CN105196516A - Method for improving flatness of excircle of PE (polyethylene) pipe - Google Patents
Method for improving flatness of excircle of PE (polyethylene) pipe Download PDFInfo
- Publication number
- CN105196516A CN105196516A CN201510738161.5A CN201510738161A CN105196516A CN 105196516 A CN105196516 A CN 105196516A CN 201510738161 A CN201510738161 A CN 201510738161A CN 105196516 A CN105196516 A CN 105196516A
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- China
- Prior art keywords
- pipe
- cylindrical
- raising
- excircle
- flatness
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- 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.)
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Classifications
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
- B29C48/903—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies externally
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention discloses a method for improving flatness of an excircle of a PE (polyethylene) pipe. The method comprises steps as follows: a high-temperature PE pipe leaving a forming mold is cooled, and the excircle of the PE pipe crusts; the PE pipe is subjected to sizing through a sizing sleeve, and the excircle of the PE pipe is tightly attached to an inner circle of the sizing sleeve; the PE pipe is pulled, and a finished product of the PE pipe is obtained. According to the method for improving the flatness of the excircle of the PE pipe, the microcosmic roughness of the excircle of a disqualified product can be changed to be qualified, the product becomes qualified, and the production cost is reduced.
Description
Technical field
The present invention relates to plastic cement products manufacturing technology field, particularly relate to a kind of method improving PE pipe cylindrical flatness.
Background technology
When producing PE pipe, the cylindrical nao-and micro relief of certified products is not more than 0.8um, and the nao-and micro relief of every about 80 tons of annual meeting output exceeds the defective work of above-mentioned scope, the cylindrical nao-and micro relief of these defective works is between 2.0 microns to 3.2 microns, do not have a kind of defective work method of disposal in prior art, cause production loss larger.
Summary of the invention
For solving the problem, the invention provides a kind of method improving PE pipe cylindrical flatness, the cylindrical nao-and micro relief of defective work can be changed in acceptability limit, thus making it become qualified products, reducing production cost.
A kind of method improving PE pipe cylindrical flatness provided by the invention, comprising:
The high temperature PE pipe leaving shaping mould is cooled, makes the cylindrical skinning of described PE pipe;
Utilize calibration sleeve to carry out sizing to described PE pipe, the cylindrical of described PE pipe and the inner circle of described calibration sleeve fit tightly;
Draw described PE to manage, obtain PE pipe finished product.
Preferably, in the method for above-mentioned raising PE pipe cylindrical flatness, before sizing is carried out to described PE pipe, also comprise: utilize moisture film to cover described PE and manage.
Preferably, in the method for above-mentioned raising PE pipe cylindrical flatness, the water ring being arranged on the front end of described shaping mould is utilized to cool described high temperature PE pipe.
Preferably, in the method for above-mentioned raising PE pipe cylindrical flatness, before described high temperature PE pipe is cooled, also comprise: the temperature of described water ring is regulated.
Preferably, in the method for above-mentioned raising PE pipe cylindrical flatness, the described PE pipe of described traction, obtaining PE pipe finished product is: under the vacuum action of-0.4MPa to 0.8MPa, utilizes hauling machine to draw described PE and manages, obtain PE pipe finished product.
Preferably, in the method for above-mentioned raising PE pipe cylindrical flatness, when drawing described PE pipe, shower water is also utilized to spray described PE pipe.
The method of above-mentioned raising PE pipe cylindrical flatness provided by the invention, owing to cooling the high temperature PE pipe leaving shaping mould, make the cylindrical skinning of described PE pipe, recycling calibration sleeve carries out sizing to described PE pipe, the cylindrical of described PE pipe and the inner circle of described calibration sleeve fit tightly, then draw described PE to manage, obtain PE pipe finished product.Visible, the cylindrical nao-and micro relief of defective work can change in acceptability limit by the method, thus makes it become qualified products, reduces production cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The schematic diagram of the method for the first raising PE pipe cylindrical flatness that Fig. 1 provides for the embodiment of the present application;
The schematic diagram of the method for the second raising PE pipe cylindrical flatness that Fig. 2 provides for the embodiment of the present application.
Detailed description of the invention
Core concept of the present invention is to provide a kind of method improving PE pipe cylindrical flatness, the cylindrical nao-and micro relief of defective work can be changed in acceptability limit, thus make it become qualified products, reduce production cost.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present application provide the first improve the method for PE pipe cylindrical flatness as shown in Figure 1, Fig. 1 provide for the embodiment of the present application the first improve the schematic diagram of the method for PE pipe cylindrical flatness.The method comprises the steps:
S1: the high temperature PE pipe leaving shaping mould is cooled, makes the cylindrical skinning of described PE pipe;
In this step, cool immediately when adopting some measures to make high temperature PE pipe leave shaping mould, utilize principle of expanding with heat and contracting with cold, allow the cylindrical skinning of PE pipe, by the height of controlled cooling model water temperature, the thickness of skinning cortex can be controlled.
S2: utilize calibration sleeve to carry out sizing to described PE pipe, the cylindrical of described PE pipe and the inner circle of described calibration sleeve fit tightly;
In this step, in the environment of vacuum, the cylindrical of PE pipe and the inner circle of calibration sleeve fit tightly, thus determine the diameter of PE pipe.
S3: draw described PE and manage, obtain PE pipe finished product.
In this step, specifically, be under the traction of hauling machine, overcome the frictional force between PE pipe cylindrical and calibration sleeve inner circle, under the cooling of shower water, produce the PE pipe finished product of cylindrical nao-and micro relief≤0.8um simultaneously.
The method of above-mentioned the first raising PE pipe cylindrical flatness that the embodiment of the present application provides, owing to cooling the high temperature PE pipe leaving shaping mould, make the cylindrical skinning of described PE pipe, recycling calibration sleeve carries out sizing to described PE pipe, the cylindrical of described PE pipe and the inner circle of described calibration sleeve fit tightly, then draw described PE to manage, obtain PE pipe finished product.Visible, the cylindrical nao-and micro relief of defective work can change in acceptability limit by the method, thus makes it become qualified products, reduces production cost.
The second that the embodiment of the present application provides improves the method for PE pipe cylindrical flatness as shown in Figure 2, the schematic diagram of the method for the second raising PE pipe cylindrical flatness that Fig. 2 provides for the embodiment of the present application.The method comprises the steps:
A1: the high temperature PE pipe leaving shaping mould is cooled, makes the cylindrical skinning of described PE pipe;
In this embodiment, concrete, in the front end of shaping mould, namely the position of discharging opening increases by a water ring, can first regulate the temperature of described water ring, this adjustment can be determined according to the thickness of required skinning cortex, and the water ring that recycling is arranged on the front end of described shaping mould cools described high temperature PE pipe.
A2: utilize moisture film to cover described PE and manage;
In this step, add moisture film building mortion in the front end of calibration sleeve, allow PE pipe before entering calibration sleeve, directly cooled by the moisture film of thin layer, allow PE duct ligation skin further, thus improve the thickness of skinning cortex further.
A3: utilize calibration sleeve to carry out sizing to described PE pipe, the cylindrical of described PE pipe and the inner circle of described calibration sleeve fit tightly;
A4: draw described PE and manage, obtain PE pipe finished product.
In this step, can, preferably under the vacuum action of-0.4MPa to 0.8MPa, utilize shower water to spray described PE pipe simultaneously, utilize hauling machine to draw described PE and manage, obtain PE pipe finished product.
Utilize said method, when production cost does not change, the waste product in production process can be digested, the nao-and micro relief of circle product external is reduced to from 2.0 microns to 3.2 microns and is no more than 0.8 micron, improve the presentation quality of product.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. improve a method for PE pipe cylindrical flatness, it is characterized in that, comprising:
The high temperature PE pipe leaving shaping mould is cooled, makes the cylindrical skinning of described PE pipe;
Utilize calibration sleeve to carry out sizing to described PE pipe, the cylindrical of described PE pipe and the inner circle of described calibration sleeve fit tightly;
Draw described PE to manage, obtain PE pipe finished product.
2. the method for raising PE pipe cylindrical flatness according to claim 1, is characterized in that, before carrying out sizing to described PE pipe, also comprise: utilize moisture film to cover described PE and manage.
3. the method for raising PE pipe cylindrical flatness according to claim 1, is characterized in that, utilize the water ring being arranged on the front end of described shaping mould to cool described high temperature PE pipe.
4. the method for raising PE pipe cylindrical flatness according to claim 3, is characterized in that, before cooling described high temperature PE pipe, also comprise: regulate the temperature of described water ring.
5. the method for the raising PE pipe cylindrical flatness according to any one of claim 1-4, it is characterized in that, the described PE pipe of described traction, obtaining PE pipe finished product is: under the vacuum action of-0.4MPa to 0.8MPa, utilize hauling machine to draw described PE to manage, obtain PE pipe finished product.
6. the method for raising PE pipe cylindrical flatness according to claim 5, is characterized in that, when drawing described PE pipe, also utilizing shower water to spray described PE pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510738161.5A CN105196516A (en) | 2015-11-03 | 2015-11-03 | Method for improving flatness of excircle of PE (polyethylene) pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510738161.5A CN105196516A (en) | 2015-11-03 | 2015-11-03 | Method for improving flatness of excircle of PE (polyethylene) pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105196516A true CN105196516A (en) | 2015-12-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510738161.5A Pending CN105196516A (en) | 2015-11-03 | 2015-11-03 | Method for improving flatness of excircle of PE (polyethylene) pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105196516A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050154159A1 (en) * | 2004-01-09 | 2005-07-14 | Deslauriers Paul J. | Olefin polymers, method of making, and use thereof |
| CN101249717A (en) * | 2008-04-03 | 2008-08-27 | *** | Method and equipment for manufacturing fire engine hose |
| CN102001183A (en) * | 2009-08-31 | 2011-04-06 | 上海三槐科技有限公司 | Pipemaking machine of secondary composite aluminum plastic hose and method for making composite aluminum plastic hose |
| CN102485460A (en) * | 2010-12-02 | 2012-06-06 | 新疆天业节水灌溉股份有限公司 | Method for producing paper-plastic tube core from paper-plastic composite woven bag wastes |
| CN102672934A (en) * | 2012-05-03 | 2012-09-19 | 河南联塑实业有限公司 | Production method of buried cracking-resistant polyethylene pipeline for fuel gas |
| CN103358532A (en) * | 2012-03-29 | 2013-10-23 | 上海金湖挤出设备有限公司 | Tubular product sizing sleeve |
-
2015
- 2015-11-03 CN CN201510738161.5A patent/CN105196516A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050154159A1 (en) * | 2004-01-09 | 2005-07-14 | Deslauriers Paul J. | Olefin polymers, method of making, and use thereof |
| CN101249717A (en) * | 2008-04-03 | 2008-08-27 | *** | Method and equipment for manufacturing fire engine hose |
| CN102001183A (en) * | 2009-08-31 | 2011-04-06 | 上海三槐科技有限公司 | Pipemaking machine of secondary composite aluminum plastic hose and method for making composite aluminum plastic hose |
| CN102485460A (en) * | 2010-12-02 | 2012-06-06 | 新疆天业节水灌溉股份有限公司 | Method for producing paper-plastic tube core from paper-plastic composite woven bag wastes |
| CN103358532A (en) * | 2012-03-29 | 2013-10-23 | 上海金湖挤出设备有限公司 | Tubular product sizing sleeve |
| CN102672934A (en) * | 2012-05-03 | 2012-09-19 | 河南联塑实业有限公司 | Production method of buried cracking-resistant polyethylene pipeline for fuel gas |
Non-Patent Citations (2)
| Title |
|---|
| 吴念 等: "《塑料挤出生产线使用与维修手册 第2版》", 31 March 2011, 机械工业出版社 * |
| 陈泽成 等: "《塑料挤出机头典型结构设计及试模调机经验汇编》", 28 February 2014, 机械工业出版社 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151230 |
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| RJ01 | Rejection of invention patent application after publication |