EP0424561A1 - Dispositif pour imprégner des objets en matière poreuse - Google Patents

Dispositif pour imprégner des objets en matière poreuse Download PDF

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Publication number
EP0424561A1
EP0424561A1 EP89119784A EP89119784A EP0424561A1 EP 0424561 A1 EP0424561 A1 EP 0424561A1 EP 89119784 A EP89119784 A EP 89119784A EP 89119784 A EP89119784 A EP 89119784A EP 0424561 A1 EP0424561 A1 EP 0424561A1
Authority
EP
European Patent Office
Prior art keywords
container
impregnation
vibrators
autoclave
impregnating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP89119784A
Other languages
German (de)
English (en)
Inventor
Hubert Ing. Maldaner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ing Hubert Maldaner GmbH
Original Assignee
Ing Hubert Maldaner GmbH
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 Ing Hubert Maldaner GmbH filed Critical Ing Hubert Maldaner GmbH
Priority to EP89119784A priority Critical patent/EP0424561A1/fr
Priority to JP28694490A priority patent/JPH03216302A/ja
Publication of EP0424561A1 publication Critical patent/EP0424561A1/fr
Priority to US07/840,663 priority patent/US5288521A/en
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/003—Treating of wood not provided for in groups B27K1/00, B27K3/00 by using electromagnetic radiation or mechanical waves
    • B27K5/006—Vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
    • B27K3/10—Apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/30—Drying; Impregnating

Definitions

  • the invention relates to a method for impregnating workpieces made of porous material, in which the workpiece is brought into a closed space such as an autoclave and this autoclave is subsequently evacuated and in which impregnating agent is introduced into the autoclave after the evacuation. Furthermore, the invention relates to a device for impregnating workpieces made of porous material, with a container which can be closed by a lid, with a discharge line for air, with a vacuum pump and with a supply line for impregnation agent.
  • the cavities in a porous, solid body should be filled with impregnating agent.
  • the impregnating agent is a liquid.
  • the penetration of the pores, insofar as they are open to the outside, is essentially caused by capillary forces. It only takes place completely if all gases have previously been removed from the solid body and from the impregnating liquid by evacuation.
  • the impregnation is used in many ways.
  • woods such as power poles and pit timbers are impregnated with aqueous salt solutions or tar oils to protect them against rotting and animal pests.
  • Polyacrylates are mainly used as impregnating agents, since impregnating agents based on polyester and phenolic resin are rarely used due to their environmentally harmful properties.
  • the invention can be used in particular for metal impregnation. For efficient production, it is necessary that the impregnation process be completed quickly.
  • the object of the invention is to improve the aforementioned method for impregnating workpieces made of porous material so that the impregnation process can be completed faster than before.
  • the workpieces are vibrated with the impregnation container. It has been found that the impregnation process can be significantly accelerated as the impregnation agent then penetrates faster into the pores or spaces between the workpieces to be impregnated. Surprisingly, the impregnating agent penetrates so deep into the workpieces after a very short time that a high-quality impregnation is achieved at low cost.
  • the device for carrying out the method according to the invention consists of an autoclave or similar container which can be closed by a lid and in which a discharge line for air and a supply line for impregnating agents are provided.
  • the evacuation is done with the help of a vacuum pump.
  • such a device has one or more vibrators.
  • the vibrator or vibrators are provided on the outer wall of the container.
  • the vibrations are caused by the Apply impregnating agent to the workpiece. This arrangement has the advantage that the vibrator itself does not come into contact with the impregnating agent and thus there is no risk of contamination or even destruction.
  • the working frequency of the vibrators is equal to the natural frequency of the entire device. Then the impregnation process takes place particularly quickly.
  • FIGS. 1 and 2 exemplary embodiments of the device according to the present invention being shown in FIGS. 1 and 2.
  • the impregnation containers can be arranged both vertically and horizontally. In practice, vertical impregnation containers are used for workpieces and charging baskets up to approx. 2 to 3 m high. Long workpieces, e.g. Lumber, telephone poles and the like are preferably treated in horizontally arranged impregnation containers.
  • the invention can be used successfully for both systems.
  • All containers to which the invention is to be applied must be mounted on vibrating elements so that the vibrations generated can be transmitted to the entire container.
  • Figure 1 shows a vertical impregnation container.
  • the device consists of an impregnation container (1) which can be sealed with a lid (2).
  • a lid seal (3) is embedded in a groove and serves to seal between the container (1) and lid (2).
  • a closure for the lid is not necessary. If, on the other hand, vacuum and pressure are used alternately, the lid must be closed. Bayonet locks are generally used for this. The use of eyebolts is possible, but in many cases not economically and therefore hardly in use today.
  • the lid (3) is attached to a lid bracket (4) which is rotatably mounted in a lid hinge (5).
  • the cover can be opened and closed by means of a pneumatic cylinder (6) and an extendable piston rod (17).
  • the lid is often operated manually.
  • a counterweight is often attached to the cover bracket (4).
  • the container stands on three or four feet (7).
  • Three level control devices (8) for controlling and checking the level of the impregnation liquid are attached to the side of the container jacket.
  • one or more vibrators (13) are attached to the side of the container, which vibrate the container and its contents. These vibrators can be operated mechanically or electromagnetically.
  • the container (1) is mounted on vibrating elements (14) so that the vibrations generated are fully effective.
  • a bellows (15) is provided in the pipe (9), which creates a flexible connection to the pipe system, not shown, and to the storage container, also not shown.
  • FIG 2 shows a horizontal impregnation container.
  • This device consists of an impregnation container (18) which can be tightly closed with a lid (19).
  • a lid seal (20) is embedded in a groove in the container ring and serves to seal between the container (18) and the lid (19).
  • the container (18) is provided with a bayonet lock (22) into which the lid (19) engages and which is closed by a rotary movement.
  • the lid (19) is fastened to a swivel device (21) and can thus be turned sideways so that the container opening is free for loading and unloading.
  • the container (18) is mounted on two bases (23 and 24) so that a slight inclination of max. 5 o falling to the bottom of the container.
  • a pipe connection for a filling line (9) is attached in the bottom of the container.
  • a dome (16) is attached to the container (18), on which a pipe connection (11) for a connecting hose (12) to a vacuum pump is attached.
  • Three level control devices (8) are attached to the tank bottom and the dome for level control of the impregnation liquid.
  • One or more pairs of vibrators (13) are attached to the side of the container and vibrate the container with its contents. These vibrators can be operated mechanically or electromagnetically.
  • the container is mounted on vibrating elements (14) so that the vibrations generated are fully effective.
  • a bellows (15) is provided in the pipe line (9), which creates a flexible connection to the pipe system, not shown, and to the storage container, also not shown.
  • the method according to the invention is carried out by introducing the workpieces to be impregnated into the impregnation container (1) or (18).
  • the workpieces should be free of grease and dry.
  • the container is evacuated via the pipe connection (11) by means of a vacuum pump. It should be ensured that a high vacuum is achieved in the shortest possible time.
  • the shut-off valve (10) in the filling line (9), the impregnating agent is introduced into the impregnating container (1) or (18).
  • the shut-off valve (10) is closed.
  • the impregnating agent penetrates into the workpieces under the influence of the vacuum. Depending on the material of the workpieces to be impregnated and the properties of the impregnating agent used, this process can take between 5 minutes and a few hours (e.g. with wood impregnation).
  • the purpose of the invention is to drastically reduce this penetration time. It was found that the impregnation time can be halved by vibration. In the case of viscous impregnating agent, penetration into the workpieces can be promoted by additional exposure to compressed air or inert gas. After the impregnation process has been completed, the impregnation liquid is returned to the storage container via the pipeline (9) and the shut-off valve (10).
  • the aftertreatment depends on the material and impregnating agent that is used.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
EP89119784A 1989-10-25 1989-10-25 Dispositif pour imprégner des objets en matière poreuse Ceased EP0424561A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP89119784A EP0424561A1 (fr) 1989-10-25 1989-10-25 Dispositif pour imprégner des objets en matière poreuse
JP28694490A JPH03216302A (ja) 1989-10-25 1990-10-23 多孔材からなる部材への液体含浸方法及びその含浸装置
US07/840,663 US5288521A (en) 1989-10-25 1992-02-20 Process and apparatus for the impregnation of workpieces of porous material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89119784A EP0424561A1 (fr) 1989-10-25 1989-10-25 Dispositif pour imprégner des objets en matière poreuse

Publications (1)

Publication Number Publication Date
EP0424561A1 true EP0424561A1 (fr) 1991-05-02

Family

ID=8202058

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89119784A Ceased EP0424561A1 (fr) 1989-10-25 1989-10-25 Dispositif pour imprégner des objets en matière poreuse

Country Status (2)

Country Link
EP (1) EP0424561A1 (fr)
JP (1) JPH03216302A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0609087A1 (fr) * 1993-01-29 1994-08-03 Able Corporation Autoclave
CN108906479A (zh) * 2018-08-06 2018-11-30 张家港市双成电工设备有限公司 真空浸渍罐及真空浸渍机
CN114523535A (zh) * 2022-03-18 2022-05-24 宿州典跃新型建筑材料有限公司 水磨石用木块骨料加工工艺及加工装置
CN116814930A (zh) * 2023-06-29 2023-09-29 重庆理工大学 一种含铜碳滑板及其制造方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013022957A (ja) * 2011-07-25 2013-02-04 Shigeo Eguchi 薬液含浸装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB807746A (en) * 1955-12-22 1959-01-21 Gen Electric Improvements relating to impregnation processes
US3410532A (en) * 1965-10-24 1968-11-12 Albert G. Bodine Liquid treatment apparatus with sonic wave action
US3467546A (en) * 1966-06-23 1969-09-16 Robert Z Page Method of impregnating wood
DE2817267A1 (de) * 1978-04-20 1979-10-25 Kabel Metallwerke Ghh Verfahren zur herstellung laengswasserdichter fernmeldekabel
EP0221028A1 (fr) * 1985-10-24 1987-05-06 ECOLSIR S.r.l. Procédé pour désinfecter des dispositifs et autres matériaux contaminés par le PCB ou d'autres substances toxiques et nuisibles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB807746A (en) * 1955-12-22 1959-01-21 Gen Electric Improvements relating to impregnation processes
US3410532A (en) * 1965-10-24 1968-11-12 Albert G. Bodine Liquid treatment apparatus with sonic wave action
US3467546A (en) * 1966-06-23 1969-09-16 Robert Z Page Method of impregnating wood
DE2817267A1 (de) * 1978-04-20 1979-10-25 Kabel Metallwerke Ghh Verfahren zur herstellung laengswasserdichter fernmeldekabel
EP0221028A1 (fr) * 1985-10-24 1987-05-06 ECOLSIR S.r.l. Procédé pour désinfecter des dispositifs et autres matériaux contaminés par le PCB ou d'autres substances toxiques et nuisibles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0609087A1 (fr) * 1993-01-29 1994-08-03 Able Corporation Autoclave
US5626824A (en) * 1993-01-29 1997-05-06 Able Corporation Autoclave
CN108906479A (zh) * 2018-08-06 2018-11-30 张家港市双成电工设备有限公司 真空浸渍罐及真空浸渍机
CN114523535A (zh) * 2022-03-18 2022-05-24 宿州典跃新型建筑材料有限公司 水磨石用木块骨料加工工艺及加工装置
CN116814930A (zh) * 2023-06-29 2023-09-29 重庆理工大学 一种含铜碳滑板及其制造方法

Also Published As

Publication number Publication date
JPH03216302A (ja) 1991-09-24

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