WO2021038805A1 - オートクレーブ成形装置 - Google Patents

オートクレーブ成形装置 Download PDF

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Publication number
WO2021038805A1
WO2021038805A1 PCT/JP2019/033969 JP2019033969W WO2021038805A1 WO 2021038805 A1 WO2021038805 A1 WO 2021038805A1 JP 2019033969 W JP2019033969 W JP 2019033969W WO 2021038805 A1 WO2021038805 A1 WO 2021038805A1
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WO
WIPO (PCT)
Prior art keywords
stage
connector
support plate
temperature
connector support
Prior art date
Application number
PCT/JP2019/033969
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English (en)
French (fr)
Japanese (ja)
Inventor
優芽 井ノ口
友宏 結石
優輔 三井
富澤　猛
山本　義明
健 芦田
Original Assignee
株式会社芦田製作所
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 株式会社芦田製作所 filed Critical 株式会社芦田製作所
Priority to JP2021541908A priority Critical patent/JP7014481B2/ja
Priority to PCT/JP2019/033969 priority patent/WO2021038805A1/ja
Publication of WO2021038805A1 publication Critical patent/WO2021038805A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/04—Pressure vessels, e.g. autoclaves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/10—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
    • B29C43/12—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies using bags surrounding the moulding material or using membranes contacting the moulding material

Definitions

  • the present invention relates to an autoclave molding apparatus used for molding composite material molded products used in aircraft, automobiles and general industries.
  • a sheet-like composite material in which a reinforcing material such as carbon fiber, aramid fiber, or glass fiber is impregnated with a thermosetting resin such as an epoxy resin or phenol resin called a matrix or a thermoplastic resin is heated and pressure-molded.
  • a technique for obtaining a molded product having a desired shape examples include the autoclave molding apparatus shown in Patent Document 1 (Japanese Patent Laid-Open No. 2009-51074).
  • Patent Document 1 Japanese Patent Laid-Open No. 2009-51074
  • the composite material is covered with a heat-resistant and pressure-resistant vacuum bag together with a molding jig, and installed inside the can through an opening / closing door.
  • the air inside the can is heated by a heater to raise the temperature of the composite material to a predetermined temperature.
  • the pressure is increased by raising the temperature, and when further pressure is required, the composite material is pressed against the molding jig by the pressure difference from the inside of the vacuum bag by supplying compressed gas from the outside, and the composite material is molded. Mold into the shape of the tool.
  • the composite material is cooled and removed from the can, completing one molding cycle.
  • the opening / closing door is opened to take out the molded product after the molding is completed.
  • the internal temperature is reduced to the point where the operator can put it inside the can.
  • the operator enters the can and disconnects the fluid piping system (for example, vacuum piping) and the signal line (sensor wiring from the temperature detector).
  • the composite material of the next cycle is carried into the can body and the fluid piping system and signal lines are reconnected.
  • the opening / closing door is closed and heating and pressurization are started again.
  • the above-mentioned prior art has the following problems. That is, as described above, since the operator enters the can body of the autoclave molding apparatus to connect the fluid piping system and the signal line and disconnect them, the molded product is replaced when the autoclave molding is continuously performed. It is necessary to cool the inside sufficiently at the time of. For this reason, there is a problem that extra energy is required and molding time is lost. In addition, a walkway that allows workers to pass through is required inside the can for connecting the fluid piping system and signal lines and for the work to slow them down, which inevitably increases the diameter of the can and costs. Along with the upgrade, a large installation space is also required. Further, the connection of the fluid piping system and the signal line in the can body and the work of easing the connection by the operator are extremely complicated due to poor workability, and the work time is long.
  • an object of the present invention has been made in view of the above-mentioned problems, and the connection of the fluid piping system and the signal line and the dissolution thereof can be easily performed collectively, and as a result, the can body. It is an object of the present invention to provide an autoclave molding apparatus capable of minimizing the size and process lead time at the time of molding.
  • the autoclave molding apparatus is configured as follows. That is, a can in which the stage 20 on which the sealed body 18 in which the workpiece 12 to be molded is covered with the vacuum bag 16 together with the molding jig 14 is placed and the stage 20 on which the sealed body 18 is placed can be freely taken in and out.
  • the body 22 and the decompression means 24 installed outside the can body 22 to reduce the pressure inside the closed body 18 and the temperature of the workpiece 12 and the molding jig 14 installed outside the can body 22 are detected.
  • a control unit 28 for controlling the temperature inside the can body 22 based on a signal from the temperature sensor 26 is provided, and the workpiece 12 in the sealed body 18 housed in the can body 22 is placed in the vacuum bag 16. It is heated and pressed from the outside of the above to form a predetermined shape.
  • the inside of the closed body 18 and the decompression means 24 are communicated with each other by a fluid piping system 30, and the temperature sensor 26 and the control unit 28 are connected by a signal line 32.
  • the fluid piping system 30 is a can that connects the stage-side fluid piping system 30a that connects the inside of the sealed body 18 and the stage-side decompression connector 34, the can body-side decompression connector 36, and the decompression means 24.
  • the signal line 32 includes a stage side signal line 32a connecting the temperature sensor 26 and the stage side temperature connector 38, and a can body side signal line 32b connecting the can body side temperature connector 40 and the control unit 28. Will be done.
  • At least one of the stage side decompression connector 34 and the stage side temperature connector 38 is integrally attached to the stage side connector support plate 42 provided on the stage 20, and the can body side decompression connector 36 and the can body side temperature connector are integrally attached.
  • At least one of the 40 and the 40 is integrally attached to the can body side connector support plate 44 provided on the can body 22.
  • stage side connector support plate 42 and the can body side connector support plate 44 are directly engaged with each other.
  • the stage-side decompression connector 34 and the can body-side decompression connector 36 are automatically communicated with each other, and / or the stage-side temperature connector 38 and the can body-side temperature connector 40 are automatically connected.
  • the stage side connector support plate 42 and the can body side connector support plate 44 face each other simply by setting the stage 20 on which the sealed body 18 is placed at a predetermined position in the can body 22.
  • the stage side decompression connector 34 and the can body side decompression connector 36 are automatically communicated with each other, and the stage side temperature connector 38 and the can body side temperature connector 40 are automatically connected, so that the operator can perform the can body 22.
  • the stage side pressure reducing connector 34 and the can body side pressure reducing connector 36 can be attached and detached, and the stage side temperature connector 38 and the can body side temperature connector 40 can be attached and detached in a short time.
  • the source of the magnetic force is a permanent electromagnet 46.
  • various connectors can be firmly connected to each other without requiring a complicated mechanism.
  • the permanent electromagnet 46 it is possible to perform attachment / detachment (from attachment / detachment) and attachment / detachment (from attachment to detachment) operations by energizing the permanent electromagnet 46 only when attaching / detaching various connectors to each other. Is.
  • the permanent electromagnet 46 can maintain the connection between the connectors even in a momentary power failure due to a power failure or the like.
  • a guide means 48 for positioning the stage-side connector support plate 42 and the can body-side connector support plate 44 so that they face each other when they come close to each other.
  • the stage-side connector support plate 42 and the can body-side connector support plate 44 can be accurately opposed to each other, and various connectors can be reliably connected to each other.
  • an electromagnet or a permanent electromagnet 46 is used as the source of the magnetic force, more accurate connection can be achieved by confirming the facing positions of the connectors and then energizing the connectors.
  • the present invention adds a unique configuration described in an embodiment described later.
  • the fluid piping system and the signal line can be easily and collectively connected, and as a result, the energy required for molding can be minimized by minimizing the size of the can body. It is possible to provide an autoclave molding apparatus capable of reducing the cost of equipment including incidental equipment such as primary side power supply equipment, and further shortening the process lead time during molding processing.
  • FIG. 1 It is the schematic which shows the autoclave molding apparatus of one Embodiment of this invention. It is a partially enlarged view of the main part in FIG. It is a partial enlarged view which changed the viewing direction of the main part in FIG.
  • FIG. 1 It is a front view which shows the structural example of the connector support plate on the can body side of one Embodiment in this invention. It is a front view which shows the stage side connector support plate of one Embodiment of this invention. It is a front view which shows the connector support plate on the can body side of one Embodiment of this invention. It is a top view which shows the state which the stage side connector support plate and the can body side connector support plate of one Embodiment of this invention face each other.
  • FIG. 1 is a schematic view showing an example of the autoclave molding apparatus 10 of the present invention.
  • the autoclave molding apparatus 10 of the present embodiment generally includes a stage 20 on which a sealed body 18 in which a workpiece 12 to be molded is covered with a vacuum bag 16 together with a molding jig 14 is placed.
  • the workpiece 12 to be molded is composed of a composite material (prepreg) in which a fiber base material such as carbon fiber, aramid fiber, or glass fiber is impregnated with a thermosetting resin or a thermoplastic resin as a matrix.
  • the workpiece 12 is covered with a molding jig 14 having a predetermined shape and a vacuum bag 16 made of a material having heat resistance and water resistance such as nylon and silicone rubber to form a sealed body 18.
  • a work-side decompression connector 18a communicating with the inside thereof and a work to which wirings derived from temperature sensors 26 attached to each of the work piece 12 and the forming jig 14 are connected.
  • a side temperature connector 18b is provided.
  • the stage 20 is for transporting the sealed body 18 placed on the stage 20 into the can body 22, and in the present embodiment, the stage 20 is a metal such as steel having excellent heat resistance and mechanical strength. It is composed of a trolley having a rectangular plate-shaped table 20a made of a material, a metal lower frame 20b assembled on the lower surface of the table 20a, and wheels 20c attached to the lower four corners of the lower frame 20b. There is.
  • the table side decompression connector 21a and the table side are located at positions on the table 20a corresponding to the work side decompression connector 18a and the work side temperature connector 18b on the lower surface of the airtight body 18. Temperature connectors 21b are provided respectively.
  • the table-side decompression connector 21a is connected to the base end of the stage-side fluid piping system 30a to which the stage-side decompression connector 34 is attached (a part of the fluid piping system 30).
  • the base end of the stage side signal line 32a (which is a part of the signal line 32) to which the stage side temperature connector 38 is attached is connected to the table side temperature connector 21b. Therefore, by placing the airtight body 18 at a predetermined position on the stage 20, the work side decompression connector 18a and the table side decompression connector 21a and the work side temperature connector 18b and the table side temperature connector 21b are automatically connected and sealed.
  • the stage-side fluid piping system 30a and the stage-side signal line 32a can be connected to the body 18.
  • the lower frame 20b of the stage 20 is provided with a space in the center of the width direction of the side surface intersecting the traveling direction of the stage 20 in the can body 22, and the space is provided with the stage side pressure reducing connector 34 and the stage side.
  • a stage-side connector support plate 42 on which the temperature connectors 38 are integrated and integrally attached is arranged.
  • stage-side connector support plate 42 facing the inner side of the can body 22, and the surface on the side where the tips of the stage-side pressure reducing connector 34 and the stage-side temperature connector 38 are arranged, can be described later.
  • a pair of upper and lower guide pins 48a forming the guide means 48 in cooperation with the guide holes 48b of the body-side connector support plate 44 are provided on each of the left and right end portions.
  • the can body 22 is a substantially inverted columnar pressure vessel made of a metal such as steel that freely stores the stage 20 on which the sealed body 18 is placed.
  • An opening / closing door 22a for opening / closing an opening to the inside is attached to one end or both ends of the can body 22 in the longitudinal direction.
  • a pair of left and right rails 22b for traveling the trolley, which is the stage 20 are laid along the longitudinal direction.
  • a pair of left and right columns 22c are erected between the rails 22b in the vicinity of the opening in the can body 22, and a rectangular support frame 22d is arranged above the columns 22c.
  • coil springs 50 are attached to the inner four corners of the support frame 22d, and the can body side connector support plate 44 is attached to the support frame 22d via the coil springs 50. Therefore, the can body side connector support plate 44 is arranged on the support frame 22d in a state where it can be displaced in three-dimensional directions such as front / rear, up / down, and left / right.
  • the can body side connector support plate 44 is a plate material on which the can body side decompression connector 36 and the can body side temperature connector 40 are integrated and integrally attached. Specifically, the can body side connector support plate 44 is formed to have substantially the same size as the stage side connector support plate 42, and the tip side of the can body side decompression connector 36 and the can body side temperature connector 40 is on the can body side. It is arranged on the surface of the connector support plate 44 on the opening side of the can body 22.
  • the can body side connector support plate 44 directly engages with the stage side connector support plate 42, and the stage side pressure reducing connector 34 and the can The body-side pressure reducing connector 36 is automatically communicated with each other, and the stage-side temperature connector 38 and the can body-side temperature connector 40 are automatically connected.
  • a magnetic force for example, a permanent magnet or an electromagnet can be used, but as shown in FIGS. 5 to 8, it is particularly preferable to use a permanent magnet 46.
  • the permanent magnet 46 is formed by winding an electromagnet (electromagnet coil) around a permanent magnet (a combination of two types, one having a large coercive force and one having a small coercive force), and the energizing current when energizing the electromagnet. It is an electromagnetic attraction type or electromagnetic release type magnet that can turn on or off the magnetic force output to the outside depending on the direction. It utilizes the phenomenon that the direction of magnetization of a permanent magnet with a small coercive force can be reversed depending on the direction of the energizing current of the electromagnet. When the directions of magnetization of the two types of permanent magnets are the same, the magnetic field of the permanent magnets is output to the outside and the magnetic force is turned on.
  • an alnico magnet 54 having a small coercive force and capable of reversing the north and south poles with an electromagnet is arranged in a ring shape around the neodymium magnet 52 having a large coercive force.
  • the switching solenoid coil 56 is wound around the outer circumference of the alnico magnet 54. Then, these are surrounded by the soft magnetic material 58 and housed in a cylindrical casing 60, and the pickup coil 62 is arranged on the output surface of the magnetic force. Further, the other end of the wiring 64 whose one end is connected to the switching solenoid coil 56 is connected to the control unit 28 outside the can body 22, which will be described later.
  • the permanent electromagnet 46 is attached to the central portion of the can body side connector support plate 44, and the magnetic force output from the permanent electromagnet 46 is applied to the central portion of the stage side connector support plate 42.
  • a disk-shaped magnetic body 47 that is firmly attracted to the permanent electromagnet 46 by its magnetic force is incorporated.
  • the tip of the can body side fluid piping system 30b which is a part of the fluid piping system 30, is connected to the base end of the can body side pressure reducing connector 36 integrally attached to the can body side connector support plate 44.
  • the can body side fluid piping system 30b extends to the outside of the can body 22, and a decompression means 24 for reducing the pressure inside the closed body 18 is connected to the base end portion thereof.
  • the tip of the can body side signal line 32b which is a part of the signal line 32, is connected to the base end of the can body side temperature connector 40 integrally attached to the can body side connector support plate 44.
  • the can body side signal line 32b is also extended to the outside of the can body 22, and a heating means (not shown) is operated at the base end portion thereof based on a signal from the temperature sensor 26 to control the temperature inside the can body 22.
  • the control unit 28 is connected (see FIGS. 1 and 3). The control unit 28 not only controls the temperature inside the can body 22, but also controls the magnetic force output by the permanent electromagnet 46 when, for example, the wiring 64 of the permanent electromagnet 46 is connected and the stage 20 is taken out from the inside of the can body 22. It also controls to turn it off.
  • the autoclave molding apparatus 10 of the present embodiment has a heating means (not shown) and various auxiliary machines necessary for autoclave molding, in addition to the above-described configurations.
  • the heat source of the above-mentioned heating means is not limited to an electric heater such as a planar heater, and includes, for example, a heat source other than the electric heater such as saturated steam.
  • the workpiece 12 to be molded is covered with the vacuum bag 16 together with the molding jig 14.
  • the sealed body 18 is formed, and the sealed body 18 is pre-evacuated and then placed at a predetermined position on the stage 20 (trolley).
  • the work-side decompression connector 18a and the work-side temperature connector 18b of the airtight body 18 and the table-side decompression connector 21a and the table-side temperature connector 21b of the stage 20 are automatically connected to the airtight body 18 for stage-side fluid.
  • the piping system 30a and the stage side signal line 32a are connected.
  • the opening / closing door 22a of the can body 22 is opened, the stage 20 on which the sealed body 18 is placed is placed on the rail 22b in the can body 22, and the stage 20 is traveled to a predetermined storage position. Then, when the stage 20 reaches a predetermined storage position, the stage side connector support plate 42 (of the stage 20) and the can body side connector support plate 44 (of the can body 22) are directly engaged with each other, and at the same time, the stage The side decompression connector 34 and the can body side decompression connector 36 are automatically communicated with each other, and the stage side temperature connector 38 and the can body side temperature connector 40 are automatically connected.
  • the permanent electromagnet 46 is attached to the central portion of the can body side connector support plate 44 and the magnetic body 47 is incorporated in the central portion of the stage side connector support plate 42, the can can be used. It becomes possible to receive magnetic force assist when the distance between the body-side connector support plate 44 and the stage-side connector support plate 42 approaches to some extent, and when they are engaged, the engagement is firmly held. Can be done. Further, the stage side connector support plate 42 and the can body side connector support plate 44 are correctly positioned by the guide means 48 composed of the guide pin 48a of the stage side connector support plate 42 and the guide hole 48b of the can body side connector support plate 44. Can be engaged by facing each other with.
  • the can body side connector support plate 44 can be displaced in the three-dimensional direction by the coil spring 50. Since it is attached to the can body 22, the stage side connector support plate 42 and the can body side connector support plate 44 can be faced to each other at the correct position without stress.
  • the opening / closing door 22a of the can body 22 is closed to operate the decompression means 24, and the inside of the closed body 18 is maintained in the vacuum at the time of molding.
  • the control unit 28 sets and controls the molding conditions such as the machining temperature, the machining pressure, and the machining time inside the can body 22 to be predetermined according to the raw materials constituting the workpiece 12, and the molding process of the workpiece 12 is performed. Is performed.
  • the inside of the can body 22 is cooled to a temperature at which the molded product can be taken out, then the opening / closing door 22a is opened, the stage 20 is carried out of the can body 22, and one cycle of autoclave molding is completed. ..
  • the control unit 28 is operated to pass a current in the switching solenoid coil 56 of the permanent electromagnet 46 in the direction of reversing the magnetization of the permanent magnet having a small coercive force. Then, the magnetic field of the permanent magnet is closed inside and is not output to the outside, and the magnetic force output to the outside is turned off. As a result, the can body-side connector support plate 44 and the stage-side connector support plate 42 can be easily separated from each other, and the stage 20 can be easily carried out from the inside of the can body 22.
  • the guide means 48 is composed of a guide pin 48a and a guide hole 48b.
  • the guide means 48 includes a stage side connector support plate 42 and a can body side connector. Any type may be used as long as it can be positioned so that when the support plate 44 approaches the support plate 44 so that they face each other.
  • a positioning means by radio wave, laser, or image processing, and a stage may be in combination with an actuator that moves at least one of the side connector support plate 42 or the can body side connector support plate 44.
  • the case where the can body side connector support plate 44 is displaceably attached by the coil spring 50 in the three-dimensional direction is shown, but the can body side connector support plate 44 is displaceably attached in the three-dimensional direction. May be the stage side connector support plate 42, or both.
  • the coil spring 50 is shown as an interposition member for mounting the can body side connector support plate 44 in a displaceable manner in a three-dimensional direction, but the interposition member is not limited to the coil spring 50.
  • a ball joint, various hinges, or the like may be used.
  • the stage 20 is composed of a trolley
  • the sealed body 18 is integrally formed on the rectangular plate-shaped stage 20.
  • This may be conveyed into the can body 22 by using a conveying means such as a forklift 66 or a crane (not shown).
  • the stage-side connector support plate 42 is integrally provided at a predetermined position on the lower surface of the stage 20, and accordingly, in the can body 22, an inverted ladder-shaped mounting frame 22e is arranged instead of the rail 22b.
  • the can body side connector support plate 44 is arranged so that the contact surface with the stage side connector support plate 42 faces upward.
  • the permanent electromagnet 46 is attached to the central portion of the connector support plate 44 on the can body side and power is supplied to the permanent electromagnet 46 from the control unit 28 via the wiring 64 is shown.
  • the 46 may be attached to the central portion of the stage-side connector support plate 42 (the attachment positions of the permanent electromagnet 46 and the magnetic body 47 are reversed), and a detachable power source may be used to supply power. Since the permanent electromagnet 46 does not require a power source during operation, a detachable power source as described above can be used. Then, by using such a detachable power supply, the possibility of dielectric breakdown of the power supply due to the heat cycle can be reduced.
  • the permanent electromagnet 46 is arranged only on one side (the connector support plate 44 on the can body side), but a permanent electromagnet is used instead of the magnetic body 47 facing the permanent electromagnet 46.
  • the two permanent electromagnets may be more firmly engaged and fixed.
  • the present invention can make various changes within the range that can be assumed by those skilled in the art.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
PCT/JP2019/033969 2019-08-29 2019-08-29 オートクレーブ成形装置 WO2021038805A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2021541908A JP7014481B2 (ja) 2019-08-29 2019-08-29 オートクレーブ成形装置
PCT/JP2019/033969 WO2021038805A1 (ja) 2019-08-29 2019-08-29 オートクレーブ成形装置

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Application Number Priority Date Filing Date Title
PCT/JP2019/033969 WO2021038805A1 (ja) 2019-08-29 2019-08-29 オートクレーブ成形装置

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5862018A (ja) * 1981-10-09 1983-04-13 Kawasaki Heavy Ind Ltd 樹脂系複合材構造物の成形硬化装置
JPS61230916A (ja) * 1985-04-08 1986-10-15 Ashida Seisakusho:Kk 積層板の成形方法
JPS61290036A (ja) * 1985-06-17 1986-12-20 Ashida Seisakusho:Kk 積層板の成形方法
JPH04144717A (ja) * 1990-10-06 1992-05-19 Mitsubishi Heavy Ind Ltd オートクレーブ成形における局部加熱制御方法及び装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5862018A (ja) * 1981-10-09 1983-04-13 Kawasaki Heavy Ind Ltd 樹脂系複合材構造物の成形硬化装置
JPS61230916A (ja) * 1985-04-08 1986-10-15 Ashida Seisakusho:Kk 積層板の成形方法
JPS61290036A (ja) * 1985-06-17 1986-12-20 Ashida Seisakusho:Kk 積層板の成形方法
JPH04144717A (ja) * 1990-10-06 1992-05-19 Mitsubishi Heavy Ind Ltd オートクレーブ成形における局部加熱制御方法及び装置

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