EP0927589B1 - Elément de construction comprenant une couche de mousse métallique pour carrosseries de véhicules à moteur - Google Patents

Elément de construction comprenant une couche de mousse métallique pour carrosseries de véhicules à moteur Download PDF

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Publication number
EP0927589B1
EP0927589B1 EP98122771A EP98122771A EP0927589B1 EP 0927589 B1 EP0927589 B1 EP 0927589B1 EP 98122771 A EP98122771 A EP 98122771A EP 98122771 A EP98122771 A EP 98122771A EP 0927589 B1 EP0927589 B1 EP 0927589B1
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EP
European Patent Office
Prior art keywords
washing water
washing
blowing
molding die
unit
Prior art date
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Expired - Lifetime
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EP98122771A
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German (de)
English (en)
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EP0927589A3 (fr
EP0927589A2 (fr
EP0927589B9 (fr
Inventor
Wolfgang Seeliger
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Wilhelm Karmann GmbH
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Wilhelm Karmann GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/002—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature
    • B22F7/004—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature comprising at least one non-porous part
    • B22F7/006—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature comprising at least one non-porous part the porous part being obtained by foaming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/11—Making porous workpieces or articles
    • B22F3/1103—Making porous workpieces or articles with particular physical characteristics
    • B22F3/1109—Inhomogenous pore distribution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/11—Making porous workpieces or articles
    • B22F3/1121—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers
    • B22F3/1125—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers involving a foaming process

Definitions

  • the present invention relates to a process for washing a molding die for preparing a casting die (or core), and an apparatus therefor.
  • the casting die (or core) is prepared by a cold box process.
  • a mixture of a phenol resin composition and a polyisocyanate is compounded with a casting silica sand to prepare a casting sand.
  • the resulting casting sand is filled in a molding die.
  • a TEA i.e., triethylamine
  • a polyurethane resin arises to work as a bonding agent.
  • the bonding agent can be cured at an ordinary temperature.
  • a casting die (or core) can be prepared precisely in accordance with a cavity of the molding die.
  • the bonding agent and silica sand reside on a molding surface and in a vent hole.
  • the molding surface forms the cavity, and the vent holes are opened in the molding surface. Consequently, it is necessary to remove the bonding agent and silica sand when another high-quality casting dies should be molded by reusing the molding die.
  • the vent hole cannot be processed effectively by the first and second conventional washing processes (a) and (b). Even if the vent holes are processed by the third conventional washing process (c), the molding surface around the vent hole might be damaged, and a mesh, which is usually provided for the vent hole, might be damaged. Moreover, the mesh might make it difficult to recover the glass particles, etc. Consequently, the mesh, etc., should be replaced with new ones regularly under the current circumstances.
  • the US-A-5,544,667 discloses an apparatus for cleaning molds during the manufacture of shells or core packets that are ready for casting, by means of core shooters or shooting stations including a flushing system incorporating nozzles to spray or blast a tool set with circulating water.
  • the JP-A-58173077 discloses a method for cleaning the inside of a casting mold easily without generating dust, by spraying high-pressure water to the inside surface of the casting mold after parting, and removing the parting material.
  • the JP-A-07136602 discloses a method for cleaning a mold by jets of high-pressure water through a jetting nozzle under a discharge pressure of 3500 kgf/cm 2 , such removing foreign matter stuch on the internal surface of a stained mold.
  • the present invention has been developed in view of the aforementioned circumstances. It is therefore an object of the present invention to provide a process and an apparatus for washing a molding die for a cold box process easily and fully.
  • the inventors of the present invention made research and development extensively in order to achieve the object. First of all, they started investigating the chemical processes (1) through (21) as listed in Table 1 through Table 1 (sexies) below, and the physical processes (22) through (31) as listed in Table 2 through Table 2 (quarter) below.
  • Chemical processes (1) through (21), and physical processes (22) through (31) were evaluated in terms of quality, difficulty, washability, cost and safety. They were graded as “Excellent”, “Good”, “Fair” or “Poor” for the characteristics, and were rated in terms of overall performance as well. Note that, in the evaluation, the quality was determined based on the presence of abrasion, etc., on a molding surface of a molding die, and the quality resulted in the superiority or inferiority of a resulting casting die. The casting die was prepared herein by the molding die which had been subjected to the washing processes. Table 3 below summarizes the results of the evaluation on the chemical processes (1) through (21). Table 4 below summarizes the results of the evaluation on the physical processes (22) through (31).
  • the inventors of the present invention examined a washing agent "TOYOKNOCK" produced by TOYOTA KAGAKU KOGYO CO., LTD.
  • the washing agent worked as an alkali aqueous washing liquid.
  • the present inventors examined hexane, toluene, dichloromethane, heptane, methanol and acetone.
  • the hexane and heptane worked as a paraffin-based organic solvent.
  • the toluene worked as an aromatic organic solvent.
  • the dichloromethane worked as a chlorinated hydrocarbon organic solvent.
  • the methanol worked as an alcohol-based organic solvent.
  • the acetone worked as a ketone-based organic solvent.
  • the hexane showed somewhat satisfactory results in terms of the washing ability for the molding surface when it is pressurized to a pressure exerted by an ordinary shower. However, the hexane showed still unsatisfactory results in terms of the washing ability for the vent hole. Note that the aforementioned organic solvents are quite unsatisfactory in terms of the safety because they were poisonous or dangerous substances.
  • the inventors of the present invention aimed at making the pure water or ultra-pure water as a washing liquid. They further continued research and development to give the pure water or ultra-pure water general purpose applicability more. As a result, they completed the present invention as hereinafter described.
  • a washing process according to the present invention comprises the step of:
  • distilled water, tap water and tap water containing a rust prevention agent can be used as the washing water. It is preferred to recycle the washing water by collecting and filtering the washing water after the blowing operation.
  • the present washing process employs the washing water, the narrow areas of the molding die can be washed with ease.
  • the washing water is heated at a temperature of 70 °C or more and blown at a high pressure of 10 MPa or more.
  • the bonding agent and silica sand can be removed remarkably effectively.
  • the advantage can be verified by the evaluation tests carried out by the present inventors.
  • the present washing process is practical. In the present washing process, it is preferred to heat the washing water at a temperature of from 70 to 90 °C, and to blow the washing water at a high pressure of from 10 to 15 MPa.
  • the present washing process can shorten the time required for removing the bonding agent and silica sand, and can easily automate the removing operation by using a robot, etc.
  • the washing water employed by the present washing process hardly affects the ejector pins, etc., of the molding die adversely, little abrades the molding surface and scarcely damages the mesh provided for the vent hole. Moreover, the washing water can be collected with ease.
  • the opened molding die can preferably be tilted, thereby inhibiting the washing water from residing in the molding surface.
  • the washing water can be inhibited from blowing to the molding surface in which the washing water is resided. Consequently, the fresh washing water can be blown to the molding surface anew.
  • the temperature and pressure of the washing water can be maintained so that the bonding agent and silica sand can be removed highly effectively.
  • the washing water can preferably be blown to the molding surface of the opened molding die at varying blowing angles.
  • the molding surface is formed as a variety of configurations corresponding to a diversity of casting dies. Accordingly, with this arrangement, the washing water can be blown to spacious areas of the molding die at a wide angle so that the bonding agent, etc., can be removed in a shortened period of time. In addition, the washing water can be blown to narrow areas of the molding die at a narrow angle so that the bonding agent, etc., can be removed securely.
  • the present washing process can preferably further comprise the step of blowing highly pressurized air to the molding surface of the opened molding die after blowing the washing water thereto.
  • the washing water little resides in the molding surface. Consequently, the molding surface can be inhibited from rusting.
  • the washing water can preferably be recycled after washing the molding surface of the opened molding die, and can preferably be filtered to reuse for the washing process. With this arrangement, the washing water can be saved by recycling it.
  • a washing apparatus comprises:
  • the blowing unit can preferably be held down from a ceiling.
  • the highly pressurized washing water reflects back from the molding surface, and accordingly is likely to reside under the blowing unit as well.
  • the blowing unit is hardly immersed in the washing water. Consequently, the blowing unit can be inhibited from rusting.
  • the cold-box-process molding die can be washed easily and fully.
  • the washing apparatus comprises a base 1, a turntable 2, a holding unit 5, rollers 3 and 4, and rollers 6.
  • the turntable 2 is disposed on the base 1.
  • a molding die "W” for a cold box process is placed on the turntable 2.
  • the rollers 3 and 4 transfer the molding die “W” from the inside to the outside, or from the outside to the inside.
  • Another molding die “W” is placed in the rear of the turntable 2, another molding die “W” which has been transferred by the rollers 3 and 4 previously.
  • the rollers 6 transfer the molding die “W” to the holding unit 5 forward, or from the holding unit 5 rearward.
  • the turntable 2, the rollers 3 and 4, and the rollers 6 herein constitute a transferring unit.
  • the holding unit 5 includes a cradle 5a, and a cramp 5b.
  • the cradle 5a holds a lower die “W1" of the molding die “W”.
  • rollers 7 swing the cradle 5a in the counter clockwise direction in the drawing, thereby inverting the lower die “W1” by about 95 deg.
  • the cramp 5b holds an upper die “W2" of the molding die “W”.
  • a shaft (not shown) swings the cramp 5b in the clockwise direction in the drawing, thereby inverting the upper die "W2" by about 85 deg.
  • a washing booth 8 is formed on one side of the holding unit 5.
  • the washing booth 8 includes partition walls 7.
  • the holding unit 5 is made movable in and out of the washing booth 8 by a carriage (not shown).
  • a blowing robot 9 is held down from a ceiling in the washing booth 8.
  • the blowing robot 9 works as a blowing unit.
  • the robot 9 includes a robot arm 9a. In the robot arm 9a, there are disposed a direct injection nozzle 9b, a wide-angle nozzle 9c, and an air nozzle 9d.
  • the direct injection nozzle 9b can blow washing water at a blowing angle of 0 deg.
  • the wide-angle nozzle 9c can blow the washing water at a blowing angle of 90 deg. with respect to a molding surface of the molding die “W” by way of the control valve 10.
  • the air nozzle 9d can blow highly pressurized air to a molding surface of the molding die “W” by way of an air supplying unit (shown in Fig. 2).
  • the ceiling of the washing booth 8 is provided with a blower 11.
  • the blower 11 can evacuate the steam, which results from the washing water, to the outside.
  • the floor of the washing booth 8 is provided with a drain opening (not shown).
  • the drain opening is connected with a dirty tank 13 by way of a pipe 12 and a filter (not shown).
  • the filter has a mesh size of 40.
  • the dirty tank 13 has a capacity of 120 L.
  • the clean tank 14 has a capacity of 212 L.
  • a cloth filter 13a is disposed between the dirty tank 13 and the clean tank 14, and is changeable one after another.
  • the collected washing water is supplied from the dirty tank 13 to the clean tank 14 consecutively.
  • a valve (not shown) is further disposed in a communication hole between the dirty tank 13 and clean tank 14. The valve opens the communication hole as the washing-water level decreases in the clean tank 14.
  • the clean tank 14 originally holds the washing water including tap water therein.
  • a temperature-controlling heater (not shown) is further disposed in the clean tank 14. The heater keeps the washing water held in the clean tank 14 at about 60 °C.
  • the clean tank 14 is connected with a high-pressure plunger pump 16 by way of a pipe 15 and another filter. The high-pressure plunger pump 16 is provided for pressurizing and delivering the washing water.
  • the high-pressure plunger pump 16 is connected with the control valve 10 so as to place its outlet aperture adjacent to a flame outlet aperture of a gas burner 17. Moreover, an air-pressurizing unit 18 (shown in Fig. 2) is further connected with the blowing robot 9 by way of another valve (shown in Fig. 2). The air-pressurizing unit 18 is provided to pressurize air to blow away the washing water.
  • the dirty tank 13, and the clean tank 14 herein constitute a reservoir unit.
  • the temperature-controlling heater, and the gas burner 17 herein constitute a heating unit.
  • the high-pressure plunger pump 16 herein constitutes a washing-water pressurizing unit.
  • the blower 11, the drain opening, the pipe 12, and the pipe 15 herein constitute a circulating unit.
  • the filter cloth 13a, and the filter (not shown) herein constitute a filtering unit.
  • the turntable 2, the rollers 3 and 4, and the rollers 6, constitute the transferring unit, and are connected with a controller 19 disposed in a control panel (not shown).
  • the holding unit 5 is connected with the controller 19.
  • the gas burner 17, etc., constitute the heating unit, and are connected with the controller 19.
  • the high-pressure plunger pump 16 constitutes the washing-water pressurizing unit, and is connected with the controller 19.
  • the control valve 10, the air-pressurizing unit 18, and the blowing robot 9 are connected with the controller 19.
  • the controller 19 is further connected with an input unit 20 including switches.
  • the thus constructed washing apparatus is used to wash the molding die "W”.
  • the molding die "W” has been used to prepare a core by a cold box process.
  • an operator places the molding die “W” on the rollers 3 by using a fork-lift truck.
  • the rollers 3 are disposed on the turntable 2.
  • the operator turns on the switches of the input unit 20. Consequently, the controller 19 actuates the washing apparatus to carry out the following operations in accordance with a predetermined program.
  • a molding die “W” is transferred by the rollers 3 from the outside to the inside, and is turned by the turntable 2. Thereafter, the molding die “W” is transferred by the rollers 3 from the inside to the outside, and is further transferred by the rollers 6 to the holding unit 5 forward.
  • the turntable 2 is thus turned, another molding die “W” can be placed on the rollers 4. Accordingly, while the molding die “W” is washed, the other molding die “W” can be put into a stand-by state for the next washing operation.
  • the molding die "W” is opened. Specifically, the lower die “W1” is held by the cradle 5a, and the upper die “W2” is held and pulled up by the cramp 5b. Thereafter, as illustrated in Fig. 4, the lower die “W1” is inverted by about 95 deg, and the upper die “W2” is inverted by about 85 deg. While keeping the molding die “W” thus open, the holding unit 5 is moved into the washing booth 8.
  • the washing water is blown by the blowing robot 9 to the molding surface of the opened molding die "W".
  • the washing water is heated at a temperature of 70 °C or more, and is pressurized at a high pressure of 10 MPa or more.
  • the wide-angle nozzle 9c blows the washing water at a broad angle to the spacious areas of the molding die “W” so as to remove the bonding agent, etc., in a short period of time; and the direct injection nozzle 9b blows the washing water at a narrow angle to the narrow areas of the molding die "W” so as to securely remove the bonding agent, etc.
  • the opened molding die "W” is held and tilted by the holding unit 5.
  • the washing water is inhibited from residing in the molding surface, and the fresh washing water is blown to the molding surface anew. Therefore, the temperature and pressure of the washing water can be maintained so that the bonding agent, etc., can be removed highly effectively.
  • the narrow areas of the molding die "W" can be washed with ease.
  • the blowing robot 9 can be inhibited from being immersed in the washing water, because it is held down from the ceiling. Hence, the blowing robot 9 can be inhibited from rusting.
  • the highly pressurized air is blown to the molding surface of the molding die "W" by the air nozzle 9d.
  • the air-pressurizing unit 18 pressurizes air to a high pressure. Consequently, the washing water is blown off from the molding surface. Thus, the molding surface can be inhibited from rusting.
  • the washing water is collected into the dirty tank 13 by way of the drain opening and the pipe 12. Whilst, the steam resulting from the washing water is evacuated by the blower 11, and is also collected into the dirty tank 13. Then, the washing water is filtered by the filter cloth 13a and filter (not shown), and is recovered into the clean tank 14. Thereafter, the washing water is again heated by the temperature-controlling heater and gas burner 17, and is again highly pressurized by the high-pressure plunger pump 16. Finally, the washing water is reused for the washing operation. Hence, the washing water can be saved by recycling it.
  • the washing process employing the washing apparatus of the Preferred Embodiment can shorten the time required for removing the bonding agent, etc. Since the washing process employs the washing water, the ejector pins, etc., of the molding die "W” are hardly affected adversely, the molding surface is little abraded, and the mesh, etc., provided for the vent hole are scarcely damaged. As a result, it is apparent that the washing process can wash the molding die "W" easily and fully.
  • the washing apparatus of the Preferred Embodiment was adjusted so that it heated and blew the washing water at a temperature of 30 °C, 60 °C and 90 °C, respectively.
  • the washability was inspected visually at 10 stages so as to determine the relationship between the temperature of the washing water and the washability.
  • the results are illustrated in Fig. 6. Note that, in Fig. 6, the mark “ ⁇ " specifies the results when the washing water was pressurized at 7.84 MPa and discharged in an amount of 5 L/min.; and the mark " ⁇ " specifies the results when the washing water was pressurized at 9.80 MPa and discharged in an amount of 10 L/min.
  • Fig. 6 (A) shows the results of the washability evaluation for a vent hole provided with a mesh.
  • Fig. 6 (B) shows the results of the washability evaluation for a vent hole provided with a slit.
  • Fig. 6 (C) shows the results of the washability evaluation for a molding surface. Concerning the vent holes, the washability
  • the washing apparatus of the Preferred Embodiment was adjusted so that it pressurized and blew the washing water at a pressure of 7.84 MPa, 9.80 MPa and 14.7 MPa, respectively.
  • the washability was inspected visually at 10 stages so as to determine the relationship between the pressure of the washing water and the washability.
  • the results are illustrated in Fig. 7. Note that, in Fig. 7, the mark “ ⁇ " specifies the results when the washing water was heated at 90 °C and discharged in an amount of 10 L/min.; and the mark " ⁇ " specifies the results when the washing water was heated at 60 °C and discharged in an amount of 5 L/min. Except for these testing conditions, Evaluation Test No. 2 was carried out in the same manner as Evaluation Test No. 1.
  • the washing apparatus of the Preferred Embodiment was adjusted so that it discharged the washing water in an amount of 5 L/min., 10 L/min. and 12 L/min., respectively.
  • the washability was inspected visually at 10 stages so as to determine the relationship between the discharge amount of the washing water and the washability.
  • the results are illustrated in Fig. 8. Note that, in Fig. 8, the mark “ ⁇ " specifies the results when the washing water was pressurized at 7.84 MPa and heated at 90 °C; and the mark " ⁇ " specifies the results when the washing water was pressurized at 9.80 MPa and heated at 60 °C. Except for these testing conditions, Evaluation Test No. 3 was carried out in the same manner as Evaluation Test No. 1.
  • a molding die for a cold box process is opened after usage. Washing water is heated at a temperature of 70 °C or more, and is blown to a molding surface of the molding die at a high pressure of 10 MPa or more.
  • the cold-box-process molding die can be washed by this process easily and fully.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Laminated Bodies (AREA)
  • Motor Or Generator Frames (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Powder Metallurgy (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Claims (10)

  1. Procédé pour laver une surface de moulage d'une matrice (« W ») pour un procédé à boíte froide, comprenant les étapes suivantes consistant à :
    ouvrir une matrice de moulage (« W») pour un procédé à boíte froide après son utilisation et projeter de l'eau de lavage sur la surface de moulage à une haute pression de 10 MPa ou supérieure, l'eau de lavage étant chauffée à une température de 70 °C ou supérieure.
  2. Procédé selon la revendication 1, dans lequel la matrice de moulage ouverte (W1, W2) est inclinée, empêchant de ce fait l'eau de lavage de rester dans la surface de moulage.
  3. Procédé selon la revendication 1, dans lequel l'eau de lavage est projetée sur la surface de moulage de la matrice de moulage ouverte (W1, W2) selon différents angles de projection.
  4. Procédé selon la revendication 1 comprenant en outre l'étape de soufflage d'air sous haute pression sur la surface de moulage de la matrice de moulage ouverte (W1, W2) après la projection d'eau de lavage sur cette surface.
  5. Procédé selon la revendication 1, dans lequel l'eau de lavage est recyclée après le lavage de la surface de moulage de la matrice de moulage ouverte (W1, W2) et est filtrée pour être réutilisée dans le procédé de lavage.
  6. Appareil pour laver une matrice de moulage (« W ») pour un procédé à boíte froide, comprenant :
    une unité de maintien (5) pour maintenir une matrice de moulage ouverte (W1, W2) pour un procédé à boíte froide après son utilisation, la matrice de moulage (« W ») comprenant une surface de moulage ;
    un réservoir (13, 14) pour y mettre en réserve de l'eau de lavage ;
    une unité de chauffage (17) pour chauffer l'eau de lavage mise en réserve dans ledit réservoir (13, 14);
    une unité de mise sous pression (16) pour mettre sous pression l'eau de lavage mise en réserve dans ledit réservoir (13, 14);
    une unité de soufflage (9) pour projeter l'eau de lavage sur la surface de moulage de la matrice de moulage (« W ») maintenue dans ladite unité de maintien (5), l'eau de lavage étant chauffée à une température de 70 °C ou supérieure et mise sous pression à une haute pression de 10 MPa ou supérieure, l'unité de soufflage (9) étant connectée audit réservoir (13, 14);
    une unité de recyclage (11, 12, 15) pour recueillir l'eau de lavage après l'opération de projection et recycler l'eau de lavage dans ledit réservoir (13, 14) ; et
    une unité de filtrage (13a) pour filtrer l'eau de lavage après l'opération de soufflage.
  7. Appareil selon la revendication 6, dans lequel ladite unité de soufflage (9) est suspendue à un plafond.
  8. Appareil selon la revendication 6, dans lequel ladite unité de soufflage (9) projette l'eau de lavage selon différents angles de projection.
  9. Appareil selon la revendication 6, comprenant en outre une unité (9d) pour souffler de l'air sous haute pression sur la surface de moulage de la matrice de moulage ouvert (W1, W2) après la projection d'eau de lavage sur cette surface.
  10. Appareil selon la revendication 6, dans lequel ladite unité de maintien (5) maintient la matrice de moulage ouverte (W1, W2) dans une position inclinée.
EP98122771A 1998-01-02 1998-12-01 Elément de construction comprenant une couche de mousse métallique pour carrosseries de véhicules à moteur Expired - Lifetime EP0927589B9 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29800005U 1998-01-02
DE29800005U DE29800005U1 (de) 1998-01-02 1998-01-02 Bauteil, insbesondere Karosseriebauteil für Kraftfahrzeuge

Publications (4)

Publication Number Publication Date
EP0927589A2 EP0927589A2 (fr) 1999-07-07
EP0927589A3 EP0927589A3 (fr) 1999-07-21
EP0927589B1 true EP0927589B1 (fr) 2002-09-04
EP0927589B9 EP0927589B9 (fr) 2002-12-04

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EP98122771A Expired - Lifetime EP0927589B9 (fr) 1998-01-02 1998-12-01 Elément de construction comprenant une couche de mousse métallique pour carrosseries de véhicules à moteur

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EP (1) EP0927589B9 (fr)
AT (1) ATE223275T1 (fr)
DE (2) DE29800005U1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001000355A1 (fr) * 1999-06-23 2001-01-04 Grillo-Werke Ag Corps en mousse metallique a base de zinc
DE102004040888A1 (de) * 2004-08-24 2006-04-13 Wilhelm Karmann Gmbh Herstellung von Bauteilen mit zumindest einer metallischen Schaumlage
DE102015002561A1 (de) * 2015-02-27 2016-09-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zum Herstellen eines metallischen Verbundkörpers sowie metallischer Verbundkörper

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4277544A (en) * 1979-01-29 1981-07-07 Ipm Corporation Powder metallurgical articles and method of bonding the articles to ferrous base materials
JP3509031B2 (ja) * 1993-12-10 2004-03-22 片山特殊工業株式会社 リード付き金属多孔体の製造方法及び該方法により製造されたリード付き金属多孔体
AT405494B (de) * 1996-02-14 1999-08-25 Miba Frictec Gmbh Verfahren zum herstellen einer ebenen reiblamelle
DE19612781C1 (de) * 1996-03-29 1997-08-21 Karmann Gmbh W Bauteil aus metallischem Schaumwerkstoff, Verfahren zum Endformen dieses Bauteils und Vorrichtung zur Ausführung des Verfahrens

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Alulight-Platten", Prospekt der Firma Mepura GmbH, Juni 1996. *

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DE59805404D1 (de) 2002-10-10
EP0927589A3 (fr) 1999-07-21
EP0927589A2 (fr) 1999-07-07
DE29800005U1 (de) 1999-05-06
EP0927589B9 (fr) 2002-12-04
ATE223275T1 (de) 2002-09-15

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