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KR101716247B1 - Enamel coating device for metal tube - Google Patents

Enamel coating device for metal tube Download PDF

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KR101716247B1
KR101716247B1 KR1020150183298A KR20150183298A KR101716247B1 KR 101716247 B1 KR101716247 B1 KR 101716247B1 KR 1020150183298 A KR1020150183298 A KR 1020150183298A KR 20150183298 A KR20150183298 A KR 20150183298A KR 101716247 B1 KR101716247 B1 KR 101716247B1
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chamber
metal tube
enamel
tube
coating
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우종인
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비에이치아이 주식회사
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    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23DENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D5/00Coating with enamels or vitreous layers
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23DENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D13/00After-treatment of the enamelled articles
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23DENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D5/00Coating with enamels or vitreous layers
    • C23D5/005Coating with enamels or vitreous layers by a method specially adapted for coating special objects
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23DENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D9/00Ovens specially adapted for firing enamels
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23DENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D9/00Ovens specially adapted for firing enamels
    • C23D9/10Loading or unloading devices

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating Apparatus (AREA)

Abstract

본 발명은 금속 튜브의 법랑코팅 품질을 유지할 수 있고, 법랑 유약이 도포 된 후 소성챔버로의 이송과정에서 금속 튜브의 손상을 방지할 수 있는 금속 튜브 법랑코팅장치를 제공하려는 것으로서, 법랑을 코팅할 금속 튜브들을 일시 보관하는 튜브 대기장과 전처리 챔버, 코팅챔버 및 소성챔버가 일렬로 배치된 금속 튜브 법랑코팅장치에서 튜브 대기장에서 전처리 챔버와 코팅챔버 및 소성챔버의 출구까지를 직선으로 잇는 복수의 가이드 바가 평행하게 부설되고, 튜브 대기장에 있던 법랑코팅 대기 금속 튜브를 전처리 챔버와 코팅챔버 및 소성챔버를 향해 연속적으로 굴러가면서 법랑 유약이 코팅되고 소성되도록 이송하는 튜브 굴림이송수단을 구비한 금속 튜브용 법랑코팅장치를 특징으로 한다.The present invention provides a metal tube enamel coating apparatus capable of maintaining the enamel coating quality of a metal tube and preventing damage to the metal tube in the process of transferring the enamel glaze to the firing chamber. A tube tube for temporarily storing metal tubes, a metal tube in which a pretreatment chamber, a coating chamber, and a firing chamber are arranged in a line. In an enamel coating apparatus, a plurality of straight lines connecting the pretreatment chamber and the coating chamber and the outlet of the firing chamber A metal tube having a guide bar attached in parallel and having tube rolling means for transporting enamel glaze coated and fired while continuously rolling the enamel coating atmospheric metal tube in the tube waiting area toward the pretreatment chamber and the coating chamber and the firing chamber And an enamel coating device.

Description

금속 튜브용 법랑코팅장치{ENAMEL COATING DEVICE FOR METAL TUBE}ENAMEL COATING DEVICE FOR METAL TUBE

본 발명은 금속 튜브의 표면에 법랑 유약을 코팅하여 소성하는 금속 튜브용 법랑 코팅장치에 관한 것이며, 특히 법랑코팅의 품질유지와 법랑 유약 코팅 후 소성챔버로 이송될 때 금속 튜브의 손상 예방을 목적으로 하는 금속 튜브용 법랑코팅장치에 관한 것이다. The present invention relates to an enamel coating apparatus for a metal tube coated with an enamel glaze on the surface of a metal tube, and more particularly, to an enamel coating apparatus for enamel coating apparatus for the purpose of maintaining the quality of enamel coating and preventing damage to the metal tube when the enamel glaze is transported to the firing chamber To an enamel coating apparatus for a metal tube.

배열회수보일러, 열교환기와 같이 습기와 밀접한 관련이 있는 산업설비에서 열교환용으로 널리 쓰이는 금속 튜브 중에는 방식성과 내열성, 내산성을 고려하여 법랑으로 코팅하는 기술이 있다. 선행기술문헌으로 알려진 등록특허 10-1074438호가 좋은 본보기다.Among the metal tubes widely used for heat exchange in industrial facilities closely related to moisture, such as batch recovery boilers and heat exchangers, there is a technique of coating with enamel considering the corrosion resistance, heat resistance and acid resistance. Patent No. 10-1074438 known as the prior art document is a good example.

이 선행기술은 인 피드(in-feed) 컨베이어로 금속 튜브를 회전시키면서 금속 튜브의 길이방향대로 전처리 챔버로 이송하여 표면에 묻은 이물질을 제거하고, 이어서 전처리된 금속 튜브를 코팅챔버로 이송하여 노즐에서 분사되는 법랑 유약을 코팅한 후 소성챔버로 이송하여 소성해 반출하도록 된 것이다.This prior art transports the metal tube longitudinally along the length of the metal tube while rotating the metal tube with an in-feed conveyor to remove foreign matter on the surface and then transfers the pretreated metal tube to the coating chamber, The coated enamel glaze is coated and transported to the plasticizing chamber for firing.

관점은 법랑코팅의 채산성과 소성챔버로 이송되는 금속튜브에 묻은 법랑 유약의 품질 유지 및 금속 튜브의 외주면에 부착된 핀의 안전이다. 상기 선행기술에서는 법랑코팅이 가능한 금속 튜브가 길이 5m 이하로 제안되어 있다. 5m 이상의 장척 금속 튜브는 대형 소성챔버를 요하는데, 낮은 소성채산성이 걸림돌이 돼 적용하기를 주저해 왔다. The viewpoint is the profitability of the enamel coating, the maintenance of the quality of the enamel glaze on the metal tube transferred to the firing chamber, and the safety of the pin attached to the outer surface of the metal tube. In the prior art, a metal tube capable of enamel coating is proposed to be 5 m or less in length. Longer metal tubes of 5 m or more require a large firing chamber, which has been a stumbling block to low firing profitability.

법랑 유약 코팅챔버를 통과한 금속 튜브는 표면에 묻은 법랑 유약이 완전히 굳어지지 아니한 채 소성챔버로 이송되는데, 이 과정에서 도 1에 예시된대로 금속 튜브를 받쳐주는 안내롤의 V형 안내면에 법랑 유약이 긁혀서 점점이 뭉쳐 방울지는 현상 때문에 법랑코팅 품질이 떨어진다. The metal tube passing through the enamel glazing coating chamber is transferred to the plasticizing chamber without completely hardening the enamel glaze on the surface. In this process, as shown in Fig. 1, the enamel glaze The quality of the enamel coating is deteriorated due to the phenomenon of scraping and clogging.

법랑 유약이 코팅된 금속 튜브가 코팅챔버에서 소성챔버로 이송될 초기에 종종 금속 튜브의 선단 쪽 핀이 코팅챔버와 소성챔버 사이에 설치된 안내롤에 옮겨 실리는 초기에 바르지 못한 자세로 접촉하면서 그 충격으로 인해 핀의 형상이 일그러지는 현상이 잦았다.The metal tube coated with the enamel glaze is initially transferred from the coating chamber to the firing chamber, often at an early stage when the tip of the metal tube is transferred to the guide roll installed between the coating chamber and the firing chamber, The shape of the pin is often distorted.

이런 점을 고려하면, 법랑코팅 금속 튜브의 품질 유지를 위해서는 법랑 유약이 안내롤에 긁혀서 점점이 뭉쳐지는 현상을 방지하고, 안내롤과 핀의 충돌을 피해 형상이 일그러지는 문제에 대하여 기술적으로 유효 적절한 대책을 강구할 필요가 있다.Considering this point, in order to maintain the quality of the enamel coated metal tube, the enamel glaze is scratched on the guide roll to prevent clumping, and the technical problem is solved that the shape is distorted due to the collision between the guide roll and the pin There is a need to take appropriate measures.

JP 56089867JP 56089867 KR 2004-22080 Y1KR 2004-22080 Y1 KP 10-1074438KP 10-1074438

본 발명의 목적은 금속 튜브의 법랑 코팅 품질을 유지할 수 있고, 법랑 유약이 도포된 후 소성챔버로의 이송과정에서 금속 튜브의 손상을 방지할 수 있는 금속 튜브 법랑코팅장치를 제공하려는 것이다.It is an object of the present invention to provide a metal tube enamel coating apparatus capable of maintaining enamel coating quality of a metal tube and preventing damages of the metal tube in the process of being transferred to the firing chamber after enamel glaze is applied.

상기 목적을 달성하기 위해서 본 발명은, 법랑을 코팅할 금속 튜브들을 일시 보관하는 튜브 대기장과 전처리 챔버, 코팅챔버 및 소성챔버가 일렬로 배치된 금속 튜브 법랑코팅장치에서 튜브 대기장에서 전처리 챔버와 코팅챔버 및 소성챔버의 출구까지를 직선으로 잇는 복수의 가이드 바가 평행하게 부설되고, 튜브 대기장에 있던 법랑코팅 대기 금속 튜브를 전처리 챔버와 코팅챔버 및 소성챔버를 향해 연속적으로 굴러가면서 법랑 유약이 코팅되고 소성되도록 이송하는 튜브 굴림이송수단을 구비한 금속 튜브용 법랑코팅장치로 구현할 수 있다.In order to achieve the above object, the present invention provides a metal tube enamel coating apparatus in which a tubular chamber for temporarily storing metal enamel coatings, a pretreatment chamber, a coating chamber, and a firing chamber are arranged in a line, A plurality of guide bars linearly connecting the coating chamber and the exit of the firing chamber are installed in parallel and the enamel coating atmosphere metal tube in the tube atmosphere is continuously rolled toward the pretreatment chamber and the coating chamber and the firing chamber while the enamel glaze coating And an enamel coating apparatus for a metal tube having tube rolling transfer means for transferring the metal tube to be fired.

가이드 바는 금속 튜브의 표면에 코팅되어 채 굳지 아니한 법랑유약이 옮겨 묻지 않거나 극력 억제되는 성질을 가진 재질 또는 그런 재질로 코팅된 금속 바이다. The guide bar is made of a material coated with a metal tube or a material having a property that the enamel glaze which is not hardened is not transferred or suppressed as much as possible, or coated with such a material.

본 발명은 표면에 법랑 유약이 코팅된 금속 튜브가 가이드 바 위를 굴러가면 표면의 법랑 유약이 가이드 바에 긁히지 않으므로 법랑코팅 품질이 개선되고, 법랑 유약이 도포된 금속 튜브는 코팅챔버에서 소성챔버로 부드럽게 굴러 이송되므로 그 과정에서 금속 튜브는 물론 핀 튜브의 핀이 손상되지도 않는다.In the present invention, when a metal tube coated with enamel glaze on the surface is rolled on a guide bar, the enamel glaze on the surface is not scratched on the guide bar, so that the enamel coating quality is improved, and the metal tube coated with enamel glaze is softened The pins are not damaged as well as the metal tubes in the process.

그래서 양질의 법랑코팅 금속 튜브를 얻을 수 있게 되는 것이다.Thus, a high quality enamel coated metal tube can be obtained.

도 1은 본 발명에 의한 금속 튜브용 법랑코팅장치의 평면도
도 2는 동 정면도
도 3은 코팅챔버를 예로 든 가이드 바의 설치예시도
도 4는 코팅챔버측 종단측면도
1 is a plan view of an enamel coating apparatus for a metal tube according to the present invention;
Fig. 2 is a cross-
Figure 3 is an example of the installation of a guide bar,
Figure 4 is a side view of the coating chamber side end

도 1 및 도 2에 표현한바와 같이, 튜브 대기장(3)과 전처리 챔버(4), 코팅챔버(5) 및 소성챔버(6)가 일렬로 배치된 통상의 금속 튜브용 법랑코팅장치에 있어서, 튜브 대기장(3)에서 소성챔버(6)의 출구에 이르는 금속 튜브 이송경로에는 가이드 바(7)가 부설되어 있다. 1 and 2, in an enamel coating apparatus for a normal metal tube in which a tube atmosphere field 3 and a pretreatment chamber 4, a coating chamber 5 and a firing chamber 6 are arranged in a line, A guide bar (7) is laid on the metal tube feeding path from the tube waiting chamber (3) to the outlet of the firing chamber (6).

가이드 바(7)는 종래의 V형 안내면을 가진 안내롤 대용으로서, 안내롤의 홈을 타고 길이방향으로 이송되던 금속 튜브를 옆으로 굴려서 전처리, 법랑 유약 코팅, 소성, 반출되도록 유도하는데 적합하다. The guide bar 7 is suitable for guide rolls having a conventional V-shaped guide surface and is suitable for guiding the metal tube, which has been transported in the lengthwise direction through the groove of the guide roll, to the side so as to be subjected to pretreatment, enamel glaze coating, firing and transportation.

금속 튜브(1)는 전처리 챔버(4)를 거쳐서 터널형 코팅챔버(5) 속을 아주 느린 속도로 굴러가면서 노즐에서 분사되는 법랑 유약이 표면에 코팅되고, 그 속도대로 가이드 바(7) 위를 타고 굴러 가다가 소성챔버(6)로 진입해 소성된다.The metal tube 1 is coated on the surface with an enamel glaze sprayed from the nozzle while rolling through the tunnel-like coating chamber 5 through the pretreatment chamber 4 at a very low speed, And then burned and then entered into the firing chamber 6 and fired.

법랑 유약이 코팅된 금속 튜브(1)가 가이드 바(7)를 타고 법랑 코팅 소성방향으로 굴러가는 동안 법랑 유약이 가이드 바(7)의 표면에 긁히지 않는다. 그 결과, 법랑 유약이 긁혀서 뭉쳐지는 일이 없어 법랑 코팅의 품질이 개선될 수 있는 것이다. The enamel glaze is not scratched on the surface of the guide bar 7 while the metal tube 1 coated with enamel glaze rides on the guide bar 7 in the enamel coating firing direction. As a result, the quality of the enamel coating can be improved because the enamel glaze is not scratched and united.

법랑코팅 품질 유지에 더욱 바람직하기로는 가이드 바(7)를 법랑 유약이 옮겨 묻지 않는 내열성 재질로 제작하거나, 적어도 그런 성질을 가진 물질로 코팅된 금속 바로 만든다. 그런 물질로 대표적인 것이 테프론이다.In order to maintain the enamel coating quality, the guide bar 7 is made of a heat resistant material that does not transfer enamel glaze, or at least a metal bar coated with a substance having such properties. A typical example of such a material is Teflon.

가이드 바(7)는 도 3과 같이 여러 개를 평행하게 설치하여 금속 튜브(1)가 바르게 굴러가도록 한다. 특히 5m를 넘는 장척의 금속 튜브는 법랑코팅과정에서 처짐이 발생할 수 있으므로 금속 튜브의 중간을 받쳐 줄 가이드 바가 필요하다.As shown in FIG. 3, a plurality of guide bars 7 are installed in parallel to allow the metal tube 1 to roll properly. In particular, a long metal tube of more than 5 m may require a guide bar to support the middle of the metal tube, since deflection may occur during the enamel coating process.

그리고 가이드 바(7)의 상면(7a)은 금속 튜브가 타고 굴러갈 때 접촉저항을 최소화할 수 있는 협폭으로 설계하여 법랑 유약이 훼실을 방지한다.The upper surface 7a of the guide bar 7 is designed to have a narrow width that minimizes the contact resistance when the metal tube is rolled up to prevent the enamel glaze from being damaged.

금속 튜브(1)가 튜브 대기장(3)의 투입단계에서부터 낱개씩 일정한 피치로 투입된 후 소성챔버(6)를 빠져나갈 때까지 등속으로 굴려서 이송할 굴림이송수단(8)은 반드시 갖춰야 될 요소다. 도면에는 무한궤도형 캐터필러가 튜브 굴림이송수단(8)으로 예시되어 있다. The rolling conveying means 8 for rolling the metal tube 1 at a constant speed until the metal tube 1 is injected at a constant pitch from the input stage of the tube atmosphere field 3 to the exit from the firing chamber 6 is an essential element . In the drawing, an endless track type caterpillar is illustrated as the tube rolling conveying means 8.

튜브 굴림이송수단(8)은 코팅챔버(5) 구간을 주행할 때 비산되는 법랑 유약이 표면에 묻을 수 있는 점을 감안하면 비법랑 유약 비친화성 재질 또는 그런 물질로 코팅될 것이 요망되고, 소성챔버(6) 구간을 통과할 때에는 고열에 견뎌야 하므로 내열성 금속제일 것도 함께 요구된다.In view of the fact that the enamel glaze scattered when traveling in the section of the coating chamber 5 travels in the section of the coating chamber 5, it is desired that the tube rolling transfer means 8 be coated with a non-compatible glaze non-affinity material or such material, (6), they are required to withstand high temperatures, so they are also required to be made of heat resistant metals.

이러한 튜브 굴림이송수단(8)은 프레임(9) 상에 설치된 구동수단(10)에 의해 궤도를 선회하면서 주기적으로 낱개의 금속 튜브를 전처리 챔버(4)로 투입하고 코팅챔버(5)와 소성챔버(6)를 거쳐 소성시켜 반출하는 일련의 금속 튜브 법랑코팅작업이 실행되도록 한다. 튜브 굴림이송수단용 구동수단(10)은 코팅챔버(5)에서 금속 튜브(1)의 표면에 코팅된 법랑 유약이 원심력으로 인해 비산되지 않고 통과하는데 적합한 초저속형 기어드 모터 등이다. 또한 굴림이동수단은 캐터필러가 아닌 또 다른 장치나 방법을 이용할 수 있다. The tube rolling conveying means 8 periodically feeds a single metal tube into the pretreatment chamber 4 while rotating the orbit by the driving means 10 provided on the frame 9 and rotates the coating chamber 5 and the firing chamber 5, (6) to carry out a series of metal tube enamel coating operations. The driving means 10 for the tube rolling transfer means is an ultra low speed type geared motor or the like suitable for passing enamel glaze coated on the surface of the metal tube 1 in the coating chamber 5 without being scattered due to centrifugal force. Also, the roll moving means may use another apparatus or method other than the caterpillar.

도 4는 금속 튜브(1)가 가이드 바(7)를 타고 코팅챔버(5) 속을 굴러가는 동안 노즐(11)에서 분사되는 법랑 유약이 코팅되는 장면을 예시한 것이다. 금속 튜브(1)의 구름 이동은 궁극적으로 소성챔버(6)를 향한다.4 is a view showing an enamel glaze coated on the nozzle 11 while the metal tube 1 is being rolled in the coating chamber 5 on the guide bar 7. The rolling movement of the metal tube 1 ultimately leads to the firing chamber 6.

코팅챔버(5)를 통과하는 동안 금속 튜브(1)의 표면에 묻은 법랑 유약 중에서 잉여분은 상기 선행기술에 기술된 것 처럼 코팅브러시(또는 에어블로잉)에 의해 제거된다. Surplus of the enamel glaze on the surface of the metal tube 1 while passing through the coating chamber 5 is removed by a coating brush (or air blowing) as described in the prior art.

이상 설명한대로, 표면에 법랑 유약이 코팅된 금속 튜브가 가이드 바의 위를 굴러가면서 법랑 유약이 코팅되어 소성챔버로 등속으로 굴러 이송되면 법랑 유약이 가이드 바에 긁히지 않는다. 그래서 법랑코팅 품질이 개선되는 것이다.As described above, when the metal tube coated with the enamel glaze on the surface is rolled on the guide bar and the enamel glaze is coated and transported to the firing chamber at constant velocity, the enamel glaze is not scratched on the guide bar. Therefore, enamel coating quality is improved.

법랑 유약이 도포된 금속 튜브가 코팅챔버에서 소성챔버로 부드럽게 굴러 이송되므로 이 과정에서 금속 튜브는 물론 핀 튜브도 가이드 바와의 충동받을 만한 물리적 충돌이 없으므로 금속 튜브, 핀 튜브가 손상되는 일도 사라진다.Since the metal tube coated with enamel glaze is smoothly transferred from the coating chamber to the firing chamber, no damage is caused to the metal tube or the fin tube because there is no physical collision between the guide tube and the metal tube.

3: 튜브 대기장
4: 전처리 챔버
5: 코팅챔버
6: 소성챔버
7: 가이드 바
8: 튜브 굴림이송수단
10: (튜브 굴림이송수단용) 구동수단
3: Tube Waiting Chamber
4: Pretreatment chamber
5: Coating chamber
6: firing chamber
7: Guide bar
8: Tube rolling conveying means
10: (for tube rolling transfer means)

Claims (4)

법랑을 코팅할 금속 튜브를 일시 보관하는 튜브 대기장의 전방에 전처리 챔버, 코팅챔버 및 소성챔버가 일렬로 배치된 금속 튜브 법랑코팅장치에 있어서, 튜브 대기장에서 전처리 챔버와 코팅챔버 및 소성챔버의 출구까지를 직선으로 잇도록 부설된 법랑 유약 비친화성 가이드 바와, 튜브 대기장의 법랑코팅 대기 금속 튜브를 전처리 챔버와 코팅챔버 및 소성챔버를 향해 지속적으로 굴려서 이송하는 캐터필러형 튜브 굴림수단을 구비한 것을 특징으로 하는 금속 튜브용 법랑코팅장치.
A metal tube enamel coating apparatus in which a pretreatment chamber, a coating chamber and a firing chamber are arranged in a row in front of a tube atmosphere for temporarily storing a metal tube to be coated with enamel, An enamel glazing non-affinity guide bar attached to a straight line to guide the enamel coated atmospheric metal tube to the pretreatment chamber, the coating chamber, and the firing chamber, and a caterpillar tube rolling device for continuously transferring the tube to the pretreatment chamber, Enamel coating device for metal tubes.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101855071B1 (en) * 2017-11-22 2018-05-04 박병규 Vertical type transfer device for etching

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5689867A (en) 1979-11-26 1981-07-21 Poirier Michel Device for continuously executing coating on outside surface of mold material
JP2000118654A (en) * 1998-10-14 2000-04-25 Ise Chemicals Corp Gravity type cylindrical can transfer device
KR20040066303A (en) * 2003-01-17 2004-07-27 석 표 윤 Apparatus for painting pipe
KR200422080Y1 (en) 2006-05-12 2006-07-20 (주)한국이에스테크 Enamel coated tube for heat exchanger
KR20100021220A (en) * 2008-08-14 2010-02-24 박인식 Automatic pipe washing device
KR101074438B1 (en) 2009-03-13 2011-10-17 주식회사 유진 Method for coating a metal tube with enamel
KR20140081258A (en) * 2012-12-21 2014-07-01 주식회사 유진 Method for coating a metal tube with enamel and Equipment for carrying out the method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5689867A (en) 1979-11-26 1981-07-21 Poirier Michel Device for continuously executing coating on outside surface of mold material
JP2000118654A (en) * 1998-10-14 2000-04-25 Ise Chemicals Corp Gravity type cylindrical can transfer device
KR20040066303A (en) * 2003-01-17 2004-07-27 석 표 윤 Apparatus for painting pipe
KR200422080Y1 (en) 2006-05-12 2006-07-20 (주)한국이에스테크 Enamel coated tube for heat exchanger
KR20100021220A (en) * 2008-08-14 2010-02-24 박인식 Automatic pipe washing device
KR101074438B1 (en) 2009-03-13 2011-10-17 주식회사 유진 Method for coating a metal tube with enamel
KR20140081258A (en) * 2012-12-21 2014-07-01 주식회사 유진 Method for coating a metal tube with enamel and Equipment for carrying out the method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101855071B1 (en) * 2017-11-22 2018-05-04 박병규 Vertical type transfer device for etching

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