To satisfy the requirements of fast producing,low cost manufacture and large thickness preforming in the field of non-resin winding cylinder composite,the equation of retracing cosine curve was deduced based on the section principle.

On the base of the research of the non-resin winding cylinder preforming technique,particular arithmetic used to develop the computer software was indicated.

In this dissertation, the technology of cylinder non-resin winding preforming was put forward and studied comprehensively and systematically.

Textile preforms with high level of pre-fabrication for fiber reinforced composites

Three weaving methods of cone-shaped tubular woven preforms were discussed.

The structural dimension of piston tail forging part and the key technology of die forging were analyzed in detail,then a three-step die forging process was determined which included blocker forging,finish forging and trimming.

The technological requirements for preparing tackified preforms by using LCM were painted out.

Microstructure of 3D six-directional braided preforms;

In order to obtain foam glass with high performance, the density, average and the maximum pore diameter, the biggest bubble and their proportion of sintering formed foam glass are tested by experimental study on wrapping and modification of foam glass admixture, adding graphite foaming agent and pre-press forming.