CN2885921Y

CN2885921Y - Anti-corrosion steel strand with anti-skid structure

Info

Publication number: CN2885921Y
Application number: CN 200520136012
Authority: CN
Inventors: 陈文杰; 龙跃; 黄芳玮; 唐建国; 谭柳芳; 曾宪民; 张升华
Original assignee: Liuzhou OVM Machinery Co Ltd
Current assignee: Liuzhou OVM Machinery Co Ltd
Priority date: 2005-12-31
Filing date: 2005-12-31
Publication date: 2007-04-04
Anticipated expiration: 2015-12-31

Abstract

An anticorrosive steel stranded wire, with non-slip structure, relates to an anticorrosive prestressed reinforcement, which is formed by twisting from center threads and side threads. The interspaces formed by twisting from center threads and side threads are filled with anticorrosive materials, and an anticorrosive layer with non-slip structure is on the outer circumferential surface of the outmost side threads, namely that a plurality of (N,1<=N>=200) protuberant thin helixes or irregular(regular) distributed salient points (segments) are distributed on the outer side of the anticorrosive layer. Another character of the utility model is that the materials around the center threads and the side threads of the steel stranded wire and the anticorrosive materials in the interspaces formed by twisting from the two threads, and the anticorrosive materials which forms an anticorrosive layer by coating on the outmost side thread are all thermoplastic macromolecule-polyethylene or polyolefin. The anticorrosive steel stranded wire with this structure has a great friction and bonding force with concrete, a good anchoring effect, a good anti-corrosion capacity and a long life.

Description

The anticorrosive steel strand of band anti-skid structure

Technical field:

The utility model relates to a kind of anticorrosion prestressed bars, particularly a kind of anticorrosive steel strand with anti-skid structure.

Background technology:

Steel strand wires are generally by central hair, limit silk twisted forms, existing various anticorrosive steel strands generally have two kinds at present, first kind is directly at the outer coated one deck anticorrosive coat (referring to Fig. 5) of steel strand wires, second kind be with the central hair of steel strand wires with after each Gen Biansi carries out preservative treatment respectively again twisted become anticorrosive steel strand or form combined anti-corrosion layer steel strand wires (referring to Fig. 6) at the outer coated one deck of steel strand wires anticorrosive coat again, but no matter adopt the anticorrosive steel strand of which kind of anti-corrosion method, its limit silk outer surface all is smooth, when single use, its smooth outer surface frictional force is little, and is not so good with the concrete bonding of being poured into by anchoring body.

The utility model content:

The technical problems to be solved in the utility model is: provide a kind of outermost layer to have the anticorrosive steel strand of anti-skid structure, improve steel strand wires and concrete frictional force and cohesive force, to solve existing steel strand wires and the not so good problem of concrete bonding of being poured into by anchoring body.

The technical scheme that solves its above-mentioned technical problem is: a kind of anticorrosive steel strand with anti-skid structure, form by central hair, limit silk twisted, in the space of central hair and Bian Si twisted, be filled with anti-corrosion material, periphery at outermost layer limit silk has anticorrosive coat, it is characterized in that: the outermost layer anticorrosive coat of described steel strand wires is anticorrosive coats of band anti-skid structure; That is: the bossed slice screw line of this anticorrosive coat outside distribution, or the salient point of or irregular distribution regular, or the discontinuous convex line section of or irregular distribution regular in this anticorrosive coat outside in this anticorrosive coat outside.

As another feature of the present utility model be: around steel strand wires central hair and Bian Si and the anti-corrosion material of filling in the space of twisted and the periphery that the is coated in outermost layer limit silk anti-corrosion material that forms anticorrosive coat all are thermoplastic macromolecule materials---as polyethylene or polyolefin etc., around steel strand wires central hair and Bian Si and the anti-corrosion material of filling in the space of twisted merge into an organic whole with the anti-corrosion material that the periphery that is coated in outermost layer limit silk forms anticorrosive coat.

Owing to be evenly distributed with screw line or the salient point or the discontinuous convex line of many projections on the outermost anticorrosive coat of anticorrosive steel strand of the band anti-skid structure of the utility model, improved steel strand wires and concrete frictional force and cohesive force, anchoring effect is good;

Secondly, because the anti-corrosion material that the steel strand wires outermost layer applies all is to have excellent waterproof, Corrosion Protection with the material that is filled in steel strand wires inside, the thermoplastic macromolecule material that ductility and ageing resistance are good, can not produce pin hole, not easy to crack, difficult drop-off, thus the antiseptic power of steel strand wires improved greatly, prolonged the service life of steel strand wires.

Description of drawings:

Fig. 1～Fig. 5: the anticorrosive steel strand structural representation of the utility model band anti-skid structure:

Fig. 1-cross-sectional structure schematic diagram I, Fig. 2-cross-sectional structure schematic diagram II,

Fig. 3-anti-skid structure is a screw line, and Fig. 4-anti-skid structure is a spot-like projections,

Fig. 5-anti-skid structure is discontinuous wire projection;

Fig. 6～Fig. 7: the existing anticorrosive steel strand structural representation that has outer anticorrosive coat.

The specific embodiment:

Embodiment one:

A kind of anticorrosive steel strand with anti-skid structure, by central hair 1, silk 2 twisteds in limit form, in the space of central hair 1 and Bian Si 2 twisteds, be filled with anti-corrosion material 3, periphery at outermost layer limit silk has anticorrosive coat 4, this anticorrosive coat 4 is anticorrosive coats of band anti-skid structure, that is: anticorrosive coat 4 outsides of described steel strand wires are distributed with the slice screw line 5 of N bar projection, the span of N is 1≤N≤200, referring to Fig. 1, Fig. 2, Fig. 3, shown in Figure 1 is 7 strands of steel strand wires by a central hair and 6 limit filament winding systems, Fig. 2 represents by a central hair and 18 19 strands of steel strand wires that the limit filament winding is made, among the figure: 21 is internal layer limit silk, 22 is outer limit silk, internal layer limit silk 21, outer limit silk 22 general designation limit silks 2.

As a kind of conversion of present embodiment, described can not have anti-corrosion material 3 in the space of central hair 1 and Bian Si 2 twisteds, and only in the periphery of outermost layer limit silk 2 anticorrosive coat 4 is arranged.

Embodiment two:

A kind of anticorrosive steel strand with anti-skid structure, form by central hair 1, limit silk 2 twisteds, in the space of central hair 1 and Bian Si 2 twisteds, be filled with anti-corrosion material 3, also can not fill anti-corrosion material 3, the periphery of outermost layer limit silk has anticorrosive coat 4, this anticorrosive coat 4 is anticorrosive coats of band anti-skid structure, that is: the salient point 6 of the regular or irregular distribution in anticorrosive coat 4 outsides of described steel strand wires, the shape of cross section of this salient point 6 can be circular or square or other arbitrary shapes, its size is identical or different, referring to Fig. 4, Figure 4 shows that the dot of regular distribution.

Embodiment three:

A kind of anticorrosive steel strand with anti-skid structure, form by central hair 1, limit silk 2 twisteds, in the space of central hair 1 and Bian Si 2 twisteds, be filled with anti-corrosion material 3, also can not fill anti-corrosion material 3, the periphery of outermost layer limit silk has anticorrosive coat 4, this anticorrosive coat 4 is anticorrosive coats of band anti-skid structure, that is: the discontinuous convex line section 7 of the regular or irregular distribution in anticorrosive coat 4 outsides of described steel strand wires, the shape of this convex line section cross section can be circular or square or other arbitrary shapes, referring to Fig. 5, Figure 5 shows that the convex line section of regular distribution.

As another conversion of the utility model embodiment one, embodiment two, embodiment three, the central hair 1 of described steel strand wires and Ge Gen limit silk 2 are the steel wires that carry out preservative treatment respectively.

Embodiment four: a kind of anticorrosive steel strand with anti-skid structure, its basic structure is with embodiment one or embodiment two or embodiment three, institute's difference is: describedly be filled in around central hair 1 and the Bian Si 2 and the anti-corrosion material 3 in the space of twisted, the material that is coated in the periphery formation anticorrosive coat 4 of outermost layer limit silk 2 all is thermoplastic macromolecule material---polyethylene, polyolefin etc., they clamp-on in the steel strand wires under cryogenic conditions, inside stuffing that formation fuses and outside coat, guarantee that each root central hair 1 and Bian Si 2 in the steel strand wires are covered by inner stuffing and outside coat, there is slice screw line 5 or the irregular salient point 6 or the convex line section 7 of N bar projection in the outside of the anticorrosive coat 4 of described steel strand wires.

Claims

1, a kind of anticorrosive steel strand with anti-skid structure, form by central hair (1), limit silk (2) twisted, periphery at outermost layer limit silk has anticorrosive coat (4), it is characterized in that: described steel strand anticorrosive layer (4) is the anticorrosive coat of band anti-skid structure, that is: this anticorrosive coat outside bossed slice screw line that distributes, or the salient point of or irregular distribution regular, or the discontinuous convex line section of or irregular distribution regular in this anticorrosive coat outside in this anticorrosive coat outside.

2, the anticorrosive steel strand of band anti-skid structure according to claim 1 is characterized in that: be filled with anti-corrosion material (3) around central hair and Bian Si and in the space of twisted.

3, the anticorrosive steel strand of band anti-skid structure according to claim 1 and 2 is characterized in that: the anticorrosive coat of described steel strand wires (4) outside is distributed with the slice screw line (5) of N bar projection, and the span of N is 1≤N≤200.

4, the anticorrosive steel strand of band anti-skid structure according to claim 1 and 2, it is characterized in that: the salient point (6) of the regular or irregular distribution in the anticorrosive coat of described steel strand wires (4) outside, the shape of cross section of this salient point (6) can be circular or square, and its size is identical or different.

5, the anticorrosive steel strand of band anti-skid structure according to claim 1 and 2, it is characterized in that: the discontinuous convex line section (7) of the regular or irregular distribution in the anticorrosive coat of described steel strand wires (4) outside, the shape of this convex line section cross section can be circular or square.

6, the anticorrosive steel strand of band anti-skid structure according to claim 2, it is characterized in that: steel strand wires central hair (1) and limit silk (2) all around and the anti-corrosion material of filling in the space of twisted (3) and the periphery that is coated in outermost layer limit silk (2) anti-corrosion material that forms anticorrosive coat (4) all are thermoplastic macromolecule materials, around steel strand wires central hair and Bian Si and the anti-corrosion material of filling in the space of twisted merge into an organic whole with the anti-corrosion material that the periphery that is coated in outermost layer limit silk forms anticorrosive coat.