KR100791549B1 - Method for mamufacturing an acidophilic pipe and a winding tape therefor - Google Patents

Method for mamufacturing an acidophilic pipe and a winding tape therefor Download PDF

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KR100791549B1
KR100791549B1 KR1020060109294A KR20060109294A KR100791549B1 KR 100791549 B1 KR100791549 B1 KR 100791549B1 KR 1020060109294 A KR1020060109294 A KR 1020060109294A KR 20060109294 A KR20060109294 A KR 20060109294A KR 100791549 B1 KR100791549 B1 KR 100791549B1
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South Korea
Prior art keywords
winding
tape
wound
yarn tape
base sheet
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KR1020060109294A
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Korean (ko)
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최금진
김승현
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월드테크 주식회사
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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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/583—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

A method for manufacturing an acidophilic pipe and a wound yarn tape therefor are provided to prevent waste of synthetic resin by preventing the synthetic resin from falling, and firmly wind the wound yarn tape onto a mandril. A method for manufacturing an acidophilic pipe includes a step(S1) of producing mixture resin by mixing synthetic resin and a hardening agent, a step(S21) of producing a base sheet by weaving glass fiber into a web, a step(S2) of producing a wound yarn tape by bonding a plurality of yarns onto the base sheet, a step(S3) of forming a release layer on an outer surface of a mandril, a step(S4) of applying the mixture resin onto the wound yarn tape, and winding the tape onto the mandril, a step(S5) of hardening the mixture resin on the tape wound on the mandril, and a step(S6) of releasing the tape from the mandril.

Description

내산성 관체 제조방법 및 이를 위한 권취사 테이프{METHOD FOR MAMUFACTURING AN ACIDOPHILIC PIPE AND A WINDING TAPE THEREFOR} METHOD FOR MAMUFACTURING AN ACIDOPHILIC PIPE AND A WINDING TAPE THEREFOR}

도 1은 종래의 기술에 따른 내산성 관체 제조장치의 일예를 나타낸 개략적 사시도,1 is a schematic perspective view showing an example of an acid resistant tube manufacturing apparatus according to the prior art,

도 2는 본 발명의 일실시예에 따른 내산성 관체 제조방법을 나타낸 흐름도, 2 is a flow chart showing a method for producing an acid resistant tube according to an embodiment of the present invention;

도 3과 도 4는 본 발명의 일실시예에 따른 내산성 관체 제조용 권취사 테이프를 나타낸 도,3 and 4 is a view showing a winding yarn tape for producing an acid-resistant tube according to an embodiment of the present invention,

도 5는 도 3과 도 4에 도시된 권취사 테이프의 사용상태를 나타낸 개략적 사시도이다.FIG. 5 is a schematic perspective view showing a state of use of the winding yarn tape shown in FIGS. 3 and 4.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

3 : 관체 10 : 권취사 테이프 3: tube body 10: winding yarn tape

11 : 베이스 시트지 12 : 권취사 11: base sheet 12: winding

본 발명은 내산성 관체 제조방법에 관한 것으로, 특히 합성수지재가 함침된 피권취물을 원통형으로 권취하여 내산성 관체를 제조하는 방법에 관한 것이다.The present invention relates to a method for producing an acid resistant tube, and more particularly, to a method for manufacturing an acid resistant tube by winding a wound object impregnated with a synthetic resin material in a cylindrical shape.

일반적으로, 저수조 및 정화조, 내산성 화학약품 저장탱크 등의 제조시 사용되는 관체는 원통형의 드럼체의 외주면에 수지를 함침한 필라멘트사를 일정두께로 도포하여 건조하고 내측에 투입된 드럼체를 분리시켜 제조된다.In general, the tubular body used in the manufacture of a water storage tank, a septic tank, an acid resistant chemical storage tank, etc. is manufactured by applying a filament yarn impregnated with resin to the outer circumferential surface of a cylindrical drum body to a certain thickness, and separating the drum body injected into the inside. do.

예를 들어, 한국공개특허 제10-2004-51758호에 개시된 「대형관체의 제조장치」를 보면, 도 1에 도시된 바와 같이, 양단이 축받침(2')에 지지되는 드럼체(1')의 일측에 드럼체의 축방향으로 이송되는 필라멘트공급장치(3')를 구비하여 필라멘트공급장치를 좌우로 이송하여 드럼체(1')의 표면에 수지가 함침된 필라멘트사를 일정두께로 도포하여 건조후에 내측에 투입된 드럼체(1')를 뽑아내면 관체가 완성되게 된다.For example, referring to the "manufacture apparatus for a large tube body" disclosed in Korean Patent Laid-Open Publication No. 10-2004-51758, as shown in FIG. 1, the drum body 1 'whose both ends are supported by the bearing 2'. Filament feeder (3 ') is provided on one side of the drum body in the axial direction of the drum body to transfer the filament feeder to the left and right to apply the filament yarn impregnated with resin on the surface of the drum body (1') to a certain thickness After the drying, the drum body (1 ') put into the inner side is pulled out to complete the tube body.

종래의 필라멘트사는 다수개의 가닥이 필라멘트공급장치(3')로 집중되어 하나의 다발을 이룬 상태에서 수지에 함침된 후 드럼체(1')로 권취되는데 필라멘트공급장치와의 마찰접촉에 의해 쉽게 끊어진다. Conventional filament yarns are impregnated with resin in a state in which a plurality of strands are concentrated in the filament supply device (3 ') and wound into a drum body (1'), which is easily broken by frictional contact with the filament supply device. Lose.

끊어진 필라멘트사를 연결하기 위해서는 드럼체(1')를 정지시키고 단부를 수작업으로 연결해야 하는데, 끊어진 필라멘트사는 필라멘트공급장치(3')의 롤러에 감겨 선단을 찾기가 용이하지 않아 연결작업에 상당한 시간이 소요되는 문제점이 있었다.In order to connect the broken filament yarn, the drum body 1 'must be stopped and the end is manually connected. The broken filament yarn is wound on the roller of the filament supply device 3' and the tip is not easy to find. There was an issue that took place.

아울러, 상기 필라멘트사는 쉽게 끊어지므로 권취할 때의 장력을 크게 할 수 없고, 그로 인해 생산되는 관체의 강성을 증대시키는 데 한계가 있었다.In addition, since the filament yarn is easily broken, the tension at the time of winding cannot be increased, thereby increasing the rigidity of the produced tubular body.

또한, 필라멘트사가 함침된 후 드럼체(1')로 이동하는 경로상에 합성수지가 낙하하여 낭비되는 문제점이 있었다. 이는 다수개의 필라멘트사가 하나의 다발을 이루며 함침되기는 하나, 필라멘트사들 사이의 공간으로 인해 함침된 수지가 쉽게 낙하하기 때문이다.In addition, after the filament yarn is impregnated, there is a problem that synthetic resin falls on the path moving to the drum body 1 'and is wasted. This is because a plurality of filament yarns are impregnated in one bundle, but the impregnated resin easily falls due to the space between the filament yarns.

따라서, 본 발명은 상기한 바와 같은 종래 내산성 관체 제조방법이 가지는 문제점들을 개선하기 위해 창출된 것으로, 피권취물의 권취작업이 중단되는 것을 최소화하여 작업효율을 높일 수 있고 합성수지를 절감할 수 있으며 피권취물을 견고하게 권취하여 강성을 증대시킬 수 있는 내산성 관체 제조방법을 제공함에 그 목적이 있다.Therefore, the present invention was created to improve the problems with the conventional acid-resistant tube manufacturing method as described above, to minimize the interruption of the winding work of the wound to increase the work efficiency and to reduce the synthetic resin and wound It is an object of the present invention to provide a method for producing an acid resistant tube capable of increasing rigidity by winding water tightly.

상기한 바와 같은 목적을 달성하기 위하여 본 발명에 의한 내산성 관체 제조방법은, 합성수지와 경화제를 혼합하여 혼합수지를 제조하는 단계; 베이스 시트지를 제조하는 단계; 베이스 시트지 위에 복수개의 권취사를 접착하여 권취사 테이프를 제조하는 단계; 권취드럼의 외주면에 이형층을 형성하는 단계; 상기 권취사 테이프에 상기 혼합수지를 침적시킨 후 권취드럼(mandril) 외주면에 권취하는 단계; 권취드럼에 권취된 권취사 테이프의 혼합수지를 경화시키는 단계; 및 권취드럼의 외주면에서 경화된 권취사 테이프를 권취드럼으로부터 탈형시키는 단계;를 포함하 는 것을 특징으로 한다.In order to achieve the object as described above, the acid resistant tube manufacturing method according to the present invention comprises the steps of preparing a mixed resin by mixing a synthetic resin and a curing agent; Preparing a base sheet; Bonding a plurality of winding yarns onto a base sheet to produce a winding yarn tape; Forming a release layer on an outer circumferential surface of the winding drum; Depositing the mixed resin on the winding yarn tape and winding the outer surface of a winding drum (mandril); Curing the mixed resin of the winding yarn tape wound on the winding drum; And demolding the wound yarn tape cured on the outer circumferential surface of the winding drum from the winding drum.

바람직하게는, 상기 베이스 시트지는 유리섬유를 웹으로 직조하여 제조된다. Preferably, the base sheet paper is produced by weaving glass fibers into a web.

더욱 바람직하게는, 상기 권취사는 로빙사(roving)이다. More preferably, the winding yarn is a roving yarn.

바람직하게는, 상기 혼합수지를 제조하는 단계에서 경화를 촉진시키는 촉진제를 더 첨가하여 혼합한다.Preferably, in the step of preparing the mixed resin, an accelerator for promoting hardening is further added and mixed.

상기 혼합수지는, FRP수지 100중량부, 경화제 1~3중량부, 촉진제 0.5중량부를 포함하는 것이 바람직하다.It is preferable that the said mixed resin contains 100 weight part of FRP resins, 1-3 weight part of hardening | curing agents, and 0.5 weight part of accelerators.

또한, 본 발명에 따른 내산성 관체 제조용 권취사 테이프는, 베이스 시트지; 및 상기 베이스 시트지의 일측면에 접착제로 접착되는 복수개의 로빙사;를 포함한다.Moreover, the winding yarn tape for acid-resistant tube manufacture which concerns on this invention is a base sheet paper; And a plurality of roving yarns adhered to one side of the base sheet by an adhesive.

바람직하게는, 상기 베이스 시트지는 유리섬유를 웹으로 직조하여 제조된다.Preferably, the base sheet paper is produced by weaving glass fibers into a web.

이하, 첨부된 도면을 참조하여 본 발명에 따른 내산성 관체 제조방법의 바람직한 실시예를 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the acid-resistant tube manufacturing method according to the present invention.

도 2 내지 도 5를 참조하면, 본 발명의 일실시예에 따른 내산성 관체 제조방법은, 합성수지와 경화제를 혼합하여 혼합수지를 제조하는 단계(S1)와, 권취사 테이프(10)를 제조하는 단계(S2), 권취드럼의 외주면에 이형층을 형성하는 단계(S3), 상기 권취사 테이프(10)에 상기 혼합수지를 침적시킨 후 권취드럼(mandril) 외주면에 권취하는 단계(S4), 권취드럼에 권취된 권취사 테이프(10)의 혼합수지를 경화시키는 단계(S5), 및 권취드럼의 외주면에서 경화된 권취사 테이프(10)를 권취드럼으 로부터 탈형시키는 단계(S6)를 포함한다.2 to 5, the acid-resistant tube manufacturing method according to an embodiment of the present invention, the step of preparing a mixed resin by mixing a synthetic resin and a curing agent (S1), and manufacturing a winding tape 10 (S2), forming a release layer on the outer circumferential surface of the winding drum (S3), immersing the mixed resin on the winding yarn tape 10 and winding the outer circumferential surface of the winding drum (mandril) (S4), winding drum Hardening the mixed resin of the wound yarn tape 10 wound at (S5), and demolding the wound yarn tape 10 cured at the outer circumferential surface of the wound drum from the wound drum (S6).

혼합수지 제조단계(S1)에서는 FRP수지 100중량부, 경화제 1~3중량부, 및 촉진제 0.5중량부를 혼합하여 혼합수지를 제조한다.In the mixed resin manufacturing step (S1), 100 parts by weight of FRP resin, 1 to 3 parts by weight of hardener, and 0.5 parts by weight of accelerator are mixed to prepare a mixed resin.

상기 경화제는 FRP수지가 권취드럼에 권취된 이후에 경화되도록 하는 역할을 하는 것으로, MEKPO(메틸 에틸 케톤 퍼옥사이드)를 사용할 수 있다.The curing agent serves to cure after the FRP resin is wound on the winding drum, MEKPO (methyl ethyl ketone peroxide) can be used.

촉진제는 경화를 촉진시키는 역할을 하는 것으로, 코발트-나프탈렌(Co-Nap) 혼합물을 사용할 수 있다.Accelerators serve to promote curing, and cobalt-naphthalene (Co-Nap) mixtures can be used.

상기 권취사 테이프 제조단계(S2)는 베이스 시트지(11)를 제조하는 단계(S21)와, 베이스 시트지(11) 위에 복수개의 권취사(12)를 접착하여 권취사 테이프(10)를 제조하는 단계(S22)를 포함한다.The winding tape manufacturing step (S2) is a step of manufacturing a base sheet 11 (S21), and a step of adhering a plurality of winding yarns 12 on the base sheet 11 to produce a winding yarn tape 10 (S22).

권취사 테이프(10)는 베이스 시트지(11)에 권취사(12)가 접착되어 형성된다.The winding yarn tape 10 is formed by winding the winding yarn 12 to the base sheet paper 11.

상기 베이스 시트지(11)는 유리섬유를 웹으로 직조하여 제조된다. 도 3에 도시된 바와 같이, 상기 베이스 시트지(11)는 유리섬유 중 장섬유를 소재로 하여 직물로 짜여진다. 본 실시예에서 상기 권취사(12)는 로빙사(ROVING)이다. 로빙사는 실란(SILANE) 처리된 TYPE "E" 유리섬유(GLASS)로서 2200 TEX를 사용한다. The base sheet 11 is produced by weaving glass fibers into a web. As shown in Figure 3, the base sheet 11 is woven into a fabric made of a long fiber of glass fiber as a material. In this embodiment, the winding yarn 12 is a roving yarn (ROVING). Roving Inc. uses 2200 TEX as a silane-treated TYPE "E" glass fiber (GLASS).

상기 권취사 테이프(10)를 권취드럼(1)에 권취하기 전에 권취드럼(1)의 외주면에 이형지를 권취하여 이형층(2)을 형성한다.Before winding the winding yarn tape 10 to the winding drum 1, a release paper is wound around the outer circumferential surface of the winding drum 1 to form a release layer 2.

상기 이형층 형성단계(S3)는 권취드럼(1)의 외주면에 이형층(2)을 형성함으로써 탈형단계(S6)에서 권취드럼(1)으로부터 관체를 용이하게 분리시켜 탈형시킬 수 있게 한다.In the release layer forming step S3, the release layer 2 is formed on the outer circumferential surface of the winding drum 1 so that the tubular body can be easily separated from the winding drum 1 in the demolding step S6 to be demolded.

이형층(2)을 형성한 후, 합성수지에 권취사 테이프(10)를 침적시켜 권취사 테이프(10)에 합성수지가 묻은 상태로 권취드럼(1)에 권취된다.After the release layer 2 is formed, the winding yarn tape 10 is immersed in the synthetic resin and wound up on the winding drum 1 in a state in which the synthetic resin is on the winding yarn tape 10.

도 5에 도시된 바와 같이, 합성수지 저장조(4)에 합성수지액(5)을 소정의 높이로 구비하고, 권취사 테이프(10)를 합성수지 저장조(4)의 합성수지액에 침적시키면서 통과시킨다.As shown in FIG. 5, the synthetic resin solution 5 is provided at a predetermined height in the synthetic resin reservoir 4, and the winding yarn tape 10 is passed through the synthetic resin solution in the synthetic resin reservoir 4 while being immersed.

도 4에 도시된 바와 같이, 권취사 테이프(10)는 베이스 시트지(11)를 바탕지로 하여 로빙사가 접착되어 권취사(12)들 사이의 공간을 베이스 시트지(11)가 채우게 되므로 함침공정 후 권취를 위한 이동시에 합성수지가 쉽게 낙하하지 않게 되고 그로 인해 합성수지가 낭비되는 것을 방지할 수 있게 된다.As shown in FIG. 4, the winding yarn tape 10 is wound based on the base sheet 11 so that the roving yarn is adhered to fill the space between the winding yarns 12, so that the base sheet 11 is wound up after the impregnation process. When moving for the synthetic resin is not easy to fall and thereby prevent the waste of the synthetic resin.

권취사 테이프(10)를 합성수지액에 침적시킨 후, 겔(Gel)화된 합성수지가 도포된 권취사 테이프(10)를 권취드럼(1)의 외주면에 나선형(헬리컬식)으로 권취한다.After the winding yarn tape 10 is immersed in the synthetic resin solution, the winding yarn tape 10 coated with the gelated synthetic resin is wound spirally (helical) on the outer circumferential surface of the winding drum 1.

상기 권취단계(S4)에서는 합성수지 저장조(4)와 함께 권취사 테이프(10)가 권취드럼(1)의 축방향을 따라 이동하면서 권취드럼(1)의 외주면에 권취사 테이프(10)를 권취하게 된다. 권취하는 방법은 종래 공개특허 2004-0051758호 「대형관체의 제조장치」와 등록특허 제624714호 「필라멘트 와인딩 성형법에 의해 만들어진 역삼투막용 유리섬유강화프라스틱 압력용기」에 상세히 개시되어 있으므로 더 이상의 설명은 생략한다.In the winding step (S4), the winding yarn tape 10 along with the synthetic resin reservoir 4 moves along the axial direction of the winding drum 1 to wind the winding yarn tape 10 on the outer circumferential surface of the winding drum 1. do. The method of winding is disclosed in detail in Korean Patent Laid-Open Publication No. 2004-0051758, “Manufacturing apparatus for a large tube,” and Patent No. 624714, “Fiberglass-reinforced plastic pressure vessel for reverse osmosis membranes made by a filament winding molding method,” which is not further described. do.

관체(3)가 소정의 두께로 형성된 이후에는 권취공정을 정지하고 권취사 테이프(10)를 절단하여 경화시킨다.After the tubular body 3 is formed to a predetermined thickness, the winding process is stopped and the wound yarn tape 10 is cut and hardened.

경화단계(S5)는 상온의 공기중에서 소정시간 동안 진행하여 합성수지가 권취사 테이프(10)와 함께 건조되어 관체(3)가 형성되도록 한다.The curing step (S5) proceeds for a predetermined time in the air at room temperature so that the synthetic resin is dried together with the winding yarn tape (10) to form a tube (3).

경화된 관체(3)는 권취드럼(1)으로부터 탈형된다. 탈형단계(S6)에서는 이형단계(S3)에서 형성된 이형층에 의해 권취드럼(1)으로부터 관체를 용이하게 탈형시킬 수 있게 된다.The hardened tube 3 is demolded from the winding drum 1. In the demolding step (S6) it is possible to easily demold the tubular body from the winding drum (1) by the release layer formed in the releasing step (S3).

즉, 관체에 권취드럼(1)의 축방향으로 힘을 가하게 되면 이형층(2)에 의해 권취드럼(1)으로부터 관체(3)가 미끄러지면서 쉽게 탈형된다.That is, when a force is applied to the tube in the axial direction of the winding drum 1, the tube 3 slides easily from the winding drum 1 by the release layer 2 and is easily demolded.

이와 같이 제조된 관체는 양단의 개방부를 막아 내산성 화학약품을 저장하는 탱크로 제조될 수도 있다. The tubular body thus prepared may be manufactured as a tank for storing acid resistant chemicals by blocking the openings at both ends.

이상에서 설명한 바와 같이 본 발명에 따른 내산성 관체 제조방법에 의하면, 권취사 테이프가 쉽게 단락되지 않으므로 단락에 의해 권취작업이 중단되는 것을 최소화하여 작업효율을 높일 수 있고, 합성수지가 낙하하여 낭비되는 것을 방지함으로써 합성수지를 절감할 수 있으며, 권취사 테이프를 권취드럼에 견고하게 권취하여 관체의 강성을 증대시킬 수 있는 효과가 있다.As described above, according to the acid-resistant tube manufacturing method according to the present invention, since the winding yarn tape is not easily shorted, minimizing the interruption of the winding work due to the short circuit can increase the work efficiency, and prevent the synthetic resin from falling and wasting. By doing so, the synthetic resin can be reduced, and the winding yarn tape is firmly wound on the winding drum, thereby increasing the rigidity of the tube.

Claims (7)

합성수지와 경화제를 혼합하여 혼합수지를 제조하는 단계;Preparing a mixed resin by mixing a synthetic resin and a curing agent; 유리섬유를 웹으로 직조하여 베이스 시트지를 제조하는 단계;Weaving glass fibers into a web to produce base sheet paper; 상기 베이스 시트지 위에 복수개의 권취사를 접착하여 권취사 테이프를 제조하는 단계;Preparing a winding yarn tape by adhering a plurality of winding yarns on the base sheet; 권취드럼의 외주면에 이형층을 형성하는 단계;Forming a release layer on an outer circumferential surface of the winding drum; 상기 권취사 테이프에 상기 혼합수지를 침적시킨 후 권취드럼(mandril) 외주면에 권취하는 단계;Depositing the mixed resin on the winding yarn tape and winding the outer surface of a winding drum (mandril); 권취드럼에 권취된 권취사 테이프의 혼합수지를 경화시키는 단계; 및Curing the mixed resin of the winding yarn tape wound on the winding drum; And 권취드럼의 외주면에서 경화된 권취사 테이프를 권취드럼으로부터 탈형시키는 단계;를 포함하는 내산성 관체 제조방법.And demolding the wound yarn tape cured on the outer circumferential surface of the winding drum from the winding drum. 삭제delete 제1항에 있어서, 상기 권취사는,The method of claim 1, wherein the winding yarn, 로빙사(roving)인 것을 특징으로 하는 내산성 관체 제조방법.A method for producing an acid resistant tube, characterized in that the roving yarn (roving). 제1항에 있어서,The method of claim 1, 상기 혼합수지를 제조하는 단계에서 경화를 촉진시키는 촉진제를 더 첨가하여 혼합하는 것을 특징으로 하는 내산성 관체 제조방법.Acid-resistant tube manufacturing method, characterized in that for mixing by further adding an accelerator for promoting hardening in the step of preparing the mixed resin. 제4항에 있어서, 상기 혼합수지는,The method of claim 4, wherein the mixed resin, FRP수지 100중량부, 경화제 1~3중량부, 촉진제 0.5중량부를 포함하는 것을 특징으로 하는 내산성 관체 제조방법.An acid resistant tube manufacturing method comprising 100 parts by weight of FRP resin, 1 to 3 parts by weight of hardener, and 0.5 parts by weight of accelerator. 내산성 관체의 제조를 위해 합성수지가 함침되고 권취드럼에 권취되는 권취사 테이프에 있어서,In the winding yarn tape impregnated with a synthetic resin and wound on a winding drum for producing an acid resistant tube, 유리섬유를 웹으로 직조하여 제조된 베이스 시트지; 및A base sheet made by weaving glass fibers into a web; And 상기 베이스 시트지의 일측면에 접착제로 접착되는 복수개의 로빙사;를 포함하는 내산성 관체 제조용 권취사 테이프. Winding yarn tape for producing an acid-resistant tube comprising a; a plurality of roving yarn bonded to one side of the base sheet with an adhesive. 삭제delete
KR1020060109294A 2006-11-07 2006-11-07 Method for mamufacturing an acidophilic pipe and a winding tape therefor KR100791549B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100937892B1 (en) 2009-09-04 2010-02-10 (주)엔비이 Apparatus for manufacturing of large size pipe
KR101102299B1 (en) * 2009-08-31 2012-01-03 (주) 삼정디씨피 glass fiber covered pipe

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010092456A (en) * 1998-12-30 2001-10-25 휴스톤 로버트 엘 Process and apparatus for filament winding composite workpieces

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010092456A (en) * 1998-12-30 2001-10-25 휴스톤 로버트 엘 Process and apparatus for filament winding composite workpieces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101102299B1 (en) * 2009-08-31 2012-01-03 (주) 삼정디씨피 glass fiber covered pipe
KR100937892B1 (en) 2009-09-04 2010-02-10 (주)엔비이 Apparatus for manufacturing of large size pipe

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