CN102950837A - Composite steel strip and production method thereof - Google Patents
Composite steel strip and production method thereof Download PDFInfo
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- CN102950837A CN102950837A CN2012104434320A CN201210443432A CN102950837A CN 102950837 A CN102950837 A CN 102950837A CN 2012104434320 A CN2012104434320 A CN 2012104434320A CN 201210443432 A CN201210443432 A CN 201210443432A CN 102950837 A CN102950837 A CN 102950837A
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Abstract
The invention discloses a composite steel strip, which comprises a steel strip body (1), the outer surface of the steel strip body (1) is provided with one or more layers of metal platings (2), and the outer surface of the metal platings (2) is provided with a polyolefin adhesive resin layer (3); the entire outer surface of the steel strip body (1) is provided with the metal platings (2), and the entire outer surface of the metal platings (2) is provided with the polyolefin adhesive resin layer (3). Since the outer surface of the steel strip body of the composite steel strip produced by the production method is provided with the metal platings, the steel strip can be prevented from being corroded by the outside environment, the adhesion interface is protected, the adhesive resin is prevented from coming off from the steel strip, consequently, the quality of the composite steel strip is greatly increased, and the life of the composite steel strip is greatly prolonged.
Description
Technical field
The present invention relates to a kind of composite steel band and manufacture method thereof.
Background technology
Steel band reinforced polyethylene spiral ripple pipe has the advantages such as light weight, ring stiffness be high, corrosion-resistant, in municipal drainage, blow-off line, use more and more extensively, stipulated pipe structure among the CJ/T 225-2011 " buried draining with steel band enhanced polyethylene (PE) helical bellows ".
Patent 200410076972.7 discloses a kind of manufacture method of plastic-coated steel band, comprise steel band unreel → steel band burr removing → steel band heating → plastic extrusion and coat → coat after the steps such as steel band cooling → steel strip winding rolling.Practical application shows, the gluing steel band of direct coating plastic or PUR in extruder, and the adhesive effect of plastics or PUR and steel band is extremely undesirable.Not only bonding force is less than normal, and situation about losing efficacy under the effect of atmosphere, water, alternate stress occurs repeatedly, has had a strong impact on quality and the life-span of steel band reinforced plastics composite tube.
A kind of manufacture method of packing with steel-plastic composite steel belt is disclosed in the patent of application number 200810236907.2.With a steel band that minute cuts bar processings of turning blue first, after the steel band after processing of turning blue cools, enter the high-pressure electrostatic plastic-blasting device and carry out the outer surface plastic-blasting, the steel band behind the plastic-blasting is finalized the design through the wind cooling, namely makes composite steel-plastic belt.
The utility model of patent No. ZL 200720080551.9 provides a kind of improved steel-plastic composite pressure pipe, one or more layers plastics of the 1st section explanation of its Instructions Page 2 steel band one or both sides coating, and it is compound to be beneficial to mutual hot melt.
The utility model patent of patent No. ZL 200420058997.8 discloses a kind of steel strip reinforced spiral winding pipe plastic-coated steel band, is plastics are coated on around the steel band by extruder.
In the prior art, the steel band material is carbon steel, and adhering resin is generally the copolymer of the monomers such as maleic anhydride, acrylic acid, methacrylic acid and alkene, and the copolymerization mode comprises graft copolymerization, block copolymerization or random copolymerization.Steel band forms composite steel band after applying adhering resin by extruding dies, and composite steel band is used further to produce steel band reinforced polyethylene spiral ripple pipe, realizes steel band and poly bonding by adhering resin.And in steel-plastics composite pipe, the quality of the performance such as the height of adhesive strength and bonding interface be water-fast, weather-proof between steel was moulded directly affects the whole mechanics performance and used life of pipeline.
Theoretical and practical application shows that all after existing steel band reinforced polyethylene spiral ripple pipe was produced, the compositions such as the water of external environment, oxygen still can slowly diffuse to by the plastic layer of pipe end and tube wall this external surface of steel band, cause the corrosion of steel band.In case the steel band corrosion, not only self strength decreased also can cause adhering resin and steel band to come off, and steel plastic composite structure is disintegrated, and has a strong impact on quality and the life-span of steel band reinforced polyethylene spiral ripple pipe.In addition, this external surface of steel band is too smooth smooth, has also weakened the bonding intensity between steel band and the adhering resin, has reduced quality and the life-span of steel band reinforced polyethylene spiral ripple pipe.Only resolve the etching problem of steel band self, improve simultaneously outer surface roughness, could obtain the steel band reinforced polyethylene spiral ripple pipe of reliability height, long service life.
Summary of the invention
For solving above-mentioned the deficiencies in the prior art, an object of the present invention is to provide that a kind of bonding force is strong, water-fast, weather-proof, heat-resisting, the composite steel band of anti-alternate stress.
Another object of the present invention provides the manufacture method of above-mentioned composite steel band.
The present invention is achieved through the following technical solutions:
A kind of composite steel band contains steel band body 1, at steel band body 1 outer surface one or more layers coat of metal 2 is arranged, and the coat of metal 2 outer surfaces have Polyofefine adhesive resin bed 3.
The all outer surfaces of described steel band body 1 all has the described coat of metal 2; The coating gross thickness of the described coat of metal 2 is 0.5 μ m～300 μ m, and wherein, metal ingredient is selected from the alloy of one or more metals of zinc, aluminium, copper, nickel, chromium, cadmium, tin, lead.
The described coat of metal 2 outer surfaces are smooth state or depth of abrasion pattern is arranged is the roughness of 5 μ m～280 μ m.
The described coat of metal 2 all outer surfaces all have described Polyofefine adhesive resin bed 3.
The thickness of described Polyofefine adhesive resin bed 3 is 50 μ m～3000 μ m, its chemical composition is selected from the copolymer of maleic anhydride, acrylic acid, methacrylic acid, itaconic acid, glycidyl ester monomer and alkene, or this analog copolymer and polyolefinic blend, wherein, copolymerization mode is selected from graft copolymerization, block copolymerization or random copolymerization.
Described steel band body 1 is the steel band of carbon steel or steel alloy for porose or atresia, material, and cross section is straight shape, Ω shape, U-shaped or arch, and thickness is 0.1mm～5mm, and width is 20mm～1000mm.
A kind of manufacture method of above-mentioned composite steel band comprises the steps:
A) with chemical agent steel band body 1 outer surface is carried out preliminary treatment, make steel band body 1 outer surface reach the technically pure outer surface;
B) need roughness for steel band body 1 outer surface, steel band body 1 outer surface carried out sandblast, bead; Do not need roughness for steel band body 1 outer surface, directly enter next step;
C) plate one or more layers coat of metal 2 at steel band body 1 outer surface;
D) for needing roughness behind the steel band body 1 outer surface metal cladding 2, the steel band body 1 outer surface coat of metal 2 carried out sandblast, bead; For not needing roughness behind the steel band body 1 outer surface metal cladding 2, directly enter next step;
The steel band body 1 that e) will plate the coat of metal 2 carries out the coating of Polyofefine adhesive resin bed 3 by extruder.
Described step d) is carried out sandblast, bead to the steel band body 1 outer surface coat of metal 2, and its depth of abrasion pattern is less than the coating gross thickness.
Described step e) is after adopting the electromagnetic induction heating mode that the steel band body 1 that plates metal level is preheated to 180 ℃ ~ 250 ℃, is coated with by extruder and is covered with Polyofefine adhesive resin bed 3, and last water is cooled to 30 ℃ ~ 60 ℃ with composite steel band, rolling.
In the described step e), for the different composite steel band of section configuration, the shape that needs extruder to be applied the frocks such as mouthful mould is adjusted accordingly, and makes it coupling.The straight composite steel band that adopts said method to make, through rolling become Ω shape, U-shaped or arch iso-cross-section shape after for the production of steel band reinforced polyethylene spiral ripple pipe; Be rolled into first after Ω shape, U-shaped or the arch iso-cross-section shape again with the Polyofefine adhesive resin compounded, then can be directly used in the production steel band reinforced polyethylene spiral ripple pipe.
The present invention compared with prior art has following beneficial effect:
1) coat of metal has prevented the corrosion of external environment to steel band, has protected the compound sticking interface, has avoided coming off of adhering resin and steel band.
2) described composite steel band has overcome and has met the problem that the water capacity easily lost efficacy in the existing steel band reinforced polyethylene spiral ripple pipe between the steel band and adhering resin, compare with existing steel band, the water resistance of composite steel band of the present invention increases more than 10 times, soaked more than 100 days adhering resin and steel band without the phenomenon generation that comes off.
3) described composite steel band can be used as the steel reinforcing segments of steel strip reinforced polyolefin helical bellows, also can be used for the Other Engineering field.
Description of drawings
Fig. 1 is the cross-sectional configurations figure of straight composite steel band.
Fig. 2 is the cross-sectional configurations figure of arch composite steel band.
The specific embodiment
Further specify the present invention below by the specific embodiment, following examples are the better embodiment of the present invention, but embodiments of the present invention are not subjected to the restriction of following embodiment.
Embodiment 1
A kind of composite steel band contains steel band body 1, at steel band body 1 outer surface one deck zinc coat 2 is arranged, and zinc coat 2 outer surfaces have Polyofefine adhesive resin bed 3, and steel band body 1 material is carbon steel, atresia, and cross section is straight shape, thickness 0.5mm, width 70mm; Zinc coat 2 thickness are 30 μ m; Polyofefine adhesive resin bed 3 thickness reach 180 μ m, and its chemical composition is the copolymer of Research of Grafting Malaic Anhydride Onto Polyethylene;
Manufacture method may further comprise the steps: 1) respectively steel band body 1 outer surface is carried out preliminary treatment with degreaser and pickle, remove greasy dirt, lubricant, oxide layer and the impurity of outer surface, make this external surface of steel band reach the technically pure outer surface; 2) zinc coat 2 on steel band body 1 outer surface is electroplated, thickness reaches 30 μ m; 3) process with chromate, prevent that zinc coat 2 outer surfaces from producing white rust; 4) be preheated to 220 ℃ with the electromagnetic induction mode of heating to plating zinc layer steel band; 5) make and plate zinc layer steel band carries out Polyofefine adhesive resin bed 3 by extruder coating; 6) water is cooled to composite steel band below 60 ℃, rolling.
Embodiment 2
A kind of composite steel band contains steel band body 1, at steel band body 1 outer surface one deck copper plate 2 is arranged, and copper plate 2 outer surfaces have Polyofefine adhesive resin bed 3, steel band body 1 material is steel alloy, and is porose, and cross section is flat type, thickness 0.8mm, width 150mm, thickness of coated copper layer are 8 μ m to the maximum; The outer surface depth of abrasion pattern reaches more than the 50 μ m; Polyofefine adhesive resin bed 3 thickness reach 240 μ m, and its chemical composition is 1: 1 blend of EVA grafted maleic anhydride copolymer and LLDPE;
Manufacture method may further comprise the steps: 1) respectively steel band body 1 outer surface is carried out preliminary treatment with degreaser and pickle, remove greasy dirt, lubricant, oxide layer and the impurity of outer surface, make this external surface of steel band reach the technically pure outer surface; 2) steel band body 1 outer surface is carried out blasting treatment, reach the above depth of abrasion pattern of 58 μ m.3) copper plate 2 on steel band body 1 outer surface is electroplated, thickness is 8 μ m to the maximum; 4) with the electromagnetic induction mode of heating plated with copper layer steel band is preheated to 225 ℃; 5) make plated with copper layer steel band carry out the coating of Polyofefine adhesive resin bed 3 by extruder; 6) water is cooled to composite steel band below 50 ℃, rolling.
Embodiment 3
A kind of composite steel band contains steel band body 1, at steel band body 1 outer surface one deck aluminium coated 2 is arranged, and aluminium coated 2 outer surfaces have Polyofefine adhesive resin bed 3, steel band body 1 material is carbon steel, atresia, and cross section is Ω shape, thickness 1.2mm, width 300mm, aluminum layer thickness are 12 μ m to the maximum; The outer surface depth of abrasion pattern reaches more than the 75 μ m; Polyofefine adhesive resin bed 3 thickness reach 550 μ m, and its chemical composition is acrylic acid and poly block copolymer;
Manufacture method may further comprise the steps: 1) respectively steel band body 1 outer surface is carried out preliminary treatment with degreaser and pickle, remove greasy dirt, lubricant, oxide layer and the impurity of outer surface, make this external surface of steel band reach the technically pure outer surface; 2) steel band body 1 outer surface is carried out blasting treatment, reach the above depth of abrasion pattern of 87 μ m; 3) aluminium coated 2 in the 1 outer surface heat immersion plating of steel band body, thickness is 12 μ m to the maximum; 4) be preheated to 200 ℃ with the electromagnetic induction mode of heating to plating the aluminium lamination steel band; 5) make and plate the aluminium lamination steel band carries out Polyofefine adhesive resin bed 3 by extruder coating; 6) water is cooled to composite steel band below 30 ℃, rolling.
Embodiment 4
A kind of composite steel band contains steel band body 1, at steel band body 1 outer surface three layers of nickel coating 2 is arranged, and nickel coating 2 outer surfaces have Polyofefine adhesive resin bed 3, and steel band body 1 material is steel alloy, atresia, and cross section is U-shaped, thickness 5mm, width 800mm; Nickel coating 2 is that thickness is 30 μ m; Polyofefine adhesive resin bed 3 thickness reach 1750 μ m, and its chemical composition is EVA grafted maleic anhydride copolymer;
Manufacture method may further comprise the steps: 1) respectively steel band body 1 outer surface is carried out preliminary treatment with degreaser and pickle, remove greasy dirt, lubricant, oxide layer and the impurity of outer surface, make this external surface of steel band reach the technically pure outer surface; 2) nickel coating 2 on steel band body 1 outer surface is electroplated, thickness reaches 30 μ m; 4) be preheated to 250 ℃ with the electromagnetic induction mode of heating to plating the nickel dam steel band; 5) make and plate the nickel dam steel band carries out Polyofefine adhesive resin bed 3 by extruder coating; 6) water is cooled to composite steel band below 55 ℃, rolling.
Embodiment 5
A kind of composite steel band contains steel band body 1, at steel band body 1 outer surface one deck chromium coating 2 is arranged, and metal cladding 2 outer surfaces have Polyofefine adhesive resin bed 3, and steel band body 1 material is carbon steel, and is porose, and cross section is arch, thickness 4mm, width 1000mm; Chromium coating thickness is 60 μ m to the maximum; The outer surface depth of abrasion pattern reaches more than the 280 μ m; Polyofefine adhesive resin bed 3 thickness reach 3000 μ m, and its chemical composition is EAA grafting itaconic acid copolymer;
Manufacture method may further comprise the steps: 1) respectively steel band body 1 outer surface is carried out preliminary treatment with degreaser and pickle, remove greasy dirt, lubricant, oxide layer and the impurity of outer surface, make this external surface of steel band reach the technically pure outer surface; 2) steel band body 1 outer surface is carried out blasting treatment, reach the above depth of abrasion pattern of 340 μ m; 3) chromium coating 2 in the 1 outer surface plating of steel band body, maximum ga(u)ge reaches 60 μ m; 4) be preheated to 180 ℃ with the electromagnetic induction mode of heating to plating chromium layer steel band; 5) make and plate chromium layer steel band carries out Polyofefine adhesive resin bed 3 by extruder coating; 6) water is cooled to composite steel band below 45 ℃, rolling.
Embodiment 6
A kind of composite steel band contains steel band body 1, at steel band body 1 outer surface one deck zinc-copper alloy layer 2 is arranged, zinc-copper alloy layer 2 outer surfaces have Polyofefine adhesive resin bed 3, and steel band body 1 material is steel alloy, atresia, cross section is U-shaped, thickness 2.5mm, width 900mm; Zinc-plated-copper alloy layer 2 thickness are 300 μ m; The outer surface depth of abrasion pattern reaches 175 μ m; Polyofefine adhesive resin bed 3 thickness reach 2000 μ m, and its chemical composition is 2: 1 blends of Research of Grafting Malaic Anhydride Onto Polyethylene copolymer and LLDPE;
Manufacture method may further comprise the steps: 1) respectively steel band body 1 outer surface is carried out preliminary treatment with degreaser and pickle, remove greasy dirt, lubricant, oxide layer and the impurity of outer surface, make this external surface of steel band reach the technically pure outer surface; 2) zinc-copper alloy layer 2 on steel band body 1 outer surface is electroplated, thickness reaches 300 μ m; 3) zinc-plated-copper alloy layer 2 outer surfaces are carried out blasting treatment, reach the depth of abrasion pattern of 175 μ m; 4) be preheated to 210 ℃ with the electromagnetic induction mode of heating to plating zinc-copper alloy layer steel band; 5) make and plate zinc-copper alloy layer steel band carries out Polyofefine adhesive resin bed 3 by extruder coating; 6) water is cooled to composite steel band below 55 ℃, rolling.
Embodiment 7
A kind of composite steel band contains steel band body 1, at steel band body 1 outer surface two layers of metallization layer 2(bottom copper facing top layer nickel plating is arranged), metal cladding 2 outer surfaces have Polyofefine adhesive resin bed 3, and steel band body 1 material is carbon steel, and is porose, cross section is arch, thickness 1.8mm, width 600mm; Bottom copper facing top layer nickel coating thickness is 50 μ m to the maximum; The outer surface depth of abrasion pattern reaches more than the 200 μ m; Polyofefine adhesive resin bed 3 thickness reach 1200 μ m, and its chemical composition is EAA grafting glycidyl ester copolymer;
Manufacture method may further comprise the steps: 1) respectively steel band body 1 outer surface is carried out preliminary treatment with degreaser and pickle, remove greasy dirt, lubricant, oxide layer and the impurity of outer surface, make this external surface of steel band reach the technically pure outer surface; 2) steel band body 1 outer surface is carried out blasting treatment, reach the above depth of abrasion pattern of 250 μ m; 3) metal level 2 of bottom copper top layer nickel on steel band body 1 outer surface is electroplated, maximum ga(u)ge reaches 50 μ m; 4) with the electromagnetic induction mode of heating bottom copper facing top layer zinc coat steel band is preheated to 215 ℃; 5) make bottom copper facing top layer zinc coat steel band carry out the coating of Polyofefine adhesive resin bed 3 by extruder; 6) water is cooled to composite steel band below 60 ℃, rolling.
Embodiment 8
A kind of composite steel band contains steel band body 1, at steel band body 1 outer surface one deck tin coating 2 is arranged, and tin coating 2 outer surfaces have Polyofefine adhesive resin bed 3, and steel band body 1 material is steel alloy, atresia, and cross section is U-shaped, thickness 1.4mm, width 700mm; Tin coating 2 thickness are 30 μ m; Polyofefine adhesive resin bed 3 thickness reach 500 μ m, and its chemical composition is methacrylic acid and poly random copolymer;
Manufacture method may further comprise the steps: 1) respectively steel band body 1 outer surface is carried out preliminary treatment with degreaser and pickle, remove greasy dirt, lubricant, oxide layer and the impurity of outer surface, make this external surface of steel band reach the technically pure outer surface; 2) tin coating 2 in the 1 outer surface heat immersion plating of steel band body, thickness reaches 30 μ m; 4) be preheated to 220 ℃ with the electromagnetic induction mode of heating to plating tin layer steel band; 5) make and plate tin layer steel band carries out Polyofefine adhesive resin bed 3 by extruder coating; 6) water is cooled to composite steel band below 58 ℃, rolling.
Embodiment 9
A kind of composite steel band contains steel band body 1, at steel band body 1 outer surface one deck lead plating layer 2 is arranged, and lead plating layer 2 outer surface have one deck Polyofefine adhesive resin bed 3, and steel band body 1 material is carbon steel, and is porose, and cross section is straight shape, thickness 0.1mm, width 20mm; The lead plating layer thickness is 0.5 μ m; Polyofefine adhesive resin bed 3 thickness reach 50 μ m, and its chemical composition is the copolymer of Research of Grafting Malaic Anhydride Onto Polyethylene;
Manufacture method may further comprise the steps: 1) respectively steel band body 1 outer surface is carried out preliminary treatment with degreaser and pickle, remove greasy dirt, lubricant, oxide layer and the impurity of outer surface, make this external surface of steel band reach the technically pure outer surface; 2) lead plating layer 2 in the 1 outer surface heat immersion plating of steel band body, thickness reaches 0.5 μ m; 4) be preheated to 225 ℃ with the electromagnetic induction mode of heating to plating the lead layer steel band; 5) make and plate the lead layer steel band carries out Polyofefine adhesive resin bed 3 by extruder coating; 6) water is cooled to composite steel band below 45 ℃, rolling.
Embodiment 10
A kind of composite steel band contains steel band body 1, at steel band body 1 outer surface one deck nickel plating-chromium alloy layer 2 is arranged, nickel plating-chromium alloy layer 2 outer surfaces have two-layer Polyofefine adhesive resin bed 3, and steel band body 1 material is steel alloy, atresia, cross section is arch, thickness 1mm, width 500mm; Nickel plating-chromium alloy layer 2 thickness are 2.5 μ m to the maximum; The outer surface depth of abrasion pattern reaches more than the 5 μ m; Polyofefine adhesive resin bed 3 thickness reach 400 μ m, and its chemical composition is 3: 2 blends of Research of Grafting Malaic Anhydride Onto Polyethylene copolymer and LLDPE;
Manufacture method may further comprise the steps: 1) respectively steel band body 1 outer surface is carried out preliminary treatment with degreaser and pickle, remove greasy dirt, lubricant, oxide layer and the impurity of outer surface, make this external surface of steel band reach the technically pure outer surface; 2) steel band body 1 outer surface is carried out blasting treatment, reach the above depth of abrasion pattern of 7.5 μ m; 3) nickel-chromium alloy layer 2 on steel band body 1 outer surface is electroplated, maximum ga(u)ge reaches 2.5 μ m; 4) with the electromagnetic induction mode of heating plated with nickel-chromium alloy layer steel band is preheated to 207 ℃; 5) make plated with nickel-chromium alloy layer steel band carry out the coating of Polyofefine adhesive resin bed 3 by extruder; 6) water is cooled to composite steel band below 50 ℃, rolling.
Embodiment 11
A kind of composite steel band contains steel band body 1, at steel band body 1 outer surface one deck cadmium plating layer 2 is arranged, and cadmium plating layer 2 outer surface have Polyofefine adhesive resin bed 3, and steel band body 1 material is steel alloy, atresia, and cross section is U-shaped, thickness 1.4mm, width 700mm; Cadmium plating layer 2 thickness are 80 μ m; Polyofefine adhesive resin bed 3 thickness reach 350 μ m, and its chemical composition is methacrylic acid and poly random copolymer;
Manufacture method may further comprise the steps: 1) respectively steel band body 1 outer surface is carried out preliminary treatment with degreaser and pickle, remove greasy dirt, lubricant, oxide layer and the impurity of outer surface, make this external surface of steel band reach the technically pure outer surface; 2) cadmium plating layer 2 on steel band body 1 outer surface electricity, thickness reaches 80 μ m; 4) be preheated to 180 ℃ with the electromagnetic induction mode of heating to plating cadmium layer steel band; 5) make and plate cadmium layer steel band carries out Polyofefine adhesive resin bed 3 by extruder coating; 6) water is cooled to composite steel band below 30 ℃, rolling.
Claims (11)
1. composite steel band, steely band body (1) is characterized in that, at steel band body (1) outer surface one or more layers coat of metal (2) is arranged, the coat of metal (2) outer surface has Polyofefine adhesive resin bed (3).
2. composite steel band according to claim 1 is characterized in that, all outer surfaces of described steel band body (1) all has the described coat of metal (2).
3. composite steel band according to claim 1 is characterized in that, the coating gross thickness of the described coat of metal (2) is 0.5 μ m～300 μ m, and wherein, metal ingredient is selected from the alloy of one or more metals of zinc, aluminium, copper, nickel, chromium, cadmium, tin, lead.
4. composite steel band according to claim 1 is characterized in that, the described coat of metal (2) outer surface is smooth state or depth of abrasion pattern is arranged is the roughness of 5 μ m～280 μ m.
5. composite steel band according to claim 1 is characterized in that, the described coat of metal (2) all outer surfaces all has described Polyofefine adhesive resin bed (3).
6. composite steel band according to claim 1, it is characterized in that, described Polyofefine adhesive resin bed (3) thickness is 50 μ m～3000 μ m, its chemical composition is selected from the copolymer of maleic anhydride, acrylic acid, methacrylic acid, itaconic acid, glycidyl ester monomer and alkene, or this analog copolymer and polyolefinic blend, wherein, copolymerization mode is selected from graft copolymerization, block copolymerization or random copolymerization.
7. composite steel band according to claim 1, it is characterized in that described steel band body (1) is the steel band of carbon steel or steel alloy for porose or atresia, material, cross section is straight shape, Ω shape, U-shaped or arch, thickness is 0.1mm～5mm, and width is 20mm～1000mm.
8. such as the manufacture method of claim 1 ~ 7 composite steel band as described in each, it is characterized in that, comprise the steps:
A) with chemical agent steel band body (1) outer surface is carried out preliminary treatment, make steel band body (1) outer surface reach the technically pure outer surface;
B) need roughness for steel band body (1) outer surface, steel band body (1) outer surface carried out sandblast, bead; Do not need roughness for steel band body (1) outer surface, directly enter next step;
C) plate one or more layers coat of metal (2) at steel band body (1) outer surface;
D) for needing roughness behind steel band body (1) the outer surface metal cladding (2), steel band body (1) the outer surface coat of metal (2) is carried out sandblast, bead; For not needing roughness behind steel band body (1) the outer surface metal cladding (2), directly enter next step;
The steel band body (1) that e) will plate the coat of metal (2) carries out the coating of Polyofefine adhesive resin by extruder.
9. manufacture method according to claim 8, it is characterized in that: described step d) is carried out sandblast, bead to steel band body (1) the outer surface coat of metal (2), and its depth of abrasion pattern is less than the coating gross thickness.
10. manufacture method according to claim 8 is characterized in that: the different section shape of described step e) composite steel band, the frock shape that extruder applies mouthful mould is complementary with it.
11. according to claim 8 or 10 described manufacture methods, it is characterized in that: described step e) is after adopting the electromagnetic induction heating mode that the steel band body (1) that plates metal level is preheated to 180 ℃ ~ 250 ℃, be coated with by extruder and be covered with Polyofefine adhesive resin bed (3), last water is cooled to 30 ℃ ~ 60 ℃ with composite steel band, rolling.
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| CN103540981A (en) * | 2013-10-29 | 2014-01-29 | 沈阳仪表科学研究院有限公司 | Multi-layer thin-wall electro-deposition corrugated pipe and processing method thereof |
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