WEDGE AND PLUG TOOLING FOR PRE-CARBONIZATION COMPRESSION OF OXIDIZED PAN FIBER PREFORM

    公开(公告)号:US20220402827A1

    公开(公告)日:2022-12-22

    申请号:US17832403

    申请日:2022-06-03

    摘要: A shape forming tool for pre-carbonization compression of a fibrous preform is provided, comprising a female forming tool, a first plug, a second plug, and a wedge, each configured to be received by a die recess of the female forming tool. A first tapered surface of the wedge is configured to engage the first plug and the second tapered surface of the wedge is configured to engage the second plug. In response to the first tapered surface of the wedge engaging the first plug and the second tapered surface of the wedge engaging the second plug, the first plug and the second plug, respectively, are configured to move laterally towards opposing sides of the female forming tool and/or vertically toward a bottom side of the female forming tool to compress the fibrous preform into a shaped body.

    CARBONIZATION SHAPE FORMING OF OXIDIZED PAN FIBER PREFORM

    公开(公告)号:US20220402220A1

    公开(公告)日:2022-12-22

    申请号:US17832426

    申请日:2022-06-03

    摘要: A single stage OPF-to-carbon preform shape forming method includes positioning an oxidized PAN fiber preform with a female forming tool, positioning a vacuum bag over the oxidized PAN fiber preform, and vacuum forming the oxidized PAN fiber preform into a shaped body. The vacuum formed shaped body (while still in the shape forming fixture) may be loaded into a carbonization furnace and carbonized. The vacuum bag may be burned away in the carbonization furnace during carbonization.