KR100563233B1 - Surface coating method of valve disk - Google Patents

Surface coating method of valve disk Download PDF

Info

Publication number
KR100563233B1
KR100563233B1 KR1020050050211A KR20050050211A KR100563233B1 KR 100563233 B1 KR100563233 B1 KR 100563233B1 KR 1020050050211 A KR1020050050211 A KR 1020050050211A KR 20050050211 A KR20050050211 A KR 20050050211A KR 100563233 B1 KR100563233 B1 KR 100563233B1
Authority
KR
South Korea
Prior art keywords
insertion rod
valve disc
valve
stem
hole
Prior art date
Application number
KR1020050050211A
Other languages
Korean (ko)
Inventor
박동범
Original Assignee
박동범
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 박동범 filed Critical 박동범
Priority to KR1020050050211A priority Critical patent/KR100563233B1/en
Application granted granted Critical
Publication of KR100563233B1 publication Critical patent/KR100563233B1/en

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336Coating a portion of the article, e.g. the edge of the article
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/1701Component parts, details or accessories; Auxiliary operations using a particular environment during moulding, e.g. moisture-free or dust-free
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/1753Cleaning or purging, e.g. of the injection unit
    • B29C45/1755Means for receiving or discharging purged material; Purge shields
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/748Machines or parts thereof not otherwise provided for
    • B29L2031/7506Valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

밸브디스크의 스템삽입공 표면전체를 완전코팅하여 코팅이 미처리된 부분이 물에 의해 부식되는 것을 방지할 수 있는 밸브디스크의 표면코팅방법이 개시된다. 개시된 표면코팅방법은 밸브디스크의 스템삽입공에 외주면에 다수의 공기배출공이 형성되고 일측이 폐쇄된 삽입봉을 삽입한 후, 상기 삽입봉을 지지판이 배치된 하부금형 중앙 양단의 안착공에 안착시켜 상부금형을 덮은 다음, 상기 삽입봉에 장착된 흡입노즐을 통해 공기를 흡입시켜, 상부금형의 주입구를 통해 주입된 코팅액이 밸브디스크 전 표면에 코팅되게 하는 것을 특징으로 한다.Disclosed is a method for surface coating of a valve disc that can completely coat the entire stem insertion hole surface of the valve disc to prevent corrosion of the uncoated portion by water. In the disclosed surface coating method, a plurality of air discharge holes are formed on the outer circumferential surface of the stem insertion hole of the valve disc, and one side is inserted into the insertion rod, and then the insertion rod is seated on the seating holes at both ends of the lower mold center where the support plate is disposed. After covering the upper mold, the air is sucked through the suction nozzle mounted on the insertion rod, it characterized in that the coating liquid injected through the injection hole of the upper mold is coated on the entire surface of the valve disk.

밸브디스크, 스템, 스템삽입공, 삽입봉, 금형 Valve disc, stem, stem insert hole, insert rod, mold

Description

밸브디스크의 표면코팅방법{SURFACE COATING METHOD OF VALVE DISK}SURFACE COATING METHOD OF VALVE DISK}

도1은 일반적인 밸브디스크의 사시도이며,1 is a perspective view of a general valve disc;

도2는 종래의 밸브디스크의 표면코팅방법에 설명하기 위한 장치의 분리 사시도이며,Figure 2 is an exploded perspective view of the apparatus for explaining the surface coating method of a conventional valve disc,

도3은 도2의 결합 횡단면도이며,3 is a combined cross-sectional view of FIG.

도4는 도2의 결합 종단면도이며,4 is a longitudinal cross-sectional view of FIG.

도5는 본 발명에 따른 밸브디스크의 표면 코팅방법을 실현하기 위한 장치의 분리 사시도이며, 5 is an exploded perspective view of an apparatus for realizing a method for coating a surface of a valve disc according to the present invention;

도6는 본 발명에 따른 밸브디스크의 표면 코팅방법을 실현하기 위한 장치의 결합사시도이며, 6 is a combined perspective view of a device for realizing a method for coating a surface of a valve disc according to the present invention;

도7은 본 발명에 따른 밸브디스크의 표면 코팅방법에 따라 밸브디스크의 스템삽입공의 표면이 전체적으로 코팅되는 것을 설명하기 위한 도6의 종단면도이다.7 is a longitudinal cross-sectional view of FIG. 6 for explaining that the surface of the stem insertion hole of the valve disc is coated as a whole according to the surface coating method of the valve disc according to the present invention.

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

110: 밸브디스크 130: 삽입봉110: valve disc 130: insertion rod

131: 공기배출공 140: 하부금형131: air discharge hole 140: lower mold

150: 상부금형150: upper mold

본 발명은 밸브디스크의 표면코팅방법에 관한 것으로, 특히 밸브디스크의 스템삽입공 표면전체를 완전코팅하여 코팅이 미처리된 부분이 물에 의해 부식되는 것을 방지할 수 있는 밸브디스크의 표면코팅방법에 관한 것이다.The present invention relates to a surface coating method of the valve disk, and more particularly, to a surface coating method of the valve disk which can prevent the uncoated portion from being corroded by water by completely coating the entire surface of the stem insertion hole of the valve disk. will be.

일반적으로, 유체가 유동하는 다양한 종류의 관에는 유체의 흐름을 선택적으로 차단하기 위한 제수밸브(GATE VALVE)가 마련된다. 이 제수밸브는 상하 이동하는 밸브디스크에 의해 유로를 도통하거나 차단된다.Generally, various types of pipes through which a fluid flows are provided with a GATE VALVE for selectively blocking the flow of the fluid. The dilution valve conducts or shuts off the flow path by the valve disk moving up and down.

도1에는 이러한 제수밸브내에 설치되어 유로를 선택적으로 차단하는 종래의 일반적 밸브디스크(10)가 도시되어 있는 데, 이를 참고하면 밸브디스크(10)는 전체적으로 대략 원형형상으로, 중심에는 제수밸브의 스템(21)이 삽입되는 스템삽입공(11)이 관통 형성되어 있으며, 상단에는 스템(21)을 상하이동하는 상하이동너트(22)에 결합되는 결합턱(12)이 형성되며, 측면에는 미도시된 제수밸브의 디스크시트 측면에 안내되는 가이드편(13)이 형성되어 있다. 이와 같이 구성되어, 스템(21)을 회전시키면 상하이동너트(22)가 스템(21)을 따라 상하로 이동하게 되고, 이 와 연동하여 상기 상하이동너트(22)와 결합된 밸브디스크(10)가 상하로 이동하면서 제주밸브의 유로를 선택적으로 차단하게 된다.1 shows a conventional general valve disc 10 installed in such a dilution valve to selectively block the flow path. Referring to this, the valve disc 10 is generally circular in shape, and the stem of the distillation valve is formed at the center thereof. A stem insertion hole 11 into which the 21 is inserted is formed, and a coupling jaw 12 is formed at the upper end thereof to be coupled to the shandong nut 22 which shanks the stem 21. The guide piece 13 which is guided to the side of the disk seat of the divided valve is formed. When the stem 21 is rotated as described above, the shank copper nut 22 moves up and down along the stem 21, and the valve disk 10 coupled with the shank copper nut 22 is interlocked with the shank copper nut 22. As it moves up and down, it blocks the flow path of the Jeju valve selectively.

한편, 상기와 같은 밸브디스크(10)는 유로상에 위치하기 때문에 물에 의한 부식이 방지되어야 한다. 따라서, 물에 부식되지 않는 스테인레스 재질로 제조되기도 하지만, 고가이기 때문에 일반적으로는 밸브디스크를 주철로 제조한 후 그 표면을 고무재질로 코팅처리한다.On the other hand, since the valve disk 10 as described above is located on the flow path should be prevented by water corrosion. Therefore, although it is made of a stainless material that does not corrode in water, it is expensive, and in general, the valve disc is made of cast iron, and then the surface thereof is coated with a rubber material.

여기서, 후자, 즉 밸브디스크에 고무재질을 코팅처리하는 방법을 살펴보면, 종래에는 도2에 도시된 바와 같이, 밸브디스크의 스템삽입공(11)에 삽입봉(30)을 삽입시킨 후, 삽입봉(30)을 하부금형(40)의 중앙양단 안착공(41)에 안착시킨 후 상부금형(50)을 덮은 후 주입구(51)를 통해 고무재질의 코팅액을 주입하였다. 그러면 도3에 도시된 바와 같이 코팅액은 금형내면과 밸브디스크 표면 사이의 캐비티 공간(C)에 충진되어 밸브디스크 표면에 코팅액이 코팅되었다. 여기서, 미설명한 참조번호 14은 코팅액과 동일재질의 지지판(14)으로, 삽입봉(30)의 축이 스템삽입공(11)의 축과 동심원상에 있도록 밸브디스크(10)가 하부금형(40)에서 소정간격 떠 있게 하는 역할을 하며 주입된 코팅액과 함께 밸브디스크 표면을 코팅하게 된다.Here, looking at the latter, that is, the method of coating the rubber material on the valve disk, conventionally, as shown in Figure 2, after inserting the insertion rod 30 in the stem insertion hole 11 of the valve disk, the insertion rod (30) was seated in the center end seating hole 41 of the lower mold 40, and then covered with the upper mold 50, the injection of the coating material of the rubber material through the inlet (51). Then, as shown in FIG. 3, the coating liquid was filled in the cavity space C between the mold inner surface and the valve disk surface, and the coating liquid was coated on the valve disk surface. Here, reference numeral 14, which is not described, is a support plate 14 of the same material as the coating liquid, and the valve disc 10 has a lower mold 40 such that the shaft of the insertion rod 30 is concentric with the shaft of the stem insertion hole 11. ) And the surface of the valve disc is coated with the injected coating liquid.

하지만, 상기와 같은 종래의 밸브디스크 코팅방법은 특히 밸브디스크의 스템삽입공(11)의 표면이 전체적으로 코팅되지 않아, 코팅이 처리되지 않는 부분이 물 에 부식되어 녹이 슬어 밸브내를 유동하는 물을 오염시키는 문제점이 있었다. However, in the conventional valve disk coating method as described above, the surface of the stem insertion hole 11 of the valve disk is not coated as a whole, so that the portion not coated is corroded to water, rusted, and water flowing in the valve. There was a problem of contamination.

이를 도4를 참고하여 구체적으로 설명하면, 주입구(51)를 통해 주입된 코팅액은 캐비티(C) 공간 사방으로 확산되다가 스템삽입공(11)과 삽입봉(30) 사이의 캐비티(C`) 공간을 양단에서 중심으로 유동하게 된다. 이 때, 코팅액이 중심으로 유동하면 상기 스템삽입공과 삽입봉 사이의 캐비티(C`) 공간에 존재하는 공기는 밀려오는 코팅액에 의해 계속 압축되게 되고, 결국 공기가 더 이상 압축되지 못하는 어느 한 지점에서는 압축공기로 인해 코팅되지 못하게 되는 문제점이 있고, 이에 따라 코팅되지 않은 부분은 물과의 접촉에 노출되어 부식되게 된다.Referring to FIG. 4, the coating liquid injected through the injection hole 51 diffuses in all directions of the cavity C space, and then the cavity C` space between the stem insertion hole 11 and the insertion rod 30. Will flow from both ends to the center. At this time, when the coating liquid flows to the center, air existing in the cavity (C`) space between the stem insertion hole and the insertion rod is continuously compressed by the coating liquid that is pushed, and finally, at any point where the air is no longer compressed. There is a problem that can not be coated due to the compressed air, so that the uncoated portion is exposed to contact with water to corrode.

본 발명은 상기 문제점을 해결하기 위해 안출된 것으로, 본 발명의 목적은 밸브디스크의 스템삽입공 표면 전체를 완전코팅하여 코팅이 미처리된 부분이 물에 의해 부식되는 것을 방지할 수 있는 밸브디스크의 코팅방법을 제공하는 것이다.The present invention has been made to solve the above problems, an object of the present invention is to completely coat the entire surface of the stem insertion hole of the valve disk coating of the valve disk that can prevent the uncoated portion is corroded by water To provide a way.

상기 본 발명의 목적은, 밸브디스크의 스템삽입공에 외주면에 다수의 공기배출공이 형성되고 일측이 폐쇄된 삽입봉을 삽입한 후, 상기 삽입봉을 지지판이 배치된 하부금형 중앙 양단의 안착공에 안착시켜 상부금형을 덮은 다음, 상기 삽입봉의 일측에 장착된 흡입노즐을 통해 공기를 흡입시켜, 상부금형의 주입구를 통해 주입된 코팅액이 밸브디스크 전 표면에 코팅되게 하는 밸브디스크의 표면 코팅방법을 제공함으로써 달성될 수 있다.An object of the present invention, after inserting a plurality of air discharge hole is formed on the outer peripheral surface of the stem insertion hole of the valve disk and one side of the insertion rod is closed, the insertion rod in the seat hole of the center of both ends of the lower mold It seats to cover the upper mold, and then sucks air through the suction nozzle mounted on one side of the insertion rod, to provide a surface coating method of the valve disk to the coating liquid injected through the injection hole of the upper mold is coated on the entire surface of the valve disk This can be achieved by.

상술한 본 발명의 목적은 첨부된 도면을 참조하여 후술되는 본 발명의 바람직한 실시예로부터 더욱 명확해질 것이다.The object of the present invention described above will become more apparent from the preferred embodiment of the present invention described below with reference to the accompanying drawings.

이하, 첨부된 도면을 참고하여 본 발명을 보다 상세하게 설명한다. 첨부된 도5는 본 발명에 따른 밸브디스크의 표면 코팅방법을 실현하기 위한 장치의 분리 사시도이며, 도6는 본 발명에 따른 밸브디스크의 표면 코팅방법을 실현하기 위한 장치의 결합사시도이며, 도7은 본 발명에 따른 밸브디스크의 표면 코팅방법에 따라 밸브디스크의 스템삽입공의 표면이 전체적으로 코팅되는 것을 설명하기 위한 도6의 종단면도이다.Hereinafter, with reference to the accompanying drawings will be described in detail the present invention. 5 is an exploded perspective view of the apparatus for realizing the surface coating method of the valve disk according to the present invention, and FIG. 6 is a combined perspective view of the apparatus for realizing the surface coating method of the valve disk according to the present invention. 6 is a longitudinal cross-sectional view of FIG. 6 for explaining that the surface of the stem insertion hole of the valve disc is coated as a whole according to the surface coating method of the valve disc according to the present invention.

본 발명에 따른 밸브디스크의 표면 코팅방법은 먼저 밸브디스크(110)의 스템삽입공(111)에 삽입봉(130)을 삽입시킨다. 여기서, 상기 밸브디스크(110)의 형상은 본 발명의 본질과는 무관한 것이어서 종래의 분야에서 서술한 형상 내지 구성으로만 한정되지 않음은 당연하며, 밸브디스크가 설치되는 제수밸브의 역할이나 기능 및 그 형태에 따라 다양하게 변경, 변형될 수 있음은 물론이다. In the surface coating method of the valve disk according to the present invention, the insertion rod 130 is first inserted into the stem insertion hole 111 of the valve disk 110. Here, the shape of the valve disk 110 is irrelevant to the nature of the present invention is not limited only to the shape or configuration described in the prior art, the role or function of the water separator valve is installed valve valve and Of course, it can be changed and modified in accordance with the form.

한편, 상기 스템삽입공(111)에 삽입되는 삽입봉(130)에는 다수의 공기배출공 (131)이 형성되어 있다. 상기 공기배출공(131)은, 후술하겠지만, 스템삽입공 표면과 삽입봉의 외면 사이의 캐비티 공간에 존재하는 공기가 코팅액의 유동에 따라 압축되면서 외부로 배출될 수 있는 배출공이다. 여기서, 상기 공기배출공(131)은 그 직경이 너무 크면 다량이 코팅액이 배출되어 문제가 발생하므로, 대략 2mm 정도의 직경으로 형성되는 것이 바람직하다. 또한, 상기 삽입봉은 일단이 폐쇄되어 있고 타단은 개방되어 있으며, 이 개방단에는 흡입기(160)에 연결된 흡입노즐(161)이 장착되어 있다.On the other hand, the insertion rod 130 is inserted into the stem insertion hole 111 is formed with a plurality of air discharge holes (131). The air discharge hole 131, which will be described later, is a discharge hole that can be discharged to the outside while the air present in the cavity space between the stem insertion hole surface and the outer surface of the insertion rod is compressed in accordance with the flow of the coating liquid. Here, since the air discharge hole 131 is too large in diameter and a large amount of the coating liquid is discharged, a problem occurs, and the air discharge hole 131 is preferably formed to a diameter of about 2 mm. In addition, one end of the insertion rod is closed and the other end is open, and the opening end is equipped with a suction nozzle 161 connected to the inhaler 160.

밸브디스크의 스템삽입공(111)에 삽입봉(130)이 삽입되면 삽입봉 양단을 하부금형(140)의 안착공(141)에 안착시킨다. 여기서, 종래와 같이 하부금형의 상단에는 코팅액과 동일재질의 지지판(114)이 배치되어 삽입봉(130)의 축이 스템삽입공(111)의 축과 동심원상에 있도록 밸브디스크(110)가 하부금형(140)에서 소정간격 떠 있게 하는 역할을 한다. 또한, 상기 하부금형의 상면은 상기 밸브디스크 저면과 대응되는 형상으로 형성됨은 당연하다. When the insertion rod 130 is inserted into the stem insertion hole 111 of the valve disc, both ends of the insertion rod are seated in the seating holes 141 of the lower mold 140. Here, as in the prior art, the support plate 114 of the same material as the coating liquid is disposed on the upper end of the lower mold so that the valve disc 110 is lower so that the shaft of the insertion rod 130 is concentric with the shaft of the stem insertion hole 111. The mold 140 serves to float a predetermined interval. In addition, it is obvious that the upper surface of the lower mold is formed in a shape corresponding to the bottom surface of the valve disc.

삽입봉 양단 하부금형의 안착공(141)에 안착되면 상부금형(150)을 덮는다. 상기 상부금형의 저면 역시 상기 밸브디스크 저면과 대응되는 형상으로 형성되어 있으며, 상면에는 코팅액을 주입할 수 있는 주입구(151)가 형성되어 있다.When the rod is seated in the mounting hole 141 of the lower mold both ends cover the upper mold 150. The bottom surface of the upper mold is also formed in a shape corresponding to the bottom surface of the valve disk, the upper surface is formed with an injection hole 151 for injecting the coating liquid.

이와 같이 상부금형(150)이 하부금형(140)을 덮게 되면 상부금형의 주입구 (151)를 통해 코팅액을 주입하게 된다. 여기서, 상기 코팅액은 종래와 같이 고무재질, 바람직하게는 에틸렌프로필렌고무(ethylene propylene rubber: EPDM)의 용융액이면 바람직하지만, 이에 한정되지 않고 폴리우레탄 용융액이어도 무방하다. As such, when the upper mold 150 covers the lower mold 140, the coating liquid is injected through the injection hole 151 of the upper mold. Here, the coating solution is preferably a melt of rubber material, preferably ethylene propylene rubber (EPDM), but is not limited thereto, and may be a polyurethane melt.

주입된 코팅액은 도3에 도시된 바와 같이 금형내면과 밸브디스크 표면 사이의 캐비티(C) 공간을 충진하게 된다. 물론 스템삽입공과 삽입봉 사이의 캐비티(C`) 공간에도 코팅액은 양단을 통해 중심측으로 충진되게 된다. The injected coating liquid fills the cavity C space between the mold inner surface and the valve disk surface as shown in FIG. Of course, the coating liquid is filled in the cavity (C`) space between the stem insertion hole and the insertion rod to the center side through both ends.

여기서, 본 발명에 따르면, 도7에 도시된 바와 같이 상기 삽입봉(130)의 일측에 장착된 흡입노즐(161)을 통해 삽입봉 내부 공기를 소정의 압력으로 외부로 배출시키게 된다. 그러면, 삽입봉(130)의 내부공기가 외부로 배출되게 되고, 더불어 스템삽입공(111)과 삽입봉(130) 사이의 캐비티(C`) 공간의 공기도 상기 삽입봉(130)에 형성된 공기배출공(131)을 통해 외부로 배출되게 된다. 이에 따라, 스템삽입공(111)과 삽입봉(130) 사이의 캐비티(C`) 공간에는 공기가 잔존하지 않고 코팅액이 상기 캐비티(C`) 공간에 완전 충진되어, 스템삽입공 내부 전체 표면이 완전코팅될 수 있게 된다.Here, according to the present invention, as shown in Figure 7 through the suction nozzle 161 mounted on one side of the insertion rod 130 to discharge the air inside the insertion rod to a predetermined pressure to the outside. Then, the internal air of the insertion rod 130 is discharged to the outside, and the air in the cavity (C`) space between the stem insertion hole 111 and the insertion rod 130 is also formed in the insertion rod 130 It is discharged to the outside through the discharge hole (131). Accordingly, air does not remain in the cavity C` space between the stem insertion hole 111 and the insertion rod 130, and the coating liquid is completely filled in the cavity C` space, so that the entire surface of the stem insertion hole is filled. It can be completely coated.

한편, 바람직하게는 상기 삽입봉의 흡입노즐이 장착되는 부분에는 여과망(132)이 설치되는 것이 바람직한 데, 이는 공기배출공(131)을 통해 공기 뿐만 아니라 소량의 코팅액도 배출될 수 있는 데, 이러한 코팅액 슬러지가 흡입노즐(161)을 통해 흡입기(160)내로 유입되지 않도록 하기 위함이다.On the other hand, preferably, the filter net 132 is preferably installed at the portion where the suction nozzle of the insertion rod is mounted, which may discharge not only air but also a small amount of the coating liquid through the air discharge hole 131. This is to prevent the sludge from flowing into the inhaler 160 through the suction nozzle 161.

이상에서 설명한 바와 같이, 본 발명에 따른 밸브디스크 표면코팅방법에 의하면, 밸브디스크의 스템삽입공 표면 전체가 완전코팅되기 때문에 밸브디스크가 코팅이 미처리된 부분에 의해 물에 부식되는 것을 방지할 수 있다는 효과가 있다.As described above, according to the valve disc surface coating method according to the present invention, since the entire stem insertion hole surface of the valve disc is completely coated, the valve disc can be prevented from being corroded to water by the untreated portion. It works.

Claims (2)

밸브디스크의 스템삽입공에 외주면에 다수의 공기배출공이 형성되고 일측이 폐쇄된 삽입봉을 삽입한 후, 상기 삽입봉을 지지판이 배치된 하부금형 중앙 양단의 안착공에 안착시켜 상부금형을 덮은 다음, 상기 삽입봉에 장착된 흡입노즐을 통해 공기를 흡입시켜, 상부금형의 주입구를 통해 주입된 코팅액이 밸브디스크 전 표면에 코팅되게 하는 밸브디스크의 표면 코팅방법. After inserting a plurality of air discharge holes formed on the outer circumferential surface of the stem insertion hole of the valve disc and closing one side of the insertion rod, the insertion rod is seated on the seating holes at both ends of the lower mold center where the support plate is disposed to cover the upper mold. The surface coating method of the valve disc to suck the air through the suction nozzle mounted to the insertion rod, the coating liquid injected through the injection hole of the upper mold is coated on the entire surface of the valve disc. 제1항에 있어서,The method of claim 1, 상기 삽입봉의 흡입노즐이 장착되는 부분에는 공기배출공을 통해 배출되는 코팅액 슬러지가 여과될 수 있는 여과망을 형성한 것을 특징으로 하는 밸브디스크의 표면 코팅방법.The surface coating method of the valve disk, characterized in that formed in the portion of the suction nozzle of the insertion rod is equipped with a filtering network to filter the sludge of the coating liquid discharged through the air discharge hole.
KR1020050050211A 2005-06-13 2005-06-13 Surface coating method of valve disk KR100563233B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020050050211A KR100563233B1 (en) 2005-06-13 2005-06-13 Surface coating method of valve disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020050050211A KR100563233B1 (en) 2005-06-13 2005-06-13 Surface coating method of valve disk

Publications (1)

Publication Number Publication Date
KR100563233B1 true KR100563233B1 (en) 2006-03-21

Family

ID=37179808

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020050050211A KR100563233B1 (en) 2005-06-13 2005-06-13 Surface coating method of valve disk

Country Status (1)

Country Link
KR (1) KR100563233B1 (en)

Similar Documents

Publication Publication Date Title
FI108875B (en) Valve for a wash basin fitted with a built-in water trap
KR100563233B1 (en) Surface coating method of valve disk
KR20110123174A (en) Overflow for intercepting ill-smelling
US6122775A (en) Drain valve assembly and method of cleansing
KR100510105B1 (en) Air elimination valve for water gate valve
JP3897619B2 (en) Automatic water supply device
JP2004068959A (en) Air valve
KR100809647B1 (en) 3-Way Ball Valve
JP2008255660A (en) Toilet bowl flushing device
KR100830594B1 (en) Floating device for quick air valve
KR102236012B1 (en) A drain valve system in the valve chamber at the end of the pipe
JP2003027554A (en) Toilet bowl cleaning tank device
KR100902279B1 (en) Valve open-close device
JP3009300U (en) Underdrain drainage gate
JP2007046740A (en) Float type drain trap
RU2414815C2 (en) Electronic pulsator for milking machines
KR200283239Y1 (en) System control water level
JP2936325B1 (en) Pollution prevention fitting for floor drain funnel
JP5572483B2 (en) Air valve
KR101692013B1 (en) Apparatus for opening and shutting waterway of washstand
JP6657519B2 (en) Air valve
JPS61122339A (en) Apparatus for washing toilet bowl
JPH0563391B2 (en)
JP5411755B2 (en) Lever float drain trap
JPS6026805Y2 (en) On-off valve

Legal Events

Date Code Title Description
A201 Request for examination
A302 Request for accelerated examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130315

Year of fee payment: 8

FPAY Annual fee payment

Payment date: 20140317

Year of fee payment: 9

FPAY Annual fee payment

Payment date: 20150316

Year of fee payment: 10

FPAY Annual fee payment

Payment date: 20160311

Year of fee payment: 11

FPAY Annual fee payment

Payment date: 20170313

Year of fee payment: 12

FPAY Annual fee payment

Payment date: 20180406

Year of fee payment: 13

FPAY Annual fee payment

Payment date: 20190314

Year of fee payment: 14

FPAY Annual fee payment

Payment date: 20200305

Year of fee payment: 15