CN100553931C - Production technology of the steel skeleton plastic clad pipe of band plastics termination and products thereof - Google Patents
Production technology of the steel skeleton plastic clad pipe of band plastics termination and products thereof Download PDFInfo
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- CN100553931C CN100553931C CNB2008100235092A CN200810023509A CN100553931C CN 100553931 C CN100553931 C CN 100553931C CN B2008100235092 A CNB2008100235092 A CN B2008100235092A CN 200810023509 A CN200810023509 A CN 200810023509A CN 100553931 C CN100553931 C CN 100553931C
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- steel skeleton
- clad pipe
- plastic clad
- skeleton plastic
- termination
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- 229920003023 plastic Polymers 0.000 title claims abstract description 84
- 239000004033 plastic Substances 0.000 title claims abstract description 84
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 67
- 239000010959 steel Substances 0.000 title claims abstract description 67
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000005516 engineering process Methods 0.000 title claims abstract description 11
- 238000001746 injection moulding Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 239000011159 matrix material Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 abstract description 12
- 210000001503 joint Anatomy 0.000 abstract description 10
- 230000004927 fusion Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 description 8
- 239000000047 product Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses production technology of a kind of steel skeleton plastic clad pipe with the plastics termination and products thereof, the invention has the beneficial effects as follows: solved steel skeleton plastic clad pipe by being provided with of injection moulding termination and be difficult to use hot melt to dock the problem that connects, the steel skeleton plastic clad pipe that connects band injection moulding provided by the invention termination by the hot melt butt joint, steel skeleton, the fusion of plastics end face connector connects as one, thoroughly solve multiple tube end face steel and moulded the phenomenon that interface debonding is peeled off, reliability greatly improves, bring materials to economize simultaneously, easily make, assembly fee is low, welding pressure can be controlled, and human factor influence is little, and quality such as more easily guarantees at advantage.
Description
Technical field
The present invention relates to a kind of steel skeleton plastic clad pipe moulding process and products thereof, specifically relate to production technology of a kind of steel skeleton plastic clad pipe with the plastics termination and products thereof.
Background technology
The domestic in recent years emerging a kind of novel tube of steel skeleton composite pipe, be widely used in various fields such as oil, chemical industry, building, shipbuilding, communication, electric power and underground gas pipeline, be the preferable product that substitutes traditional galvanized pipe at present, be described as environmental protection tubing.
At present, the method for attachment to the steel skeleton composite pipe is exactly that flange bolt connects, the molten sleeve of electric heating connects substantially both at home and abroad, but above method of attachment has following defective, and is specific as follows:
1. flange connects
The ground that buries that 1, can not be used for piping; 2, used connection securing member is metalwork, not withstand corrosion; 3, manufacturing cost height; 4, difficulty relatively is installed.
2. electric heating is molten connects
1, can not be used to manage and being connected of pipeline parts such as pump, valve; Owing to the influence of various factors such as environment and technology, be difficult to the temperature and the melt pressure of control weld zone when 2, installing; 3, owing to there are very big out-of-roundness in pipe fitting, tubing, make the very big fit clearance of existence between them, cause and run material in the welding process, local rosin joint leakage occurs and weld phenomenon, influence construction quality; 4, electrical fusion joint is provided with needs to install heating wire, complex structure, cost height; 5, electric smelting welded joint face of weld is gapped, causes phenomenons such as " scurrying water ".
Raising along with hot melt butt joint connection device automaticity, the hot melt butt joint connects the connected mode as plastics (resin) pipeline and plastics (resin) pipeline, ripe in technology, and hot melt butt joint connection also has materials province, easily make, assembly fee is low, welding pressure can be controlled, the human factor influence is little, advantages such as quality more easily guarantees, but, can't directly use the hot melt butt joint to connect the steel skeleton multiple tube and have any problem because the steel skeleton plastic clad pipe end face is a steel plastic composite structure.Therefore how to produce a kind of steel skeleton multiple tube and adapt to the problem that hot melt butt joint connection has just become present everybody concern.
At the improvement of the connected mode of steel skeleton multiple tube, developed the product of multiple steel skeleton plastic clad pipe in addition.
Disclose a kind of injection moulding formula steel skeleton composite pipe among the documents CN200310104507, its front end plastic connecting body and tubing body between only be connected at the tiny end face of steel skeleton composite pipe, and joint face is perpendicular to the tubing axis.Design has following defective like this: at first connecting portion is stable inadequately, the disengaging of plastic connecting body and tubing body especially when producing, tubing easily takes place under the condition of injection pressure and difficult control of temperature, secondly this structure makes tubing be difficult in use flexible flexural loading, make the tubing mounting arrangement be subjected to great restriction, this once more its two ends profile difference of injection moulding formula steel skeleton composite pipe, be difficult to adapt to the streamline production of present tubing, production efficiency is lower.
Disclose a kind of steel skeleton plastic clad pipe with socket joint and thermofussion welding joint among the documents CN03237356, this structure has following defective: 1. need heating wire be installed at the hole inwall, binding post causes complex manufacturingization, and cost is still higher; 2. the tubing connective stability is affected by environment greatly, if connecting portion in the tubing connection procedure (between socket end mouth and the spigot mouth) is gapped, then the air in the gap expands in being subjected to thermal process and forms bubble in the plastics that easily enter connecting portion, makes connective stability be affected greatly.3. need to make socket end mouth and spigot mouth end to end respectively at the steel skeleton multiple tube respectively, cost is than higher.
Summary of the invention
One of purpose of the present invention provides a kind ofly can directly use the production technology that hot melt butt joint connects the steel skeleton multiple tube that carries out the band plastics termination that pipeline connects.
Another object of the present invention provides a kind of steel skeleton plastic clad pipe that can directly use the hot melt butt joint to connect the plastics termination of carrying out the pipeline connection.
For realizing above-mentioned first purpose, technical scheme of the present invention is: a kind of production technology of the steel skeleton plastic clad pipe with the plastics termination is characterized in that: comprise following step:
A) baking oven is sent in the end of steel skeleton plastic clad pipe, with its end plastic layer be heated to can welding with the plastic material of plastics termination preference temperature;
B) end of the steel skeleton plastic clad pipe that heats is stretched into the injection moulding in-mould injection rapidly, described injection mould comprise the injection moulding external mold that is socketed on steel skeleton plastic clad pipe and with the coaxial interior centering spindle that is movably arranged in the injection moulding external mold of steel skeleton plastic clad pipe, this injection moulding external mold is the Hough mould, its inwall is provided with matrix cavity in the annular, described steel skeleton plastic clad pipe end places in the interior matrix cavity of annular, and its end face is reserved certain space with the end face of the interior matrix cavity of annular, and described mandrel decided at the higher level but not officially announced end penetrates the mouth of pipe that this space is resisted against steel skeleton plastic clad pipe;
C) keep the injection pressure state to carry out cooling and shaping;
Further being provided with is also to have the following steps between described a and the b step: process several annular grooves on the end outer layer plastic wall with steel skeleton plastic clad pipe.
Further being provided with is that the described annular groove degree of depth is 0.5-1mm.
For realizing above-mentioned second order, technical scheme of the present invention is to comprise steel skeleton, be coated on the inside and outside plastic layer of steel skeleton, the two constitutes composite construction, it is characterized in that: the outside, described steel skeleton plastic clad pipe end fixed packet is covered with the plastics termination, this plastics termination comprises the side subsides portion of the welded joint and the tail end of front end, the one-body molded setting of this welded joint and side subsides portion, described welded joint and steel skeleton plastic clad pipe mouth of pipe end face are close to secure fit, and the sidewall of the outer layer plastic layer that is coated and fixed on the end is close to by described side subsides portion.
Further be provided be described side subsides portion with the outer layer plastic layer outer wall of the end of the steel skeleton plastic clad pipe mouth of pipe between the junction ringwise male and fomale(M﹠F) interlock and cooperate.
Further be provided with that to be that described male and fomale(M﹠F) is sawtooth wavy.This is provided with can also be that described male and fomale(M﹠F) is the square wave shape.
The invention has the beneficial effects as follows: solved steel skeleton plastic clad pipe by being provided with of injection moulding termination and be difficult to use hot melt to dock the problem that connects, the steel skeleton plastic clad pipe that connects band injection moulding provided by the invention termination by the hot melt butt joint, steel skeleton, the fusion of plastics end face connector connect as one, thoroughly solve multiple tube end face steel and moulded the phenomenon that interface debonding is peeled off, reliability greatly improves, bring materials to economize simultaneously, easily make, assembly fee is low, welding pressure can be controlled, human factor influence is little, and quality such as more easily guarantees at advantage.
Below in conjunction with Figure of description the present invention is done further introduction.
Figure of description
Fig. 1 specific embodiment of the invention process chart
Fig. 2 specific embodiment of the invention turning schematic diagram
Fig. 3 specific embodiment of the invention termination heating schematic diagram
Fig. 4 specific embodiment of the invention injection moulding schematic diagram
The structural representation of Fig. 5 product of the present invention
The hot melt butt joint connection layout of Fig. 6 product of the present invention
The specific embodiment
The specific embodiment of the present invention shown in Fig. 1-6, get steel skeleton plastic clad pipe 1 ready, this steel skeleton plastic clad pipe 1 comprises steel skeleton 11 and is coated on the inside and outside plastic layer 12 of steel skeleton, the two constitutes composite construction, described steel skeleton 11 can be the hole pattern steel band, forms such as steel wire, outer plastic layer can adopt PE in described, plastic materials such as PVC, then with 1 of steel skeleton plastic clad pipe on pipeline carriage 3, process several annular grooves 15 by turning machine 2 on the end outer layer plastic layer 12 with steel skeleton plastic clad pipe, the preferably described annular groove degree of depth is 0.5-1mm, by pipeline carriage 3 baking oven 4 is sent in the end of steel skeleton plastic clad pipe 1 then, with its end plastic layer 12 be heated to can welding with the plastic material of plastics termination preference temperature, the end of the steel skeleton plastic clad pipe 1 that heats is put into the injection moulding in-mould injection rapidly, described injection mould comprise the injection moulding external mold 5 that is socketed on steel skeleton plastic clad pipe and with the steel skeleton plastic clad pipe 1 coaxial interior centering spindle 6 that is movably arranged in the injection moulding external mold 5, this injection moulding external mold 5 is the Hough mould, its inwall is provided with matrix cavity in the annular, described steel skeleton plastic clad pipe end through turning processing places in the interior matrix cavity of annular, and be reserved with certain space between the end face of matrix cavity in its end face and the annular, centering spindle 6 ends penetrate the mouth of pipe that this space is resisted against steel skeleton plastic clad pipe in described, so form a welded joint 131 in this locus injection moulding, the remainder of the interior matrix cavity of described annular then injection moulding forms side subsides portion 132, junction between outer layer plastic layer 12 outer wall of this side subsides portion 132 and the end of the steel skeleton plastic clad pipe mouth of pipe is 14 staggered cooperations of male and fomale(M﹠F) ringwise, the annular concave-convex face 14 that is somebody's turn to do can be shapes such as the wavy or square wave shape of sawtooth, this annular concave-convex face of present embodiment is preferably the square wave shape, centering spindle is inserted in the mouth of pipe of steel skeleton plastic clad pipe in described, keep the injection pressure state to carry out cooling and shaping after the injection moulding, final product rolls off the production line.
Claims (2)
1. production technology with the steel skeleton plastic clad pipe of plastics termination is characterized in that: comprise following step:
A) baking oven is sent in the end of steel skeleton plastic clad pipe, with its end plastic layer be heated to can welding with the plastic material of plastics termination preference temperature;
B) process several annular grooves on the end outer layer plastic wall with steel skeleton plastic clad pipe;
C) end of the steel skeleton plastic clad pipe that heats is stretched into the injection moulding in-mould injection rapidly, described injection mould comprise the injection moulding external mold that is socketed on steel skeleton plastic clad pipe and with the coaxial interior centering spindle that is movably arranged in the injection moulding external mold of steel skeleton plastic clad pipe, this injection moulding external mold is the Hough mould, its inwall is provided with matrix cavity in the annular, described steel skeleton plastic clad pipe end places in the interior matrix cavity of annular, and reserve certain space between the end face of matrix cavity in its end face and the annular, described mandrel decided at the higher level but not officially announced end penetrates the mouth of pipe that this space is resisted against steel skeleton plastic clad pipe;
D) keep the injection pressure state to carry out cooling and shaping.
2. the production technology of the plastics termination of the steel skeleton plastic clad pipe of band plastics according to claim 1 termination is characterized in that: the described annular groove degree of depth is 0.5-1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100235092A CN100553931C (en) | 2008-03-31 | 2008-03-31 | Production technology of the steel skeleton plastic clad pipe of band plastics termination and products thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100235092A CN100553931C (en) | 2008-03-31 | 2008-03-31 | Production technology of the steel skeleton plastic clad pipe of band plastics termination and products thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101249708A CN101249708A (en) | 2008-08-27 |
| CN100553931C true CN100553931C (en) | 2009-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100235092A Active CN100553931C (en) | 2008-03-31 | 2008-03-31 | Production technology of the steel skeleton plastic clad pipe of band plastics termination and products thereof |
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| Country | Link |
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| CN (1) | CN100553931C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175401A (en) * | 2018-10-22 | 2019-01-11 | 华创天元实业发展有限责任公司 | Steel skeleton plastic clad pipe determines Lathe quantity turning lathe |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179896B (en) * | 2011-03-07 | 2013-08-14 | 广东联塑科技实业有限公司 | Mold injection-molding system of composite pipe |
| CN102434736A (en) * | 2011-09-16 | 2012-05-02 | 平顶山捷利德增强塑料有限公司(中外合资) | Process for carrying out injection molding on flanges of pipe fitting on steel-plastic compound pipe |
| CN106985362B (en) * | 2017-04-20 | 2023-05-23 | 厦门大学嘉庚学院 | Electrical apparatus for producing polyethylene and use method thereof |
| CN109094068A (en) * | 2018-08-22 | 2018-12-28 | 联塑科技发展(贵阳)有限公司 | A kind of injection molding socket joint flexible connection steel-belt-pipe and application method |
| GB2576588B (en) * | 2018-08-23 | 2022-04-06 | Tucai Sa | Connecting assembly and method for manufacturing thereof |
| CN112610781A (en) * | 2020-11-26 | 2021-04-06 | 山西青科恒安矿业新材料有限公司 | Thermoplastic reinforced plastic composite pipe end boss structure and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2449034Y (en) * | 2000-11-10 | 2001-09-19 | 胜利石油管理局工程机械总厂 | Melting butt joint type steel-plastic combined pipe |
| DE19916786C2 (en) * | 1999-04-14 | 2002-11-07 | Plasticon Germany Gmbh | Method for connecting at least two plastic pipe and / or wall elements |
| CN2736629Y (en) * | 2004-09-20 | 2005-10-26 | 王占奎 | Sealing sleeve for composite tube soldering |
| CN1880825A (en) * | 2005-06-13 | 2006-12-20 | 甘国工 | Pipe end flange of steel-frame reinforced composite plastic pipe and method for fabricating same |
-
2008
- 2008-03-31 CN CNB2008100235092A patent/CN100553931C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19916786C2 (en) * | 1999-04-14 | 2002-11-07 | Plasticon Germany Gmbh | Method for connecting at least two plastic pipe and / or wall elements |
| CN2449034Y (en) * | 2000-11-10 | 2001-09-19 | 胜利石油管理局工程机械总厂 | Melting butt joint type steel-plastic combined pipe |
| CN2736629Y (en) * | 2004-09-20 | 2005-10-26 | 王占奎 | Sealing sleeve for composite tube soldering |
| CN1880825A (en) * | 2005-06-13 | 2006-12-20 | 甘国工 | Pipe end flange of steel-frame reinforced composite plastic pipe and method for fabricating same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175401A (en) * | 2018-10-22 | 2019-01-11 | 华创天元实业发展有限责任公司 | Steel skeleton plastic clad pipe determines Lathe quantity turning lathe |
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| Publication number | Publication date |
|---|---|
| CN101249708A (en) | 2008-08-27 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Huangsheng Pipe Industrial Group Co., Ltd. Assignor: Shao Taiqing|Shao Hanzeng Contract fulfillment period: 2009.6.1 to 2019.5.31 Contract record no.: 2009330001665 Denomination of invention: Production technique of steel skeleton plastic composite pipe having plastic end and products thereof Granted publication date: 20091028 License type: Exclusive license Record date: 20090720 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.6.1 TO 2019.5.31; CHANGE OF CONTRACT Name of requester: HUANGSHENG GROUP CO.,LTD. Effective date: 20090720 |
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| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: SHAO HANZENG Effective date: 20141119 Owner name: WENZHOU HUANGSHENG PIPE FITTINGS CO., LTD. Free format text: FORMER OWNER: SHAO TAIQING Effective date: 20141119 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141119 Address after: China Economic and Technological Development Zone in Zhejiang Province, Wenzhou City, 325000 West Road No. 45 Building No. 4 Patentee after: Wenzhou Huang Sheng pipe fittings Limited by Share Ltd Address before: Wenzhou City, Zhejiang province 325000 Yandang Road No. 45 Patentee before: Shao Taiqing Patentee before: Shao Hanzeng |
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| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Huangsheng Pipe Industrial Group Co., Ltd. Assignor: Shao Taiqing|Shao Hanzeng Contract record no.: 2009330001665 Date of cancellation: 20141020 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
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Effective date of registration: 20180517 Address after: 435300 east side of junction of Wenzhou Avenue and Katie Avenue, Qichun County Economic Development Zone, Huanggang, Hubei Patentee after: Hubei Xinsheng pipe fittings Co., Ltd. Address before: 325000 building 4, 45, Yan Dang West Road, Wenzhou economic and Technological Development Zone, Zhejiang Patentee before: Wenzhou Huang Sheng pipe fittings Limited by Share Ltd |
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Effective date of registration: 20210518 Address after: 332000 Room 202, unit 3, building 17, North District, 39 Changhong North Branch Road, Xunyang District, Jiujiang City, Jiangxi Province Patentee after: Li Guangzhong Address before: 435300 east side of junction of Wenzhou Avenue and Katie Avenue, Qichun County Economic Development Zone, Huanggang, Hubei Patentee before: HUBEI XINSHENG PIPE FITTING Co.,Ltd. |
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