CN114103153A - Vacuum-resistant externally-reinforced antistatic engineering plastic pipe and processing method thereof - Google Patents
Vacuum-resistant externally-reinforced antistatic engineering plastic pipe and processing method thereof Download PDFInfo
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- CN114103153A CN114103153A CN202111397130.XA CN202111397130A CN114103153A CN 114103153 A CN114103153 A CN 114103153A CN 202111397130 A CN202111397130 A CN 202111397130A CN 114103153 A CN114103153 A CN 114103153A
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- Prior art keywords
- engineering plastic
- processing method
- vacuum
- reinforced
- resistant
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Classifications
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- 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
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
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- 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
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
- B29C63/04—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like
- B29C63/08—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like by winding helically
- B29C63/10—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like by winding helically around tubular articles
- B29C63/105—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like by winding helically around tubular articles continuously
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/44—Joining a heated non plastics element to a plastics element
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention relates to the field of processing of high polymer materials, and particularly discloses a vacuum-resistant reinforced antistatic engineering plastic pipe and a processing method thereof. The pipeline material prepared by the method is more saved, the material is simpler, and the processing energy consumption is less; the outer wall surface is designed with threads to be reinforced, and the inner wall surface of the pipeline is smooth and has no change; the electrostatic conducting wire is dense and has stronger conductivity; the electrostatic conducting wire is deeper, and is more wear-resistant and safer; the processing process is simple, the material is single, and the cost is lower.
Description
Technical Field
The invention relates to the field of processing of high polymer materials, in particular to a vacuum-resistant and externally-reinforced antistatic engineering plastic pipe and a processing method thereof.
Background
Pipelines such as HDPE (high-density polyethylene), PP (polypropylene) and the like are frequently used for conveying air, industrial gas and oil gas, a pumping mode is frequently used for conveying gas materials in order to prevent leakage, common pipelines are mostly inner and outer smooth-wall pipes, and the problem that the pipelines are unstable and deform and are rapidly aggravated frequently occurs in the operation with certain vacuum degree; and the steel skeleton is wound on the engineering plastic pipe, so that the processing is difficult and the manufacturing cost is high. Meanwhile, a large amount of static electricity can be generated in the process of high-speed flowing of gas, liquid or solid by a plurality of engineering plastics, and the cost of raw materials and the processing difficulty can be greatly increased by adding conductive polymers or fillers.
Disclosure of Invention
In order to solve the problems, the invention provides a vacuum-resistant and externally-reinforced antistatic engineering plastic pipe and a processing method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method for manufacturing the vacuum-resistant external reinforced antistatic engineering plastic pipe includes such steps as adding a spiral reinforcing ring made of the same material to the external surface of engineering plastic pipe, laying an electrostatic conducting wire between said spiral reinforcing ring and external surface of engineering plastic pipe, heating to the softening temp of engineering plastic pipe and a certain tension, and welding plastic gun or adhesive to tightly combine the spiral reinforcing ring with external surface of engineering plastic pipe.
And further, after welding by a plastic welding gun, purging by using air for cooling.
Further, after bonding by the adhesive, hot air blowing is used to promote the bonding strength and time.
Further, the spiral reinforcing ring is formed by winding a cutting plastic strip on the outer wall of the engineering plastic pipeline.
Further, the screw pitch of the outer plastic strip is controlled by adjusting the rotation and stepping speed of the engineering plastic pipeline. The screw pitch is calculated according to the requirement of vacuum resistance and by combining the elastic modulus of the material, the strength of the material, the use temperature, the section moment of inertia and the like, and the screw pitch is as dense as possible.
The invention also provides a vacuum-resistant and externally-reinforced antistatic engineering plastic pipe prepared by the preparation method.
Compared with the traditional smooth wall pipe, the invention has the characteristics of lighter weight, more material saving, higher vacuum resistance and stronger antistatic capability under the same external pressure resistance, and specifically comprises the following steps:
1) the reinforcing ring is made of the same material as the body plastic, is tightly combined and saves more cost than a steel reinforcing ring;
2) the plastic strip adopted by the reinforcing ring can adopt a formed thick-wall plastic pipe for cutting processing, the equipment is simple, the power is low, and the material is saved.
3) Winding the engineering plastic pipe by adopting an electrostatic conducting wire which is heated to the softening temperature of the pre-reinforced plastic pipe and has a certain tension degree under the condition of the same pitch as that of the reinforced plastic strip, so that the electrostatic conducting wire is well combined with the pipeline body;
4) the plastic strip is glued after welding, so that the method is simple and reliable and has low manufacturing cost;
5) according to the strength requirement of the pre-reinforced engineering plastic pipe, engineering calculation is carried out according to the calculation method of an external reinforcing ring of GB 150.3-2011 pressure vessel, and the wall thickness, the width and the cross section shape of the plastic strip cutting pipe can be selected;
6) the reinforced plastic pipe has outer wall with easy-to-machine thread and inner wall with original smoothness and shape.
Drawings
FIG. 1 is a plan view of a vacuum-resistant externally reinforced antistatic engineering plastic pipe according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a vacuum-resistant externally reinforced antistatic engineering plastic pipe according to an embodiment of the present invention;
in the figure: 1-engineering plastic pipeline outer wall; 2-a helical reinforcing ring; 3-electrostatic wire; 4-welding a ring; l-pitch; w-width; h-height.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described in detail below with reference to examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A processing method of a vacuum-resistant externally-reinforced antistatic engineering plastic pipe is characterized in that as shown in figure 1, a spiral reinforcing ring made of the same material is additionally arranged on the outer wall of an engineering plastic pipeline, a cutting plastic strip is adopted for the spiral reinforcing ring, a static wire which is heated to a pre-reinforced engineering plastic pipeline softening temperature and has a certain tension degree is laid between the spiral reinforcing ring and the outer wall of the engineering plastic pipeline, in the process, the pitch of an external plastic strip is controlled by adjusting the rotation and stepping speeds of the engineering plastic pipeline, the spiral reinforcing ring is tightly combined with the outer wall of the engineering plastic pipeline through a plastic welding gun and an adhesive, and after the plastic welding gun is used for welding, air is used for blowing and cooling; after bonding by the adhesive, hot air blowing is used to promote the bonding strength and time.
Example 2
As shown in figure 1, an anti-static engineering plastic pipe of nai vacuum outer reinforcement, including engineering plastic pipe, winding setting static wire and cutting plastic strip on engineering plastic pipe outer wall, just static wire sets up between engineering plastic pipe outer wall and cutting plastic strip, and the cutting plastic strip passes through plastics welder and adhesive and engineering plastic pipe outer wall in close combination.
The detection shows that: the pipeline material prepared by the method is more saved, the material is simpler, and the processing energy consumption is less; the outer wall surface is designed with threads to be reinforced, and the inner wall surface of the pipeline is smooth and has no change; the electrostatic conducting wire is dense and has stronger conductivity; the electrostatic conducting wire is deeper, and is more wear-resistant and safer; the processing process is simple, the material is single, and the cost is lower.
Application example
Under normal temperature, the outer diameter is 200mm, the wall thickness is 7.7mm, the internal pressure is 0.6MPa, and the external pressure is about 0.035 MPa;
after a spiral reinforcing ring with the thickness of 13mm, the width of 13mm and the screw pitch of 200mm is added by adopting the method, the weight increment and the external pressure resistance are measured, and the results are as follows: the weight of the pipeline is increased by 11 percent, the external pressure resistance is improved by 6 times, and the external pressure resistance is about 0.21 MPa. The method of the invention does not need to add or only add a little conductive filler, conductive polymer ingredient and metal framework, and the cost is saved by more than 15%.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (6)
1. A processing method of a vacuum-resistant externally-reinforced antistatic engineering plastic pipe is characterized by comprising the following steps: the spiral reinforcing ring made of the same material is added on the outer wall of the engineering plastic pipeline, an electrostatic conducting wire which is heated to the softening temperature of the pre-reinforced engineering plastic pipeline and has a certain tension degree is laid between the spiral reinforcing ring and the outer wall of the engineering plastic pipeline, and the spiral reinforcing ring is tightly combined with the outer wall of the engineering plastic pipeline through a plastic welding gun or an adhesive.
2. The processing method of the vacuum-resistant externally-reinforced antistatic engineering plastic pipe as claimed in claim 1, wherein the processing method comprises the following steps: and after welding by a plastic welding gun, blowing and cooling by using air.
3. The processing method of the vacuum-resistant externally-reinforced antistatic engineering plastic pipe as claimed in claim 1, wherein the processing method comprises the following steps: after bonding by the adhesive, hot air blowing is used to promote the bonding strength and time.
4. The processing method of the vacuum-resistant externally-reinforced antistatic engineering plastic pipe as claimed in claim 1, wherein the processing method comprises the following steps: the spiral reinforcing ring is formed by winding and welding a cut plastic strip on the outer wall of the engineering plastic pipeline, and the width and the thickness of the plastic strip are determined by the calculation of the external pressure resistance strength.
5. The processing method of the vacuum-resistant externally-reinforced antistatic engineering plastic pipe as claimed in claim 1, wherein the processing method comprises the following steps: the pitch of the external plastic strip is controlled by adjusting the rotation speed of the engineering plastic pipeline and the stepping speed of the platform for cutting the reinforced plastic strip.
6. The utility model provides an antistatic engineering plastic tubing of resistant vacuum outer reinforcement which characterized in that: prepared by the preparation method as described in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111397130.XA CN114103153A (en) | 2021-11-23 | 2021-11-23 | Vacuum-resistant externally-reinforced antistatic engineering plastic pipe and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111397130.XA CN114103153A (en) | 2021-11-23 | 2021-11-23 | Vacuum-resistant externally-reinforced antistatic engineering plastic pipe and processing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114103153A true CN114103153A (en) | 2022-03-01 |
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| CN202111397130.XA Pending CN114103153A (en) | 2021-11-23 | 2021-11-23 | Vacuum-resistant externally-reinforced antistatic engineering plastic pipe and processing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113527004A (en) * | 2021-07-29 | 2021-10-22 | 陕西智超信息技术有限公司 | Method for quickly adhering and settling air floater |
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2021
- 2021-11-23 CN CN202111397130.XA patent/CN114103153A/en active Pending
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| US20110209889A1 (en) * | 2007-09-25 | 2011-09-01 | Steward Plastics, Inc. | Flexible tubing and novel manufacturing methods for making such a tubing |
| JP2010144808A (en) * | 2008-12-17 | 2010-07-01 | Kanaflex Corporation | Flexible pressure resistance-wearproof hose |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113527004A (en) * | 2021-07-29 | 2021-10-22 | 陕西智超信息技术有限公司 | Method for quickly adhering and settling air floater |
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Application publication date: 20220301 |
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