A microwave-heated secondary-molded rivet-shaped marking structure and its construction method

Abstract

The present invention discloses a rivet-shaped marking structure formed by secondary molding by microwave heating and a construction method thereof. Relating to the technical field of road markings, the rivet-shaped marking in the present invention is a rivet-shaped road marking formed by secondary heating of a preformed marking produced in a factory during the construction process. The prefabricated marking line includes a wear-resistant reflective layer and a coating layer. At the same time, 6%-8% of a microwave absorber is added during the production process. The prefabricated marking line is placed in a road marking position groove. After microwave heating, the above-mentioned marking line partially melts and fills the gap in the groove. The marking line and the road surface position groove form a rivet structure, which is more pressure-resistant and solves the problem of loose interface embedding caused by a simple slotted shape. No adhesive is required, and the construction is convenient. In addition, during the above-mentioned heating process, the surface of the marking line forms a smooth arc under the action of the mold, which is not easy to adhere to a large number of pollutants, and the reflection angle and effect are better than those of ordinary irregular or rectangular markings.

Description

Technical Field

[0001] The present invention relates to the technical field of road markings, and in particular to a rivet-shaped road marking structure formed by secondary molding through microwave heating and a construction method thereof. Background Art

[0002] Road markings are an important part of traffic management. They guide vehicles and improve traffic safety. However, there are some problems with the current use of road markings. First, many road markings are severely worn and covered with dust and debris, making it difficult for drivers to quickly find the markings, thus losing sight of the driver. Especially at night or in bad weather conditions, it is difficult for drivers to identify the position and direction of road markings, increasing the risk of traffic accidents. Second, some road markings will fall off over time due to vehicle running over, weather erosion, and other reasons. Traffic management departments do not attach importance to the maintenance of road markings, resulting in a shorter service life of road markings and a longer construction time for updating road markings, which affects traffic flow. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a rivet-shaped marking structure and a construction method thereof which have a firm structure, are resistant to rolling, are easy to construct, have good reflective effect, are energy-saving and environmentally friendly.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A microwave-heated secondary-molded rivet-shaped road marking structure and a construction method thereof include a microwave-heated secondary-molded rivet-shaped road marking construction method, characterized in that: a road marking position groove and a prefabricated marking line are opened on the top of the road surface, the prefabricated marking line is composed of a wear-resistant reflective layer and a base layer, a microwave absorber is added during the manufacturing process, and the content of the microwave absorber accounts for 6%-8% of the total mass. The cross-section formed by the road marking position groove and the prefabricated marking line is rivet-shaped, and the method includes the following steps:

[0006] S1. Open a groove on the road surface to place the road marking position;

[0007] S2. Place the factory-made marking strips into the groove, ensuring that the bottom of the marking strips is in full contact with the groove.

[0008] S3. Place the mold on the marking line;

[0009] S4. The marking line is partially melted by microwave heating to fill the gap in the groove, and the top of the marking line is formed into an arc having a certain width and thickness under the action of the mold;

[0010] S5. Cool for 2 minutes, open the mold, and the marking part construction is completed.

[0011] Preferably, the road marking position groove has a groove depth of 5-6 mm and a groove width of 6 cm.

[0012] Preferably, the prefabricated marking line is heated by microwaves and formed into a marking line with an edge thickness of 1.5 mm and an arc-shaped surface shape under the action of a mold, and the arc radius is 90 mm.

[0013] Preferably, the factory-prefabricated marking stripes have a size of 6 cm in width and 1 cm in height.

[0014] Preferably, the mold material is polypropylene resin, and the mold size has an edge thickness of 1.5 mm and a radius of 90 mm.

[0015] Preferably, the microwave heating method has a heating temperature of 80°C-90°C and a heating time of 3 minutes.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention provides a rivet-shaped road marking structure that is secondary molded by microwave heating and a construction method thereof. The road marking lines are prefabricated in the factory, which can improve production efficiency and better guarantee the quality of the road marking lines. By secondary heating the prefabricated road marking lines, part of the road marking lines are melted to fill the gaps in the road marking position grooves. At the same time, the prefabricated road marking lines and the road marking position grooves form a rivet structure. The entire structure is resistant to rolling and solves the problem of loose interface inlay caused by simple slotted shapes. No adhesives are required, and the construction is simple and rapid. Microwave heating is used to selectively heat the prefabricated road marking lines, which is more energy-efficient and efficient. The top of the road marking line after microwave hot melting forms a smooth arc under the action of the mold, which is not easy to adhere to a large number of pollutants and is conducive to drainage on rainy days. The reflection angle and effect are better than those of ordinary irregular or rectangular road markings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a schematic diagram of the structural relationship between the prefabricated marking line and the road marking position groove before heating and the size of the prefabricated marking line and the road marking position groove.

[0019] Figure 2 This is a front view of the rivet-shaped marking structure formed by secondary molding through microwave heating according to the present invention.

[0020] Figure 3 This is an axonometric view of the rivet-shaped marking structure formed by secondary molding through microwave heating according to the present invention.

[0021] Figure 4 This is a flow chart of the construction method of the rivet-shaped marking structure formed by microwave heating and secondary molding according to the present invention. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] The present invention provides a microwave-heated secondary-molded rivet-shaped marking structure, as shown in Figures 1, 2, and 3. The structure is made of a polymer material and a certain amount of microwave absorbent material, wherein the resin material content is 15%-20%, the ethylene-vinyl acetate resin content is 2%-3%, and the pigment is titanium oxide with a content of 2%-7%. 15%-18% of quartz sand and 18%-25% of glass beads are added, wherein the particle size of the glass beads is 0.05-0.8mm, the ratio of hollow glass beads to solid glass beads is between 1:3 and 3:1, and 6%-8% of microwave absorbent is added. Finally, an appropriate amount of calcium carbonate is added. The marking line is prefabricated in the factory according to the above material ratio.

[0024] A microwave heating secondary molding rivet-shaped marking construction method, such as Figure 4 As shown, the following steps are included:

[0025] S1. Create a groove on the road surface for placing road markings;

[0026] S2. Place the prefabricated marking strip into the slot, ensuring the bottom of the marking strip is in full contact with the slot.

[0027] S3. Place the mold on the marking line;

[0028] S4. The marking line is partially melted by microwave heating to fill the gap in the groove, while the top of the marking line is formed into an arc with a certain width and thickness under the action of the mold;

[0029] S5. Cool for 2 minutes, open the mold, and the marking part construction is completed.

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] Example 1

[0032] The microwave-heated secondary-molded rivet-shaped marking structure used in this embodiment uses a prefabricated marking strip with a microwave absorbent content of 6%, a groove depth of 5 mm, and a heating temperature of 80° C. during microwave heating.

[0033] Example 2

[0034] The rivet-shaped marking structure formed by microwave heating in this embodiment uses a prefabricated marking strip with a microwave absorbent content of 6%. The groove depth is 6 mm. During microwave heating, the heating temperature is controlled to be 80°C.

[0035] Example 3

[0036] The rivet-shaped marking structure formed by microwave heating in this embodiment uses a prefabricated marking strip with a microwave absorbent content of 8%, a groove depth of 6 mm, and a heating temperature of 90° C. during microwave heating.

[0037] Comparative Example 1:

[0038] In this comparative example, a commercially available preformed marking tape was selected, which has an adhesive strength of 5N and a wear resistance (weight loss after 200 revolutions) of 32mg.

[0039] Table 1 shows the test methods and results of microwave-heated secondary-molded rivet-shaped marking tape:

[0040] Table 1

[0041]

[0042] As shown in Table 1, according to the test method for photometric properties of retroreflective materials (GB / T 21383-2008), the test conditions are: temperature 10-40°C, humidity ≤ 85%. The initial retroreflective brightness coefficients of the preformed road marking tapes of Examples 1, 2, and 3, as well as Comparative Example 1, were tested. The test results show that the initial retroreflective brightness coefficients of Examples 1, 2, and 3 are all superior to those of Comparative Example 1, indicating that the microwave-heated, post-molded road marking tape with a circular arc surface provided by the present invention has a better reflective effect, making it easier to identify even when a vehicle is driving at night with its headlights on.

[0043] The water resistance of the preformed road marking tapes of Examples 1, 2, 3, and Comparative Example 1 was tested according to the domestic industry standard JT / T493-2003 for preformed road marking tapes. The test results showed that none of the preformed road marking tapes in Examples 1, 2, and 3 exhibited peeling or fading, while Comparative Example 1 exhibited slight peeling and fading during the water resistance test. These test results demonstrate that the microwave-heated, post-molded road marking tape provided by the present invention exhibits excellent weather resistance.

[0044] According to the wear resistance test method GB / T1768, the wear resistance of a product is measured by the weight loss of the sample after a specified number of abrasion cycles under a certain load. The test conditions are: load 1000g, abrasion cycle 200 times. The wear resistance of the preformed road marking tapes in Examples 1, 2, and 3, as well as Comparative Example 1, was tested. The test results show that Examples 1, 2, and 3 all have better wear resistance than Comparative Example 1.

[0045] The adhesion and anti-slip properties of the preformed road marking tapes of Example 1, Example 2, Example 3, and Comparative Example 1 were tested in accordance with the domestic industry standard JT / T493-2003 for preformed road marking tapes. The test results indicate that the adhesion and anti-slip properties of Example 1, Example 2, and Example 3 are superior to those of Comparative Example 1, and the preformed road marking tape of Example 3 has the best adhesion.

[0046] The rivet-shaped marking structure in this embodiment is more resistant to crushing and has a stable structure. It solves the problem of loose interface embedment caused by simple slotted shapes. It also requires no adhesives, making it simple to install and physically processed. Furthermore, the microwave-melted marking creates a smooth arc at the top, making it less susceptible to contaminants and facilitating drainage in rainy weather. The resulting light emission angle and effect are superior to those of conventional irregular or rectangular markings.

[0047] The above is only a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above embodiment. For those skilled in the art, improvements and modifications obtained without departing from the technical concept of the present invention should also be considered as the scope of protection of the present invention.

[0048] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0049] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A microwave heating secondary molding rivet-shaped road marking construction method, characterized by: The road marking groove and prefabricated marking strips are provided on the top of the road surface. The prefabricated marking strips are composed of a wear-resistant reflective layer and a base layer. A microwave absorber is added during the manufacturing process. The content of the microwave absorber accounts for 6%-8% of the total mass. The cross-section formed by the road marking groove and the prefabricated marking strips is rivet-shaped. The method is characterized in that it includes the following steps: S1. Open a groove on the road surface to place the road marking position; S2. Place the factory-made marking strips into the groove, ensuring that the bottom of the marking strips is in full contact with the groove. S3. Place the mold on the marking line; S4. The marking line is partially melted by microwave heating to fill the gap in the groove, and the top of the marking line is formed into an arc having a certain width and thickness under the action of the mold; S5. Cool for 2 minutes, open the mold, and the marking part construction is completed.

2. The microwave heating secondary molding rivet-shaped road marking construction method according to claim 1, characterized in that: The road marking position groove has a groove depth of 5-6 mm and a groove width of 6 cm.

3. The microwave heating secondary molding rivet-shaped road marking construction method according to claim 1, characterized in that: The prefabricated marking line is heated by microwaves and formed into a marking line with an edge thickness of 1.5 mm and a surface shape of an arc under the action of a mold, and the arc radius is 90 mm.

4. The microwave heating secondary molding rivet-shaped road marking construction method according to claim 2, characterized in that: The factory-made marking stripes have a size of 6 cm in width and 1 cm in height.

5. The microwave heating secondary molding rivet-shaped road marking construction method according to claim 2, characterized in that: The mold material used is polypropylene resin, and the mold size has an edge thickness of 1.5 mm and a radius of 90 mm.

6. The microwave heating secondary molding rivet-shaped road marking construction method according to claim 5, characterized in that: The microwave heating method has a heating temperature of 80° C.-90° C. and a heating time of 3 minutes.

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