CN202507619U - Composite steel band - Google Patents
Composite steel band Download PDFInfo
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- CN202507619U CN202507619U CN201220022984XU CN201220022984U CN202507619U CN 202507619 U CN202507619 U CN 202507619U CN 201220022984X U CN201220022984X U CN 201220022984XU CN 201220022984 U CN201220022984 U CN 201220022984U CN 202507619 U CN202507619 U CN 202507619U
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- steel band
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- composite steel
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Abstract
The utility model discloses a composite steel band. The composite steel band sequentially consists of a steel band, an epoxy solidifying layer and a polyolefin adhesive resin layer from inside to outside, wherein the polyolefin adhesive resin layer coats the epoxy solidifying layer; the cross section of the steel band is straight, omega-shaped, U-shaped or arc-shaped; the depth of an anchor pattern of the surface of the steel band reaches 5 to 280 mu m; the epoxy solidifying layer is formed by solidifying a liquid epoxy coating or an epoxy powder coating and is 8 to 300 mu m thick; and the thickness of the polyolefin adhesive resin layer is 50 to 3,000 mu m. Compared with the prior art, the composite steel band has the advantages that the roughness of the surface of the steel band is high, so that adhesive force and durability between the steel band and the epoxy coating can be greatly improved; and the liquid epoxy coating or the epoxy powder coating reacts with the surfaces of the steel band and a polyolefin adhesive, and a chemical bond is generated, so that the adhesive strength, the thermal resistance and the durability are improved.
Description
Technical field
The utility model relates to a kind of composite steel band, and this kind steel band is used to produce products such as steel band reinforced polyethylene spiral ripple pipe, belongs to the composite metal plastic pipe technical field.
Background technology
Steel band reinforced polyethylene spiral ripple pipe has advantages such as light weight, ring stiffness be high, corrosion-resistant; In municipal drainage, blow-off line, use more and more widely, stipulated pipe structure among the CJ/T 225-2011 " burying the ground draining " with steel band enhanced polyethylene (PE) helical bellows.
Application number is 200410076972.7,200810236907.2, disclose the structure and the manufacturing approach of the steel-plastic composite steel belt that is used for steel-plastics composite pipe in the Chinese patent of ZL 200720080551.9, ZL200420058997.8.
In steel-plastics composite pipe, the quality of performance such as heat-resisting, water-fast, weather-proof, anti-alternate stress of the height of adhesive strength and adhesive linkage between steel is moulded directly influences the whole mechanical property and the service life of pipeline.
In the prior art, steel strip surface is used to produce steel band reinforced polyethylene spiral ripple pipe after in extruder, applying adhering resin, realizes steel band and poly bonding through adhering resin.Adhering resin is generally the copolymer of monomers such as maleic anhydride, acrylic acid, methacrylic acid and alkene, and the copolymerization mode comprises graft copolymerization, block copolymerization or random copolymerization.
Practical application shows, in extruder, directly applies the composite steel band of adhering resin, and the adhesive effect of adhering resin and steel band is extremely undesirable.Not only bonding force is less than normal, and situation about under the effect of atmosphere, water, alternate stress, losing efficacy takes place repeatedly, has had a strong impact on the quality and the life-span of steel band reinforced polyethylene spiral ripple pipe.
Through the mode of on steel band, punching, though the adhering resin of steel band both sides can be fused into one through the aperture, major part does not have the zone in aperture still to be prone to lose efficacy.
Cause the reason of this major defect to mainly contain three aspects, at first, adhering resin and steel strip surface are that physics is bonding, and adhesion is little; Secondly, the steel strip surface smooth, roughness is not enough; At last, do not apply external pressure in the process that adhering resin applies on steel band.
Only address these problems, could obtain the steel band reinforced polyethylene spiral ripple pipe of reliability height, long service life.
Summary of the invention
The utility model provides the new structure composite steel band of excellent performances such as a kind of bonding force is strong, heat-resisting, water-fast, weather-proof, anti-alternate stress.
The said composite steel band of the utility model, this composite steel band are from inside to outside successively by steel band, curable epoxide layer be coated on outer polyolefin adhering resin and form.
The steel band material is carbon steel, alloy steel or stainless steel, and cross section is shapes such as straight shape, Ω shape, U-shaped or arch, thickness 0.1mm～5mm, width 20mm～1000mm; Steel strip surface is coarse, and depth of abrasion pattern reaches 5 μ m～280 μ m; The curable epoxide layer is that liquid epoxy coating or epoxide powder coating curing form, and is solidificated on the steel band, and thickness is 8 μ m～300 μ m; Polyolefin adhering resin thickness is 50 μ m～3000 μ m; Its chemical composition is the copolymer of monomers such as maleic anhydride, acrylic acid, methacrylic acid, itaconic acid, ethylene oxidic ester and alkene; Or this analog copolymer and polyolefinic blend, the copolymerization mode comprises graft copolymerization, block copolymerization or random copolymerization.
The said composite steel band of the utility model has following beneficial effect:
1. the roughness of steel strip surface is high, and surface-active increases, and can significantly improve the adhesive force between steel band and the epoxy coating;
2. contain a large amount of epoxy radicals, hydroxyl isoreactivity group in liquid epoxy coating or the epoxide powder coating; In the process of self solidifying; Not only bonding with steel band and polyolefin adhesive surface formation physics; Chemical reaction can also take place, generate chemical bond, thereby adhesive strength, hear resistance, durability improve greatly;
3. it is little that said product overcomes in the existing steel band reinforced polyethylene spiral ripple pipe between the steel band and adhering resin bonding force, the problem that lost efficacy easily.Compare with the composite steel band of prior art, the peel strength of composite steel band according to the invention has improved 1-2 doubly, can reach 200N/cm; The time that anti-boiling water bubble boils increases 5-10 doubly, reaches more than the 20h;
4. said steel band can be used as the steel reinforcing segments of steel band reinforced polyethylene spiral ripple pipe, also can be used for the Other Engineering field.
Description of drawings
Fig. 1 is the cross-sectional configuration figure of straight composite steel band;
Fig. 2 is the cross-sectional configuration figure of arch composite steel band.
1. steel bands among the figure, 2. curable epoxide layer, 3. polyolefin bonding agent.
The specific embodiment
Embodiment 1
Composite steel band is steel band 1, curable epoxide layer 2 and polyolefin adhering resin 3 from inside to outside successively, and steel band 1 material is a carbon steel, and cross section is straight shape, thickness 0.4mm, and width 60mm, surperficial depth of abrasion pattern reach 25 μ m; Curable epoxide layer 2 is that epoxide powder coating curing forms, and thickness is 35 μ m; Polyolefin adhering resin 3 thickness reach 150 μ m, and its chemical composition is the copolymer of polycthylene grafted maleic anhydride.
Embodiment 2
Composite steel band is steel band 1, curable epoxide layer 2 and polyolefin adhering resin 3 from inside to outside successively, and steel band 1 material is a steel alloy, and cross section is a U-shaped, thickness 0.7mm, and width 150mm, surperficial depth of abrasion pattern reach 50 μ m; Curable epoxide layer 2 is that liquid epoxy coating curing forms, and thickness is 65 μ m; Polyolefin adhering resin 3 thickness reach 240 μ m, and its chemical composition is 1: 1 blend of EVA grafted maleic anhydride copolymer and LLDPE.
Composite steel band is steel band 1, curable epoxide layer 2 and polyolefin adhering resin 3 from inside to outside successively, and steel band 1 material is a stainless steel, and cross section is a Ω shape, thickness 1.2mm, and width 200mm, surperficial depth of abrasion pattern reach 65 μ m; Curable epoxide layer 2 is that epoxide powder coating curing forms, and thickness is 80 μ m; Polyolefin adhering resin 3 thickness reach 550 μ m, and its chemical composition is itaconic acid and poly block copolymer.
Embodiment 4
Composite steel band is steel band 1, curable epoxide layer 2 and polyolefin adhering resin 3 from inside to outside successively, and steel band 1 material is a carbon steel, and cross section is an arch, thickness 3.0mm, and width 400mm, surperficial depth of abrasion pattern reach 150 μ m; Curable epoxide layer 2 is that liquid epoxy coating curing forms, and thickness is 180 μ m; Polyolefin adhering resin 3 thickness reach 1000 μ m, and its chemical composition is 2: 1 blends of EVA grafted propylene acid copolymer and LLDPE.
Embodiment 5
Composite steel band is steel band 1, curable epoxide layer 2 and polyolefin adhering resin 3 from inside to outside successively, and steel band 1 material is a steel alloy, and cross section is a U-shaped, thickness 5mm, and width 750mm, surperficial depth of abrasion pattern reach 250 μ m; Curable epoxide layer 2 is that epoxide powder coating curing forms, and thickness is 300 μ m; Polyolefin adhering resin 3 thickness reach 1750 μ m, and its chemical composition is 1: 2 blend of polyolefin grafting ethylene oxidic ester and LLDPE.
Embodiment 6
Composite steel band is steel band 1, curable epoxide layer 2 and polyolefin adhering resin 3 from inside to outside successively, and steel band 1 material is a stainless steel, and cross section is an arch, thickness 4.5mm, and width 1000mm, surperficial depth of abrasion pattern reach 280 μ m; Curable epoxide layer 2 is that epoxide powder coating curing forms, and thickness is 320 μ m; Polyolefin adhering resin 3 thickness reach 3000 μ m, and its chemical composition is an EVA grafted maleic anhydride copolymer.
Claims (1)
1. a composite steel band is characterized in that, this composite steel band is from inside to outside successively by steel band, curable epoxide layer be coated on outer polyolefin adhering resin and form.
2. composite steel band according to claim 1 is characterized in that, the steel band material is carbon steel, alloy steel or stainless steel, and cross section is straight shape, Ω shape, U-shaped or arch, thickness 0.1mm～5mm, width 20mm～1000mm.
3. composite steel band according to claim 1 is characterized in that steel strip surface is coarse, and depth of abrasion pattern reaches 5 μ m～280 μ m.
4. composite steel band according to claim 1 is characterized in that, the curable epoxide layer is that liquid epoxy coating or epoxide powder coating curing form, and thickness is 8 μ m～300 μ m.
5. composite steel band according to claim 1 is characterized in that, polyolefin adhering resin thickness is 50 μ m～3000 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220022984XU CN202507619U (en) | 2012-01-18 | 2012-01-18 | Composite steel band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220022984XU CN202507619U (en) | 2012-01-18 | 2012-01-18 | Composite steel band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202507619U true CN202507619U (en) | 2012-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220022984XU Expired - Lifetime CN202507619U (en) | 2012-01-18 | 2012-01-18 | Composite steel band |
Country Status (1)
| Country | Link |
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| CN (1) | CN202507619U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102582165A (en) * | 2012-01-18 | 2012-07-18 | 绵阳东方特种工程塑料有限公司 | Composite steel belt and manufacturing method thereof |
-
2012
- 2012-01-18 CN CN201220022984XU patent/CN202507619U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102582165A (en) * | 2012-01-18 | 2012-07-18 | 绵阳东方特种工程塑料有限公司 | Composite steel belt and manufacturing method thereof |
| CN102582165B (en) * | 2012-01-18 | 2015-07-15 | 绵阳东方特种工程塑料有限公司 | Composite steel belt and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160121 Address after: 621000 Yongan junction, Yongxing Industrial Park, hi tech Zone, Sichuan, Mianyang Patentee after: SICHUAN KINGFA TECHNOLOGY DEVELOPMENT CO., LTD. Patentee after: Kingfa Technology Co., Ltd. Patentee after: Shanghai Kingfa Science and Technology Development Co., Ltd. Address before: 621000 Yongan junction, Yongxing Industrial Park, hi tech Zone, Sichuan, Mianyang Patentee before: Mianyang Dongfang Special Engineering Plastic Co., Ltd. Patentee before: Kingfa Technology Co., Ltd. Patentee before: Shanghai Kingfa Science and Technology Development Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121031 |