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US 2023/0390967 A1Published application
Sheet Molding Compound Production Method, Carbon Fiber Mat Deposition Apparatus, and Sheet Molding Compound Production Apparatus
AssigneeMitsubishi Chemical Corporation
InventorsKentaro Oda, Yasushi Watanabe, Tadao Samejima, Yukihiro Mizutori, Junji Kanehagi
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Abstract
The present disclosure provides a carbon fiber mat deposition apparatus and a method of manufacturing a sheet molding compound (SMC).
Claims21
A method of manufacturing a sheet molding compound, the method comprising:
- drawing out a carrier film from a roll so that the carrier film travels while a width direction of the carrier film is maintained to be horizontal;
- supplying a plurality of continuous carbon fiber bundles arranged in parallel to each other to a chopper comprising a cutter roll having a rotation axis parallel to a T direction that is a direction being horizontal and being perpendicular to a travel direction of the carrier film;
- cutting the continuous carbon fiber bundles using the chopper to produce chopped carbon fiber bundles;
- depositing a carbon fiber mat by allowing the chopped carbon fiber bundles to fall onto the carrier film, after fragmentation-processing the chopped carbon fiber bundles using a fragmentation-processing apparatus which is arranged below the chopper;
- impregnating the carbon fiber mat with a thermosetting resin composition;
- arranging a partition partitioning a space along the T direction, the space being that through which the fragmentation-processed chopped carbon fiber bundles fall,
- wherein, in at least a part of the partition, a normal line is inclined from the T direction in a horizontal plane.
4 more elements
A carbon fiber mat deposition apparatus comprising:
- a carrier film travel path;
- a chopper arranged above the travel path;
- a fragmentation-processing apparatus arranged between the chopper and the travel path;
- and
- a partition by which a space between the fragmentation-processing apparatus and the travel path is partitioned along a T direction,
- wherein, when a direction being horizontal and being perpendicular to the travel path is the T direction, the chopper comprises a cutter roll having a rotation axis parallel to the T direction, and, in at least a part of the partition, a normal line is inclined from the T direction in a horizontal plane.
3 more elements
Dependencies are inferred from the claim text.