Integrated molding mold and molding method for a fiberglass radome

Abstract

The invention relates to an integrated forming mold and a forming method of a fiberglass radome. The integrated molding mold is composed of main mold (a), embedded round nut (b), special screw (c), glass fiber reinforced plastic skeleton (d) and outer mold (e); the molding process includes the following steps: (1) preparation work and Mold assembly; (2) raw material preparation; (3) layer laying; (4) autoclave forming radome; (5) demoulding and post-processing. The present invention realizes the synchronous glue joint insertion of the embedded round nut (b) in the radome molding process through the use of the integrated molding mold, avoids the cracks caused by mechanical drilling when the conventional method is inserted, and eliminates the need for drilling , The secondary bonding process reduces the difficulty of operation and improves the bonding effect of the embedded round nut (b); through the combined use of the main mold (a) and the outer mold (e), the radome is formed at the same time. The appearance quality requirements and dimensional accuracy requirements of the radome eliminate the manual grinding or machining process in the conventional forming method.

Description

technical field [0001] The invention relates to a forming technology of a glass fiber reinforced plastic radome, in particular to an integrated forming mold and a forming method of a glass fiber reinforced plastic radome. Background technique [0002] The main function of the radome is to protect the antenna system inside the hood from external damage and destruction, and has functions such as wave penetration, heat resistance, rain erosion resistance, weather resistance, load bearing, impact resistance, and air tightness. High-performance radome is usually formed by autoclave equipment. Since the autoclave forming equipment can strictly control the temperature, pressure, time and other factors of the radome during the molding process, it can also vacuumize and apply external pressure, so the resin of the radome Uniform distribution and compact structure. At the same time, the raw material of high-performance radome usually adopts continuous glass fiber prepreg. Continuous ...

AI Technical Summary

Problems solved by technology

[0004] (1) Due to the use of prepreg materials, when the metal parts used in the assembly of the radome are placed into the radome, the method currently generally used is the insertion method of mechanical drilling and secondary bonding after the radome is formed. This method leads to many processing procedures after the radome is formed, especially the quality of the bonding in the secondary bonding is greatly affected by human factors, and it is difficult to control the accuracy of the bonding

[0005] (2) After the radome is formed, manual grinding or mechanical processing is required to meet the appearance quality requirements and dimensional accuracy requirements of the product, which not only increases the processing procedures after the radome is formed, but also has different degrees of fiber damage during the processing. Affect the mechanical properties of high-performance radome products

However, the structural form of the radome has been confirmed and cannot be changed. Therefore, only a new radome forming process plan is proposed.

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