WO2023037975A1 - 生産方法 - Google Patents

生産方法 Download PDF

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Publication number
WO2023037975A1
WO2023037975A1 PCT/JP2022/033104 JP2022033104W WO2023037975A1 WO 2023037975 A1 WO2023037975 A1 WO 2023037975A1 JP 2022033104 W JP2022033104 W JP 2022033104W WO 2023037975 A1 WO2023037975 A1 WO 2023037975A1
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WO
WIPO (PCT)
Prior art keywords
box
aluminum alloy
production method
alloy plate
opening
Prior art date
Application number
PCT/JP2022/033104
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
貴浩 中川
舜 ▲高▼岡
勇司 矢吹
Original Assignee
株式会社ジーテクト
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 株式会社ジーテクト filed Critical 株式会社ジーテクト
Priority to JP2023525532A priority Critical patent/JP7374385B2/ja
Priority to EP22867297.8A priority patent/EP4400226A1/en
Publication of WO2023037975A1 publication Critical patent/WO2023037975A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/208—Deep-drawing by heating the blank or deep-drawing associated with heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
    • B21D43/11—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers for feeding sheet or strip material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D11/00—Process control or regulation for heat treatments
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0025—Supports; Baskets; Containers; Covers
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/20—Storage arrangements; Piling or unpiling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/673—Quenching devices for die quenching
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/06—Charging or discharging machines on travelling carriages

Definitions

  • the present invention relates to a production method for pressing an aluminum alloy plate.
  • high-strength metal plates such as high-strength steel plates and aluminum alloy plates are used for the materials that form the parts (body parts) that make up the vehicle in order to reduce weight.
  • This type of component is produced by pressing a steel plate or an aluminum alloy plate, and hot pressing is used to press a high-strength metal plate.
  • the high-strength steel sheets are heated to 950°C and press-worked in a state in which they are changed to an austenite structure. ), it is possible to form parts with high strength (Patent Document 1).
  • a high-strength steel sheet is heated in a heating furnace, the heated high-strength steel sheet is carried out from the heating furnace, and the high-strength steel sheet carried out is conveyed to a press machine.
  • the transported high-strength steel sheet is transported to the press machine. There is no problem with press formability in the process.
  • the present invention has been made to solve the above-described problems, and aims to suppress heat loss during transportation of an aluminum alloy plate to be transported.
  • the production method includes a heating step of heating an aluminum alloy plate that has been subjected to a precipitation hardening treatment in advance to a temperature that enables press molding while maintaining the precipitation hardening, and storing the heated aluminum alloy plate in a box. , a conveying step of introducing heated air into the inside of the box to convey the aluminum alloy plate in a state in which the temperature drop is suppressed, and a pressing step of pressing the conveyed aluminum alloy plate in the conveying step.
  • the heating step heats the age-hardened aluminum alloy plate in a range from the solid solution start temperature to the hardness reduction temperature
  • the conveying step heats the aluminum alloy plate to a solid solution start temperature or higher.
  • the pressing step the aluminum alloy plate is pressed at the solid solution initiation temperature.
  • the conveying device for carrying out the conveying step includes a conveying mechanism, a box fixed to the conveying mechanism, in which the aluminum alloy plate is accommodated, and a box in which the aluminum alloy plate is unloaded from the box.
  • the box body has a first opening and a second opening provided on a surface facing the first opening, and the loading/unloading mechanism is arranged between the first opening and the second opening.
  • a conveying arm that is disposed through the box, is movable in a penetrating direction that penetrates the box, and has a holding portion that holds an aluminum alloy plate;
  • a first shielding plate and a second shielding plate attached to the transfer arm with the holding part interposed therebetween are provided so as to shield each of the first opening and the second opening.
  • the inside of the box is substantially sealed by shielding the first opening and the second opening with the first shielding plate and the second shielding plate.
  • the first shielding plate is provided in the boundary area between the holding portion and the area other than the holding portion, and has an opening/closing mechanism for opening and closing the second shielding plate.
  • each of the two transport arms in the holding part is provided with a hook that changes between a state of holding the aluminum alloy plate and a state of releasing it.
  • the box is composed of a lower box and an upper box that are connected to each other by hinges so that they can be opened and closed.
  • Two transfer arms arranged to be movable in a penetrating direction penetrating the box and protruding from the opening/closing portion of the box, and two transfer arms on the side of the opening/closing portion of the box. , and a holding mechanism for holding the aluminum alloy plate between the two transfer arms.
  • the box has an opening
  • the carry-out/carry-in mechanism includes two transfer arms housed inside the box in a state movable in a direction of discharging from the opening, and the opening.
  • two rods arranged through the box on the surface facing each other and connected to the two transfer arms so as to move the two transfer arms in and out of the box, and an opening in the box
  • a lid that can be opened and closed is provided in the box, and two transfer arms are provided on the opening side of the box, and between the two transfer arms, the aluminum alloy plate is changed between a state of holding and an open state. and a holding mechanism.
  • the box body has an open top surface
  • the carry-out/carry-in mechanism is arranged on the top side of the box body, and is movable in a direction parallel to the bottom surface of the box body.
  • a moving mechanism and a second moving mechanism for relatively moving the box and the plate between a state in which the plate closes the upper surface of the box and a state in which the plate opens in each of the state of the first position and the state of the second position.
  • a holding mechanism provided on the lower surface of the plate on the side of the box which is within the area of the box in the state of the first position, and which changes between a state of holding the aluminum alloy plate and a state of releasing it.
  • the box has a double structure.
  • the box has an exhaust port for exhausting the air introduced by the heating mechanism.
  • the conveying device further includes a cold air supply mechanism that mixes cooled air with the air discharged from the exhaust port.
  • the conveying device further includes a slow cooling box provided at the bottom of the box body, and the cool air supply mechanism is provided in the slow cooling box.
  • the transport device includes a thermometer that measures the temperature inside the box, and a controller that controls the heating mechanism based on the measurement result of the thermometer.
  • the aluminum alloy plate is accommodated in the inside of the box that is kept at a predetermined temperature by the heating mechanism and then transferred, the heat loss during the transfer of the aluminum alloy plate to be transferred is suppressed. can.
  • FIG. 1 is a flow chart explaining a production method according to an embodiment of the invention.
  • FIG. 2 is an explanatory diagram showing an example of a temperature profile in the heating process.
  • FIG. 3 is a configuration diagram showing the configuration of the conveying device of Example 1 used in the production method according to the embodiment of the present invention.
  • FIG. 4A is a plan view showing a partial configuration of the conveying device of Example 1 used in the production method according to the embodiment of the present invention.
  • 4B is a plan view showing a partial configuration of the conveying device of Example 1 used in the production method according to the embodiment of the present invention;
  • FIG. FIG. 5A is a cross-sectional view showing a partial configuration of the conveying device of Example 1 used in the production method according to the embodiment of the present invention.
  • FIG. 5B is a plan view showing a partial configuration of the conveying device of Example 1 used in the production method according to the embodiment of the present invention
  • FIG. 5C is a cross-sectional view showing a partial configuration of the conveying device of Example 1 used in the production method according to the embodiment of the present invention
  • FIG. FIG. 6A is a configuration diagram showing the configuration of the conveying device of Example 2 used in the production method according to the embodiment of the present invention.
  • FIG. 6B is a configuration diagram showing the configuration of the conveying device of Example 2 used in the production method according to the embodiment of the present invention.
  • FIG. 7A is a configuration diagram showing the configuration of the conveying device of Example 2 used in the production method according to the embodiment of the present invention.
  • FIG. 7B is a configuration diagram showing the configuration of the conveying device of Example 2 used in the production method according to the embodiment of the present invention.
  • FIG. 7C is a configuration diagram showing the configuration of the conveying device of Example 2 used in the production method according to the embodiment of the present invention.
  • FIG. 7D is a configuration diagram showing the configuration of the conveying device of Example 2 used in the production method according to the embodiment of the present invention;
  • FIG. 8A is a configuration diagram showing the configuration of the conveying device of Example 3 used in the production method according to the embodiment of the present invention.
  • FIG. 8B is a configuration diagram showing the configuration of the conveying device of Example 3 used in the production method according to the embodiment of the present invention.
  • FIG. 9A is a configuration diagram showing the configuration of a conveying device of Example 3 used in the production method according to the embodiment of the present invention.
  • FIG. 9B is a configuration diagram showing the configuration of the conveying device of Example 3 used in the production method according to the embodiment of the present invention.
  • FIG. 9C is a configuration diagram showing the configuration of the conveying device of Example 3 used in the production method according to the embodiment of the present invention.
  • FIG. 9D is a configuration diagram showing the configuration of the conveying device of Example 3 used in the production method according to the embodiment of the present invention.
  • FIG. 9E is a configuration diagram showing the configuration of the conveying device of Example 3 used in the production method according to the embodiment of the present invention.
  • FIG. 9A is a configuration diagram showing the configuration of a conveying device of Example 3 used in the production method according to the embodiment of the present invention.
  • FIG. 9B is a configuration diagram showing the configuration of the conveying device of Example 3 used in the production method according to the embodiment of the present invention.
  • FIG. 9F is a configuration diagram showing the configuration of the conveying device of Example 3 used in the production method according to the embodiment of the present invention.
  • FIG. 10A is a configuration diagram showing the configuration of a carrier device of Example 4 used in the production method according to the embodiment of the present invention.
  • FIG. 10B is a configuration diagram showing the configuration of the carrier device of Example 4 used in the production method according to the embodiment of the present invention.
  • FIG. 11A is a configuration diagram showing the configuration of a carrier device of Example 4 used in the production method according to the embodiment of the present invention.
  • FIG. 11B is a configuration diagram showing the configuration of the carrier device of Example 4 used in the production method according to the embodiment of the present invention.
  • FIG. 11C is a configuration diagram showing the configuration of the carrier device of Example 4 used in the production method according to the embodiment of the present invention.
  • FIG. 11D is a configuration diagram showing the configuration of the carrier device of Example 4 used in the production method according to the embodiment of the present invention.
  • FIG. 11E is a configuration diagram showing the configuration of the carrier device of Example 4 used in the production method according to the embodiment of the present invention.
  • FIG. 11F is a configuration diagram showing the configuration of the carrier device of Example 4 used in the production method according to the embodiment of the present invention.
  • FIG. 11G is a configuration diagram showing the configuration of the carrier device of Example 4 used in the production method according to the embodiment of the present invention.
  • FIG. 11H is a configuration diagram showing the configuration of the carrier device of Example 4 used in the production method according to the embodiment of the present invention.
  • This production method presses an aluminum alloy plate that has undergone a precipitation hardening treatment in advance, and includes a heating step S101, a conveying step S102, and a pressing step S103.
  • the aluminum alloy plate preliminarily subjected to precipitation hardening treatment is heated to a temperature at which press molding is possible while precipitating hardening is maintained.
  • the age-hardened aluminum alloy plate is heated in a range from the solid solution starting temperature to the hardness lowering temperature.
  • a plate material (aluminum alloy plate) of A7075 that has been subjected to precipitation hardening treatment of T6 material or T7 material is heated while the state of precipitation hardening is maintained.
  • the aluminum alloy plate is heated to any temperature within the range of 200° C. to 250° C. for 3 seconds to 70 seconds.
  • the heated aluminum alloy plate is stored in the box of the transporting device described above, and heated air is introduced into the inside of the box to transport the aluminum alloy plate in a state in which the temperature drop is suppressed.
  • the aluminum alloy plate is transported at a temperature equal to or higher than the solid solution starting temperature.
  • the pressing step S103 presses the aluminum alloy plate conveyed in the conveying step S102.
  • the aluminum alloy plate is pressed at the solid solution initiation temperature.
  • the precipitation-hardened aluminum alloy material made of an aluminum alloy manufactured by a sheet material manufacturer is heated in a state in which the precipitation hardening state is maintained, and the precipitation hardening state is maintained.
  • Pressing eliminates the need for an age hardening treatment after pressing by a parts manufacturer (automobile manufacturer).
  • Age hardening of pressed parts requires a large heating facility and takes a long time, which is not suitable for the production speed of automobiles.
  • the fact that age hardening treatment is not required after pressing as described above has the excellent effect that age hardened aluminum alloys can be molded at low cost and with high productivity by parts manufacturers (automobile manufacturers). be done.
  • the heated aluminum alloy plate is simply conveyed to the press machine of the pressing process, the aluminum alloy plate is cooled by air during this time, and the aluminum alloy plate does not bend in the pressing process and cracks occur. may occur.
  • the heating temperature in the heating process is increased in anticipation of the temperature drop of the aluminum alloy plate due to this air, the aluminum alloy plate will soften and the hardness of the pressed product will decrease in the aging treatment of the T6 or T7 material. It is not desirable to increase the heating temperature in the heating step in anticipation. Note that the decrease in hardness of the T7 material is more pronounced than that of the T6 material, so the T7 material is more undesirable.
  • the hardness of the pressed product after press treatment is 137HV.
  • the maximum temperature of the heating process is 230° C. and the heating time is 45 seconds, the hardness of the pressed product after press treatment is 151 HV.
  • the maximum temperature of the heating process is 225° C. and the heating time is 25 seconds, the hardness of the pressed product after press treatment is 155 HV.
  • the maximum temperature of the heating process is 195° C. and the heating time is 30 seconds, the hardness of the pressed product after press treatment is 156 HV.
  • the maximum temperature of the heating process is 195° C. and the heating time is 10 seconds, the hardness of the pressed product after press treatment is 154 HV.
  • the heating process is set to a high temperature condition, it will be easier to press, but the hardness of the pressed product will be low. Since 150 HV is a general control value for the hardness of the pressed product, the results of the above experiment show that a temperature of 255 ° C. of the aluminum alloy plate in the heating process produces a pressed product that meets the product standard (control value). It becomes the condition that cannot be done.
  • This conveying device comprises a conveying mechanism 101 and a box 102 fixed to the conveying mechanism 101 .
  • the transport mechanism 101 can be composed of a self-propelled vehicle driven by a motor or the like.
  • the transport mechanism 101 can be configured by, for example, a six-axis robot.
  • the transport mechanism 101 can also be configured by a crane or a cylinder. Further, the transport mechanism 101 can also be configured from a transport loader.
  • the box 102 is a part that accommodates an aluminum alloy plate, which is an object to be transported.
  • the box 102 can have a double structure composed of an outer box 102a and an inner box 102b.
  • the box 102 (outer box 102a, inner box 102b) can be made of, for example, stainless steel, aluminum alloy, or the like.
  • the box 102 (outer box 102a, inner box 102b) can be made of ceramics.
  • This conveying device also includes a carry-out/carry-in mechanism for carrying out the aluminum alloy plate, which is the object to be conveyed, from the box 102 and carrying it into the box 102 .
  • the loading/unloading mechanism first includes two transport arms 105 .
  • Two transport arms 105 are arranged through the box 102 between the first opening 103 and the second opening 104 .
  • the two transfer arms 105 are movable in a penetrating direction penetrating the box 102, and have holding portions 121 that hold the aluminum alloy plate to be transferred.
  • the transport arm 105 can be constructed from stainless steel, for example.
  • the transport arm 105 is slidable on the contact surfaces with the first opening 103 and the second opening 104 .
  • the two transfer arms 105 can be configured to have a plurality of sets when there are a plurality of aluminum alloy plates.
  • the transport arm 105 has a hook 109 for holding an aluminum alloy plate in the holding portion 121 .
  • the aluminum alloy plate is, for example, a plate-like member having a rectangular shape with one side of about 2000 mm in plan view.
  • hooks 109 are provided at each of the four corners of a rectangular area sandwiched between the two transfer arms 105 in a plan view.
  • a support structure (not shown) for holding the aluminum alloy plate is provided in the central portion between the two transfer arms 105 .
  • the hook 109 and the support structure can be appropriately provided according to the size of the aluminum alloy plate.
  • the hook 109 and the support structure can be detachable from the transport arm 105 .
  • a first shielding plate 106 and a second shielding plate 107 are attached to the transport arm 105 with the holding portion 121 interposed therebetween.
  • the first shielding plate 106 is provided in the boundary area between the holding portion 121 and the area other than the holding portion 121 .
  • the second shielding plate 107 is provided at the tip of the holding portion 121 in the direction in which the holding portion 121 is ejected from the box 102 .
  • the first shielding plate 106 and the second shielding plate 107 can be made of fluororubber, alumina-based ceramics, silica-based ceramics, zirconia-based ceramics, alumina-based refractory bricks, chamotte-based earthenware, or the like.
  • the first opening 103 and the second opening 104 can be shielded by the first shielding plate 106 and the second shielding plate 107 while the holding portion 121 is accommodated inside the box 102 .
  • the inside of the box 102 can be substantially sealed.
  • the first shielding plate 106 and the second shielding plate 107 can have an opening/closing mechanism.
  • the first shielding plate 106 and the second shielding plate 107 can be detachable from the two transfer arms 105 .
  • the transfer arm 105 is provided with a third shielding plate 110 .
  • the second shielding plate 107 and the third shielding plate 110 are arranged in line symmetry with the first shielding plate 106 interposed therebetween.
  • the aluminum alloy plate 151 heated in the heating furnace can be held by the holding portion 121 in the heating furnace.
  • the opening/closing mechanism of the second shielding plate 107 slides the second shielding plate 107 upward to open it.
  • the two transfer arms 105 are inserted into the heating furnace.
  • the first opening 103 and the second opening 104 are blocked by the third shielding plate 110 and the first shielding plate 106, and the box body 102 (the inner box 102b ) is substantially sealed.
  • an aluminum alloy plate 151 is held on a rod or the like, and the aluminum alloy plate 151 on the rod is held by the second shielding plate 107 in an open state. It is taken into the holding portion 121 between the two transfer arms 105 from the place where it is. In this state, by lowering the rod, the aluminum alloy plate 151 is placed on the hook 109, and the second shielding plate 107 is slid downward to be closed.
  • the hooks 109 provided on each of the two transfer arms 105 in the holding portion 121 can be provided with a mechanism that changes between the state of holding the aluminum alloy plate 151 and the state of releasing it. For example, in the heating furnace, the rod holding the aluminum alloy plate 151 is lowered, and in this state, the two transfer arms 105 are inserted into the heating furnace. At this time, the aluminum alloy plate 151 is arranged below the holding portions 121 of the two transfer arms 105 . Next, after opening the hook 109 , the rod is raised to take the aluminum alloy plate 151 into the holding portion 121 . After that, after the hooks 109 are held, the rod is lowered so that the aluminum alloy plate 151 can be placed on the hooks 109 in the held state.
  • the aluminum alloy plate 151 held by the holding portion together with the holding portion 121 is housed inside the box 102 (inner box 102b).
  • the first opening 103 and the second opening 104 are blocked by the second shielding plate 107 and the first shielding plate 106, and the inside of the box 102 (inner box 102b) is substantially sealed. .
  • this conveying device has a heating mechanism (heat-retaining mechanism) 108 that introduces heated air into the inside of the box 102 (inner box 102b) to suppress the temperature drop of the contained aluminum alloy plate.
  • the heating mechanism 108 heats (warms) the inside of the box 102 by introducing air (hot air, hot air) heated (warmed) by the heating mechanism 108 into the inside of the box 102 .
  • the heating mechanism 108 can be composed of, for example, "High temperature air heater QA type (QAO-135)" manufactured by Nippon Heater Co., Ltd. This can compress the air outside the box and flow it into the electric heater to generate heated air at a constant temperature and constant flow rate.
  • the air layer between the outer box 102a and the inner box 102b of the double-layered box 102 can enhance the heat retention of the internal space. Further, by making the box body 102 into a double structure, the surface of the outer box 102a can be maintained at a low temperature while the inside of the inner box 102b is heated, so that safety can be maintained at the production site.
  • the box body 102 is heated by the heating mechanism 108, and the air (hot air, hot air) introduced along one side wall of the inner box 102b (insulating chamber or heating chamber) ) can be provided in the center. Therefore, the heated air flows in a vortex in the heat retaining chamber (inner box 102b) and is discharged from the exhaust port 111 to the cooling chamber (slow cooling box 112) below.
  • this cooling chamber (slow cooling box 112) can further include a cold air supply mechanism for mixing cooled air (cold air, cool air) with the air (hot air, warm air) discharged from the exhaust port 111. . This avoids venting heated air to the work site.
  • a cold air supply mechanism can be provided in a slow cooling box 112 provided at the bottom of the box 102 .
  • FIG. 5A shows a cross section taken along line aa' in FIG. 5B.
  • the cold air supply mechanism includes a blower 113 passing through the box and a flow path 114 leading to the outlet of the exhaust port 111 .
  • the hot air (heated air) supplied from the heating mechanism 108 flows from the corner inside the box 102 along the wall surface, circulates in a spiral inside the box 102 (insulating chamber or heating chamber),
  • the aluminum alloy plate held by the holding part 121 is uniformly heated and discharged from the centrally arranged exhaust port 111 into the cooling chamber (slow cooling box 112).
  • the cold air supplied from the blower 113 is transported to the slow cooling box 112 through a flow path 114 provided using an L-shaped guide or pipe in a plan view, and is discharged from the central exhaust port 111 to the slow cooling box 112.
  • the discharged air mixed with cold air and gradually cooled is divided into left and right by the wall surface facing the flow path 114 and discharged to the outside from a pair of left and right discharge ports 115 provided at the bottom of the slow cooling box 112 . .
  • the outlet 115 can be arranged at a different position from the outlet 111 in plan view.
  • the discharge port 115 can be provided at a plurality of locations on the wall surface side (outside the flow path 114 ) from the central portion of the bottom of the slow cooling box 112 .
  • a check valve 116 may be provided to prevent backflow of air (cooled air) from the exhaust port 111 into the inside of the box 102 .
  • the discharge port 115 can be provided with a silencer.
  • this transport device can include a thermometer 131 that measures the temperature inside the box 102 and a controller 132 that controls the heating mechanism 108 based on the measurement result of the thermometer 131 .
  • the thermometer 131 is arranged inside the box 102 at a location that does not interfere with the carrying-in/out operation of the aluminum alloy plate by the transfer arm 105 .
  • the thermometer 131 can be provided, for example, on the bottom surface inside the inner box 102b or on the ceiling surface.
  • the thermometer 131 can be provided on the bottom surface or ceiling surface inside the inner box 102b in a region corresponding to the approximate center of the aluminum alloy plate housed in the box 102. With this configuration, it is possible to measure the temperature inside the box 102 in the vicinity of the accommodated aluminum alloy plate.
  • the thermometer 131 can be composed of, for example, a thermocouple.
  • the controller 132 controls the operation of the heating mechanism 108 so that the measurement result of the thermometer reaches the set target temperature. For example, the correlation between the temperature measurement result of the thermometer 131 and the temperature of the contained aluminum alloy plate is obtained by experiment or the like, and the result is reflected in the control by the controller 132, thereby achieving more accurate temperature control. becomes possible.
  • the aluminum alloy plate 151 is held (carried in) in the holding portion 121 in the first state shown in FIG. 4A.
  • the holding portion 121 holding the aluminum alloy plate 151 is housed inside the box 102 (inner box 102b) which is heated to a predetermined temperature by the heating mechanism .
  • the transport mechanism 101 is operated to transport the aluminum alloy plate 151 to a predetermined location (for example, press machine).
  • the first state shown in FIG. 4A is established, and the aluminum alloy plate 151 can be taken out (carried out) from the holding portion 121 . Therefore, according to this conveying apparatus, the aluminum alloy plate 151 is housed inside the box 102 (inner box 102b), which is kept at a predetermined temperature during conveyance between the heating process and the pressing process. Loss can be suppressed.
  • the inside of the box 102 which is kept warm (heated) at a predetermined temperature by the heating mechanism 108, is approximately the same in both the first state shown in FIG. It is closed. Therefore, even if the first state and the second state are switched when the aluminum alloy plate 151 is carried out and carried in, the temperature fluctuation inside the box 102 can be suppressed.
  • a control system including a thermometer 131 and a controller 132, it is possible to bring the temperature change inside the box 102 to almost zero during transportation.
  • the temperature drop of the aluminum alloy plate is suppressed by introducing heated air into the inside of the box by the heating mechanism 108, heat is Since the heated air containing the loss is replenished, the temperature fluctuation inside the box 102 can be suppressed.
  • the plate material to be pressed is heated in a heating furnace to obtain hardness. After heating to about 200 to 250° C., which is the upper limit temperature at which the temperature does not decrease, and taken out from the heating furnace, it is conveyed to a press while being exposed to the surrounding air and press-molded. If this transfer takes 20 seconds, for example, the temperature drops by about 10 to 15.degree. When the temperature is lower than 200° C., which allows for molding, the press conditions are no longer satisfied, cracks occur, and molding defects occur.
  • the temperature drop of the aluminum alloy plate was suppressed by introducing heated air into the inside of the box.
  • the temperature fluctuation of the aluminum alloy plate during the transfer process between the heating process and the pressing process was almost zero.
  • the size of the box is enough to accommodate the aluminum alloy plate.
  • the heating energy of the heating mechanism can be reduced, the transport mechanism can be made smaller, and the temperature inside the box can be maintained without increasing the cost.
  • Example 2 a conveying device of Example 2 used in the production method according to the embodiment of the present invention will be described with reference to FIGS. 6A and 6B.
  • This transport device includes a transport mechanism (not shown) and a box 202 fixed to the transport mechanism.
  • the transport mechanism is the same as that of the first embodiment described above, and for example, the box 202 is fixed on the transport mechanism (not shown).
  • a heating mechanism (not shown) is provided to introduce heated air into the inside of the box 202 to suppress the temperature drop of the aluminum alloy plate.
  • the heating mechanism heats (warms) the inside of the box 202 by introducing air (hot air, hot air) heated (warmed) by the heating mechanism into the inside of the box 202 .
  • the box body 202 is composed of a lower box 202a and an upper box 202b connected by hinges 203 so that they can be opened and closed. Further, the box body 202 has a double structure, and includes an inner lower box 206a and an inner upper box 206b inside the lower box 202a and the upper box 202b.
  • this conveying device is provided with two conveying arms 204 that are movable in the penetrating direction penetrating the box 202 .
  • 6A schematically shows a cross section parallel to the direction in which the two transport arms 204 extend
  • FIG. 6B schematically shows a cross section perpendicular to the direction in which the two transport arms 204 extend. showing.
  • the two transfer arms 204 are arranged to pass through the box 202 from the surface where the hinges 203 are provided, and can protrude from the opening/closing portion of the box 202 .
  • the two transport arms 204 also have a holding mechanism 205 for holding the aluminum alloy plate 251 between the two transport arms 204 .
  • the holding mechanism 205 can be, for example, a clamp.
  • the two transfer arms 204 and the holding mechanism 205 constitute a loading/unloading mechanism.
  • the two transfer arms 204 are slid toward the opening/closing portion of the box 202, and as shown in FIG. 7B, The two transfer arms 204 are discharged from the opening/closing portion of the box 202 .
  • the aluminum alloy plate 251 can be held by the holding mechanism 205 .
  • the aluminum alloy plate 251 heated in a heating furnace (not shown) can be held in the heating furnace by the holding mechanism 205 .
  • the two transfer arms 204 are inserted into the heating furnace while the two transfer arms 204 are discharged from the opening/closing portion of the box 202 .
  • an aluminum alloy plate 251 is held on a rod (not shown) or the like, and the aluminum alloy plate 251 on the rod is transferred to the two transfer arms 204 inserted.
  • the aluminum alloy plate 251 can be held by the holding mechanism 205 .
  • the aluminum alloy plate 251 held by the holding mechanism 205 is moved to the heating furnace by sliding the two transfer arms 204 to the hinge 203 side. , and carried into the inside of the box 202 .
  • the aluminum alloy plate 251 can be accommodated as shown in FIG. 7D.
  • a conveying mechanism (not shown) is operated to convey the aluminum alloy plate 251 to, for example, a press machine.
  • the opening state of the lower box 202a and the upper box 202b and the sliding operation of the two conveying arms 204 described with reference to FIGS. 7A and 7B are performed.
  • the aluminum alloy plate 251 held by the holding mechanism 205 can be carried into the pressing machine. Therefore, according to this conveying apparatus, the aluminum alloy plate 251 is accommodated inside the box 202 which is maintained at a predetermined temperature during conveyance, so heat loss can be suppressed.
  • Example 3 a conveying device of Example 3 used in the production method according to the embodiment of the present invention will be described with reference to FIGS. 8A and 8B.
  • This transport device includes a transport mechanism (not shown) and a box 302 fixed to the transport mechanism.
  • the transport mechanism is the same as in the first and second embodiments described above, and for example, the box 302 is fixed on the transport mechanism (not shown).
  • a heating mechanism (not shown) is provided to introduce heated air into the inside of the box 302 to suppress the temperature drop of the aluminum alloy plate.
  • the heating mechanism heats (warms) the inside of the box 302 by introducing air (hot air, hot air) heated (warmed) by the heating mechanism into the inside of the box 302 .
  • the box 302 has an opening 303. Further, the box 302 has a double structure and includes an outer box 302a and an inner box 302b.
  • the transport device also includes two transport arms 304 housed inside the box 302 so as to be movable in the discharge direction from the opening 303 .
  • 8A schematically shows a cross section parallel to the direction in which the two transfer arms 304 extend
  • FIG. 8B schematically shows a cross section perpendicular to the direction in which the two transfer arms 304 extend. showing.
  • two arms are arranged through the box body 302 on the surface facing the opening 303 and are connected to the two transport arms 304 so that the two transport arms 304 can be moved in the direction of taking the two transport arms 304 into and out of the box body 302 .
  • with a bar 305 of Two transfer arms 304 and two rods 305 constitute a loading/unloading mechanism.
  • a holding mechanism 307 is provided on the two transport arms 304 on the side of the opening 303 of the box 302 .
  • the holding mechanism 307 changes between a state of holding the aluminum alloy plate 351 and a state of releasing it between the two transfer arms 304 .
  • the opening 303 of the box 302 is provided with a lid 306 that can be opened and closed.
  • a wire 309 is connected to a wire fixing portion 308 fixed to the lid 306 .
  • the wire 309 is hooked on a fixed pulley 310 and connected to a wire winding mechanism (not shown).
  • the wire 309 is wound up by a wire winding mechanism (not shown) to open the lid 306 as shown in FIG. 9A.
  • the two transfer arms 304 are ejected from the box 302 by pushing out the two rods 305 by a moving mechanism (not shown).
  • the aluminum alloy plate 351 can be held by the holding mechanism 307 as described later.
  • the two transfer arms 304 are inserted into the heating furnace while being ejected from the opening 303 of the box 302 .
  • an aluminum alloy plate 351 is held on a rod 311 as shown in FIG. 9C.
  • the aluminum alloy plate 351 on the rod 311 is placed between the two inserted transfer arms 304, for example, by lowering the rod 311, the aluminum alloy plate 351 is held as shown in FIGS. 9D and 9E.
  • a holding state can be set by the mechanism 307 .
  • the two rods 305 are pulled back by a moving mechanism (not shown), thereby moving the two transfer arms 304 to the box body 302 (inner box 302b). pull back. Further, by winding down the wire 309 with a wire winding mechanism (not shown), the lid 306 is closed as shown in FIG. 9F.
  • the aluminum alloy plate 351 held by the holding mechanism 307 can be carried out of the heating furnace and carried into the box 302 (the inner box 302b), and the aluminum alloy plate 351 can be accommodated in the box 302. can.
  • the conveying mechanism (not shown) is operated to convey the aluminum alloy plate 351 to, for example, a press machine.
  • the holding mechanism 307 is opened by performing the same opening operation of the lid 306 and sliding operation of the two transfer arms 304 described with reference to FIGS. 9A and 9B.
  • the aluminum alloy plate 351 held by can be carried into the pressing machine. Therefore, according to this conveying apparatus, the aluminum alloy plate 351 is accommodated inside the box 302 which is kept at a predetermined temperature during conveyance, so heat loss can be suppressed.
  • Example 4 a conveying apparatus of Example 4 used in the production method according to the embodiment of the present invention will be described with reference to FIGS. 10A and 10B.
  • This transport device includes a transport mechanism (not shown) and a box 402 fixed to the transport mechanism.
  • the transport mechanism is the same as in the first, second, and third embodiments described above, and for example, the box 402 is fixed on the transport mechanism (not shown).
  • the upper surface of the box 402 is open.
  • the box body 402 has a double structure and includes an outer box 402a and an inner box 402b.
  • a plate 403 arranged on the upper surface side of the box 402 is provided.
  • the plate 403 is movable in a direction parallel to the bottom surface of the box 402 , can close the top opening of the box 402 , and functions as a lid that closes the top opening of the box 402 .
  • 10A schematically shows a cross section of the plate 403 parallel to the moving direction parallel to the bottom surface of the box 402
  • FIG. 10B shows a cross section perpendicular to the moving direction parallel to the bottom surface of the box 402. is schematically shown.
  • the plate 403 can be moved between a first position and a second position that are different relative to the box 402 in a direction parallel to the bottom surface of the box 402 by a first moving mechanism (not shown). ing. Further, the box 402 and the plate 403 are opened and closed with the plate 403 in each of the above-described first position state and second position state by a second moving mechanism (not shown). It is made movable relative to the state.
  • this conveying device is provided with a holding mechanism 404 on the lower surface of the box 402 side of the plate 403 which is within the region of the box 402 in the state of the first position.
  • the holding mechanism 404 changes between a state of holding the aluminum alloy plate and a state of releasing it.
  • the holding mechanism 404 includes, for example, hooks 405 .
  • a heating mechanism (not shown) is provided that introduces heated air into the interior of the box 402 to suppress the temperature drop of the aluminum alloy plate.
  • the heating mechanism heats (warms) the inside of the box 402 by introducing air (hot air, warm air) heated (warmed) by the heating mechanism into the inside of the box 402 .
  • the box 402 can be opened by raising the plate 403 and separating it from the upper surface of the box 402 by a second moving mechanism (not shown).
  • the first moving mechanism moves the plate 403 in a direction parallel to the bottom surface of the box 402, and the second moving mechanism (not shown) lowers the plate 403 to abut on the top surface of the box 402. .
  • the region of the plate 403 where the holding mechanism 404 is provided is arranged outside the box 402 .
  • the area where the holding mechanism 404 of the plate 403 is provided is inserted into the heating furnace.
  • an aluminum alloy plate 451 is held on a rod (not shown) in the heating furnace in which the region where the plate 403 is provided with the holding mechanism 404 is inserted.
  • the aluminum alloy plate 451 on the rod is arranged below the area where the holding mechanism 404 of the inserted plate 403 is provided, and the holding mechanism 404 is opened.
  • the holding mechanism 404 is opened, for example, the transport mechanism lowers the box 402 and the plate 403, and the holding mechanism 404 is arranged on both sides of the aluminum alloy plate 451. As shown in FIGS. 11D and 11E, The holding mechanism 404 is brought into a state of holding the aluminum alloy plate 451 .
  • the second moving mechanism (not shown) lifts the plate 403 away from the upper surface of the box 402 (FIG. 11F), and then By moving the plate 403 in a direction parallel to the bottom surface of the box 402 by the first moving mechanism, the area of the plate 403 where the holding mechanism 404 is provided is moved above the box 402 (FIG. 11G). Further, the plate 403 is lowered by the second moving mechanism (not shown) to come into contact with the upper surface of the box 402 . As a result, as shown in FIG. 11H, the aluminum alloy plate 451 held by the holding mechanism 404 is unloaded from the heating furnace and carried into the box 402 (inner box 402b) to hold the aluminum alloy plate 451 in the box. It can be housed in body 402 .
  • the conveying mechanism (not shown) is operated to convey the aluminum alloy plate 451 to, for example, a press.
  • the aluminum alloy plate 451 After conveying the aluminum alloy plate 451 to the press in this way, the aluminum alloy held by the holding mechanism 404 is lifted and slid in the same manner as the lid 306 is lifted and slid as described with reference to FIGS. 11A and 11B. A plate 451 can be loaded into the press. Therefore, according to this conveying apparatus, the aluminum alloy plate 451 is accommodated inside the box 402 which is kept at a predetermined temperature during conveyance, so heat loss can be suppressed.
  • a contact heating furnace can be used for the heating process described above. It has high heat uniformity, can easily handle large and small blank shapes, and can be mass-produced due to its simple equipment. It is suitable for heating an age-hardened aluminum alloy plate to a press forming temperature without lowering its hardness.
  • the contact heating furnace can be set up with upper and lower plates that approach and separate from each other with a servomotor so as to sandwich the work, and that are load value controlled and temperature controlled. Since both sides of the workpiece are in close contact with each other and uniformly heated, uniform rapid heating is possible, minimizing the thermal effect (hardness reduction) on the workpiece.
  • multiple boxes and heating furnaces can be arranged in parallel. Since the pressing time is shorter than the heating time (in the example, the heating time is 60 seconds and the bottom dead center holding time is 10 seconds), the total production speed can be improved by preparing a plurality of time-consuming devices. Parallel alignment improves space efficiency and streamlines transportation.
  • the aluminum alloy plate is stored in the inside of the box that is kept at a predetermined temperature by the heating mechanism and then transported, the heat loss during transport of the aluminum alloy plate to be transported is reduced. can be suppressed. Therefore, it is possible to hot press without reducing the strength and hardness of aluminum alloy sheets that have been precipitation hardened in advance to increase their strength and hardness. does not reduce sexuality.
  • the heated aluminum alloy plate is stored in a box, and heated air is introduced into the inside of the box to transfer the aluminum alloy plate in a state in which the temperature drop is suppressed.
  • the temperature drop during transportation can be suppressed even in a narrow temperature range (200 to 250° C. in the case of 7000 series T7 treatment) between the upper limit temperature at which the hardness does not decrease and the lower limit temperature at which press molding can be performed. Therefore, in the next press step, press molding can be performed without lowering the hardness.
  • Precipitation hardening is applied to the raw material prior to the heating process, eliminating the need for artificial aging hardening at the stamping site.
  • heated air is introduced into the inside of the box, it is possible to control the temperature to a constant level by compensating for the heat loss caused by taking the aluminum alloy plate in and out of the box.
  • [Appendix 1] a heating step of heating an aluminum alloy plate that has been subjected to precipitation hardening treatment in advance to a temperature that allows press molding while maintaining precipitation hardening; A conveying step of accommodating the heated aluminum alloy plate in a box and introducing heated air into the box to convey the aluminum alloy plate in a state in which a decrease in temperature is suppressed; and a pressing step of pressing the aluminum alloy plate conveyed in the conveying step.
  • the conveying device that carries out the conveying step includes: a transport mechanism; the box fixed to the transport mechanism and containing the aluminum alloy plate; a loading/unloading mechanism for loading/unloading the aluminum alloy plate from the box and loading/unloading the aluminum alloy plate into the box; A production method comprising: a heating mechanism that introduces heated air into the inside of the box body to suppress a temperature drop of the aluminum alloy plate.
  • the box has a first opening and a second opening provided on a surface facing the first opening
  • the loading/unloading mechanism is A transfer arm that is arranged to penetrate the box between the first opening and the second opening, is movable in a penetrating direction that penetrates the box, and has a holding portion that holds the aluminum alloy plate. and, A first shielding plate attached to the transfer arm with the holding part interposed therebetween so as to shield each of the first opening and the second opening in a state in which the holding part is housed inside the box. and a second shielding plate.
  • Appendix 7 In the production method according to any one of Appendices 4 to 6, A production method, wherein two transport arms are provided, and each of the two transport arms in the holding unit is provided with a hook that changes between a state of holding the aluminum alloy plate and a state of releasing the aluminum alloy plate.
  • the box body is composed of a lower box and an upper box that are connected by hinges so as to be openable and closable
  • the loading/unloading mechanism is Two transfer arms arranged to penetrate the box from the surface on which the hinge is provided, movable in a penetrating direction penetrating the box, and protruding from the opening/closing portion of the box. and, a holding mechanism provided on the two transfer arms on the side of the opening/closing part of the box, the holding mechanism holding the aluminum alloy plate between the two transfer arms.
  • the box has an opening
  • the loading/unloading mechanism is two transfer arms housed inside the box in a state movable in the direction of discharging from the opening;
  • Two rods are arranged to penetrate the box on the surface facing the opening, and are connected to the two transfer arms so as to be movable in a direction in which the two transfer arms are taken in and out of the box. and, a lid that is openable and closable at the opening of the box; a holding mechanism provided on the two transfer arms on the side of the opening of the box, the holding mechanism changing between a state of holding the aluminum alloy plate and a state of releasing the aluminum alloy plate between the two transfer arms.
  • a production method characterized by:
  • the box has an open upper surface
  • the loading/unloading mechanism is a plate disposed on the upper surface side of the box, movable in a direction parallel to the bottom surface of the box, and capable of closing the opening of the upper surface of the box; a first moving mechanism for moving the plate between a first position and a second position having different positions relative to the box in a direction parallel to the bottom surface of the box; In each of the state of the first position and the state of the second position, a second position for relatively moving the box and the plate between a state in which the plate closes the upper surface of the box and a state in which the plate opens.
  • a production method characterized by:
  • Appendix 12 In the production method according to any one of Appendices 3 to 11, The production method, wherein the box has an exhaust port for exhausting the air introduced by the heating mechanism.
  • the conveying device is A production method, further comprising a cold air supply mechanism for mixing cooled air with the air discharged from the exhaust port.
  • the conveying device is A production method, further comprising a slow cooling box provided at a lower portion of the box body, wherein the cool air supply mechanism is provided in the slow cooling box.
  • the conveying device is a thermometer for measuring the temperature inside the box; and a controller that controls the heating mechanism based on the measurement result of the thermometer.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
PCT/JP2022/033104 2021-09-07 2022-09-02 生産方法 WO2023037975A1 (ja)

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Citations (4)

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JP2003213397A (ja) * 2002-01-23 2003-07-30 Taiyo Seiko Kk 溶融亜鉛−アルミ合金メッキ鋼板の製造方法
JP4094473B2 (ja) 2003-04-18 2008-06-04 新日本製鐵株式会社 高温成形後硬化能に優れた熱間成形加工用鋼板およびその使用方法
JP2021062407A (ja) * 2020-12-25 2021-04-22 株式会社ジーテクト アルミニウム合金の成形方法
WO2022045069A1 (ja) * 2020-08-28 2022-03-03 日本製鉄株式会社 プレス成形品の製造方法、並びに、プレス成形品の製造に用いられるトレイ及び熱間プレス製造ライン

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JP4673656B2 (ja) * 2005-04-11 2011-04-20 新日本製鐵株式会社 熱間プレス成形装置
JP5201003B2 (ja) * 2008-04-30 2013-06-05 新日鐵住金株式会社 熱間プレス成形用鋼板の加熱装置及び加熱方法
JP6262959B2 (ja) * 2013-08-23 2018-01-17 川崎重工業株式会社 アルミニウム合金部品の製造方法およびアルミニウム合金板のプレス成形装置
JP2015080796A (ja) * 2013-10-22 2015-04-27 ダイハツ工業株式会社 熱間プレス成形設備
JP2016059926A (ja) * 2014-09-16 2016-04-25 ダイハツ工業株式会社 熱間プレス加工用板金材の搬送装置
JP7225892B2 (ja) * 2019-02-18 2023-02-21 日本製鉄株式会社 トレイ及び熱間プレスライン

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Publication number Priority date Publication date Assignee Title
JP2003213397A (ja) * 2002-01-23 2003-07-30 Taiyo Seiko Kk 溶融亜鉛−アルミ合金メッキ鋼板の製造方法
JP4094473B2 (ja) 2003-04-18 2008-06-04 新日本製鐵株式会社 高温成形後硬化能に優れた熱間成形加工用鋼板およびその使用方法
WO2022045069A1 (ja) * 2020-08-28 2022-03-03 日本製鉄株式会社 プレス成形品の製造方法、並びに、プレス成形品の製造に用いられるトレイ及び熱間プレス製造ライン
JP2021062407A (ja) * 2020-12-25 2021-04-22 株式会社ジーテクト アルミニウム合金の成形方法

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