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AssigneeTeijin Limited
InventorTakashi Toyozumi
Estimating the term…
[Problem] To make it possible to perform quantitative examination of slight weight unevenness of a material, and to provide a method for manufacturing a carbon fiber composite material in which weight unevenness is suppressed through the examination step. [Solution] The above problem can be solved by a method for manufacturing a deposit containing a thermoplastic resin and carbon fibers and having a side of 300 mm or more, wherein the composite is manufactured through the following steps. Step 101: an examination step of examining the weight of an aggregate of carbon fibers or the deposit non-destructively. Step 201: a step of ascertaining weight unevenness on the basis of the result of examination in step S101. Step 301: a step of adding an aggregate of discontinuous carbon fibers and/or a thermoplastic resin to a weight-lacking area on the basis of the weight unevenness of step 201 so as to reduce the weight unevenness.
A method for manufacturing a deposit containing thermoplastic resin and discontinuous carbon fibers, wherein a length of one side of the deposit is 300 mm or more, the method manufacturing the deposit through the following steps:
A method for examining weight unevenness of any one of an aggregate of carbon fibers, a deposit containing thermoplastic resin and an aggregate of discontinuous carbon fibers, or a composite material in which the deposit is heated to impregnate the discontinuous carbon fibers with the thermoplastic resin, the any one of the aggregate, the deposit, and the composite material (hereinafter referred to as an object to be examined 2) having a length of one side of 300 mm or more, the method examining the weight unevenness through the following steps:
Dependencies are inferred from the claim text.