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公开(公告)号：EP3302861A1
公开(公告)日：2018-04-11
申请号：EP16725493.7
申请日：2016-05-24
申请人： NV Bekaert SA
摘要： Loop saw cord loops are more and more used on multi-loop saw machines for the slabbing of natural or artificial stone. Closing the steel cord (100) is a critical operation during the manufacture of the saw cord loop as the saw beads (102) threaded on the steel cord (100) must be able to glide over the splice (3) without obstruction in order to allow automation of the injection moulding process. To enable this, the inventors propose to form the tips (112) of abutting outer strand (306) ends in the splice (3) in a specific manner. In addition, the splice (3) also has an influence on the useful life time of the saw cord loop. The inventors have observed that it not only suffices that the splice (3) where the saw cord is closed withstands the tensile stresses during use, but the splice (3) must also have a bending stiffness and a torsional behaviour that does not substantially deviate from that of the saw cord outside of the splice (3). In order to reach that objective specific splicing patterns are disclosed that result in a saw cord loop wherein the splice (3) is not discernible from the remainder of the loop in terms of tension, bending or torsion behaviour.
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2.发明公开METAL SLEEVE FOR CARRYING THE ABRASIVE LAYER OF A SAW BEAD IN A SAW CORD 审中-公开EINEMSÄGEBAND公司的金属加工机械
公开(公告)号：EP3148736A1
公开(公告)日：2017-04-05
申请号：EP15719761.7
申请日：2015-05-08
申请人： NV Bekaert SA
发明人： BAEKELANDT, Tom , DERYCKE, Steven
摘要： Saw cords made of saw beads threaded on a steel cord, where the saw beads are separated by polymer spacers. The saw beads have a metal sleeve of which the outer surface is covered with an abrasive layer. The inner surface of the sleeve has with two sets of parallel grooves in a first and second axial part of the sleeve. The two sets of parallel grooves differ in at least one of the groove angle, the groove offset or the groove spacing, thereby preventing axial movement of the sleeve and blocking the rotation of the saw bead.
摘要翻译： 用于锯割天然或人造石材料的锯线由螺纹在钢丝绳上的锯条（52,522,522'）制成，其中锯齿由聚合物间隔物分开。 锯珠包括金属套筒（204,304），其外表面被研磨层覆盖。 本发明人观察到，由于在使用期间开始旋转的锯珠，从该领域返回的锯条经常失败，从而侵蚀钢帘线和锯条内部之间的聚合物。 最终，由于与锯屑和水的相互作用，聚合物被磨损并且钢帘线的外部钢丝被磨掉。 本发明人在套筒的第一（206,306）和第二（208,308）轴向部分中为套筒的内表面提供两组（214）平行的凹槽。 两组平行槽在凹槽角（α，β），槽偏移（Δ）或凹槽间距（11，D2）中的至少一个方面不同，从而防止套筒的轴向移动并阻止 锯珠。
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3.发明授权
公开(公告)号：EP3148736B1
公开(公告)日：2018-12-26
申请号：EP15719761.7
申请日：2015-05-08
申请人： NV Bekaert SA
发明人： BAEKELANDT, Tom , DERYCKE, Steven
摘要： Saw cords made of saw beads threaded on a steel cord, where the saw beads are separated by polymer spacers. The saw beads have a metal sleeve of which the outer surface is covered with an abrasive layer. The inner surface of the sleeve has with two sets of parallel grooves in a first and second axial part of the sleeve. The two sets of parallel grooves differ in at least one of the groove angle, the groove offset or the groove spacing, thereby preventing axial movement of the sleeve and blocking the rotation of the saw bead.
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公开(公告)号：EP3121369A1
公开(公告)日：2017-01-25
申请号：EP15177973.3
申请日：2015-07-23
申请人： NV Bekaert SA
发明人： MESPLONT, Christophe , SUAZO LUENGO, Alejandro , DERYCKE, Steven , PAREDES Montecinos, Hector , DEKEMPENEER, Erik
CPC分类号： E21D21/0006 , C21D1/18 , C21D1/19 , C21D1/22 , C21D1/25 , C21D8/065 , C21D2211/001 , C21D2211/008 , E21D21/0026 , E21D21/006
摘要： A cable bolt for providing support and balance to a rock mass, comprising: a multi-strand cable having a plurality of steel wires being twisted together, said multi-strand cable having a first end portion for anchoring in a borehole of rock mass and a second end portion for being positioned adjacent to the opening of the borehole, a fixture secured to the second end portion of said multi-strand cable, wherein at least one of the plurality of steel wires is made from steel having as steel composition: a carbon content ranging from 0.20 weight percent to 0.95 weight percent, a silicon content ranging from 0.5 weight percent to 2.0 weight percent, a manganese content ranging from 0.40 weight percent to 1.0 weight percent, a chromium content ranging from 0.0 weight per cent to 1.0 weight percent, a sulphur and phosphor content being limited to 0.025 weight percent, the remainder being iron, and said steel has as metallurgical structure: a volume percentage of retained austenite ranging from 4 percent to 25 percent, the remainder being tempered primary martensite and untempered secondary martensite.
摘要翻译： 一种用于向岩体提供支撑和平衡的电缆螺栓，包括：多股电缆，其具有扭绞在一起的多根钢丝，所述多股电缆具有用于锚固在岩体的钻孔中的第一端部和 用于定位成邻近钻孔的开口的第二端部，固定到所述多股缆索的第二端部的固定件，其中所述多根钢丝中的至少一个由具有钢组成的钢制成：碳 含量范围为0.20重量％至0.95重量％，硅含量为0.5重量％至2.0重量％，锰含量为0.40重量％至1.0重量％，铬含量为0.0重量％至1.0重量％ ，硫和磷含量限制在0.025重量％，其余为铁，所述钢具有如下冶金结构：残留奥氏体的体积百分比范围为 m 4％至25％，其余为回火初级马氏体和未回火的次级马氏体。
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公开(公告)号：EP3325769A1
公开(公告)日：2018-05-30
申请号：EP16739129.1
申请日：2016-07-14
申请人： NV Bekaert SA
发明人： MESPLONT, Christophe , SUAZO LUENGO, Alejandro , DERYCKE, Steven , PAREDES MONTECINOS, Hector , DEKEMPENEER, Erik
CPC分类号： E21D21/0006 , C21D1/18 , C21D1/19 , C21D1/22 , C21D1/25 , C21D8/065 , C21D9/525 , C21D2211/001 , C21D2211/008 , E21D21/0026 , E21D21/0046 , E21D21/006
摘要： A cable bolt for providing support and balance to a rock mass, comprising: a multi-strand cable having a plurality of steel wires being twisted together, said multi-strand cable having a first end portion for anchoring in a borehole of rock mass and a second end portion for being positioned adjacent to the opening of the borehole, a fixture secured to the second end portion of said multi-strand cable, wherein at least one of the plurality of steel wires is made from steel having as steel composition: a carbon content ranging from 0.20 weight percent to 0.95 weight percent, a silicon content ranging from 0.5 weight percent to 2.0 weight percent, a manganese content ranging from 0.40 weight percent to 1.0 weight percent, a chromium content ranging from 0.0 weight per cent to 1.0 weight percent, a sulphur and phosphor content being limited to 0.025 weight percent, the remainder being iron, and said steel has as metallurgical structure: a volume percentage of retained austenite ranging from 4 percent to 25 percent, the remainder being tempered primary martensite and untempered secondary martensite.
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