Composite material platform floor with netty three-dimensional whole multidirectional linking and weaving structure and preparation method of the composite material platform floor
A technology for car floor and composite material, applied in braid, fabric, textile and other directions, can solve the problems of poor bending resistance, torsion resistance and impact resistance, low in-plane shear performance, and increased fiber volume content.
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Embodiment 1
[0107] The cross-section of the preformed part of the composite material carriage floor is square, and the external dimensions are: 25 meters (length) × 3 meters (width) × 0.03 meters (height).
[0108] 1) Design of preformed parts
[0109] a) determine the yarn raw material;
[0110] The raw material for all yarn systems is yarn bundles composed of glass fibres.
[0111] b) Determine the number of yarn carriers on the chassis of the knitting machine;
[0112] The number of rows of the main body yarn carrier is m=12, the number of columns of the main body yarn carrier is n=90, and the ratio of the braiding yarn system to the shaft yarn system is 1:1, that is, the shaft yarn is fully loaded.
[0113] Number of knitting yarn carriers: 12 rows x 900 columns = 10800
[0114] Number of shaft yarn carriers: 12 rows x 900 columns = 10800
[0115] c) Determine braiding angle, fiber volume content, flower node length;
[0116] The braiding angle is 20 degrees, the fiber volume conte...
Embodiment 2
[0162] The cross-section of the preformed part of the composite material compartment floor is square, and the external dimensions are: 25 meters (length) × 3 meters (width) × 0.05 meters (height).
[0163] 1) Design of preformed parts
[0164] a) determine the yarn raw material;
[0165] Weaving yarn system, shaft yarn system, horizontal filling weft system, longitudinal filling weft system, +45 degree filling weft system, -45 degree filling weft system, horizontal interweaving weft system, and longitudinal interweaving weft system all use T300 12k carbon fiber.
[0166] b) Determine the number of yarn carriers on the chassis of the knitting machine;
[0167] The number of rows of the main body yarn carrier is m=20, the number of columns of the main body yarn carrier is n=1000, and the ratio of the braiding yarn system and the shaft yarn system is 1:1, that is: full loading of shaft yarns.
[0168] Number of knitting yarn carriers: 20 rows x 1000 columns = 20000 pieces
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