Design And Manufacture Of Cone-shaped Shell Fabric

Along with the development of aviation, spaceflight and new & high technology, the potential of textile fiber technology is gradually being used by the composite material, In order to obtain some well mechanics capabilities and special structure functions, people had researched and exploited many kinds of three-dimensional fabric with new textile structure. Take the three-dimensional braided textile preforms as to strengthen the substance like the whole composite material structure, greatly enhanced its thickness direction intensity and the anti-impact & damage performance, developed the new domain for the application of advanced composite material, benefited for the whole-shaping of the composite material, and opened the new way for making the complicated shape composite material, enhanced the structure performance of composite material, and reduced the cost of production in composite material, thus it is valued and obtained the rapid development.This paper first through used the polypropylene fiber to finish the design and preparation & weaving of the four-layer fabric with weft yarn bonder structure and the twelve-layer fabric with three-dimensional orthogonal structure, and resolved some processing problems of polypropylene yarn in the process of two kinds of thick & heavy fabrics, such as easily being pulled thread, producing static electricity, pilling and the yarn caking, etc. At the same time, the tension control problems in these two kinds of thick & heavy fabrics' weaving process were analyzed. After two kinds of fabrics got off the machine, their both wefts and warps density as well as thickness were compared. Then by fixing the structure of the fabrics with Collodion, the section structure drawings of both kinds of fabrics were observed. The reasons what the differences between the actual structure and the theoretical design structure were analyzed. Through testing two kinds of fabrics' thickness and the quality in unit area in the same thread count condition, their bulk density were obtained and compared. On the Universal Testing Machine, the weft &warp tensile capability of two kinds of structures fabrics were tested. From the tested results, the conclusion was that the three-dimensional orthogonal structure fabric had better shape maintenance be obtained and it was chosen as an appropriate performance structure for the manufactured cone-shaped shell fabric. In the design and manufacture of cone-shaped shell fabric, the design of braided mode, the organizational structure, the basic structure's parameters (including the cone-shaped shell fabric's thickness, the density in arrangement of yarns' and the uniformity of density etc), the yarns adding project, the length of weft &warp and the design of the elastic element's length were introduced mainly and detailedly. Then according to the design scheme, the operating technique how to hang yarns in beginning, to add the pre-tension, to shed, to insert and beating-up weft as well as to add yarns gradually and so on were studied serially. A set reasonable and feasible hands-on craft and technology were obtained.After the cone-shaped shell fabric got-off the machine, its structure was fixed also with Collodion. Through tested the parameters such as warp and weft density, thickness and so on, observed the section structure, took the actual parameter compared with the correlation parameter of theoretical design, the results indicated that the design of cone-shaped shell fabric's structure was reasonable, each constituted technical parameter was feasible, and the adoptive manipulation technique was effective. All this means that if using high performance textile fibers, the correlative design and manufacture method can be carried on in the future.