摘要:
A braider having a mandrel support member (Bm) which is pivotable around a braiding point and linearly movable toward and away from the braiding point. Since control of the position of the mandrel (m) is performed by pivotal motion around the braiding point and linear movement in a direction toward the braiding point, the mandrel can be moved to an arbitrary position without depending upon movement of the mandrel by a great distance in one direction.
摘要:
Triaxial textile armature for making high quality composite materials comprising a central layer of axial yarns and at least two side layers of axial yarns. The side layers of axial yarns are placed on opposite sides with regard to the central layer of axial yarns. The axial layers are crosslinked by two directions of bias yarns. The bias yarns of the first direction pass through the central layer of axial yarns in even intervals between axial yarns. The bias yarns of the second direction pass through the central layer of axial yarns in odd intervals between axial yarns. An elementary pattern is formed of twelve axial yarns arranged in three layers, wherein the yarns of the central layer are placed in quincunxes with regard to the axial yarns of the side layers, linked by two crossed sets of N bias yarns each, wherein each bias yarn passes alternatively over six axial yarns and under six axial yarns while crossing 2*N yarns of the other bias direction. The invention also relates to a process for making such armature and a composite material part comprising such armature
摘要:
Braiding machine comprising a series of plates arranged in a continuous manner in a closed circuit, each plate comprising a number of slots that accommodate a number of spindles with a guide; at least one drive means that drives the plates, guide channels where the spindle guides run and at least two diverter channels having two positions: a first position for continuous rotation in one same plate and a second position, for switching plates.