KR20000009176A - Synthetic resin screw type hollow pipe having reinforcement layer and manufacturing method - Google Patents
Synthetic resin screw type hollow pipe having reinforcement layer and manufacturing method Download PDFInfo
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- KR20000009176A KR20000009176A KR1019980029415A KR19980029415A KR20000009176A KR 20000009176 A KR20000009176 A KR 20000009176A KR 1019980029415 A KR1019980029415 A KR 1019980029415A KR 19980029415 A KR19980029415 A KR 19980029415A KR 20000009176 A KR20000009176 A KR 20000009176A
- Authority
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- South Korea
- Prior art keywords
- tube
- synthetic resin
- hollow
- small
- pipe
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 229920003002 synthetic resin Polymers 0.000 title claims description 39
- 239000000057 synthetic resin Substances 0.000 title claims description 39
- 230000002787 reinforcement Effects 0.000 title abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 15
- 238000004804 winding Methods 0.000 claims abstract description 3
- 238000000465 moulding Methods 0.000 claims abstract 2
- 230000003014 reinforcing effect Effects 0.000 claims description 16
- 239000004698 Polyethylene Substances 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 5
- 239000006229 carbon black Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims 1
- 238000003825 pressing Methods 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 13
- 239000012790 adhesive layer Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 239000000155 melt Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 241000872198 Serjania polyphylla Species 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Classifications
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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
-
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
-
- 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
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
Description
본 발명은 지하에 매설되는 하수관 또는 전선용 배관 등에 사용되는 보강층을 갖는 합성수지 나선형 중공관 및 제조방법에 관한 것으로서, 보다 상세하게는 단면이 사각형태의 중공부를 갖는 소형관을 압출 성형하고, 기 성형된 소형관을 나선형으로 감는 과정에서 발생되는 내·외부 틈새 및 외부 표면에 용융상태의 합성수지를 공급한 후, 가압로울러에 의해 가압시켜 외표면상에 멜드 라인(meld line)이 없는 보강층이 형성되도록 함으로써 내/외부 표면이 평평하고도 강도 및 내구성이 우수하게 한 보강층을 갖는 합성수지 나선형 중공관 및 제조 방법에 관한 것이다.The present invention relates to a synthetic resin spiral hollow tube having a reinforcing layer used for sewer pipes or electric wire pipes buried underground, and a manufacturing method, and more specifically, extrusion molding a small tube having a hollow hollow section, By supplying the synthetic resin in the molten state to the inner and outer gaps and the outer surface generated in the process of spirally winding the small tube, it is pressurized by a pressure roller to form a reinforcement layer without a melt line on the outer surface. The present invention relates to a synthetic resin spiral hollow tube having a reinforcing layer whose inner and outer surfaces are flat and which has excellent strength and durability.
일반적으로, 지하에 하수도 및 전선용 배관을 매설하는 경우, 시멘트 관에 비해 무게가 가벼우며 작업이 편리하고 내구성이 높아 수명이 긴 합성수지로 제조된 관이 주로 사용되고 있다.In general, in the case of laying underground pipes for sewerage and electric wires, pipes made of synthetic resins having a long lifespan are mainly used because they are light in weight and convenient in operation and have high durability compared to cement pipes.
한편, 첨부 도면 도 1은 기 특허된 대한민국 특허 제136249호(합성수지 이중벽 평활관의 제조방법 및 제조장치)의 도면으로서, 합성수지 압송기가 액상의 합성수지를 일정 정도 가열하면서 수지 저장통으로 압송하면, 수지 저장통은 압출공(62')을 통해 합성수지를 압출한다. 압출된 합성수지는 가이드(63)를 따라 이동되면서 냉각수에 의해 일정 정도 냉각되어 중공 형태의 소형관(49)으로 형성된다. 소형관(49)은 다수의 회전 로울러(64)에 의해 그 외주면들을 따라 일정 간격으로 연속된 나선형을 이루게 되고, 상기 소형관(49)으로 이루어진 나선관의 내측과 외측에 설치된 합성수지 주입 노즐(67)이 나선관의 간극 내외면에 합성수지를 각각 주입한다.On the other hand, Figure 1 is a drawing of the patented Republic of Korea Patent No. 136249 (manufacturing method and apparatus for producing a double-walled smooth pipe of synthetic resin), when the synthetic resin feeder is pumped into the resin reservoir while heating the liquid synthetic resin to a certain degree, Silver extrudes the synthetic resin through the extrusion hole (62 '). The extruded synthetic resin is cooled to a certain degree by the cooling water while being moved along the guide 63 to form a small tube 49 having a hollow shape. The small pipe 49 is formed by a plurality of rotating rollers 64 to form a continuous spiral at regular intervals along its outer circumferential surface, and a synthetic resin injection nozzle 67 installed inside and outside of the spiral pipe made of the small pipe 49. The synthetic resin is injected into the inner and outer surfaces of the spiral tube.
나선관의 간극에 합성수지 접착층(53a)(53b)이 주입되면 압착 로울러(69)가 주입된 합성수지 접착층(53a)(53b)을 상하 방향으로 압착하여 Ⅰ형 빔(53)이 형성되도록 나선관을 상호 접착시키게 된다. 나선관이 상호 접착될 때 압착로울러(69)가 접착 부위를 강하게 압착하므로 내/외주면(51)(54)이 평활하게 되어 합성수지 이중벽 평활관(50)이 형성된다. 이후, 냉각수 분사 노즐(70)이 합성수지 이중벽 평활관의 내/외면 합성수지 접착층(53a)(53b)에 냉각수를 분사하여 냉각시킴으로써 나선형 중공부(52)를 가진 합성수지 이중벽 평활관(50)이 제조된 것을 나타내는 것이다.When the synthetic resin adhesive layers 53a and 53b are injected into the gap between the spiral tubes, the synthetic resin adhesive layers 53a and 53b into which the crimping roller 69 is injected are squeezed upward and downward to form the I-type beam 53. They are glued together. When the spiral pipes are bonded to each other, the pressing roller 69 strongly compresses the bonding site, thereby making the inner / outer peripheral surfaces 51 and 54 smooth, thereby forming the synthetic resin double wall smooth pipe 50. Thereafter, the coolant spray nozzle 70 sprays and cools the coolant to the inner / outer synthetic resin adhesive layers 53a and 53b of the synthetic resin double-walled smooth pipe to cool the synthetic double-walled smooth pipe 50 having the spiral hollow portion 52. To indicate that.
상기와 같은 선특허의 제조방법 및 제조장치에 의해 제조되는 이중벽 평활관은 소형관(49)을 압출함과 동시에 합성수지 접착층(53a)(53b)이 압출되고 연이어 압착롤러(69)가 합성수지 접착층(53a)(53b)을 압착함으로써 내/외주면(51)(54)을 평활하게 하는 것으로 서술되고 있으나, 이는 도 2에 나타낸 바와같이 소형관(49)이나 합성수지 접착층(53a)(53b)이 압출되는 상태는 겔(Gel) 상태임에도 불구하고 소형관(49)의 압출과 동시에 합성수지 접착층(53a)(53b)이 압출되는 과정에서 소형관(49)이 압력을 받아 멜드라인이 형성되면서 그 형태가 일그러지게 됨은 물론 합성수지 접착층(53a)(53b)을 압착롤러(69)가 압착하는 과정에서 그 압력은 더욱 가중되어 소형관(49)의 형태가 불규칙하고도 심하게 일그러져, 냉각시 작용하는 수축 응력과 가세하여 실제로 표면이 평활면으로 되지 못하는 중대한 문제점이 내재됨과 아울러, 소형관(49)의 표면이 외부로 드러난 상태이어서 지층에 매립시 하중에 의해 쉽게 변형되거나 파손되는 결점이 있으며, 특히 유통구조상 완제품이 출하되기 전까지 장기간 동안 야적장에 야적됨이 관례임에도 불구하고 소형관(49)이 제품의 특성상 PE(폴리에틸렌) 재질을 사용하게 됨에 따라 직사광선에 의해 표면이 폭로(暴露) 및 노화(老化)현상을 일으키게 되어 상품가치를 떨어뜨리게 됨과 동시에 구조강도를 저하시키게 되는 등의 중대한 결점이 내재되어 있다.The double-walled smooth pipe manufactured by the manufacturing method and manufacturing apparatus of the above patent is extruded a small pipe (49) and at the same time the synthetic resin adhesive layer (53a) (53b) is extruded, followed by the compression roller 69 is a synthetic resin adhesive layer ( It is described as smoothing the inner / outer peripheral surfaces 51 and 54 by pressing 53a and 53b. However, as shown in FIG. 2, the small pipe 49 and the synthetic resin adhesive layers 53a and 53b are extruded. Although the gel is in a gel state, the compact tube 49 is pressurized in the process of extruding the synthetic resin adhesive layers 53a and 53b at the same time as the compact tube 49 is extruded. In addition to the distortion, the pressure of the pressing roller 69 in the process of pressing the synthetic resin adhesive layer (53a, 53b) is further weighted so that the shape of the small tube 49 is irregular and severely distorted, and the shrinkage stress acting upon cooling In addition, the surface is actually smooth In addition to the inherent serious problems, the surface of the small tube (49) is exposed to the outside, which is a defect that is easily deformed or damaged by load when buried in the ground, especially in the construction structure for a long time before the finished product is shipped Although it is customary to accumulate, as the small pipe 49 uses PE (polyethylene) material due to the characteristics of the product, the surface is exposed and exposed to aging due to direct sunlight, resulting in deterioration of product value. At the same time, there are significant drawbacks such as lowering of structural strength.
본 발명은 이와같은 종래의 문제점을 해결하기 위한 것으로서, 기 압출·성형되어 나선형으로 감겨지는 PE(폴리에틸렌)재 합성수지 소형관 사이의 내부 및 외부 표면상에 용융수지를 공급하여 연속·압착시킴으로써, 멜드라인이 형성되지 않게 되어 표면이 평평하고도 강도가 우수하도록 함과 동시에 외부측에 공급되는 PE재 용융수지에 카본블랙(carbon black)을 혼합함으로써, 외표면에 보강층이 형성되도록 하여 내구성을 향상시킴은 물론, 직사광선에 장기간 노출되더라도 쉽게 폭로 및 노화현상이 일어나지 않도록 한 것이다.SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, by supplying molten resin on the inner and outer surfaces between the PE (polyethylene) -based synthetic resin small pipes which are extruded and molded and spirally wound, and continuously Improved durability by forming a reinforcing layer on the outer surface by mixing carbon black with the PE material molten resin supplied to the outside and making the surface flat and excellent in strength as the draft is not formed. Of course, even if exposed to direct sunlight for a long time, it is easy to expose and aging.
도 1a는 대한민국 특허 제136249호로 등록된 합성수지 이중벽 평활관의 일부가 도시된 사시도Figure 1a is a perspective view of a portion of a synthetic resin double wall smooth tube registered in Korean Patent No. 13,249
도 1b는 대한민국 특허 제136249호로 등록된 합성수지 이중벽 평활관의 일부 단면도1B is a partial cross-sectional view of a synthetic resin double wall smooth tube registered in Korean Patent No. 1342249
도 1c는 대한민국 특허 제136249호로 등록된 합성수지 이중벽 평활관 제조장치의 개략도Figure 1c is a schematic diagram of a synthetic resin double-walled smooth pipe manufacturing apparatus registered in Korea Patent No. 13,249
도 2는 대한민국 특허 제136249호로 등록된 제조방법 및 제조장치에 의해 실제로 제조된 합성수지관의 일부 단면도2 is a partial cross-sectional view of a synthetic resin tube actually manufactured by a manufacturing method and apparatus registered in Korean Patent No. 1342249.
도 3a는 본 발명에 따른 관을 나타내는 일부 절취 사시도3A is a partially cutaway perspective view of a tube according to the present invention
도 3b는 본 발명에 따른 관을 나타내는 일부 확대 단면도3b is a partially enlarged sectional view showing a tube according to the present invention;
도 3c는 본 발명에 따른 관의 제조방법과 제조장치를 나타내는 단면 개략도Figure 3c is a schematic cross-sectional view showing a method and apparatus for producing a tube according to the present invention
도 3d는 본 발명에 따른 관의 제조방법과 제조장치를 나타내는 측면 개략도Figure 3d is a schematic side view showing a method and apparatus for manufacturing a tube according to the present invention
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
10a, 10b, 10c : 수지 압출장치 11 : 중공형 소형관10a, 10b, 10c: resin extrusion device 11: hollow small tube
12 : 주입노즐 12', 12" : 토출구 13 : 드럼12: injection nozzle 12 ', 12 ": discharge port 13: drum
14 : 회전로울러 15 : 구동모우터 16 : 로울러14: rotary roller 15: drive motor 16: roller
17a, 17b : 압착로울러 20 : 보강층17a, 17b: compression roller 20: reinforcement layer
이하, 본 발명을 첨부된 도면에 의해 보다 상세하게 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
도 3a 내지 도 3d에 도시된 바와 같이, 제1압출장치(10a)에 의해 합성수지가 사각형 단면을 갖는 중공형 소형관(11)으로 연속하여 압출·성형되고, 이 성형된 중공형 소형관(11)은 원형 드럼(13)의 외경부에 원주 방향을 따라 일정 간격으로 배치되어 있는 회전 로울러(14)로 이송되어 그 외주면을 따라 연속하여 나선형으로 감기며 근접 소형관과 밀착된 나선형 중공관을 형성하는 것이다.As shown in Figs. 3A to 3D, the synthetic resin is continuously extruded and molded into a hollow small tube 11 having a rectangular cross section by the first extrusion device 10a, and the molded hollow small tube 11 is formed. ) Is transported to the rotary roller 14 which is arranged at regular intervals along the circumferential direction at the outer diameter portion of the circular drum 13 and is continuously spirally wound along its outer circumferential surface to form a spiral hollow tube in close contact with the adjacent small tube. It is.
이때, 회전 로울러(14)는 구동 모우터(15)에 의해 상기 중공형 소형관(11)이 압출되는 속도와 동일한 속도로 회전하게 되며, 제2·제3압출장치(10b)(10c)로 부터 공급되는 이질(異質)의 용융수지가 주입노즐(12)의 각 토출구(12')(12")를 통해 소형관(11)의 접촉부 내 외측으로 각각 공급됨과 동시에, 가열된 주입노즐(12)의 양측면이 기 감겨진 소형관(11)의 측면과 이에 인접되어 공급되는 소형관(11)의 대향 측면에 접촉하면서 대향표면을 겔화(Gel化)시키게 된다.At this time, the rotary roller 14 is rotated at the same speed as the hollow compact pipe 11 is extruded by the drive motor 15, the second and third extrusion apparatus (10b) (10c) Heterogeneous molten resin supplied from the respective injection holes 12 is supplied to the outside of the contact portion of the small pipe 11 through the respective discharge ports 12 'and 12 "of the injection nozzle 12, and the heated injection nozzle 12 Both sides of the c) contact the side of the pre-wound small pipe 11 and the opposite side of the small pipe 11 supplied adjacent thereto to gel the opposite surface.
한편, 계속적으로 공급되면서 대향측면이 겔화된 소형관(11)은 로울러(16)에 의해 기 감겨진 소형관(11)측으로 압력이 가해지면서 겔화된 측표면 상호간에 융착이 이루어지고, 주입노즐(12)의 상하측 토출구(12')(12")를 통해 공급되는 용융수지는 근접한 소형관(11) 사이의 외/내측 틈새로 공급되어 가압로울러(17a)(17b)에 의해 압력이 가해짐으로써 틈새내에 치밀하게 충진됨과 아울러 외/내표면을 평평하게 하는 것이다.On the other hand, the small tube 11, which is continuously supplied and gelled on the opposite side, is pressurized to the small tube 11, which is pre-wound by the roller 16, and is fused between the gelled side surfaces. The molten resin supplied through the upper and lower discharge ports 12 'and 12 "of 12 is supplied to the outer / inner clearance between the adjacent small pipes 11, and is pressurized by the pressure rollers 17a and 17b. By filling densely within the gap, it also flattens the outer and inner surfaces.
여기에서, 상측 토출구(12')를 통해 공급되는 용융수지는 외측틈새를 채울 수 있는 양보다도 훨씬 많은 양이 공급되도록 함으로써 틈새를 채우고 남는 용융수지가 가압로울러(17a)에 의해 옆으로 넓게 펼쳐져 표면이 평평한 보강층(20)을 형성하게 되고, 냉각수에 의해 냉각되어 내/외측 표면이 평평한 나선형 중공관이 성형되는 것이다.Here, the molten resin supplied through the upper discharge port 12 ′ is supplied with a much larger amount than the amount that can fill the outer gap so that the remaining molten resin is widened laterally by the pressure roller 17a to fill the gap. This flat reinforcement layer 20 is formed, and is cooled by cooling water to form a spiral hollow tube having a flat inner / outer surface.
이와 같이하여, 합성수지 나선형 중공관의 외부 표면에 멜드라인에 의한 불연속적인 접합면이 발생되지 않도록 함으로써 표면이 매끄러운 보강층(20)을 형성하게 되며, 복수개의 수지 압출장치(10a)(10b)(10c)를 사용하여 재질 및 색상이 다른(또는 동일한 재질도 무관함) 두개의 층(내부 소형관 및 외부 보강층)을 접합시키므로써, 강도 및 내구성이 우수한 합성수지 나선형 중공관을 제조할 수 있는 것이다.In this way, the surface of the synthetic resin spiral hollow tube does not generate a discontinuous bonding surface by the melt line to form a smooth reinforcing layer 20, a plurality of resin extrusion apparatus (10a) (10b) ( By using 10c) to join two layers (inner small tube and outer reinforcing layer) of different materials and colors (or irrespective of the same material), a synthetic resin spiral hollow tube having excellent strength and durability can be manufactured.
한편, 외부 표면에 공급되는 합성수지를 카본 블랙이 함유된 PE를 사용하고 중공형 소형관(11) 및 내부에 공급되는 합성수지를 흰색상의 PE를 사용하는 경우에는 관이 외부에 노출되더라도 카본 블랙이 함유된 보강층(20)에 의해 자외선이 차단되어 폭로 및 노화 현상으로부터 관을 보호할 수 있으며, 내시경을 통해 관 내부의 손상 및 내용물을 검사하는 경우에는 흰색상의 표면이 반사효과를 유발하여 선명하게 내부를 관찰할 수 있는 것이다.On the other hand, when the synthetic resin supplied to the outer surface uses PE containing carbon black and the hollow compact pipe 11 and the synthetic resin supplied to the inside use white PE, carbon black is contained even if the tube is exposed to the outside. UV rays are blocked by the reinforced reinforcing layer 20 to protect the tube from exposure and aging, and when inspecting the damage and contents inside the tube through an endoscope, the white surface causes the reflection effect to provide a clear interior. It can be observed.
이와같이, 본 발명에 따른 제조방법을 이용하여 형태가 균일하고 내·외부 표면이 평평하면서도 외표면에 보강층이 형성된 중공관을 제조함에 따라, 외부 충격에 의해 발생되는 보강층의 분리에 따른 파손을 방지할 수 있고, 특히 보강층에는 멜드라인과 요철부가 발생되지 않아 강도를 증대시킴과 동시에 외부 노출에 의한 폭로 및 노화현상을 방지하여 내구성을 향상시키는 효과가 있다.As such, by using the manufacturing method according to the present invention to produce a hollow tube having a uniform shape and a flat inner and outer surfaces and a reinforcing layer formed on the outer surface, it is possible to prevent breakage due to separation of the reinforcing layer caused by external impact. In particular, the reinforcing layer does not generate a melt line and uneven portion to increase the strength and at the same time has the effect of preventing exposure and aging caused by external exposure to improve durability.
Claims (3)
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| Application Number | Priority Date | Filing Date | Title |
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| KR1019980029415A KR100278849B1 (en) | 1998-07-22 | 1998-07-22 | Synthetic Resin Spiral Hollow Tube with Reinforcement Layer and Manufacturing Method |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1019980029415A KR100278849B1 (en) | 1998-07-22 | 1998-07-22 | Synthetic Resin Spiral Hollow Tube with Reinforcement Layer and Manufacturing Method |
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| KR20000009176A true KR20000009176A (en) | 2000-02-15 |
| KR100278849B1 KR100278849B1 (en) | 2001-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020083728A (en) * | 2001-04-30 | 2002-11-04 | 방태순 | The installing method for the handy toilet which is utilized by high intensity panel |
| KR100449157B1 (en) * | 2001-09-10 | 2004-09-16 | 대림산업 주식회사 | Sewer Pipe |
| KR100449158B1 (en) * | 2001-09-10 | 2004-09-16 | 대림산업 주식회사 | Foamed Sewer Pipe |
| KR100458312B1 (en) * | 2002-01-23 | 2004-11-26 | 주식회사 한국화이바 | A glass fiber pipe and making method for the passage in the ground |
| KR100667238B1 (en) * | 2005-06-16 | 2007-01-12 | (주) 제일산업 | A manufacturing methods of a spiral multiple pipe |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434759A (en) * | 2000-04-17 | 2003-08-06 | 柏霸克斯环境工学株式会社 | Spiral pipe using waste plastic material and manufacturing apparatus thereof |
| KR20020088630A (en) * | 2001-05-18 | 2002-11-29 | 방태순 | Using of waste stuff twisted pe pipe and the manufacturing method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH066348B2 (en) * | 1988-06-03 | 1994-01-26 | 株式会社ダイカロン化工 | Method and apparatus for manufacturing corrugated pipe |
| KR0136249B1 (en) * | 1993-09-03 | 1998-04-11 | 박기종 | Method for the production of double wall panel |
-
1998
- 1998-07-22 KR KR1019980029415A patent/KR100278849B1/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020083728A (en) * | 2001-04-30 | 2002-11-04 | 방태순 | The installing method for the handy toilet which is utilized by high intensity panel |
| KR100449157B1 (en) * | 2001-09-10 | 2004-09-16 | 대림산업 주식회사 | Sewer Pipe |
| KR100449158B1 (en) * | 2001-09-10 | 2004-09-16 | 대림산업 주식회사 | Foamed Sewer Pipe |
| KR100458312B1 (en) * | 2002-01-23 | 2004-11-26 | 주식회사 한국화이바 | A glass fiber pipe and making method for the passage in the ground |
| KR100667238B1 (en) * | 2005-06-16 | 2007-01-12 | (주) 제일산업 | A manufacturing methods of a spiral multiple pipe |
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| KR100278849B1 (en) | 2001-02-01 |
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