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Title:
METAL FIBERS, AND METHOD AND DEVICE FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2024/062959
Kind Code:
A1
Abstract:
[Problem] To provide metal fibers for reinforcing concrete which are able to be mass-produced at low cost and have excellent resistance to pulling out and a method and device for producing the metal fibers. [Solution] Metal fibers for fiber-reinforced concrete which, in the three-dimensional space defined by X, Y, and Z axes that are perpendicular to each other, each have a width along the Y direction, a length along the X direction, and a thickness along the Z direction, and have a wavy linear main body which extends in the X-Y plane and in which the ends (11, 15) are bent portions that are bent at an obtuse angle in the Z direction. The metal fibers are each produced by cutting out a metal fiber (10) by shearing the leading end of a continuous metal sheet while the metal sheet is being intermittently conveyed, at the pitch equal to the Y-direction width, in the Y direction on the die of a pressing device.

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Inventors:
ITO KUNIO (JP)
Application Number:
PCT/JP2023/032968
Publication Date:
March 28, 2024
Filing Date:
September 11, 2023
Export Citation:
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Assignee:
ITO KUNIO (JP)
International Classes:
C04B14/48; B23D15/08
Foreign References:
JPH01122942A1989-05-16
JP2008137823A2008-06-19
JPS58155116A1983-09-14
JP2000247697A2000-09-12
CN201825879U2011-05-11
Attorney, Agent or Firm:
YANAGIDA, Masashi et al. (JP)
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