A woven textile defines a longitudinal direction and a horizontal direction and includes a first layer, a second layer, and at least one binding thread. The first layer includes at least one first braid extending in a meandering way. The second layer includes a plurality of rows of second braid extending along the horizontal direction in a meandering way. The rows of second braid are aligned along the longitudinal direction and are separated. Each of the rows of second braid is stacked with the at least one first braid to form a plurality of overlap portions. The at least one binding thread is woven with each of the rows of second braid and the at least one first braid together at the overlap portions to fix the row of second braid and the at least one first braid.

A woven textile defines a longitudinal direction and a horizontal direction and includes a first layer, a second layer, and at least one binding thread. The first layer includes at least one first braid extending in a meandering way. The second layer includes a plurality of rows of second braid extending along the horizontal direction in a meandering way. The rows of second braid are aligned along the longitudinal direction and are separated. Each of the rows of second braid is stacked with the at least one first braid to form a plurality of overlap portions. The at least one binding thread is woven with each of the rows of second braid and the at least one first braid together at the overlap portions to fix the row of second braid and the at least one first braid.

Methods and ceramic matrix composite articles formed thereby, as well as systems for making such ceramic matrix composite articles and carrying out such methods are disclosed herein. The methods include preparing a ceramic matrix composite by steps including (a) providing reinforcing fiber, such as carbon fiber, for impregnation; (b) heat treating the reinforcing fiber; (c) impregnating the heat treated reinforcing fiber with a composition comprising a ceramic forming polymer to form a fiber reinforced, ceramic forming polymer pre-preg; and (d) heat molding the fiber reinforced, ceramic forming polymer pre-preg to form a molded ceramic matrix composite article.

Methods and ceramic matrix composite articles formed thereby, as well as systems for making such ceramic matrix composite articles and carrying out such methods are disclosed herein. The methods include preparing a ceramic matrix composite by steps including (a) providing reinforcing fiber, such as carbon fiber, for impregnation; (b) heat treating the reinforcing fiber; (c) impregnating the heat treated reinforcing fiber with a composition comprising a ceramic forming polymer to form a fiber reinforced, ceramic forming polymer pre-preg; and (d) heat molding the fiber reinforced, ceramic forming polymer pre-preg to form a molded ceramic matrix composite article.

Methods of braiding using a braiding mechanism are described. The braiding machine includes first and second annular members, the second annular member being concentric with the first annular member. A mandrel extends perpendicularly to and intersects a horizontal plane defined by a substantially circular region of the second annular member substantially at the center of the circular region. Each of the annular members has a plurality of tubular guide wires slideably mounted thereon and a plurality of wires extend from the mandrel through each of the tubular wire guides. The first annular member rotates circumferentially relative to the second annular member. The first plurality of tubular wire guides slides radially inward to align with the second annular member, and the second plurality of tubular wire guides slides radially outward so as to align with the first annular member.

The present invention provides a using method of a seamless rope ring, comprising the following steps: sawing a braided end of the seamless rope ring and a tail end of the seamless rope ring together to form a double-lap seamless rope ring with a halved length; alternately winding a hitch-pulling rope and the double-lap seamless rope ring; and braiding a braided end of the hitch-pulling rope and a tail end of the hitch-pulling rope together to form a ring hitch. The seamless rope ring has a simple using method and extendable length so that the seamless rope ring has multiple purposes and using strength of the seamless rope ring is greatly enhanced.

The present invention provides a using method of a seamless rope ring, comprising the following steps: sawing a braided end of the seamless rope ring and a tail end of the seamless rope ring together to form a double-lap seamless rope ring with a halved length; alternately winding a hitch-pulling rope and the double-lap seamless rope ring; and braiding a braided end of the hitch-pulling rope and a tail end of the hitch-pulling rope together to form a ring hitch. The seamless rope ring has a simple using method and extendable length so that the seamless rope ring has multiple purposes and using strength of the seamless rope ring is greatly enhanced.

Methods of braiding using a braiding mechanism are described. The braiding mechanism includes a circular array of filament engagement elements, a mandrel extending from the center of the circular array, a plurality of actuators disposed operably about the circular array, and a rotating mechanism adapted to rotate one or more filaments. The circular array of filament engagement elements and the plurality of actuators are configured to move relative to one another. The plurality of filaments are loaded onto the mandrel and extend radially toward and contact the circumferential edge of the circular array of filament engagement elements. The plurality of actuators are operated to engage a first subset of the plurality of filaments and move the engaged filaments in a generally radial direction to a position beyond the circumferential edge of the circular array. The rotating mechanism is operated to move the engaged filaments about the mandrel axis.

A preform sheet for a composite component comprises a body section and a flange section. The preform body section includes a plurality of axial tows braided with at least a plurality of first bias tows and a plurality of second bias tows. The preform flange section includes a first braided flange layer and a second braided flange layer. The first braided flange layer is defined by the first and second braided bias tows of the preform body section extending into the flange section. Neither the first nor second braided flange layers have axial tows.

A preform sheet for a composite component comprises a body section and a flange section. The preform body section includes a plurality of axial tows braided with at least a plurality of first bias tows and a plurality of second bias tows. The preform flange section includes a first braided flange layer and a second braided flange layer. The first braided flange layer is defined by the first and second braided bias tows of the preform body section extending into the flange section. Neither the first nor second braided flange layers have axial tows.