CN204659092U - A kind of polyurethane refill material compound spare tire cover plate - Google Patents

Abstract

The utility model proposes a polyurethane paper core material composite spare tire cover plate, which is formed by superimposing five layers of pouring molding, the first layer is a rigid polyurethane foam layer, the second layer is a glass fiber felt reinforcement layer, and the third layer It is the support layer of the honeycomb paper core; the fourth layer is the reinforced layer of glass fiber felt, and the fifth layer is the rigid polyurethane foam layer. The main body of the polyurethane paper core composite spare tire cover plate is composed of double-sided rigid polyurethane foam and a paper core support layer, and a glass fiber reinforcement layer is added to achieve the purpose of weight reduction and reinforcement; it has the following advantages: 1. Glass fiber mat Combined with paper core material, sprayed with polyurethane foam, and molded, the molding process is simple, the molding performance is good, and it can adapt to complex shapes; 2. High degree of design freedom; 3. Using rigid foam as the main body can achieve low VOC emissions. Reduce the emission of harmful substances in the car and improve the passenger environment in the car; the performance of polyurethane is stable, and it also has the advantages of aging resistance, flame retardancy, strong resistance to deformation, and high comprehensive cost performance.

Description

A polyurethane paper core material composite spare tire cover

technical field

The utility model relates to an automobile spare tire cover plate.

Background technique

Nowadays, people put forward higher and higher requirements for the safety, comfort and environmental protection of automobiles. With the advantages of light weight, high strength and high degree of design freedom, polyurethane composite materials are more and more widely used in automobiles. .

Contents of the invention

In order to increase strength and reduce weight, the utility model proposes a polyurethane paper core material composite spare tire cover.

The technical scheme of the utility model is: a polyurethane paper core material composite spare tire cover plate, which is characterized in that it is formed by superimposing five layers of casting molding, the first layer is a rigid polyurethane foam layer, and the second layer is a glass fiber felt Reinforcement layer, the third layer is the honeycomb paper core support layer; the fourth layer is the glass fiber mat reinforcement layer, and the fifth layer is the rigid polyurethane foam layer.

Beneficial effects: the main body of the polyurethane paper core composite spare tire cover plate is composed of double-sided rigid polyurethane foam and a paper core support layer, and a glass fiber reinforcement layer is added to achieve the purpose of weight reduction and reinforcement. It has the following advantages: 1. Combination of glass fiber mat and paper core material, spraying polyurethane foam material, molding, simple molding process, good molding performance, and adaptable to complex shapes; 2. High degree of design freedom, can be designed as non-planar products and Different thickness products, etc., can also meet the different strength requirements of the product by adjusting the amount of glass fiber mat and polyurethane material. 3. Using rigid foam as the main body can achieve low VOC emissions, reduce the emission of harmful substances in the car, and improve the passenger environment in the car; polyurethane has stable performance, aging resistance, flame retardancy, strong deformation resistance, and comprehensive cost performance Advanced advantage.

Description of drawings

Fig. 1 is a structural schematic diagram of a polyurethane paper core composite spare tire cover.

Detailed ways

Figure 1 shows a polyurethane paper core material composite spare tire cover, from top to bottom, a rigid polyurethane foam layer 1 with a density of 300-800kg/m ³ ; a glass fiber reinforced layer 2 with a gram weight of 100- 300g/m ² ; honeycomb paper core support layer 3, thickness 10-30mm; glass fiber reinforced layer 4, weight 100-300g/m ² ; rigid polyurethane foam layer 5, density 300-800kg/m ³ ; Casting, molding and foaming.

As shown in Figure 1, the thickness of a polyurethane paper core composite cover can be achieved by adjusting the thickness of the honeycomb paper core. With the increase of the thickness of the honeycomb paper core, the strength of the product will increase exponentially.

Claims (2)

1. a polyurethane refill material compound spare tire cover plate, is characterised in that: product by five stacked add cast mold pressing form, ground floor is hard polyurethane foam layer, second layer fiberglass reinforced layer, third layer is refill supporting layer, and the 4th layer is fiberglass reinforced layer, layer 5 hard polyurethane foam layer.

2. a kind of polyurethane refill material compound spare tire cover plate according to claim 1, is characterised in that: hard polyurethane foam layer density is 300-800kg/m ³; Fiberglass reinforced layer grammes per square metre is 100-300g/m ²; Honeycomb paper core supporting layer thickness is 10-30mm.