TWI402443B - Sealed ring - Google Patents

Description

密封環Sealing ring

本發明係關於一種密封裝置，特別是關於利用橡膠製成且表面具有金屬層之密封環。The present invention relates to a sealing device, and more particularly to a sealing ring made of rubber and having a metal layer on its surface.

習用密封環係應用於一流體處理裝置上，該流體處理裝置係具有一中空本體及一蓋體，該中空本體設有一通孔，該蓋體係結合於該通孔，藉此該中空本體可用以裝載高壓之腐蝕性流體，供工業或研究使用；而該習用密封環係由橡膠材質製成，且結合於該蓋體與該中空本體之間，進而可防止該腐蝕性流體經由該通孔與該蓋體間之空隙滲透至外界。然而，由於封閉該通孔時，橡膠材質製成之該習用密封環係易於與該腐蝕性流體接觸而被侵蝕，甚而與該腐蝕性流體產生互溶現象，因而降低該習用密封環之密封效果，並縮短該習用密封環之使用壽命。The conventional sealing ring system is applied to a fluid processing device having a hollow body and a cover body, the hollow body is provided with a through hole, and the cover system is coupled to the through hole, whereby the hollow body can be used Loading a high-pressure corrosive fluid for industrial or research use; and the conventional seal ring is made of a rubber material and is coupled between the cover body and the hollow body to prevent the corrosive fluid from passing through the through hole The gap between the covers penetrates to the outside. However, since the conventional sealing ring made of a rubber material is easily eroded by contact with the corrosive fluid when the through hole is closed, even the corrosive fluid is mutually miscible, thereby reducing the sealing effect of the conventional sealing ring. And shorten the service life of the conventional sealing ring.

相較於上述習用密封環，另一習用密封環係以金屬材質製成，其用以取代橡膠材質製成之密封環，可有效抵抗該腐蝕性流體之侵蝕，以改善前述橡膠製成之密封環容易被腐蝕之缺點；然而，金屬材質製成之該習用密封環卻因其所使用之金屬材質而存在另一缺點：由於一般金屬材質欠缺彈性恢復能力，因此金屬材質製成之該習用密封環無法重複使用，且不容易有效填補物件間之空隙，相較之下其密封效果遠差於橡膠材質製成之密封環，故金屬材質製成之該習用密封環無法於儲存或處理高壓流體時提供良好 之密封效果。Compared with the above-mentioned conventional sealing ring, another conventional sealing ring is made of a metal material, which is used to replace the sealing ring made of rubber material, and is effective against the corrosion of the corrosive fluid to improve the sealing of the rubber. The ring is easily corroded; however, the conventional sealing ring made of metal has another disadvantage due to the metal material used: since the metal material lacks elastic recovery capability, the conventional seal made of metal material The ring can not be reused, and it is not easy to effectively fill the gap between the objects. In contrast, the sealing effect is far worse than the sealing ring made of rubber material, so the conventional sealing ring made of metal material cannot store or process the high pressure fluid. Good time The sealing effect.

因此，習用橡膠材質及金屬材質之密封環於長期使用下，皆可能發生該中空本體內部之腐蝕性流體在高壓環境下經由該通孔與該蓋體間之空隙滲透至外界之情況，以至於造成使用者使用該流體處理裝置時存在相當大之危險性。Therefore, in the case of long-term use, the sealing ring of the rubber material and the metal material may cause the corrosive fluid inside the hollow body to penetrate into the outside through the gap between the through hole and the cover body under a high pressure environment, There is a considerable risk of causing the user to use the fluid treatment device.

本發明之主要目的係提供一種密封環，其係由滲有至少一種金屬微粒之高分子材質製成一環體，且該部分之金屬微粒係局部裸露於該環體表面，使一金屬層可緊密結合於該環體之表面，使得本發明具有提升該金屬層及環體間之結合可靠度。The main object of the present invention is to provide a sealing ring which is made of a polymer material impregnated with at least one kind of metal particles, and the metal particles of the portion are partially exposed on the surface of the ring body, so that a metal layer can be tightly closed. The invention is combined with the surface of the ring body to improve the bonding reliability between the metal layer and the ring body.

本發明之次要目的係提供一種密封環，其係利用一支撐件容設於該環體之一環槽內，進而提供該密封環足夠的支撐性，使得本發明具有提昇使用便利性之功效。A secondary object of the present invention is to provide a seal ring that is accommodated in a ring groove of the ring body by a support member, thereby providing sufficient support for the seal ring, so that the present invention has the effect of improving ease of use.

根據本發明之密封環，其包含一環體及一金屬層。該環體係由滲有至少一種金屬微粒之高分子材質製成，其中該部分之金屬微粒係局部裸露於該環體表面；該金屬層係利用物理沉積或化學沉積方式形成於該環體表面，藉由該金屬微粒提升該金屬層與該環體間之結合可靠度，使該金屬層保護該密封環不受到腐蝕性流體之侵蝕或溶解。A seal ring according to the present invention comprises a ring body and a metal layer. The ring system is made of a polymer material impregnated with at least one kind of metal particles, wherein the part of the metal particles is partially exposed on the surface of the ring body; the metal layer is formed on the surface of the ring body by physical deposition or chemical deposition. The metal particles enhance the bonding reliability between the metal layer and the ring body, so that the metal layer protects the sealing ring from corrosion or dissolution by corrosive fluids.

為讓本發明之上述及其他目的、特徵及優點能更明顯易懂，下文特舉本發明之較佳實施例，並配合所附圖式， 作詳細說明如下：請參照第1及2圖所示，本發明第一實施例之密封環係包含一環體1及一金屬層2。該環體1係由滲有至少一種金屬微粒之高分子材料製成，例如：橡膠、氫化丁晴膠〔HNBR〕、乙丙膠〔EPDM〕或氯丁膠〔CR〕等，且該金屬微粒11較佳係選自銀、銅、鎳或鋁等金屬，且其外形較佳係呈現粒狀或薄片狀。由於該高分子材料均具有較佳之彈性變形能力，使該環體1可因應外加壓力而產生形變。該部分金屬微粒11係局部裸露於該環體1表面，且該環體1之一側形成有一環槽12。The above and other objects, features, and advantages of the present invention will become more <RTIgt; The details are as follows: Referring to Figures 1 and 2, the seal ring of the first embodiment of the present invention comprises a ring body 1 and a metal layer 2. The ring body 1 is made of a polymer material impregnated with at least one kind of metal particles, such as rubber, hydrogenated nitrile rubber (HNBR), ethylene propylene rubber (EPDM) or neoprene (CR), and the like. 11 is preferably selected from the group consisting of metals such as silver, copper, nickel or aluminum, and its shape is preferably in the form of granules or flakes. Since the polymer material has a better elastic deformation ability, the ring body 1 can be deformed in response to an applied pressure. The portion of the metal particles 11 is partially exposed on the surface of the ring body 1, and a ring groove 12 is formed on one side of the ring body 1.

該金屬層2係為利用物理沉積〔PVD〕或化學沉積〔CVD〕方式形成且包覆於該環體1表面之金屬鍍層，例如以蒸鍍、濺鍍或電鍍等方式形成，其中該金屬層2之金屬材質較佳係選自化學活性較低之惰性金屬，例如：金、鉑、銀、銅及其合金等。該金屬層2用以保護該環體1，以避免腐蝕性流體直接接觸該環體1，造成該環體1之損壞。由於分散於該環體1表面之該金屬微粒11較容易與之金屬鍍層產生鍵結，使該金屬層2可緊密結合於該環體1之表面，提升其二者間之結合可靠度。The metal layer 2 is a metal plating layer formed by physical deposition (PVD) or chemical deposition (CVD) and coated on the surface of the ring body 1, for example, by vapor deposition, sputtering or electroplating, wherein the metal layer is formed. The metal material of 2 is preferably selected from inert metals having a low chemical activity, such as gold, platinum, silver, copper, and alloys thereof. The metal layer 2 serves to protect the ring body 1 from corrosive fluids directly contacting the ring body 1, causing damage to the ring body 1. Since the metal fine particles 11 dispersed on the surface of the ring body 1 are more likely to be bonded to the metal plating layer, the metal layer 2 can be tightly bonded to the surface of the ring body 1 to improve the bonding reliability therebetween.

請參照第3圖所示，本發明第一實施例之密封環係裝設於一流體處理裝置4。該流體處理裝置4包含一中空本體41、一通孔42及一蓋體43。該中空本體41係供容置一腐蝕性流體；該通孔42穿設於該中空本體41之壁面並連通該中空本體42之內部空間。本發明之密封環係卡合於該 蓋體43之一端，且該環槽12係選擇朝向該通孔42，以供該蓋體43透過該密封環與該通孔42緊密結合。Referring to FIG. 3, the seal ring of the first embodiment of the present invention is installed in a fluid processing device 4. The fluid processing device 4 includes a hollow body 41, a through hole 42 and a cover 43. The hollow body 41 is configured to receive a corrosive fluid; the through hole 42 is disposed through the wall surface of the hollow body 41 and communicates with the inner space of the hollow body 42. The sealing ring of the present invention is engaged in the One end of the cover body 43 and the annular groove 12 are selectively oriented toward the through hole 42 for the cover body 43 to be tightly coupled to the through hole 42 through the sealing ring.

請參照第4及5圖所示，當使用設有本發明第一實施例之密封環之流體處理裝置4時，可直接將該蓋體43螺合於與該通孔42。由於本發明之密封環係介於該通孔42與蓋體43之間，且該密封環之外周面係受擠壓而產生形變，使該蓋體43透過該密封環緊密結合於該通孔42，進而密封該中空本體41。Referring to Figures 4 and 5, when the fluid processing apparatus 4 provided with the seal ring of the first embodiment of the present invention is used, the cover 43 can be directly screwed into the through hole 42. Since the seal ring of the present invention is interposed between the through hole 42 and the cover body 43, and the outer peripheral surface of the seal ring is deformed by deformation, the cover body 43 is tightly coupled to the through hole through the seal ring. 42, the hollow body 41 is sealed.

當該密封環受到擠壓時，由於該環體1係由具有彈性之高分子材質製成，且該金屬層2之厚度較薄，使得該密封環可產生形變；當擠壓該密封環之外力消失時，藉由該環體1之彈性恢復力，即可使得該密封環恢復為原來之形狀。因此，相較於習用以金屬材質製成之密封環缺乏彈性且受到擠壓變形後即無法恢復原來之形狀，本發明之密封環係可以重複使用，故其確實可改善習用以金屬材質製成之密封環密封性不良及無法重複使用之缺點。此外，該金屬層2可緊密結合於該環體1之表面以保護該環體1，相較於習用僅以橡膠材質製成之密封環容易受到腐蝕性流體之侵蝕或溶解，本發明之密封環確實可改善習用以橡膠材質製成之密封環無法抗腐蝕之缺點。When the sealing ring is pressed, since the ring body 1 is made of a polymer material having elasticity, and the thickness of the metal layer 2 is thin, the sealing ring can be deformed; when the sealing ring is pressed When the external force disappears, the sealing ring can be restored to its original shape by the elastic restoring force of the ring body 1. Therefore, the seal ring made of the metal material is incapable of being restored to the original shape after being deformed by extrusion, and the seal ring of the present invention can be reused, so that it can be improved by using a metal material. The seal ring has poor sealing properties and cannot be reused. In addition, the metal layer 2 can be tightly bonded to the surface of the ring body 1 to protect the ring body 1. The sealing ring made of only rubber material is easily corroded or dissolved by corrosive fluids, and the sealing of the present invention. The ring does improve the drawbacks of seal rings made of rubber materials that are not resistant to corrosion.

請參照第6圖所示，其揭示本發明第二實施例之密封環。相較於第一實施例，本發明第二實施例之密封環係進一步包含一支撐件3，該支撐件3係容置於該環槽12內並抵撐該環槽12之內表面，該支撐件3係由數個U形片體 31沿該環槽12串接組成，且各該U形片體31係對應於該環槽12截面之形狀。藉此，該支撐件3可提供該環體1足夠的支撐性，避免該環體1受到外力壓迫時過度扭曲變形而降低氣密性，同時亦可方便使用者對應裝設於欲密封處。Referring to Figure 6, there is disclosed a seal ring of a second embodiment of the present invention. Compared with the first embodiment, the sealing ring system of the second embodiment of the present invention further includes a supporting member 3 that is received in the annular groove 12 and abuts against the inner surface of the annular groove 12, The support member 3 is composed of a plurality of U-shaped sheets 31 is formed in series along the annular groove 12, and each of the U-shaped segments 31 corresponds to the shape of the cross section of the annular groove 12. Thereby, the support member 3 can provide sufficient support for the ring body 1 to prevent the ring body 1 from being excessively twisted and deformed when pressed by an external force to reduce airtightness, and at the same time, it is convenient for the user to be correspondingly installed at the place to be sealed.

如上所述，第1圖之本發明藉由該環體1由滲有至少一種金屬微粒之高分子材料製成，使局部裸露於該環體1表面之金屬微粒與該金屬層2形成鍵結，其確實可提昇該金屬層2及環體1間之結合可靠度，同時在保有彈性恢復力之前提下，使該密封環具有抗腐蝕及重複使用之能力。此外，利用該支撐件3容設於該環體1之環槽12內，可提供該密封環之支撐性，以便使該密封環具有額外的支撐性，而提昇密封環之使用便利性。As described above, the present invention in FIG. 1 is formed by the polymer material in which at least one metal particle is infiltrated by the ring body 1, so that the metal particles partially exposed on the surface of the ring body 1 are bonded to the metal layer 2. It can indeed improve the bonding reliability between the metal layer 2 and the ring body 1, and at the same time, it can be lifted before the elastic restoring force is maintained, so that the sealing ring has the ability to resist corrosion and reuse. In addition, the support member 3 is accommodated in the annular groove 12 of the ring body 1, and the support of the sealing ring can be provided, so that the sealing ring has additional support, and the use of the sealing ring is improved.

雖然本發明已利用上述較佳實施例揭示，然其並非用以限定本發明，任何熟習此技藝者在不脫離本發明之精神和範圍之內，相對上述實施例進行各種更動與修改仍屬本發明所保護之技術範疇，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

1‧‧‧環體1‧‧‧ ring body

11‧‧‧金屬微粒11‧‧‧Metal particles

12‧‧‧環槽12‧‧‧ Ring groove

2‧‧‧金屬層2‧‧‧metal layer

3‧‧‧支撐件3‧‧‧Support

31‧‧‧片體31‧‧‧Sheet

4‧‧‧流體處理裝置4‧‧‧ Fluid handling unit

41‧‧‧中空本體41‧‧‧ hollow body

42‧‧‧通孔42‧‧‧through hole

43‧‧‧蓋體43‧‧‧ Cover

第1圖：本發明第一實施例之密封環之立體圖。Fig. 1 is a perspective view of a seal ring of a first embodiment of the present invention.

第2圖：本發明第一實施例之密封環之剖視圖。Fig. 2 is a cross-sectional view showing a seal ring of a first embodiment of the present invention.

第3圖：本發明第一實施例之密封環組合於一流體處理裝置之示意圖。Fig. 3 is a schematic view showing the combination of the seal ring of the first embodiment of the present invention in a fluid processing apparatus.

第4圖：設有本發明第一實施例之密封環之流體處理裝置的使用示意圖。Fig. 4 is a schematic view showing the use of a fluid processing apparatus provided with a seal ring of the first embodiment of the present invention.

第5圖：設有本發明第一實施例之密封環之流體處理裝置的局部放大圖。Fig. 5 is a partially enlarged view showing a fluid processing apparatus provided with a seal ring of the first embodiment of the present invention.

第6圖：本發明第二實施例之密封環之分解立體圖。Fig. 6 is an exploded perspective view showing the seal ring of the second embodiment of the present invention.

1‧‧‧環體1‧‧‧ ring body

11‧‧‧金屬微粒11‧‧‧Metal particles

12‧‧‧環槽12‧‧‧ Ring groove

2‧‧‧金屬層2‧‧‧metal layer

Claims (5)

一種密封環，其包含：一環體，係由滲有至少一種金屬微粒之高分子材質製成，且該部分之金屬微粒係局部裸露於該環體之表面，該環體之一側形成一環槽；一支撐件，該支撐件容置於該環槽內，且抵撐該環槽之內表面；及一金屬層，係包覆於該環體之表面。 A sealing ring comprising: a ring body made of a polymer material impregnated with at least one metal particle, and the metal particles of the portion are partially exposed on a surface of the ring body, and a ring groove is formed on one side of the ring body a support member, the support member is received in the annular groove and abuts against the inner surface of the annular groove; and a metal layer is coated on the surface of the annular body. 依申請專利範圍第1項所述之密封環，其中該支撐件係由數個U形片體沿該環槽串接組成。 The seal ring according to claim 1, wherein the support member is composed of a plurality of U-shaped sheets which are connected in series along the ring groove. 依申請專利範圍第1項所述之密封環，其中該金屬層之材質為惰性金屬，該惰性金屬係選自金、鉑、銀、銅或其合金。 The sealing ring according to claim 1, wherein the metal layer is made of an inert metal selected from the group consisting of gold, platinum, silver, copper or alloys thereof. 依申請專利範圍第1項所述之密封環，其中該高分子材質係選自橡膠、氫化丁晴膠、乙丙膠或氯丁膠。 The sealing ring according to claim 1, wherein the polymer material is selected from the group consisting of rubber, hydrogenated nitrile rubber, ethylene propylene rubber or neoprene. 依申請專利範圍第1項所述之密封環，其中該金屬微粒係選自銀、銅、鎳或鋁。 The seal ring of claim 1, wherein the metal particles are selected from the group consisting of silver, copper, nickel or aluminum.