CN113263760A - Mesh steel belt polyethylene composite pipe and production method thereof - Google Patents
Mesh steel belt polyethylene composite pipe and production method thereof Download PDFInfo
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- CN113263760A CN113263760A CN202110336813.8A CN202110336813A CN113263760A CN 113263760 A CN113263760 A CN 113263760A CN 202110336813 A CN202110336813 A CN 202110336813A CN 113263760 A CN113263760 A CN 113263760A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 103
- 239000010959 steel Substances 0.000 title claims abstract description 103
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 54
- -1 polyethylene Polymers 0.000 title claims abstract description 54
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 54
- 239000002131 composite material Substances 0.000 title claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000004513 sizing Methods 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 10
- 238000005516 engineering process Methods 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims description 26
- 238000013329 compounding Methods 0.000 claims description 18
- 238000001125 extrusion Methods 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 239000004595 color masterbatch Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 238000009966 trimming Methods 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 239000010960 cold rolled steel Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 238000010147 laser engraving Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 229920013716 polyethylene resin Polymers 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims 1
- 229920003023 plastic Polymers 0.000 abstract description 22
- 239000004033 plastic Substances 0.000 abstract description 22
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 238000005336 cracking Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 3
- 229910001141 Ductile iron Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 231100000956 nontoxicity Toxicity 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
-
- 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
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
-
- 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
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
-
- 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
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2597/00—Tubular articles, e.g. hoses, pipes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a mesh steel belt polyethylene composite pipe, which comprises a core pipe made of inner polyethylene, a steel belt reinforcing layer made of steel belts and an anticorrosive layer made of outer polyethylene, wherein the core pipe is made of inner polyethylene; the inner polyethylene layer, the outer polyethylene layer and the steel belt reinforcing layer are fused and compounded into an integrated structure through a sizing system technology; the strength, rigidity and impact resistance of the composite pipe exceed those of plastic pipes; the composite pipe has the same corrosion resistance as a plastic pipe through the arranged anticorrosive layer, and has high use temperature and corrosion resistance and low heat conductivity coefficient. The pipes with different pressure grades can be manufactured by adjusting the thickness, the aperture and the number of the steel belts. The pipe has high safety and reliability, and the service life can reach 50 years under normal conditions. Meanwhile, the rapid stress cracking of the plastic pipe is overcome. The whole weight is light, the consumptive material is few, and equal design pressure can save 30% polyethylene material with the bore tubular product. The pipe has strong rigidity and high deformation resistance, and can be installed and processed in an overhead manner.
Description
Technical Field
The invention belongs to the technical field of high-performance composite pipes, and particularly relates to a mesh steel belt polyethylene composite pipe and a production method thereof.
Background
The traditional water supply, gas and chemical pipe network is mainly made of traditional materials such as steel pipes, cast iron pipes and the like. From the middle of the 20 th century, plastic pipes are gradually applied to water supply, gas and chemical pipe networks in all countries of the world to replace traditional pipes, and the plastic pipes all over the world keep a higher growth rate. According to statistical data, the investment of urban water supply facilities in China increases at a speed of more than 12% per year from 2010 to 2018, and the investment of various regions on urban water supply and gas pipe networks tends to increase by combining the development of current urban construction and the increase of urban population.
At present, due to the rapid and vigorous development of urban construction and industrial energy in China, urban and rural water supply integration and remote water transfer engineering are implemented in large quantity, the investment of the country in the hydraulic engineering field is continuously strengthened, and the pipeline safety in the industrial field is improved to be the national safety strategy, the demand of high-specification, high-pressure, high-quality and high-safety pipes is greatly increased, the annual market growth rate reaches 20% -30%, the plastic pipes cannot meet the requirements of various industries on large-diameter pipes and medium-high pressure pipes in terms of strength, rigidity and pressure bearing, and relevant manufacturers at home and abroad successively release various types of plastic composite pipes in order to adapt to market changes, but the plastic composite pipes have obvious defects and shortcomings. In view of this, our company has introduced a new composite pipe-a mesh steel belt polyethylene composite pipe.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the technical scheme that the invention provides a mesh steel belt polyethylene composite pipe, which comprises a core pipe made of inner layer polyethylene, a steel belt reinforcing layer made of steel belts and an anticorrosive layer made of outer layer polyethylene; the inner layer polyethylene, the outer layer polyethylene and the steel belt reinforcing layer are fused and compounded into an integral structure through a diameter determining system technology.
Preferably, the steel strip reinforcing layer is punched at a high speed to form the perforated plate strip.
A production method of a mesh steel belt polyethylene composite pipe comprises the following steps:
s1, selecting raw materials and inspecting the raw materials; the method comprises the steps of inspecting a steel belt, color master batches and polyethylene resin;
s2, punching the steel strip; the low-carbon cold-rolled (or hot-rolled) steel strip is punched at high speed according to specific requirements to prepare a pore screen plate strip:
s3, precisely trimming the mesh plate strip; precisely trimming the perforated mesh plate punched in the step S2;
s4, roughly forming the thin-walled steel pipe with the holes; roughly forming the precisely trimmed mesh plate strip by using whole-pipe forming equipment to form a thin-walled steel pipe with holes;
s5, fine forming of the thin-walled steel pipe with the holes; performing finish machining forming on the thin-walled steel pipe with the holes roughly formed in the step S4 through a whole pipe forming device process;
s6, longitudinal seam welding, namely performing longitudinal seam welding on the thin-wall steel pipe with the hole after the fine forming treatment in the step S5 by adopting a direct-current pulse argon arc welding machine;
s7, welding compensation, namely detecting the welding condition of the longitudinal joint by using a welding system and simultaneously performing welding compensation;
s8, high-frequency preheating is carried out on the thin-walled steel pipe with the holes after welding compensation in the step S7;
s9, extruding and compounding, namely, compounding the thin-walled steel pipe with the hole, the color master batch and the polyethylene material which are preheated at high frequency, and extruding and compounding through a special extrusion compounding machine set;
s10, sizing the composite pipe, and spraying, cooling and sizing the extruded and compounded composite pipe through a sizing system;
and S11, laser engraving, cutting into finished products with fixed length, and warehousing after the finished products are qualified.
Preferably, the inspection of the steel strip in the step S1 includes a steel strip surface condition requirement and a steel strip performance requirement, and the steel strip surface condition requirement is as follows: the paint is free of rust, oxide skin and dirt, and the surface is smooth;
preferably, the performance requirement of the low-carbon cold-rolled steel strip adopted in the step S1 meets the requirement of YB/T5059.
Preferably, the performance requirement of the low-carbon hot-rolled steel strip adopted in the step S1 meets the requirement of GB/T3524
Preferably, the high-frequency preheating temperature of the step S9 reaches 180-200 ℃.
Preferably, in step S10, the extrusion temperature of the dedicated extrusion compounding machine set is controlled to 165 ℃ to 200 ℃ during extrusion compounding.
Preferably, after the steel strip is preheated in step S10, the molten polyethylene is inserted into the inner and outer surfaces of the steel strip through the meshes under the action of pressure by using an extruder die to form the core tube and the anticorrosive layer of the mesh steel strip polyethylene composite tube.
Preferably, the composite pipe cooled and formed in step S11 is placed into a cutting machine for cutting, so as to obtain a mesh steel belt polyethylene composite pipe with a preset length.
Has the advantages that: compared with the prior art, the invention has the advantages and positive effects that the mesh steel belt polyethylene composite pipe prepared by the method has the following advantages,
1. has the advantages of strength, rigidity and impact resistance exceeding those of plastic pipes, low linear expansion coefficient and creep resistance similar to those of steel pipes, and the like.
2. Has the same corrosion resistance as that of the plastic pipe, high use temperature and corrosion resistance and low heat conductivity coefficient.
3. The pipes with different pressure grades can be manufactured by adjusting the thickness, the aperture and the number of the steel belts.
4. The pipe has high safety and reliability, and the service life can reach 50 years under normal conditions.
5. The design structure is excellent, the reinforced framework and the inner and outer layer plastics are mutually inserted and contained into a whole, and the trouble of peeling the inner and outer layer plastics and the reinforced body is avoided.
6. The installation is convenient, the pipeline connection adopts the electric heat welding pipe fitting, the anti axial tension ability is strong, the connection technology is mature and reliable, the pipe fitting variety is complete, and the pipe fitting can be connected with other pipelines in a grid-connected mode.
7. The quick stress cracking of the plastic pipe is overcome, and the phenomenon of quick stress cracking which is difficult to overcome by the plastic pipe cannot occur because the pipe is formed by compounding two materials.
8. The weight is light, the consumptive material is few, and equal design pressure can save 30% polyethylene material with the bore tubular product.
9. Excellent comprehensive performance, sanitation and no toxicity, and is the best substitute for steel pipes, nodular cast iron pipes and plastic pipes.
10. The pipe has strong rigidity and high deformation resistance, and can be installed and processed in an overhead manner.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic view of an overall structure of a mesh steel belt polyethylene composite pipe provided in this embodiment.
In the above figures, 1-core tube, 2-steel band enhancement layer, 3-anticorrosion layer.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Examples
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.
In the embodiment, as can be seen from the attached drawings of the specification, the scheme provides a mesh steel belt polyethylene composite pipe, which comprises a core pipe 1 made of inner polyethylene, a steel belt reinforcing layer 2 made of steel belts, and an anticorrosive layer 3 made of outer polyethylene; the inner polyethylene layer, the outer polyethylene layer and the steel belt reinforcing layer are fused and compounded into an integral structure through a sizing system technology.
Further, the steel belt reinforcing layer is punched at a high speed to form the meshed plate strip.
A production method of a mesh steel belt polyethylene composite pipe comprises the following steps:
s1, selecting raw materials and inspecting the raw materials; the method comprises the steps of inspecting a steel belt, color master batches and polyethylene resin;
s2, punching the steel strip; punching a low-carbon cold-rolled (or hot-rolled) steel strip at a high speed according to specific requirements to prepare a hole screen plate strip;
s3, precisely trimming the mesh plate strip; precisely trimming the perforated mesh plate punched in the step S2;
s4, roughly forming the thin-walled steel pipe with the holes; roughly forming the precisely trimmed mesh plate strip by using whole-pipe forming equipment to form a thin-walled steel pipe with holes;
s5, fine forming of the thin-walled steel pipe with the holes; performing finish machining forming on the thin-walled steel pipe with the holes roughly formed in the step S4 through a whole pipe forming device process;
s6, longitudinal seam welding, namely performing longitudinal seam welding on the thin-wall steel pipe with the hole after the fine forming treatment in the step S5 by adopting a direct-current pulse argon arc welding machine;
s7, welding compensation, namely detecting the welding condition of the longitudinal joint by using a welding system and simultaneously performing welding compensation;
s8, high-frequency preheating is carried out on the thin-walled steel pipe with the holes after welding compensation in the step S7;
s9, extruding and compounding, namely, compounding the thin-walled steel pipe with the hole, the color master batch and the polyethylene material which are preheated at high frequency, and extruding and compounding through a special extrusion compounding machine set;
s10, sizing the composite pipe, and spraying, cooling and sizing the extruded and compounded composite pipe through a sizing system;
and S11, laser engraving, cutting into finished products with fixed length, and warehousing after the finished products are qualified.
Further, the inspection of the steel strip in the step S1 includes a steel strip surface condition requirement and a steel strip performance requirement, where the steel strip surface condition requirement is as follows: the paint is free of rust, oxide skin and dirt, and the surface is smooth;
furthermore, the performance requirement of the low-carbon cold-rolled steel strip adopted in the step S1 meets the requirement of YB/T5059.
Furthermore, the performance requirement of the low-carbon hot-rolled steel strip adopted in the step S1 meets the requirement of GB/T3524
Further, the high-frequency preheating temperature of the step S9 reaches 180-200 ℃.
Further, in step S10, the extrusion temperature of the extrusion compounding machine set is controlled to 165-200 ℃.
Further, in the step S10, the steel strip is preheated and passes through the extruder die, and the molten polyethylene is inserted into the inner and outer surfaces of the steel strip through the meshes under the action of pressure to form the core tube and the anticorrosive layer of the mesh steel strip polyethylene composite tube.
Further, the composite pipe cooled and formed in the step S11 is placed into a cutting machine for cutting, so as to obtain the mesh steel belt polyethylene composite pipe with the preset length.
The mesh steel belt polyethylene composite pipe prepared by the method has the advantages that,
1. has the advantages of strength, rigidity and impact resistance exceeding those of plastic pipes, low linear expansion coefficient and creep resistance similar to those of steel pipes, and the like.
2. Has the same corrosion resistance as that of the plastic pipe, high use temperature and corrosion resistance and low heat conductivity coefficient.
3. The pipes with different pressure grades can be manufactured by adjusting the thickness, the aperture and the number of the steel belts.
4. The pipe has high safety and reliability, and the service life can reach 50 years under normal conditions.
5. The design structure is excellent, the reinforced framework and the inner and outer layer plastics are mutually inserted and contained into a whole, and the trouble of peeling the inner and outer layer plastics and the reinforced body is avoided.
6. The installation is convenient, the pipeline connection adopts the electric heat welding pipe fitting, the anti axial tension ability is strong, the connection technology is mature and reliable, the pipe fitting variety is complete, and the pipe fitting can be connected with other pipelines in a grid-connected mode.
7. The quick stress cracking of the plastic pipe is overcome, and the phenomenon of quick stress cracking which is difficult to overcome by the plastic pipe cannot occur because the pipe is formed by compounding two materials.
8. The weight is light, the consumptive material is few, and equal design pressure can save 30% polyethylene material with the bore tubular product.
9. Excellent comprehensive performance, sanitation and no toxicity, and is the best substitute for steel pipes, nodular cast iron pipes and plastic pipes.
10. The pipe has strong rigidity and high deformation resistance, and can be installed and processed in an overhead manner.
In addition, it should be noted that the electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device which is controlled by a computer or the like.
Although the present invention has been described with reference to the above embodiments, it should be understood that the present invention is not limited to the above embodiments, and other embodiments and equivalents thereof may be substituted for those skilled in the art without departing from the scope of the present invention.
Claims (10)
1. A mesh steel belt polyethylene composite pipe is characterized by comprising a core pipe made of inner polyethylene, a steel belt reinforcing layer made of steel belts and an anticorrosive layer made of outer polyethylene; the inner polyethylene layer, the outer polyethylene layer and the steel belt reinforcing layer are fused and compounded into an integral structure through a sizing system technology.
2. The perforated steel belt polyethylene composite pipe according to claim 1, wherein the steel belt reinforcement layer is punched at high speed to form a perforated plate strip.
3. A method for producing a mesh steel belt polyethylene composite pipe according to claim 1, characterized by comprising the steps of:
s1, selecting raw materials and inspecting the raw materials; the method comprises the steps of inspecting a steel belt, color master batches and polyethylene resin;
s2, punching the steel strip; punching a low-carbon cold-rolled (or hot-rolled) steel strip at a high speed according to specific requirements to prepare a mesh plate strip;
s3, precisely trimming the mesh plate strip; precisely trimming the perforated mesh plate punched in the step S2;
s4, roughly forming the thin-walled steel pipe with the holes; roughly forming the precisely trimmed mesh plate strip by using whole-pipe forming equipment to form a thin-walled steel pipe with holes;
s5, fine forming of the thin-walled steel pipe with the holes; performing finish machining forming on the thin-walled steel pipe with the holes roughly formed in the step S4 through a whole pipe forming device process;
s6, longitudinal seam welding, namely performing longitudinal seam welding on the thin-walled steel pipe with the hole after the fine forming treatment in the step S5 by adopting a direct-current pulse argon arc welding machine;
s7, welding compensation, namely detecting the welding condition of the longitudinal joint by using a welding system and simultaneously performing welding compensation;
s8, high-frequency preheating is carried out on the thin-walled steel pipe with the holes after welding compensation in the step S7;
s9, extruding and compounding, namely, matching the thin-walled steel pipe with the holes after high-frequency preheating, color master batch and polyethylene material, and extruding and compounding through a special extrusion compounding machine set;
s10, sizing the composite pipe, and spraying, cooling and sizing the extruded and compounded composite pipe through a sizing system;
and S11, laser engraving, cutting into finished products with fixed length, and warehousing after the finished products are qualified.
4. The method for producing a mesh steel belt polyethylene composite pipe according to claim 3, wherein the inspection of the steel belt in the step S1 includes the requirements of the surface state of the steel belt and the performance of the steel belt, and the requirements of the surface state of the steel belt are as follows: no rust, scale and dirt, and smooth surface.
5. The method for producing the mesh steel strip polyethylene composite pipe as claimed in claim 3, wherein the performance requirement of the low-carbon cold-rolled steel strip adopted in the step S1 meets the requirement of YB/T5059.
6. The method for producing the mesh steel strip polyethylene composite pipe according to the claim 3, wherein the performance requirement of the low-carbon hot-rolled steel strip adopted in the step S1 meets the requirement of GB/T3524.
7. The method for producing a mesh steel belt polyethylene composite pipe according to claim 3, wherein the step S9 is performed by high frequency preheating at 180-200 ℃.
8. The method for producing a mesh steel belt polyethylene composite pipe according to claim 3, wherein in step S10, the extrusion temperature of the special extrusion compounding machine set for extrusion compounding is controlled at 165-200 ℃.
9. The method for producing the mesh steel belt polyethylene composite pipe according to claim 3, wherein the steel belt is preheated in the step S10 and passes through the extruder die, and the molten polyethylene is inserted into the inner and outer surfaces of the steel belt through the meshes under the action of pressure to form the core pipe and the anticorrosive layer of the mesh steel belt polyethylene composite pipe.
10. The method for producing the mesh steel belt polyethylene composite pipe according to claim 3, wherein the composite pipe cooled and formed in the step S11 is placed into a cutting machine for cutting to obtain the mesh steel belt polyethylene composite pipe with a preset length.
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| CN202110336813.8A CN113263760A (en) | 2021-03-23 | 2021-03-23 | Mesh steel belt polyethylene composite pipe and production method thereof |
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| CN202110336813.8A CN113263760A (en) | 2021-03-23 | 2021-03-23 | Mesh steel belt polyethylene composite pipe and production method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877137A (en) * | 2021-12-30 | 2022-08-09 | 菏泽三垒塑业股份有限公司 | Large-diameter mesh steel belt polyethylene composite pipe and manufacturing method thereof |
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2021
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| CN208215980U (en) * | 2018-04-18 | 2018-12-11 | 四川金石东方新材料设备股份有限公司 | Hole pattern steel strip reinforced multiple tube process units |
| CN209633708U (en) * | 2019-03-15 | 2019-11-15 | 苏州星倍德管道设备有限公司 | A kind of production line of hole pattern steel strip reinforced multiple tube |
| CN210590488U (en) * | 2019-08-28 | 2020-05-22 | 苏州星倍德管道设备有限公司 | External forming die for hole-net steel skeleton reinforced composite pipe |
Cited By (1)
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| CN114877137A (en) * | 2021-12-30 | 2022-08-09 | 菏泽三垒塑业股份有限公司 | Large-diameter mesh steel belt polyethylene composite pipe and manufacturing method thereof |
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