CN113105680B - Ultrahigh molecular weight polyethylene pipe and production process thereof - Google Patents
Ultrahigh molecular weight polyethylene pipe and production process thereof Download PDFInfo
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- CN113105680B CN113105680B CN202110271873.6A CN202110271873A CN113105680B CN 113105680 B CN113105680 B CN 113105680B CN 202110271873 A CN202110271873 A CN 202110271873A CN 113105680 B CN113105680 B CN 113105680B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- 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
- B29D23/001—Pipes; Pipe joints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/068—Ultra high molecular weight polyethylene
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Abstract
The invention discloses an ultra-high molecular weight polyethylene pipe and a production process thereof. The process comprises the following steps: extruding an ultrahigh molecular weight polyethylene material into a machine head, extruding a low density polyethylene material into the machine head, converging the two materials at the machine head, and extruding and molding the two materials into a composite pipe by the machine head, wherein the ultrahigh molecular weight polyethylene material forms an inner wall layer of the composite pipe, and the low density polyethylene material forms an outer wall layer of the composite pipe; and removing the outer wall layer of the composite pipe by turning to obtain the ultrahigh molecular weight polyethylene pipe. The invention ensures the excellent performance of the ultra-high molecular weight polyethylene pipe, and improves the defects of surface quality, mechanical strength reduction and the like caused by melt fracture by utilizing the lubricity of the low-density polyethylene; the production equipment has the advantages of simple modification, low cost and the like.
Description
Technical Field
The invention belongs to the technical field of plastic pipe processing, and particularly relates to an ultrahigh molecular weight polyethylene pipe and a production process thereof.
Background
The ultra-high molecular weight polyethylene is a high molecular thermoplastic engineering plastic with excellent comprehensive performance, and has super wear resistance, self-lubricating property, high strength, stable chemical property and strong ageing resistance. However, ultra-high molecular weight polyethylene has very poor flowability in the molten state and almost zero melt index, which greatly affects its processability. The processing methods of the ultra-high molecular weight polyethylene currently used include pressing sintering, extrusion molding, injection molding and the like. The ultra-high molecular weight polyethylene pipe takes ultra-high molecular weight polyethylene as a main raw material, and has the characteristics of light weight, convenience in installation and construction and strong low temperature resistance besides the excellent characteristics of the raw material. The production mode of the current ultra-high molecular weight polyethylene pipe is usually that one extruder is used for direct extrusion, and because the processability of the ultra-high molecular weight polyethylene is poor, a plastic melt is difficult to reach a complete melting state to form a uniform state, so that the surface quality of the extruded pipe is poor, and the performance of a product is influenced.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide an ultrahigh molecular weight polyethylene pipe and a production process thereof.
The invention aims to overcome the defects of the prior art and provide the ultrahigh molecular weight pipe which ensures the surface quality and the mechanical property of the pipe, is simple to modify production equipment and has lower cost.
The invention also aims to provide production equipment of the ultra-high molecular weight polyethylene pipe.
The purpose of the invention is realized by at least one of the following technical solutions.
The ultra-high molecular weight polyethylene pipe provided by the invention is composed of an inner wall layer and an outer wall layer; the inner wall layer is made of ultra-high molecular weight polyethylene material, and the material enters a machine head neck mold from a main machine of the extruder and is a main body of the pipe; the outer wall layer is used as a sacrificial layer and is made of low-density polyethylene materials, the materials enter from an extruder auxiliary machine, and the two materials are converged at the extruder head and then are molded into a composite pipe; and then, the outer wall layer of the low-density polyethylene is machined by turning to obtain the ultrahigh molecular weight polyethylene pipe.
The invention provides a production process of an ultrahigh molecular weight polyethylene pipe, which specifically comprises the following steps:
(1) the method comprises the following steps that an ultrahigh molecular weight polyethylene material enters a machine head from a main extruder, a low density polyethylene material enters the machine head from an auxiliary extruder, the main extruder and the auxiliary extruder share one machine head, the two materials are converged at the machine head and are extruded and molded into a composite pipe through the machine head, the ultrahigh molecular weight polyethylene material forms an inner wall layer of the composite pipe, and the low density polyethylene material forms an outer wall layer of the composite pipe;
(2) and (3) turning the composite pipe in the step (1) to remove an outer wall layer to obtain the ultrahigh molecular weight polyethylene pipe.
Further, the ultra-high molecular weight polyethylene material in the step (1) is UHMWPE.
Further, the low density polyethylene material in the step (1) is LDPE.
Further, the extruder main machine and the extruder auxiliary machine in the step (1) are respectively composed of a transmission device, a hopper and a charging barrel; the transmission device, the hopper and the charging barrel are connected in sequence.
Further, a transmission device of the extruder main machine is a screw transmission device; the diameter of the screw transmission device is 80-120 mm; the length-diameter ratio L/D of the screw is 20-25; the rotating speed of the screw is 12-15 r/min; the feeding speed of the transmission device is 12-15 kg/h.
Preferably, the transmission device of the extruder main machine is a screw transmission device; the screw diameter of the screw transmission device is 90 mm; the length-diameter ratio L/D of the screw is 25.
Further, a charging barrel of the extruder main machine is a sectional type heating barrel; the first section heating temperature of the charging barrel is 140-160 ℃, the second section heating temperature of the charging barrel is 160-180 ℃, and the third section heating temperature of the charging barrel is 180-210 ℃.
Preferably, the barrel of the extruder main machine is a sectional heating barrel; the first section of the charging barrel is heated at 140 ℃, the second section of the charging barrel is heated at 165 ℃, and the third section of the charging barrel is heated at 185 ℃.
Further, a transmission device of the auxiliary machine of the extruder is a screw transmission device; the diameter of the screw transmission device is 55-75 mm; the length-diameter ratio L/D of the screw is 20-28; the rotating speed of the screw is 20-25 r/min; the feeding speed of the transmission device is 25-30 kg/h.
Preferably, the transmission device of the auxiliary machine of the extruder is a screw transmission device; the screw diameter of the screw transmission device is 65 mm; the length-diameter ratio L/D of the screw is 28.
Further, a charging barrel of an auxiliary machine of the extruder is a one-section heating barrel; the temperature of the barrel is 170-190 ℃.
Preferably, the cylinder of the extruder auxiliary machine is a one-stage heating cylinder; the temperature of the barrel was 180 ℃.
Further, the outer diameter of the composite pipe in the step (1) is 75-80mm, the thickness of the outer wall layer is 2-3mm, and the thickness of the inner wall layer is 5-7 mm.
The machine head is connected with the extruder main machine through an inner layer connector; is connected with the auxiliary machine of the extruder through an outer connector. The super-molecular weight polyethylene is shunted by a shunt shuttle after passing through a filter plate and then is converged with the low-density polyethylene which also passes through the filter plate, the pipe is extruded through a neck mold of a machine head, and finally the outer wall layer of the low-density polyethylene is turned to obtain the super-molecular weight polyethylene pipe.
The invention provides an ultrahigh molecular weight polyethylene pipe prepared by the production process of the ultrahigh molecular weight polyethylene pipe.
The invention ensures the excellent performance of the ultra-high molecular weight polyethylene pipe, and improves the defects of surface quality, mechanical strength reduction and the like caused by melt fracture by utilizing the lubricity of the low-density polyethylene; the production equipment has the advantages of simple modification, low cost and the like.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the ultra-high molecular weight polyethylene pipe provided by the invention adopts a processing method of low-density polyethylene and ultra-high molecular weight polyethylene double-layer co-extrusion, so that the surface quality and the performance of the pipe can be improved;
(2) the preparation method provided by the invention has the advantages that the required production equipment of the ultra-high molecular weight polyethylene pipe is simple, the process is simple, and the cost can be reduced.
Drawings
FIG. 1 is a schematic structural view of a production apparatus in an embodiment of the present invention;
the extruder comprises an extruder main machine transmission device 1, an extruder main machine hopper 2, an extruder main machine charging barrel 3, an extruder auxiliary machine transmission device 4, an extruder auxiliary machine hopper 5, an extruder auxiliary machine charging barrel 6, a machine head 7 and a composite pipe 8. FIG. 2 is a schematic representation of an ultra-high molecular weight polyethylene pipe prior to turning in an embodiment of the present invention;
wherein, a UHWWPE pipe layer 9 and a LDPE sacrificial layer 10.
Detailed Description
The following examples are presented to further illustrate the practice of the invention, but the practice and protection of the invention is not limited thereto. It is noted that the processes described below, if not specifically described in detail, are all realizable or understandable by those skilled in the art with reference to the prior art. The reagents or apparatus used are not indicated to the manufacturer, and are considered to be conventional products available by commercial purchase.
Before turning is not completed, the ultra-high molecular weight polyethylene pipe provided in the following embodiment is composed of an inner wall layer (i.e., an UHWWPE pipe layer 9) and an outer wall layer (i.e., an LDPE sacrificial layer 10), wherein the inner wall layer is composed of an ultra-high molecular weight polyethylene material, and the material enters a head die from a host machine of an extruder to be a pipe main body; the outer wall layer is used as a sacrificial layer and is made of low-density polyethylene materials, the materials enter from an extruder auxiliary machine, and the two materials are converged at the extruder head and then extruded into a composite pipe; and then, the outer wall layer of the low-density polyethylene (namely the LDPE sacrificial layer 10) is machined by turning to obtain the ultrahigh molecular weight polyethylene pipe.
Referring to fig. 1, the production equipment of the ultra-high molecular weight polyethylene pipe used in the following embodiment includes an extruder main machine, an extruder auxiliary machine and a machine head, wherein the machine head is connected with the extruder main machine through an inner layer connector; is connected with the auxiliary machine of the extruder through an outer connector. The extruder main machine consists of an extruder main machine transmission device 1, an extruder main machine hopper 2 and an extruder main machine charging barrel 3; the extruder auxiliary machine consists of an extruder auxiliary machine transmission device 4, an extruder auxiliary machine hopper 5 and an extruder auxiliary machine charging barrel 6; the ultra-high molecular weight polyethylene enters a machine head 7 through an extruder main machine to become an inner wall layer of the composite pipe 8; the low-density polyethylene enters the machine 7 through an extruder auxiliary machine to become the outer wall layer of the composite pipe 8. The ultrahigh molecular weight polyethylene is shunted by a shunt shuttle after passing through a filter plate of a main machine of the extruder and then is converged with the low density polyethylene which also passes through the filter plate, and after being extruded by a neck ring mold of a machine head, the outer wall layer of the low density polyethylene is machined to obtain the ultrahigh molecular weight polyethylene pipe.
Example 1
The inner wall layer of the ultra-high molecular weight polyethylene pipe extruded by the ultra-high molecular weight polyethylene pipe production equipment is ultra-high molecular weight polyethylene (UHMWPE), and the outer wall sacrificial layer is Low Density Polyethylene (LDPE).
The method comprises the following steps:
a double-layer co-extrusion pipe neck mold is adopted, wherein a transmission device of a main machine of an extruder is a screw transmission device, the diameter of a screw is 90mm, the length-diameter ratio L/D of the screw is 25, the rotating speed of the screw is 12-15r/min, and the feeding speed is 12-15kg/h, and the double-layer co-extrusion pipe neck mold is used for extruding ultrahigh molecular weight polyethylene (UHMWPE); the extruder auxiliary machine transmission device is a screw transmission device, the diameter of the screw is 65mm, the length-diameter ratio L/D of the screw is 28, the rotating speed of the screw is 20-25r/min, and the feeding speed is 25-30kg/h, and the screw transmission device is used for extruding a low-density polyethylene sacrificial Layer (LDPE). Extruder host computer feed cylinder is sectional type heating cylinder, and extruder host computer heating section temperature is respectively: the first section is 140 ℃, the second section is 165 ℃, and the third section is 185 ℃; the charging barrel of the extruder auxiliary machine is a one-section heating barrel, and the temperature is 180 ℃. The thickness of the inner wall and the outer wall of the pipe can be controlled by adjusting the rotating speed of a screw of an extruder, the ultra-high molecular weight polyethylene composite pipe (the structure can be shown in figure 2) is extruded, the outer diameter of the pipe is 75mm, the thickness of an outer wall sacrificial layer (LDPE sacrificial layer 10) is 2mm, and the thickness of an inner wall ultra-high molecular weight polyethylene layer (UHWWPE pipe layer 9) is 5 mm. And removing the outer wall sacrificial layer by a turning process to finally obtain the ultrahigh molecular weight polyethylene pipe with the wall thickness of 4.8 mm. Mechanical tests (the test standard refers to GB/T8804.3-2003, the same below) are carried out on the finally obtained ultrahigh molecular weight polyethylene pipe, and the tensile strength of the pipe reaches 23.79MPa, the breaking elongation reaches 313.24%, and the tensile strength is respectively improved by 8.14% and 5.46% compared with that of a directly extruded UHMWPE pipe with the same size.
Example 2
The inner wall layer of the ultra-high molecular weight polyethylene pipe extruded by the ultra-high molecular weight polyethylene pipe production equipment is ultra-high molecular weight polyethylene (UHMWPE), and the outer wall sacrificial layer is Low Density Polyethylene (LDPE).
The method comprises the following steps:
a double-layer co-extrusion pipe mouth mold is adopted, wherein a transmission device of a main extruder is a screw transmission device, the diameter of a screw of the main extruder is 120mm, the length-diameter ratio L/D of the screw is 25, the rotating speed of the screw is 10-15r/min, and the feeding speed is 15-20kg/h, and the double-layer co-extrusion pipe mouth mold is used for extruding ultrahigh molecular weight polyethylene (UHMWPE); the extruder auxiliary machine transmission device is a screw transmission device, the diameter of the screw is 60mm, the length-diameter ratio L/D of the screw is 25, the rotating speed of the screw is 15-25r/min, and the feeding speed is 20-25kg/h, and the screw transmission device is used for extruding a low-density polyethylene sacrificial Layer (LDPE). Extruder host computer feed cylinder is sectional type heating cylinder, and extruder host computer heating section temperature is respectively: the first section is 140 ℃, the second section is 165 ℃, and the third section is 185 ℃; the extruder auxiliary material cylinder is a one-stage heating cylinder, and the temperature is 175 ℃. The thickness of the inner wall and the outer wall of the pipe can be controlled by adjusting the rotating speed of a screw of an extruder to extrude the ultra-high molecular weight polyethylene composite pipe, the outer diameter of the pipe is 80mm, the thickness of the ultra-high molecular weight polyethylene layer on the inner wall is 7mm, and the thickness of the sacrificial layer on the outer wall is 3 mm. And (4) processing the outer wall sacrificial layer by a turning process to obtain the ultra-high molecular weight polyethylene pipe with the wall thickness of 6.8 mm. Mechanical tests on the finally obtained ultrahigh molecular weight polyethylene pipe show that the tensile strength of the pipe reaches 24.31MPa, the elongation at break reaches 321.42%, and the tensile strength and the elongation at break are respectively improved by 10.5% and 8.72% compared with those of the directly extruded ultrahigh molecular weight polyethylene pipe with the same size.
Example 3
The inner wall layer of the ultra-high molecular weight polyethylene pipe extruded by the ultra-high molecular weight polyethylene pipe production equipment is ultra-high molecular weight polyethylene (UHMWPE), and the outer wall sacrificial layer is Low Density Polyethylene (LDPE).
The method comprises the following steps:
a double-layer co-extrusion pipe mouth mold is adopted, wherein a transmission device of a main extruder is a screw transmission device, the diameter of a screw of the main extruder is 80mm, the length-diameter ratio L/D of the screw is 25, the rotating speed of the screw is 10-15r/min, and the feeding speed is 15-20kg/h, and the double-layer co-extrusion pipe mouth mold is used for extruding ultrahigh molecular weight polyethylene (UHMWPE); the extruder auxiliary machine transmission device is a screw transmission device, the diameter of the screw is 75mm, the length-diameter ratio L/D of the screw is 20, the rotating speed of the screw is 15-25r/min, and the feeding speed is 20-25kg/h, and the screw transmission device is used for extruding a low-density polyethylene sacrificial Layer (LDPE). Extruder host computer feed cylinder is sectional type heating cylinder, and extruder host computer heating section temperature is respectively: the first section is 160 ℃, the second section is 175 ℃, and the third section is 190 ℃; the charging barrel of the extruder auxiliary machine is a one-section heating barrel, and the temperature is 190 ℃. The thickness of the inner wall and the outer wall of the pipe can be controlled by adjusting the rotating speed of a screw of an extruder to extrude the ultra-high molecular weight polyethylene composite pipe, the outer diameter of the pipe is 75mm, the thickness of the ultra-high molecular weight polyethylene layer on the inner wall is 6.2mm, and the thickness of the sacrificial layer on the outer wall is 2 mm. And (4) processing the outer wall sacrificial layer by a turning process to obtain the ultra-high molecular weight polyethylene pipe with the wall thickness of 6 mm. Mechanical tests on the finally obtained ultrahigh molecular weight polyethylene pipe show that the tensile strength of the pipe reaches 24.17MPa, the elongation at break reaches 317.58%, and the tensile strength and the elongation at break are respectively improved by 9.26% and 6.83% compared with those of the directly extruded ultrahigh molecular weight polyethylene pipe with the same size.
Example 4
The inner wall layer of the ultra-high molecular weight polyethylene pipe extruded by the ultra-high molecular weight polyethylene pipe production equipment is ultra-high molecular weight polyethylene (UHMWPE), and the outer wall sacrificial layer is Low Density Polyethylene (LDPE).
The method comprises the following steps:
a double-layer co-extrusion pipe neck mold is adopted, wherein a transmission device of a main extruder is a screw transmission device, the diameter of a screw of the main extruder is 100mm, the length-diameter ratio L/D of the screw is 20, the rotating speed of the screw is 10-15r/min, and the feeding speed is 15-20kg/h, and the double-layer co-extrusion pipe neck mold is used for extruding ultrahigh molecular weight polyethylene (UHMWPE); the extruder auxiliary machine transmission device is a screw transmission device, the diameter of the screw is 55mm, the length-diameter ratio L/D of the screw is 20, the rotating speed of the screw is 15-25r/min, and the feeding speed is 20-25kg/h, and the screw transmission device is used for extruding a low-density polyethylene sacrificial Layer (LDPE). Extruder host computer feed cylinder is sectional type heating cylinder, and extruder host computer heating section temperature is respectively: the first section is 155 ℃, the second section is 175 ℃, and the third section is 200 ℃; the charging barrel of the extruder auxiliary machine is a one-stage heating barrel, and the temperature is 185 ℃. The thickness of the inner wall and the outer wall of the pipe can be controlled by adjusting the rotating speed of a screw of an extruder to extrude the ultra-high molecular weight polyethylene composite pipe, the outer diameter of the pipe is 78mm, the thickness of the ultra-high molecular weight polyethylene layer on the inner wall is 6mm, and the thickness of the sacrificial layer on the outer wall is 2 mm. And (4) processing the outer wall sacrificial layer by a turning process to obtain the ultrahigh molecular weight polyethylene pipe with the wall thickness of 5.8 mm. Mechanical tests on the finally obtained ultrahigh molecular weight polyethylene pipe show that the tensile strength of the pipe reaches 23.65MPa, the elongation at break reaches 316.92%, and the tensile strength and the elongation at break are respectively improved by 7.84% and 6.07% compared with those of a directly extruded UHMWPE pipe with the same size.
The above examples are only preferred embodiments of the present invention, which are intended to be illustrative and not limiting, and those skilled in the art should understand that they can make various changes, substitutions and alterations without departing from the spirit and scope of the invention.
Claims (10)
1. The production process of the ultra-high molecular weight polyethylene pipe is characterized by comprising the following steps:
(1) the method comprises the following steps of (1) enabling an ultrahigh molecular weight polyethylene material to enter a machine head from a main extruder, enabling a low density polyethylene material to enter the machine head from an auxiliary extruder, enabling the two materials to be converged at the machine head, and extruding and molding the two materials into a composite pipe by the machine head, wherein the ultrahigh molecular weight polyethylene material forms an inner wall layer of the composite pipe, and the low density polyethylene material forms an outer wall layer of the composite pipe;
(2) and (3) turning the composite pipe in the step (1) to remove an outer wall layer to obtain the ultrahigh molecular weight polyethylene pipe.
2. The process for producing ultra-high molecular weight polyethylene tubing according to claim 1, wherein the ultra-high molecular weight polyethylene material of step (1) is UHMWPE.
3. The process for producing ultra-high molecular weight polyethylene tubing as claimed in claim 1, wherein the low density polyethylene material of step (1) is LDPE.
4. The process for producing an ultra-high molecular weight polyethylene pipe according to claim 1, wherein the extruder main machine and the extruder auxiliary machine in the step (1) are both composed of a transmission device, a hopper and a charging barrel; the transmission device, the hopper and the charging barrel are connected in sequence.
5. The process for producing an ultra-high molecular weight polyethylene pipe according to claim 4, wherein the transmission device of the extruder main machine is a screw transmission device; the diameter of the screw transmission device is 80-100 mm; the length-diameter ratio L/D of the screw is 20-25; the rotating speed of the screw is 12-15 r/min; the feeding speed of the transmission device is 12-15 kg/h.
6. The process for producing an ultra-high molecular weight polyethylene pipe according to claim 4, wherein a barrel of a main machine of the extruder is a sectional heating barrel; the first section heating temperature of the charging barrel is 140-160 ℃, the second section heating temperature of the charging barrel is 160-180 ℃, and the third section heating temperature of the charging barrel is 180-210 ℃.
7. The process for producing an ultra-high molecular weight polyethylene pipe according to claim 4, wherein the transmission of the extruder auxiliary machinery is a screw transmission; the diameter of the screw transmission device is 55-75 mm; the length-diameter ratio L/D of the screw is 20-28; the rotating speed of the screw is 20-25 r/min; the feeding speed of the transmission device is 25-30 kg/h.
8. The process for producing an ultra-high molecular weight polyethylene pipe according to claim 4, wherein a barrel of the extruder auxiliary machine is a one-stage heating barrel; the temperature of the barrel is 170-190 ℃.
9. The process for producing an ultra-high molecular weight polyethylene pipe according to claim 1, wherein the outer diameter of the composite pipe in step (1) is 75-80mm, the thickness of the outer wall layer is 2-3mm, and the thickness of the inner wall layer is 5-7 mm.
10. An ultra high molecular weight polyethylene pipe produced by the process for producing an ultra high molecular weight polyethylene pipe according to any one of claims 1 to 9.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003056759A (en) * | 2001-08-20 | 2003-02-26 | Yokohama Hydex Co | Wear resistant high-pressure rubber hose and its manufacturing method |
| CN103672197A (en) * | 2013-12-24 | 2014-03-26 | 贵州蓝图新材料有限公司 | Ultra-high molecular weight polyethylene mining delivery pipe through multi-layer coextrusion method and manufacturing method thereof |
| EP2805823A2 (en) * | 2013-05-22 | 2014-11-26 | egeplast international GmbH | Plastic pipe with at least two layers |
| CN105377547A (en) * | 2013-06-03 | 2016-03-02 | 通用电气石油和天然气英国有限公司 | Flexible pipe body layer and method of producing same |
| BG3754U1 (en) * | 2020-04-24 | 2020-06-30 | „Инстал Инженеринг Св“ Оод | Antibacterial water pipes and technology line for their production |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012082889A1 (en) * | 2010-12-14 | 2012-06-21 | Graco Inc. | Peristaltic pump hose |
-
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- 2021-03-12 CN CN202110271873.6A patent/CN113105680B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003056759A (en) * | 2001-08-20 | 2003-02-26 | Yokohama Hydex Co | Wear resistant high-pressure rubber hose and its manufacturing method |
| EP2805823A2 (en) * | 2013-05-22 | 2014-11-26 | egeplast international GmbH | Plastic pipe with at least two layers |
| CN105377547A (en) * | 2013-06-03 | 2016-03-02 | 通用电气石油和天然气英国有限公司 | Flexible pipe body layer and method of producing same |
| CN103672197A (en) * | 2013-12-24 | 2014-03-26 | 贵州蓝图新材料有限公司 | Ultra-high molecular weight polyethylene mining delivery pipe through multi-layer coextrusion method and manufacturing method thereof |
| BG3754U1 (en) * | 2020-04-24 | 2020-06-30 | „Инстал Инженеринг Св“ Оод | Antibacterial water pipes and technology line for their production |
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