CN108839395B - Toothed plate reinforced composite plate and production process thereof - Google Patents

Abstract

The invention discloses a tooth plate-reinforced composite plate and its production process, which includes a core material and a metal tooth plate. The upper and lower sides of the core material are reinforced by metal tooth plates. The core material is a thermoplastic polymer material. The structure is a hollow structure; the metal tooth plate is provided with pins and raised patterns of thermoplastic polymer material; the opening shape of the metal tooth plate can be circular, square, elliptical or other multiple deformations. The invention has the advantages of good adhesion, improved in-situ bearing capacity, convenient laying, recyclability, recycling after being broken, low cost, safe use, etc.

Description

A tooth plate reinforced composite plate and its production process

Technical field

The technical field of the present invention is composite materials, specifically a tooth plate-reinforced composite plate and its production process, which are used in transportation, construction and other fields.

Background technique

Traditional plates mostly use single-layer steel plates. Although they have good stiffness, good load-bearing capacity and are easy to process, they still have some shortcomings.

1. Steel plates are heavy, difficult to lay and move, time-consuming and labor-intensive, inconvenient to transport and stack, and costly.

2. When encountering impacts such as vehicles or external forces, it is easy to have dents that cannot be reset naturally, are easily deformed, and have a short service life.

3. Since the surface of the steel plate is smooth and the friction coefficient is small, in practical applications, such as when used on soft sand, silt, etc., its grip with the foundation is small, which is not conducive to vehicles or pedestrians walking.

4. Existing pure polymer plastics have low strength, insufficient stiffness and poor impact resistance.

Contents of the invention

The purpose of the present invention is to overcome the problems of existing pure polymer plastics such as low strength, insufficient stiffness and poor impact resistance, and provide a tooth plate reinforced composite plate and its production process, which have good adhesion and improved in-situ load bearing. It has the advantages of strength, easy laying, recyclability, recyclability after damage, low cost, and safe use.

The technical solution adopted by the present invention is: a tooth plate-reinforced composite plate, which includes a core material and a metal tooth plate. The upper and lower sides of the core material are reinforced by metal tooth plates. The core material is a thermoplastic polymer material. The structure is a hollow structure; the metal tooth plate is provided with pins and raised patterns of thermoplastic polymer material;

The opening shape of the metal tooth plate may be circular, square, elliptical or other multiple deformations. The opening shape of the tooth plate enables the overflowing thermoplastic polymer material to form convex patterns of different shapes during the pressing process.

The hollow structure of the core material can be honeycomb shape, spherical shape, cylindrical shape, and other polygonal columnar structures.

Preferably, the thermoplastic polymer material is polymer polyethylene or polymer polypropylene.

Preferably, the metal tooth plate is stamped from a steel plate, an aluminum plate or other metal plates, and during the stamping process, the tooth nails are formed at one time.

The production process of the above-mentioned tooth plate reinforced composite plate includes the following steps:

1) First perform veneer core processing: veneer core processing is to heat the thermoplastic polymer material to a semi-molten state through a heating mold, then lay a metal tooth plate with pins on the surface of the thermoplastic polymer material, and heat the mold by heating the mold. Press molding in one step; in order to improve the bonding force between the metal tooth plate and the thermoplastic polymer material, an interface agent is applied between the metal tooth plate and the thermoplastic polymer material to improve the interface compatibility between the two and enhance the overall bonding. force;

2) Then join the double boards together: There are two ways to join the double boards:

The first method is to use a heating plate to heat the bonding surface of the veneer core to a semi-molten state after the veneer core is processed, and then use a flat plate press to press the two veneers along the normal line of the core surface. Directional press bonding. When the heating plate heats the veneer core, first place the heating plate in the middle of the two veneer cores. When the core is heated to a semi-molten state, move the heating plate from the core in one direction. The veneers are quickly separated, and then a flat plate press is used to extrude the veneer. Finally, through the compaction, cooling and solidification process, the flat press is removed to obtain the finished composite plate body.

The second method is to use a heating plate to heat the bonding surface of the veneer core to a semi-molten state after the veneer core is processed, and then use a roller press to press the two veneers along the normal line of the core surface. Directional press bonding. When the heating plate heats the veneer core, first place the heating plate in the middle of the two veneer cores. When the core is heated to a semi-molten state, move the heating plate from the core in one direction. The veneers are quickly separated, and then a roller press is used to extrude the veneer. Finally, through compaction, cooling and solidification processes, the finished composite plate body is obtained.

The metal tooth plate is stamped from steel plate, aluminum plate or other metal plates. The opening shape of the tooth plate can be round, square, oval or other multiple deformations. During the stamping process, the tooth nails are formed at one time.

Preferably, the interface agent includes polymer glues such as epoxy resin glue, polyurethane (PU) glue, amino resin glue, phenolic resin glue, acrylic resin glue, polyimide glue, and urea-formaldehyde resin glue.

The main uses of the invention are temporary roads, emergency passages, and construction paving slabs.

Beneficial effects: When the bonding performance between the metal plate and the polymer plastic plate is not good, the invention can effectively enhance the bonding performance and improve the overall mechanical properties through the cooperation of the interface agent and the tooth nail. At the same time, this kind of board has the advantages of good adhesion, light weight, recyclability, recyclability after damage, low cost, and safe use.

Description of the drawings

Figure 1 is a schematic structural diagram of the tooth plate reinforced composite plate of the present invention;

Figure 2a is a schematic diagram of the initial mold and materials in the veneer forming process;

Figure 2b is a schematic diagram of the veneer forming process;

Figure 2c is a schematic diagram of the forming plate of the veneer forming process;

Figure 3a is a schematic diagram of the first double-plate joining process;

Figure 3b is a schematic diagram of the second double-plate joining process;

Figure 3c is a schematic diagram of the forming plate of the double plate joining process;

Figure 4a is a schematic diagram of a polygonal metal tooth plate with openings according to the present invention;

Figure 4b is a schematic diagram of a rectangular metal tooth plate with an opening according to the present invention;

Figure 4c is a schematic diagram of an oval metal tooth plate with an opening according to the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, a tooth plate-reinforced composite plate includes a core material 1 and a metal tooth plate 2. The upper and lower sides of the core material 1 are reinforced by metal tooth plates 2. The core material 1 is a thermoplastic polymer material. The thermoplastic polymer material is polymer polyethylene or polymer polypropylene. The structure of the core material 1 is a hollow structure; the metal tooth plate 2 is provided with pins 3 and raised patterns 4 of thermoplastic polymer material;

The opening shape of the metal tooth plate 2 may be circular, square, elliptical or other multiple deformations. The opening shape of the metal tooth plate 2 enables the overflowing thermoplastic polymer material to form convex patterns of different shapes during the pressing process. The metal tooth plate 2 is stamped from a steel plate, an aluminum plate or other metal plates. During the stamping process, the tooth nails are formed at one time.

The hollow structure of the core material 1 may be in the shape of honeycomb, spherical, cylindrical, or other polygonal columnar structures.

The production process of the above-mentioned tooth plate reinforced composite plate includes the following steps:

1) As shown in Figure 2, veneer core processing is performed first: veneer core processing is to heat the thermoplastic polymer material 6 to a semi-molten state through the heating mold 5, and then lay pins 3 on the surface of the thermoplastic polymer material. The metal tooth plate 2 is pressed and formed by the heating mold 5; in order to improve the bonding force between the metal tooth plate 2 and the thermoplastic polymer material 6, an interface agent is applied between the metal tooth plate 2 and the thermoplastic polymer material 6 To improve the interface compatibility between the two and enhance the overall bonding force;

2) Then join the double boards together: There are two ways to join the double boards:

The first method is to use the heating plate 7 to heat the bonding surface of the veneer core to a semi-molten state after the veneer core is processed, and then use the flat plate press 8 to press the two veneers along the core surface. Pressure bonding in the normal direction. When the heating plate 7 heats the veneer core, first place the heating plate 7 in the middle of the two veneer cores. When the core is heated to a semi-molten state, the heating plate 7 It is quickly pulled out from between the cores in one direction, and then a flat plate press 8 is used to extrude the veneer in the direction shown in Figure 3a. Finally, through the compaction, cooling and solidification process, the flat plate press 8 is removed to obtain the finished product of the composite plate body.

The second method is to use the heating plate 7 to heat the bonding surface of the veneer core to a semi-molten state after the veneer core is processed, and then use the roller press 9 to press the two veneers along the core surface. Pressure bonding in the normal direction. When the heating plate 7 heats the veneer core, first place the heating plate 7 in the middle of the two veneer cores. When the core is heated to a semi-molten state, the heating plate 7 The veneer is quickly pulled out from between the cores in one direction, and then the roller press 9 is used to extrude the veneer as shown in Figure 3b. Finally, through the compaction, cooling and solidification process, the finished composite plate body is obtained. Figure 3c shows the formed plate.

As shown in Figures 4a, 4b, and 4c, the metal tooth plate is stamped from steel plate, aluminum plate or other metal plates. The opening shape of the tooth plate can be round, square, elliptical or other multiple deformations. During the stamping process , the tooth nail is formed at one time. The interface agent includes epoxy resin glue, polyurethane (PU) glue, amino resin glue, phenolic resin glue, acrylic resin glue, polyimide glue, urea-formaldehyde resin glue and other polymer glues.

The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those of ordinary skill in the art, within the scope of the principles and technical ideas of the present invention, various changes, modifications, substitutions and deformations can be made to these embodiments and still fall within the protection scope of the present invention.

Claims (2)

1. A production process of a toothed plate reinforced composite plate is characterized by comprising the following steps of: the toothed plate reinforced composite plate comprises a core material and a metal toothed plate, wherein the upper surface and the lower surface of the core material are reinforced by the metal toothed plate, the core material is made of a thermoplastic polymer material, and the core material is of a hollow structure; the metal toothed plate is provided with pins and raised patterns of thermoplastic polymer materials, and the opening of the metal toothed plate is circular, square or elliptical; the hollow structure of the core material is honeycomb-shaped, spherical or cylindrical;

the thermoplastic polymer material is high-molecular polyethylene and high-molecular polypropylene;

the metal toothed plate is formed by stamping a steel plate, an aluminum plate or other metal plates;

the production process of the toothed plate reinforced composite plate comprises the following steps:

1) Firstly, processing a single board core: the processing of the veneer core is to heat the thermoplastic polymer material to a semi-molten state through a heating die, then spread a metal toothed plate with pins on the surface of the thermoplastic polymer material, and press the metal toothed plate into one-step molding through the heating die; in order to improve the binding force between the metal toothed plate and the thermoplastic polymer material, an interfacial agent is smeared between the metal toothed plate and the polymer material so as to improve the interfacial compatibility between the metal toothed plate and the polymer material and strengthen the overall binding force;

2) Then, double-plate splicing is carried out: the double-plate splicing is divided into two modes:

the first mode is that on the basis of finishing the processing of the single-plate cores, after the bonding surfaces of the single-plate cores are heated to a semi-molten state by a heating plate, two single plates are pressed and bonded along the normal line direction of the core surfaces by a flat press, wherein when the heating plate heats the single-plate cores, the heating plate is firstly placed at the middle position of the two single-plate cores, when the cores are heated to the semi-molten state, the heating plate is rapidly pulled away from the cores along a single direction, then the single plates are extruded by the flat press, and finally the flat press is removed by a compacting, cooling and solidifying process, so that a composite plate body finished product is obtained;

the second mode is that on the basis of finishing the processing of the single-plate cores, after the bonding surfaces of the single-plate cores are heated to a semi-molten state by a heating plate, two single plates are pressed and bonded along the normal line direction of the core surfaces by a roller press, wherein when the heating plate heats the single-plate cores, the heating plate is firstly placed at the middle position of the two single-plate cores, when the cores are heated to the semi-molten state, the heating plate is rapidly pulled away from between the cores along a single direction, then the single plates are extruded by the roller press, and finally, the composite plate body finished product is obtained by the compaction, cooling and solidification processes.

2. The process for producing a toothed plate reinforced composite plate according to claim 1, wherein: the interface agent comprises epoxy resin glue, polyurethane glue, amino resin glue, phenolic resin glue, acrylic resin glue, polyimide glue or urea resin glue.