WO2016013628A1 - メカニカルシール、遊動環 - Google Patents
メカニカルシール、遊動環 Download PDFInfo
- Publication number
- WO2016013628A1 WO2016013628A1 PCT/JP2015/071015 JP2015071015W WO2016013628A1 WO 2016013628 A1 WO2016013628 A1 WO 2016013628A1 JP 2015071015 W JP2015071015 W JP 2015071015W WO 2016013628 A1 WO2016013628 A1 WO 2016013628A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ring
- sliding
- carbon fiber
- silicon carbide
- mechanical seal
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
Images
Classifications
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3464—Mounting of the seal
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3464—Mounting of the seal
- F16J15/3472—Means for centering or aligning the contacting faces
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3496—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member use of special materials
Definitions
- the present invention relates to a mechanical seal using an idle ring and an idle ring.
- a mechanical seal has a configuration in which an idle ring (seal ring) is provided between a rotating ring that rotates together with a rotating shaft and a fixed ring that is fixed to a housing (for example, Patent Document 1).
- the idle ring slides with the rotary ring on one of the end faces in the axial direction of the rotary shaft and contacts the fixed ring on the other side, but is not fixed to any member. Therefore, the idle ring has a gap in the axial direction of the rotating shaft between the rotating ring and the fixed ring, and moves relative to the rotating ring and the fixed ring in the axial direction.
- silicon carbide having a high Young's modulus
- SiC silicon carbide
- the sliding surface width is small and it is difficult to form a fluid pool on the surface, and the material of the rotating ring on the other side of sliding is also silicon carbide. In some cases, burn-in is likely to occur.
- an object of the present invention is to improve the sealing performance between the idle ring and the rotary ring in the mechanical seal using the idle ring.
- the present invention employs the following means in order to solve the above problems.
- the mechanical seal of the present invention is A mechanical seal that seals an annular gap between the rotating shaft and the housing, A rotating ring that rotates with the rotating shaft; A stationary ring secured to the housing; An idle ring having a sliding portion that is provided between the rotating ring and the fixed ring in the axial direction of the rotating shaft and slides with the rotating ring; Have Sealing the fluid to be sealed through the sliding part,
- the sliding portion includes a plurality of carbon fibers and silicon carbide provided between the plurality of carbon fibers.
- the idle ring of the present invention is An idler ring used for a mechanical seal that seals an annular gap between a rotating shaft and a housing, the rotating ring rotating together with the rotating shaft in an axial direction of the rotating shaft, and fixed to the housing
- a floating ring having a sliding portion that is provided between the fixed ring and sliding with the rotating ring, Sealing the fluid to be sealed through the sliding part,
- the sliding portion includes a plurality of carbon fibers and silicon carbide provided between the plurality of carbon fibers.
- the carbon fiber having elasticity when the pressure is generated when the liquid film at the contact portion between the rotating ring and the stationary ring and the floating ring is crushed by the axial movement of the floating ring, and the carbon fiber Since there is silicon carbide in contact with the mating surface under the load existing between the carbon fiber, the carbon fiber is elastically deformed, the number of places in contact with the mating surface increases, the apparent area does not change, but the actual contact area is become more. Further, since the contact surface pressure at each location is lowered as compared with other sliding materials having the same sliding surface width, it is possible to prevent the sliding surface from being seized and damaged due to seizing.
- the carbon fiber in the sliding portion of the idle ring creates an advantageous effect regarding sliding. Therefore, good slidability can be obtained, sufficient strength can be obtained, and the sealing performance between the idler ring and the rotating ring can be improved.
- a carbon fiber bundle portion that is an aggregate in which the longitudinal directions of a plurality of carbon fibers are oriented in substantially the same direction is formed, and silicon carbide is formed between the carbon fibers included in the carbon fiber bundle portion.
- silicon carbide is formed between the carbon fibers included in the carbon fiber bundle portion.
- non-fiber carbon provided between one carbon fiber bundle part and another carbon fiber bundle part adjacent to the carbon fiber bundle part.
- the non-fiber carbon acts as a self-lubricant and further improves slidability.
- the hardness of the carbon fiber itself or the hardness of silicon carbide in the carbon fiber bundle portion is higher than the hardness of non-fiber carbon.
- Non-fibrous carbon is lower than the carbon fiber bundle part, and this part also functions as a fluid reservoir and improves lubricity.
- non-fiber carbon since non-fiber carbon is in a low position, silicon carbide provided between the carbon fibers in the sliding portion comes into contact with the mating surface, and the actual contact portion is likely to increase.
- the plurality of carbon fiber bundle portions formed on the sliding portion may be randomly oriented. Because the carbon fiber bundles are randomly oriented, it is difficult to form a leakage path on the sliding part even on a narrow sliding surface such as an idle ring, and fluid accumulates between the sliding parts. It becomes easy.
- silicon carbide is preferably present in the sliding portion in a ratio of 35% or more and less than 85%.
- the abundance ratio of silicon carbide is set to a predetermined value or more, the amount of silicon carbide that supports the contact force can be secured, the load can be supported, and the abundance ratio of silicon carbide is less than the predetermined value, It is possible to secure a fluid pool due to gaps between carbonized fibers and improve lubricity.
- the portion of the rotating ring that slides with the sliding portion of the free ring preferably has a plurality of carbon fibers and silicon carbide provided between the plurality of carbon fibers.
- the sealing performance between the idle ring and the rotary ring can be improved in the mechanical seal using the idle ring.
- FIG. 1 is a schematic cross-sectional view showing the overall configuration of the mechanical seal.
- FIG. 2 is a photomicrograph of the sliding part.
- FIG. 3 is an enlarged partial photograph of FIG.
- FIG. 4 is a photomicrograph of the sliding portion of the sample prepared in this example.
- FIG. 1 is a schematic cross-sectional view showing the overall configuration of the mechanical seal according to the present embodiment.
- the mechanical seal is used for sealing an annular gap between the rotating shaft and the housing.
- the mechanical seal 100 includes an annular rotating ring 110 that rotates together with a rotating shaft 200, an annular fixed ring (stationary ring) 120 that is fixed to a housing 300, and a rotating ring 110. And a stationary ring (seal ring) 130 provided between the stationary ring 120 and the stationary ring 120. Further, the mechanical seal 100 includes a cylindrical portion 141 whose inner peripheral surface is fixed to the outer peripheral surface of the rotating shaft 200, and a holding portion 142 that extends from the cylindrical portion 141 to the radially outer side of the rotating shaft 200 and holds the rotating ring 110. An annular sleeve 140 is provided.
- the mechanical seal 100 includes a spring spring 150 as a biasing member that biases the stationary ring 120 against the idle ring 130.
- a plurality of spring springs 150 are provided at equal intervals in the circumferential direction so that the fixed ring 120 is given a uniform biasing force in the circumferential direction with respect to the idle ring 130.
- FIG. 1 is a cross-sectional view taken along a cross section that includes a spring spring 150 and that is perpendicular to the axial direction of the rotary shaft 200.
- the rotating ring 110 has a sliding portion 111 that is one end in the axial direction of the rotating shaft 200 (hereinafter also simply referred to as the axial direction) and slides with the idle ring 130.
- the end surface in the axial direction which contacts the idle ring 130 among the sliding parts 111 be the sliding surface 111a.
- the fixed ring 120 has a pressing surface 120a that is one end surface in the axial direction and presses against the idle ring 130.
- the idle ring 130 is provided between the rotating ring 110 and the fixed ring 120 in the axial direction without being fixed to other members. Further, the idle ring 130 has a sliding portion 131 that slides with the sliding portion 111 of the rotating ring 110. The sliding portion 131 is a tip portion of a portion protruding in the axial direction with respect to the rotating ring 110. In addition, let the end surface in the axial direction which contacts the rotating ring 110 among the sliding parts 131 be the sliding surface 131a. In addition, the idle ring 130 has a pressed portion 132 that is pressed against the pressing surface 120 a of the stationary ring 120. The pressed portion 132 is a tip portion of a portion protruding in the axial direction with respect to the fixed ring 120. The idle ring 130 slides on the rotating ring 110 that rotates as the rotating shaft 200 rotates, but the rotating shaft 200 moves in the rotating direction by a pin 301 that is provided as a detent provided protruding from the housing 300. It is regulated.
- the fluid to be sealed is sealed through the sliding portion 131 and the pressed portion 132 of the idle ring 130. That is, as shown in FIG. 1, the inside of the housing 300 is divided into a fluid side L on which a fluid to be sealed is sealed and an atmosphere side (non-fluid side) A.
- the fluid side L is on the radially outer side of the rotating shaft 200 with respect to the sliding portion 131 and the pressed portion 132
- the atmosphere side A is the rotating shaft with respect to the sliding portion 131 and the pressed portion 132. 200 inward in the radial direction.
- FIG. 2 is a photomicrograph of the sliding part.
- FIG. 3 is an enlarged partial photograph of FIG.
- the sliding part 131 of the idle ring 130 of this embodiment is mainly composed of carbon and silicon carbide, but may contain other substances such as silicon.
- a SiC—C fiber-shaped structure derived from a carbon fiber structure used in the manufacturing process of the idle ring 130 is formed on the sliding portion 131 of the idle ring 130.
- the SiC-C fiber shape structure is observed as a line-like structure extending along the fiber direction.
- the portion that appears white is silicon carbide
- the portion that appears gray is carbon fiber
- the portion that appears black between the carbon fibers is non-fiber carbon.
- a portion in which an aggregate in which a plurality of carbon fibers are directed in substantially the same direction is one carbon fiber bundle portion
- the carbon fiber bundle portion and the streak-like silicon carbide contained therein are SiC fibers. It forms a shape tissue.
- Non-fibrous carbon is provided between one carbon fiber bundle portion and another carbon fiber bundle portion adjacent thereto and between carbon fibers constituting one carbon fiber portion.
- the proportion and arrangement of non-fiber carbon may be changed as appropriate.
- the carbon fiber bundle portion has a width of about several tens of ⁇ m to several hundreds of ⁇ m along a direction perpendicular to the fiber direction 30. Further, there may be a portion formed in a lump shape by concentration of silicon carbide.
- carbon fibers constituting the carbon fiber bundle portion and silicon carbide provided between the carbon fibers are alternately arranged along a direction perpendicular to the fiber direction 30 (longitudinal direction of the fibers). Appear in One carbon fiber bundle portion in the SiC-C fiber shape structure has a width of about 0.2 mm to 4 mm along a direction perpendicular to the fiber direction 30.
- a plurality of carbon fiber bundle portions are formed on the sliding portion 131 of the idle ring 130 so that the fiber directions 30 intersect each other.
- the arrangement state of each carbon fiber bundle portion formed on the sliding portion 131 of the idle ring 130 is not particularly limited, and carbon fiber bundle portions having random fiber directions 30 may be dispersed in the sliding portion 131.
- a plurality of carbon fiber bundle portions may be formed in a predetermined pattern such as a knitted shape.
- the fiber direction 30 of the carbon fiber bundle portion can be recognized from the extending direction of the streaky silicon carbide or carbon fiber included in the SiC-C fiber shape structure.
- the content ratio of silicon carbide and carbon (carbon includes carbon fiber and non-fiber carbon) in the sliding portion 131 of the idle ring 130 is not particularly limited, but in the sliding portion 131, silicon carbide is 35% or more and 85%. Preferably it is present in a ratio of less than.
- silicon carbide is 35% or more and 85%.
- the lubricity of the sliding part 131 can be effectively improved.
- the arithmetic average roughness Ra (JIS B 0601: 2001) of the sliding portion 131 (sliding surface 131a) of the idle ring 130 is preferably 0.01 ⁇ m or more and less than 1 ⁇ m.
- Ra By setting the arithmetic average roughness Ra of the sliding portion 131 to 0.01 ⁇ m or more, it is possible to effectively improve the lubricity of the sliding portion 131, and the arithmetic average roughness of the sliding portion 131.
- Ra By setting Ra to less than 1 ⁇ m, it is possible to prevent leakage of the fluid to be sealed while maintaining the lubricity of the sliding portion 131.
- the skewness Psk (JIS B 0601: 2001) of the sliding part 131 is preferably in a negative range.
- the skewness Psk By setting the skewness Psk to be in a negative range, it is possible to prevent a problem that the apex of the convex portion formed on the sliding portion 131 damages other members facing when the fluid is sealed.
- the carbon fiber present in the sliding portion 131 is preferably formed so that the fiber direction 30 is along the plane direction of the sliding portion 131, and thereby the end surface of the carbon fiber (the rotating ring 110 of the rotating ring 110). It is possible to slide without damaging the sliding surface 111a), and it is possible to prevent the leakage path from being formed inside the sealed sliding ring and make it difficult for fluid to leak.
- the sliding portion 131 may include a silicon portion made of silicon (Si) (observed as a lump that is whiter than the silicon carbide portion inside the silicon carbide portion). good.
- the manufacturing method of the sliding portion 131 of the idle ring 130 is not limited to the manufacturing method described below.
- the carbon fibers to be prepared are not particularly limited.
- PAN-based or pitch-based carbon fibers having a length of 1 mm to 10 mm and a thickness of 5 ⁇ m to 50 ⁇ m can be used.
- the carbon fibers are preferably arranged so that their longitudinal directions are orthogonal to the axial direction, and are randomly arranged on the entire sliding surface 131a of the idle ring 130.
- the carbon fibers arranged such that the longitudinal direction thereof is orthogonal to the axial direction is 80% or more. Yes, it may be arranged on the sliding part 131 as a whole. Depending on the manufacturing process, carbon fibers that cannot be arranged so that the longitudinal direction thereof is orthogonal to the axial direction may be included. In addition, you may use what these carbon fibers are in sheet form.
- a part of the base carbon is converted to SiC by firing at about 1400 ° C. to 1800 ° C., and finally the surface is polished as necessary to obtain the sliding portion 131.
- a part of the sliding portion 131 is made of SiC from the moving surface 131a to a depth of at least 1 mm.
- Samples 1 to 7 are prepared by preparing carbon fibers formed into a sheet shape, solidifying and laminating the sheet-like carbon fibers with a binder resin, impregnating with molten Si at around 1600 ° C., firing, Manufactured by polishing.
- the abundance ratio of silicon carbide in the sliding portion 131 was changed by adjusting the SiC conversion conditions.
- Samples 1 to 7 after production were subjected to image analysis of the micrograph of the sliding portion 131 using a laser microscope, and the abundance ratio of silicon carbide in the sliding portion 131 was measured using image processing software (Table 1). reference).
- a leakage test of the idle ring 130 having the sliding portion 131 using the samples 1 to 7 was performed using an actual machine testing machine.
- the leakage test was conducted using water as a fluid to be sealed, a PV value of 8 MPaG ⁇ m / s, a temperature of room temperature, and the same material as the counterpart.
- the PV value is the fluid pressure P (MPaG) due to the fluid to be sealed applied to the sliding part 131 and the speed V (m / s) of the sliding part 111 of the rotating ring 110 sliding with the sliding part 131. Is the product.
- the evaluation results are shown in Table 1.
- the leakage amount of less than 3 ml / hr was determined as “ ⁇ : OK”, and the leakage amount of 3 ml / hr or more was determined as “x: NG”.
- the roughness of the sliding part 131 in each sample was also measured.
- the sliding portion 131 using the samples 1 to 7 is formed with a SiC-C fiber shape structure having a large number of carbon fiber bundle portions in which the fiber directions 30 intersect each other.
- the floating ring 130 according to Sample 1 to Sample 7 suitably suppresses leakage of the fluid to be sealed from the sliding portion 131 while compensating for the problem of silicon carbide having poor self-lubricating properties.
- the samples 3 to 7 in which silicon carbide is present in a ratio of 35% or more and less than 85% can effectively reduce the leakage of the fluid to be sealed from the sliding portion 131. there were. Note that Sample 1 and Sample 2 in which leakage occurred under the above conditions can function appropriately as a mechanical seal if the application conditions are changed, such as by reducing the PV value.
- CMC carbon fiber reinforced composite SiC
- the sliding portion 131 of the idle ring 130 of the present embodiment has a SiC-C fiber shape having carbon fibers forming a carbon fiber bundle portion and silicon carbide provided between the carbon fibers. Since the structure is formed, it has the characteristics of silicon carbide such as hard and low wear, and has suitable sealing characteristics and lubricity.
- the SiC-C fiber shape structure has a structure in which silicon carbide and carbon fiber are finely interlaced, and such SiC-C fiber structure is obtained by any one or a combination of factors described later, It is considered that the sliding portion 131 is given slidability.
- the carbon fiber and the carbon fiber are adjacent to each other, so that a gap is formed between the carbon fibers, and the gap functions as a fluid pool to provide lubricity.
- the carbon fiber itself functions as a lubricant.
- the hardness of the carbon fiber itself or the hardness of the silicon carbide in the carbon fiber bundle part is higher than the hardness of the non-fiber carbon by the lapping treatment, the non-fiber carbon between the carbon fibers becomes the carbon fiber bundle part.
- a recessed portion that is recessed it functions as a fluid pool and imparts slidability.
- the slidability is imparted by the carbon constituting the non-fiber carbon portion acting as a solid lubricant.
- the orientation of the fibers in the carbon fiber bundle portion in the longitudinal direction is randomly oriented for each carbon fiber portion, it is difficult to form a leakage flow path in the sliding portion 131, and the sliding portion 131 It is possible to hold fluid and impart slidability.
- the SiC-C fibrous structure formed by converting part of the carbon fiber into SiC such as the surface of the carbon fiber, has good bonding properties between the carbon fiber and silicon carbide, The problem of occurrence of chipping or the like can be suitably prevented.
- silicon carbide in the SiC-C fibrous structure has high strength, good wear resistance can be imparted to the sliding portion 131 of the idle ring 130, and there are too many gaps in the sliding portion 131. To prevent.
- the idle ring 130 that can achieve both the lubricity of the sliding portion 131 and the prevention of leakage of the fluid to be sealed from the sliding portion 131 is a high temperature that is difficult to cope with with the conventional idle ring 130. -It can be particularly suitably used even under high pressure and high speed conditions.
- the sliding portion 131 of the idle ring 130 is elastically deformed, the contact area with the sliding surface 111a of the rotating ring 110 is increased, and the local surface is increased. Reduces pressure and suppresses burnout. Further, when the idle ring 130 rotates due to the influence of the fluid pressure, the apparent contact area does not change, but the actual contact area increases due to the elastic deformation of the carbon fiber, thereby reducing the local surface pressure and suppressing burning.
- sliding members used in a pair with the idle ring 130 are sliding parts of the idle ring 130 such as those containing metal and those containing only carbon or silicon carbide.
- 131 may have a composition or a structure different from 131, but by having the same composition or structure as the sliding portion 131 of the idle ring 130 of this embodiment, the slidability is further improved.
- a mechanical seal having high sealing performance can be provided.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
Abstract
Description
回転軸とハウジングとの間の環状隙間を封止するメカニカルシールであって、
前記回転軸と共に回転する回転環と、
前記ハウジングに対して固定される固定環と、
前記回転軸の軸線方向において前記回転環と前記固定環との間に設けられ、前記回転環と摺動する摺動部を有する遊動環と、
を有し、
前記摺動部を介して密封対象流体を密封し、
前記摺動部は、複数の炭素繊維と、前記複数の炭素繊維の間に設けられる炭化珪素とを有することを特徴とする。
回転軸とハウジングとの間の環状隙間を封止するメカニカルシールに用いられる遊動環であって、前記回転軸の軸線方向において、前記回転軸と共に回転する回転環と、前記ハウジングに対して固定される固定環との間に設けられて、前記回転環と摺動する摺動部を有する遊動環において、
前記摺動部を介して密封対象流体を密封し、
前記摺動部は、複数の炭素繊維と、前記複数の炭素繊維の間に設けられる炭化珪素とを有することを特徴とする。
<本実施例に係るメカニカルシールの構成>
図1を参照して、本発明の実施例(以下、本実施例という)に係るメカニカルシールの全体構成について説明する。図1は、本実施例に係るメカニカルシールの全体構成を示す模式的断面図である。本実施例においては、メカニカルシールを1つ用いたシングルシール構成について説明するが、2つのメカニカルシールを用いたダブルシール構成に本発明を適用してもよい。メカニカルシールは、回転軸とハウジングとの間の環状隙間を封止するために用いられる。
次に、図2、図3を参照して、本実施例の遊動環の摺動部の材料について説明する。図2は、摺動部の顕微鏡写真である。図3は、図2の拡大部分写真である。
110 回転環
111 摺動部
111a 摺動面
120 固定環
120a 押圧面
130 遊動環
131 摺動部
131a 摺動面
132 被押圧部
140 スリーブ
141 円筒部
142 保持部
150 スプリングバネ
200 回転軸
300 ハウジング
301 ピン
Claims (7)
- 回転軸とハウジングとの間の環状隙間を封止するメカニカルシールであって、
前記回転軸と共に回転する回転環と、
前記ハウジングに対して固定される固定環と、
前記回転軸の軸線方向において前記回転環と前記固定環との間に設けられ、前記回転環と摺動する摺動部を有する遊動環と、
を有し、
前記摺動部を介して密封対象流体を密封し、
前記摺動部は、複数の炭素繊維と、前記複数の炭素繊維の間に設けられる炭化珪素とを有することを特徴とするメカニカルシール。 - 前記複数の炭素繊維の長手方向が略同方向を向く集合体である炭素繊維束部が形成されており、前記炭化珪素が前記炭素繊維束部に含まれる前記炭素繊維の間に形成されている請求項1に記載のメカニカルシール。
- 一つの前記炭素繊維束部と、これに隣接する他の前記炭素繊維束部と、の間に設けられている非繊維炭素を、さらに有する請求項2に記載のメカニカルシール。
- 前記摺動部に形成された複数の前記炭素繊維束部は、ランダムに配向されている請求項2又は3に記載のメカニカルシール。
- 前記摺動部において、炭化珪素が35%以上85%未満の比で存在する請求項1~4のいずれか1項に記載のメカニカルシール。
- 前記回転環のうち前記摺動部と摺動する部分は、複数の炭素繊維と、前記複数の炭素繊維の間に設けられる炭化珪素とを有することを特徴とする請求項1~5のいずれか1項に記載のメカニカルシール。
- 回転軸とハウジングとの間の環状隙間を封止するメカニカルシールに用いられる遊動環であって、前記回転軸の軸線方向において、前記回転軸と共に回転する回転環と、前記ハウジングに対して固定される固定環との間に設けられ、前記回転環と摺動する摺動部を有する遊動環において、
前記摺動部を介して密封対象流体を密封し、
前記摺動部は、複数の炭素繊維と、前記複数の炭素繊維の間に設けられる炭化珪素とを有することを特徴とする遊動環。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201580039009.6A CN106537006A (zh) | 2014-07-25 | 2015-07-23 | 机械密封和游动环 |
| US15/327,561 US20170198815A1 (en) | 2014-07-25 | 2015-07-23 | Mechanical seal and floating ring |
| EP15824904.5A EP3173671A1 (en) | 2014-07-25 | 2015-07-23 | Mechanical seal and floating ring |
| JP2016535975A JPWO2016013628A1 (ja) | 2014-07-25 | 2015-07-23 | メカニカルシール、遊動環 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014151975 | 2014-07-25 | ||
| JP2014-151975 | 2014-07-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016013628A1 true WO2016013628A1 (ja) | 2016-01-28 |
Family
ID=55163152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2015/071015 Ceased WO2016013628A1 (ja) | 2014-07-25 | 2015-07-23 | メカニカルシール、遊動環 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20170198815A1 (ja) |
| EP (1) | EP3173671A1 (ja) |
| JP (1) | JPWO2016013628A1 (ja) |
| CN (1) | CN106537006A (ja) |
| WO (1) | WO2016013628A1 (ja) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2596555B (en) * | 2020-06-30 | 2023-10-11 | Crane John Uk Ltd | Apparatus and method |
| EP4323672B1 (en) * | 2021-04-14 | 2025-12-03 | John Crane, Inc. | Non-pusher seal with sealing elastomer and systems utilizing same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4958277A (ja) * | 1972-09-28 | 1974-06-06 | ||
| JPH05288276A (ja) * | 1992-04-07 | 1993-11-02 | Eagle Ind Co Ltd | メカニカルシール用摺動材料及びその製造方法 |
| JP2001089255A (ja) * | 1999-09-16 | 2001-04-03 | Sgl Technik Gmbh | 繊維束で強化された複合材料 |
| JP2004293766A (ja) * | 2003-03-28 | 2004-10-21 | Chubu Electric Power Co Inc | 遊動環型メカニカルシール |
| WO2010001762A1 (ja) * | 2008-07-02 | 2010-01-07 | イーグル工業株式会社 | 摺動部材およびメカニカルシール |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6223503A (ja) * | 1985-07-22 | 1987-01-31 | Mitsubishi Heavy Ind Ltd | タ−ボ機械の軸シ−ル装置 |
| CN202154825U (zh) * | 2011-07-22 | 2012-03-07 | 周宪华 | 骨折固定床 |
-
2015
- 2015-07-23 WO PCT/JP2015/071015 patent/WO2016013628A1/ja not_active Ceased
- 2015-07-23 US US15/327,561 patent/US20170198815A1/en not_active Abandoned
- 2015-07-23 CN CN201580039009.6A patent/CN106537006A/zh active Pending
- 2015-07-23 EP EP15824904.5A patent/EP3173671A1/en not_active Withdrawn
- 2015-07-23 JP JP2016535975A patent/JPWO2016013628A1/ja active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4958277A (ja) * | 1972-09-28 | 1974-06-06 | ||
| JPH05288276A (ja) * | 1992-04-07 | 1993-11-02 | Eagle Ind Co Ltd | メカニカルシール用摺動材料及びその製造方法 |
| JP2001089255A (ja) * | 1999-09-16 | 2001-04-03 | Sgl Technik Gmbh | 繊維束で強化された複合材料 |
| JP2004293766A (ja) * | 2003-03-28 | 2004-10-21 | Chubu Electric Power Co Inc | 遊動環型メカニカルシール |
| WO2010001762A1 (ja) * | 2008-07-02 | 2010-01-07 | イーグル工業株式会社 | 摺動部材およびメカニカルシール |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3173671A1 (en) | 2017-05-31 |
| US20170198815A1 (en) | 2017-07-13 |
| JPWO2016013628A1 (ja) | 2017-06-08 |
| CN106537006A (zh) | 2017-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6219373B2 (ja) | 密封摺動部材 | |
| US20070223850A1 (en) | Titanium spherical plain bearing with liner and treated surface | |
| US10196576B2 (en) | Water lubrication type bearing material | |
| JP5459356B2 (ja) | 半割軸受 | |
| US20160327090A1 (en) | Sliding bearing | |
| Zhang et al. | B4C–SiC ceramics with interfacial nanorelief morphologies and low underwater friction and wear | |
| WO2016013628A1 (ja) | メカニカルシール、遊動環 | |
| JPWO2014185291A1 (ja) | Ptfe樹脂組成物 | |
| JP2019504131A (ja) | 摩擦材 | |
| WO2015111574A1 (ja) | 摺動部材 | |
| CN102472321A (zh) | 滑动轴承装置及压缩机 | |
| KR20160132986A (ko) | 회전축 하우징 및 시일 | |
| JP4635042B2 (ja) | 遊動環形メカニカルシール | |
| JP7149252B2 (ja) | 摺動部材用樹脂材料および摺動部材 | |
| JP2018009671A (ja) | グランドパッキンの製造方法およびグランドパッキン | |
| CN105972084A (zh) | 一种轴套 | |
| JP2744856B2 (ja) | メカニカルシール用硼化チタン複合炭化珪素焼結体およびメカニカルシール | |
| WO2025063176A1 (ja) | 摺動部品 | |
| JP4792843B2 (ja) | シール材 | |
| Apatay et al. | Thermally loaded elastic‐plastic shrink fit with FGM‐hub | |
| CN115789007A (zh) | 一种液压缸导向环及其制备方法 | |
| JPS61248965A (ja) | 摺動用シ−ルリング | |
| CN117043496A (zh) | 滑动部件 | |
| WO2025234402A1 (ja) | 摺動部品 | |
| CN101294604A (zh) | 一种发动机用滚针轴承保持架结构 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15824904 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2016535975 Country of ref document: JP Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 15327561 Country of ref document: US |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| REEP | Request for entry into the european phase |
Ref document number: 2015824904 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2015824904 Country of ref document: EP |