CN107654746A - Wear-resisting steel skeleton plastic clad pipe and its manufacture method and plastics composite die - Google Patents
Wear-resisting steel skeleton plastic clad pipe and its manufacture method and plastics composite die Download PDFInfo
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- CN107654746A CN107654746A CN201710703902.5A CN201710703902A CN107654746A CN 107654746 A CN107654746 A CN 107654746A CN 201710703902 A CN201710703902 A CN 201710703902A CN 107654746 A CN107654746 A CN 107654746A
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- Prior art keywords
- layer
- wear
- density polyethylene
- steel wire
- high density
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Classifications
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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
- F16L9/14—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
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/151—Coating hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of wear-resisting steel skeleton plastic clad pipe and its manufacture method and plastics composite die, wherein wear-resisting steel skeleton plastic clad pipe internal layer is wearing layer, solves the wear-resisting problem of composite pipe, outer layer is high density polyethylene anticorrosive coating, ensure the outer Anticorrosive Character of pipeline, intermediate layer is enhancing steel wire weld casing play, ensures the bulk strength of tubing.Compound pipeline complex pipeline by special inside and outside plastics composite die realize wearing layer, high-density polyethylene layer and enhancing casing play three between it is compound and form interpenetrating structure, ensure the structural stability of tubing.
Description
Technical field
The present invention relates to a kind of wear-resisting steel skeleton plastic clad pipe, specifically steel skeleton plastic clad pipe internal layer is wear-resisting
Layer, pipeline can be used for the wear-resisting field for having particular/special requirement.The invention further relates to the manufacture method of the wear-resistant tubing and manufacture to fill
Put.
Background technology
Abrasion-proof pipe be in plumbing installations one it is highly important segment market, be mainly used in strength, the pumping thing such as slurry
The conveying of material.Because pumped (conveying) medium has the features such as high rigidity, flow velocity is fast, and flow is big, wear-resistant pipe can effectively reduce pumped (conveying) medium
Persistently producing impact, abrasion, corrosion etc. to tube wall for a long time makes pipeline produce the speed that fatigue causes to be worn through gradually.Domestic and international one
Directly without the research stopped to abrasion-proof pipe.
Steel skeleton plastic clad pipe（ZL94104509.9）Using welding steel mesh framework as enhancement layer, inside and outside is highly dense
Vinyon is spent, is the ideal conduit of water delivery and corrosive fluids.But in the hard thing of slurry body, particle, due to high density
Polyethylene wearproof is poor, and breakage easily occurs in inner-walls of duct.Constrain steel skeleton plastic clad pipe wear-resisting field application and
Development.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of good wear-resisting steel skeleton plastic clad pipe of wearability.
Present invention also offers the method for wear-resisting steel skeleton plastic clad pipe and special plastics composite die.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of wear-resisting steel skeleton plastic clad pipe, its
Key technology is：It is included located at middle steel wire weld skeleton enhancement layer, located at the wearing layer of internal layer and located at outer layer
High density polyethylene anticorrosive coating；
Steel wire weld skeleton enhancement layer, wearing layer and the high density polyethylene anticorrosive coating are synchronously combined into an entirety, described
Wearing layer and high density polyethylene anticorrosive coating form interpenetrating structure with steel wire weld skeleton enhancement layer.
The manufacture method of above-mentioned wear-resisting steel skeleton plastic clad pipe provided by the invention, it comprises the following steps：
1）By the warp and weft steel wire weld networking for enhancing；
2) by step 1）Obtained steel wire weld skeleton enhancement layer continues through plastics composite die, and wearing layer, high density are gathered
Ethene anticorrosive coat is continuously extruded, and three is combined into an entirety；
3) by step 2）Obtained tubing carries out cooling and shaping.
Plastics composite die provided by the invention, its internal layer extrusion die for including being used to convey wearing layer plastics, it is used for
Convey the outer layer extrusion dies of high density polyethylene anticorrosive coating plastics, the outer fashion-part located at outer layer extrusion die side, set
Interior shaping punishment in advance set in internal layer extrusion die side and the interior cooling steel cylinder located at interior shaping punishment in advance set side；It is described outer fixed
Type part and interior shaping punishment in advance set are enclosed to form forming cavity, and positive wire stitcher, the positive wire stitcher position are provided with the internal layer extrusion die
In the lower section of steel wire weld skeleton enhancement layer.
The interior shaping punishment in advance set outer wall is the taper that can increase material pressure in shaping cavity region.
It is using beneficial effect caused by above-mentioned technical proposal：
1st, the present invention is made up of middle welding wire skeleton enhancement layer, outer layer high-density polyethylene layer and internal layer wearing layer, three layers
For overall structure, three realizes IPN, can effectively improve the structural stability of tubing, the anti-wear performance with its inwall,
Meet the special application field that hard thing of slurry, particle etc. requires to conveyance conduit anti-wear performance.
2nd, the wear-resisting SRPE that the above method of the present invention is produced realizes enhancing casing play, height
The synchronous compound extruded of density polyethylene anticorrosive coat and wearing layer, the wherein continuous extrusion die of ectonexine plastics are inside and outside two lists
The continuous extrusion die of only plastics, it is possible to achieve to wearing layer and the thickness control of high-density polyethylene layer, while in mould
The IPN between wearing layer, high-density polyethylene layer and enhancing steel wire weld casing play three is completed, ensures the knot of composite pipe
Structure stability；Production technology different from covering high-density polyethylene layer after coating rubbing-layer after inwall or outer wall, what the present invention provided
The wear resistant polyethylene plastic composite pipe structure of production method production is more stable.
3rd, the inside and outside layer plastics extrusion die in this plastics composite abrasive can enter to different ring position plastic extrusion amounts
Row adjustment, by controlling the load of the inside and outside each position of layer extrusion die ring to control wearing layer thickness and high-density polyethylene
Alkene thickness degree and with IPN depth of the steel mesh framework in each position of ring, it is simple in construction, it is easy to use.
Brief description of the drawings
Fig. 1 is the wear-resisting steel skeleton plastic clad pipe sectional view of the present invention；
Fig. 2 is enhancing steel wire weld skeleton schematic diagram；
Fig. 3 is wearing layer, high-density polyethylene layer and the IPN interface schematic diagram for strengthening casing play three；
Fig. 4 is plastics composite die schematic diagram；
Wherein, 1, wearing layer, 2, high density polyethylene anticorrosive coating steel wire weld skeleton enhancement layer, 3, the enhancing of steel wire weld skeleton
Layer, 4, warp, 5, parallel, 6, solder joint, 7, outer layer extrusion die, 8, internal layer extrusion die, 9, outer fashion-part, 10, interior shaping
Punishment in advance set, 11, interior cooling steel cylinder, 12, positive wire stitcher, 13, forming cavity.
Embodiment
To make the above-mentioned purpose of the present invention, feature and advantage can be more obvious understandable, implements below in conjunction with the present invention
The drawings and specific embodiments in example, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that
Described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on the implementation in the present invention
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to
The scope of protection of the invention.
Referring to accompanying drawing 1, this multiple tube is included located at middle steel wire weld skeleton enhancement layer 3, located at the wearing layer 1 of internal layer
And the high density polyethylene anticorrosive coating 2 located at outer layer；
Steel wire weld skeleton enhancement layer 3, wearing layer 1 and the high density polyethylene anticorrosive coating 2 are synchronously combined into an entirety, institute
State wearing layer 1 and high density polyethylene anticorrosive coating 2 and form interpenetrating structure with steel wire weld skeleton enhancement layer 3.
The manufacture method of above-mentioned multiple tube is：Comprise the following steps:
1st, warp steel wire and parallel steel wire are subjected to welding and form a skeleton entirety；Referring to accompanying drawing 2, shown enhancing steel wire welded
Synthetism frame enhancement layer 3 is welded to form by warp 4 and parallel 5, and warp, the solder joint 6 of parallel are needed with some strength, meet tubing ring
While to intensity, ensure the longitudinal strength of tubing, while the hole pattern that steel wire weld is formed can form interpenetrating structure with plastics,
Ensure the stability of pipe structure.The step 1 middle longitude steel wire and being welded on special equipment for parallel steel wire are realized, with reference to specially
Sharp ZL94104509.9 is performed.Weld strength is controlled by welding current, if welding wire fusion penetration is excessively shallow, during extrusion molding
Steel-wire carcass easily snaps, and now needs to heighten welding current.If welding wire fusion penetration is too deep, steel wire easily burns in welding process
Disconnected, steel-wire carcass bearing strength reduces during extrusion molding, now needs to turn down welding current.
2nd, the welding wire skeleton that step 1 obtains is carried out by pipeline composite die and high density polyethylene (HDPE) and wearing layer
It is compound and synchronously extrude；Referring to accompanying drawing 3, it is wearing layer, high-density polyethylene layer and the IPN interface for strengthening casing play three
Schematic diagram, three realizes IPN while wearing layer thickness is ensured, can effectively improve the structural stability of tubing.In step 2
Welding wire skeleton and high density polyethylene (HDPE) and wearing layer compound and synchronously it is extruded through the continuous extrusion die of ectonexine plastics
Realize.The wherein inside and outside continuous extrusion die of layer plastics is inside and outside two continuous extrusion dies of single plastics, it is possible to achieve to resistance to
The thickness control of layer and high-density polyethylene layer is ground, while wearing layer, high-density polyethylene layer and enhancing steel are completed in mould
IPN between wire bond synthetism rack-layer three, ensure the structural stability of composite pipe.The inside and outside continuous extrusion die of layer plastics is just
It is to have two independent extruders, wearing layer extruder and high density polyethylene anticorrosive coating extruder set respective temperature respectively
Section, heating makes wearing layer plastics and high density polyethylene anticorrosive coating plastic molting into molten condition, respectively by respective mould
Shaping mouth mold is expressed into together with the steel wire weld skeleton enhancement layer of centre（That is the region of forming cavity 13）Interior, three is combined into
One entirety, continuous extrusion is into pipeline.
3rd, the pipeline for obtaining step 2 is cooled down the wear-resisting steel skeleton plastic clad pipe finally needed.The step 3
Inwall is cooled down using interior cooling steel cylinder 11, i.e., the inner wall anti-corrosive layer segment that internal layer extrusion die 8 is extruded, in multiple tube
Wall carries out cooling and shaping, and outer wall is that the outer wall high density polyethylene anticorrosive coating that outer layer extrusion die 7 is extruded is directly real using water cooling
Now to the cooling of pipeline outer wall, fixed length cutting is carried out as needed.
Referring to accompanying drawing 4, this plastics composite die it include be used for convey wearing layer plastics internal layer extrusion die 8, be used for
Convey the outer layer extrusion dies 7 of high density polyethylene anticorrosive coating plastics, the outer fashion-part 9 located at the side of outer layer extrusion die 7,
Interior shaping punishment in advance located at the side of internal layer extrusion die 8 covers 10 and the interior cooling steel cylinder of 10 sides is covered located at interior shaping punishment in advance
11；The outer fashion-part 9 and interior shaping punishment in advance set 10 enclose to form forming cavity 13, are provided with just in the internal layer extrusion die 8
Wire stitcher 12, the positive wire stitcher 12 are located at the lower section of steel wire weld skeleton enhancement layer.It is to increase that the interior shaping punishment in advance, which covers 10 outer walls,
The taper of material pressure in the big region of forming cavity 13.
Inside and outside layer plastics extrusion die can be adjusted to different ring position plastic extrusion amounts, inside and outside by controlling
The load control wearing layer thickness and high-density polyethylene layer thickness of layer extrusion die ring each position and with steel mesh bone
IPN depth of the frame in each position of ring.
Positive wire stitcher 12 is in the position among relatively to ensure to strengthen steel mesh framework 3, and it is located at recombination region forming cavity
Before 13, support is played to enhancing steel mesh framework and positive round acts on, while the relative position of fixed enhancing steel mesh framework.
Outer fashion-part 9 is outer profiled part, the high density polyethylene (HDPE) of outer layer is strengthened enhancing steel mesh framework to centre and increases
Strong layer 3 flows and fills steel mesh hole, and interior shaping punishment in advance set 10 makes internal layer wear-resistant plastic to centre along outlet pipe direction into upward slope trend
Enhancing enhancing steel mesh framework laminar flow simultaneously fills steel mesh hole.
Outer pipe wall goes out to be immersed directly in water after fashion-part 9 to be cooled down, and pipe material inner wall passes through interior cooling steel
Cylinder 11 is shaped and cooled down, and the interior inside of cooling steel cylinder 11 is recirculated water.Fixed length cutting is carried out as needed.
Referring to accompanying drawing 4, its forming process is：Steel wire weld networking, internal layer extrusion die 8 are continuously extruded into wearing layer first
1, outer layer extrusion die 7 continuously extrudes high density polyethylene anticorrosive coating 2, and the enhancing steel wire weld skeleton enhancement layer 3 being welded connects
Continuous pass through composite die, three's progress is compound in region steel-plastics composite pipe forming cavity 13, and inside and outside layer plastics extrusion die can be with
Different ring position plastic extrusion amounts are adjusted, by the load for controlling the inside and outside each position of layer extrusion die ring
Control wearing layer thickness and high density polyethylene anticorrosive coating thickness and with IPN depth of the steel mesh framework in each position of ring.
It is not simply to be bonded between three layers of composite pipe of the present invention, but is synchronously combined into an entirety, while plastics
Interpenetrating structure is formed with enhancing skeleton, ensure that the structural stability of tubing.Wear-resisting steel skeleton plastic clad pipe internal layer is wear-resisting
Layer, solves the wear-resisting problem of composite pipe, and outer layer is high density polyethylene anticorrosive coating, ensures the outer Anticorrosive Character of pipeline, middle
Layer is enhancing steel wire weld casing play, ensures the bulk strength of tubing.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or be created using the present invention
Make.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from the spirit or scope of the invention.Cause
This, the invention is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (4)
- A kind of 1. wear-resisting steel skeleton plastic clad pipe, it is characterised in that：It is included located at middle steel wire weld skeleton enhancement layer （3）, located at the wearing layer of internal layer（1）And the high density polyethylene anticorrosive coating located at outer layer（2）；The steel wire weld skeleton enhancement layer（3）, wearing layer（1）And high density polyethylene anticorrosive coating（2）Synchronously it is combined into one It is overall, the wearing layer（1）And high density polyethylene anticorrosive coating（3）With steel wire weld skeleton enhancement layer（3）Form interpenetrating structure.
- 2. the manufacture method of the wear-resisting steel skeleton plastic clad pipe of claim 1, it is characterised in that：It comprises the following steps：1）By the warp and weft steel wire weld networking for enhancing；2) by step 1）Obtained steel wire weld skeleton enhancement layer continues through plastics composite die, and wearing layer, high density are gathered Ethene anticorrosive coat is continuously extruded, and three is combined into an entirety；3) by step 2）Obtained tubing carries out cooling and shaping.
- 3. the plastics composite die described in claim 2, it is characterised in that:Its internal layer for including being used to convey wearing layer plastics squeezes Go out mould (8), the outer layer extrusion die (7) for conveying high density polyethylene anticorrosive coating plastics, located at outer layer extrusion die (7) The outer fashion-part of side（9）, interior shaping punishment in advance set (10) located at internal layer extrusion die (8) side and be molded located at interior The interior cooling steel cylinder (11) of material set (10) side；The outer fashion-part（9）Enclose to form shaping with interior shaping punishment in advance set (10) Chamber（13）, the internal layer extrusion die (8) is interior to be provided with positive wire stitcher (12), and the positive wire stitcher (12) is located at the enhancing of steel wire weld skeleton The lower section of layer.
- 4. plastics composite die according to claim 3, it is characterised in that:Described interior shaping punishment in advance set (10) outer wall is can Increase forming cavity（13）The taper of material pressure in region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710703902.5A CN107654746B (en) | 2017-08-16 | 2017-08-16 | Wear-resisting steel skeleton plastic clad pipe and its manufacturing method and plastics composite die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710703902.5A CN107654746B (en) | 2017-08-16 | 2017-08-16 | Wear-resisting steel skeleton plastic clad pipe and its manufacturing method and plastics composite die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107654746A true CN107654746A (en) | 2018-02-02 |
| CN107654746B CN107654746B (en) | 2019-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710703902.5A Active CN107654746B (en) | 2017-08-16 | 2017-08-16 | Wear-resisting steel skeleton plastic clad pipe and its manufacturing method and plastics composite die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709869A (en) * | 2020-11-24 | 2021-04-27 | 六安中财管道科技有限公司 | Wear-resistant steel wire mesh framework composite pipe and preparation process thereof |
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| CN201314416Y (en) * | 2008-12-19 | 2009-09-23 | 王利群 | Compound steel pipe with outer wall wound with plastic tape and inner wall sprayed with plastic, as well as process equipment |
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| CN201934811U (en) * | 2011-03-11 | 2011-08-17 | 华创天元实业发展有限责任公司 | Highly abrasion-resistant steel framed polyethylene plastic composite pipe |
| CN202937898U (en) * | 2012-12-10 | 2013-05-15 | 江苏双腾管业有限公司 | Wear-resisting composite pipe |
| CN105128323A (en) * | 2015-07-29 | 2015-12-09 | 深圳市华瀚科技控股有限公司 | Composite reinforced winding-type pressure pipe and forming method thereof |
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2017
- 2017-08-16 CN CN201710703902.5A patent/CN107654746B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201314416Y (en) * | 2008-12-19 | 2009-09-23 | 王利群 | Compound steel pipe with outer wall wound with plastic tape and inner wall sprayed with plastic, as well as process equipment |
| CN101725774A (en) * | 2009-12-17 | 2010-06-09 | 河北金菱管业股份有限公司 | Mine wear-resistant composite metal plastic pipe, special preparation equipment thereof and preparation method thereof |
| CN201934811U (en) * | 2011-03-11 | 2011-08-17 | 华创天元实业发展有限责任公司 | Highly abrasion-resistant steel framed polyethylene plastic composite pipe |
| CN202937898U (en) * | 2012-12-10 | 2013-05-15 | 江苏双腾管业有限公司 | Wear-resisting composite pipe |
| CN105128323A (en) * | 2015-07-29 | 2015-12-09 | 深圳市华瀚科技控股有限公司 | Composite reinforced winding-type pressure pipe and forming method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709869A (en) * | 2020-11-24 | 2021-04-27 | 六安中财管道科技有限公司 | Wear-resistant steel wire mesh framework composite pipe and preparation process thereof |
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| CN107654746B (en) | 2019-08-23 |
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