Thermoplastic honeycomb board and preparation method thereof

Abstract

The invention discloses a thermoplastic honeycomb board and a preparation method thereof. The preparation method of the thermoplastic honeycomb board comprises the steps as follows: (1) double-layer composite pipes are manufactured, the inner layer of each double-layer composite pipe is a high-melting-point material layer, the outer layer of each double-layer composite pipe is a low-melting-point material layer, and the melting point of the low-melting-point material layer is lower than that of the high-melting-point material layer; (2) multiple double-layer composite pipes are arranged and bundled sequentially, the outer layer of each double-layer composite pipe is melt by heating while the inner layer is not melt, and then after cooling, the outer layers of the adjacent attached double-layer composite pipes are bonded together to form a honeycomb body; (3) the honeycomb body is cut along the cross section of the double-layer composite pipes, and a platy honeycomb substrate is obtained; and (4), the honeycomb substrate is sent to a double-steel-strip continuous press, and composite surface materials are hot-pressed on the top surface and the bottom surface of the honeycomb substrate, wherein an automatic feeding system is arranged on the feeding side of the double-steel-strip continuous press. According to the scheme, automatic production for hot-pressing compositing of the honeycomb substrate and the surface materials is achieved, labor is reduced, and the production quality and the production efficiency are improved.

Description

technical field [0001] The invention belongs to the field of manufacturing thermoplastic honeycomb panels, in particular to thermoplastic honeycomb panels and a preparation method thereof. Background technique [0002] The patent document with the publication number CN102689458A discloses a thermoplastic honeycomb panel and its preparation method. The honeycomb body is formed by thermal bonding of double-layer composite pipes, and the honeycomb base material is formed by cutting the honeycomb body. The honeycomb base material is hot-pressed to make it The surface layer is melted to form a glue bump, which is large in size and has a high connection strength, which is much higher than the bonding strength between the outer layers of the pipe or the connection strength of the small surface glue bump formed by hot wire cutting. For honeycomb panels with smaller area requirements, it can be obtained by hot pressing a single honeycomb base material. For honeycomb panels with large...

AI Technical Summary

Problems solved by technology

[0005] In addition, when the above-mentioned double-steel-belt continuous press is used to produce the thermoplastic honeycomb panel described in the patent document CN102689458A, it is necessary to manually place the honeycomb base material on the core plate conveying roller table of the double-steel-belt continuous press In general, the above-mentioned honeycomb base material is elastic because of the honeycomb structure inside, and the internal connection strength is low. During the manual handling process, it is easy to have problems such as uneven placement and breakage of the honeycomb base material, which requires a lot of labor.

Images