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公开(公告)号：US20150202670A1
公开(公告)日：2015-07-23
申请号：US14631297
申请日：2015-02-25
发明人： Karl-Hermann STAHL
CPC分类号： B21B1/163 , B23D31/002 , B23P17/06 , B26F3/00 , C04B14/48 , E04C5/012 , Y10T225/12 , Y10T428/1234 , Y10T428/12444
摘要： A method of making steel fibers, preferably for use as a concrete additive, and for the supply thereof in making steel fiber concrete, characterized in that to form the steel fibers (2) first a sheet-metal strip (1) is notched either on one face or both faces so as to form steel-fiber wires (4) that are initially connected together by webs (5), and that further, for subsequently converting the webs (5) into thin easily mutually separable separation webs forming separation surfaces that are fracture-rough and low in burring upon separation, the steel-fiber strip is subjected to a flexing process in which each web (5) is subjected to multiple bending deformations about its longitudinal axis in such a way that incipient cracks are produced at the webs (5) due to fatigue fracture and thus the separation webs are produced.
摘要翻译： 制造钢纤维的方法，优选用作混凝土添加剂，以及用于制造钢纤维混凝土的方法，其特征在于，为了形成钢纤维（2），首先将片状金属带（1）切口 一个面或两个面，以形成最初通过腹板（5）连接在一起的钢纤维丝（4），并且进一步地，为了随后将腹板（5）转化成薄的容易相互分离的分隔腹板，形成分离表面， 断裂粗糙且分离时毛刺较小，钢纤维条经受挠曲过程，其中每个卷材（5）围绕其纵向轴线经受多次弯曲变形，使得在其中产生初始裂纹 纤维网（5）由于疲劳断裂，从而产生分离网。
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公开(公告)号：US09630226B2
公开(公告)日：2017-04-25
申请号：US14631297
申请日：2015-02-25
发明人： Karl-Hermann Stahl
CPC分类号： B21B1/163 , B23D31/002 , B23P17/06 , B26F3/00 , C04B14/48 , E04C5/012 , Y10T225/12 , Y10T428/1234 , Y10T428/12444
摘要： A method of making steel fibers, preferably for use as a concrete additive, and for the supply thereof in making steel fiber concrete, characterized in that to form the steel fibers (2) first a sheet-metal strip (1) is notched either on one face or both faces so as to form steel-fiber wires (4) that are initially connected together by webs (5), and that further, for subsequently converting the webs (5) into thin easily mutually separable separation webs forming separation surfaces that are fracture-rough and low in burring upon separation, the steel-fiber strip is subjected to a flexing process in which each web (5) is subjected to multiple bending deformations about its longitudinal axis in such a way that incipient cracks are produced at the webs (5) due to fatigue fracture and thus the separation webs are produced.
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