KR20020009385A - a manufacturing mothod for flexible joint - Google Patents

a manufacturing mothod for flexible joint Download PDF

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Publication number
KR20020009385A
KR20020009385A KR1020010002677A KR20010002677A KR20020009385A KR 20020009385 A KR20020009385 A KR 20020009385A KR 1020010002677 A KR1020010002677 A KR 1020010002677A KR 20010002677 A KR20010002677 A KR 20010002677A KR 20020009385 A KR20020009385 A KR 20020009385A
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KR
South Korea
Prior art keywords
teflon
flange
pipe
joint
teflon pipe
Prior art date
Application number
KR1020010002677A
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Korean (ko)
Inventor
김은호
Original Assignee
김은호
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Priority to KR1020010002677A priority Critical patent/KR20020009385A/en
Publication of KR20020009385A publication Critical patent/KR20020009385A/en

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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
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B29C57/005—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels the end of an internal lining
    • 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
    • B29D23/003—Pipe joints, e.g. straight joints

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints Allowing Movement (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)

Abstract

PURPOSE: A method for manufacturing an expansion joint is provided to minimize the corrosion of an expansion joint by forming a Teflon layer of high corrosion resistance on the inner face of the expansion joint. CONSTITUTION: A method for manufacturing an expansion joint comprises the steps of processing a Teflon pipe by the diameter the same as that of a joint body(A), forming a flange corresponding to the flange of the joint body by pressurizing both ends of the Teflon pipe using a bulged die after inserting the Teflon pipe into the joint body(B), thermally treating the Teflon pipe at a specific temperature in an oven after fixing closing members having air injecting holes with connecting flanges to both ends of the Teflon pipe(C), closely adhering the Teflon pipe to the inner face of the joint body by injecting air through the air injecting holes(D), forming a Teflon layer on the inner face of the joint body by quenching the Teflon pipe(E), and testing and washing the expansion joint by removing the closing members(F).

Description

신축이음관의 제조방법{a manufacturing mothod for flexible joint}Manufacturing method of flexible joint tube {a manufacturing mothod for flexible joint}

본 발명은 고무등과 같은 합성수지재로 제조되는 신축이음관의 제조방법에 관한 것으로, 특히 내주면으로 내식성이 높은 테프론층을 형성시켜 신축이음관의 부식을 최소화할 수 있도록 하는 신축이음관의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a expansion joint made of a synthetic resin material such as rubber, in particular a method of manufacturing a expansion joint to minimize the corrosion of the expansion joint by forming a high corrosion resistance Teflon layer on the inner peripheral surface It is about.

일반적으로 신축이음관은 금속재와 비금속재로 제작되는 것이 있는 데, 상기 금속재의 신축이음관의 경우 고압에는 강하지만 유연진동에는 취약하여 장시간 사용시 그 진동에 따른 크랙이나 파손되는 문제점이 발생함에 따라 자주 교체해 주어야 하는 번거러운 작업공정 및 그로 인한 유지보수비가 상당히 상승되는 문제점이 발생하였다.In general, expansion joints are made of metal and non-metallic materials. In case of expansion joints of metals, they are strong at high pressure but vulnerable to flexible vibration. The cumbersome work process and the maintenance cost that resulted in the replacement had to be raised considerably.

이러한 문제점을 해소하고자 종래에도 유연진동에 비교적 강한 금속재의 신축이음관이 생산되어 사용되고 있으나 그 재질의 특성상 그리 만족하지 못할 수준에 못미쳤다.In order to solve such a problem, a conventional expansion joint tube made of metal material, which is relatively strong to flexible vibration, has been produced and used, but it has not been satisfied with the characteristics of the material.

상기와 같은 문제점을 해소하고자 종래에도 도 8에 도시된 바와 같은 비금속재인, 즉 고무등과 같은 합성수지재의 신축이음관이 제조되어 사용되고 있으며, 그 구성은 양측으로 플랜지부(102)를, 그 중간으로 광폭부(104)가 형성되도록 고무등과 같은 합성수지재로 성형되는 이음관본체(100)와, 상기 플랜지부(102)로 연결수단인 다수의 체결공(112)이 형성된 금속재의 체결플랜지(110)가 결합되도록 구성된다.In order to solve the above problems, conventional expansion joints of synthetic resin materials such as rubber, that is, non-metallic materials as shown in FIG. 8 are manufactured and used, and the configuration thereof is the flange portion 102 at both sides, and in the middle thereof. Fastening flange 110 of a metal material formed with a joint pipe body 100 formed of a synthetic resin material such as rubber so that the wide part 104 is formed, and a plurality of fastening holes 112 connected to the flange part 102. ) Are configured to be combined.

이와같이 구성된 종래의 신축이음관(1)에 있어서는 전술한 바와같이 금속재의 신축이음관에서 갖는 고압에서도 크랙이나 파속됨이 없으며 유연진동에도 충분한 대응력을 갖는 장점을 가지고 있었다.In the conventional expansion joint 1 configured as described above, as described above, there is no crack or ripple even under high pressure of the expansion joint of metal material, and it has an advantage of having sufficient coping force against flexible vibration.

그러나, 종래 상기와 같이 고무등과 같은 합성수지재의 신축이음관(1)에 있어서는 그 내부로 유속되는 물질에 의해, 특히 황산등이 포함되어 있는 화학물질등을 이송하기 위해 설치된 부분에서는 그 물질의 특성상 상기 고무등과 같은 합성수지재로 성형된 이음관본체(100)가 단시간 내에 부식되는 문제점이 발생하게 되어 이도 잦은 교체공정을 거쳐야 하는 번거러운 문제점 뿐만 아니라 그에 따른 많은 유지보수비가 소요되는 문제점을 해소하지 못하였다.However, in the conventional expansion joint pipe 1 of a synthetic resin material such as rubber or the like, especially in a portion provided for transporting chemical substances, such as sulfuric acid, etc., by a material flowing therein, The joint pipe body 100 formed of a synthetic resin material such as the rubber is a problem that the corrosion occurs in a short time, so that it is not a cumbersome problem that must go through frequent replacement process, but also does not solve the problem that requires a lot of maintenance costs It was.

이에, 본 발명은 상기와 같은 종래의 제반 문제점을 해소하고자 안출된 것으로, 그 목적은 내주면으로 내식성이 높은 테프론층을 형성시켜 신축이음관의 부식을 최소화할 수 있도록 한 신축이음관의 제조방법을 제공하는 데 있다.Accordingly, the present invention has been made to solve the conventional problems as described above, the object is to form a teflon layer having a high corrosion resistance to the inner peripheral surface to minimize the corrosion of the expansion joint pipe manufacturing method To provide.

상기와 같은 목적을 달성하기 위한 본 발명은 양측으로 플랜지부를, 그 중간으로 광폭부가 형성되도록 고무등과 같은 합성수지재로 성형되는 이음관본체와, 상기 플랜지부로 연결수단인 다수의 체결공이 형성된 금속재의 체결플랜지가 결합되도록 구성된 신축이음관에 있어서, 일반적인 테프론파이프를 절단하여 그 표면을공지의 방법에 의해 가공하여 그 외경을 상기 이음관본체의 내경과 같은 직경으로 갖도록 가공하는 테프론파이프 가공공정과; 상기 테프론파이프 가공공정 후 그 가공된 테프론파이프를 상기 이음관본체 내로 삽입하여 외측에서 열풍을 공급한 다음 통상의 벌징가공된 금형으로 상기 테프론파이프 양단을 가압하여 상기 이음관본체 플랜지와 대응되는 플랜지를 형성하는 플랜지 가공공정과; 상기 플랜지 가공공정 후 그 양단으로 일측으로 공기주입구가 설치된 밀폐부재를 상기 체결플랜지와 밀폐되도록 고정한 다음 오븐에 넣어 일정온도를 유지하여 열처리하는 열처리공정과; 상기 열처리공정 후 일측 밀폐부재에 형성된 공기주입구를 통하여 공기를 주입하여 상기 이음관본체의 내주면으로 테프론파이프를 밀착시키는 테프론파이프 밀착공정과; 상기 테프론파이프 밀착공정 후 상기 오븐에서 인출하여 급냉시켜 상기 이음관본체의 내주면으로 테프론층을 형성하는 테프론층 형성공정과; 상기 테프론층 형성공정 후 양단으로 체결된 밀폐부재를 제거하여 검사 및 세척하는 마무리공정으로 이루어진 것을 특징으로 한다.The present invention for achieving the above object is a joint pipe body formed of a synthetic resin material such as rubber to form a flange portion on both sides, a wide portion in the middle thereof, and a plurality of fastening holes which are connected to the flange portion is formed In a expansion joint configured to join a fastening flange of a metal material, a Teflon pipe processing step of cutting a general Teflon pipe and processing the surface thereof by a known method to process the outer diameter to have the same diameter as the inner diameter of the joint pipe body. and; After the teflon pipe processing process, the processed teflon pipe is inserted into the joint pipe main body to supply hot air from the outside, and then presses both ends of the teflon pipe with a normal bulging die to press the flange corresponding to the joint pipe main flange. Flange processing process to form; A heat treatment step of fixing the sealing member in which an air inlet is installed at one end thereof after the flange processing step so as to be sealed with the fastening flange, and then putting it in an oven to maintain a predetermined temperature for heat treatment; A teflon pipe adhesion step of injecting air through an air inlet formed in one sealing member after the heat treatment step and intimately connecting the teflon pipe to the inner circumferential surface of the joint pipe body; A teflon layer forming step of forming a teflon layer on the inner circumferential surface of the joint pipe main body by quenching the withdrawal from the oven after the teflon pipe adhesion step; After the teflon layer forming process is characterized in that the finishing process of removing the sealing member fastened to both ends and inspecting and washing.

도 1은 본 발명의 공정도를 나타낸 블록도.1 is a block diagram showing a process diagram of the present invention.

도 2는 도 1에 따른 테프론파이프 가공공정를 나타낸 요부 단면도.2 is a sectional view showing the principal parts of a Teflon pipe processing process according to FIG. 1;

도 3은 도 1에 따른 플랜지 가공공정를 나타낸 요부 단면도.3 is a sectional view showing the principal parts of the flange machining process according to FIG. 1;

도 4는 도 1에 따른 열처리공정을 나타낸 요부 단면도.4 is a sectional view showing the principal parts of the heat treatment process according to FIG. 1;

도 5는 도 1에 따른 테프론파이프 밀착공정을 나타낸 요부 단면도.5 is a sectional view showing the principal parts of the Teflon pipe adhesion process according to FIG. 1.

도 6은 도 1에 따른 테프론층 형성공정을 나타낸 요부 단면도.6 is a sectional view showing the principal parts of the Teflon layer forming process according to FIG. 1.

도 7은 도 1에 따른 마무리공정을 나타낸 나타낸 요부 단면도.7 is a sectional view showing the principal parts of a finishing process according to FIG. 1;

도 8은 종래 신축이음관을 나타낸 단면도.8 is a cross-sectional view showing a conventional expansion joint.

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

10 : 테프론파이프10: teflon pipe

12 : 플랜지12: flange

20 : 테프론층20: Teflon layer

50 : 금형50: Mold

60 : 밀폐부재60: sealing member

62 : 공기주입구62: air inlet

70 : 오븐70: oven

100 : 이음관본체100: joint pipe body

102 : 플랜지부 104 : 광폭부102: flange portion 104: wide portion

110 : 체결플랜지110: tightening flange

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참고하여 좀더 상세하게 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 공정도를 나타낸 블록도로서, 도 2는 도 1에 따른 테프론파이프 가공공정를 나타낸 요부 단면도이다.1 is a block diagram showing a process diagram of the present invention, Figure 2 is a cross-sectional view of the main portion showing a teflon pipe processing process according to FIG.

도시된 바와 같이 양측으로 플랜지부(102)를, 그 중간으로 광폭부(104)가 형성되도록 고무등과 같은 합성수지재로 성형되는 이음관본체(100)와, 상기플랜지부(102)로 연결수단인 다수의 체결공(112)이 형성된 금속재의 체결플랜지(110)가 결합되도록 구성된 신축이음관(1)에 있어,As shown, the joint portion body 100 is formed of a synthetic resin material such as rubber so that the flange portion 102 is formed at both sides, and the wide portion 104 is formed in the middle thereof, and the flange portion 102 is connected to the connecting means. In the expansion joint pipe (1) configured to be coupled to the fastening flange 110 of the metal material formed a plurality of fastening holes 112,

본 발명은 공지의 방법에 의해 압출성형된 일반적인 테프론파이프(10)를 후술하는 플랜지 가공고정에 의해 플랜지가 형성되는 길이까지 절단하여 그 표면을 통상의 연마장치등과 같은 공지의 방법에 의해 가공하여 그 외경(W)을 상기 이음관본체(100)의 내경(w)과 같은 직경을 갖도록 가공하는 테프론파이프 가공공정(A)을 나타낸 것이다.The present invention is to cut the general Teflon pipe (10) extruded by a known method to the length of the flange is formed by the flange processing fixing described later, and the surface is processed by a known method such as a conventional polishing machine It shows a Teflon pipe processing step (A) for processing the outer diameter (W) to have the same diameter as the inner diameter (w) of the joint pipe body (100).

상기와 같이 테프론파이프 가공공정(A)을 행하는 것은 상기 이음관본체(100)에 삽입시 원활하게 삽입되도록 함과 아울러 후술하는 테프론파이프 밀착공정시 상기 이음관본체(100)의 내주면으로 상기 테프론파이프(10)의 외주면이 긴밀하게 밀착되도록 하기 위함이다.Performing the Teflon pipe processing step (A) as described above to ensure smooth insertion when inserted into the joint pipe body 100, and also the Teflon pipe to the inner peripheral surface of the joint pipe body 100 during the Teflon pipe contact step described later This is to make the outer circumferential surface of (10) closely contact.

도 3은 도 1에 따른 플랜지 가공공정를 나타낸 요부 단면도이다.3 is a sectional view showing the principal parts of the flange machining process according to FIG. 1.

도시된 바와 같이 상기한 테프론파이프 가공공정(A)을 거친 테프론파이프(10)를 상기 이음관본체(100) 내로 삽입하여 공지의 가열수단에 의해 외측에서 열풍을 공급한 다음 통상의 벌징가공된 금형(50)으로 상기 테트론파이프(10) 양단을 일반적인 방식으로 가압하여 상기 이음관본체(100)의 플랜지부(102)와 대응되는 플랜지(12)를 형성하는 플랜지 가공공정(B)을 나타낸 것이다.As shown, the teflon pipe 10, which has undergone the above-mentioned teflon pipe processing step (A), is inserted into the joint pipe main body 100 to supply hot air from the outside by a known heating means, and then a conventional bulging process mold. (50) shows a flange processing step (B) for pressing the both ends of the Tetron pipe 10 in a general manner to form a flange 12 corresponding to the flange portion 102 of the joint pipe body 100. .

상기와 같이 프랜지(12)를 형성함에 따라 상기 신축이음관과 연결되는 연결관의 플랜지부로 긴밀성을 유지하면서 체결할 수 있는 조건을 갖는 것이다.As the flange 12 is formed as described above has a condition that can be fastened while maintaining the tightness to the flange portion of the connection pipe connected to the expansion joint pipe.

도 4는 도 1에 따른 열처리공정을 나타낸 요부 단면도이다.4 is a cross-sectional view illustrating main parts of the heat treatment process of FIG. 1.

도시된 바와 같이 상기한 플랜지 가공공정(B) 후 그 양단으로 일측으로 니플(nipple)등과 같은 공기주입구(62)가 설치된 통상의 밀폐부재(60)를 상기한 체결플랜지(110)와 밀폐되도록 일반적인 체결방식에 의해 고정한 다음 공지의 가열수단인 일반적인 오븐(70)에 인입시켜 일정온도를 유지하여 상기 이음관본체(100)로 내장된 테프론파이프(10)가 유연성을 갖도록 열처리하는 열처리공정(C)을 나타낸 것이다.As shown in the drawing, a general sealing member 60 in which an air inlet 62 such as a nipple is installed at one end of the flange machining process (B) is sealed to the fastening flange 110. The heat treatment step (C) is fixed by the fastening method and introduced into a general oven 70, which is a known heating means, to maintain a constant temperature and heat-treat the Teflon pipe 10 built into the joint pipe body 100 to have flexibility. It is shown.

도 5는 도 1에 따른 테프론파이프 밀착공정을 나타낸 요부 단면도이다.5 is a sectional view showing the principal parts of the Teflon pipe adhesion process according to FIG. 1.

도시된 바와 같이 상기 열처리공정(C) 후 일측 밀폐부재(60)에 형성된 공기주입구(62)를 통하여 공기를 주입하여 상기 이음관본체(100)의 내주면으로 유연성을 갖도록 가열된 테프론파이프(10)가 팽창되면서 상기 이음관본체(100)의 내주면으로 밀착되어 지는 테프론파이프 밀착공정(D)을 나타낸 것이다.After the heat treatment step (C) as shown in the air through the air inlet 62 formed in one side sealing member 60 is heated Teflon pipe 10 to have flexibility to the inner peripheral surface of the joint pipe body 100 The Teflon pipe adhesion process (D) is in close contact with the inner circumferential surface of the joint pipe body 100 while being expanded.

상기에서, 테프론파이프 밀착공정(D)시 상기 테프론파이프(10)의 표면은 전술한 테프론파이프 가공공정(A)을 통하여 가공된 상태이므로, 그 외주면이 상기 이음관본체(100)의 내주면으로 긴밀하게 밀착되어질 수 있는 조건을 갖게 되는 것이다.In the above, since the surface of the Teflon pipe 10 during the Teflon pipe adhesion process (D) is processed through the above-described Teflon pipe processing process (A), its outer peripheral surface is intimately connected to the inner circumferential surface of the joint pipe main body 100. It will have a condition that can be closely adhered to.

도 6은 도 1에 따른 테프론층 형성공정을 나타낸 요부 단면도이다.6 is a cross-sectional view illustrating main parts of the Teflon layer forming process of FIG. 1.

도시된 바와 같이 상기 테프론파이프 밀착공정(D) 후 상기 오븐에서 인출하여, 이때 공기주입구(62)를 통하여 공급된 공기는 배기되지 않은 상태로 인출하여 공냉이나 수냉등과 같은 공지의 방법에 의해 급냉시켜 상기 이음관본체(100)의 내주면으로 테프론층(20)을 형성하는 테프론층 형성공정(E)을 나타낸 것이다.As shown in the drawing, the Teflon pipe contacting step (D) is withdrawn from the oven. At this time, the air supplied through the air inlet 62 is drawn out without being exhausted and quenched by a known method such as air cooling or water cooling. The Teflon layer forming step (E) of forming the Teflon layer 20 on the inner circumferential surface of the joint pipe body 100 is shown.

다시말해서, 상기 오븐에서 인출하여 급냉시킴으로서 내부로 주입된 공기에 의해 팽창되어 상기 이음관본체(100)의 내주면으로 밀착된 유연성을 갖는 테프로파이프(10)가 경화되면서 테프론층(20)이 형성되어 지는 것이다.In other words, the Teflon layer 20 is formed while the Teflon pipe 10 having the flexibility to be inflated by the air injected into the oven by being quenched and drawn to the inner circumferential surface of the joint tube body 100 is cured. It is done.

도 7은 도 1에 따른 마무리공정을 나타낸 나타낸 요부 단면도이다.7 is a sectional view showing the principal parts of the finishing process according to FIG. 1.

도시된 바와 같이 상기 테프론층 형성공정(E) 후 양단으로 체결된 밀폐부재(60)를 제거하여 상기 테프론층(20)이 상기한 이음관본체(100)의 내측면으로 제대로 형성되었는지 일반적인 방법에 의해 검사 및 세척하는 마무리공정(F)을 나타낸 것이다.As shown, after removing the sealing member 60 fastened to both ends after the Teflon layer forming process (E), the Teflon layer 20 is properly formed on the inner surface of the joint pipe body 100 in the general method. It shows the finishing process (F) to inspect and wash by.

한편, 상기와 같이 제조가 완료된 신축이음관의 운반은 상기 체결플랜지에 합판등을 일반적인 밴드등을 사용하여 내부로 이물질 등이 유입되지 않도록 차단시킨 후 운반할 수 있도록 하는 것이 바람직하다.On the other hand, the transport of the expansion joint is completed as described above it is preferable to block the plywood, etc. in the fastening flange using a common band, such that foreign matters such as to prevent the inflow into the inside to be transported.

따라서, 전술한 바와 같은 공정을 거쳐 상기한 이음관본체(100)의 내주면으로 테프론층(20)이 성형되어 짐에 따라 그 내부로 황산등과 같은 화합물질이 이송되더라도 신축이음관의 이음관본체가 부식되는 것을 최소화할 수 있는 것이다.Therefore, as the Teflon layer 20 is molded into the inner circumferential surface of the fitting pipe body 100 through the above-described process, even if the compound material such as sulfuric acid is transferred into the fitting pipe body of the expansion pipe, To minimize corrosion.

상술한 바와 같이 본 발명은 내주면으로 내식성이 높은 테프론층을 형성시켜 신축이음관의 부식을 최소화할 수 있도록 함에 따라 부식으로 인한 신축이음관의 잦은 교체를 최소화함으로서, 교체작업에 따른 번거러운 작업공정을 해소할 수 있을 뿐만 아니라 그로 인한 유지보수비도 현저하게 절감할 수 있는 효과를 가지는것이다.As described above, the present invention forms a high corrosion resistant Teflon layer on the inner circumferential surface to minimize the corrosion of the expansion joint, thereby minimizing the frequent replacement of the expansion joint due to the corrosion, and the cumbersome work process according to the replacement operation. Not only can it be eliminated, but the maintenance cost is significantly reduced.

Claims (1)

양측으로 플랜지부를, 그 중간으로 광폭부가 형성되도록 고무등과 같은 합성수지재로 성형되는 이음관본체와, 상기 플랜지부로 연결수단인 다수의 체결공이 형성된 금속재의 체결플랜지가 결합되도록 구성된 신축이음관에 있어서, 일반적인 테프론파이프(10)를 절단하여 그 표면을 공지의 방법에 의해 가공하여 그 외경을 상기 이음관본체(100)의 내경과 같은 직경으로 갖도록 가공하는 테프론파이프 가공공정(A)과; 상기 테프론파이프 가공공정(A) 후 그 가공된 테프론파이프(10)를 상기 이음관본체(10) 내로 삽입하여 외측에서 열풍을 공급한 다음 통상의 벌징가공된 금형(50)으로 상기 테프론파이프(10) 양단을 가압하여 상기 이음관본체(100) 플랜지(102)와 대응되는 플랜지(12)를 형성하는 플랜지 가공공정(B)과; 상기 플랜지 가공공정(B) 후 그 양단으로 일측으로 공기주입구(62)가 설치된 밀폐부재(60)를 상기 체결플랜지(110)와 밀폐되도록 고정한 다음 오븐(70)에 넣어 일정온도를 유지하여 열처리하는 열처리공정(C)과; 상기 열처리공정(C) 후 일측 밀폐부재(60)에 형성된 공기주입구(62)를 통하여 공기를 주입하여 상기 이음관본체(100)의 내주면으로 테프론파이프(10)를 밀착시키는 테프론파이프 밀착공정(D)과; 상기 테프론파이프 밀착공정(D) 후 상기 오븐(70)에서 인출하여 급냉시켜 상기 이음관본체(100)의 내주면으로 테프론층(20)을 형성하는 테프론층 형성공정(E)과; 상기 테프론층 형성공정(E) 후 양단으로 체결된 밀폐부재(60)를 제거하여 검사 및 세척하는 마무리공정(F)으로 이루어진 것을 특징으로 하는 신축이음관의 제조방법.Expansion joints configured to join a joint pipe body formed of a synthetic resin material such as rubber to form a flange portion at both sides and a wide portion at the middle thereof, and a metal flange having a plurality of fastening holes formed as connecting means by the flange portion. The Teflon pipe processing step (A) which cuts the general Teflon pipe 10 and processes the surface by a well-known method, and processes the outer diameter so that it may have the same diameter as the inner diameter of the said joint pipe body 100; After the teflon pipe processing step (A), the processed teflon pipe 10 is inserted into the joint pipe main body 10 to supply hot air from the outside, and then the teflon pipe 10 with a normal bulging processed mold 50. A flange processing step (B) for pressing the both ends to form a flange (12) corresponding to the flange body (102) of the joint pipe body (100); After the flange processing step (B) to fix the sealing member 60, the air inlet 62 is installed to one side at both ends thereof to be sealed with the fastening flange 110 and then put in the oven 70 to maintain a constant temperature to heat treatment Heat treatment step (C); After the heat treatment step (C) by injecting air through the air inlet (62) formed in the one side sealing member 60, the Teflon pipe adhesion step of closely contacting the Teflon pipe (10) to the inner circumferential surface of the joint pipe body (100) )and; A Teflon layer forming step (E) of forming a Teflon layer 20 on the inner circumferential surface of the joint pipe body 100 by quenching after drawing out from the oven 70 after the Teflon pipe adhesion step (D); After the Teflon layer forming step (E), the method of manufacturing a flexible joint characterized in that it comprises a finishing step (F) of removing and closing the sealing member 60 fastened to both ends (F).
KR1020010002677A 2001-01-17 2001-01-17 a manufacturing mothod for flexible joint KR20020009385A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101459393B1 (en) * 2014-05-29 2014-11-07 (주)에스코알티에스 Manufacturing equipment of continuous vulcanization type integral mono cell and manufacturing method of integral mono cell using the same
KR101591282B1 (en) * 2014-09-23 2016-02-03 주식회사 우경테크 Large rubber extensible tube manufacturing equipment

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Publication number Priority date Publication date Assignee Title
JPS62167027A (en) * 1986-01-17 1987-07-23 Sekisui Chem Co Ltd Lining of flanged tube
JPS62279922A (en) * 1986-05-29 1987-12-04 Sekisui Chem Co Ltd Method of lining flanged pipe and lining equipment to be used for that
JPH0634083A (en) * 1992-07-15 1994-02-08 Nippon Valqua Ind Ltd Fluorocarbon resin lining rubber tube
JPH07304098A (en) * 1994-05-12 1995-11-21 Mitsubishi Plastics Ind Ltd Lining method for metallic conduit having branch pipe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62167027A (en) * 1986-01-17 1987-07-23 Sekisui Chem Co Ltd Lining of flanged tube
JPS62279922A (en) * 1986-05-29 1987-12-04 Sekisui Chem Co Ltd Method of lining flanged pipe and lining equipment to be used for that
JPH0634083A (en) * 1992-07-15 1994-02-08 Nippon Valqua Ind Ltd Fluorocarbon resin lining rubber tube
JPH07304098A (en) * 1994-05-12 1995-11-21 Mitsubishi Plastics Ind Ltd Lining method for metallic conduit having branch pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101459393B1 (en) * 2014-05-29 2014-11-07 (주)에스코알티에스 Manufacturing equipment of continuous vulcanization type integral mono cell and manufacturing method of integral mono cell using the same
KR101591282B1 (en) * 2014-09-23 2016-02-03 주식회사 우경테크 Large rubber extensible tube manufacturing equipment

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