CN1085810C - Reinforced plastic pipe and its preparation method - Google Patents
Reinforced plastic pipe and its preparation method Download PDFInfo
- Publication number
- CN1085810C CN1085810C CN99101666A CN99101666A CN1085810C CN 1085810 C CN1085810 C CN 1085810C CN 99101666 A CN99101666 A CN 99101666A CN 99101666 A CN99101666 A CN 99101666A CN 1085810 C CN1085810 C CN 1085810C
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- layer
- muscle
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- pipe
- extruder
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Abstract
The present invention relates to a reinforced enhanced plastic pipe and a preparation method thereof. The pipe wall plastic of the pipe is composed of at least two layers; each layer uses homogeneous plastic with different formulas; annular ribs and/or longitudinal ribs are added in the plastic. The method comprises the steps that the longitudinal ribs continuously penetrate a mould; hot melt plastic extruded from an extruder is formed, cooled, grooved and wound round the annular ribs, and then is coated with the plastic with different formulas to form the multilayer reinforced enhanced plastic pipe. The plastic pipe has the advantages of high strength, small inner stress, low cost and high quality.
Description
The present invention relates to a kind of preparation method of reinforced plastic pipe.
The thermoplastic pipes corrosion resistance and good, the pipe internal resistance is little, but its tensile strength is low, and along with the increase of pressure and caliber, it is particularly outstanding that this shortcoming seems.For this reason, people have developed multiple reinforcement composite pipe and have overcome this shortcoming.
ZL 93100742.9 discloses a kind of " ribbed pressure-resistant plastic tube ", and it is that outer wall at plastic tube is provided with high-intensity ring muscle and/or vertical muscle, thereby has improved the intensity of plastic tube greatly.ZL 94209612.6 discloses a kind of " metal frame---plastic composition pipeline ", is at half place of plastic tube internal diameter and external diameter sum netted tubular Steel Skeleton to be set.This skeleton is formed by above-mentioned ring muscle and vertical muscle spot welding.Its shortcoming is a complex process, and consumptive material is many, pipe valency height.ZL94104509.9 discloses a kind of " making metal frame---the method and the device of plastic composition pipeline ", its method is: pressing winding screw wire rod on the even longitudinal steel bar of arranging of circumference, to indulge the ring muscle with the spot welding mode and fix and make the tubular Framework Of Steel Reinforcement, it is sent into forming cavity with plastics be shaped to plastic pipe with metal frame, its device comprises plastic extruder, cooling mechanism, tractor and for implementing the cylinder mechanism of this invention wound wire, welding electrode and pipeline forming cavity, when being plastic cool, the shortcoming of said method shrinks, the steel mesh frame limits its contraction, so there is very big internal stress in the tube wall.
ZL 94245709.9 disclosed composite pipe preparation methods are: earlier the muscle material is wrapped the plastics identical with the tubing material outward, becoming plastic tube outer wall car to go out the muscle groove then, to wrap the muscle material outer surface of plastic layer again and coat Bond, and be bonded as integral body in the muscle groove of embedding tube wall; Its shortcoming is that muscle material and tubing are easily thrown off when negative pressure occurring in the pipe.
The objective of the invention is to develop the preparation method of a kind of intensity height, internal stress is little, applicability is wide reinforced plastic pipe.
The method for preparing composite plastic pipe of the present invention is: different pipe layers are extruded by different extruders, and different extruders are extruded the hot melting plastic of different formulations, and the extruder of innermost layer adopts right-angle handpiece, imbed the tube wall internal layer so that vertical muscle penetrates runner; The extruder of successive layer all adopts the right-angle handpiece coating mould, so that wrap and be melt into one layer by layer mutually; By the muscle machine that twines that rotates around pipe, car goes out spiral muscle groove to cooled inner tube outer surface in the process of traction, groove depth and hoop muscle footpath basically identical; Twine the muscle machine and also will encircle muscle and embed in the above-mentioned groove, in the coating mould of successive layer by the plastics wrapping of outer fusion and fuse into one.In addition, for overcoming, set up the device that prevents that inner tube from rotating because of get on the bus spiral chute and twine ring moment of torsion to pipe during muscle of pipe.
Set forth product of the present invention and method particularly for further clear, accompanying drawings is as follows:
Fig. 1 is the profile diagram of reinforced plastic pipe of the present invention.
Fig. 2 is a product cross-section profile of the present invention.
Fig. 3 is the equipment schematic representation of the inventive method.
As shown in the figure, 1 is inner plastic, and 2 are vertical muscle, and 3 are the ring muscle, and 4 is outer layer plastic, and 5 are vertical muscle plate rail, 6 is the 1# extruder, and 7 is cooling unit, and 8 is anti-rotation device, and 9 for twining ring muscle machine, and 10 is the 2# extruder, 11 are the spray water tank, and 12 is traction gear, and 13 is cutting machine, and 14 is pipe support, and 15 is tubing.
As depicted in figs. 1 and 2, this product constitutes by encircling muscle 3 and/or vertical muscle 2 and thermoplastic inner layer plastics 1 and outer layer plastic 4, is made of two-layer at least, and interlayer fuses mutually.
As shown in Figure 3, preparation method of the present invention is as follows: vertical muscle 2 is sent into extruder 6 by uniform circumferential distance from vertical muscle frame 5, plastics 1 after molten are shaped to internal layer tubing in pipe mold, through cooling unit 7 with the plastic tube hardening by cooling, anti-rotation device 8 is guaranteed not rotate in the plastic tube traction, and Stetch Wrapping Machine 9 will encircle behind the recessing on pipe in the muscle groove that muscle 3 is wrapped in plastic tube; Enter the 2# extruder again, parcel outer layer plastic, cooling; The coating process can repeat repeatedly to carry out, and forms multi-layer tubes, after the cooling of spraying water case is advanced the tubing traction with traction gear 12, cuts into certain length with cutting machine 13 as required, sends finished product tubing 15 standby along pipe support 14.
Embodiment 1
The double-deck riffled tube of a kind of high density polyethylene (HDPE) (HDPE), external diameter 200mm, total wall thickness 6.2mm, the thick 1.5mm of external coating wherein is added with 2.5% carbon black; Interior layer thickness 4.7mm, pure HDPE, white.Two-layer fusing into one, vertical muscle is included in internal layer, and vertical muscle is the steel wire of 24 0.8mm, and the ring muscle is a diameter 1.0mm steel wire, its spacing 5mm, the rated working pressure of tubing is 1.6MPa.Making method such as above-mentioned.
The double-deck ring of a kind of HDPE muscle plastic tube, external diameter 110mm, total thickness 3mm, outer 1.2mm is added with 2.5% carbon black, black; Interior bed thickness 1.8mm, white, two-layer fusing into one do not have vertical muscle, ring reinforcing wire diameter 0.7mm, spacing 5mm, rated working pressure 1.6MPa.Making method is with embodiment 1.
Preparation method of the present invention adopts the extruder more than two, wraps up the second layer again after the internal layer cooling, and the internal stress in the plastics is little.
Claims (1)
1. the preparation method of a reinforced plastic pipe, it is characterized in that: different pipe layers are extruded by different extruders, different extruders is extruded the hot melting plastic of different formulations, and the extruder of innermost layer adopts right-angle handpiece, imbeds the tube wall internal layer so that vertical muscle penetrates runner; The extruder of successive layer all adopts the right-angle handpiece coating mould, so that wrap and be melt into one layer by layer mutually; In the process of traction, go out spiral muscle groove on the inner tube of cooling after-hardening, groove depth and hoop muscle footpath basically identical by the muscle locomotive that twines that rotates around pipe; Ring muscle machine embeds the hoop muscle in the above-mentioned groove, by the plastics wrapping of outer fusion and fuse into one, coats process such as method infusion layer by layer in the coating mould of successive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99101666A CN1085810C (en) | 1999-02-11 | 1999-02-11 | Reinforced plastic pipe and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99101666A CN1085810C (en) | 1999-02-11 | 1999-02-11 | Reinforced plastic pipe and its preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1263223A CN1263223A (en) | 2000-08-16 |
| CN1085810C true CN1085810C (en) | 2002-05-29 |
Family
ID=5270594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99101666A Expired - Lifetime CN1085810C (en) | 1999-02-11 | 1999-02-11 | Reinforced plastic pipe and its preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1085810C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539223B (en) * | 2008-11-28 | 2011-04-27 | 潍坊中云科研有限公司 | Double-walled plastic pipeline manufacturing method and double-walled plastic pipeline extruding mould |
| CN103174640B (en) * | 2012-04-25 | 2016-05-04 | 新疆泓科节水设备制造有限公司 | Muscle is moulded composite well pump line |
| CN103447833B (en) * | 2013-08-12 | 2016-08-10 | 重庆江增船舶重工有限公司 | PTFE plastic rotary sleeve machining process |
| CN105773988B (en) * | 2016-05-10 | 2018-08-10 | 广东永高塑业发展有限公司 | A kind of enhanced winding pipe and its manufacturing method and equipment |
| CN106891501A (en) * | 2017-01-22 | 2017-06-27 | 杨明昆 | A kind of new steel mesh plastic composite pipe processing technology |
| CN106870833A (en) * | 2017-01-22 | 2017-06-20 | 杨明昆 | A kind of new steel mesh plastic composite pipe |
| CN113513638B (en) * | 2021-07-02 | 2022-03-18 | 浙江天诚绝热科技股份有限公司 | Forming device of polyurethane heat-insulation composite pipe |
| CN113531232B (en) * | 2021-07-19 | 2022-10-28 | 扬州华光新材料股份有限公司 | Processing die of new forms of energy vacuum energy-saving cooling tube |
| CN114770991B (en) * | 2022-03-30 | 2023-01-24 | 江苏致乐管业科技有限公司 | Processing method of PVC (polyvinyl chloride) pipe |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2313137Y (en) * | 1997-12-23 | 1999-04-07 | 黑龙江省塑料工业科学研究所 | Metal-reinforced plastic composite tube |
-
1999
- 1999-02-11 CN CN99101666A patent/CN1085810C/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2313137Y (en) * | 1997-12-23 | 1999-04-07 | 黑龙江省塑料工业科学研究所 | Metal-reinforced plastic composite tube |
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| Publication number | Publication date |
|---|---|
| CN1263223A (en) | 2000-08-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHONGGUAN NEW TYPE TIBE MATERIAL EQUIPMENT DEVELOP Free format text: FORMER OWNER: ZHANG GUOXIANG Effective date: 20091023 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091023 Address after: No. 21 West Road, Haidian District, Beijing Patentee after: The crown of new pipe equipment Development Co Ltd Address before: Beijing City 2 Baiguang road of Ministry of water resources irrigation and drainage company Patentee before: Zhang Guoxiang |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20020529 |