Method for manufacturing oxidized fiber bundle, method for manufacturing carbon fiber bundle, and joining apparatus
AssigneeTeijin Limited
InventorsYosuke Nakamura, Fumio Akiyama
Life of this patent
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Abstract
A manufacturing method and an apparatus enable high productivity. A method for manufacturing an oxidized fiber bundle includes joining an upstream precursor fiber bundle and a downstream precursor fiber bundle together with a joining fiber bundle, and oxidizing the joined precursor fiber bundles by feeding the joined precursor fiber bundles through an oxidization furnace. The joining includes applying an oiling agent to a joint area of a joining target precursor fiber bundle before joining the joining target precursor fiber bundle and the joining fiber bundle together. A quantity of the oiling agent adhering to the joint area is 0.15 to 0.85 wt %.
Claims7
A method for manufacturing an oxidized fiber bundle, the method comprising:
- joining an upstream precursor fiber bundle and a downstream precursor fiber bundle together with a joining fiber bundle;
- and
- oxidizing the joined precursor fiber bundles by feeding the joined precursor fiber bundles through an oxidization furnace,
- wherein the joining includes applying an oiling agent to a joint area of a joining target precursor fiber bundle before joining the joining target precursor fiber bundle and the joining fiber bundle together, and a quantity of the oiling agent adhering to the joint area is 0.15 to 0.85 wt %.
A method for manufacturing a carbon fiber bundle, the method comprising:
- joining an upstream precursor fiber bundle and a downstream precursor fiber bundle together with a joining fiber bundle;
- oxidizing the joined precursor fiber bundles by feeding the joined precursor fiber bundles through an oxidization furnace;
- and
- carbonizing the oxidized precursor fiber bundles,
- wherein the joining includes applying an oiling agent to a joint area of a joining target precursor fiber bundle before joining the joining target precursor fiber bundle and the joining fiber bundle together, and a quantity of the oiling agent adhering to the joint area is 0.15 to 0.85 wt %.
Dependencies are inferred from the claim text.