Document Type and Number:
Japanese Patent JPH0112850
Kind Code:
B2
Abstract:
A process for continuously producing carbon fibers which comprises interconnecting the rear end of a preceding precursor fibrous yarn with the front end of a subsequent precursor fibrous yarn and continuously calcining the successively interconnected precursor yarns. In said process, said rear end and said front end are doubled on each other so that said successive precursor yarns are connected with each other by means of a length of doubled portion or each of said rear and front ends is doubled on each end of a different type fibrous yarn capable of being calcined so that said successive yarns are connected with each other through said different type yarn by means of lengths of doubled portion, and said yarns are entangled at the doubled portion to integrally interconnect said successive precursor yarns, a tensile strength of said doubled and entangled portion after oxidation in an air atmosphere at about 230 DEG to 250 DEG C. for 100 to 200 minutes is at least 0.8 g/d.
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Inventors:
MORI YUKYOSHI
Application Number:
JP14460381A
Publication Date:
March 02, 1989
Filing Date:
September 16, 1981
Export Citation:
Assignee:
TORAY INDUSTRIES
International Classes:
D01F9/12; B65H69/06; D01F9/14