Prestressing strand having corrosion protection double coatings
    1.
    发明授权
    Prestressing strand having corrosion protection double coatings 有权
    预应力股具有防腐双层涂层

    公开(公告)号:US07585562B2

    公开(公告)日:2009-09-08

    申请号:US11704930

    申请日:2007-02-12

    IPC分类号: D02G3/36 D02G3/22 E04C5/08

    摘要: To improve tensile strength without impairing flexibility and adhesion to concrete, and to form a thick coating in a surface layer part for preventing a basis material from being exposed by damage to the coating, a method of forming double coatings on a prestressing strand includes a primary painting process after a pre-treatment process, in which a resin coating is formed only at the surface layer, a secondary painting process in which respectively individual state resin coating is formed on an outer peripheral face of each of the core wire and surrounding wires under a loosened and separated state, thereby forming a double coating for each surrounding wire, and a finishing process of tightening and retwisting the surrounding wires about the core wire to an original state. The obtained prestressing strand has the double coating portions only at the surface layer and sufficient flexibility and adhesion to concrete.

    摘要翻译: 为了提高拉伸强度而不损害对混凝土的柔软性和粘合性,并且为了防止基材受到涂层的损害而在表面层部分形成厚的涂层,在预应力股线上形成双层涂层的方法包括: 在仅在表层形成树脂涂层的预处理工艺之后的涂漆工艺,在每个芯线和围绕的线的外周面上分别形成各自的状态树脂涂层的二次涂漆工艺 松弛和分离状态,从而形成用于每个周围的线的双重涂层,以及将围绕芯线的周围的线紧固并重新卷绕到原始状态的精加工过程。 所获得的预应力股仅在表面层具有双重涂层部分,并具有足够的柔韧性和对混凝土的粘合性。

    Method of forming corrosion protection double coatings on prestressing strand and prestressing strand produced by the method
    2.
    发明授权
    Method of forming corrosion protection double coatings on prestressing strand and prestressing strand produced by the method 有权
    在该方法制备的预应力股和预应力股上形成防腐双层涂层的方法

    公开(公告)号:US07241473B2

    公开(公告)日:2007-07-10

    申请号:US10865884

    申请日:2004-06-14

    IPC分类号: B05D1/12 B05D3/12

    摘要: To improve tensile strength without impairing flexibility and adhesion to concrete, and to form a thick coating in a surface layer part for preventing a basis material from being exposed by damage to the coating, a method of forming double coatings on a prestressing strand includes a primary painting process after a pre-treatment process, in which a resin coating is formed only at the surface layer, a secondary painting process in which respectively individual state resin coating is formed on an outer peripheral face of each of the core wire and surrounding wires under a loosened and separated state, thereby forming a double coating for each surrounding wire, and a finishing process of tightening and retwisting the surrounding wires about the core wire to an original state. The obtained prestressing strand has the double coating portions only at the surface layer and sufficient flexibility and adhesion to concrete.

    摘要翻译: 为了提高拉伸强度而不损害对混凝土的柔软性和粘合性,并且为了防止基材受到涂层的损害而在表面层部分形成厚的涂层,在预应力股线上形成双层涂层的方法包括: 在仅在表层形成树脂涂层的预处理工艺之后的涂漆工艺,在每个芯线和围绕的线的外周面上分别形成各自的状态树脂涂层的二次涂漆工艺 松弛和分离状态,从而形成用于每个周围的线的双重涂层,以及将围绕芯线的周围的线紧固并重新卷绕到原始状态的精加工过程。 所获得的预应力股仅在表面层具有双重涂层部分,并具有足够的柔韧性和对混凝土的粘合性。

    Apparatus for forming corrosion protection coatings on prestressing
strand
    3.
    发明授权
    Apparatus for forming corrosion protection coatings on prestressing strand 失效
    在预应力股上形成防腐涂层的装置

    公开(公告)号:US5362326A

    公开(公告)日:1994-11-08

    申请号:US45865

    申请日:1993-04-14

    摘要: Disclosed is a method of forming corrosion protection coatings on prestressing strands. It comprises the steps of untwisting sequential lengths of a prestressing strand; keeping the surrounding steel wires apart from the core steel wire to coat these steel wires with a synthetic resin; and twisting the coated steel wires to provide a prestressing strand of the original shape, thus permitting the separate coating of each steel wire, leaving, on the prestressing strand surface, the helical dent as deep and wide as the noncoated prestressing strand to assure the bond of the twisted wire to the surrounding concrete as firm as the noncoated prestressing strand. Also, an apparatus for carrying out such coating method is disclosed.

    摘要翻译: 公开了一种在预应力股线上形成防腐蚀涂层的方法。 它包括解捻预应力股的顺序长度的步骤; 将周围钢丝与芯钢丝分开,用合成树脂涂覆钢丝; 并且扭绞涂覆的钢丝以提供原始形状的预应力股线,从而允许每个钢丝线的单独涂覆,在预应力股线表面上留下与未涂覆的预应力股一样深和宽的螺旋形凹痕,以确保结合 的扭绞线到周围的混凝土,如同未涂覆的预应力股一样牢固。 另外,公开了一种用于进行这种涂布方法的设备。

    Prestressing strand having corrosion protection double coatings
    4.
    发明申请
    Prestressing strand having corrosion protection double coatings 有权
    预应力股具有防腐双层涂层

    公开(公告)号:US20070141336A1

    公开(公告)日:2007-06-21

    申请号:US11704930

    申请日:2007-02-12

    IPC分类号: D02G3/00

    摘要: To improve tensile strength without impairing flexibility and adhesion to concrete, and to form a thick coating in a surface layer part for preventing a basis material from being exposed by damage to the coating, a method of forming double coatings on a prestressing strand includes a primary painting process after a pre-treatment process, in which a resin coating is formed only at the surface layer, a secondary painting process in which respectively individual state resin coating is formed on an outer peripheral face of each of the core wire and surrounding wires under a loosened and separated state, thereby forming a double coating for each surrounding wire, and a finishing process of tightening and retwisting the surrounding wires about the core wire to an original state. The obtained prestressing strand has the double coating portions only at the surface layer and sufficient flexibility and adhesion to concrete.

    摘要翻译: 为了提高拉伸强度而不损害对混凝土的柔软性和粘合性,并且为了防止基材受到涂层的损害而在表面层部分形成厚的涂层,在预应力股线上形成双层涂层的方法包括: 在仅在表层形成树脂涂层的预处理工艺之后的涂漆工艺,在每个芯线和围绕的线的外周面上分别形成各自的状态树脂涂层的二次涂漆工艺 松弛和分离状态,从而形成用于每个周围的线的双重涂层,以及将围绕芯线的周围的线紧固并重新卷绕到原始状态的精加工过程。 所获得的预应力股仅在表面层具有双重涂层部分,并具有足够的柔韧性和对混凝土的粘合性。