KR20210014841A - Manufacturing method of internal smooth steel pipe with iron wire inserted projections - Google Patents

Manufacturing method of internal smooth steel pipe with iron wire inserted projections Download PDF

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Publication number
KR20210014841A
KR20210014841A KR1020190092776A KR20190092776A KR20210014841A KR 20210014841 A KR20210014841 A KR 20210014841A KR 1020190092776 A KR1020190092776 A KR 1020190092776A KR 20190092776 A KR20190092776 A KR 20190092776A KR 20210014841 A KR20210014841 A KR 20210014841A
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South Korea
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steel pipe
iron core
protrusion
smooth
present
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KR1020190092776A
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Korean (ko)
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김덕기
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주식회사 태영피앤엑스
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Priority to KR1020190092776A priority Critical patent/KR20210014841A/en
Publication of KR20210014841A publication Critical patent/KR20210014841A/en
Priority to KR1020210094135A priority patent/KR20210093212A/en

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    • 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
    • F16L9/02—Rigid pipes of metal
    • F16L9/04—Reinforced pipes
    • F16L9/042—Reinforced pipes the reinforcement comprising one or more layers of a helically wound cord, wire or strip
    • F16L9/045—Reinforced pipes the reinforcement comprising one or more layers of a helically wound cord, wire or strip using profiled strips
    • 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
    • F16L9/006—Rigid pipes specially profiled

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The present invention comprises: a smooth support unit formed in a pipe body; a corrugation unit; and a plurality of protrusion units integrated with an iron core. The iron core is inserted into the protrusion unit formed outside the steel pipe to significantly increase the strength of the steel pipe to prevent damage to the steel pipe from external pressure, and an inner diameter unit of the steel pipe is smoothed to allow fluid to smoothly flow inside the steel pipe. The inner smooth steel pipe with a protrusion unit where the iron core is inserted prevents pooling of rainwater and waste water to remove decomposition and odor and prevents corrosion of the steel pipe caused by the rainwater, the waste water, residential water, or industrial water to increase life of the steel pipe.

Description

돌부가 형성된 내부 평활 강관 및 제조방법{Manufacturing method of internal smooth steel pipe with iron wire inserted projections}Manufacturing method of internal smooth steel pipe with iron wire inserted projections}

본 발명은 철심이 삽입된 돌부가 형성된 내부 평활 강관 및 제조방법에 관한 것으로서, 강관 몸체에 철심이 삽입된 나선상의 돌부를 형성하여 압착으로 인한 강관의 외압강도를 증대시키고 그 내경부는 평탄하게 만들어 유체의 흐름을 안정되도록 하는 것이다.The present invention relates to an internal smooth steel pipe in which a protrusion into which an iron core is inserted is formed, and a manufacturing method, wherein the external pressure strength of the steel pipe due to compression is increased by forming a helical protrusion in which the iron core is inserted in the steel pipe body, and the inner diameter is made flat. It is to stabilize the flow of fluid.

일반적으로 도로 항만 등의 우수, 하수관으로 콘크리트 재의 흄관을 주로 사용하였으나 이는 자체의 중량과 부피의 증가로 운반 및 취급이 불편하고 시공시 중장비 투입이 요구되는 등 공사 비용 및 공사 기간의 증가로 인해, 최근에는 용융 아연도금강판을 이용하여 경계부분을 락심(lock seam)연결하고 관의 몸체에 파형의 주름이 형성된 파형강관이 사용되는데, 이러한, 파형강관은 시공성이 우수하고 경량이어서 운반 및 취급이 용이하고, 공사 비용 및 공사 기간을 줄일 수 있어 기존의 콘크리트 흄관과 대체되어 사용되고 있다.In general, fume pipes made of concrete were mainly used as rainwater and sewage pipes such as roads and ports, but due to the increase in construction cost and construction period, such as increased weight and volume, transportation and handling are inconvenient, and heavy equipment input is required during construction. Recently, a corrugated steel pipe with a corrugated corrugation formed on the body of the pipe is used to connect the boundary with a lock seam using a hot-dip galvanized steel sheet. Such corrugated steel pipes are easy to transport and handle because they have excellent workability and light weight. In addition, since it can reduce construction cost and construction period, it is being used by replacing the existing concrete fume pipe.

도1 및 도2에 도시된 바와 같이, 이와 같은 파형강관(10)의 경우 원주방향으로 나선형 굴곡부(11)들이 반복되어 우수 및 오수, 생활용수 또는 산업용수 등의 유체가 원활히 흐르지 못하고 파형강관 내부 굴곡부(5)에 잔류하는 이물질 등이 부패하여 주 소재인 강판을 부식시켜 파형강관의 사용 수명을 단축시킬 뿐 아니라, 시공 후 강관의 위로 차량과 같은 중량물이 통과하는 등의 경우 외압으로 인해 변형되어 손상되는 문제가 있다. 1 and 2, in the case of such a corrugated steel pipe 10, the spiral bent portions 11 are repeated in the circumferential direction, so that fluid such as rainwater, sewage, household water, or industrial water does not flow smoothly, and the inside of the corrugated steel pipe Foreign matter remaining in the bend (5) decays and corrodes the steel plate, which is the main material, shortening the service life of the corrugated steel pipe.In addition, in the case of heavy objects such as vehicles passing over the steel pipe after construction, it is deformed due to external pressure. There is a problem of being damaged.

등록특허 제10-1847987호Registered Patent No. 10-1847987 등록특허 제10-1825354호Registered Patent No. 10-1825354

상기한 바와 같은 문제점을 해결하기 위해 발명된 것으로, 본 발명은 강관의 외부에 형성되는 돌부에 철심을 삽입하여 그 강관의 강도를 증대시키고, 강관의 내경부는 평탄하게 하여 강관내 유체흐름을 원활하게 하고, 우수 및 오수, 생활용수 또는 산업용수의 고임을 방지하여 부패 및 악취 제거 및 이러한 우수 및 오수, 생활용수 또는 산업용수로 인한 강관의 부식을 방지하여 강관의 수명을 연장할 수 있도록 하는 철심이 삽입된 돌부가 형성된 내부 평활 강관을 제공하는 데 그 목적이 있다.Invented to solve the above problems, the present invention increases the strength of the steel pipe by inserting an iron core into a protrusion formed on the outside of the steel pipe, and smoothes the inner diameter of the steel pipe to smooth the fluid flow in the steel pipe. The iron core is designed to extend the life of steel pipes by preventing the accumulation of rainwater and wastewater, household water, or industrial water to remove spoilage and odors, and to prevent corrosion of steel pipes caused by such rainwater and wastewater, household water, or industrial water. An object thereof is to provide an internal smooth steel pipe in which an inserted protrusion is formed.

상기한 바와 같은 과제를 해결하기 위한 수단으로, 본 발명인 철심이 삽입된 돌부가 형성된 내부 평활 강관은, 롤상태로 말아진 평판형태의 아연도금강판을 언코일러에 장착한 상태에서 상기 언코일러를 작동시켜 롤 상태의 상기 아연도금강판을 롤 포밍기에 투입하는 단계; 상기 아연도금강판을 롤 포밍기에 통과시켜 내측 중앙으로 돌출된 복수의 평활지지부를 성형하는 단계; 상기 평활지지부를 갖는 아연도금강판을 상기 롤 포밍기에 통과시켜 상기 평활지지부의 양측 외측으로 한 쌍의 주름부를 성형하는 단계; 상기 한 쌍의 주름부와 평활지지부에 의해 형성된 ∪자 형태의 공간으로 복수의 철심을 삽입하는 단계; 포밍성형기에 의하여 상기 철심을 중심으로 상기 한쌍의 주름부를 포밍성형하여 돌부를 성형하는 단계를 포함하여 구성되는 것을 특징으로 한다.As a means for solving the above-described problems, the internal smooth steel pipe in which the protrusion into which the iron core is inserted is formed, according to the present invention, operates the uncoiler in a state in which a flat plate-shaped galvanized steel sheet rolled in a roll state is mounted on the uncoiler. Injecting the galvanized steel sheet in a roll state into a roll forming machine; Passing the galvanized steel sheet through a roll forming machine to form a plurality of smoothing supports protruding toward the inner center; Passing the galvanized steel sheet having the smoothing support portion through the roll forming machine to form a pair of corrugated portions outward on both sides of the smoothing support portion; Inserting a plurality of iron cores into a ∪-shaped space formed by the pair of corrugated portions and smoothing support portions; It characterized in that it comprises the step of forming a protrusion by forming the pair of corrugated parts around the iron core by a forming machine.

또한, 상기 롤 포밍성형기의 롤의 아연도금강판 포밍성형부에는 구리(Cu)를 코팅하고 윤활 방청제를 지속적으로 투입하는 것을 특징으로 하여 구성되는 것을 특징으로 한다.In addition, the roll forming machine is characterized in that it is configured by coating copper (Cu) on the forming portion of the roll of the galvanized steel sheet and continuously adding a lubricating rust inhibitor.

또한, 서로 평형하고 틈새없이 기밀하게 밀착되어 형성된 관 몸체의 내경부와 평활지지부; 한쌍의 주름부; 상기 평활지지부와 주름부에 의해 감싸진 철심; 상기 평활지지부, 상기 주름부와 상기 철심으로 형성된 돌부가 형성된 것을 특징으로 하여 구성되는 것을 특징으로 한다.In addition, the inner diameter portion and the smooth support portion of the tube body formed by being in close contact with each other in an airtight manner without a gap; A pair of wrinkles; An iron core wrapped by the smooth support portion and the wrinkle portion; It characterized in that it is configured by the smooth support portion, characterized in that the corrugated portion and the protrusion formed by the iron core is formed.

또한, 상기 철심의 단면은 삼각형, 사각형 또는 원형으로 된 것을 특징으로 한다.In addition, the cross section of the iron core is characterized in that the triangular, square or circular shape.

상기한 바와 같은 과제해결수단을 통해, 본 발명인 철심이 삽입된 돌부가 형성된 내부 평활 강관은 강관의 외부에 형성되는 돌부에 철심을 삽입하여 설치 후 차량 등에 의해 발생하는 외압으로부터 강관의 손상을 방지하고, 평탄하게 형성된 강관 내부로 우수 및 오수, 생활용수 또는 산업용수 등의 유체흐름을 원활하게 하여, 유체의 고임으로 인한 부패 및 악취 제거와 강관의 부식을 방지하여 강관의 수명을 연장할 수 있도록 하는 등의 이점이 있다.Through the problem solving means as described above, the internal smooth steel pipe in which the protrusion into which the iron core is inserted is formed by inserting the iron core into the protrusion formed on the outside of the steel pipe to prevent damage to the steel pipe from external pressure generated by vehicles, etc. , It facilitates the fluid flow of rainwater, sewage, household water, industrial water, etc. into the flatly formed steel pipe, thereby preventing corruption and odors caused by fluid accumulation and preventing corrosion of the steel pipe, thereby extending the life of the steel pipe. There are such advantages.

도 1은 일반적인 파형강관의 요부를 도시한 사시도이다.
도 2는 일반적인 파형강관의 요부를 도시한 종단면도이다.
도 3은 본 발명에 따른 철심이 삽입된 돌부가 형성된 내부 평활 강관의 요부를 도시한 사시도이다.
도 4는 본발명에 따른 철심이 삽입된 돌부가 형성된 내부 평활 강관의 요부를 도시한 종단면도이다.
도 5는 본 발명에 따른 철심이 삽입된 돌부가 형성된 내부 평활 강관의 돌부의 실시예들을 도시한 종단면도이다.1 is a perspective view showing a main part of a general corrugated steel pipe.
2 is a longitudinal sectional view showing the main parts of a general corrugated steel pipe.
3 is a perspective view showing a main part of an internal smooth steel pipe in which a protrusion into which an iron core is inserted is formed according to the present invention.
4 is a longitudinal sectional view showing a main part of an internal smooth steel pipe in which a protrusion into which an iron core is inserted is formed according to the present invention.
5 is a longitudinal sectional view showing examples of protrusions of an internal smooth steel pipe in which a protrusion into which an iron core is inserted according to the present invention is formed.

본 발명에 기재된 실시예 및 도면에 도시된 구성은 본 발명의 바람직한 실시예에 불과할 뿐이고, 본 발명의 기술적 사상을 모두 표현하는 것은 아니므로, 본 발명의 권리범위는 본문에 설명된 실시예 및 도면에 의하여 제한되는 것으로 해석되어서는 아니 된다. 즉, 실시예는 다양한 변경이 가능하고 여러 가지 형태를 가질 수 있으므로 본 발명의 권리범위는 기술적 사상을 실현할 수 있는 균등물들을 포함하는 것으로 이해되어야 한다. 또한, 본 발명에서 제시된 목적 또는 효과는 특정 실시예가 이를 전부 포함하여야 한다거나 그러한 효과만을 포함하여야 한다는 의미는 아니므로, 본 발명의 권리범위는 이에 의하여 제한되는 것으로 이해되어서는 아니 될 것이다.Since the embodiments described in the present invention and the configurations shown in the drawings are only preferred embodiments of the present invention, and do not represent all the technical spirit of the present invention, the scope of the present invention is limited to the embodiments and drawings described in the text. Should not be construed as limited by That is, since the embodiments can be variously changed and have various forms, the scope of the present invention should be understood to include equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only those effects, the scope of the present invention should not be understood as being limited thereto.

여기서 사용되는 모든 용어들은 다르게 정의되지 않는 한, 본 발명이 속하는 분야에서 통상의 지식을 가진 자에 의해 일반적으로 이해되는 것과 동일한 의미를 가진다. 일반적으로 사용되는 사전에 정의되어 있는 용어들은 관련 기술의 문맥상 가지는 의미와 일치하는 것으로 해석되어야 하며, 본 발명에서 명백하게 정의하지 않는 이상적이거나 과도하게 형식적인 의미를 지니는 것으로 해석될 수 없다.All terms used herein have the same meaning as commonly understood by one of ordinary skill in the field to which the present invention belongs, unless otherwise defined. Terms defined in commonly used dictionaries should be interpreted as having meanings in the context of related technologies, and cannot be interpreted as having ideal or excessively formal meanings that are not clearly defined in the present invention.

이하, 본 발명에 따른 철심이 삽입된 돌부가 형성된 내부 평활 강관의 바람직한 실시 예를 첨부된 도면을 참조하여 구체적으로 설명한다.Hereinafter, with reference to the accompanying drawings, a preferred embodiment of an internal smooth steel pipe in which a protrusion into which an iron core is inserted according to the present invention is formed will be described in detail.

도 1은 일반적인 파형강관의 요부를 도시한 사시도이고, 도 2는 일반적인 파형강관의 요부를 도시한 종단면도이고, 도 3은 본 발명에 따른 철심이 삽입된 돌부가 형성된 내부 평활 강관의 요부를 도시한 사시도이고, 도 4는 본발명에 따른 철심이 삽입된 돌부가 형성된 내부 평활 강관의 요부를 도시한 종단면도이며, 도 5는 본 발명에 따른 철심이 삽입된 돌부가 형성된 내부 평활 강관의 돌부의 실시예들을 도시한 종단면도이다.1 is a perspective view showing a main part of a general corrugated steel pipe, FIG. 2 is a longitudinal sectional view showing a main part of a general corrugated steel pipe, and FIG. 3 is a main part of an internal smooth steel pipe in which a protrusion into which an iron core is inserted is formed according to the present invention. 1 is a perspective view, and FIG. 4 is a longitudinal sectional view showing a main part of an internal smooth steel pipe with a protrusion into which an iron core is inserted according to the present invention, and FIG. 5 is a protrusion of an internal smooth steel pipe with a protrusion into which an iron core is inserted according to the present invention. It is a longitudinal sectional view showing embodiments.

도 3 및 도4에 도시된 바와 같이, 본 발명에 따른 철심이 삽입된 돌부가 형성된 내부 평활 강관은 관 몸체(1)에 평활지지부(21)와 주름부(22), 철심(3)이 일체로 된 복수의 돌부(2)를 포함하여 구성된다.3 and 4, the internal smooth steel pipe in which the protrusion into which the iron core is inserted according to the present invention is formed is a smooth support part 21, a corrugation part 22, and an iron core 3 in the tube body 1 It consists of a plurality of protrusions (2) made of.

도 5에 도시된 바와 같이, 상기 돌부(2)는 주름부(22)와 평활지지부(21)속에 삽입되는 철심(3)의 형태에 따라 틈새없이 기밀을 유지하여 형성된다.As shown in FIG. 5, the protrusion 2 is formed by maintaining airtightness without gaps according to the shape of the iron core 3 inserted into the corrugated portion 22 and the smoothing support portion 21.

이와 같이 구성된 철심이 삽입된 돌부가 형성된 내부 평활 강관은 다음과 같이 제작된다.The internal smooth steel pipe in which the protrusion in which the iron core is inserted is formed is manufactured as follows.

먼저 롤상태로 말아진 평판형태의 아연도금강판을 언코일러에 장착한 상태에서 상기 언코일러를 작동시키면 롤 상태의 상기 아연도금강판이 풀리면서 일측에 있는 롤 포밍기를 통과하는데, 이때 아연도금강판은 롤 포밍기를 단계적으로 통과하면서 그 구조에 따라 내측 중앙으로 돌출된 평활지지부(21)와 상기 평활지지부(21)의 양측 외측으로 돌출된 한 쌍의 주름부(22)를 갖는 복수의 돌부(2)가 길이방향으로 1차 포밍성형된 이후, 상기 한 쌍의 주름부(22)와 평활지지부(21)에 의해 형성된 ∪자 형태의 공간으로 철심(3)이 삽입되는 동시에 철심(3)을 중심으로 주름부(22)가 2차 포밍성형되면서 관 몸체(1)와 평활지지부(21)가 틈새없이 기밀을 유지하도록 일체화된 돌부(2)가 형성된다.First, when the uncoiler is operated while a rolled flat plate type galvanized steel sheet is mounted on the uncoiler, the rolled galvanized steel sheet is released and passes through a roll forming machine on one side.At this time, the galvanized steel sheet is A plurality of protrusions (2) having a smooth support portion (21) protruding to the inner center and a pair of corrugations (22) protruding outward on both sides of the smooth support portion (21) while passing through the roll forming machine step by step. After the first forming molding in the longitudinal direction, the iron core 3 is inserted into the ∪-shaped space formed by the pair of corrugated portions 22 and the smooth support portion 21, and at the same time, the core 3 is centered. As the corrugated portion 22 is secondary foaming, the integral protrusion 2 is formed so that the tube body 1 and the smooth support portion 21 maintain airtightness without a gap.

상기 아연도금강판에 형성되는 복수의 돌부(2)의 개수는 돌부(2)가 형성된 내부 평활 강관의 용도나 아연도금강판의 두께 등에 의해 결정되는데, 여기서는 2 내지 3개의 돌부(2)가 형성되는 것을 예로 설명한다.The number of the plurality of protrusions 2 formed on the galvanized steel sheet is determined by the use of the internal smooth steel pipe in which the protrusions 2 are formed, the thickness of the galvanized steel sheet, etc., where 2 to 3 protrusions 2 are formed. This will be described as an example.

상기 철심(3)의 단면은 외압의 강도를 고려하여 사각형(2), 삼각형(b) 또는 원형(c) 중 어느 하나일 수 있다.The cross section of the iron core 3 may be any one of a square (2), a triangle (b), or a circle (c) in consideration of the strength of external pressure.

여기서, 상기한 과정에서 아연도금강판이 롤 포밍기를 통과하면서 길이방향을 따라 돌부(2)가 성형될 때, 상기 아연도금강판의 양측단부에는 후술하는 과정에서 락심연결이 이루어지도록 하기 위한 연결고리도 형성된다.Here, when the galvanized steel sheet passes through the roll forming machine and the protrusion 2 is formed along the longitudinal direction in the above-described process, both ends of the galvanized steel sheet also have a connection ring for making the lock seam connection in the process described later. Is formed.

이후 상기 돌부(2)가 길이방향으로 형성됨과 함께 연결고리가 형성된 아연도금강판은 구조적 작용으로 인해 내부에서 나선상으로 말아지면서 그 양측단부가 연결고리에 의해 락심 연결됨에 따라 상기 아연도금강판은 돌부(2)가 형성된 상태에서 원통형상으로 관 몸체(1)를 이루어 결국 도 4 및 도 5와 같은 구조의 본 발명의 철심이 삽입된 돌부가 형성된 내부 평활 강관이 얻어진다.Thereafter, the galvanized steel sheet with the protrusion 2 formed in the longitudinal direction and the connecting ring formed therein is spirally rolled inside due to the structural action, and the both ends thereof are connected to the lock shim by the connecting ring. In the state 2) is formed, the tube body 1 is formed in a cylindrical shape, so that an internal smooth steel pipe having a protrusion into which the iron core of the present invention is inserted having a structure as shown in FIGS. 4 and 5 is formed is obtained.

이와 같이 얻어진 본 발명의 철심이 삽입된 돌부가 형성된 내부 평활 강관은 시공후 사용하는 과정에서 우수 및 오수, 생활용수 또는 산업용수 등의 유체가 상기 본 발명의 철심이 삽입된 돌부가 형성된 내부 평활 강관을 따라 흐를 때, 관 몸체(1)의 강도 향상을 위해 형성된 돌부(2)의 평활지지부(21)와 관 몸체(1)가 틈새없이 기밀이 유지된 상태이므로 관 몸체(1)의 내경부가 락심 연결부위를 제외한 나머지 부분이 매끄러운 평활상태가 된다. 따라서, 관 몸체(1)의 내부를 흐르는 우수 및 오수, 생활용수 또는 산업용수 등의 유체는 양호한 흐름성을 갖게 됨은 물론 침전물도 쌓이지 않게 된다.The internal smoothing steel pipe with the protrusions into which the iron core of the present invention is inserted is the internal smooth steel pipe in which the protrusions into which the iron core of the present invention is inserted are formed of rainwater and fluids such as sewage, household water or industrial water in the process of use after construction. When flowing along the pipe body (1), the smooth support portion (21) of the protrusion (2) formed to improve the strength of the pipe body (1) and the pipe body (1) are kept airtight without any gaps, so the inner diameter of the pipe body (1) is locked. The rest of the parts except the connection part become smooth and smooth. Therefore, rainwater flowing inside the tube body 1 and fluids such as sewage, household water, or industrial water have good flowability, as well as sediments are not accumulated.

아울러, 외부로 노출된 철심이 삽입된 돌부(2)에 외력이 가해질 경우, 돌부(2)의 강도가 구조적으로 견고하여 돌부(2)가 형성된 강관은 쉽게 손상되지 않게 된다.In addition, when an external force is applied to the protrusion 2 into which the iron core exposed to the outside is inserted, the strength of the protrusion 2 is structurally strong and the steel pipe in which the protrusion 2 is formed is not easily damaged.

또한, 돌부(2) 롤 포밍성형기의 상하 롤의 아연도금강판 포밍성형부에는 구리(Cu)를 코팅하고 윤활 방청제를 지속적으로 투입하여 성형시 아연도금강판의 아연도금의 박리를 방지하여 완성된 강관의 수명이 연장되도록 한다.In addition, the protrusion (2) is coated with copper (Cu) on the forming part of the galvanized steel sheet on the upper and lower rolls of the roll forming machine, and a lubricating rust inhibitor is continuously added to prevent the galvanization of the galvanized steel sheet from peeling off during forming. To extend the life of the product.

상기한 바와 같은 구성을 통해, 본 발명인 철심이 삽입된 돌부가 형성된 내부 평활 강관은 발생하는 외압으로부터 강관의 손상을 방지하고, 평탄하게 형성된 강관 내부로 우수 및 오수, 생활용수 또는 산업용수 등의 유체흐름을 원활하게 하여, 유체의 고임으로 인한 부패 및 악취 제거와 강관의 부식을 방지하여 강관의 수명을 연장할 수 있도록 하는 등의 이점이 있다.Through the configuration as described above, the internal smooth steel pipe in which the protrusion into which the iron core is inserted is formed prevents damage to the steel pipe from the external pressure generated, and fluids such as rainwater, sewage, household water or industrial water into the flatly formed steel pipe There is an advantage in that the life of the steel pipe can be prolonged by smoothing the flow, removing decay and odor due to the accumulation of fluid, and preventing corrosion of the steel pipe.

1: 관 몸체 2: 돌부
3: 철심 21: 평활지지부
22: 주름부 4: 내경부1: tube body 2: protrusion
3: iron core 21: smooth support
22: wrinkle portion 4: inner diameter portion

Claims (1)

서로 평형하고 틈새없이 기밀하게 밀착되어 형성된 관 몸체의 내경부와 평활지지부;
한쌍의 주름부;
상기 평활지지부, 상기 주름부로 형성된 돌부가 형성된 것을 특징으로 하는 돌부가 형성된 내부 평활 강관The inner diameter portion and the smooth support portion of the tube body formed by being in close contact with each other in an airtight manner without a gap;
A pair of wrinkles;
Inner smooth steel pipe with protrusions, characterized in that the smooth support portion and the protrusion formed by the corrugation portion are formed
KR1020190092776A 2019-07-31 2019-07-31 Manufacturing method of internal smooth steel pipe with iron wire inserted projections KR20210014841A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101825354B1 (en) 2017-08-23 2018-02-05 주식회사 동해종합기술공사 Wave pipe H-type water-tight band
KR101847987B1 (en) 2017-10-20 2018-04-11 (주)영신 Method for manufacturing water-tight corrugated steel pipe using water-tight adhesive agent

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101825354B1 (en) 2017-08-23 2018-02-05 주식회사 동해종합기술공사 Wave pipe H-type water-tight band
KR101847987B1 (en) 2017-10-20 2018-04-11 (주)영신 Method for manufacturing water-tight corrugated steel pipe using water-tight adhesive agent

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