CN105088949A - Steel strand inhaul cable filled or coated with polyurea protective material and manufacturing method of steel strand inhaul cable - Google Patents

Steel strand inhaul cable filled or coated with polyurea protective material and manufacturing method of steel strand inhaul cable Download PDF

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Publication number
CN105088949A
CN105088949A CN201510084332.7A CN201510084332A CN105088949A CN 105088949 A CN105088949 A CN 105088949A CN 201510084332 A CN201510084332 A CN 201510084332A CN 105088949 A CN105088949 A CN 105088949A
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CN
China
Prior art keywords
coated
guy
steel cable
polyurea
filling
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Pending
Application number
CN201510084332.7A
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Chinese (zh)
Inventor
覃巍巍
黄永玖
植磊
邹易清
宋强
闫磊
袁友
庞维林
高宁妥
邱敏
梁黎霞
邹全
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Liuzhou OVM Machinery Co Ltd
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Liuzhou OVM Machinery Co Ltd
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Application filed by Liuzhou OVM Machinery Co Ltd filed Critical Liuzhou OVM Machinery Co Ltd
Priority to CN201510084332.7A priority Critical patent/CN105088949A/en
Publication of CN105088949A publication Critical patent/CN105088949A/en
Pending legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D07B1/165—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber inlay
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
    • D07B1/141—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising liquid, pasty or powder agents, e.g. lubricants or anti-corrosive oils or greases
    • D07B1/144—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising liquid, pasty or powder agents, e.g. lubricants or anti-corrosive oils or greases for cables or cable components built-up from metal wires
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D07B1/162—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber enveloping sheathing
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2083—Jackets or coverings
    • D07B2201/2087—Jackets or coverings being of the coated type
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2083—Jackets or coverings
    • D07B2201/2088—Jackets or coverings having multiple layers
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/20—Organic high polymers
    • D07B2205/201—Polyolefins
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2501/00—Application field
    • D07B2501/20—Application field related to ropes or cables
    • D07B2501/2015—Construction industries
    • D07B2501/203—Bridges

Landscapes

  • Ropes Or Cables (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention relates to a steel strand inhaul cable filled or coated with a polyurea protective material. The steel strand inhaul cable comprises series steel strand inhaul cable bodies including the steel strand inhaul cable body Ia formed in a manner that gaps between n steel strands are filled with the polyurea protective material, the steel strand inhaul cable body Ib formed in a manner that the outer layer of the steel strand inhaul cable body Ia is coated with a polyurea protective coating and the like. A manufacturing method includes the steps that the n steel strands are pretreated, dried and filled with the polyurea protective material, a steel strand combination is molded through coalescence, and the steel strand inhaul cable body Ia filled or coated with the polyurea protective material is formed; and the series steel strand inhaul cable which has multiple protective functions is manufactured by the steel strand inhaul cable body Ia through one or more of the polyurea material coating process I, the wrapping and packaging process, the polyurea material coating process II and III, the extrusion molding process and the like. The method is simple and convenient; the manufactured steel strand inhaul cable is good in tension-resisting strength and flexibility, high in damping and good in ageing resistance, wear resistance and damping performance; the corrosion prevention capacity of the steel strand inhaul cable can be greatly improved, and the service life of the steel strand inhaul cable can be prolonged; and the n is larger than or equal to 1.

Description

A kind ofly fill or be coated with guy of twisted steel cable of polyurea protection material and preparation method thereof
Technical field
The present invention relates to a kind of drag-line and preparation method thereof, particularly a kind ofly fill or be coated with guy of twisted steel cable of polyurea protection material and preparation method thereof.
Background technology
Drag-line is the core component of cable-supported bridge and building, based on the bridge of engineering and reach 70 years the projected life of building even more than 100 years, and only have 20 years to 30 years the application life of current guy of twisted steel cable, cause cable-supported bridge and building in use to need repeatedly to change rope like this, and the cost of changing rope is high and affect use.Therefore as the unit block steel strand of guy of twisted steel cable, need new form of structure, guarantee its high-durability.
Steel strand are generally by central hair, limit silk twisted forms, the anticorrosive steel strand that oneself has at present generally has two kinds, the first is directly at steel strand outer coated one deck anticorrosive coat, the second is that after the central hair of composition steel strand is carried out preservative treatment respectively with each Gen Biansi, twisted becomes steel strand) or form combined anti-corrosion layer steel strand at steel strand skin coating PE layer again, namely anticorrosion with painting steel strand are one of them, existing anticorrosion with painting steel strand mainly epoxy coating strand at present, there are epoxy powder whole coating steel twisted wire and the overall application steel strand two kinds of appearance, the master operation of epoxy powder whole coating steel twisted wire preparation method is all launched by steel strand, steel strand are made to pass through spray equipment with open mode, through being heating and curing after carrying out application epoxy resin powder to the central hair under open mode and each Gen Biansi, cooling, again limit silk is tussled on central hair again.
Because epoxy resin is a kind of thermosetting polymer plastics, after thermosetting, hardness is high but toughness is poor, thus above-mentioned two kinds of epoxy coating strand products no matter its thick coating or thin, has common drawback:
1. coating easy to crack, come off, also easily produce pin hole, thus steel strand are easily corroded, thus affect the application life of steel strand;
2., because the coating of the overall application steel strand of appearance is thermosets epoxy resin, make the steel strand rigidity after application large, bendability is poor, and epoxy resin is applied for a long time and had aging phenomenon, and its anti-wear performance is poor.
Zinc-plated in addition, the steel strand such as zinc-plated aluminium adopt the anti-corrosion method of sacrificial dielectric, are not subject to the impact of the local defects such as pin hole, but the easy loss of its coating, therefore its application life is not generally long especially.Therefore prestress wire anticorrosion is the significant problem to closing bridge engineering quality life-span, must strengthen truly feasible anti-corrosion measure, the massive losses brought to reduce prestress wire to lose efficacy in advance because corrosion causes for prestressing force steel strand.
Polyurea materials reacts by isocyanate component and amino-compound component a kind of elastomer substances generated, and is divided into pure polyureas and half polyureas, and the most basic characteristic of polyureas is exactly anticorrosion, waterproof, wear-resisting etc., is mostly used in space industry at present.
Therefore, how to be applied in the protection of guy of twisted steel cable by polyurea materials, making a kind of guy of twisted steel cable with polyurea protection material is the technical barrier that prestressing technique drag-line technical field people are badly in need of solving at present.
Summary of the invention
The object of the present invention is to provide a kind of guy of twisted steel cable of filling or being coated with polyurea protection material, this filling or the guy of twisted steel cable being coated with polyurea protection material utilize the excellent properties of polyurea materials, greatly can improve anticorrosion, the damping of guy of twisted steel cable, cling property, postpone drag-line application life, invention also provides this filling or be coated with the preparation method of guy of twisted steel cable of polyurea protection material.
For solving the problem, the technical solution used in the present invention is: a kind of guy of twisted steel cable of filling or being coated with polyurea protection material, comprise the steel strand assembly that n root steel strand are formed, described single steel strand is by 1 central hair, m Gen Biansi twisted forms, comprise the plain bar twisted wire that is made up of bright steel wire or be attached with epoxy coating by the periphery at bright steel wire, galvanizing coating, plastic coating, anticorrosion grease coating, the anticorrosive steel strand that the surface attachment coating of oiliness wax or the coat of metal or the anticorrosion steel wire of coating are formed, below be referred to as steel strand, it is characterized in that: this filling or the guy of twisted steel cable being coated with polyurea protection material are the filling that gap-fill has polyurea materials to form between n root steel strand or guy of twisted steel cable I a being coated with polyurea protection material, described polyurea materials is pure polyurea materials or half polyurea materials, 3≤m≤6, m is integer, and n is more than or equal to the integer that 1 is less than or equal to 1000.
Its further technical scheme is: this filling or the guy of twisted steel cable being coated with polyurea protection material are coated with the filling that one deck polyurea protection coating I is formed or guy of twisted steel cable I b being coated with polyurea protection material at the outermost layer of the steel strand assembly of guy of twisted steel cable I a filling or be coated with polyurea protection material.
Its further technical scheme be: this filling or the guy of twisted steel cable being coated with polyurea protection material have one to be wrapped the filling that band is formed or guy of twisted steel cable I a0, I b0 that are coated with polyurea protection material at the outermost layer of steel strand assembly of guy of twisted steel cable I b filled or be coated with guy of twisted steel cable I a of polyurea protection material or filling or be coated with polyurea protection material.
Further: this filling or the guy of twisted steel cable being coated with polyurea protection material are coated with filling or guy of twisted steel cable I a0c being coated with polyurea protection material or filling that polyurea protection coating II forms at the skin of the band that is wrapped of guy of twisted steel cable I a0 filling or be coated with polyurea protection material, I b0 or are coated with guy of twisted steel cable I b0c of polyurea protection material.
Its again further technical scheme be: this filling or be coated with polyurea protection material guy of twisted steel cable skin or by an individual layer HDPE sheath or the filling be made up of the double-deck HDPE sheath be made up of internal layer HDPE sheath and outer HDPE sheath or the guy of twisted steel cable being coated with polyurea protection material, comprising:
1. fill or be coated with polyurea protection material guy of twisted steel cable I a steel strand assembly skin or be coated with one deck polyurea protection coating I filling or be coated with polyurea protection material guy of twisted steel cable I b steel strand assembly skin or by an individual layer HDPE sheath or by the double-deck HDPE sheath be made up of internal layer HDPE sheath and outer HDPE sheath, the skin of formation has the filling of an individual layer HDPE sheath or is coated with guy of twisted steel cable I a1, I b1 of polyurea protection material; Or the skin of steel strand assembly has the filling of double-deck HDPE sheath or is coated with guy of twisted steel cable I a2, I b2 of polyurea protection material.
2. the band that is wrapped is outer be coated with polyurea protection coating II filling or be coated with guy of twisted steel cable I a0c of polyurea protection material, the band that is wrapped of I b0c skin or had the filling of individual layer HDPE sheath by an individual layer HDPE sheath or the skin that is made up of the double-deck HDPE sheath be made up of internal layer HDPE sheath and outer HDPE sheath or be coated with guy of twisted steel cable I a0c1, I b0c1 of polyurea protection material; Or the skin of steel strand assembly has the filling of double-deck HDPE sheath or is coated with guy of twisted steel cable I a0c2 or I b0c2 of polyurea protection material.
Its more further technical scheme be: at the individual layer HDPE sheath of the guy of twisted steel cable filling or be coated with polyurea protection material, the outer or outer HDPE sheath skin of double-deck HDPE sheath is also coated with one deck polyurea protection coating III formation and has the filling of multiple protective layer or be coated with the guy of twisted steel cable of polyurea protection material, comprising:
1. skin have the filling of an individual layer HDPE sheath or be coated with guy of twisted steel cable I a1 of polyurea protection material, the individual layer HDPE sheath skin of I b1 is also coated with filling that one deck polyurea protection coating III forms or be coated with guy of twisted steel cable I a1d, I b1d of polyurea protection material;
Or the skin of steel strand assembly have the filling of double-deck HDPE sheath or be coated with guy of twisted steel cable I a2 of polyurea protection material, the outer HDPE sheath skin of the double-deck HDPE sheath of I b2 is also coated with the filling that one deck polyurea protection coating III is formed or guy of twisted steel cable I a2d, I b2d that are coated with polyurea protection material.
2. outer have the filling of individual layer HDPE sheath or be coated with polyurea protection material guy of twisted steel cable I a0c1, I b0c1 individual layer HDPE sheath skin be also coated with the filling that one deck polyurea protection coating III is formed or guy of twisted steel cable I a0c1d, I b0c1d that are coated with polyurea protection material;
Or the skin of steel strand assembly have the filling of double-deck HDPE sheath or be coated with guy of twisted steel cable I a0c2 of polyurea protection material, the outer HDPE sheath skin of I b0c2 is also coated with the filling that one deck polyurea protection coating III is formed or guy of twisted steel cable I a0c2d, I b0c2d that are coated with polyurea protection material.
Another relevant technical scheme is: the filling that the present invention is above-mentioned or be coated with the preparation method of guy of twisted steel cable of polyurea protection material, described single steel strand is formed by 1 central hair, m Gen Biansi twisted, comprises the anticorrosive steel strand that the plain bar twisted wire be made up of bright steel wire or the anticorrosion steel wire of the surface attachment coating or coating that are attached with epoxy coating, galvanizing coating, plastic coating, anticorrosion grease coating, oiliness wax or the coat of metal by the periphery at bright steel wire are formed; It is characterized in that: the preparation method of this filling or the guy of twisted steel cable that is coated with polyurea protection material is that after n root steel strand are carried out pretreatment, drying, one-tenth dish, sub-wire, filling polyurea materials, coalescence is molded into steel strand assembly, and between being formed in the middle part of n root steel strand, gap-fill has the filling of polyurea materials or is coated with guy of twisted steel cable I a of polyurea protection material; Its key step comprises:
A, pretreatment
A1: close inspection is carried out for raw steel twisted wire, the pollutants such as oil, fat, paint and its external surface does not have, are explained the deep bid to steel strand by draw drum;
A2: surfacing: adopt phosphoric acid and ultrasonic wave to process steel strand surface, remove the greasy dirt of steel strand surface, dust, rusty stain, and evenly do not allow corrosion-prone grey phosphating coat at single steel strand Surface Creation one deck;
B: dry: heat drying to be carried out to steel strand, removes surperficial moisture content;
C: one-tenth dish: qualified steel strand carry out constant speed traction through caterpillar tractor, rolls in disk storage line by deposit equipment;
D: sub-wire: several one-tenth dishes steel strand are well placed on several draw drums respectively, steel strand pull out by draw drum and penetrates a point guide frame, point guide frame there is the hole corresponding to steel strand hexagonal array, enter in the disk storage line of guy of twisted steel cable strand streamline processed;
E: fill polyurea materials: namely one of in the following manner carry out coating type filling:
1. Extrusion Coating is filled: pretreated steel strand are passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray filling: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on pretreated steel strand;
3. soak pumping painting to fill: pretreated steel strand are immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way is filled: utilize machine brushing to make polyurea materials evenly be coated on pretreated steel strand;
F: coalescence is molded into steel strand assembly: by between steel strand, be filled with polyurea coating steel strand by many composing types device shaping for steel strand coalescence; Each shaped device is made up of 2 groups of 3 rolling wheels being mutually 120o angle; By regulating relative position and the thrust of each rolling wheel, make some steel strand strand integers be regular hexagon, in strand, each steel strand abut against each other, and make polyurea materials fully be filled in steel strand strand gap; The span of m is: 3≤n≤6, and m is integer, n be more than or equal to 1 integer, described polyurea materials is pure polyurea materials or half polyurea materials.
The further technical scheme of preparation method of described filling or the guy of twisted steel cable that is coated with polyurea protection material is: by the filling of producing through above-mentioned A-F step or be coated with polyurea protection material guy of twisted steel cable I a again through G: polyurea materials coating operation I: namely one of in the following manner:
1. Extrusion Coating: guy of twisted steel cable I a is passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on guy of twisted steel cable I a;
3. pumping painting is soaked: guy of twisted steel cable I a is immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly be coated on guy of twisted steel cable I a;
The outermost layer of steel strand assembly of guy of twisted steel cable I a making filling or be coated with polyurea protection material applies one deck polyurea protection coating I; Make guy of twisted steel cable I b filling or be coated with polyurea protection material.
Described a kind of further technical scheme of filling or being coated with the preparation method of the guy of twisted steel cable of polyurea protection material is: the method is that the filling made through above-mentioned A-G step or guy of twisted steel cable I b that is coated with polyurea protection material are maybe passed through H by the filling made through above-mentioned A-F step or guy of twisted steel cable I a that is coated with polyurea protection material again: be wrapped operation, the one deck that is wrapped in the periphery of steel strand assembly is wrapped band, forms guy of twisted steel cable I a0 or I b0 that fill or be coated with polyurea protection material.
Described a kind of preparation method of filling or being coated with the guy of twisted steel cable of polyurea protection material again further technical scheme be: the filling just made through above-mentioned A-H step or be coated with polyurea protection material guy of twisted steel cable I a0, I b0 again through I: polyurea materials coating operation II, namely one of in the following manner:
1. Extrusion Coating: guy of twisted steel cable I a0 or I b0 is passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on guy of twisted steel cable I a0 or I b0;
3. pumping painting is soaked: guy of twisted steel cable I a0 or I b0 is immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly bond on guy of twisted steel cable I a0 or I b0;
Make guy of twisted steel cable I a0 or I b0 outer surface attachment polyurea coating II; Form guy of twisted steel cable I a0c or I b0c that fill or be coated with polyurea protection material.
Described a kind of preparation method of filling or being coated with the guy of twisted steel cable of polyurea protection material more further technical scheme be: the filling middle part made through above-mentioned A-F step being filled with polyurea materials or guy of twisted steel cable I a being coated with polyurea protection material and be coated with the filling that one deck polyurea protection coating I forms or guy of twisted steel cable I b being coated with polyurea protection material through the outermost layer that above-mentioned A-G step makes and overlap extrusion molding operation I by J1:PE again or overlap extrusion molding operation I by J1:PE successively and J2:PE overlaps extrusion molding operation II; Be made into the outer filling that is made up of an individual layer HDPE sheath or guy of twisted steel cable I a1, I b1 that are coated with polyurea protection material or the filling be made up of the double-deck HDPE sheath be made up of internal layer HDPE sheath and outer HDPE sheath or guy of twisted steel cable I a2, I b2 that are coated with polyurea protection material.
Described a kind of preparation method of filling or being coated with the guy of twisted steel cable of polyurea protection material more further technical scheme or: the filling made through above-mentioned A-I step or guy of twisted steel cable I a0c, I b0c that are coated with polyurea protection material are overlapped extrusion molding operation I by J1:PE again or overlap extrusion molding operation I by J1:PE successively and J2:PE overlaps extrusion molding operation II; Being made into skin has the filling be made up of an individual layer HDPE sheath or guy of twisted steel cable I a0c1, I b0c1 or the skin being coated with polyurea protection material have the filling of internal layer HDPE sheath and the double-deck HDPE sheath of outer HDPE sheath or are coated with guy of twisted steel cable I a0c2 or I b0c2 of polyurea protection material.
Described a kind of preparation method of filling or being coated with the guy of twisted steel cable of polyurea protection material more further technical scheme or: be by through above-mentioned J1 or J1, the skin that J2 step makes has the filling be made up of an individual layer HDPE sheath or guy of twisted steel cable I a1 being coated with polyurea protection material, I b1, I a0c1 or I b0c1, or skin has the filling of internal layer HDPE sheath and the double-deck HDPE sheath of outer HDPE sheath or is coated with guy of twisted steel cable I a2 or I b2 of polyurea protection material, I a0c2 or I b0c2 is again through K: polyurea materials coating operation III: namely one of in the following manner:
1. Extrusion Coating: guy of twisted steel cable I a1, I b1, I a0c1, I b0c1, I a2, I b2, I a0c2 or I b0c2 are passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on guy of twisted steel cable I a1, I b1, I a0c1, I b0c1, I a2, I b2, I a0c2 or I b0c2;
3. pumping painting is soaked: guy of twisted steel cable I a1, I b1, I a0c1, I b0c1, I a2, I b2, I a0c2 or I b0c2 are immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly be coated on guy of twisted steel cable I a1, I b1, I a0c1, I b0c1, I a2, I b2, I a0c2 or I b0c2;
Be formed in individual layer HDPE sheath skin coating one deck polyurea protection coating III formation there is the filling of multiple protective structure or be coated with guy of twisted steel cable I a1d, I b1d, I a0c1d or I b0c1d of polyurea protection material; Or the outer HDPE sheath skin of double-deck HDPE sheath is coated with the filling that one deck polyurea protection coating III is formed or guy of twisted steel cable I a2d, I b2d, I a0c2d or I b0c2d that are coated with polyurea protection material.
Owing to taking above technical scheme, the present invention a kind of fills or is coated with guy of twisted steel cable of polyurea protection material and preparation method thereof and have following characteristics and beneficial effect:
1. greatly can improve anticorrosion, the damping of guy of twisted steel cable, cling property, extend guy of twisted steel cable application life.
Because the filling of the present invention or the guy of twisted steel cable that is coated with polyurea protection material are the steel strand assemblys be made up of many steel strand, have following three kinds of primary structure forms, between each plain bar twisted wire of n root steel strand, between gap or n root anticorrosive steel strand, gap-fill has polyurea materials to form guy of twisted steel cable I a filling or be coated with polyurea protection material, the filling that one deck polyurea protection coating is formed or guy of twisted steel cable I b being coated with polyurea protection material is coated with at the outermost layer of steel strand assembly, or the outermost layer of steel strand assembly have one be wrapped band, the band that is wrapped skin be coated with polyurea protection coating II and form guy of twisted steel cable I b0c filling or be coated with guy of twisted steel cable I a0c of polyurea protection material or filling or be coated with polyurea protection material, again by the filling of these three kinds of structures or be coated with polyurea protection material guy of twisted steel cable based on, at the skin of steel strand assembly or by an individual layer HDPE sheath or by the double-deck HDPE sheath be made up of internal layer HDPE sheath and outer HDPE sheath, or outer there is the filling of individual layer HDPE sheath or be coated with the individual layer of guy of twisted steel cable of polyurea protection material or the skin of double-deck HDPE sheath is also coated with the guy of twisted steel cable that one deck polyurea protection coating III formation has the band polyurea protection coating of multiple protective forming, because polyurea materials has excellent abrasion resistance, impact resistance and damping property, be coated on the steel strand surface of guy of twisted steel cable matrix, its coating is continuous, fine and close, can accomplish without seam, free of pinholes, moisture content in isolated air and the infiltration of oxygen, the epoxy coating that steel strand and steel strand surface are attached with can be protected, plastic coating or anticorrosion grease coating not easily aging, the easy loss of galvanizing coating can be slowed down, be subject to the impact of the local defects such as pin hole, greatly improve the antiseptic power of such guy of twisted steel cable, and increase its anti-wear performance, extend the application life of guy of twisted steel cable, simultaneously polyurea materials has excellent tensile strength, the characteristic such as ageing-resistant, wear-resistant, the damage caused because constructing operation is improper in the manufacturing and installation process can be reduced, not easily produce cracking, obscission, greatly improve the antiseptic power of guy of twisted steel cable, increase the service life.
2. between compact conformation, steel strand, frictional force is large, strengthens its cling property, and fatigue resistance improves:
The filling of the present invention or be coated with in the steel strand outmost surface of guy of twisted steel cable of polyurea protection material and gap and all apply or be filled with polyurea materials, because polyurea materials has the physical property of high abrasion, therefore, polyurea coating need not be very thick, when they are formed presstressed reinforcing steel, can in regular hexagon or the arrangement of unfilled corner Hexagonal close or the arrangement of other forms between each steel strand, compact conformation, the frictional force of guy of twisted steel cable can be strengthened, strengthen its cling property; More be conducive to using under the operating mode of Sarasota both sides by out-of-balance force at bridge cable.
3. the present invention can improve the performance of existing coating or coated steel twisted wire, thus also greatly improves the antiseptic power of guy of twisted steel cable, and increases its abrasion resistance, extends the application life of guy of twisted steel cable.
4. make simple and convenient, technological transformation cost is low:
The filling making the present invention or the guy of twisted steel cable being coated with polyurea protection material need not change existing guy of twisted steel cable production technology, only at the plain bar twisted wire be made up of bright steel wire made or epoxy coating need be attached with by the periphery at bright steel wire, galvanizing coating, plastic coating, anticorrosion grease coating, on the basis of the anticorrosive steel strand that the surface attachment coating of oiliness wax or the coat of metal or the anticorrosion steel wire of coating are formed, increase filling or the coating operation of polyurea materials several times again: heated by particulate polyurea good for proportioning by extruding machine, by steel strand or coalescence shaping after steel strand assembly by the hot-extrudable polyurea materials of extruding machine or professional equipment spraying, gap-fill between the n root steel strand assembly of formation guy of twisted steel cable is made to have polyurea materials or adhere to one deck polyurea coating in steel strand assembly periphery, the skin being formed in n root plain bar twisted wire or anticorrosive steel strand assembly has the filling of polyurea protection material or is coated with guy of twisted steel cable I a or I b of polyurea protection material, again based on guy of twisted steel cable I a filled or be coated with polyurea protection material or I b, again through being wrapped operation, polyurea materials coating operation II, extrusion molding, a step among the operations such as polyurea materials coating operation III or multi-step, make the series with multiple protective layer and fill or be coated with the guy of twisted steel cable of polyurea protection material.
5. preparation method is reasonable, solves and how to be applied in the protection of guy of twisted steel cable by polyurea materials, make a kind of technical barrier of the guy of twisted steel cable with polyurea protection coating;
Mode at present for brushing polyureas is that manual brushing and equipment spray, the scope of application is broader place operation, because the external form profile of steel strand is less, manual brushing easily produces and brushes evenly uneven and sagging phenomenon, and conventional equipment spraying equipment is larger, projected area is comparatively large, and comparatively large to the waste of spraying individual wire polyurea materials, more than 90% waste of material falls.Due to polyureas film forming speed quickly, if manual operations is improper, spraying is grasped and inaccurate is waited problems such as then easily causing coating became uneven, apparent out-of-flatness, aberration large.If construction experience lacks, select base treatment agent improper, when basic unit does not reach construction requirement, the phenomenon such as very easily cause polyurea coating foaming, pinprick, layering, bonding loosely.According to above painting way not foot phenomenon, polyurea materials is coated on guy of twisted steel cable by the coated form extruded or spray by the inventive method, and the concrete grammar of coating is: by the assembly of guy of twisted steel cable one of in the following manner:
1. Extrusion Coating: by guy of twisted steel cable respectively by the hot-extrudable polyurea materials of extrusion moulding type equipment; By extrusion moulding type equipment, polyurea materials particle good for proportioning is heated, polyurea materials is fully reacted under extrusion moulding type equipment molten condition, guy of twisted steel cable is passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on guy of twisted steel cable; Emitted dose is controlled by machine nozzle, be extruded onto Steel Wire Surface uniformly, can effectively control polyureas thick layer, can according to the feature of steel strand small volume, specialized designs researches and develops spraying equipment that is ring-like or little hole nozzle, on the production line of streamline, even application is in Steel Wire Surface, reduces the waste rate of material:
3. pumping painting is soaked: be immersed in carbamide paint by guy of twisted steel cable by pulling equipment, by outlet ring-type shaping structures after soaking; By pulling equipment drag-line, steel wire and guy of twisted steel cable are immersed in carbamide paint, by outlet ring-type shaping structures after making it soak, can are evenly coated on guy of twisted steel cable;
4. machine painting way: polyurea materials is brushed on guy of twisted steel cable by machine; Utilize machinery equipment automation brushing function that polyurea materials is evenly coated on steel wire and guy of twisted steel cable.
In the market without the spraying method occurred by extrusion moulding type equipment Extrusion Coating, the spraying of ring-like or aperture, the mode of soaking pumping painting or machine brushing, the change of spraying method, the guy of twisted steel cable of small volume is not only controlled accurately to the thickness of polyureas, and stop the waste of material.
Below, in conjunction with the accompanying drawings and embodiments a kind of technical characteristic of filling or being coated with the guy of twisted steel cable of polyurea protection material and preparation method thereof of the present invention is further described.
Accompanying drawing explanation
Fig. 1-1 ~ Fig. 1-5 be the embodiment of the present invention one in the middle part of n root steel strand, be filled with the filling that polyurea materials is formed or the structural representation of guy of twisted steel cable being coated with polyurea protection material:
Fig. 1-1: be filled with the filling that polyurea materials is formed or guy of twisted steel cable I a being coated with polyurea protection material at the middle part that steel strand are formed;
Fig. 1-2: have the filling of an individual layer HDPE sheath formation at the skin of steel strand assembly or be coated with guy of twisted steel cable I a1 of polyurea protection material;
Fig. 1-3: the filling having double-deck HDPE sheath to form at the skin of steel strand assembly or guy of twisted steel cable I a2 being coated with polyurea protection material;
Fig. 1-4: be coated with the filling that one deck polyurea protection coating III is formed or guy of twisted steel cable I a1d being coated with polyurea protection material outside individual layer HDPE sheath;
Fig. 1-5: be also coated with the filling that one deck polyurea protection coating III is formed or guy of twisted steel cable I a2d being coated with polyurea protection material at the outer HDPE sheath skin of double-deck HDPE sheath.
The structural representation of Fig. 2-1 ~ Fig. 2-5 to be embodiment of the present invention two at the outermost layer of steel strand assembly the be coated with filling that one deck polyurea protection coating I forms or the guy of twisted steel cable being coated with polyurea protection material:
Fig. 2-1: be coated with the filling that one deck polyurea protection coating I is formed or guy of twisted steel cable I b being coated with polyurea protection material at guy of twisted steel cable I a skin;
Fig. 2-2: have the filling of an individual layer HDPE sheath formation at the skin of guy of twisted steel cable I b or be coated with guy of twisted steel cable I b1 of polyurea protection material;
Fig. 2-3: the filling having double-deck HDPE sheath to form at the skin of steel strand assembly or guy of twisted steel cable I b2 being coated with polyurea protection material;
Fig. 2-4: be coated with the filling that one deck polyurea protection coating III is formed or guy of twisted steel cable I b1d being coated with polyurea protection material outside individual layer HDPE sheath;
Fig. 2-5: the outer HDPE sheath skin of double-deck HDPE sheath is also coated with the filling that one deck polyurea protection coating III is formed or guy of twisted steel cable I b2d being coated with polyurea protection material.
Fig. 3-1 ~ Fig. 3-6 is that the band of the embodiment of the present invention three is wrapped the structural representation of band or the filling being coated with one deck polyurea protection coating II b or having individual layer HDPE sheath or double-deck HDPE sheath to form at the skin of the band that is wrapped at the skin of the band that is wrapped or the guy of twisted steel cable that is coated with polyurea protection material:
Fig. 3-1: have the band that is wrapped to form the structural representation of guy of twisted steel cable I a0 filling or be coated with polyurea protection material outside guy of twisted steel cable I a filled or be coated with polyurea protection material;
Fig. 3-2: guy of twisted steel cable I a0 is wrapped the outer structural representation being coated with the filling that polyurea protection coating II b forms or guy of twisted steel cable I a0c being coated with polyurea protection material of band;
The structural representation of Fig. 3-3: the guy of twisted steel cable I a0c outer filling having an individual layer HDPE sheath to form or guy of twisted steel cable I a0c1 being coated with polyurea protection material;
The structural representation of Fig. 3-4: the guy of twisted steel cable I a0c outer filling having double-deck HDPE sheath to form or guy of twisted steel cable I a0c2 being coated with polyurea protection material;
The individual layer HDPE sheath skin of Fig. 3-5: guy of twisted steel cable I a0c1 is coated with the filling that polyurea protection coating III is formed or the structural representation of guy of twisted steel cable I a0c1d being coated with polyurea protection material;
The outer HDPE sheath skin of the double-deck HDPE sheath of Fig. 3-6: guy of twisted steel cable I a0c2 is coated with III filling formed of polyurea protection coating or is coated with the structural representation of guy of twisted steel cable I a0c2d of polyurea protection material.
Fig. 4-1 ~ Fig. 4-6 is that the band of the embodiment of the present invention four is wrapped the structural representation of band or the filling being coated with one deck polyurea protection coating II b or having individual layer HDPE sheath or double-deck HDPE sheath to form at the skin of the band that is wrapped at the skin of the band that is wrapped or the guy of twisted steel cable that is coated with polyurea protection material:
Fig. 4-1: have one to be wrapped outside guy of twisted steel cable I b filling or be coated with polyurea protection material and be with the steel strand forming filling or be coated with polyurea protection material to draw the structural representation of I b0;
Fig. 4-2: guy of twisted steel cable I b0 is wrapped the outer structural representation being coated with the filling that polyurea protection coating II b forms or guy of twisted steel cable I b0c being coated with polyurea protection material of band;
The structural representation of Fig. 4-3: the guy of twisted steel cable I b0c outer filling having an individual layer HDPE sheath to form or guy of twisted steel cable I b0c1 being coated with polyurea protection material;
The structural representation of Fig. 4-4: the guy of twisted steel cable I b0c outer filling having double-deck HDPE sheath to form or guy of twisted steel cable I b0c2 being coated with polyurea protection material;
The individual layer HDPE sheath skin of Fig. 4-5: guy of twisted steel cable I I b0c1 is coated with the filling that polyurea protection coating III is formed or the structural representation of guy of twisted steel cable I b0c1d being coated with polyurea protection material;
The outer HDPE sheath skin of the double-deck HDPE sheath of Fig. 4-6: guy of twisted steel cable I b0c2 is coated with III filling formed of polyurea protection coating or is coated with the structural representation of guy of twisted steel cable I b0c2d of polyurea protection material.
In figure:
There are the steel strand of adhering coating or coating on the single plain bar twisted wire of 1-or surface; 2-is wrapped band; 4-internal layer HDPE sheath; The outer HDPE sheath of 5-;
31a-polyurea materials, 31b-polyurea protection coating I, 31c-polyurea protection coating II, 31d-polyurea protection coating III;
6a-fills or is coated with guy of twisted steel cable I a of polyurea protection material;
6a1-fills or is coated with guy of twisted steel cable I a1 of polyurea protection material;
6a2-fills or is coated with guy of twisted steel cable I a2 of polyurea protection material;
6a1d-fills or is coated with guy of twisted steel cable I a1d of polyurea protection material;
6a2d-fills or is coated with guy of twisted steel cable I a2d of polyurea protection material.
6b-fills or is coated with guy of twisted steel cable I b of polyurea protection material;
6b1-fills or is coated with guy of twisted steel cable I b1 of polyurea protection material;
6b2-fills or is coated with guy of twisted steel cable I b2 of polyurea protection material;
6b1d-fills or is coated with guy of twisted steel cable I b1d of polyurea protection material;
6b2d-fills or is coated with guy of twisted steel cable I b2d of polyurea protection material.
6a0-fills or is coated with guy of twisted steel cable I a0 of polyurea protection material;
6a0c-fills or is coated with guy of twisted steel cable I a0c of polyurea protection material;
6a0c1-fills or is coated with guy of twisted steel cable I a0c1 of polyurea protection material;
6a0c2-fills or is coated with guy of twisted steel cable I a0c2 of polyurea protection material;
6a0c1d-fills or is coated with guy of twisted steel cable I a0c1d of polyurea protection material;
6a0c2d-fills or is coated with guy of twisted steel cable I a0c2d of polyurea protection material.
6b0-fills or is coated with guy of twisted steel cable I b0 of polyurea protection material;
6b0c-fills or is coated with guy of twisted steel cable I b0c of polyurea protection material;
6b0c1-fills or is coated with guy of twisted steel cable I b0c1 of polyurea protection material;
6b0c2-fills or is coated with guy of twisted steel cable I b0c2 of polyurea protection material;
6b0c1d-fills or is coated with guy of twisted steel cable I b0c1d of polyurea protection material;
6b0c2d-fills or is coated with guy of twisted steel cable I b0c2d of polyurea protection material.
Detailed description of the invention
Embodiment one:
A kind of in n root steel strand middle part be filled with the filling of polyurea materials or be coated with the guy of twisted steel cable of polyurea protection material:
As Fig. 1-1, the filling being filled with polyurea materials in the middle part of this or the guy of twisted steel cable being coated with polyurea protection material comprise the steel strand assembly that 7 steel strand are formed, in 7 steel strand, between each steel strand in middle part, gap-fill has polyurea materials 31a, forms the filling of the present invention or is coated with guy of twisted steel cable I a (see Fig. 1-1) of polyurea protection material.
The anticorrosive steel strand that the anticorrosion steel wire of described single steel strand or the plain bar twisted wire be made up of bright steel wire or the surface attachment coating or coating that are attached with epoxy coating, galvanizing coating, plastic coating, anticorrosion grease coating, oiliness wax or the coat of metal by the periphery at bright steel wire is formed, is below referred to as steel strand.
One as the embodiment of the present invention converts, the radical n forming the steel strand 1 of the guy of twisted steel cable filling or be coated with polyurea protection material can increase or reduce according to actual needs, be at least 1, many be 3-139 root, the span of general n is: 1≤n≤1000.
Single steel strand described in Fig. 1-1 is formed by 1 central hair, 6 Gen Biansi twisteds, one as the embodiment of the present invention converts, and the radical m of the limit silk of steel strand can increase or reduce, and is at least 3, many be 6, the span of general m is: 3≤m≤6.
As another conversion of the embodiment of the present invention, the skin of described filling or guy of twisted steel cable I a that is coated with polyurea protection material has the monolayer polyethylene sheath 4 be made up of HDPE sheath 4, form fill or be coated with polyurea protection material guy of twisted steel cable I a1(see Fig. 1-2) or by the double-deck HDPE sheath be made up of internal layer HDPE sheath 4 and outer HDPE sheath 5 form fill or be coated with polyurea protection material guy of twisted steel cable I a2(see Fig. 1-3).
As another conversion of the embodiment of the present invention, this filling or individual layer HDPE sheath 4 outer HDPE sheath 5 skin that is outer or double-deck HDPE sheath of guy of twisted steel cable I a1 being coated with polyurea protection material be also coated with one deck polyurea protection coating III 31d form fill or be coated with polyurea protection material guy of twisted steel cable I a1d(see Fig. 1-4) and fill or be coated with polyurea protection material guy of twisted steel cable I a2d(see Fig. 1-5).
Embodiment two:
A kind of outermost layer at steel strand assembly is coated with the filling that one deck polyurea protection coating I is formed or the guy of twisted steel cable being coated with polyurea protection material:
As shown in Fig. 2-1, the periphery of steel strand assembly of the filling that a kind of middle part described in embodiment one is filled with polyurea materials or guy of twisted steel cable I a that is coated with polyurea protection material is coated with one deck polyurea protection coating I 31b, thus form fill or be coated with polyurea protection material guy of twisted steel cable I b(see Fig. 2-1).
One as the embodiment of the present invention converts, described filling or to be coated with guy of twisted steel cable I b of polyurea protection material outer by individual layer HDPE sheath 4 or by the double-deck HDPE pipe box be made up of internal layer HDPE sheath 4 and outer HDPE sheath 5, form fill or be coated with polyurea protection material guy of twisted steel cable I b1(see Fig. 2-2) or fill or be coated with polyurea protection material guy of twisted steel cable I b2(see Fig. 2-3).
As another conversion of the embodiment of the present invention, this filling or be coated with guy of twisted steel cable I b1 of polyurea protection material, individual layer HDPE sheath 4 outer HDPE sheath 5 skin that is outer or double-deck HDPE sheath of I b2 be also coated with one deck polyurea protection coating III 31d form fill or be coated with polyurea protection material guy of twisted steel cable I b1d(see Fig. 2-4) and fill or be coated with polyurea protection material guy of twisted steel cable I b2d(see Fig. 2-5).
Embodiment three:
The filling with multiple protective layer that one deck polyurea protection coating II b is formed or the guy of twisted steel cable being coated with polyurea protection material is coated with at the skin be with that is wrapped of guy of twisted steel cable I a filling or be coated with polyurea protection material:
As shown in figure 3-1, the filling that a kind of middle part described in embodiment one is filled with polyurea materials or the periphery of steel strand assembly of guy of twisted steel cable I a being coated with polyurea protection material are also tied with one and are wrapped band 2, form fill or be coated with polyurea protection material guy of twisted steel cable I a0(see Fig. 3-1); Be coated with one deck polyurea protection coating II 31c at band 2 skin that is wrapped of guy of twisted steel cable I a0 filling or be coated with polyurea protection material again, guy of twisted steel cable I a0c(of polyurea protection material is filled or be coated with to formation see Fig. 3-2);
One as the embodiment of the present invention converts, described filling or be coated with polyurea protection material guy of twisted steel cable I a0c be wrapped that band is outer the individual layer HDPE sheath be made up of HDPE sheath 4, form fill or be coated with polyurea protection material guy of twisted steel cable I a0c1(see Fig. 3-3) or by the double-deck HDPE sheath be made up of internal layer HDPE sheath 4 and outer HDPE sheath 5 form fill or be coated with polyurea protection material guy of twisted steel cable I a0c2(see Fig. 3-4).
One as the embodiment of the present invention converts, this filling or guy of twisted steel cable I a0c1 individual layer HDPE sheath 4 skin being coated with polyurea protection material are also coated with one deck polyurea protection coating III 31d, form fill or be coated with polyurea protection material guy of twisted steel cable I a0c1d(see Fig. 3-5);
Or outer HDPE sheath 5 skin of guy of twisted steel cable I a0c2 that the skin of steel strand assembly has the filling of double-deck HDPE sheath or is coated with polyurea protection material is also coated with one deck polyurea protection coating III 31d, the filling of formation or be coated with polyurea protection material guy of twisted steel cable I a0c2d(see Fig. 3-6).
Embodiment four:
The filling with multiple protective layer that one deck polyurea protection coating II b is formed or the guy of twisted steel cable being coated with polyurea protection material is coated with at the skin be with that is wrapped of guy of twisted steel cable I b filling or be coated with polyurea protection material:
As shown in Fig. 4-1, the filling that a kind of middle part described in embodiment two is filled with polyurea materials or the periphery of steel strand assembly of guy of twisted steel cable I b being coated with polyurea protection material are also tied with one and are wrapped band 2, form guy of twisted steel cable I b0 filling or be coated with polyurea protection material; Be coated with one deck polyurea protection coating II 31c at band 2 skin that is wrapped of guy of twisted steel cable I b0 filling or be coated with polyurea protection material again, guy of twisted steel cable I b0c(of polyurea protection material is filled or be coated with to formation see Fig. 4-2);
One as the embodiment of the present invention converts, described filling or be coated with polyurea protection material guy of twisted steel cable I b0c be wrapped that band is outer the individual layer HDPE sheath be made up of HDPE sheath 4, form fill or be coated with polyurea protection material guy of twisted steel cable I b0c1(see Fig. 4-3) or by the double-deck HDPE sheath be made up of internal layer HDPE sheath 4 and outer HDPE sheath 5 form fill or be coated with polyurea protection material guy of twisted steel cable I b0c2(see Fig. 4-4).
As another conversion of the embodiment of the present invention, this filling or guy of twisted steel cable I b0c1 individual layer HDPE sheath 4 skin being coated with polyurea protection material are also coated with one deck polyurea protection coating III 31d, form the filling with multiple protective layer or guy of twisted steel cable I b0c1d(being coated with polyurea protection material see Fig. 4-5);
Or outer HDPE sheath 5 skin of guy of twisted steel cable I b0c2 that the skin of steel strand assembly has the filling of double-deck HDPE sheath or is coated with polyurea protection material is also coated with one deck polyurea protection coating III 31d, form have multiple protective layer filling or be coated with polyurea protection material guy of twisted steel cable I b0c2d(see Fig. 4-6).
Above-described embodiment one ~ embodiment four is only listed conventional several filling or is coated with the form of structure of guy of twisted steel cable of polyurea protection material, in the invention process process, can according to the needs of construction, to adopt described in " a kind of middle part is filled with the filling of polyurea materials or is coated with the guy of twisted steel cable of polyurea protection material " I a described in embodiment one or embodiment two that " a kind of outermost layer at steel strand assembly is coated with the filling that one deck polyurea protection coating I forms or guy of twisted steel cable I b being coated with polyurea protection material is basic structure, the band that is wrapped is being added outside again on these two kinds of basic structure bases, again in the band outer coating polyurea protection coating II that is wrapped, or outside by the individual layer HDPE sheath 4 be made up of HDPE sheath 4 or by the double-deck HDPE sheath be made up of internal layer HDPE sheath 4 and outer HDPE sheath 5 on two kinds of basic structure bases, and the individual layer HDPE sheath of the HDPE sheath 4 of the guy of twisted steel cable of this band polyurea protection coating outer HDPE sheath 5 skin that is outer or double-deck HDPE sheath is also coated with one deck polyurea protection coating III etc. formation various combination, has the filling of multiple protective structure or be coated with the guy of twisted steel cable of polyurea protection material, repeats no longer one by one herein.
Embodiment five
A kind of preparation method of filling or being coated with the guy of twisted steel cable of polyurea protection material, it is the preparation method of filling described in embodiment one or guy of twisted steel cable I a being coated with polyurea protection material, the preparation method of this filling or the guy of twisted steel cable that is coated with polyurea protection material is that after n root steel strand are carried out pretreatment, drying, one-tenth dish, sub-wire, filling polyurea materials, coalescence is molded into steel strand assembly, and between being formed in the middle part of n root steel strand, gap-fill has the filling of polyurea materials 31a or is coated with guy of twisted steel cable I a of polyurea protection material; Its key step comprises:
A, pretreatment:
A1: close inspection is carried out for raw steel twisted wire, the pollutants such as oil, fat, paint and its external surface does not have, are explained the deep bid to steel strand by draw drum;
A2: surfacing: adopt phosphoric acid and ultrasonic wave to process steel strand surface, remove the greasy dirt of steel strand surface, dust, rusty stain, and evenly do not allow corrosion-prone grey phosphating coat at single steel strand Surface Creation one deck;
B: dry: heat drying to be carried out to steel strand, removes surperficial moisture content;
C: one-tenth dish: qualified steel strand carry out constant speed traction through caterpillar tractor, rolls in disk storage line by deposit equipment;
D: sub-wire: several one-tenth dishes steel strand are well placed on several draw drums respectively, steel strand pull out by draw drum and penetrates a point guide frame, point guide frame there is the hole corresponding to steel strand hexagonal array, enter in the disk storage line of guy of twisted steel cable strand streamline processed;
E: fill polyurea materials: namely one of in the following manner carry out coating type filling:
1. Extrusion Coating is filled: pretreated steel strand are passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray filling: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on pretreated steel strand;
3. soak pumping painting to fill: pretreated steel strand are immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way is filled: utilize machine brushing to make polyurea materials evenly be coated on pretreated steel strand;
F: coalescence is molded into steel strand assembly: by between steel strand, be filled with polyurea coating steel strand by many composing types device shaping for steel strand coalescence; Each shaped device is made up of 2 groups of 3 rolling wheels being mutually 120o angle; By regulating relative position and the thrust of each rolling wheel, make some steel strand strand integers be regular hexagon, in strand, each steel strand abut against each other, and make polyurea materials 31a fully be filled in steel strand strand gap; To be formed in n root steel strand assembly gap-fill between each steel strand in middle part and to have polyurea materials 31a, filling or be coated with polyurea protection material guy of twisted steel cable I a(see Fig. 1-1), Fig. 1-1 is that the steel strand assembly of 7 steel strand compositions is formed.
One as the embodiment of the present invention converts, the radical n forming the steel strand 1 of the guy of twisted steel cable filling or be coated with polyurea protection material can increase or reduce according to actual needs, be at least 1, many be 3-139 root, the span of general n is: 1≤n≤1000.
N: one-tenth dish, packaging: the qualified guy of twisted steel cable with the band polyurea protection coating of compound protective coating through the traction of caterpillar tractor constant speed, and synchronously rolls into dish by twining dish machine, completes.
The anticorrosive steel strand that the anticorrosion steel wire of described single steel strand or the plain bar twisted wire be made up of bright steel wire or the surface attachment coating or coating that are attached with epoxy coating, galvanizing coating, plastic coating, anticorrosion grease coating, oiliness wax or the coat of metal by the periphery at bright steel wire is formed, is more than referred to as steel strand.
Embodiment six
Filling or be coated with the preparation method of guy of twisted steel cable for polyurea protection material, is the preparation method of filling described in embodiment two or guy of twisted steel cable I b being coated with polyurea protection material.
It is embodiment five method is made in n root steel strand assembly between each steel strand in middle part gap-fill have polyurea materials 31a to fill or be coated with polyurea protection material guy of twisted steel cable I 6a again through G: polyurea materials coating operation I: namely one of in the following manner:
1. Extrusion Coating: guy of twisted steel cable I a is passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on guy of twisted steel cable I a;
3. pumping painting is soaked: guy of twisted steel cable I a is immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly be coated on guy of twisted steel cable I a;
The outermost layer of steel strand assembly of guy of twisted steel cable I a making filling or be coated with polyurea protection material applies one deck polyurea protection coating I 31b; Make guy of twisted steel cable I b6b(that fills or be coated with polyurea protection material see accompanying drawing 2-1).
Embodiment seven:
Filling or be coated with guy of twisted steel cable I a of polyurea protection material, the skin of the band that is wrapped of I b is coated with the preparation method of the filling with multiple protective layer that one deck polyurea protection coating II b forms or the guy of twisted steel cable being coated with polyurea protection material:
The method is that the filling or guy of twisted steel cable I a being coated with polyurea protection material that embodiment one are made through above-mentioned A-F step or filling embodiment two made through above-mentioned A-G step or guy of twisted steel cable I b that is coated with polyurea protection material pass through H again: be wrapped operation, the one deck that is wrapped in the periphery of steel strand assembly is wrapped band, form fill or be coated with polyurea protection material guy of twisted steel cable I a0 or I b0(see Fig. 3-1, Fig. 4-1).
Described H: be wrapped in operation, be wrapped and be with as dextrorotation is wrapped, single overlays width is not less than bandwidth 1/3, and the layer that is wrapped is neat fine and close in damaged, and steel strand are without exposed phenomenon.
Again by the filling made through above-mentioned A-H step or be coated with polyurea protection material guy of twisted steel cable I a0, I b0 again through I: polyurea materials coating operation II, namely one of in the following manner:
1. Extrusion Coating: guy of twisted steel cable I a0 or I b0 is passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on guy of twisted steel cable I a0 or I b0;
3. pumping painting is soaked: guy of twisted steel cable I a0 or I b0 is immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly be coated on guy of twisted steel cable I a0 or I b0;
Make guy of twisted steel cable I a0 or I b0 outer surface attachment polyurea coating II 31c; Form and fill or be coated with guy of twisted steel cable I a0c of polyurea protection material or I b0c(see Fig. 3-2, Fig. 4-2).
Embodiment eight:
The filling made with embodiment five, embodiment six, embodiment seven or be coated with guy of twisted steel cable I a, I b of polyurea protection material, the preparation method of serial guy of twisted steel cable that I a0c or I b0c converts for basic structure, mainly comprise;
(1) outermost layer that the filling middle part that embodiment five makes being filled with polyurea materials or guy of twisted steel cable I a being coated with polyurea protection material and embodiment six make is coated with the filling that one deck polyurea protection coating I is formed or guy of twisted steel cable I b being coated with polyurea protection material, the filling that embodiment seven makes or be coated with guy of twisted steel cable I a0c of polyurea protection material or I b0c and overlap extrusion molding operation I by J1:PE again or overlap extrusion molding operation I by J1:PE successively and J2:PE overlaps extrusion molding operation II, described J1:PE overlaps extrusion molding operation I, the extrusion process that J2:PE overlaps extrusion molding operation II is: by high-density polyethylene resin through extruder, the effect of mouth mould, form sheath and be coated on guy of twisted steel cable I a filling or be coated with polyurea protection material, I b, outside I a0c or I b0c, be made into the filling that skin has an individual layer HDPE sheath 4 to form or guy of twisted steel cable I a1 being coated with polyurea protection material, I b1, I a0c1 or I b0c1(is see Fig. 1-2, Fig. 2-2, Fig. 3-3, Fig. 4-3), or the filling to be made up of the double-deck HDPE sheath be made up of internal layer HDPE sheath 4 and outer HDPE sheath 5 or guy of twisted steel cable I a2 being coated with polyurea protection material, I b2, I a0c2 or I b0c2(is see Fig. 1-3, Fig. 2-3, Fig. 3-4, Fig. 4-4).
(2) outermost layer has the filling of polyurea protection coating or is coated with the preparation method of guy of twisted steel cable of polyurea protection material:
The method is that the skin that the present embodiment () step makes is had the filling be made up of an individual layer HDPE sheath 4 or guy of twisted steel cable I a1, I b1, I a0c1 or I b0c1 that are coated with polyurea protection material, or skin has the filling of internal layer HDPE sheath 4 and the double-deck HDPE sheath of outer HDPE sheath 5 or is coated with guy of twisted steel cable I a2 of polyurea protection material or I b2, I a0c2 or I b0c2 again through K: polyurea materials coating operation III: namely one of in the following manner:
1. Extrusion Coating: by guy of twisted steel cable I a1, I b1, I a0c1, I b0c1, I a2, I b2, I a0c2 or I b0c2 be by the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on guy of twisted steel cable I a1, I b1, I a0c1, I b0c1, I a2, I b2, I a0c2 or I b0c2;
3. pumping painting is soaked: guy of twisted steel cable I a1, I b1, I a0c1, I b0c1, I a2, I b2, I a0c2 or I b0c2 are immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly be coated on guy of twisted steel cable I a1, I b1, I a0c1, I b0c1, I a2, I b2, I a0c2 or I b0c2;
Make it to form the filling with multiple protective structure or guy of twisted steel cable I a1d, I b1d that are coated with polyurea protection material, I a0c1d or I b0c1d(see Fig. 1-4, Fig. 2-4, Fig. 3-5, Fig. 4-5 at individual layer HDPE sheath skin coating one deck polyurea protection coating III 31d);
Or form filling in outer HDPE sheath skin coating one deck polyurea protection coating III of double-deck HDPE sheath or be coated with guy of twisted steel cable I a2d, I b2d of polyurea protection material, I a0c2d or I b0c2d(see Fig. 1-5, Fig. 2-5, Fig. 3-6, Fig. 4-6).
The embodiment of the present invention eight is only listed conventional several filling or is coated with the preparation method of guy of twisted steel cable of polyurea protection material; in actual implementation process; can according to the needs of construction; on the filling made in embodiment five, embodiment six or the basis being coated with guy of twisted steel cable I a of polyurea protection material, I b; select the combination that the above-mentioned operation that is wrapped, polyurea materials apply operation, PE overlaps one of extrusion molding operation or multiple operation as required; make the filling with multiple protective or the guy of twisted steel cable being coated with polyurea protection material, repeat no more herein.
The filling that above-mentioned each embodiment makes or the guy of twisted steel cable being coated with polyurea protection material finally need through becoming dish, packaging step: qualified filling or the guy of twisted steel cable being coated with polyurea protection material draw through caterpillar tractor constant speed, and synchronously roll into dish by twining dish machine, complete.
In the diagram of various embodiments of the present invention, described single steel strand is formed by 1 central hair, 6 Gen Biansi twisteds, one as the embodiment of the present invention converts, the radical m of the limit silk of steel strand can increase or reduce, be at least 3, many be 6, the span of general m is: 3≤m≤6.
In various embodiments of the present invention, the material of described polyurea protection coating is pure polyurea materials or half polyurea materials; Comprise following three types:
1) aromatic polyureas, this polyureas utilizes aromatic isocyanate (as MDI, liquefied mdi, PAPI etc.) and amino-polyether, amino chain extender to react to form, and has intensity high, the advantages such as price is more reasonable, be useful in anticorrosion, wear-resisting etc. material protection.
2) aliphatic polyurea; this polyureas utilizes aliphatic isocyanates (tripolymer, HMDI, TMXDI etc. as HDI, HDI) and amino-polyether, alicyclic ring amine chain extender to react to prepare; there is color inhibition, good anti-corrosion property energy, excellent unfading etc.; for the decoration finish paint of outdoor architecture, the sealer of aromatic polyureas coating also can be used as.
3) Polyaspartic Polyurea, this polyureas utilizes aliphatic isocyanates and polyaspartic ester reaction preparation, and the reaction speed of coating is adjustable, and gel time can from a few minutes by several hours not etc.Can be used in HTHP impacting type hybird environment, there is not easily foaming in low-temperature setting, coating not yellowing, solidification process, can thick painting construct, to advantages such as the adhesive power of ground are good.
The selection of carbamide paint is determined according to the needs of construction, and involved carbamide paint can be polyurea waterproof coating material, polyurea anti-corrosion coating, polyureas damping coating, polyureas surface coating, polyureas subbing, polyureas filling paint, polyureas wear-resistant paint, polyureas antiskid coating etc.
These are all the materials can bought on the market.
In various embodiments of the present invention; it is the HDPE sheath made for high density polyethylene (HDPE); one as the embodiment of the present invention converts; described HDPE sheath also can be the PE sheath that adopts common low density polyethylene (LDPE), medium density polyethylene to make or other be suitable for making the sheath that the material such as rubber of bridge cable sheath for building etc. makes; these are all substitute equivalents, are also the protection domains of this patent.

Claims (15)

1. fill or be coated with the guy of twisted steel cable of polyurea protection material for one kind, comprise the steel strand assembly that n root steel strand are formed, described single steel strand is by 1 central hair, m Gen Biansi twisted forms, comprise the plain bar twisted wire that is made up of bright steel wire or be attached with epoxy coating by the periphery at bright steel wire, galvanizing coating, plastic coating, anticorrosion grease coating, the anticorrosive steel strand that the surface attachment coating of oiliness wax or the coat of metal or the anticorrosion steel wire of coating are formed, below be referred to as steel strand, it is characterized in that: this filling or the guy of twisted steel cable being coated with polyurea protection material are the filling that gap-fill has polyurea materials (31a) to form between n root steel strand assembly or guy of twisted steel cable I a being coated with polyurea protection material, described polyurea materials is pure polyurea materials or half polyurea materials, 3≤m≤6, m is integer, and n is more than or equal to the integer that 1 is less than or equal to 1000.
2. a kind of guy of twisted steel cable of filling or being coated with polyurea protection material according to claim 1, is characterized in that: this filling or the guy of twisted steel cable being coated with polyurea protection material are coated with the filling that one deck polyurea protection coating I (31b) is formed or guy of twisted steel cable I b being coated with polyurea protection material at the outermost layer of the steel strand assembly of guy of twisted steel cable I a filling or be coated with polyurea protection material.
3. a kind of guy of twisted steel cable of filling or being coated with polyurea protection material according to claim 1 and 2, is characterized in that: this filling or the guy of twisted steel cable being coated with polyurea protection material have one to be wrapped the filling that band (2) is formed or guy of twisted steel cable I a0, I b0 that are coated with polyurea protection material at the outermost layer of steel strand assembly of guy of twisted steel cable I b filled or be coated with guy of twisted steel cable I a of polyurea protection material or filling or be coated with polyurea protection material.
4. a kind of guy of twisted steel cable of filling or being coated with polyurea protection material according to claim 3, is characterized in that: this filling or the guy of twisted steel cable being coated with polyurea protection material are coated with filling or guy of twisted steel cable I a0c being coated with polyurea protection material or filling that polyurea protection coating II (31c) forms at the skin of the band (2) that is wrapped or are coated with guy of twisted steel cable I b0c of polyurea protection material.
5. a kind of guy of twisted steel cable of filling or being coated with polyurea protection material according to claim 1 and 2, it is characterized in that: this filling or the guy of twisted steel cable being coated with polyurea protection material be fill or be coated with guy of twisted steel cable I a of polyurea protection material or filling or be coated with polyurea protection material guy of twisted steel cable I b steel strand assembly skin or by an individual layer HDPE sheath or by the double-deck HDPE sheath be made up of internal layer HDPE sheath and outer HDPE sheath, the skin formed has the filling of an individual layer HDPE sheath or is coated with guy of twisted steel cable I a1 of polyurea protection material, I b1, or the skin of steel strand assembly has the filling of double-deck HDPE sheath or is coated with guy of twisted steel cable I a2, I b2 of polyurea protection material.
6. a kind of guy of twisted steel cable of filling or being coated with polyurea protection material according to claim 4, it is characterized in that: this band that is wrapped is outer be coated with polyurea protection coating II filling or be coated with polyurea protection material guy of twisted steel cable the band (2) that is wrapped skin or have an individual layer HDPE sheath (4) or have the double-deck HDPE sheath be made up of internal layer HDPE sheath (4) and outer HDPE sheath (5), formation skin has the filling of individual layer HDPE sheath or is coated with guy of twisted steel cable I a0c1, I b0c1 of polyurea protection material; Or the skin of steel strand assembly has the filling of double-deck HDPE sheath or is coated with guy of twisted steel cable I a0c2 or I b0c2 of polyurea protection material.
7. a kind of guy of twisted steel cable of filling or being coated with polyurea protection material according to claim 5, is characterized in that: this filling or be coated with guy of twisted steel cable I a1 of polyurea protection material, I b1 individual layer HDPE sheath (4) outer or HDPE sheath (5) skin of double-deck HDPE sheath is also coated with one deck polyurea protection coating III (31d); Form outside individual layer HDPE sheath and be coated with the filling of one deck polyurea protection coating III or be coated with guy of twisted steel cable I a1d, I b1d of polyurea protection material; Or the outer HDPE sheath skin of double-deck HDPE sheath is also coated with the filling of one deck polyurea protection coating III or is coated with guy of twisted steel cable I a2d, I b2d of polyurea protection material.
8. a kind of guy of twisted steel cable of filling or being coated with polyurea protection material according to claim 6, it is characterized in that: this filling or be coated with guy of twisted steel cable I a0c1 of polyurea protection material, the individual layer HDPE sheath skin of I b0c1 is also coated with one deck polyurea protection coating III (31d), form and fill or be coated with guy of twisted steel cable I a0c1d, I b0c1d of polyurea protection material;
Or the skin of steel strand assembly have the filling of double-deck HDPE sheath or be coated with guy of twisted steel cable I a0c2 of polyurea protection material, the outer HDPE sheath skin of I b0c2 is also coated with one deck polyurea protection coating III, the filling of formation or be coated with guy of twisted steel cable I a0c2d, I b0c2d of polyurea protection material.
9. fill or be coated with the preparation method of the guy of twisted steel cable of polyurea protection material for one kind, it is the preparation method of filling according to claim 1 or the guy of twisted steel cable being coated with polyurea protection material, described single steel strand is formed by 1 central hair, m Gen Biansi twisted, comprises the anticorrosive steel strand that the plain bar twisted wire be made up of bright steel wire or the anticorrosion steel wire of the surface attachment coating or coating that are attached with epoxy coating, galvanizing coating, plastic coating, anticorrosion grease coating, oiliness wax or the coat of metal by the periphery at bright steel wire are formed; It is characterized in that: the preparation method of this filling or the guy of twisted steel cable that is coated with polyurea protection material is that after n root steel strand are carried out pretreatment, drying, one-tenth dish, sub-wire, filling polyurea materials, coalescence is molded into steel strand assembly, and between being formed in the middle part of n root steel strand, gap-fill has the filling of polyurea materials (31a) or is coated with guy of twisted steel cable I a of polyurea protection material; Its key step comprises:
A, pretreatment
A1: close inspection is carried out for raw steel twisted wire, the pollutants such as oil, fat, paint and its external surface does not have, are explained the deep bid to steel strand by draw drum;
A2: surfacing: adopt phosphoric acid and ultrasonic wave to process steel strand surface, remove the greasy dirt of steel strand surface, dust, rusty stain, and evenly do not allow corrosion-prone grey phosphating coat at single steel strand Surface Creation one deck;
B: dry: heat drying to be carried out to steel strand, removes surperficial moisture content;
C: one-tenth dish: qualified steel strand carry out constant speed traction through caterpillar tractor, rolls in disk storage line by deposit equipment;
D: sub-wire: be placed on several draw drums respectively by several one-tenth dishes steel strand well, pulled out by steel strand and penetrate a point guide frame, point guide frame has the hole corresponding to steel strand hexagonal array, enters in the disk storage line of guy of twisted steel cable strand streamline processed;
E: fill polyurea materials: namely one of in the following manner carry out coating type filling:
1. Extrusion Coating is filled: pretreated steel strand are passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray filling: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on pretreated steel strand;
3. soak pumping painting to fill: pretreated steel strand are immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way is filled: utilize machine brushing to make polyurea materials evenly be coated on pretreated steel strand;
F: coalescence is molded into steel strand assembly: by between steel strand, be filled with polyurea coating steel strand by many composing types device shaping for steel strand coalescence; Each shaped device is made up of 2 groups of 3 rolling wheels being mutually 120o angle; By regulating relative position and the thrust of each rolling wheel, make some steel strand strand integers be regular hexagon, in strand, each steel strand abut against each other, and make polyurea materials (31a) fully be filled in steel wire strand gap; The span of m is: 3≤n≤6, and the span of n is: 1≤n≤1000, and m, n are integer; Described polyurea materials is pure polyurea materials or half polyurea materials.
10. filling according to claim 9 or be coated with the preparation method of guy of twisted steel cable of polyurea protection material, is characterized in that: the filling that claim 1 is produced or be coated with polyurea protection material guy of twisted steel cable I a again through G: polyurea materials coating operation I: namely one of in the following manner:
1. Extrusion Coating: guy of twisted steel cable I a is passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on guy of twisted steel cable I a;
3. pumping painting is soaked: guy of twisted steel cable I a is immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly be coated on guy of twisted steel cable I a;
The outermost layer of steel strand assembly of guy of twisted steel cable I a making filling or be coated with polyurea protection material applies one deck polyurea protection coating I (31b); Make guy of twisted steel cable I b filling or be coated with polyurea protection material.
11. a kind of preparation methods of filling or being coated with the guy of twisted steel cable of polyurea protection material according to claim 9 or 10, it is characterized in that: the method is that the filling that makes of filling claim 1 made or guy of twisted steel cable I a being coated with polyurea protection material or claim 2 or guy of twisted steel cable I b that is coated with polyurea protection material pass through H again: be wrapped operation, the one deck that is wrapped in the periphery of steel strand assembly is wrapped band (2), forms guy of twisted steel cable I a0 or I b0 that fill or be coated with polyurea protection material.
12. a kind of preparation methods of filling or being coated with the guy of twisted steel cable of polyurea protection material according to claim 11, it is characterized in that: the filling that claim 11 is made or be coated with polyurea protection material guy of twisted steel cable I a0, I b0 again through I: polyurea materials coating operation II, namely one of in the following manner:
1. Extrusion Coating: guy of twisted steel cable I a0 or I b0 is passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on guy of twisted steel cable I a0 or I b0;
3. pumping painting is soaked: guy of twisted steel cable I a0 or I b0 is immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly be coated on guy of twisted steel cable I a0 or I b0;
Make guy of twisted steel cable I a0 or I b0 outer surface attachment polyurea coating II (31c); Form guy of twisted steel cable I a0c or I b0c that fill or be coated with polyurea protection material.
13. a kind of preparation methods of filling or being coated with the guy of twisted steel cable of polyurea protection material according to claim 9 or 10, is characterized in that: the method is that middle part claim 9 made is filled with the filling of polyurea materials or is coated with outermost layer that guy of twisted steel cable I a of polyurea protection material and claim 10 make and is coated with the filling that one deck polyurea protection coating I forms or guy of twisted steel cable I b being coated with polyurea protection material and overlaps extrusion molding operation I by J1:PE again or overlap extrusion molding operation I by J1:PE successively and J2:PE overlaps extrusion molding operation II; Be made into filling or guy of twisted steel cable I a1, I b1 that are coated with polyurea protection material that skin has an individual layer HDPE sheath (4) to form or have the filling that the double-deck HDPE sheath be made up of internal layer HDPE sheath (4) and outer HDPE sheath (5) is formed or guy of twisted steel cable I a2, I b2 that are coated with polyurea protection material.
14. a kind of preparation methods of filling or being coated with the guy of twisted steel cable of polyurea protection material according to claim 12, is characterized in that: the method is that filling claim 12 made or guy of twisted steel cable I a0c, I b0c being coated with polyurea protection material are overlapped extrusion molding operation I by J1:PE again or overlap extrusion molding operation I and J2:PE cover extrusion molding operation II by J1:PE successively; Being made into skin has the filling be made up of an individual layer HDPE sheath (4) or guy of twisted steel cable I a0c1, I b0c1 or the skin being coated with polyurea protection material have the filling of internal layer HDPE sheath (4) and the double-deck HDPE sheath of outer HDPE sheath (5) or are coated with guy of twisted steel cable I a0c2 or I b0c2 of polyurea protection material.
15. a kind of preparation methods of filling or being coated with the guy of twisted steel cable of polyurea protection material according to claim 13 or 14, it is characterized in that: the method is that the skin that claim 13 or 14 makes is had the filling be made up of an individual layer HDPE sheath (4) or guy of twisted steel cable I a1 being coated with polyurea protection material, I b1, I a0c1 or I b0c1, or skin has the filling of internal layer HDPE sheath (4) and the double-deck HDPE sheath of outer HDPE sheath (5) or is coated with guy of twisted steel cable I a2 or I b2 of polyurea protection material, I a0c2 or I b0c2 is again through K: polyurea materials coating operation III: namely one of in the following manner:
1. Extrusion Coating: guy of twisted steel cable I a1, I b1, I a0c1, I b0c1, I a2, I b2, I a0c2 or I b0c2 are passed through the hot-extrudable polyurea materials of extrusion moulding type equipment;
2. spray: by equipment temperature-pressure, raw material nozzle place mixing after by lance ejection polyurea materials on guy of twisted steel cable I a1, I b1, I a0c1, I b0c1, I a2, I b2, I a0c2 or I b0c2;
3. pumping painting is soaked: guy of twisted steel cable I a1, I b1, I a0c1, I b0c1, I a2, I b2, I a0c2 or I b0c2 are immersed in carbamide paint by pulling equipment, by outlet ring-type shaping structures after soaking;
4. machine painting way: utilize machine brushing to make polyurea materials evenly be coated on guy of twisted steel cable I a1, I b1, I a0c1, I b0c1, I a2, I b2, I a0c2 or I b0c2;
Be formed in individual layer HDPE sheath skin coating one deck polyurea protection coating III (31d) formation there is the filling of multiple protective structure or be coated with guy of twisted steel cable I a1d, I b1d, I a0c1d or I b0c1d of polyurea protection material; Or the outer HDPE sheath skin of double-deck HDPE sheath is coated with the filling that one deck polyurea protection coating III is formed or guy of twisted steel cable I a2d, I b2d, I a0c2d or I b0c2d that are coated with polyurea protection material.
CN201510084332.7A 2014-05-13 2015-02-16 Steel strand inhaul cable filled or coated with polyurea protective material and manufacturing method of steel strand inhaul cable Pending CN105088949A (en)

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CN114057945A (en) * 2021-12-15 2022-02-18 北京市建筑工程研究院有限责任公司 Double-sheath steel strand cable suitable for photovoltaic flexible support and preparation method thereof

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