发明名称 |
Round fiber-reinforced plastic strand, manufacturing method thereof, and fiber-reinforced sheet |
摘要 |
It is an object of the present invention to provide round fiber-reinforced plastic strand, a manufacturing method thereof, and a fiber-reinforced sheet which eliminate limitation in forming speed and limit on number of products capable of being manufactured at a time, do not require use of a release agent, eliminate the necessity of operations such as roughing after forming, and thus permit a considerable reduction of the manufacturing cost and a remarkable increase in the product quality. The manufacturing method of the round fiber-reinforced plastic strand of the present invention comprises (a) a step of continuously feeding reinforcing fiber bundles f1 each comprising a plurality of reinforcing fibers arranged in a direction while twisting the reinforcing fiber bundles f1; (b) a step of impregnating the reinforcing fiber bundles f1 fed continuously with a matrix resin R; and (c) a step of heating the resin-impregnated reinforcing fiber bundles f2 while tensioning to a prescribed intensity, thereby forming the reinforcing fiber bundle into a circular cross-section and hardening the resin, and manufactures a fiber-reinforced plastic strand 2 having a circular cross-section.
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申请公布号 |
US8367194(B2) |
申请公布日期 |
2013.02.05 |
申请号 |
US20080529736 |
申请日期 |
2008.03.10 |
申请人 |
NIPPON STEEL COMPOSITE CO., LTD.;TAKEDA TOSHIKAZU;SHIMADA MASAKI;HINO HIDEHIKO;ARAZOE MASAKI |
发明人 |
TAKEDA TOSHIKAZU;SHIMADA MASAKI;HINO HIDEHIKO;ARAZOE MASAKI |
分类号 |
D04H1/00;B29D28/00;B32B19/00;D02G3/00 |
主分类号 |
D04H1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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