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    • 67. 发明申请
    • Methods and systems for the continuous in-line coating and fabrication of spiraled steel rebar for concrete structures
    • 用于混凝土结构的螺旋钢筋的连续在线涂覆和制造的方法和系统
    • US20030070279A1
    • 2003-04-17
    • US09973806
    • 2001-10-11
    • Richard D. Harding
    • B23P017/00B21C037/04
    • B21C47/08B05D1/06B05D3/0245B05D7/20B05D2202/10B05D2256/00B21C37/042B21C47/34Y10T29/49632Y10T29/49874Y10T29/49885Y10T29/49982Y10T29/5187
    • Methods and systems are provided for the continuous coating and fabrication of spiraled steel rebar product for concrete structures. Specifically, methods and systems are provided by which linear uncoated rebar is supplied to a polymeric (preferably, epoxy) powder-coating unit whereby a substantially uniform coating layer of a polymeric material is applied onto the uncoated rebar to form a linear coated rebar; and thereafter the linear coated rebar is bent into a spiraled steel rebar product. The bending unit employed to bend the linear coated rebar includes a series of bending wheels having separated upstream and downstream bending wheels and a central bending wheel which is disposed between and below these upstream and downstream bending wheels. By bringing the linear coated rebar into contact with the series of bending wheels, the rebar may be bent gently into spiraled steel rebar product without damage to the polymeric surface coating. In this regard, it has been found that such gentle bending of the coated rebar may be advantageously accomplished using bending wheels which include a rubber-like tire mounted on a rigid rotatable wheel member.
    • 为混凝土结构的螺旋钢筋产品的连续涂层和制造提供了方法和系统。 具体地说,提供了一种方法和系统,通过该方法和系统,将线性未涂覆钢筋供应到聚合物(优选环氧树脂)粉末涂料单元,由此聚合材料的基本上均匀的涂层施加到未涂覆的钢筋上以形成线性涂层钢筋; 然后将线性涂层钢筋弯曲成螺旋钢筋产品。 用于弯曲线性涂层钢筋的弯曲单元包括一系列具有分离的上游和下游弯曲轮的弯曲轮和设置在这些上游和下游弯曲轮之间和之下的中心弯曲轮。 通过使线性涂层钢筋与一系列弯曲轮接触,钢筋可以轻轻弯曲成螺旋钢筋产品,而不会损坏聚合物表面涂层。 在这方面,已经发现,使用包括安装在刚性可旋转轮构件上的橡胶状轮胎的弯曲轮可以有利地实现涂覆钢筋的这种温和弯曲。