CN103851277A - Production method for steel-plastic warping and soldering pipe - Google Patents
Production method for steel-plastic warping and soldering pipe Download PDFInfo
- Publication number
- CN103851277A CN103851277A CN201210502270.3A CN201210502270A CN103851277A CN 103851277 A CN103851277 A CN 103851277A CN 201210502270 A CN201210502270 A CN 201210502270A CN 103851277 A CN103851277 A CN 103851277A
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- steel
- plastic
- steel band
- hot melt
- melt adhesive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention relates to a production method for steel-plastic warping and soldering pipes. The production method for the steel-plastic warping and soldering pipes is formed by the following steps of (1) preprocessing steel belts; (2) coating a layer of hot melt adhesive on the surface of every preprocessed steel belt under high pressure; (3) pressing a reinforced rib groove longitudinally on every adhesive coated steel belt; (4) heating the surface of every steel belt which is provided with the hot melt adhesive and the rib groove, performing high pressure plastic coating and cooling and forming after vacuumization; (5) curling the steel belts which are performed plastic coating into steel-plastic warping and soldering pipes in different diameter a through a curving forming machine; (6) removing the hot melt adhesive and the plastic at edges of adjacent steel belts during curling; (7) performing continuous welding at the edges of the adjacent steel belts; (8) coating the layer of hot melt adhesive on the inner sides and the outer sides of welding joints at the continuous welding positions and coating a layer of plastic outside the hot melt adhesive; (9) cooling the plastic on the inner side and the outer side of the welding joints. The production method for the steel-plastic warping and soldering pipes has the advantages of being firm in steel-plastic combining and not easy to delaminate; greatly enhancing the ring stiffness (radial resistant pressure) and axial tension resistant capability and overcoming the problems that the plastic is easy to leak, desolder and crack during utilization.
Description
Technical field
The present invention relates in a kind of structured wall plastic pipe, particularly a kind of steel is moulded the manufacture method that is wound around welded pipe.
Background technique
Steel is moulded entwining tube and is had the advantages such as intensity is high, cost is low, not perishable, aspect draining, blowdown, be widely adopted in recent years, existing steel is moulded entwining tube and is divided into two classes according to molding mode difference, one class is that steel band is longitudinally pressed into muscle groove, then the ribbon spiral that is pressed into muscle groove is wound around, when winding, coating plastic is shaped; Another kind of is to make the heterotypic strip with metal ribs with metal tape and plastics, then moulds entwining tube by being wound in steel with the heterotypic strip of metal ribs; All there is following shortcoming in this two classes tubing: one,, owing to being namely that pure plastics connect without any reinforce between metal reinforcing between steel band, can not bear larger pressure; Two, due to not welding between steel band, only depend on plastic bonding, and seam is longer, the reliability of connection is difficult to control and measurement, and the axial tensile strength of tubing is lower, easy seepage in using process; Three, steel band has stronger Buckling stress to cause steel band and the easy layering of plastics, and tube surfaces produces crack.The invention provides a kind of steel and mould and be wound around the making method of welded pipe for overcoming above-mentioned shortcoming.
Summary of the invention
The object of the invention is to solve in prior art existing the problems referred to above in the time producing steel and mould entwining tube, provide a kind of steel to mould the making method and the manufacturing mechanism that are wound around welded pipe.The present invention designs a kind of steel and moulds winding welded pipe manufacture method, it is characterized in that being formed by the following step: (1) carries out pretreatment to steel band, (2) after pretreatment, the surface high pressure of steel band applies one deck hot melt adhesive, (3) steel band after gluing is longitudinally suppressed stiffening rib groove, (4) by the steel strip surface heating with hot melt adhesive and muscle groove, then high pressure plastic-coated, vacuumize rear cooling and shaping, (5) mould entwining tube with the steel that the good ribbon spiral of plastic-coated is curled into different-diameter by bender, (6) processing that hot melt adhesive and plastics are removed by the edge of adjacent steel band when curling, (7) carry out continuous welding in the edge of adjacent steel band, (8) the inside and outside both sides of the weldering cutting edge of a knife or a sword of continuous welding place apply one deck hot melt adhesive separately, then at the external coating one deck of thermosol plastics, (9) plastics of the inside and outside both sides of butt welding seam crossing carry out cooling.It is characterized in that: the stiffening rib groove shape of described steel band can be arc, rectangle, triangle, polygonal.It is characterized in that: the inside and outside coating layer of described weld is to compress the weld joint of material embryo to adjacent steel belt edge by running roller, the shape of running roller can be convex or matrix and with floating installation to realize the perfect adaptation of plastic layer, glue-line, steel band.It is characterized in that: unless described pretreatment is for to carry out oil removing, rust cleaning limit, flash removed, surface coarsening, heat treated to steel band.
The present invention has following characteristics: the one, increase the pre-treater that steel band is carried out oil removing, rust cleaning, deburring, flash removed, steel band plane carried out to roughening treatment; The 2nd, the glue-line of steel band and plastic layer are all by high pressure extrusion die, the bed of material to be expressed on steel band, first make the steel plastic band material with metal ribs groove; The 3rd, increase band seam continuous welding device, make the steel band of spiral become continuous entirety, tubing intensity strengthens greatly.The steel of producing is moulded and is wound around the advantage of welded pipe and is, the one, glue-line and band coating layer are to be expressed on steel band by high pressure extrusion die, steel band itself is by oil removing, rust cleaning, alligatoring and heat treated, steel mould in conjunction with very firmly, be difficult for delamination; Two because be continuous welding between steel band, and ring stiffness (anti-radial pressure) and axially resistance to tension strengthen greatly, the 3rd, and the continuity of steel band has been eliminated steel band self Buckling stress, has overcome the in use problem of plastics easy to leak, easy sealing-off, cracking; Common steel is moulded entwining tube can only be used as draining, drain pipe, do not bear interior pressure, level is laid, and steel mould be wound around welded pipe can be used as submarine oil and the construction of natural gas fields, mining gas discharging, feedwater and engineering irrigation etc., this pipe not only can bear higher external pressure can also bear stronger interior pressure, not only can level be installed by all right at right angle setting, such as: at right angle setting is inferior to thousands of rice dark seabed or mines.
Accompanying drawing explanation
Accompanying drawing 1 is the shaping schematic view of steel strip winding welded pipe of the present invention.
Accompanying drawing 2 is a whole set of manufacturing mechanism floor map of all steel strip winding welded pipes of the present invention.
Embodiment
Fig. 2 is the floor map of a whole set of manufacturing mechanism of steel strip winding welded pipe, steel band unreeling machine 1 launches entire volume steel band, by pre-treater 2, steel band is carried out to oil removing, rust cleaning, unless limit, flash removed, the processing such as surface coarsening, steel band after treatment heats by heating equipment 3, steel band after heating is coated one deck hot melt adhesive under the effect of glue spreading apparatus 4, after hot melt adhesive is cooling, by steel band muscle groove compression molding device 5, band is pressed into the shape needing, after band heating with muscle groove, pass through plastic-coated device 6 high pressure plastic-coateds, plastic raw material can be PO, PVC, PET, ripple is fine to be strengthened, dual anti-material or other macromolecular material, after plastic-coated, entering cooling and shaping device 7 forces the cooling Vacuum shaping that adds to become to mould heterotypic strip 15 with the steel of metal ribs groove, steel is moulded heterotypic strip 15 and is sent bender 9 to by traction conveyor 8, steel is moulded heterotypic strip 15 and is wound in spirality tubing through bender 9, bender 9 is made up of one group of roller 19, each running roller and spirality tubing outer ring are tangent, welding machine 10, is removed the hot melt adhesive of weld and plastics before welding along the seam crossing continuous welding of steel band in the outside of spirality tubing, heating equipment 14 is along the inner and outer surface heating of seam, be responsible for by plastic coat the inner and outer surface at scrap (bridge) place by soldered plastic-coated device 11, the surface of the entwining tube that the unsteady roller apparatus 18 compressing of increase difformity band presses the material embryo 17 of plastics, cooling rear final molding steel is moulded helically welded tube 16, pipe bracket 13 effect is the length that supporting steel is moulded helically welded tube 16,16 and cut into by pipe cutting machine 12 actual demand.
The high pressure plastic-coated carrying out in step 4, adopt a plastic-coated device 6 that the steel band painting with stiffening rib is moulded to inner side one side smooth, outside one side has difform waveform, its inner side surface can form a cavity, also can be solid, the steel strip winding welded pipe inwall after being rolled into shape that can make be smooth.
The present invention make steel mould be wound around welded pipe be to make in accordance with the following methods:
1, before steel band is pressed into muscle groove, it is carried out to pretreatment (carrying out the processing such as alligatoring, heating unless comprised oil removing, rust cleaning limit, flash removed, surface), then apply one deck hot melt adhesive in the surface high pressure of steel band.
2, the steel band after gluing is longitudinally pressed into needed shape continuously, that is: stiffening rib groove, the shape of muscle groove can be arc, rectangle, triangle, polygonal etc.
3, by the strip surface heating with hot melt adhesive and muscle groove, then high pressure plastic-coated, then vacuumize, cooling and shaping Cheng Gang moulds heterotypic strip, plastic raw material can be that PO, PVC, PET, ripple finely strengthen, dual anti-material or other macromolecular material.
4, by bender by heterotypic strip helix-coil good plastic-coated, bender is made up of a lot of running rollers, the steel that the steel band that plastic-coated is good is squeezed into different-diameter by one group of running roller is moulded entwining tube, curling time along lap-joint's continuous welding of steel band, this is welded as metal and metal solder, welding manner can be scrap (bridge) weldering, can be also butt welding, before welding, the plastics of weld is removed.
5, continuous welding place internal and external layer plastic-coated, plastic raw material can be PO, PVC, PET, ripple is fine to be strengthened, dual anti-material or other macromolecular material, before weld plastic-coated, to heat, these painting plastics have two extruders to coordinate two cover extrusion dies to extrude, extruded stock embryo can be sheet, also can be bar shaped, the width of material embryo is greater than the width of lap-joint's weld seam, material embryo is pressed to the scrap (bridge) place of steel band by running roller, comprise internal layer and skin, material embryo helical is pasted, the pitch pitch curling with ribbon spiral equates, the shape of running roller can be convex, also can be matrix and with floating installation to realize plastic layer, glue-line, the perfect adaptation of steel band.
6, carry out cooling by water-cooled, air-cooled or other cooling medium to weld internal and external layer plastics.
7, the thickness of the tubing steel band of different-diameter and width can be different, and the material of steel band can be Ordinary Steel, stainless steel, alloyed steel etc., and the sectional shape of muscle groove and size are flexible and changeable.
Claims (4)
1. a steel is moulded and is wound around welded pipe manufacture method, it is characterized in that being formed by the following step: (1) carries out pretreatment to steel band, (2) after pretreatment, the surface high pressure of steel band applies one deck hot melt adhesive, (3) steel band after gluing is longitudinally suppressed stiffening rib groove, (4) by the steel strip surface heating with hot melt adhesive and muscle groove, then high pressure plastic-coated, vacuumize rear cooling and shaping, (5) mould entwining tube with the steel that the good ribbon spiral of plastic-coated is curled into different-diameter by bender, (6) processing that hot melt adhesive and plastics are removed by the edge of adjacent steel band when curling, (7) carry out continuous welding in the edge of adjacent steel band, (8) the inside and outside both sides of the weldering cutting edge of a knife or a sword of continuous welding place apply one deck hot melt adhesive separately, then at the external coating one deck of thermosol plastics, (9) plastics of the inside and outside both sides of butt welding seam crossing carry out cooling.
2. mould and be wound around welded pipe manufacture method by a kind of steel claimed in claim 1, it is characterized in that: the stiffening rib groove shape of described steel band can be arc, rectangle, triangle, polygonal.
3. mould and be wound around welded pipe manufacture method by a kind of steel claimed in claim 1, it is characterized in that: the inside and outside coating layer of described weld is to compress the weld joint of material embryo to adjacent steel belt edge by running roller, the shape of running roller can be convex or matrix and with floating installation to realize the perfect adaptation of plastic layer, glue-line, steel band.
4. mould and be wound around welded pipe manufacture method by a kind of steel claimed in claim 1, it is characterized in that: unless described pretreatment is for to carry out oil removing, rust cleaning limit, flash removed, surface coarsening, heat treated to steel band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210502270.3A CN103851277A (en) | 2012-11-30 | 2012-11-30 | Production method for steel-plastic warping and soldering pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210502270.3A CN103851277A (en) | 2012-11-30 | 2012-11-30 | Production method for steel-plastic warping and soldering pipe |
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| Publication Number | Publication Date |
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| CN103851277A true CN103851277A (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210502270.3A Pending CN103851277A (en) | 2012-11-30 | 2012-11-30 | Production method for steel-plastic warping and soldering pipe |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759485A (en) * | 2015-01-31 | 2015-07-08 | 湖南双马新材料科技有限公司 | Production method of single layer spiral bellows with flat interior surface and reinforcing ribs on external surface |
| CN105387288A (en) * | 2015-04-08 | 2016-03-09 | 刘嵩 | Plastic steel reinforcing rib and polyethylene compound pipe and manufacturing method thereof |
| CN108000858A (en) * | 2017-12-12 | 2018-05-08 | 安徽蕴通管业科技有限公司 | A kind of HDPE winding pipe production equipment |
| CN118180914A (en) * | 2024-05-17 | 2024-06-14 | 山东金诚联创管业股份有限公司 | Continuous production line of stainless steel winding pipe and production method thereof |
Citations (4)
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| CN200968450Y (en) * | 2006-11-09 | 2007-10-31 | 上海清远管业科技有限公司 | Corrugated section steel-plastic plastic composite wounded pipe |
| CN101907206A (en) * | 2010-06-13 | 2010-12-08 | 河北拓安管业有限公司 | Steel-belt occlusion welding plastic-coated composite pipe and preparation method thereof |
| DE102009031465A1 (en) * | 2009-07-01 | 2011-01-13 | Eugen Geyer Gmbh | Multi-channel tube has outer tube, where insert element is inserted in inner chamber for forming two passage channels, and one of multiple recesses of outer pipe forms press fit |
| CN102774012A (en) * | 2012-08-23 | 2012-11-14 | 山东联创塑胶有限公司 | Production method of steel-plastic composite pipe |
-
2012
- 2012-11-30 CN CN201210502270.3A patent/CN103851277A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200968450Y (en) * | 2006-11-09 | 2007-10-31 | 上海清远管业科技有限公司 | Corrugated section steel-plastic plastic composite wounded pipe |
| DE102009031465A1 (en) * | 2009-07-01 | 2011-01-13 | Eugen Geyer Gmbh | Multi-channel tube has outer tube, where insert element is inserted in inner chamber for forming two passage channels, and one of multiple recesses of outer pipe forms press fit |
| CN101907206A (en) * | 2010-06-13 | 2010-12-08 | 河北拓安管业有限公司 | Steel-belt occlusion welding plastic-coated composite pipe and preparation method thereof |
| CN102774012A (en) * | 2012-08-23 | 2012-11-14 | 山东联创塑胶有限公司 | Production method of steel-plastic composite pipe |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759485A (en) * | 2015-01-31 | 2015-07-08 | 湖南双马新材料科技有限公司 | Production method of single layer spiral bellows with flat interior surface and reinforcing ribs on external surface |
| CN105387288A (en) * | 2015-04-08 | 2016-03-09 | 刘嵩 | Plastic steel reinforcing rib and polyethylene compound pipe and manufacturing method thereof |
| CN108000858A (en) * | 2017-12-12 | 2018-05-08 | 安徽蕴通管业科技有限公司 | A kind of HDPE winding pipe production equipment |
| CN108000858B (en) * | 2017-12-12 | 2020-05-19 | 安徽蕴通管业科技有限公司 | HDPE winding pipe production facility |
| CN118180914A (en) * | 2024-05-17 | 2024-06-14 | 山东金诚联创管业股份有限公司 | Continuous production line of stainless steel winding pipe and production method thereof |
| CN118180914B (en) * | 2024-05-17 | 2024-09-20 | 山东金诚联创管业股份有限公司 | Continuous production line of stainless steel winding pipe and production method thereof |
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Application publication date: 20140611 |
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