WO2010106935A1 - 調整弁装置 - Google Patents
調整弁装置 Download PDFInfo
- Publication number
- WO2010106935A1 WO2010106935A1 PCT/JP2010/053749 JP2010053749W WO2010106935A1 WO 2010106935 A1 WO2010106935 A1 WO 2010106935A1 JP 2010053749 W JP2010053749 W JP 2010053749W WO 2010106935 A1 WO2010106935 A1 WO 2010106935A1
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- WIPO (PCT)
- Prior art keywords
- valve
- valve body
- space
- power transmission
- transmission member
- Prior art date
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Classifications
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
- F16K31/1268—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like with a plurality of the diaphragms
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
Definitions
- the present invention relates to a regulating valve device that opens and closes a valve body with a working fluid such as air.
- valve body is slid to contact or isolate the valve body from the valve seat surface of the transport path, thereby opening and closing the transport path and adjusting the flow rate.
- the valve body and the valve seat surface are made of stainless steel such as SUS or aluminum, for example.
- the film forming material (organic molecules) evaporated by the vapor deposition source passes through the transport path together with the carrier gas and is transported to the substrate.
- the conveyance path needs to be in a high temperature state of 300 ° C. or higher. Thereby, the vicinity of a valve body will be in the high temperature state of 300 degreeC or more.
- the valve body is coated with a resin such as Ni—Co, the resin has a low heat-resistant temperature. Therefore, when exposed to a high temperature, the resin is likely to be deformed and melted to cause galling or seizure. As a result, the frequency of occurrence of leakage is further increased, and the opening / closing accuracy of the valve body is lowered.
- a resin such as Ni—Co
- an object of the present invention is to provide a regulating valve device that optimizes the structure and shape of the valve body and improves the opening / closing accuracy of the valve body.
- a valve body head and a valve body part are connected by a valve shaft, the valve body is connected to the valve body, and power is supplied to the valve body.
- a power transmission member that transmits, a valve box that slidably incorporates the valve body and the power transmission member, one end fixed to the power transmission member, and the other end fixed to the valve box,
- a first bellows that forms a first space at a position opposite to the valve body with respect to the power transmission member, one end is fixed to the power transmission member, and the other end is fixed to the valve box,
- a second bellows that forms a second space at a position on the valve body side with respect to the power transmission member, a first pipe that communicates with the first space, and a second that communicates with the second space.
- a working fluid supplied from the first pipe to the first space and the first pipe By transmitting power from the power transmission member to the valve body via the valve shaft in accordance with the ratio of the working fluid supplied from the pipe to the second space, the valve body head causes the valve to An adjustment valve device for opening and closing a conveyance path formed in a box is provided.
- the first space Us is formed at a position opposite to the valve body 310 with respect to the power transmission member 320a using the first bellows 320b, and the first bellows 320b is formed.
- the 2nd space Ls is formed in the position by the side of a valve body to power transmission member 320a using the 2nd bellows 320c.
- the power transmission member 320a sandwiched between the first and second spaces is closed in the valve body direction. Or it can be made to slide in the opening direction.
- This power is transmitted to the valve body head 310a via the valve shaft 310c.
- the conveyance path (the forward path 200a1 and the return path 200a2) can be opened and closed by the valve head 310a.
- the valve body may have a structure in which the valve body head and the valve body part are connected by a valve shaft, or the valve body head and the valve body part may have an integrated structure. .
- valve shaft may pass through the center in the longitudinal direction of the valve body and be inserted into a recess provided in the center of the valve head.
- play may be provided between the recess provided in the center of the valve body head and the valve shaft.
- the clearance between the valve body 310b and the valve shaft 310c in FIG. 5 is controlled to correct the shake of the valve shaft 310c, and the play 310a2 is provided in the recess 310a1 of the valve body head 310a.
- the slight deviation of the shaft of the valve body head 310a can be adjusted.
- the space on the valve shaft side and the space on the conveyance path side may be blocked by fixing one end to the valve body head and the other end to the valve body.
- the portion of the valve body head that comes into contact with the conveyance path may have a tapered shape, and the taper opening ⁇ with respect to a line segment perpendicular to the tip surface of the valve body head may be 40 ° to 80 °.
- the portion of the valve head that comes into contact with the conveyance path may be arcuate and have a desired radius of curvature.
- the valve head may be a metal stellite so that the Vickers hardness is 500 HV or more.
- the valve body head may be provided with a weld deposit of cobalt alloy.
- the valve seat surface of the conveyance path that comes into contact with the valve body head may be a metal whose surface is processed so that the Vickers hardness is approximately 200 to 400 HV by sheet burnishing.
- the regulating valve device may be used for opening and closing a transport path for transporting organic molecules forming a target object to the vicinity of the target object.
- the adjusting valve device may be used in an environment where the inside is 300 ° C. or higher.
- the structure and shape of the valve body can be optimized and the opening / closing accuracy of the valve body can be improved.
- FIG. 1 It is a schematic perspective view of the 6-layer continuous film-forming apparatus which concerns on one Embodiment of this invention. It is sectional drawing of the film-forming unit which concerns on the same embodiment. It is a schematic diagram of the organic EL element formed with the 6 layer continuous film-forming apparatus based on the embodiment. It is sectional drawing of the vapor deposition source and conveyance path which concern on the same embodiment. It is sectional drawing of the regulating valve apparatus which concerns on the same embodiment. It is the figure which showed the result of having detected the amount of leaks using the regulating valve apparatus concerning the embodiment.
- the 6-layer continuous film forming apparatus 10 has a rectangular vacuum vessel Ch.
- the inside of the vacuum vessel Ch is evacuated by an exhaust device (not shown) and maintained in a desired vacuum state.
- Six film forming units 20 are arranged side by side inside the vacuum vessel Ch.
- a partition plate 500 is provided between adjacent film forming units 20.
- the film forming unit 20 includes three rectangular deposition source units 100, a connecting pipe 200, and three regulating valve devices 300 and a blowing mechanism 400 that are arranged in pairs with the deposition source unit 100.
- the vapor deposition source unit 100 is made of a metal such as SUS. Since quartz or the like hardly reacts with an organic material, the vapor deposition source unit 100 may be formed of a metal coated with quartz or the like.
- the vapor deposition source unit 100 is an example of a vapor deposition source that vaporizes a material, and need not be a unit-type vapor deposition source, and may be a general crucible.
- Vaporization includes not only a phenomenon in which a liquid changes into a gas but also a phenomenon in which a solid changes directly into a gas without passing through a liquid state (that is, sublimation).
- the vaporized organic molecules are transported to the blowing mechanism 400 through the connecting pipe 200 and blown out from a slit-like opening Op provided at the upper part of the blowing mechanism 400.
- the blown-out organic molecules are attached to the substrate G, whereby the substrate G is formed.
- the partition plate 500 prevents the organic molecules blown out from the adjacent openings Op from being formed while being mixed.
- the face-down substrate G that slides and moves at the ceiling position of the vacuum vessel Ch is formed, but the substrate G may be arranged face-up.
- the vapor deposition source unit 100 includes a material input unit 110 and an outer case 120.
- the material input device 110 includes a material container 110a for storing an organic film forming material and a carrier gas introduction channel 110b.
- the outer case 120 is formed in a bottle shape, and the material feeder 110 is detachably mounted in the hollow interior.
- the internal space of the vapor deposition source unit 100 is defined.
- the internal space of the vapor deposition source unit 100 communicates with a conveyance path 200 a formed inside the connection pipe 200.
- the conveyance path 200 a is opened and closed by the opening and closing mechanism of the regulating valve device 300.
- the regulating valve device 300 opens and closes the conveyance path 200a with pressurized air supplied from an air supply source 600 provided outside the vacuum vessel Ch.
- the internal structure of the regulating valve device 300 will be described later.
- the end of the material input device 110 is connected to a gas supply source (not shown), and introduces argon gas supplied from the gas supply source into the flow path 110b.
- the argon gas functions as a carrier gas for transporting organic molecules of the film forming material stored in the material container 110a.
- the carrier gas is not limited to argon gas, and may be any inert gas such as helium gas or krypton gas.
- the organic molecules of the film forming material are transported from the vapor deposition source unit 100 through the transport path 200a of the connecting pipe 200 to the blowing mechanism 400, temporarily stay in the buffer space S, and then pass through the slit-shaped opening Op on the substrate G. Adhere to.
- the substrate G travels above the first to sixth blowing mechanisms 400 at a certain speed.
- the first hole injection layer, the second hole transport layer, the third blue light emitting layer, and the fourth green light emitting layer are sequentially formed on the ITO of the substrate G.
- the fifth red light emitting layer and the sixth electron transport layer are formed.
- the first to sixth organic layers are continuously formed.
- the blue light emitting layer, the green light emitting layer, and the red light emitting layer of the third to fifth layers are light emitting layers that emit light by recombination of holes and electrons.
- the metal layer (electron injection layer and cathode) on the organic layer is formed by sputtering.
- an organic EL element having a structure in which the organic layer is sandwiched between the anode (anode) and the cathode (cathode) is formed on the glass substrate.
- a voltage is applied to the anode and cathode of the organic EL element, holes (holes) are injected into the organic layer from the anode, and electrons are injected into the organic layer from the cathode.
- the injected holes and electrons recombine in the organic layer, and light emission occurs at this time.
- the connecting pipe 200 conveys the vaporized organic molecules to the blowing mechanism 400 via the regulating valve device 300.
- the valve body of the regulating valve device 300 is opened during the film formation, the organic molecules vaporized in each vapor deposition source unit 100 are transported by the carrier gas while being transported by the carrier gas from the forward path 200a1 to the return path 200a2. And transported to the blowing mechanism 400.
- the valve body of the regulating valve device 300 is closed when no film is formed, the forward path 200a1 and the return path 200a2 of the transport path are closed, and the transport of organic molecules is stopped.
- the regulating valve device 300 has a cylindrical valve box 305.
- the valve box 305 is divided into three parts: a front member 305a, a central bonnet 305b, and a rear member 305c.
- the valve box 305 is hollow, and a valve body 310 is built in substantially the center thereof.
- the valve element 310 is separated into a valve element head part 310a and a valve element body part 310b.
- the valve head 310a and the valve body 310b are connected by a valve shaft 310c.
- the valve shaft 310c is a rod-shaped member, and passes through the center of the valve body part 310b in the longitudinal direction, and is fitted into a recess 310a1 provided at the center of the valve body head 310a.
- the protrusion 310b1 of the valve body 310b is inserted into an annular recess 305a1 provided in the bonnet 305b of the valve box 305.
- an outward path 200a1 and a return path 200a2 of the transport path 200a are formed in the front member 305a of the valve box 305.
- the recess 305a1 is provided with a space in which the valve body 310b can slide in the longitudinal direction in a state in which the protrusion 310b1 is inserted, and a heat-resistant buffer member 315 is interposed in the space.
- a heat-resistant buffer member 315 is interposed in the space.
- An example of the buffer member 315 is a metal gasket. The buffer member 315 blocks the vacuum on the conveyance path side and the atmosphere on the valve shaft 310c side, and reduces mechanical interference between the protrusion 310b1 and the bonnet 305b due to sliding of the valve body part 310b.
- a play 310a2 is also provided in the recess 310a1 of the valve body head 310a with the valve shaft 310c inserted.
- the valve body 310 since the valve body part 310b and the valve body head part 310a are separated, by controlling the clearance (gap) between the valve body part 310b and the valve shaft 310c, The deviation of the center position of the valve body 310 during the opening / closing operation is corrected.
- a slight deviation of the shaft of the valve head 310a can be adjusted.
- the valve body head 310a is brought into contact with the valve seat surface 200a3 without deviation, so that the close contact between the valve body head 310a and the valve seat surface 200a3 can be increased, thereby preventing leakage.
- the adjustment valve device 300 is used in a high temperature state or is used in a low temperature state, so that an influence is caused due to thermal expansion of the metal. Even so, since the influence can be absorbed by the separation structure of the valve body 310 as described above, the leakage of the valve body portion at the time of opening and closing can be effectively prevented as compared with the integrated valve body.
- the valve body drive unit 320 is provided on the rear member 305c of the valve box 305.
- the valve body drive unit 320 includes a power transmission member 320a, a first bellows 320b, and a second bellows 320c built in the valve box 305.
- the power transmission member 320a is substantially T-shaped and is screwed to the end of the valve shaft 310c.
- the first bellows 320b has one end welded to the power transmission member 320a and the other end welded to the rear member 305c. Accordingly, the first side which is isolated by the power transmission member 320a, the first bellows 320b, and the rear member 305c on the rear side of the valve box 305 (position opposite to the valve body 310 with respect to the power transmission member 320a). A space Us is formed.
- the second bellows 320c has one end welded to the power transmission member 320a and the other end welded to the rear member 305c.
- the power transmission member 320a, the first bellows 320b, the second bellows 320c, and the rear member 305c are isolated on the front side of the valve box 305 (position on the valve body side with respect to the power transmission member 320a).
- a second space Ls is formed.
- the first pipe 320d communicates with the first space Us isolated by the first bellows 320b.
- the first pipe 320d is connected to the supply pipe Ar1 of the air supply source 600.
- the first pipe 320d supplies the pressurized air output from the air supply source 600 to the first space Us.
- the second pipe 320e communicates with the second space Ls isolated by the first bellows 320b and the second bellows 320c.
- the second pipe 320e is connected to the supply pipe Ar2 of the air supply source 600.
- the second pipe 320e supplies the pressurized air output from the air supply source 600 to the second space Ls.
- the power transmission member 320a slides in the direction of pressing the valve body 310. Then, the valve body head portion 310a is pushed forward via the valve shaft 310c, whereby the valve body head portion 310a closes the forward path 200a1 of the conveyance path, and the valve body 310 is closed.
- the power transmission member 320a slides in the direction of pulling the valve body 310.
- the valve body head 310a is pulled backward via the valve shaft 310c, whereby the valve body head 310a is separated from the forward path 200a1 of the conveyance path, and the valve body 310 is opened.
- the third bellows 325 has one end welded to the valve body head portion 310a and the other end welded to the valve body portion 310b. Thereby, the atmospheric space on the valve shaft side and the vacuum space on the transport path side are blocked. Further, the clearance between the valve body part 310b and the valve shaft 310c can be managed by supporting the valve body part 310b and the valve body head part 310a by the third bellows 325. Thus, the valve body body portion 310b and the valve shaft 310c are controlled to contact with each other during the valve body opening / closing operation so that friction is not generated.
- the bonnet 305b is provided with a purge port 330 for purging the sealed space between the bonnet 305b and the valve body drive unit 320.
- a metal gasket 335 for sealing is interposed on the contact surface between the front member 305a and the bonnet 305b and the contact surface between the bonnet 305b and the rear member 305c of the valve box 305 in order to ensure hermeticity.
- the adjustment valve apparatus 300 can be made into a structure suitable for use in a vacuum environment.
- valve body and valve seat In the regulating valve device 300 according to the present embodiment, in addition to the separation of the valve body 310 as described above, the operability and the sealing performance can be stably maintained even in a high temperature environment of about 500 ° C.
- the material, shape, and surface processing of the valve body and valve seat are optimized.
- valve body and valve seat (Material and surface treatment of valve body and valve seat) Specifically, the inventors adopted austenitic stainless steel with excellent heat resistance as the material of the valve seat surface 200a3 and the valve body 310. In addition, the inventors processed the surface of the valve body 310 with Stellite (registered trademark) finish or F2 coat (registered trademark) so that the Vickers hardness was 500 HV or more. Stellite is a stainless steel with a cobalt alloy weld pile, and F2 coating is a process of coating stainless steel with a material in which phosphorus is mixed into nickel.
- Stellite is a stainless steel with a cobalt alloy weld pile
- F2 coating is a process of coating stainless steel with a material in which phosphorus is mixed into nickel.
- the Vickers hardness of the valve body head 310a is 500 HV or more, and when F2 is coated, the Vickers hardness of the valve body head 310a is about 700 HV. Therefore, the F2 coat is more preferable than the stellite scale because of its high hardness.
- valve seat side for example, burnishing stainless steel.
- the metal surface is crushed by a roller and plastically deformed to harden the surface layer and finish the surface into a mirror surface.
- the inventors surface-treat the valve seat surface 200a3 so that the Vickers hardness is approximately 200 to 400 HV.
- the inventors set the F2 coat and Vickers hardness of the valve head 310a to 500 HV or more, and the Vickers hardness of the valve seat surface 200a3 to approximately 200 to 400 HV by seat burnishing, A hardness difference was provided between the valve body head portion 310a and the valve seat surface 200a3, and different surface hardening treatments were applied to the valve body head portion 310a and the valve seat surface 200a3. As a result, a smooth opening and closing operation of the valve body 310 was realized, and galling and image sticking were prevented.
- valve seat surface 200a3 is too hard, the crystal structure of the material forming the valve seat surface 200a3 is broken, the corrosion resistance is lowered, the material constituting the valve seat is peeled off, and it flies into the transport path.
- the Vickers hardness of the valve seat surface 200a3 is set to 400 HV or less (preferably approximately 200 to 400 HV) because it is mixed into the film forming material and causes contamination.
- the portion of the valve body head 310a that contacts the valve seat surface 200a3 has a tapered shape, and the taper opening ⁇ with respect to a line perpendicular to the tip surface of the valve body head 310a is 40 ° to 80 °.
- the reason why the taper opening ⁇ is limited to 40 ° to 80 ° is to improve the sheet property. Thereby, the valve body 310 is opened and closed more smoothly, and galling and image sticking are prevented.
- the contact portion of the valve head 310a with the valve seat surface 200a3 may be arcuate. In that case, it is preferable to have a desired radius of curvature. Thereby, the valve body 310 is opened and closed more smoothly, and galling and image sticking are prevented.
- valve body 310 when the valve body 310 is assembled and finished, by performing coaxiality and alignment (sliding) between the valve seat and the valve body, the center axis of the valve body 310 and the valve seat surface 200a3 is prevented from being displaced. Set to the finished state. In this way, by performing special surface hardening treatment and preventing galling and seizure, a regulating valve that can stably maintain operability, sealing performance and heat resistance using a valve body and a valve seat made of metal.
- the device 300 could be constructed.
- valve body 310 The inventor verified the leak state of the valve body 310 using the regulating valve device 300 having the above-described configuration. The experiment was performed both in a state in which the valve box 305 was at a high temperature of 500 ° C. and in a state in which the valve box 305 was at room temperature.
- the taper opening ⁇ of the contact portion of the valve body head 310a was 60 ° C.
- the valve head 310a is made of SUS316 stainless steel with a surface treatment of F2 coating, and the valve seat surface 200a3 is made of SUS316 stainless steel with burnishing.
- the Vickers hardness of the valve head 310a was 700 HV, and the Vickers hardness was 400 HV by seat burnishing of the valve seat (valve seat surface 200a3).
- the operating pressure (MPa) that is, the pressurized air supplied from the first pipe 320d presses the power transmission member 320a.
- MPa the pressure at the time of changing
- the leak amount was on the order of 10 ⁇ 11 (Pa ⁇ m 3 / sec) or less at all the operating pressures examined (0.20 to 0.60: MPs).
- MPa 0.25 to 0.55
- the leak amount detection result was below the minimum detection sensitivity. This indicates that the leak amount could not be detected because almost no leak occurred.
- the leakage amount was on the order of 10 ⁇ 9 (Pa ⁇ m 3 / sec) or less at the operating pressure (0.50 to 0.60: MPs). From the above, even when the temperature in the valve box is room temperature, the leakage amount is on the order of 10 ⁇ 9 (Pa ⁇ m 3 / sec) or less when the operating pressure is 0.50 to 0.60 (MPa). It was found that the amount of leakage can be further reduced at a high temperature of about 500 ° C.
- the regulating valve device 300 Compared with the conventional regulating valve device having a leak amount of about 10 ⁇ 3 to 10 ⁇ 4 (Pa ⁇ m 3 / sec), the regulating valve device 300 according to the present embodiment has the valve body 310 and the valve By optimizing the material, shape and surface processing of the seat, it was proved that the opening / closing operation of the valve body 310 can be repeated with almost no leakage.
- the organic vapor deposition material that passes through the transfer path 200a is used in an environment of high temperature and reduced pressure.
- the reason why the organic vapor deposition material is used at a high temperature will be described.
- the film-forming material (organic molecules) evaporated in the vapor deposition source unit 100 is transported to the substrate G through the transport path 200 a by the carrier gas Ar.
- the conveyance path 200a needs to be in a high temperature state of 300 ° C. or higher in order to avoid deposition of the film forming material on the inner wall of the conveyance path 200a.
- the reason why the organic vapor deposition material is used under reduced pressure is that it is desired to transport organic molecules to the substrate G with almost no contamination by making the inside of the transport path 200a in a decompressed state.
- the regulating valve device 300 according to the present embodiment when used in the organic film six-layer continuous film forming device 10, the vicinity of the valve body 310 is in a high temperature and reduced pressure state.
- leakage hardly occurs, so that the atmosphere on the valve shaft side does not flow into the conveyance path side even when the conveyance path side is in a vacuum environment.
- the regulating valve device 300 can maintain a very high hermeticity even at a high temperature of about 500 ° C. Further, by forming both the valve body side and the valve seat side from metal and adopting the separation structure of the valve body, it is possible to realize a valve mechanism capable of preventing leakage with high accuracy.
- the regulating valve device according to the present invention is used not only for opening / closing a conveyance path provided in an organic EL device, but also for a manufacturing device requiring a valve opening / closing mechanism such as a semiconductor manufacturing device or an FPD device. be able to.
- the regulating valve device according to the present invention can be used even in a high temperature state of about 500 ° C., and can be used even in a vacuum state of about 10 ⁇ 1 to 10 2 Pa.
- the working fluid supplied to the regulating valve apparatus which concerns on this invention is not restricted to this, Gas, such as inert gas, oil, etc. It may be a liquid.
- a powdery (solid) organic material can be used as a film forming material of the organic EL device according to the present invention.
- a liquid organic metal is mainly used as a film forming material, and the vaporized film forming material is decomposed on a heated object to be processed, whereby a thin film is grown on the object to be processed.
- MOCVD Metal Organic Chemical Vapor Deposition: It can also be used for organometallic vapor phase epitaxy.
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Abstract
Description
1.調整弁装置を利用する6層連続成膜装置の全体構成
2.6層連続成膜装置に係る成膜ユニットの内部構成
3.成膜ユニットに係る調整弁装置の内部構成
4.弁体及び弁座面の構造、形状、表面処理
5.リーク状態の検証
まず、本発明の一実施形態に係る調整弁装置が用いられる6層連続成膜装置について、その概略構成を示した図1を参照しながら説明する。
つぎに、図1の1-1断面を示した図2を参照しながら、成膜ユニット20の内部構造について説明する。なお、図1に示した他の5つの成膜ユニット20は、図1の1-1断面の成膜ユニット20と同一構造であるためその説明を省略する。
本実施形態にかかる6層連続成膜装置10では、図1に示したように、基板Gは1~6番目の吹き出し機構400の上方をある速度で進行する。進行中、図3に示したように、基板GのITO上に順に、第1層のホール注入層、第2層のホール輸送層、第3層の青発光層、第4層の緑発光層、第5層の赤発光層、第6層の電子輸送層が成膜される。このようにして、本実施形態にかかる6層連続成膜装置10では、第1層~第6層の有機層が連続成膜される。このうち、第3層~第5層の青発光層、緑発光層、赤発光層は、ホールと電子の再結合により発光する発光層である。また、有機層上のメタル層(電子注入層及び陰極)は、スパッタリングにより成膜される。
つぎに、図2の2-2断面を示した図4を参照しながら、搬送路200aの経路について簡単に説明する。前述したように、連結管200は、調整弁装置300を経由して気化有機分子を吹き出し機構400側へ搬送する。具体的には、調整弁装置300の弁体は成膜中には開くため、各蒸着源ユニット100にて気化された有機分子は、キャリアガスにより搬送されながら、搬送路の往路200a1から復路200a2に通され、吹き出し機構400まで搬送される。一方、調整弁装置300の弁体は成膜しないときには閉じるため、搬送路の往路200a1と復路200a2とは閉塞され、有機分子の搬送は停止させる。
次に、調整弁装置300の断面を示した図5を参照しながら、調整弁装置300の内部構成及び動作について詳述する。調整弁装置300は、円筒状の弁箱305を有している。弁箱305は、前方部材305a、中央のボンネット305b、後方部材305cの3つに分かれている。弁箱305は中空になっていて、その略中央に弁体310が内蔵されている。
弁体頭部310aの凹部310a1にも、弁軸310cが挿入された状態で遊び310a2が設けられている。本実施形態に係る弁体310では、弁体身部310bと弁体頭部310aとが分離されているので、弁体身部310bと弁軸310cとのクリアランス(隙間)を制御することにより、開閉動作時の弁体310の中心位置のずれを補正する。これに加えて、弁体頭部310aの凹部310a1に遊び310a2を設けたことにより、弁体頭部310aの軸の微少なずれを調整することができる。これにより、弁体頭部310aを弁座面200a3に偏りなく当接することにより、弁体頭部310aと弁座面200a3との密着性を高くして、リークを防ぐことができる。この結果、本実施形態に係る分離型の弁体310によれば、調整弁装置300が高温状態にて使用されたり、低温状態にて使用されたりして金属が熱膨張することによる影響が生じたとしても、弁体310の分離構造により上述したようにその影響を吸収できるため、一体型の弁体に比べて開閉時の弁体部分のリークを効果的に防ぐことができる。
本実施形態にかかる調整弁装置300では、上述したように弁体310を分離構造にしたことに加えて、500℃程度の高温環境においても操作性及びシール性を安定して維持できるように、弁体及び弁座の材質、形状及び表面加工の最適化を図っている。
具体的には、発明者らは、弁座面200a3及び弁体310の材質として、耐熱性に優れたオーステナイト系ステンレス鋼を採用した。加えて、発明者らは、弁体310の表面を、ビッカース硬さが500HV以上になるように、ステライト(登録商標)仕上げ又はF2コート(登録商標)により加工した。ステライトは、ステンレス鋼にコバルト合金系の溶接盛りを施したものであり、F2コートは、ニッケルにリンを混入させた材料にてステンレス鋼をコーティングする処理である。たとえば、ステンレス鋼をステライト盛りすると、弁体頭部310aのビッカース硬さは500HV以上になり、F2コートすると、弁体頭部310aのビッカース硬さは700HV程度になる。よって、硬度の高さからステライト盛りよりF2コートの方が好ましい。
弁体頭部310aの弁座面200a3と当接する部分はテーパ形状であり、弁体頭部310aの先端面に垂直な線分に対するテーパ開度θは40°~80°である。テーパ開度θを40°~80°に限定したのは、シート性向上のためである。これにより、弁体310をさらにスムーズに開閉し、カジリや焼き付きを防止する。
発明者は、上記構成の調整弁装置300を用いて弁体310のリーク状態について検証した。実験は、弁箱305を500℃の高温にした状態と、弁箱305を室温にした状態との両方について行われた。弁体頭部310aの当接部分のテーパ開度θは60℃とした。弁体頭部310aは、SUS316のステンレス鋼にF2コートの表面処理が施され、弁座面200a3は、SUS316のステンレス鋼にバニシング加工が施されている。弁体頭部310aのビッカース硬さは700HV、弁座(弁座面200a3)のシートバニシング加工によりビッカース硬さは400HVであった。
20 成膜ユニット
100 蒸着源ユニット
200 連結管
200a 搬送路
200a1 往路
200a2 復路
300 調整弁装置
305 弁箱
305a 前方部材
305b ボンネット
305c 後方部材
310 弁体
310a 弁体頭部
310b 弁体身部
310c 弁軸
315 シール部材
320 弁体駆動部
320a 動力伝達部材
320b 第1のベローズ
320c 第2のベローズ
320d 第1の配管
320e 第2の配管
330 パージポート
335 金属製ガスケット
400 吹き出し機構
500 隔壁板
600 エアー供給源
Claims (11)
- 弁体頭部と弁体身部とが弁軸により連結された弁体と、
前記弁軸を介して前記弁体に連結され、前記弁体に動力を伝達する動力伝達部材と、
前記弁体と前記動力伝達部材とを摺動可能に内蔵する弁箱と、
一端を前記動力伝達部材に固着し、他端を前記弁箱に固着することにより、前記動力伝達部材に対して前記弁体と反対側の位置に第1の空間を形成する第1のベローズと、
一端を前記動力伝達部材に固着し、他端を前記弁箱に固着することにより、前記動力伝達部材に対して前記弁体側の位置に第2の空間を形成する第2のベローズと、
前記第1の空間と連通する第1の配管と、
前記第2の空間と連通する第2の配管と、を備え、
前記第1の配管から前記第1の空間に供給された作動流体と前記第2の配管から前記第2の空間に供給された作動流体との比率に応じて前記動力伝達部材から前記弁軸を介して前記弁体に動力を伝達することにより、前記弁体頭部によって前記弁箱に形成された搬送路を開閉する調整弁装置。 - 前記弁軸は、前記弁体身部の長手方向の中央を貫通し、前記弁体頭部の中央に設けられた凹部に挿入される請求項1に記載された調整弁装置。
- 前記弁体頭部の中央に設けられた凹部と前記弁軸との間には、遊びが設けられている請求項2に記載された調整弁装置。
- 一端を前記弁体頭部に固着し、他端を前記弁体身部に固着することにより、前記弁軸側の空間と前記搬送路側の空間とを遮断する第3のベローズを備える請求項1に記載された調整弁装置。
- 前記弁体頭部の前記搬送路に当接する部分はテーパ形状であり、前記弁体頭部の先端面に垂直な線分に対するテーパ開度θは40°~80°である請求項1に記載された調整弁装置。
- 前記弁体頭部の前記搬送路に当接する部分は円弧状であり、所望の曲率半径を有する構造である請求項1に記載された調整弁装置。
- 前記弁体頭部は、ビッカース硬さが500HV以上になるようにステライト盛りされた金属である請求項1に記載された調整弁装置。
- 前記弁体頭部には、コバルト合金系の溶接盛りが施されている請求項7に記載された調整弁装置。
- 前記弁体頭部に当接する前記搬送路の弁座面は、シートバニシング加工によりビッカース硬さが概ね200以上400HV以下になるように表面加工された金属である請求項1に記載された調整弁装置。
- 前記調整弁装置は、被処理体を成膜する有機分子を被処理体近傍まで搬送する搬送路の開閉に用いられる請求項1に記載された調整弁装置。
- 前記調整弁装置は、内部が300℃以上になる環境下において使用される請求項10に記載された調整弁装置。
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CN2010800124964A CN102365484A (zh) | 2009-03-17 | 2010-03-08 | 调整阀装置 |
US13/138,670 US20120074339A1 (en) | 2009-03-17 | 2010-03-08 | Regulating valve device |
IL215135A IL215135A0 (en) | 2009-03-17 | 2011-09-13 | Regulating valve device |
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JP2009064546A JP5616029B2 (ja) | 2009-03-17 | 2009-03-17 | 調整弁装置 |
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JP (1) | JP5616029B2 (ja) |
KR (1) | KR20110127214A (ja) |
CN (1) | CN102365484A (ja) |
IL (1) | IL215135A0 (ja) |
TW (1) | TWI403657B (ja) |
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Cited By (1)
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CN102954283A (zh) * | 2012-10-29 | 2013-03-06 | 浙江盾安阀门有限公司 | 一种波纹管焊接组件及其生产方法 |
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JP4484227B2 (ja) | 2006-10-02 | 2010-06-16 | ボッシュ株式会社 | コモンレール |
JP2011099542A (ja) * | 2009-11-09 | 2011-05-19 | Fujikin Inc | 調整弁装置 |
EP3747310A1 (en) * | 2019-06-07 | 2020-12-09 | The Procter & Gamble Company | Filament transportation device |
JPWO2021100415A1 (ja) * | 2019-11-21 | 2021-05-27 |
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US3315700A (en) * | 1964-02-03 | 1967-04-25 | Eugene C Greenwood | Tubular jacketed double bellows valve |
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US3802660A (en) * | 1972-09-07 | 1974-04-09 | Nasa | Flow control valve |
US3871616A (en) * | 1973-12-10 | 1975-03-18 | Julian S Taylor | Gate valve disc |
JPS59129746A (ja) * | 1983-01-18 | 1984-07-26 | Mitsubishi Metal Corp | エンジンバルブおよび同バルブシ−ト用Co基合金 |
US5915410A (en) * | 1996-02-01 | 1999-06-29 | Zajac; John | Pneumatically operated positive shutoff throttle valve |
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JP3994117B2 (ja) * | 2002-11-07 | 2007-10-17 | Smc株式会社 | ヒーター付きポペット弁 |
CN2864252Y (zh) * | 2006-01-19 | 2007-01-31 | 林民东 | 刻度异型蝶阀 |
CN101012884A (zh) * | 2007-02-07 | 2007-08-08 | 株洲鸿远高压阀门有限公司 | 活动式截止阀 |
JP4948295B2 (ja) * | 2007-07-06 | 2012-06-06 | 愛三工業株式会社 | 燃料噴射弁 |
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CN102954283A (zh) * | 2012-10-29 | 2013-03-06 | 浙江盾安阀门有限公司 | 一种波纹管焊接组件及其生产方法 |
CN102954283B (zh) * | 2012-10-29 | 2014-01-08 | 浙江盾安阀门有限公司 | 一种波纹管焊接组件及其生产方法 |
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IL215135A0 (en) | 2011-12-29 |
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TWI403657B (zh) | 2013-08-01 |
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