Filters
Results 1 - 10 of 2479
Results 1 - 10 of 2479.
Search took: 0.028 seconds
Sort by: date | relevance |
Laumond, C.; Hours, P.; Aubert, O.
Compagnie Generale d'Automatisme (CGA), 75 - Paris (France)1988
Compagnie Generale d'Automatisme (CGA), 75 - Paris (France)1988
AbstractAbstract
[en] In a closed vessel a cleaning solution is sprayed under pressure heated and recycled after filtration, each cleaning cycle is followed by a rinsing cycle also realized by spraying under pressure. Application is made for cleaning of sealing lining parts from compressors for UF6
[fr]
Les operations de nettoyage sont effectuees en enceinte fermee par pulverisation sous pression du liquide de nettoyage chauffe et mis en circulation en boucle fermee, avec filtrage pour son recyclage; chaque operation de nettoyage est suivie d'une operation de rincage egalement realisee par pulverisation sous pression. Application: nettoyage d'elements de garniture d'etancheite contamines d'installation nucleaireOriginal Title
Procede et installation de nettoyage de pieces souillees
Primary Subject
Source
11 Mar 1988; 5 Sep 1986; 19 p; FR PATENT DOCUMENT 2603504/A/; FR PATENT APPLICATION 8612485; Available from Institut National de la Propriete Industrielle, Paris (France); Application date: 5 Sep 1986
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Mattox, D.M.
Sandia Labs., Albuquerque, N.Mex. (USA)1978
Sandia Labs., Albuquerque, N.Mex. (USA)1978
AbstractAbstract
[en] A ''clean surface'' is one that contains no significant amounts of undesirable material. This paper discusses the types and origin of various contaminants. Since cleaning is often equated with adhesion, the mechanisms of adhesion to oxide, metal, and organic surfaces are reviewed and cleaning processes for these surfaces are outlined. Techniques for monitoring surface cleaning are presented, and the importance of storage of clean surfaces is discussed. An extensive bibliography is given. 4 figs., 89 references
Primary Subject
Source
1978; 33 p; Conference on metallurgical coatings; San Francisco, CA, USA; 3 - 7 Apr 1978; CONF-780430--2; Available from NTIS., PC A03/MF A01
Record Type
Report
Literature Type
Conference
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Koenig, Bernard; Cluchet, Jean; Courtault, Jeanine.
CEA, 75 - Paris (France)1977
CEA, 75 - Paris (France)1977
AbstractAbstract
[en] Process for the radioactive decontamination of a piece whereby a decontaminating gel is applied to the surface of this piece, this gel being then removed. This process provides a satisfactory decontamination of the surface of the piece without bringing about a deep change in the state of this surface and without leading to large quantities of radioactive effluents
[fr]
Procede de decontamination radioactive d'une piece, caracterise en ce qu'on applique sur la surface de ladite piece un gel decontaminant et en ce qu'on elimine ensuite ledit gel. Ce procede permet d'assurer une decontamination satisfaisante de la surface de la piece sans entrainer une modification profonde de l'etat de cette surface, et sans conduire pour autant a des volumes importants d'effluents radioactifsOriginal Title
Procede de decontamination radioactive d'une piece
Primary Subject
Source
9 Feb 1977; 11 p; FR PATENT DOCUMENT 2380624/A/; Available from Institut National de la Propriete Industrielle, Paris (France)
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Brossard, P.; Turpain, J.P.; Vienne, P.
CEA, 75 - Paris (France)1989
CEA, 75 - Paris (France)1989
AbstractAbstract
[en] A windshield wiper with a transverse movement for cleaning all the surface of a shielding window isd claimed for a hot cell in nuclear industry. Mechanical specifications are given
[fr]
On revendique un balai d'essuie glace a mouvement transversal permettant de nettoyer la totalite de la surface d'un hublot rectangulaire d'une cellule chaude dans l'industrie nucleaire. On donne le detail du mecanismeOriginal Title
Dispositif de nettoyage d'un hublot rectangulaire
Primary Subject
Source
17 Feb 1989; 11 Aug 1987; 9 p; FR PATENT DOCUMENT 2619325/A/; FR PATENT APPLICATION 8711418; Available from Institut National de la Propriete Industrielle, Paris (FR); Application date: 11 Aug 1987
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] After testing of the fluid behavior of paste type cleansers, a system for application of these pastes in thin layers has been constructed. All materials used had been selected according to their compatibility against the chemical agents of the pastes. For application of molten salts to metal surfaces an induction heating system has been selected as heat source for heating the components to be decontaminated. A transportation system for the salt powders is tested. All components for practical demonstration of the decontamination methods with paste type cleansers and molten salt are ordered. (orig./RW)
[de]
Nach einer Untersuchung des Fliessverhaltens von Reinigungspasten wurde ein System zum Auftragen dieser Pasten in duennen Schichten entwickelt. Alle verwendeten Materialien wurden auf ihre Vertraeglichkeit mit den chemischen Wirkstoffen der Pasten geprueft. Fuer das Auftragen von Salzschmelzen auf Metallschmelzen wurde ein Induktions-Heizsystem als Waermequelle fuer die Erhitzung der zu dekontaminierenden Komponenten entwickelt. Ein Transportsystem fuer die Salzpulver befindet sich noch im Teststadium. Alle Komponenten fuer die praktische Demonstration von Dekontaminationsverfahren mit Reinigungspasen sind in Auftrag gegeben. (orig./RW)Original Title
Optimierung eines fluessigen Reinigers fuer Dekontaminationszwecke
Primary Subject
Source
Kernforschungszentrum Karlsruhe (Germany, F.R.). Projekt Nukleare Sicherheit; p. 478-483; Apr 1977; p. 478-483; 2 figs.
Record Type
Report
Literature Type
Progress Report
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The Non Destructive Cleaning (NDC) process is truly a ''dry process'' that generates no secondary waste streams. Since no solid grit or aggregate is used, there is no need for bulk radioactive solid waste handling equipment. Moreover, since no chemicals are used, the mobile decontamination facility requires no radioactive chemical processing or mixed waste handling facilities. Instead the NDC process uses solid carbon dioxide particles propelled by dry compressed air as the cleaning medium. The carbon dioxide particles shatter upon impact with the surface of the material to be cleaned and flash into dry carbon dioxide gas. This flashing into gas results in a rapid volume expansion of about ten to one. The cleaning action is due to the rapidly expanding carbon dioxide gas flashing into the surface of the item to be cleaned (which is porous at the microscopic level) and flushing foreign materials out. The microscopic particles of foreign material are captured on high efficiency particulate filters. Larger sized fragments are lifted off the surface by the flashing carbon dioxide gas, fall to the bottom of the cleaning area and are vacuumed away to dry air filters. The NDC process also has the advantage that it does not attack the surface of the material being cleaned, making it unique among cleaning processes. (author)
Primary Subject
Record Type
Journal Article
Journal
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Gibot, C.; Charles, J.M.
Carboxyque Francaise1986
Carboxyque Francaise1986
AbstractAbstract
[en] The apparatus includes 3 parts: a crusher feeded with dry ice blocks, a doser and an ejector placed in vector gas duct. A hood maintains the whole equipment in a CO2 atmosphere. Application is made to decontamination of radioactive surfaces less radioactive effluents are produced
[fr]
L'installation comprend trois ensembles separes les uns des autres: un broyeur alimente en morceaux de glace carbonique, un dispositif doseur a vis-ressort d'extraction, et un dispositif propulseur monte dans une conduite de gaz vecteur. L'ensemble est maintenu en atmosphere de CO2 par un capot. Application au decapage de surfaces dans l'industrie nucleaireOriginal Title
Installation pour la projection de particules de glace carbonique; surface decontamination
Primary Subject
Source
8 Aug 1986; 4 Feb 1985; 8 p; FR PATENT DOCUMENT 2576821/A/; FR PATENT APPLICATION 85 01487; Available from Institut National de la Propriete Industrielle, Paris (France); Application date: 4 Feb 1985
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
McDonald, B.N.
Babcock and Wilcox Co., New York (USA)1978
Babcock and Wilcox Co., New York (USA)1978
AbstractAbstract
[en] This invention concerns a steam generator comprising a containment and U tubes, in which the heat is provided by a heating fluid flowing inside the tubes. It specifically concerns improved systems aiming at removing the sediment or deposits and to evacuate them. The use of steam generators of the containment and U tube type is routine practice, particularly so in the generation of steam for nuclear power-generation units
[fr]
La presente invention concerne un appareil de generation de vapeur a enceinte et tubes en U dans lequel de la chaleur est fournie par un fluide chauffant qui circule a l'interieur des tubes, et elle se rapporte plus particulierement a des dispositions perfectionnees visant a enlever les sediments ou depots et a les evacuer. L'emploi d'appareils de generation de vapeur du type a enceinte et tubes en U est couramment pratique, plus particulierement dans la generation de vapeur pour groupes de force motrice nucleaireOriginal Title
Evacuation de sediments deposes sur la plaque tubulaire d'un generateur de vapeur a faisceau de tubes en U
Primary Subject
Source
28 Apr 1978; 7 p; FR PATENT DOCUMENT 2389830/A/; Available from Institut National de la Propriete Industrielle, Paris (France); Priority claim: 4 May 1977, US.
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The standard refers to the layout and construction of areas of clean conditions in the production workshops and on sites in order to maintain the surface cleanliness of components and systems. (orig.)
[de]
Die Norm enthaelt Festlegungen zur Ausfuehrung und Bereitstellung von Sauberkeitsbereichen in den Fertigungswerkstaetten und den Baustellen zur Erhaltung der Oberflaechensauberkeit von Bauteilen, Komponenten und Systemen. (orig.)Original Title
Kerntechnische Anlagen. Oberflaechensauberkeit von Bauteilen
Primary Subject
Source
Dec 1980; 4 p; Beuth; Berlin, Germany, F.R; DIN--25410(T.5)
Record Type
Book
Literature Type
Standard
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Sellers, J.A.; Kottke, M.; Wilson, S.R.; Mattox, R.J.
Tungsten and other advanced metals for VLSI/ULSI applications 51990
Tungsten and other advanced metals for VLSI/ULSI applications 51990
AbstractAbstract
[en] This paper reports the causes of selectivity loss during tungsten (W) plug deposition investigated. It was determined that the major cause of selectivity loss was the presence of a sidewall contaminant formed during via etching. Photoresist removal procedures such as oxygen plasma ashing, or an organic stripping solution, did not fully remove this contaminant which supported W growth. Sidewall contaminants that remained on the surface after photoresist stripping resulted in the occurrence of via sidewall creep and W stringers. To completely remove sidewall contaminants after plasma ashing, it was necessary to use additional wet chemical cleaning procedures. This eliminated problems with sidewall creep and W stringers. However, it was also found that wet cleaning procedures could be the cause of other forms of selectivity loss such as W clusters and localized blankets of W metal, when not carefully implemented. The use of wet chemical cleaning procedures in combination with photoresist removal techniques was found to significantly reduce problems with selectivity loss, resulting in improved metallization yields
Primary Subject
Source
Wong, S.S. (Stanford Univ., Stanford, CA (USA)); Furukawa, S. (Tokyo Inst. of Technology, Tokyo (Japan)); 427 p; ISBN 1-55899-086-2;
; 1990; p. 227-232; Materials Research Society; Pittsburgh, PA (USA); 5. tungsten and other advanced metals for VLSI/ULSI applications workshop; San Mateo, CA (USA); 20-21 Sep 1989; CONF-8909348--; Materials Research Society, 9800 McKnight Rd., Suite 327, Pittsburgh, PA 15237 (USA)

Record Type
Book
Literature Type
Conference
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
1 | 2 | 3 | Next |