DE4406169C1 - Method for cleaning moulds made of metal - Google Patents
Method for cleaning moulds made of metalInfo
- Publication number
- DE4406169C1 DE4406169C1 DE4406169A DE4406169A DE4406169C1 DE 4406169 C1 DE4406169 C1 DE 4406169C1 DE 4406169 A DE4406169 A DE 4406169A DE 4406169 A DE4406169 A DE 4406169A DE 4406169 C1 DE4406169 C1 DE 4406169C1
- Authority
- DE
- Germany
- Prior art keywords
- concrete
- metal
- cleaning
- metal molds
- heated
- 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.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/022—Cleaning travelling work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/386—Cleaning
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Reinigen von Formen aus Metall, die bei der Herstellung von Betonformteilen verwendet werden. Solche Formen verschmutzen und verkrusten durch anhaftende Beton reste besonders in den Ecken, an Rändern und an profilierten Stellen bei mehrmaligem Gebrauch sehr stark, was zu Qualitätsmängeln der darin geformten Betonteile bis hin zu Ausschuß und zu Behinderungen im technologischen Prozeß bei der industriellen Produktion von Betonformteilen führen kann.The invention relates to a method for cleaning of metal molds used in the manufacture of Concrete parts are used. Such forms dirty and crusted by adhering concrete remains particularly in the corners, on the edges and on profiled areas with repeated use very strong, leading to quality defects in the molded therein Concrete parts up to rejects and disabilities in the technological process in the industrial Production of molded concrete parts can lead.
Es ist bekannt, solche Metallformen nach mehrmali gem Gebrauch mittels geeigneter Reinigungswerkzeuge manuell zu reinigen. Dies ist jedoch bei einer industriellen Massenherstellung von Betonformteilen äußerst unrationell. Auch die Anwendung chemischer Verfahren hat sich wegen der relativ hohen chemi schen Beständigkeit von Beton und des andersartigen Verhaltens von Metall als nicht effektiv erwiesen. Ebenso hat sich die Verwendung von Strahlkies zum Reinigen von Formen aus Metall für Betonformteile wegen des hohen Verschleißes der Formen nicht bewährt. Auch elektro-technologische Verfahren sind für diesen speziellen Anwendungsfall wegen mangeln der Effektivität nicht geeignet.It is known to repeat such metal forms after several times according to the use of suitable cleaning tools to clean manually. However, this is one industrial mass production of concrete parts extremely inefficient. Even the application of chemical The procedure has been due to the relatively high chemi resistance of concrete and the like Behavior of metal proved to be ineffective. Likewise, the use of blasted gravel has become Cleaning metal molds for molded concrete parts because of the high wear of the molds proven. There are also electro-technological processes for this special application because of lack not suitable for effectiveness.
Bekannt ist auch ein Verfahren zur Ablösung nicht metallicher Schichten von einem metallichen Körper durch Erwärmen und anschließendes Abkühlen in flüssigem Stickstoff. (US-PS 47 05574) Nachteilig ist dabei die aufwendige Beschaffung, Bevorratung und Handhabung des flüssigen Stickstoffs. Ferner ist ein Verfahren zum Ablösen von Beschichtungen aus Elastomeren, Thermoplasten und Kunstharzen mittels induktiver Beheizung bekannt, wonach diese Beschichtungen von der metallichen Unterlage 2 abgeschmolzen werden. Es ist zum Ablösen von anorganischen Stoffen wie Beton nicht geeignet.A method for detaching non-metallic layers from a metallic body by heating and then cooling in liquid nitrogen is also known. (US-PS 47 05574) The disadvantage is the complex procurement, storage and handling of the liquid nitrogen. Furthermore, a method for detaching coatings from elastomers, thermoplastics and synthetic resins by means of inductive heating is known, according to which these coatings are melted from the metallic base 2 . It is not suitable for removing inorganic substances such as concrete.
Problem der Erfindung ist es, ein Verfahren zu schaffen, welches eine rationelle Reinigung von Metallformen für die Herstellung von Betonformtei len erlaubt, ohne die Form zu verschleißen oder zu beschädigen.The problem of the invention is a method create, which a rational cleaning of Metal molds for the production of molded concrete parts len allowed without wearing out the shape or to damage.
Erfindungsgemäß wird das Problem dadurch gelöst, daß die vom Beton verschmutzten Metallformen auf etwa 60°C bis 300°C erwärmt werden und sodann mit einem bewegten, eine niedrigere Tempera tur als die erwärmten Metallformen aufweisenden Druckflüssigkeitsstrahl, vorzugsweise Druckwas serstrahl mit einem Druck von 200 bis 1200 bar, die anhaftenden Betonreste abgelöst und abgespült werden.According to the invention, the problem is solved by that the metal molds soiled by the concrete about 60 ° C to 300 ° C and then with an agitated, a lower tempera than the heated metal molds Pressurized fluid jet, preferably pressurized water water jet with a pressure of 200 to 1200 bar, the adhering concrete residues detached and rinsed off become.
Das erfindungsgemäße Verfahren erlaubt eine ratio nelle Reinigung von Metallformen für Betonteile. Die Vorrichtung dafür kann stationär in einer Produktionsstätte betrieben werden oder auf ein Fahrzeug oder einem Fahrgestell mobil sein. Mit einer mobilen Anlage ist es möglich, in periodi schen Zeitabständen oder nach Bedarf die Reini gung solcher Metallformen als Dienstleistungen für mehrere Unternehmen an verschiedenen Stand orten durchzuführen. The method according to the invention allows a ratio nell cleaning of metal molds for concrete parts. The device for this can be stationary in a Production facility operated or on a Vehicle or chassis be mobile. With a mobile system, it is possible to periodically intervals or if necessary, the Reini such metal molds as services for several companies at different stands locations.
Nachstehend wird die Erfindung an einem Ausfüh rungsbeispiel näher erläutert.In the following the invention is carried out on an embodiment Example explained in more detail.
Die Zeichnung zeigt die schematische Darstellung einer Anlage zur Durchführung des erfindungsge mäßen Verfahrens.The drawing shows the schematic representation a system for performing the fiction procedure.
Es werden flache Metallformen 1 für die Herstellung von Betondachsteinen auf einem Transportband 5 mit der verschmutzten Seite nach oben aufgelegt, unter die Gasbrenner 2 gefördert und von Flammen aus dem Gasbrenner auf eine Oberflächentemperatur von 200°C erwärmt.Flat metal molds 1 for the production of concrete roof tiles are placed on a conveyor belt 5 with the dirty side facing upwards, conveyed under the gas burner 2 and heated by flames from the gas burner to a surface temperature of 200 ° C.
Unmittelbar danach werden Wasserstrahlen mit einer Temperatur von weniger als 90°C aus einer rotie renden Mehrfachdruckwasserstrahldüse 3 auf die erwärmte Oberfläche der Metallform 1 gerichtet. Infolge des Temperatursturzes durch die Wasser strahlen treten Materialspannungen zwischen dem Metall der Form und dem anhaftenden Beton auf, was zum Lösen bzw. zum Abplatzen vom Metalluntergrund führt. Die mechanische Wirkung der Druckwasser strahlen beschleunigt diesen Vorgang und spült die Betonreste ab, womit die Metallformen 1 für Beton formteile gründlich gereinigt sind und im Produkti onsprozeß wieder verwendet werden können.Immediately thereafter, water jets with a temperature of less than 90 ° C. are directed from a rotating multi-pressure water jet nozzle 3 onto the heated surface of the metal mold 1 . As a result of the drop in temperature through the water jets, material stresses occur between the metal of the mold and the adhering concrete, which leads to detachment or chipping from the metal surface. The mechanical action of the pressurized water jets accelerates this process and rinses off the concrete residues, whereby the metal molds 1 for concrete moldings are thoroughly cleaned and can be used again in the production process.
Die Vorrichtung zur Durchführung des Verfahrens besteht aus dem Transportband 5, den darüber ange ordneten Gasbrenner 2 mit Schutzhaube, der eben falls über dem Förderband unmittelbar neben der Brenneranordnung mit Schutzhaube angeordneten Mehrfachdruckwasserstrahldüse 3 mit Spritzwasser schutzhaube, einem darunter befindlichen Behälter 4 für das Druckwasser sowie eine Druckwasserpumpe 6 mit Rohrleitungen zwischen den Behälter 4 und Mehrfachdruckwasserdüse 3.The device for carrying out the method consists of the conveyor belt 5 , the gas burner 2 arranged above it with a protective hood, which also if arranged above the conveyor belt directly next to the burner arrangement with a protective hood, a multiple pressure water jet nozzle 3 with a splash guard, an underlying container 4 for the pressurized water and a Pressurized water pump 6 with pipes between the tank 4 and multiple pressurized water nozzle 3 .
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4406169A DE4406169C1 (en) | 1994-02-25 | 1994-02-25 | Method for cleaning moulds made of metal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4406169A DE4406169C1 (en) | 1994-02-25 | 1994-02-25 | Method for cleaning moulds made of metal |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4406169C1 true DE4406169C1 (en) | 1995-05-04 |
Family
ID=6511218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4406169A Expired - Fee Related DE4406169C1 (en) | 1994-02-25 | 1994-02-25 | Method for cleaning moulds made of metal |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4406169C1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2882275A1 (en) * | 2005-02-22 | 2006-08-25 | Bip Sas Soc Par Actions Simpli | Concrete mold cleaning machine for e.g. concrete block, has units to displace high pressure fluid projection unit or support unit in plane, where projection unit has nozzle projecting fluid in direction forming non zero angle with plane |
US20130319468A1 (en) * | 2012-06-05 | 2013-12-05 | Denso Corporation | Washing method and apparatus for removing contaminations from article |
EP3357592A1 (en) * | 2017-02-07 | 2018-08-08 | Vollert Anlagenbau GmbH | Cleaning station |
CN109159261A (en) * | 2018-09-14 | 2019-01-08 | 西安银马实业发展有限公司 | A kind of cleaning plant of block machine mold |
CN111014653A (en) * | 2019-12-10 | 2020-04-17 | 安徽哈特三维科技有限公司 | Preprocessing device is used in aluminum alloy powder processing |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2650003A1 (en) * | 1975-11-12 | 1977-05-18 | Stefan Witte | DEVICE FOR SURFACE TREATMENT |
US4705574A (en) * | 1985-02-04 | 1987-11-10 | Mg Industries, Inc. | Debonding process for removing non-metallic coatings from metal hangers |
DE3838214A1 (en) * | 1988-11-11 | 1990-05-17 | Gewerk Keramchemie | Process and apparatus for detaching coatings or the like |
DE9312226U1 (en) * | 1993-08-16 | 1993-10-14 | Guggenberger Johannes | Device for cleaning sheet metal or the like. |
-
1994
- 1994-02-25 DE DE4406169A patent/DE4406169C1/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2650003A1 (en) * | 1975-11-12 | 1977-05-18 | Stefan Witte | DEVICE FOR SURFACE TREATMENT |
US4705574A (en) * | 1985-02-04 | 1987-11-10 | Mg Industries, Inc. | Debonding process for removing non-metallic coatings from metal hangers |
DE3838214A1 (en) * | 1988-11-11 | 1990-05-17 | Gewerk Keramchemie | Process and apparatus for detaching coatings or the like |
DE9312226U1 (en) * | 1993-08-16 | 1993-10-14 | Guggenberger Johannes | Device for cleaning sheet metal or the like. |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2882275A1 (en) * | 2005-02-22 | 2006-08-25 | Bip Sas Soc Par Actions Simpli | Concrete mold cleaning machine for e.g. concrete block, has units to displace high pressure fluid projection unit or support unit in plane, where projection unit has nozzle projecting fluid in direction forming non zero angle with plane |
US20130319468A1 (en) * | 2012-06-05 | 2013-12-05 | Denso Corporation | Washing method and apparatus for removing contaminations from article |
US10391525B2 (en) * | 2012-06-05 | 2019-08-27 | Denso Corporation | Washing method and apparatus for removing contaminations from article |
EP3357592A1 (en) * | 2017-02-07 | 2018-08-08 | Vollert Anlagenbau GmbH | Cleaning station |
CN109159261A (en) * | 2018-09-14 | 2019-01-08 | 西安银马实业发展有限公司 | A kind of cleaning plant of block machine mold |
CN111014653A (en) * | 2019-12-10 | 2020-04-17 | 安徽哈特三维科技有限公司 | Preprocessing device is used in aluminum alloy powder processing |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8322 | Nonbinding interest in granting licences declared | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |