Research on a New Processing Technology for Advanced Composites

在本研究中，采用焦耳加热的方法对CFRP和CFRTP板进行了加工。在手持式高压罐中对碳/环氧层压板进行了焦耳热加工。穿透厚度的加工在技术上相当困难，而边缘到边缘的加热相对容易。力学性能的模数和强度是通过传统的高压灭菌法制造的参考板的90%或更多。该研究结果发表在《先进复合材料》第3卷第2期第153-161页1994.2页上。在本助学金的资金支持下，设计并加工了CFRTP处理装置。利用该机对碳纤维织物/尼龙板进行了试织。对热轧和焦耳加热两种工艺进行了试验，在热轧工艺中，虽然尺寸较小，但可以生产出2~10层的层合板。由于目前机器的特性还不够完善，今后还有几点需要克服。针对焦耳加热，进行了几次试验。其中，边对边供暖效果最好，尽管效果还处于起步阶段。还进行了层间剪切强度试验，并与热压法制作的参考板进行了比较。

In the present research, the processing of CFRP and CFRTP plates was tried by means of Joule heating.1. Joule-heat processing of carbon/epoxy laminates was carried out in a handy-autoclave. The through-the-thickness processing was technically pretty difficult, whereas the edge-to-edge heating was relatively easy.The mechanical properties of modulus and strength were 90% or more of the reference plate made by a conventional autoclave processing. The result was published in Advanced Composite Materials, vol.3, No.2, pp.153-161,1994.2. A CFRTP processing apparatus was designed and machined under the financial suspport of the present grant-in-aid. Using this machine, carbon fabric/nylon plates were tried to fabricare. Both hot roll processing and Joule-heat processing were tried.In the hot roll processing, laminates of 2 to 10 plies could be made, although the size is still small. Due to unsufficient characteristics of the present machine, there still remains several points to be overcome in the future.Concerning the Joule heating, several trials were carried out. Among them, the edge-to-edge heating was best, although the result is still in its infancy. An interlaminar shearing strength test was also done to compare the present plate with the reference plate made by hot press method.