EP2675971A1 - Accessoire constitué d'une serrure ou similaire - Google Patents

Accessoire constitué d'une serrure ou similaire

Info

Publication number
EP2675971A1
EP2675971A1 EP12711232.4A EP12711232A EP2675971A1 EP 2675971 A1 EP2675971 A1 EP 2675971A1 EP 12711232 A EP12711232 A EP 12711232A EP 2675971 A1 EP2675971 A1 EP 2675971A1
Authority
EP
European Patent Office
Prior art keywords
accessory
percentage
alloy
copper
zinc
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.)
Granted
Application number
EP12711232.4A
Other languages
German (de)
English (en)
Other versions
EP2675971B1 (fr
Inventor
Michele Tosti
Annalisa POLA
Roberto Roberti
Lorenzo MONTESANO
Pascal Leclercq
Pier Luigi MARTINELLI
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.)
Entech SRL
Original Assignee
Entech SRL
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 Entech SRL filed Critical Entech SRL
Priority to RS20170471A priority Critical patent/RS55925B1/sr
Priority to SI201230952A priority patent/SI2675971T1/sl
Priority to PL12711232T priority patent/PL2675971T3/pl
Publication of EP2675971A1 publication Critical patent/EP2675971A1/fr
Application granted granted Critical
Publication of EP2675971B1 publication Critical patent/EP2675971B1/fr
Priority to HRP20170705TT priority patent/HRP20170705T1/hr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B1/00—Knobs or handles for wings; Knobs, handles, or press buttons for locks or latches on wings
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C18/00—Alloys based on zinc
    • C22C18/04—Alloys based on zinc with aluminium as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C23C28/341—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one carbide layer
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C23C28/343—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one DLC or an amorphous carbon based layer, the layer being doped or not
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/16—Use of special materials for parts of locks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/0004—Lock assembling or manufacturing
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/48—After-treatment of electroplated surfaces

Definitions

  • the present invention relates to an accessory or fitting consisting of a lock or the like, i.e. handles or lock mechanisms or still others, as pointed out in the preamble of the first claim.
  • the invention relates to a lock intended in the most general meaning of the word, i.e. comprising: actuating mechanisms, handles, panic bars, padlocks, handgrips, handles and knobs for doors and windows, door closers, matching/abutment parts, built-in handles, handles and locks for wardrobes, cabinets and others.
  • the invention also relates to similar accessories adapted to be disposed in the vicinity of a door or window for example, and allowing or inhibiting access to an environment/room or wardrobe/cabinet. Therefore the accessory can also consist of plates and safety plates, wings and shutters for doors and windows, and also of nameplates and bells exposed to manual contact.
  • the materials presently used for manufacturing these accessories are the different types of brass, i.e. zinc-copper alloys to which, depending on the required features, other elements such as manganese, tin, iron, aluminium and lead are added.
  • Zamak ® a material identifying a family of zinc-based alloys having aluminium, copper and magnesium as the main alloy elements.
  • Zamak ® unlike brass, has reduced costs, low melting point and high flowability and, therefore, is particularly suitable for production of accessories by hot chamber die casting, this working enabling very complicated pieces to be obtained with important saving in terms of finish working operations.
  • Zamak ® jets are usually submitted to a coating process and in some cases to painting processes in order to increase the aesthetic quality thereof.
  • the accessories made of Zamak ® have high porosity giving rise to formation of bubbles inside the accessory that, once the accessory has solidified, determine important decay of the physico-mechanical properties of the finished product.
  • Zamak ® Another defect belonging to accessories made of Zamak ® is the impossibility of carrying out welding operations and the poor resistance to oxidation.
  • a further defect of accessories made of Zamak ® resides in that, due to the reticular parameters of the crystal lattice thereof, they are weakly plastically deformable.
  • these accessories can be only made by die casting which leads to formation of inner faults, such as porosity, limiting the accessory integrity.
  • uncoated accessories made of Zamak ® are characterised by surface deterioration giving rise to worsening of the aesthetic features and the mechanical and tribologic features. It is therefore necessary to coat said accessories immediately after being produced, exactly for counteracting surface oxidation or general deterioration.
  • patent US-B3880679 discloses a particular zinc alloy using bismuth for improving the chemical features of the compound.
  • the technical task underlying the present invention is to conceive an accessory consisting of a lock or the like capable of substantially obviating the mentioned drawbacks.
  • Another important aim of the invention is to obtain an accessory having high aesthetic qualities while being of competitive price.
  • a further aim of the invention is to manufacture an accessory consisting of a lock or the like, both by casting and by moulding, that is devoid of inner porosity or other defects that may give rise to breaks or other similar problems.
  • Fig. 1 shows an accessory for access elements to inner places/rooms according to the invention
  • Fig. 2 represents a process for manufacturing an accessory according to the invention.
  • the accessory consisting of a lock or the like according to the invention is generally identified by reference numeral 1.
  • locks generally comprise handles, inner opening and closing mechanisms, padlocks or the like.
  • accessory 1 is intended for providing an object adapted to be disposed close to an access element, such as a door or window, a wardrobe's or cabinet's wing or a drawer, that alternately opens or closes an opening and therefore inhibits or allows access to a space/room, respectively.
  • Accessory 1 can be therefore positioned on the outer wall of a house or a building, the boundary wall of a garden or any other wall or similar means adapted to at least partly define the perimeter of a space such as a house, room or office.
  • Accessory 1 is therefore the handle or inner mechanism for opening and closing doors, windows and wings, for example; or yet it consists of panic bars, knobs, wings and shutters for doors and windows, built-in handles, door stoppers, cylinders, padlocks, lock mechanisms, door closers, matching/abutment parts, and the like.
  • it is an article mainly having a decorative function, such as a name plate, a bell, a letterbox for example, or it consists of letters or numbers such as those identifying the street number, which are exposed to the inclemency of the weather and to frequent manual contacts.
  • Accessory 1 has a shape or body 2 defining the form of said accessory 1 , and a coating 3 covering at least part of the shape or body 2.
  • the shape 2 is made of a zinc alloy comprising aluminium in a percentage included between 13% and 35%, magnesium in a percentage lower that 0.1 % and preferably copper in a percentage lower than 5%.
  • the zinc alloy has a copper percentage included between 0.2% and 3.5%, an aluminium percentage included between 13% and 25% and a zinc percentage substantially included between 70% and 87%.
  • the zinc percentage in this alloy is included between 75% and 85%.
  • two preferred compositions have the following percent amounts. First composition: aluminium 15%+1 %, magnesium 0.04%+0,02%, copper 1 %+0.5%, zinc for the balance. Second composition: aluminium 22%+1 %, magnesium 0.04%+0.02%, copper 2%+ 0.5%, zinc for the balance.
  • impurities can be also present, i.e. other substances different from those listed above and present in percentages lower than 0.05%.
  • impurities it is possible to have: iron with a maximum concentration of 0.02% because it makes the alloy more brittle; cadmium present in a percentage not beyond 0.0015% because it makes the mechanical properties worse and induces intercrystal corrosion; and tin, present in the alloy in a maximum concentration of 0.002% because it makes the mechanical properties worse and induces intercrystal corrosion; lead, bismuth and nickel, each with a content lower than 0.004% and preferably of 0.001 %.
  • Coating 3 is preferably carried out at least on the portion in sight, if any, of the accessory, i.e. the surface of accessory 1 adapted not to abut against the object with which it is engaged such as a door or a wall. Alternatively, it is carried out on particularly stressed mechanical elements.
  • This coating 3 comprises a base layer 3a obtained through electroplating and a film 3b deposited thereon preferably through a high vacuum process.
  • the film 3b defines the outer surface of accessory 1 , while layer 3a is enclosed between the film 3b and the shape or body 2, as shown in Fig. 2.
  • the base layer 3a deposited by the known electroplating technique comprises copper and/or nickel and/or chromium, while the film 3b is of the metal type and preferably comprises, by way of non-exhaustive example: Ti, TiN, TiCN, Cr, CrN, CrCN, TiO, SiOx, DLC, etc.
  • Thickness of layer 3a is substantially included between 5 ⁇ ⁇ and 40 pm, while thickness of film 3b is substantially included between 0.2 pm and 2 pm.
  • coating 3 comprises a single layer applied through electrophoretic painting, so as to obtain reduced environmental impact.
  • the invention comprises a new process 10 for manufacturing an accessory 1 for access elements to inner places or environments.
  • Process 10 diagrammatically shown in Fig. 2, comprises a forming step 11 in which at least one shape or body 2 of accessory 1 is made and a surface finishing step 12 adapted to create a coating 3 covering at least part of said shape or body 2.
  • the forming step 11 is obtained by plastic deformation and preferably hot plastic deformation, as it takes place in hot moulding, for example.
  • the alloy In hot moulding the alloy, in order to improve malleability thereof, is heated to a temperature usually higher than two thirds of the melting temperature, in this case between 200°C and 400°C and is subsequently introduced between the two half-dies where it is compressed until it takes the die's shape, i.e. the form of shape or body 2 of accessory 1 that is wished to be manufactured.
  • the forming step 11 contemplates manufacture of shape 2 by die-casting.
  • Die-casting also referred to as "casting in an iron mould under pressure" is a particular process in permanent form in which the zinc alloy after being melted, is injected at high pressure or merely under gravity into a metal mould.
  • the melting furnace is part of the machine and the injection device is placed in the crucible or melting pot and therefore is at the same temperature as the molten alloy.
  • the melting pot heated by a furnace, holds the molten alloy that, through a hole, enters the injection chamber and is then compressed into the mould through a suitable injector, at a pressure usually included between 2 and 15 MPa.
  • the zinc alloy is melted in the crucible that is separated from the mould.
  • the molten alloy after being removed from the crucible, is introduced into the injection chamber through a suitable hole and then placed inside the mould cavity at a pressure substantially included between 15 and 150 MPa.
  • the forming step 11 preferably takes place through hot chamber die-casting or, alternatively, hot moulding, as previously described or yet by means of tools acting by chip removal such as CNC (Computerised Numerical Control) machines.
  • CNC Computerised Numerical Control
  • the zinc alloy used in hot chamber die- casting has an aluminium percentage included between 3% and 25%.
  • machining by chip removal or the like such as turning and cutting processes.
  • the forming step can contemplate a final cleaning operation in which burr or other defects resulting from adopting the aforesaid working techniques are eliminated.
  • finishing step 11 When the forming step 11 and the following mechanical finishing operations have been completed, other finishing operations have to be carried out which comprise surface smoothing and subsequent polishing made mechanically by means of brushes, using manual or robotized processes, or by means of mass treatments in vibrators using abrasive chips; then the surface finishing step 12 begins in which coating 3 is made.
  • the surface finishing step 12 preferably comprises a covering sub- step 12a suitable for depositing the base layer 3a or, alternatively, a coating sub-step 12a adapted to form the film 3b. More preferably, the surface finishing step 12 contemplates both the covering sub-step 12a and the coating sub-step 12b that advantageously takes place after said covering sub-step 12a.
  • the covering sub-step 12a is preferably obtained by the electroplating technique that, through electrolytic deposition, enables the shape 2 to be covered with layer 3a consisting of copper and/or nickel plus chromium.
  • the subsequent coating sub-step 12b forms the film 3b by high vacuum deposition and preferably by a PVD or PECVD process.
  • high vacuum deposition is used to identify those coating processes carried out in vacuum chambers, i.e. in environments with very low inner pressure, and more specifically in high vacuum chambers with an inner pressure substantially included between 10 "1 Pa and 10 "5 Pa.
  • high vacuum processes there are those referred to as PVD or PECVD.
  • PVD or PECVD which are the acronyms of "Physical Vapor Deposition” and “Plasma Enhanced Chemical Vapor Deposition” respectively
  • processes are atomic deposition processes in which the material to be deposited is evaporated from the solid phase and transferred, in the vapour phase, to the pieces to be covered where it deposits to form a thin film.
  • a coating is deposited that will directly constitute the outer layer of accessory 1.
  • the invention achieves important advantages.
  • accessory 1 is characterised by the raw production materials having a lower cost than that of known accessories.
  • the aluminium content is in any case limited to no more than 25% and preferably 23%, so as to ensure good hot deformability and a melting temperature that is not too high.
  • the copper content does not exceed 5% so as to obtain ideal chips in working processes by chip removal.
  • a further advantage of accessory 1 is the greater handiness and ease of use ensured by the reduced weight that, as compared with accessories made of brass and of Zamak ® is respectively about 20% and 15% lower.
  • accessory 1 unlike those hitherto used, is characterised by a high aesthetic quality
  • accessory 1 has high features of resistance to oxidation also when it is not coated. Therefore it is possible to store high amounts of uncoated accessories 1 and carry out coating 3 not immediately after manufacture of shape 2 but only at the moment of sale or use, so as to optimise the logistics connected with storage.
  • Another important advantage connected with use of the innovative zinc alloy is represented by the possibility of carrying out welding or other similar working operations that are not allowed in presently used alloys, such as Zamak ® , for example.
  • a further advantage resides in that the zinc alloy is characterised by lead, bismuth and cadmium contents much smaller than those of Zamak ® or other zinc alloys.
  • this advantage results in simpler disposal and consequently less environmental impact of accessory 1 made with use of the innovative alloy, as compared with accessories made of Zamak ® or other zinc alloys.
  • lead or bismuth are necessary for carrying out the working operations, in the present alloy lead and bismuth can be fully eliminated, according to the technological limits of the state of the art.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Adornments (AREA)

Abstract

L'invention concerne un accessoire constitué d'une serrure ou similaire (1) soumis à un contact manuel ; ledit accessoire (1) comportant un corps ou une forme (2) définissant la forme dudit accessoire (1) et réalisé en un alliage de zinc comportant de l'aluminium selon un pourcentage inclus entre 13 % et 25 %, du cuivre selon un pourcentage inférieur à 5 % et du magnésium selon un pourcentage inférieur à 0,1% et ne comprenant ni bismuth ni plomb ou maintenant chacun de ceux-ci selon un pourcentage inférieur à 0,004 %.
EP12711232.4A 2011-02-15 2012-02-13 Accessoire constitué d'un accessoire de serrure Not-in-force EP2675971B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
RS20170471A RS55925B1 (sr) 2011-02-15 2012-02-13 Pribor koji se sastoji od pribora za zaključavanje
SI201230952A SI2675971T1 (sl) 2011-02-15 2012-02-13 Pripomoček, ki vsebuje pripomoček za zaklepanje
PL12711232T PL2675971T3 (pl) 2011-02-15 2012-02-13 Akcesorium składające się z akcesorium zamkowego
HRP20170705TT HRP20170705T1 (hr) 2011-02-15 2017-05-11 Dodatak koji sadrži dodatnu opremu za zaključavanje

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT000218A ITMI20110218A1 (it) 2011-02-15 2011-02-15 Accessorio costituito da serratura o simile
IT000824A ITMI20110824A1 (it) 2011-02-15 2011-05-12 Accessorio costituito da serratura o simile
PCT/IB2012/050638 WO2012110936A1 (fr) 2011-02-15 2012-02-13 Accessoire constitué d'une serrure ou similaire

Publications (2)

Publication Number Publication Date
EP2675971A1 true EP2675971A1 (fr) 2013-12-25
EP2675971B1 EP2675971B1 (fr) 2017-03-22

Family

ID=43976123

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12711232.4A Not-in-force EP2675971B1 (fr) 2011-02-15 2012-02-13 Accessoire constitué d'un accessoire de serrure

Country Status (11)

Country Link
EP (1) EP2675971B1 (fr)
DK (1) DK2675971T3 (fr)
ES (1) ES2626419T3 (fr)
HR (1) HRP20170705T1 (fr)
HU (1) HUE032960T2 (fr)
IT (4) ITMI20110218A1 (fr)
PL (1) PL2675971T3 (fr)
PT (1) PT2675971T (fr)
RS (1) RS55925B1 (fr)
SI (1) SI2675971T1 (fr)
WO (1) WO2012110936A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019007909A1 (fr) 2017-07-04 2019-01-10 Grillo-Werke Ag Alliage de zinc corroyé présentant une aptitude au revêtement améliorée
WO2019007906A1 (fr) 2017-07-04 2019-01-10 Grillo-Werke Ag Alliage corroyé de zinc contenant du titane
US11225533B2 (en) 2017-12-18 2022-01-18 Arlanxeo Deutschland Gmbh Hydrogenation of nitrile butadiene rubber latex

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CN108277393A (zh) * 2018-02-05 2018-07-13 南通鑫祥锌业有限公司 一种锌带及其制作方法
IT202000007465A1 (it) * 2020-04-08 2021-10-08 Top Finish 2002 Srl Rivestimento composito per la finitura di articoli metallici o di loro analoghi
RU199978U1 (ru) * 2020-06-14 2020-09-30 Владимир Васильевич Галайко Ручка дверная с антибактериальным покрытием

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019007909A1 (fr) 2017-07-04 2019-01-10 Grillo-Werke Ag Alliage de zinc corroyé présentant une aptitude au revêtement améliorée
WO2019007906A1 (fr) 2017-07-04 2019-01-10 Grillo-Werke Ag Alliage corroyé de zinc contenant du titane
US11225533B2 (en) 2017-12-18 2022-01-18 Arlanxeo Deutschland Gmbh Hydrogenation of nitrile butadiene rubber latex

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DK2675971T3 (en) 2017-05-15
ITMI20110218A1 (it) 2012-08-16
ITMI20110826A1 (it) 2012-08-16
RS55925B1 (sr) 2017-09-29
ITMI20110825A1 (it) 2012-08-16
HUE032960T2 (en) 2017-11-28
PT2675971T (pt) 2017-06-05
ES2626419T3 (es) 2017-07-25
WO2012110936A1 (fr) 2012-08-23
EP2675971B1 (fr) 2017-03-22
SI2675971T1 (sl) 2017-06-30
HRP20170705T1 (hr) 2017-07-14
ITMI20110824A1 (it) 2012-08-16
PL2675971T3 (pl) 2017-08-31

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