CN111037957A - Production process of steel strip reinforced polyethylene spiral corrugated pipe - Google Patents
Production process of steel strip reinforced polyethylene spiral corrugated pipe Download PDFInfo
- Publication number
- CN111037957A CN111037957A CN201910480962.4A CN201910480962A CN111037957A CN 111037957 A CN111037957 A CN 111037957A CN 201910480962 A CN201910480962 A CN 201910480962A CN 111037957 A CN111037957 A CN 111037957A
- Authority
- CN
- China
- Prior art keywords
- steel
- steel belt
- steel strip
- reinforced polyethylene
- tackifying resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a production process of a steel strip reinforced polyethylene spiral corrugated pipe, which comprises the following steps: the method comprises the following steps that firstly, steel strips are degreased and cleaned in a steel strip cleaning machine, then water on the steel strips is removed through high-frequency heating, the steel strips are baked through an oven to be completely dried, and then the steel strips enter a numerical control milling machine to be grooved; and step two, conveying the steel belt processed in the step one into a plastic coating machine, spraying tackifying resin, drying the steel belt after spraying is finished, and conveying the steel belt into a traction machine coil for later use. The tackifying resin improves the bonding force between the steel belt and the polyethylene on the inner layer and the outer layer, the steel belt and the inner layer and the outer layer are easy to achieve a cooperative stress state in the use process, the steel belt is convenient to be connected with the inside of the polyethylene corrugated pipe through the corrugated grooves arranged on the surface of the steel belt, and the service life of the steel belt reinforced polyethylene spiral corrugated pipe is further prolonged, so that the layering caused by the insufficient bonding force of the inner layer and the outer layer in the future use of the steel belt pipe is solved from the source, and the service life is prolonged.
Description
Technical Field
The invention relates to the technical field of corrugated pipes, in particular to a production process of a steel strip reinforced polyethylene spiral corrugated pipe.
Background
The spiral corrugated pipe is a common pipe in municipal engineering at present, is generally used as a drain pipe and a blow-off pipe, and has the advantages of low cost, corrosion resistance and the like compared with the traditional concrete pipeline and metal pipeline. The existing spiral corrugated pipe is usually in a single-component form, namely the spiral corrugated pipe is processed by only one component of material, wherein the most common is PP or PE, PE material has better wear resistance and internal corrosion but the cost is higher than that of PP, and if the whole section of spiral corrugated pipe adopts PE material as the single-component spiral corrugated pipe, the manufacturing cost is higher.
The existing steel belt reinforced polyethylene spiral corrugated pipe has insufficient adhesive force between the steel belt and the polyethylene, so that the steel belt is loosened and falls off, and shakes, the quality and the service life of the corrugated pipe are influenced, and drainage and pollution discharge are not facilitated.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a production process of a steel strip reinforced polyethylene spiral corrugated pipe.
In order to achieve the purpose, the invention adopts the following technical scheme:
a production process of a steel strip reinforced polyethylene spiral corrugated pipe comprises the following steps:
the method comprises the following steps that firstly, steel strips are degreased and cleaned in a steel strip cleaning machine, then water on the steel strips is removed through high-frequency heating, the steel strips are baked through an oven to be completely dried, and then the steel strips enter a numerical control milling machine to be grooved;
step two, the steel belt processed in the step one is sent to a plastic coating machine to be coated with tackifying resin, and the steel belt is dried after being coated and then sent to a traction machine coil for standby;
step three, the steel belt which is coated with the plastic in the step two is sent to a forming device for pre-stress-relief forming bending treatment, so that the section of the steel belt is bent into an omega shape, and the steel belt is sent to a winding machine after being rolled and formed;
and step four, opening a cooling device to cool the formed steel belt, coating the formed steel belt by extruding thermoplastic resin by using an inner wall extruder, an outer wall extruder and a winding machine, and processing the steel belt reinforced polyethylene spiral corrugated pipe with the inner pipe wall and the outer pipe wall both made of the thermoplastic resin.
Preferably, the temperature of the cleaning liquid in the steel strip cleaning machine in the step one is controlled to be between 85 and 120 ℃.
Preferably, one end of the steel strip in the first step passes through a numerical control milling machine and is placed on a worktable for grooving, the surface of the steel is provided with a corrugated groove, and the depth of the corrugated groove is 0.5 mm.
Preferably, the preparation method of the tackifying resin in the second step comprises the following steps: adding an epoxy resin base material, a curing agent, a flame retardant, a toughening agent and an accelerant into a reaction kettle, replacing air with nitrogen, uniformly mixing at the pressure of 2-3.8 Mpa and the temperature of 185-280 ℃, introducing acetylene or propyne, and reacting at constant temperature for 12-22 hours; decompressing after the reaction is finished, removing low boiling point substances to obtain strong tackifying resin, and then adding dioctyl terephthalate for mixing to prepare a tackifying resin mixture; and (4) feeding the tackifying resin mixture in the reaction kettle into a granulating extruder for granulation to obtain the tackifying resin required by the step two.
Preferably, the addition amount of the acetylene or the propyne is 8-12% of the total mass of the formula; the addition amount of the curing agent, the flame retardant, the toughening agent and the accelerator is 0.1:0.1:0.1:0.1 of the total mass of the formula.
Has the advantages that:
the tackifying resin improves the bonding force of the steel belt and the polyethylene on the inner layer and the outer layer, the steel belt and the inner layer and the outer layer are easy to achieve a cooperative stress state in the use process, the steel belt and the inner layer of the polyethylene corrugated pipe are conveniently connected through the corrugated grooves arranged on the surface of the steel belt, the bonding and stress points are increased, the service life of the steel belt reinforced polyethylene spiral corrugated pipe is further prolonged, the delamination caused by the insufficient bonding force of the inner layer and the outer layer in the future use of the steel belt pipe is solved from the source, and the service life is prolonged.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
A production process of a steel strip reinforced polyethylene spiral corrugated pipe comprises the following steps:
the method comprises the following steps that firstly, steel strips are degreased and cleaned in a steel strip cleaning machine, then water on the steel strips is removed through high-frequency heating, the steel strips are baked through an oven to be completely dried, and then the steel strips enter a numerical control milling machine to be grooved;
step two, the steel belt processed in the step one is sent to a plastic coating machine to be coated with tackifying resin, and the steel belt is dried after being coated and then sent to a traction machine coil for standby;
step three, the steel belt which is coated with the plastic in the step two is sent to a forming device for pre-stress-relief forming bending treatment, so that the section of the steel belt is bent into an omega shape, and the steel belt is sent to a winding machine after being rolled and formed;
and step four, opening a cooling device to cool the formed steel belt, coating the formed steel belt by extruding thermoplastic resin by using an inner wall extruder, an outer wall extruder and a winding machine, and processing the steel belt reinforced polyethylene spiral corrugated pipe with the inner pipe wall and the outer pipe wall both made of the thermoplastic resin.
The temperature of the cleaning liquid in the steel strip cleaning machine in the step one is controlled to be between 85 and 120 ℃.
One end of the steel strip in the step one is grooved on a workbench through a numerical control milling machine, a corrugated groove is formed in the surface of the steel, and the depth of the corrugated groove is 0.5 mm.
The preparation method of the tackifying resin in the step two comprises the following steps: adding an epoxy resin base material, a curing agent, a flame retardant, a toughening agent and an accelerant into a reaction kettle, replacing air with nitrogen, uniformly mixing at the pressure of 2-3.8 Mpa and the temperature of 185-280 ℃, introducing acetylene or propyne, and reacting at constant temperature for 12-22 hours; decompressing after the reaction is finished, removing low boiling point substances to obtain strong tackifying resin, and then adding dioctyl terephthalate for mixing to prepare tackifying resin mixed material; and (4) feeding the tackifying resin mixture in the reaction kettle into a granulating extruder for granulation to obtain the tackifying resin required by the step two.
The addition amount of the acetylene or the propyne is 8-12% of the total mass of the formula; the addition amount of the curing agent, the flame retardant, the toughening agent and the accelerator is 0.1:0.1:0.1:0.1 of the total mass of the formula.
The tackifying resin improves the bonding force of the steel belt and the polyethylene on the inner layer and the outer layer, the steel belt and the inner layer and the outer layer are easy to achieve a cooperative stress state in the use process, the steel belt and the inner layer of the polyethylene corrugated pipe are conveniently connected through the corrugated grooves arranged on the surface of the steel belt, the bonding and stress points are increased, the service life of the steel belt reinforced polyethylene spiral corrugated pipe is further prolonged, the delamination caused by the insufficient bonding force of the inner layer and the outer layer in the future use of the steel belt pipe is solved from the source, and the service life is prolonged.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention should be covered by the scope of the present invention.
Claims (5)
1. A production process of a steel strip reinforced polyethylene spiral corrugated pipe is characterized by comprising the following steps: the production process comprises the following steps:
the method comprises the following steps that firstly, steel strips are degreased and cleaned in a steel strip cleaning machine, then water on the steel strips is removed through high-frequency heating, the steel strips are baked through an oven to be completely dried, and then the steel strips enter a numerical control milling machine to be grooved;
step two, the steel belt processed in the step one is sent to a plastic coating machine to be coated with tackifying resin, and the steel belt is dried after being coated and then sent to a traction machine coil for standby;
step three, the steel belt which is coated with the plastic in the step two is sent to a forming device for pre-stress-relief forming bending treatment, so that the section of the steel belt is bent into an omega shape, and the steel belt is sent to a winding machine after being rolled and formed;
and step four, opening a cooling device to cool the formed steel belt, coating the formed steel belt by extruding thermoplastic resin by using an inner and outer wall extruder and a winding machine, and processing the steel belt reinforced polyethylene spiral corrugated pipe with the inner and outer pipe walls made of the thermoplastic resin.
2. The process of claim 1, wherein the steel strip reinforced polyethylene helical bellows comprises: and the temperature of the cleaning liquid in the steel strip cleaning machine in the step one is controlled to be between 85 and 120 ℃.
3. The process of claim 1, wherein the steel strip reinforced polyethylene helical bellows comprises: one end of the steel strip in the first step passes through a numerical control milling machine and is placed on a workbench for slotting, the surface of the steel is provided with a corrugated groove, and the depth of the corrugated groove is 0.5 mm.
4. The process of claim 1, wherein the steel strip reinforced polyethylene helical bellows comprises: the preparation method of the tackifying resin in the step two comprises the following steps: adding an epoxy resin base material, a curing agent, a flame retardant, a toughening agent and an accelerant into a reaction kettle, replacing air with nitrogen, uniformly mixing at the pressure of 2-3.8 Mpa and the temperature of 185-280 ℃, introducing acetylene or propyne, and reacting at constant temperature for 12-22 hours; decompressing after the reaction is finished, removing low boiling point substances to obtain strong tackifying resin, and then adding dioctyl terephthalate for mixing to prepare a tackifying resin mixture; and (4) feeding the tackifying resin mixture in the reaction kettle into a granulating extruder for granulation to obtain the tackifying resin required by the step two.
5. The process of claim 1, wherein the steel strip reinforced polyethylene helical bellows comprises: the addition amount of the acetylene or the propyne is 8-12% of the total mass of the formula; the addition amount of the curing agent, the flame retardant, the toughening agent and the accelerator is 0.1:0.1:0.1:0.1 of the total mass of the formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910480962.4A CN111037957A (en) | 2019-06-04 | 2019-06-04 | Production process of steel strip reinforced polyethylene spiral corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910480962.4A CN111037957A (en) | 2019-06-04 | 2019-06-04 | Production process of steel strip reinforced polyethylene spiral corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111037957A true CN111037957A (en) | 2020-04-21 |
Family
ID=70231692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910480962.4A Withdrawn CN111037957A (en) | 2019-06-04 | 2019-06-04 | Production process of steel strip reinforced polyethylene spiral corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111037957A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2640544A1 (en) * | 1976-09-09 | 1978-03-16 | Peter Trieb | Flexible, thermally insulating strip for pipe - which is bent round the pipe joined together at the edges with adhesive, to form a cylinder |
| CN1365315A (en) * | 1999-08-02 | 2002-08-21 | 威尔普拉斯特股份有限公司 | Method and device for the manufacture of corrugated material |
| CN102729500A (en) * | 2011-04-14 | 2012-10-17 | 王东奎 | Spiral rubber hose joint production method and its device |
| CN105538756A (en) * | 2016-02-27 | 2016-05-04 | 云南驰通环保科技有限责任公司 | Production method of steel belt reinforced hollow double-flat-wall polyethylene intertwined drainage pipe |
| CN109094069A (en) * | 2018-09-05 | 2018-12-28 | 四川辉达管业科技有限公司 | A kind of production method of steel band reinforced polyethylene spiral ripple pipe |
| CN109203528A (en) * | 2018-09-05 | 2019-01-15 | 四川辉达管业科技有限公司 | The manufacturing process of steel band composite reinforced polyethylene helical bellows |
-
2019
- 2019-06-04 CN CN201910480962.4A patent/CN111037957A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2640544A1 (en) * | 1976-09-09 | 1978-03-16 | Peter Trieb | Flexible, thermally insulating strip for pipe - which is bent round the pipe joined together at the edges with adhesive, to form a cylinder |
| CN1365315A (en) * | 1999-08-02 | 2002-08-21 | 威尔普拉斯特股份有限公司 | Method and device for the manufacture of corrugated material |
| CN102729500A (en) * | 2011-04-14 | 2012-10-17 | 王东奎 | Spiral rubber hose joint production method and its device |
| CN105538756A (en) * | 2016-02-27 | 2016-05-04 | 云南驰通环保科技有限责任公司 | Production method of steel belt reinforced hollow double-flat-wall polyethylene intertwined drainage pipe |
| CN109094069A (en) * | 2018-09-05 | 2018-12-28 | 四川辉达管业科技有限公司 | A kind of production method of steel band reinforced polyethylene spiral ripple pipe |
| CN109203528A (en) * | 2018-09-05 | 2019-01-15 | 四川辉达管业科技有限公司 | The manufacturing process of steel band composite reinforced polyethylene helical bellows |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201304391Y (en) | Spraying equipment for corrosion protection of inside and outside of steel pipe | |
| CN101695739A (en) | Forging process of large tee and large skew tee | |
| CN110281635B (en) | Aluminum-plastic plate production process | |
| CN102871529A (en) | Aluminum alloy non-stick pan with hard surface and processing technology thereof | |
| CN112479731A (en) | Preparation method of carbon fiber sewing hardening heat-insulation material | |
| CN104162765A (en) | Pipe fitting machining technology | |
| CN111037957A (en) | Production process of steel strip reinforced polyethylene spiral corrugated pipe | |
| CN101186523B (en) | Method for producing dipping graphite tube | |
| CN208619933U (en) | A kind of tefloncompensator | |
| CN107335970A (en) | A kind of preparation method of hollow bolt | |
| CN206678256U (en) | High temperature plastics bar rapid shaping Anti-adhering device | |
| CN210484952U (en) | Externally-coated steel-plastic composite wear-resistant elbow | |
| CN101526164B (en) | Multilayer heat insulation pipe and manufacturing method thereof | |
| CN201721026U (en) | On-line hot melt adhesive coating equipment for steel-plastic composite pipe | |
| CN113717482A (en) | Super-medium-resistant post-processor rubber tube, preparation process thereof and rubber tube assembly | |
| CN108644515B (en) | Steel lining polytetrafluoroethylene bent pipe and mould pressing process thereof | |
| CN112694671A (en) | Manufacturing method of anti-aging impact-resistant self-cleaning polypropylene composite pipe | |
| CN115815978A (en) | Preparation process of antistatic flame-retardant PE steel-plastic composite chemical pipe | |
| CN112175262A (en) | HDPE plastic steel winding pipe | |
| CN208946628U (en) | A kind of high molecular material pipe shaping device | |
| CN111073190A (en) | Plate type flat welding flange | |
| CN102719186A (en) | External insulation material coated to polyurethane hard bubble external wall | |
| CN107685439A (en) | Mould quick molding method | |
| CN207758218U (en) | A kind of set block formula spray pipe mold | |
| CN1242296A (en) | Method and equipment specially for mfg. stainless steel plastic composite tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200421 |
|
| WW01 | Invention patent application withdrawn after publication |