, especially The safe driving of the vehicle avoids or reduces the occurrence of traffic accidents, is safe and environmentally friendly, saves energy, and beautifies and brightens the road. The invention can be widely used in railways, highways, especially on safety guardrails on both sides of expressways, and can also be used in other similar places.

Description

Plastic dipping or plastic spraying process of long afterglow self-luminous road safety guardrail

technical field

The invention relates to a plastic dipping or plastic spraying process for a road safety guardrail.

Background technique

Dip-molding is to immerse the steel parts preheated to above the melting point of the plastic powder into the fluidized bed so that the plastic powder evenly adheres to its surface, and then after high-temperature baking, leveling, cooling and plasticization, and on the surface of the steel parts A process for obtaining a weather-resistant polymer resin layer with a thickness of generally 0.5-1.5mm. Plastic spraying is to use electrostatic powder spraying equipment (electrostatic spraying machine) to spray plastic powder onto the surface of the workpiece. Under the action of static electricity, the powder will be evenly adsorbed on the surface of the workpiece to form a powdery coating; It is a process of baking, leveling and curing at a high temperature to make the powder melt and adhere to the surface of the workpiece, thereby beautifying the appearance of the workpiece and improving its corrosion resistance and service life.

Because dipping or spraying treatment has no pollution to the environment and is non-toxic to the human body; the construction is simple and convenient, and has low technical requirements for workers; the processing time is short and the cost is lower than that of spray painting; the coating has excellent appearance quality, adhesion and mechanical strength. Strong and the coating has the advantages of anti-corrosion, anti-rust, acid and alkali resistance, moisture resistance, insulation, aging resistance, long life and other excellent properties. Therefore, the dipping or spraying process is an update treatment process for traditional paint, galvanized and other coating films , will have a very broad application prospect.

At present, railways and highways, especially road guardrails of high-speed railways, widely use the aforementioned dipping or spraying treatment process on steel guardrails, which greatly improves the corrosion resistance and service life of steel guardrails. However, as guardrails on both sides of the road, whether it is a road or a railway, its safety protection and warning function should be the first. How to make the guardrail always play the role of safety protection and warning, especially in the state of insufficient light (such as: night). And current luminous guardrail usually adopts electric drive to emit light, such as Chinese patent "a kind of luminous guardrail" (patent application number: 200610114643.4); No.: 200420033770.8); the former needs to consume electric energy, and the latter is completely luminescent material directly acting on the surface of the guardrail to form a luminescent layer. On the one hand, the consumption of luminescent material is large, and on the other hand, its corrosion resistance cannot be guaranteed. Affected the service life of the steel guardrail.

Contents of the invention

In view of the actual needs and the above-mentioned gaps in the prior art, the present invention aims to disclose a long afterglow self-luminous road safety guardrail processed by dipping or spraying technology, which takes into account the dipping or spraying coating and self-illumination. The double advantages of material products are not only beautiful and practical, low cost, low consumption, high corrosion resistance and service life; but also have safety protection and warning functions at night.

Technical solution of the present invention is realized like this:

A plastic dipping or plastic spraying process for long afterglow self-luminous road safety guardrails, characterized in that in the plastic dipping or plastic spraying process or the last dipping or spraying process of the process, the plastic dipping or plastic spraying powder used includes 15 ~75% of the long-lasting self-luminous material powder is uniformly mixed with the dipping or spraying powder, and then used in the dipping or spraying treatment process. The content of its long afterglow self-luminous material varies according to the brightness of the light required for the guardrail at night and the color of the plastic powder itself.

After the dipping or spraying process, the dipped or sprayed workpiece is heated in a constant temperature furnace at 140-200° C. to solidify the powder attached to the surface of the workpiece.

A road safety guardrail with long afterglow self-luminous dipping or plastic spraying, characterized in that the coating layer or the outermost coating layer of the safety guardrail contains 15-75% of long-lasting self-luminous materials.

Compared with prior art, technical effect of the present invention is self-evident:

On the one hand, it has the advantages of dipping or spraying process and its coating, for example, easy construction, non-toxic, environmentally friendly, and its coating is firm, anti-corrosion and wear-resistant; on the other hand, it has the advantages of self-luminous materials, such as, Safety, energy saving, and environmental protection can not only beautify and brighten the road, but also have the function of night safety warning. Compared with the surface luminous guardrail made entirely of self-luminous materials, the present invention has better process performance and use performance, and its cost will be lower and its service life will be longer.

The invention can be widely applied to safety guardrails on both sides of various roads, including railways, highways, especially expressway and railway safety guardrails, and has more remarkable safety and practicability while beautifying and brightening roads. Can foresee its broad market prospects.

Detailed ways

Example 1 The long afterglow self-luminous railway safety guardrail is made by dipping process

(1) Pre-treatment: including sandblasting on the surface of the metal guardrail with the main purpose of degreasing, derusting and activation;

(2) Preheating treatment: heat the workpiece after pretreatment to about 350°C and keep it warm for 20 minutes;

(3) Impregnation: Dip the workpiece after heat treatment at about 350°C into the mixed dipping powder containing 20% long-lasting self-luminous material and 80% polytetrachlorethylene powder that has been uniformly mixed, so that the mixed powder is uniform Dip coating onto the workpiece surface;

(3) High temperature baking: heat preservation in a constant temperature furnace at about 180°C for 0.5 hours;

(4) Take it out of the oven and cool it down.

Example 2 Using the plastic spraying process to make long afterglow self-luminous highway safety guardrails

(1) Pre-treatment: including degreasing, derusting and phosphating treatment on the surface of the metal guardrail;

(2) Electrostatic spraying: add long-lasting self-luminous materials accounting for 70% of the total amount to the polyester powder containing curing agent and fluidizing agent, and after the mixed spray powder is mixed evenly, it is evenly sprayed on the surface of the workpiece;

(3) High temperature curing: heat preservation in a constant temperature furnace at about 160°C for 1 hour;

(4) Take it out of the oven and cool it down.

The long afterglow self-luminous road safety guardrail made by dipping or spraying process takes into account the dual advantages of dipping or spraying coating and the surface of self-luminous materials. The coating is firm, wear-resistant and anti-corrosion, and uses long-lasting self-luminous materials It absorbs light during the day and emits light for a long time at night, which facilitates the safe driving of pedestrians, especially vehicles, avoids or reduces the occurrence of traffic accidents, is safe and environmentally friendly, saves energy, and also beautifies and brightens the road. The invention can be widely used in railways, highways, especially on safety guardrails on both sides of expressways, and can also be used in other similar places.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical scheme of the present invention and Any equivalent replacement or change of the inventive concepts shall fall within the protection scope of the present invention.

Claims (3)

1, soaking of a kind of long afterglow self-luminescence road safety barrier moulded or workmanship of spraying plastics, it is characterized in that: the soaking of described technology mould or plastic-blasting operation or last dipping together or spraying process in, used soak mould or the plastic-blasting powder in comprise 15～75% long afterglow self-luminescence material powder, described soaking moulded or after the plastic-blasting powder evenly mixes, be used further to described soak mould or the plastic-blasting treatment process in.

2, soaking of long afterglow self-luminescence road safety barrier according to claim 1 moulded or workmanship of spraying plastics, it is characterized in that: described soak mould or the plastic-blasting treatment process after, workpiece after dipping or the spraying sent in 140～200 ℃ the constant temperature oven heat, make the powder curing that is attached to surface of the work.

3, a kind of long afterglow self-luminescence soaks and moulds or the road safety barrier of plastic-blasting, it is characterized in that the coat of described safety barrier or outermost coat contain 15～75% long afterglow self-luminescence material.