CH285235A - Process for removing organic coatings from surfaces. - Google Patents

Process for removing organic coatings from surfaces.

Info

Publication number
CH285235A
CH285235A CH285235DA CH285235A CH 285235 A CH285235 A CH 285235A CH 285235D A CH285235D A CH 285235DA CH 285235 A CH285235 A CH 285235A
Authority
CH
Switzerland
Prior art keywords
coating
organic coatings
removing organic
lining
soft
Prior art date
Application number
Other languages
German (de)
Inventor
Kunststoffwerk M S Gmbh
Original Assignee
Kunststoffwerk M & S 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 Kunststoffwerk M & S Gmbh filed Critical Kunststoffwerk M & S Gmbh
Publication of CH285235A publication Critical patent/CH285235A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44DPAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
    • B44D3/00Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
    • B44D3/16Implements or apparatus for removing dry paint from surfaces, e.g. by scraping, by burning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0064Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
    • B08B7/0092Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by cooling

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)

Description

  

  <B>Verfahren zum Entfernen von organischen Überzügen von</B>     Oberflächen.       Metallische Gefässe, wie Tanks usw., bedür  fen für viele Verwendungszwecke einer Aus  kleidung, wenn sie nicht aus einer korrosions  beständigen Metallegierung hergestellt werden  können. Für die Auskleidung kommen insbe  sondere Gummi, bituminöse Massen, wie die  Markenprodukte  Mammut ,      Gasehell ,    sowie  andere Stoffe in Betracht. Diese     Auskleidun-          gen        müssen    erfahrungsgemäss von Zeit zu     Zeit     erneuert werden.

   Dabei macht die Entfernung  der alten Auskleidung bedeutende     Seliwieriu#-          keiten,    insbesondere dann, wenn es sieh uni  Auskleidungen mit Stoffen auf bituminöser  Basis handelt. Die restlose Entfernung der       Auskleidungsmasse    von der Oberfläche ist  aber eine     Grundvoraussetzung    für die     iiacii-          folgende    neue Auskleidung.  



  Besonders schwierig ist. die Entfernung,  wenn die     Auskleidunbsniassen    weich sind, da  die     üblielie    Behandlung der Eisenoberfläche  durch     Sandstrahlen    zu keinem Erfolg führt,  weil sich der     Strahisand    in der weichen Aus  kleidung verfängt.  



  Man hat schon     versucht,    die     Auskleidung     durch Erwärmen der Oberflächen der Gefässe  oder Tanks zähflüssig zu machen, erreicht  mit dieser     Massnahme    jedoch meist das Gegen  teil, da sich nämlich die weiche, fettige     1Tas,#e     in den Poren des Eisens festsetzt und endgül  tig nicht mehr völlig zu     beseitigen    ist.    Das Verfahren gemäss     vorliegender    Erfin  dung ist, dadurch gekennzeichnet, dass man die  mit einem zu entfernenden Überzug     versehe-          nen    Flächen zusammen mit dem Überzug ab  kühlt und dann den Überzug entfernt.  



       i'berrasclienderweise    wurde nämlich ge  funden, dass eine restlose Entfernung, insbe  sondere auch weicher bituminöser     Auskleidun-          gen,    dann möglich ist., wenn die Gefässe oder  Tanks und der Überzug stark abgekühlt wer  den, da durch eine solche<B>Abkühlung</B> die Mas  sen     vierspröden    und auch infolge der     verschie-          dencn    Ausdehnungskoeffizienten von Ober  fläche und Überzug sich durch Sandstrahlen  oder     durch    gewöhnliches Aufschlagen mit dem       Hammei-    rückstandslos entfernen lassen.  



  Die Abkühlung kann auf verschiedene  Weise erfolgen, z. B. durch Verwendung von       Kohlensäureeis,    Aufblasen von Kaltluft oder  dergleichen.



  <B> Process for removing organic coatings </B> from surfaces. Metallic vessels, such as tanks, etc., require clothing for many uses if they cannot be made from a corrosion-resistant metal alloy. For the lining, rubber, bituminous compounds such as the branded products Mammut, Gasehell and other substances come into consideration. Experience has shown that these linings have to be renewed from time to time.

   The removal of the old lining makes important selections, especially when it comes to uni linings with substances on a bituminous basis. However, the complete removal of the lining compound from the surface is a basic requirement for the subsequent new lining.



  Is particularly difficult. the removal, if the lining unbsniassen are soft, since the usual treatment of the iron surface by sandblasting is unsuccessful because the blasting sand gets caught in the soft lining.



  Attempts have already been made to make the lining viscous by heating the surfaces of the vessels or tanks, but this measure usually achieves the opposite, as the soft, greasy pocket sticks in the pores of the iron and does not ultimately more is to be eliminated entirely. The method according to the present invention is characterized in that the surfaces provided with a coating to be removed are cooled together with the coating and then the coating is removed.



       In fact, it was surprisingly found that complete removal, in particular also of soft bituminous linings, is possible when the vessels or tanks and the coating are cooled down considerably, since such a <B> cooling </ B> the masses are four-brittle and, as a result of the different expansion coefficients of the surface and coating, can be removed without residue by sandblasting or by ordinary hammers.



  The cooling can be done in various ways, e.g. B. by using carbon dioxide ice, blowing cold air or the like.

 

Claims (1)

PATENTANSPRUCH Verfahren zum Entfernen. organischer Überzüge, insbesondere solcher bituminöser Art, von Oberflächen, dadurch gekennzeiel- net, dass iiian die mit einem zu entfernenden Überzug versehenen Flächen zusammen mit dem Überzug abkühlt und dann den Überzug entfernt. Claim Removal Process. organic coatings, in particular of the bituminous type, of surfaces, characterized in that the surfaces provided with a coating to be removed cools down together with the coating and then removes the coating.
CH285235D 1950-10-19 1950-10-19 Process for removing organic coatings from surfaces. CH285235A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH285235T 1950-10-19

Publications (1)

Publication Number Publication Date
CH285235A true CH285235A (en) 1952-08-31

Family

ID=4484871

Family Applications (1)

Application Number Title Priority Date Filing Date
CH285235D CH285235A (en) 1950-10-19 1950-10-19 Process for removing organic coatings from surfaces.

Country Status (1)

Country Link
CH (1) CH285235A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0529363A1 (en) * 1991-08-29 1993-03-03 Buse Gase GmbH &amp; Co. Method for removing an adhered coating

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0529363A1 (en) * 1991-08-29 1993-03-03 Buse Gase GmbH &amp; Co. Method for removing an adhered coating

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