EP3041963B1 - Method for hardening sheet metal material and hardened metal sheet material - Google Patents

Method for hardening sheet metal material and hardened metal sheet material Download PDF

Info

Publication number
EP3041963B1
EP3041963B1 EP14755656.7A EP14755656A EP3041963B1 EP 3041963 B1 EP3041963 B1 EP 3041963B1 EP 14755656 A EP14755656 A EP 14755656A EP 3041963 B1 EP3041963 B1 EP 3041963B1
Authority
EP
European Patent Office
Prior art keywords
sheet metal
metal material
approximately
blasting
solidification
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.)
Active
Application number
EP14755656.7A
Other languages
German (de)
French (fr)
Other versions
EP3041963A1 (en
Inventor
Markus SCHIEBOL
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.)
Blanco GmbH and Co KG
Original Assignee
Blanco GmbH and Co KG
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 Blanco GmbH and Co KG filed Critical Blanco GmbH and Co KG
Publication of EP3041963A1 publication Critical patent/EP3041963A1/en
Application granted granted Critical
Publication of EP3041963B1 publication Critical patent/EP3041963B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
    • C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/10—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/08—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces
    • B24C3/10—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces for treating external surfaces
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/47—Burnishing
    • Y10T29/479—Burnishing by shot peening or blasting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12993—Surface feature [e.g., rough, mirror]

Definitions

  • the present invention relates to a use of a sheet metal material which has been surface-hardened by radiation solidification.
  • Sheet metal material in particular stainless steel sheet material, is used in particular for the production of kitchen countertops, sinks or basins.
  • the DE 199 52 514 C1 discloses the use of a sheet metal material for the production of a sink or a basin, the sheet metal material comprising a visible side which is surface-hardened by solidification radiation and the sheet metal material is a stainless steel sheet material.
  • the JP 2003 211360 A discloses a method for treating a sheet metal material, in which a front side of the sheet metal material and a rear side of the sheet metal material are each exposed to at least one solidifying jet.
  • the JP 01 312 029 A discloses a method for treating a sheet metal material, in which a front side and a rear side of a sheet metal material are each exposed to a hardening jet in areas in order to convert an austenite structure into a martensite structure.
  • the present invention is based on the object of creating a kitchen worktop, a sink, a basin or a decorative surface made of sheet metal material which has a particularly hard and scratch-resistant surface.
  • this object is achieved by using a sheet metal material according to claim 1.
  • the present invention is thus based on the concept of solidifying the sheet metal material by solidification peening, in particular shot peening.
  • the hardness of the sheet metal material is increased by purely mechanical processing.
  • a structure is preferably introduced into the surface of the sheet metal material by the shot peening, by means of which the susceptibility of the surface to the occurrence of common household scratches is reduced.
  • both a front side and a rear side of the sheet metal material are each exposed to at least one solidifying jet.
  • the front side and the rear side of the sheet metal material are at least temporarily exposed to at least one solidifying jet each at the same time.
  • a so-called hotspot on the surface of the sheet metal material is assigned to each consolidation jet.
  • the hotspot of a solidification jet is understood to mean the smallest area in the area of a surface of the sheet metal material that is stationary with respect to the respective assigned solidification jet, within which 90 percent by weight of the blasting material present in the respective solidification jet hits the sheet metal material .
  • the hotspot usually has the shape of a rectangular strip.
  • the hotspot can, for example, also have an essentially circular shape.
  • a hotspot of a solidifying jet which acts on the front side of the sheet metal material and a hotspot of a hardening jet which acts on the rear side of the sheet metal material are at least 80%, preferably at least 90% %, overlap.
  • the sheet metal material to be hardened can in particular be in the form of a panel or a strip material unwound from a roll of sheet metal material.
  • the sheet metal material has an average material thickness of at most approximately 3 mm, in particular of at most approximately 2 mm, for example at most approximately 1.5 mm.
  • the sheet metal material is a stainless steel sheet material.
  • the stainless steel sheet material can in particular comprise a chrome-nickel stainless steel.
  • the stainless steel sheet material can include stainless steel with the material number 1.4301 according to EN 10027-2.
  • the sheet metal material Before the at least one solidification jet is applied, the sheet metal material preferably has an average initial surface hardness of at most approximately 200 HV.
  • the Vickers hardness in HV is determined by a hardness measurement according to DIN EN ISO 6507-1.
  • the sheet metal material After exposure to the at least one solidification jet, the sheet metal material has an average final surface hardness of at least approximately 300 HV, in particular of at least approximately 400 HV, particularly preferably of at least approximately 500 HV.
  • the at least one solidification jet is generated from a blasting material in which at least 50 percent by weight of the blasting material has a largest particle diameter of at least 0.8 mm.
  • a blasting material with such a large grain size is particularly suitable for the solidification blasting of relatively thin sheet metal material, since blasting material with a large particle size leaves a particularly strong deformation on the sheet metal material.
  • the tests carried out with the blasting material with a large grain size have shown that the desired surface structure and the desired surface hardening of the thin sheet metal material can be achieved with such a blasting material.
  • the device for carrying out the solidification irradiation of the sheet metal material with blasting material of such a large grain size must be able to transport and accelerate the heavy blasting material. Furthermore, the impact surface of the blasting material on the sheet metal material should be controllable as precisely as possible, specifically preferably both on the front side and on the rear side of the sheet metal material.
  • the at least one solidification jet is generated from a blasting material in which at least 50 percent by weight of the blasting material has a largest particle diameter of at most 1.0 mm.
  • the particles of the blasting material are preferably designed to be essentially spherical.
  • the sheet metal material is moved relative to the consolidation jet while it is exposed to the at least one solidification jet.
  • the peened stainless steel sheet material has a gray-silvery color, similar to concrete or stone.
  • the surface of the peened stainless steel sheet material appears matt and used.
  • the peened stainless steel sheet material is particularly suitable for use in industrial kitchens and "vintage kitchens".
  • the peened stainless steel sheet material is particularly insensitive to scratches.
  • the sheet metal material has both a front side which is surface-hardened by solidification irradiation and a rear side which is surface-hardened by solidification irradiation.
  • the material thickness of the sheet metal material is at most approximately 3 mm, in particular at most approximately 2 mm, for example at most 1.5 mm.
  • the sheet metal material is a stainless steel sheet material.
  • the sheet metal material can in particular be produced by the method described above for hardening a sheet metal material.
  • the sheet metal material is used in the production of a kitchen worktop, a sink or a basin, in particular a kitchen sink, for example a single basin or a double basin, or for the production of decorative surfaces, in particular in the field of facade design or interior design.
  • the present invention therefore also relates to a sheet metal product, namely a kitchen worktop, a sink or a basin, in particular a sink, for example a single basin or a double basin, or a decorative surface which comprises a sheet metal material, according to claim 3.
  • One in the Figs. 1 to 3 Device for solidification irradiation of a sheet metal material 102 shown purely schematically and designated as a whole by 100, comprises several, for example four, centrifugal wheels 104, which are each arranged and aligned in pairs mirror-symmetrically to a vertical transverse center plane 106 of device 100.
  • FIG. 1 how best to look Fig. 1
  • two upper centrifugal wheels 104a and 104b are arranged mirror-symmetrically with respect to the vertical transverse center plane 106
  • two lower centrifugal wheels 104c and 104d spaced in the vertical direction 108 from the centrifugal wheels 104a and 104b, are also arranged mirror-symmetrically with respect to the vertical transverse center plane 106 to each other.
  • Each of the centrifugal wheels 104 is able to generate a solidification jet 110 of blasting material particles from a blasting material which is fed to the respective centrifugal wheel 104 from a blasting material store (not shown) via a blasting material supply device (also not shown) the sheet metal material 102 is directed towards.
  • the centrifugal wheels 104a to 104d thus generate the consolidation jets 110a to 110d.
  • each impeller 104 comprises a turbine rotating rapidly around an axis of rotation 112, each with a plurality of blades (not shown), which pick up and accelerate the supplied blasting material, the centrifugal force acting on the co-rotating blasting material accelerating the blasting material particles outwards and finally throwing them off of the blasting material particles via the respective blade edge with the kinetic energy transferred up to then from the centrifugal wheel 104.
  • the direction of rotation of the centrifugal wheels 104 is in Fig. 1 indicated by arrows 114.
  • FIG Figs. 1 to 3 Exemplary trajectories of steel material particles after being thrown from the respective centrifugal wheel 104 are shown in FIG Figs. 1 to 3 represented by arrows 116.
  • the axes of rotation 112 of the centrifugal wheels 104 are preferably aligned essentially horizontally (that is to say essentially parallel to the horizontal direction 118) and preferably essentially parallel to the vertical transverse center plane 106 of the device 100 for solidification irradiation.
  • the sheet metal material 102 to be treated is preferably designed as a substantially flat panel 120 which has a length L of, for example, approximately 3,000 mm to approximately 5,000 mm in its longitudinal direction 122 and a width B of approximately 800, for example, in its transverse direction 124 oriented perpendicular to the longitudinal direction 122 mm to about 2,000 mm.
  • the sheet metal material 102 could also be designed as a continuous strip material which is unwound from a roll of strip material.
  • the mean material thickness or thickness D of the sheet metal material 102 is preferably at most approximately 3 mm, in particular at most approximately 2 mm, for example at most approximately 1.5 mm.
  • the mean material thickness or thickness D of the sheet metal material 102 is preferably at least approximately 0.5 mm, in particular at least approximately 0.7 mm, for example at least approximately 0.8 mm.
  • the sheet metal material 102 is preferably a stainless steel sheet metal material.
  • stainless steel with the material number 1.4301 according to EN 10027-2 can be used as sheet metal material 102.
  • This stainless steel material has the following chemical composition: 17.0 to 19.5 percent by weight Cr; 8.0 to 10.5 weight percent Ni; a maximum of 0.07 percent by weight of C; a maximum of 1.0 weight percent Si; a maximum of 2.0 percent by weight of Mn; a maximum of 0.045 percent by weight P; a maximum of 0.015 percent by weight S; a maximum of 0.11 percent by weight of N; Remainder Fe.
  • the initial surface hardness of this stainless steel sheet material is approximately 170 HV to approximately 180 HV before the solidification irradiation.
  • the sheet metal material 102 is moved by means of a movement device (not shown) relative to the centrifugal wheels 104 of the device 100 along the vertical transverse center plane 106 of the device 100.
  • the sheet metal material 102 is preferably fastened to the movement device in such a way that its longitudinal direction 122 is oriented essentially parallel to the horizontal direction 118 and / or its transverse direction 124 is oriented essentially parallel to the vertical direction 108.
  • the movement of the sheet metal material 102 by means of the movement device takes place along a direction of movement 126 which, for example, is oriented essentially horizontally.
  • the feed rate at which the sheet metal material 102 is moved relative to the centrifugal wheels 104 is, for example, approximately 1 m / min.
  • the energy of the impacting blasting material particles acting on the respective surface of the sheet metal material 102 leads to a plastic deformation of the sheet metal material 102 with an associated increase in the dislocation density in the metal lattice of the layers of the sheet metal material 102 close to the surface.
  • This work hardening is also expressed in an increased state of stress in the form of the so-called compressive residual stress, which compensates for tensile stresses present in the sheet metal material 102, counteracts external tensile stresses and thus increases the fatigue strength of the sheet metal material 102 and makes cracking and crack propagation more difficult.
  • a hotspot of a centrifugal wheel 104 is understood to be the smallest area in the area of a surface of the sheet metal material 102, which is fixed in relation to the associated centrifugal wheel 104 and within which 90 percent by weight of the blasting material ejected by the respective centrifugal wheel 104 is the sheet metal material 102 impinges.
  • Each hotspot 128 has the shape of a rectangular strip, the width of the strip b, that is to say its extension along the axis of rotation 112 of the respective centrifugal wheel 104 or along the longitudinal direction 122 of the sheet metal material 102, for example approximately 10 cm, while its height h, that is, its extent perpendicular to the axis of rotation 112 and / or parallel to the transverse direction 124 of the sheet metal material 102, for example about 150 cm (in the Figs. 1 to 3 the width b and the height h of a hotspot 128 are not shown to scale in relation to the length L and the width B of the sheet metal material 102).
  • the superimposed centrifugal wheels 104a and 104c on the front side 132 of the sheet metal material 102 and the superposed centrifugal wheels 104b and 104d on the rear side 134 of the sheet metal material 102 are arranged and aligned such that the hotspots 128a and 128c of the centrifugal wheels 104a and 104c cover the entire width B of the sheet metal material 102 in the vertical direction 108 and that the hotspots 128b and 128d of the centrifugal wheels 104b and 104d likewise essentially cover the entire width B of the sheet metal material 102 along the vertical direction 108.
  • the outer contours of the hotspots 128a and 128c are in Fig. 3 represented by broken lines 130a and 130c, respectively.
  • the hotspots 128a and 128c of superimposed centrifugal wheels 104a and 104c can overlap one another; however, such an overlap is not absolutely necessary.
  • the overlap area of the hotspots 128a and 128c is as small as possible.
  • the overlap area of the upper hotspots 128a and 128b is preferably at least 90% of the area of the hotspot 128a.
  • the overlap area of the lower hotspots 128c and 128d is preferably at least 90% of the area of the hotspot 128c.
  • Fig. 3 the outer contours 130b and 130d of the hotspots 128b and 128d, respectively, are drawn in such that they coincide with the outer contours 130a and 130c of the hotspots 128a and 128c, respectively, as there is an ideal overlap of 100% between the hotspots 128a, 128c on the front side 132 of the sheet metal material 102 corresponds to the hotspots 128b and 128d on the rear side 134 of the sheet metal material 102.
  • the application of the front side 132 and the rear side 134 of the sheet metal material 102 begins as soon as a first edge 136 of the sheet metal material 102 located at the front in the direction of movement 126 enters the area of the hotspots 128 and ends when a second edge located at the rear in the direction of movement 126 of the sheet metal material 102 Edge 138 of sheet metal material 102 leaves the area of hotspots 128.
  • the treatment time is thus, for example, approximately 282 seconds.
  • each spinner 104 is, for example, approximately 380 mm.
  • Each impeller 104 can have a turbine with, for example, six blades.
  • Each blade can, for example, have a blade width of 55 mm.
  • the ejection speed at which the blasting material particles are ejected from the centrifugal wheel 104 can be approximately 88 m / s, for example.
  • the throughput of blasting material per centrifugal wheel 104 can be approximately 200 kg / min, for example.
  • the drive power of each centrifugal wheel 104 can be approximately 11 kW, for example.
  • the blasting material used can be, for example, the high-grade steel blasting medium, which is available under the name "Chronital” from the company VULKAN INOX GmbH Abrasive Technology, Gottwaldstr. 21, 45525 Hattingen, Germany.
  • the blasting material has an austenitic microstructure.
  • the bulk weight of the blasting material is approximately 4.7 kg / dm 3 , for example.
  • the surface hardness of the blasting material in the delivery state is, for example, approximately 300 HV and in the ready-to-use mixture, for example, approximately 450 HV.
  • the sheet metal material 102 After the solidification irradiation has been carried out on the sheet metal material 102 with the material number 1.4301 and a material thickness of 1.0 mm, a width B of 1,500 mm and a length L of 4,000 mm and with the above-mentioned process parameters (in particular a feed rate of 1 m / min and a blasting material throughput of 200 kg / min at each centrifugal wheel 104 and a rotation speed of 3,000 rpm), a measurement of the surface hardness (Vickers hardness measurement according to DIN EN ISO 6507-1) at 18 points on the surface of the sheet metal material 102 resulted in an average value of Surface hardness of 334 HV and a fluctuation range of surface hardness from 233 HV to 453 HV.
  • the above-mentioned process parameters in particular a feed rate of 1 m / min and a blasting material throughput of 200 kg / min at each centrifugal wheel 104 and a rotation speed of 3,000 r
  • the sheet metal material 102 surface-hardened in the manner described above by means of the device 100 for solidification irradiation can be used in particular for the production of sheet metal blanks for kitchen worktops or for the production of folding blanks for folded sinks, in particular so-called "zero radius basins".
  • the peened stainless steel sheet material has a gray-silvery color, similar to concrete or stone, and preferably has no yellow tinge.
  • the surface of the peened stainless steel sheet material appears matt and used.
  • the peened stainless steel sheet material is scratch-resistant.
  • the peened stainless steel sheet material can be processed further by means of the usual techniques, in particular bending technology, welding technology and welding technology.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Description

Die vorliegende Erfindung betrifft eine Verwendung eines durch Verfestigungsbestrahlung oberflächengehärteten Metallblechmaterials.The present invention relates to a use of a sheet metal material which has been surface-hardened by radiation solidification.

Metallblechmaterial, insbesondere Edelstahlblechmaterial, wird insbesondere zur Herstellung von Küchenarbeitsplatten, Spülen oder Becken verwendet.Sheet metal material, in particular stainless steel sheet material, is used in particular for the production of kitchen countertops, sinks or basins.

An die optische Qualität von Küchenarbeitsplatten, Spülen und Becken werden einerseits hohe Anforderungen gestellt; andererseits besteht bei diesen Erzeugnissen eine besonders hohe Gefahr, dass die optische Qualität durch Kratzer reduziert wird.On the one hand, high demands are placed on the optical quality of kitchen worktops, sinks and basins; on the other hand, there is a particularly high risk with these products that the optical quality is reduced by scratches.

Die DE 199 52 514 C1 offenbart die Verwendung eines Metallblechmaterials zur Herstellung einer Spüle oder eines Beckens, wobei das Metallblechmaterial eine durch Verfestigungsbestrahlung oberflächengehärtete Sichtseite umfasst und wobei das Metallblechmaterial ein Edelstahlblechmaterial ist.The DE 199 52 514 C1 discloses the use of a sheet metal material for the production of a sink or a basin, the sheet metal material comprising a visible side which is surface-hardened by solidification radiation and the sheet metal material is a stainless steel sheet material.

Die JP 2003 211360 A offenbart ein Verfahren zur Behandlung eines Metallblechmaterials, bei welchem eine Vorderseite des Metallblechmaterials und eine Rückseite des Metallblechmaterials mit jeweils mindestens einem Verfestigungsstrahl beaufschlagt werden.The JP 2003 211360 A discloses a method for treating a sheet metal material, in which a front side of the sheet metal material and a rear side of the sheet metal material are each exposed to at least one solidifying jet.

Die JP 01 312 029 A offenbart ein Verfahren zur Behandlung eines Metallblechmaterials, bei welchem eine Vorderseite und eine Rückseite eines Metallblechmaterials bereichsweise mit jeweils einem Verfestigungsstrahl beaufschlagt werden, um eine Austenit-Struktur in eine Martensit-Struktur zu überführen.The JP 01 312 029 A discloses a method for treating a sheet metal material, in which a front side and a rear side of a sheet metal material are each exposed to a hardening jet in areas in order to convert an austenite structure into a martensite structure.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Küchenarbeitsplatte, eine Spüle, ein Becken oder eine Dekorfläche aus einem Metallblechmaterial zu schaffen, welches eine besonders harte und kratzfeste Oberfläche aufweist.The present invention is based on the object of creating a kitchen worktop, a sink, a basin or a decorative surface made of sheet metal material which has a particularly hard and scratch-resistant surface.

Diese Aufgabe wird erfindungsgemäß durch eine Verwendung eines Metallblechmaterials nach Anspruch 1 gelöst.According to the invention, this object is achieved by using a sheet metal material according to claim 1.

Der vorliegenden Erfindung liegt somit das Konzept zugrunde, das Metallblechmaterial durch Verfestigungsstrahlen, insbesondere Kugelstrahlen, zu verfestigen.The present invention is thus based on the concept of solidifying the sheet metal material by solidification peening, in particular shot peening.

Dabei wird die Härte des Metallblechmaterials durch eine rein mechanische Bearbeitung erhöht.The hardness of the sheet metal material is increased by purely mechanical processing.

Ferner wird vorzugsweise durch das Verfestigungsstrahlen eine Struktur in die Oberfläche des Metallblechmaterials eingebracht, durch welche die Anfälligkeit der Oberfläche für das Entstehen haushaltsüblicher Kratzer reduziert wird.Furthermore, a structure is preferably introduced into the surface of the sheet metal material by the shot peening, by means of which the susceptibility of the surface to the occurrence of common household scratches is reduced.

Es ist vorgesehen, dass sowohl eine Vorderseite als auch eine Rückseite des Metallblechmaterials mit jeweils mindestens einem Verfestigungsstrahl beaufschlagt werden.It is provided that both a front side and a rear side of the sheet metal material are each exposed to at least one solidifying jet.

Um den Verzug bei der Bearbeitung des Metallblechmaterials gering zu halten, ist es günstig, dass die Vorderseite und die Rückseite des Metallblechmaterials zumindest zeitweise gleichzeitig mit jeweils mindestens einem Verfestigungsstrahl beaufschlagt werden.In order to keep the delay in the processing of the sheet metal material low, it is favorable that the front side and the rear side of the sheet metal material are at least temporarily exposed to at least one solidifying jet each at the same time.

Besonders günstig ist es, wenn die Vorderseite und die Rückseite des Metallblechmaterials während des gesamten Härtungsverfahrens gleichzeitig mit jeweils mindestens einem Verfestigungsstrahl beaufschlagt werden.It is particularly favorable if the front side and the rear side of the sheet metal material are acted upon simultaneously with at least one hardening jet each during the entire hardening process.

Jedem Verfestigungsstrahl ist ein sogenannter Hotspot an der Oberfläche des Metallblechmaterials zugeordnet.A so-called hotspot on the surface of the sheet metal material is assigned to each consolidation jet.

Unter dem Hotspot eines Verfestigungsstrahls wird in dieser Beschreibung und in den beigefügten Ansprüchen die kleinste, in Bezug auf den jeweils zugeordneten Verfestigungsstrahl ortsfeste, Fläche im Bereich einer Oberfläche des Metallblechmaterials verstanden, innerhalb welcher 90 Gewichtsprozent des in dem jeweiligen Verfestigungsstrahl vorhandenen Strahlguts auf das Metallblechmaterial auftrifft.In this description and in the appended claims, the hotspot of a solidification jet is understood to mean the smallest area in the area of a surface of the sheet metal material that is stationary with respect to the respective assigned solidification jet, within which 90 percent by weight of the blasting material present in the respective solidification jet hits the sheet metal material .

Wenn der Verfestigungsstrahl mittels eines Schleuderrads erzeugt wird, so hat der Hotspot üblicherweise die Form eines rechteckigen Streifens.If the solidification jet is generated by means of a centrifugal wheel, the hotspot usually has the shape of a rectangular strip.

Wenn der Verfestigungsstrahl in anderer Weise erzeugt wird, kann der Hotspot beispielsweise auch im Wesentlichen kreisförmig ausgebildet sein.If the solidification jet is generated in a different way, the hotspot can, for example, also have an essentially circular shape.

Zur Vermeidung von Verzügen an dem Metallblechmaterial hat es sich als günstig erwiesen, wenn ein Hotspot eines Verfestigungsstrahls, welcher die Vorderseite des Metallblechmaterials beaufschlagt, und ein Hotspot eines Verfestigungsstrahls, welcher die Rückseite des Metallblechmaterials beaufschlagt, sich zu mindestens 80%, vorzugsweise zu mindestens 90%, überlappen.In order to avoid distortions on the sheet metal material, it has proven to be advantageous if a hotspot of a solidifying jet which acts on the front side of the sheet metal material and a hotspot of a hardening jet which acts on the rear side of the sheet metal material are at least 80%, preferably at least 90% %, overlap.

Das zu härtende Metallblechmaterial kann insbesondere in der Form einer Tafel oder eines von einer Metallblechmaterial-Rolle abgewickelten Bandmaterials vorliegen.The sheet metal material to be hardened can in particular be in the form of a panel or a strip material unwound from a roll of sheet metal material.

Das Metallblechmaterial weist eine mittlere Materialstärke von höchstens ungefähr 3 mm, insbesondere von höchstens ungefähr 2 mm, beispielsweise von höchstens ungefähr 1,5 mm, auf.The sheet metal material has an average material thickness of at most approximately 3 mm, in particular of at most approximately 2 mm, for example at most approximately 1.5 mm.

Das Metallblechmaterial ist ein Edelstahlblechmaterial.The sheet metal material is a stainless steel sheet material.

Das Edelstahlblechmaterial kann insbesondere einen Chrom-Nickel-Edelstahl umfassen.The stainless steel sheet material can in particular comprise a chrome-nickel stainless steel.

Beispielsweise kann das Edelstahlblechmaterial den Edelstahl mit der Werkstoffnummer 1.4301 gemäß der EN 10027-2 umfassen.For example, the stainless steel sheet material can include stainless steel with the material number 1.4301 according to EN 10027-2.

Vor dem Beaufschlagen mit dem mindestens einen Verfestigungsstrahl weist das Metallblechmaterial vorzugsweise eine mittlere Ausgangs-Oberflächenhärte von höchstens ungefähr 200 HV auf.Before the at least one solidification jet is applied, the sheet metal material preferably has an average initial surface hardness of at most approximately 200 HV.

Die Vickershärte in HV wird dabei durch eine Härtemessung nach DIN EN ISO 6507-1 bestimmt.The Vickers hardness in HV is determined by a hardness measurement according to DIN EN ISO 6507-1.

Nach dem Beaufschlagen mit dem mindestens einen Verfestigungsstrahl weist das Metallblechmaterial eine mittlere End-Oberflächenhärte von mindestens ungefähr 300 HV, insbesondere von mindestens ungefähr 400 HV, besonders bevorzugt von mindestens ungefähr 500 HV, auf.After exposure to the at least one solidification jet, the sheet metal material has an average final surface hardness of at least approximately 300 HV, in particular of at least approximately 400 HV, particularly preferably of at least approximately 500 HV.

Um eine optimale Oberflächenstruktur und eine besonders hohe Verfestigung zu erzielen, ist es günstig, wenn der mindestens eine Verfestigungsstrahl aus einem Strahlgut erzeugt wird, bei welchem mindestens 50 Gewichtsprozent des Strahlguts einen größten Teilchendurchmesser von mindestens 0,8 mm aufweisen.In order to achieve an optimal surface structure and a particularly high level of solidification, it is advantageous if the at least one solidification jet is generated from a blasting material in which at least 50 percent by weight of the blasting material has a largest particle diameter of at least 0.8 mm.

Es ist für den Fachmann besonders überraschend, dass ein Strahlgut mit einer solch großen Korngröße gerade für die Verfestigungsbestrahlung von relativ dünnem Metallblechmaterial besonders geeignet ist, da Strahlgut mit einer großen Korngröße eine besonders starke Verformung an dem Metallblechmaterial hinterlässt. Die mit dem Strahlgut mit großer Korngröße durchgeführten Versuche haben aber gezeigt, dass mit einem solchen Strahlgut die gewünschte Oberflächenstruktur und die gewünschte Oberflächenhärtung des dünnen Metallblechmaterials erzielbar ist.It is particularly surprising for the person skilled in the art that a blasting material with such a large grain size is particularly suitable for the solidification blasting of relatively thin sheet metal material, since blasting material with a large particle size leaves a particularly strong deformation on the sheet metal material. However, the tests carried out with the blasting material with a large grain size have shown that the desired surface structure and the desired surface hardening of the thin sheet metal material can be achieved with such a blasting material.

Die Vorrichtung zur Durchführung der Verfestigungsbestrahlung des Metallblechmaterials mit Strahlgut einer solch großen Korngröße muss dazu in der Lage sein, das schwere Strahlgut zu transportieren und zu beschleunigen. Ferner sollte die Aufprallfläche des Strahlguts an dem Metallblechmaterial möglichst genau ansteuerbar sein, und zwar vorzugsweise sowohl auf der Vorderseite als auch auf der Rückseite des Metallblechmaterials.The device for carrying out the solidification irradiation of the sheet metal material with blasting material of such a large grain size must be able to transport and accelerate the heavy blasting material. Furthermore, the impact surface of the blasting material on the sheet metal material should be controllable as precisely as possible, specifically preferably both on the front side and on the rear side of the sheet metal material.

Ferner hat es sich als günstig erwiesen, wenn der mindestens eine Verfestigungsstrahl aus einem Strahlgut erzeugt wird, bei welchem mindestens 50 Gewichtsprozent des Strahlguts einen größten Teilchendurchmesser von höchstens 1,0 mm aufweisen.Furthermore, it has proven to be advantageous if the at least one solidification jet is generated from a blasting material in which at least 50 percent by weight of the blasting material has a largest particle diameter of at most 1.0 mm.

Die Teilchen des Strahlguts sind vorzugsweise im Wesentlichen kugelförmig ausgebildet.The particles of the blasting material are preferably designed to be essentially spherical.

Besonders günstig ist es, wenn im Wesentlichen alle Teilchen des Strahlguts einen größten Teilchendurchmesser im Bereich von ungefähr 0,2 mm bis ungefähr 1,0 mm aufweisen.It is particularly favorable if essentially all of the particles in the blasting material have a largest particle diameter in the range from approximately 0.2 mm to approximately 1.0 mm.

Bei einer bevorzugten Ausgestaltung der Erfindung ist vorgesehen, dass das Metallblechmaterial während der Beaufschlagung mit dem mindestens einen Verfestigungsstrahl relativ zu dem Verfestigungsstrahl bewegt wird.In a preferred embodiment of the invention, it is provided that the sheet metal material is moved relative to the consolidation jet while it is exposed to the at least one solidification jet.

Wenn als Metallblechmaterial ein Edelstahlblechmaterial verwendet wird, so weist das verfestigungsbestrahlte Edelstahlblechmaterial eine grau-silbrige Farbe, ähnlich wie Beton oder Stein, auf.If a stainless steel sheet material is used as the sheet metal material, the peened stainless steel sheet material has a gray-silvery color, similar to concrete or stone.

Die Oberfläche des verfestigungsbestrahlten Edelstahlblechmaterials wirkt matt und gebraucht.The surface of the peened stainless steel sheet material appears matt and used.

Durch eine bewusst abgenutzt und gebraucht wirkende Betonoptik mit beabsichtigten Gebrauchsspuren eignet sich das verfestigungsbestrahlte Edelstahlblechmaterial insbesondere zur Verwendung im Bereich von Industrieküchen und "Vintage-Küchen".Due to a consciously worn and used-looking concrete look with intended signs of use, the peened stainless steel sheet material is particularly suitable for use in industrial kitchens and "vintage kitchens".

Durch die Oberflächenhärtung ist das verfestigungsbestrahlte Edelstahlblechmaterial besonders kratzunempfindlich.Due to the surface hardening, the peened stainless steel sheet material is particularly insensitive to scratches.

Das Metallblechmaterial weist sowohl eine durch Verfestigungsbestrahlung oberflächengehärtete Vorderseite als auch eine durch Verfestigungsbestrahlung oberflächengehärtete Rückseite auf.The sheet metal material has both a front side which is surface-hardened by solidification irradiation and a rear side which is surface-hardened by solidification irradiation.

Die Materialstärke des Metallblechmaterials beträgt höchstens ungefähr 3 mm, insbesondere höchstens ungefähr 2 mm, beispielsweise höchstens 1,5 mm.The material thickness of the sheet metal material is at most approximately 3 mm, in particular at most approximately 2 mm, for example at most 1.5 mm.

Bei der Erfindung ist vorgesehen, dass das Metallblechmaterial ein Edelstahlblechmaterial ist.In the invention it is provided that the sheet metal material is a stainless steel sheet material.

Das Metallblechmaterial kann insbesondere durch das vorstehend beschriebene Verfahren zum Härten eines Metallblechmaterials hergestellt sein.The sheet metal material can in particular be produced by the method described above for hardening a sheet metal material.

Das Metallblechmaterial wird verwendet bei der Herstellung einer Küchenarbeitsplatte, einer Spüle oder eines Beckens, insbesondere eines Spülbeckens, beispielsweise eines Einzelbeckens oder eines Doppelbeckens, oder zur Herstellung von Dekorflächen, insbesondere im Bereich der Fassadengestaltung oder der Innenraumgestaltung.The sheet metal material is used in the production of a kitchen worktop, a sink or a basin, in particular a kitchen sink, for example a single basin or a double basin, or for the production of decorative surfaces, in particular in the field of facade design or interior design.

Die vorliegende Erfindung betrifft daher auch ein Metallblechprodukt, nämlich eine Küchenarbeitsplatte, eine Spüle oder ein Becken, insbesondere ein Spülbecken, beispielsweise ein Einzelbecken oder ein Doppelbecken, oder eine Dekorfläche, welches ein Metallblechmaterial umfasst, gemäß Anspruch 3.The present invention therefore also relates to a sheet metal product, namely a kitchen worktop, a sink or a basin, in particular a sink, for example a single basin or a double basin, or a decorative surface which comprises a sheet metal material, according to claim 3.

Weitere Merkmale und Vorteile der Erfindung sind Gegenstand der nachfolgenden Beschreibung und der zeichnerischen Darstellung eines Ausführungsbeispiels.Further features and advantages of the invention are the subject matter of the following description and the graphic representation of an exemplary embodiment.

In den Zeichnungen zeigen:

Fig. 1
eine schematische Seitenansicht einer Vorrichtung zur Verfestigungsbestrahlung eines Metallblechmaterials, wobei die Vorrichtung zwei Schleuderräder zur Beaufschlagung einer Vorderseite des Metallblechmaterials mit Verfestigungsstrahlen und zwei Schleuderräder zum Beaufschlagen einer Rückseite des Metallblechmaterials mit Verfestigungsstrahlen umfasst;
Fig. 2
eine Draufsicht von oben auf die Vorrichtung zur Verfestigungsbestrahlung des Metallblechmaterials aus Fig. 1, mit der Blickrichtung in Richtung des Pfeiles 2 in Fig. 1; und
Fig. 3
eine Vorderansicht der Vorrichtung zur Verfestigungsbestrahlung des Metallblechmaterials aus den Fig. 1 und 2, mit der Blickrichtung in Richtung der Pfeile 3 in den Fig. 1 und 2.
In the drawings show:
Fig. 1
a schematic side view of a device for solidification blasting a sheet metal material, wherein the device comprises two centrifugal wheels for impinging a front side of the sheet metal material with solidification jets and two centrifugal wheels for subjecting a rear side of the sheet metal material with solidifying jets;
Fig. 2
a plan view from above of the device for solidification irradiation of the sheet metal material Fig. 1 , looking in the direction of arrow 2 in Fig. 1 ; and
Fig. 3
a front view of the device for solidification irradiation of the sheet metal material from Fig. 1 and 2 , looking in the direction of the arrows 3 in the Fig. 1 and 2 .

Gleiche oder funktional äquivalente Elemente sind in allen Figuren mit denselben Bezugszeichen bezeichnet.Identical or functionally equivalent elements are denoted by the same reference symbols in all figures.

Eine in den Fig. 1 bis 3 rein schematisch dargestellte, als Ganzes mit 100 bezeichnete Vorrichtung zur Verfestigungsbestrahlung eines Metallblechmaterials 102 umfasst mehrere, beispielsweise vier, Schleuderräder 104, die jeweils paarweise spiegelsymmetrisch zu einer vertikalen Quermittelebene 106 der Vorrichtung 100 angeordnet und ausgerichtet sind.One in the Figs. 1 to 3 Device for solidification irradiation of a sheet metal material 102, shown purely schematically and designated as a whole by 100, comprises several, for example four, centrifugal wheels 104, which are each arranged and aligned in pairs mirror-symmetrically to a vertical transverse center plane 106 of device 100.

Wie am besten aus Fig. 1 zu ersehen ist, sind insbesondere zwei obere Schleuderräder 104a und 104b spiegelsymmetrisch in Bezug auf die vertikale Quermittelebene 106 angeordnet, und zwei in der Vertikalrichtung 108 von den Schleuderrädern 104a und 104b beabstandete untere Schleuderräder 104c und 104d sind ebenfalls spiegelsymmetrisch zur vertikalen Quermittelebene 106 zueinander angeordnet.How best to look Fig. 1 As can be seen, in particular two upper centrifugal wheels 104a and 104b are arranged mirror-symmetrically with respect to the vertical transverse center plane 106, and two lower centrifugal wheels 104c and 104d, spaced in the vertical direction 108 from the centrifugal wheels 104a and 104b, are also arranged mirror-symmetrically with respect to the vertical transverse center plane 106 to each other.

Jedes der Schleuderräder 104 ist dazu in der Lage, aus einem Strahlgut, welches dem jeweiligen Schleuderrad 104 aus einem (nicht dargestellten) Strahlgutspeicher über eine (ebenfalls nicht dargestellte) Strahlgutzuführvorrichtung zugeführt wird, jeweils einen Verfestigungsstrahl 110 aus Strahlgut-Teilchen zu erzeugen, welcher zu dem Metallblechmaterial 102 hin gerichtet ist.Each of the centrifugal wheels 104 is able to generate a solidification jet 110 of blasting material particles from a blasting material which is fed to the respective centrifugal wheel 104 from a blasting material store (not shown) via a blasting material supply device (also not shown) the sheet metal material 102 is directed towards.

Die Schleuderräder 104a bis 104d erzeugen somit die Verfestigungsstrahlen 110a bis 110d.The centrifugal wheels 104a to 104d thus generate the consolidation jets 110a to 110d.

Hierfür umfasst jedes Schleuderrad 104 eine schnell um eine Rotationsachse 112 rotierende Turbine mit jeweils mehreren (nicht dargestellten) Schaufeln, welche das zugeführte Strahlgut aufnehmen und beschleunigen, wobei die auf das mitrotierende Strahlgut wirkende Zentrifugalkraft eine Beschleunigung der Strahlgut-Teilchen nach außen und schließlich einen Abwurf der Strahlgut-Teilchen über die jeweilige Schaufelkante mit der bis dahin übertragenen kinetischen Energie aus dem Schleuderrad 104 heraus bewirkt.For this purpose, each impeller 104 comprises a turbine rotating rapidly around an axis of rotation 112, each with a plurality of blades (not shown), which pick up and accelerate the supplied blasting material, the centrifugal force acting on the co-rotating blasting material accelerating the blasting material particles outwards and finally throwing them off of the blasting material particles via the respective blade edge with the kinetic energy transferred up to then from the centrifugal wheel 104.

Die Drehrichtung der Schleuderräder 104 ist in Fig. 1 durch die Pfeile 114 angegeben.The direction of rotation of the centrifugal wheels 104 is in Fig. 1 indicated by arrows 114.

Beispielhafte Trajektorien von Stahlgut-Teilchen nach dem Abwurf aus dem jeweiligen Schleuderrad 104 sind in den Fig. 1 bis 3 durch die Pfeile 116 dargestellt.Exemplary trajectories of steel material particles after being thrown from the respective centrifugal wheel 104 are shown in FIG Figs. 1 to 3 represented by arrows 116.

Die Rotationsachsen 112 der Schleuderräder 104 sind vorzugsweise im Wesentlichen horizontal (das heißt im Wesentlichen parallel zur Horizontalrichtung 118) und vorzugsweise im Wesentlichen parallel zu der vertikalen Quermittelebene 106 der Vorrichtung 100 zur Verfestigungsbestrahlung ausgerichtet.The axes of rotation 112 of the centrifugal wheels 104 are preferably aligned essentially horizontally (that is to say essentially parallel to the horizontal direction 118) and preferably essentially parallel to the vertical transverse center plane 106 of the device 100 for solidification irradiation.

Das zu behandelnde Metallblechmaterial 102 ist vorzugsweise als eine im Wesentlichen ebene Tafel 120 ausgebildet, die in ihrer Längsrichtung 122 eine Länge L von beispielsweise ungefähr 3.000 mm bis ungefähr 5.000 mm und in ihrer senkrecht zur Längsrichtung 122 ausgerichteten Querrichtung 124 eine Breite B von beispielsweise ungefähr 800 mm bis ungefähr 2.000 mm aufweist.The sheet metal material 102 to be treated is preferably designed as a substantially flat panel 120 which has a length L of, for example, approximately 3,000 mm to approximately 5,000 mm in its longitudinal direction 122 and a width B of approximately 800, for example, in its transverse direction 124 oriented perpendicular to the longitudinal direction 122 mm to about 2,000 mm.

Alternativ hierzu könnte das Metallblechmaterial 102 auch als ein kontinuierliches Bandmaterial ausgebildet sein, das von einer Bandmaterial-Rolle abgewickelt wird.As an alternative to this, the sheet metal material 102 could also be designed as a continuous strip material which is unwound from a roll of strip material.

Die mittlere Materialstärke oder Dicke D des Metallblechmaterials 102 beträgt vorzugsweise höchstens ungefähr 3 mm, insbesondere höchstens ungefähr 2 mm, beispielsweise höchstens ungefähr 1,5 mm.The mean material thickness or thickness D of the sheet metal material 102 is preferably at most approximately 3 mm, in particular at most approximately 2 mm, for example at most approximately 1.5 mm.

Ferner beträgt die mittlere Materialstärke oder Dicke D des Metallblechmaterials 102 vorzugsweise mindestens ungefähr 0,5 mm, insbesondere mindestens ungefähr 0,7 mm, beispielsweise mindestens ungefähr 0,8 mm.Furthermore, the mean material thickness or thickness D of the sheet metal material 102 is preferably at least approximately 0.5 mm, in particular at least approximately 0.7 mm, for example at least approximately 0.8 mm.

Das Metallblechmaterial 102 ist vorzugsweise ein Edelstahlmetallblechmaterial.The sheet metal material 102 is preferably a stainless steel sheet metal material.

Beispielsweise kann als Metallblechmaterial 102 der Edelstahl mit der Werkstoffnummer 1.4301 gemäß der EN 10027-2 verwendet werden.For example, stainless steel with the material number 1.4301 according to EN 10027-2 can be used as sheet metal material 102.

Dieses Edelstahlmaterial weist die folgende chemische Zusammensetzung auf: 17,0 bis 19,5 Gewichtsprozent Cr; 8,0 bis 10,5 Gewichtsprozent Ni; maximal 0,07 Gewichtsprozent C; maximal 1,0 Gewichtsprozent Si; maximal 2,0 Gewichtsprozent Mn; maximal 0,045 Gewichtsprozent P; maximal 0,015 Gewichtsprozent S; maximal 0,11 Gewichtsprozent N; Rest Fe.This stainless steel material has the following chemical composition: 17.0 to 19.5 percent by weight Cr; 8.0 to 10.5 weight percent Ni; a maximum of 0.07 percent by weight of C; a maximum of 1.0 weight percent Si; a maximum of 2.0 percent by weight of Mn; a maximum of 0.045 percent by weight P; a maximum of 0.015 percent by weight S; a maximum of 0.11 percent by weight of N; Remainder Fe.

Die Ausgangs-Oberflächenhärte dieses Edelstahlblechmaterials beträgt vor der Verfestigungsbestrahlung ungefähr 170 HV bis ungefähr 180 HV.The initial surface hardness of this stainless steel sheet material is approximately 170 HV to approximately 180 HV before the solidification irradiation.

Das Metallblechmaterial 102 wird mittels einer (nicht dargestellten) Bewegungsvorrichtung relativ zu den Schleuderrädern 104 der Vorrichtung 100 längs der vertikalen Quermittelebene 106 der Vorrichtung 100 bewegt.The sheet metal material 102 is moved by means of a movement device (not shown) relative to the centrifugal wheels 104 of the device 100 along the vertical transverse center plane 106 of the device 100.

Dabei wird das Metallblechmaterial 102 vorzugsweise so an der Bewegungsvorrichtung befestigt, dass seine Längsrichtung 122 im Wesentlichen parallel zur Horizontalrichtung 118 und/oder seine Querrichtung 124 im Wesentlichen parallel zu der Vertikalrichtung 108 ausgerichtet ist.The sheet metal material 102 is preferably fastened to the movement device in such a way that its longitudinal direction 122 is oriented essentially parallel to the horizontal direction 118 and / or its transverse direction 124 is oriented essentially parallel to the vertical direction 108.

Die Bewegung des Metallblechmaterials 102 mittels der Bewegungsvorrichtung erfolgt längs einer Bewegungsrichtung 126, welche beispielsweise im Wesentlichen horizontal ausgerichtet ist.The movement of the sheet metal material 102 by means of the movement device takes place along a direction of movement 126 which, for example, is oriented essentially horizontally.

Es wäre aber auch möglich, das Metallblechmaterial 102 relativ zu den Schleuderrädern 104 längs einer Bewegungsrichtung 126 zu bewegen, welche im Wesentlichen vertikal verläuft.However, it would also be possible to move the sheet metal material 102 relative to the centrifugal wheels 104 along a direction of movement 126 which runs essentially vertically.

Die Vorschubgeschwindigkeit, mit welcher das Metallblechmaterial 102 relativ zu den Schleuderrädern 104 bewegt wird, beträgt beispielsweise ungefähr 1 m/min.The feed rate at which the sheet metal material 102 is moved relative to the centrifugal wheels 104 is, for example, approximately 1 m / min.

Wenn das Metallblechmaterial 102 zwischen den Schleuderrädern 104 hindurchbewegt wird, treffen die meisten der von den Schleuderrädern 104 ausgeworfenen Strahlgut-Teilchen innerhalb eines sogenannten Hotspots 128 des jeweiligen Verfestigungsstrahls 110 auf einer Vorderseite 132 oder auf einer der Vorderseite 132 gegenüberliegenden Rückseite 134 des Metallblechmaterials 102 auf dem Metallblechmaterial 102 auf.When the sheet metal material 102 is moved through between the centrifugal wheels 104, most of the blasting material particles ejected by the centrifugal wheels 104 hit within a so-called hotspot 128 of the respective solidification jet 110 on a front side 132 or on a rear side 134 of the sheet metal material 102 opposite the front side 132 Sheet metal material 102.

Die auf die jeweilige Oberfläche des Metallblechmaterials 102 einwirkende Energie der auftreffenden Strahlgut-Teilchen führt zu einer plastischen Verformung des Metallblechmaterials 102 mit damit einhergehender Erhöhung der Versetzungsdichte im Metallgitter der oberflächennahen Schichten des Metallblechmaterials 102.The energy of the impacting blasting material particles acting on the respective surface of the sheet metal material 102 leads to a plastic deformation of the sheet metal material 102 with an associated increase in the dislocation density in the metal lattice of the layers of the sheet metal material 102 close to the surface.

Diese Kaltverfestigung äußert sich außerdem in einem erhöhten Spannungszustand in Form der sogenannten Druckeigenspannung, die in dem Metallblechmaterial 102 vorhandene Zugspannungen kompensiert, äußeren Zugspannungen entgegenwirkt und damit die Dauerfestigkeit des Metallblechmaterials 102 erhöht sowie die Rissbildung und Rissausbreitung erschwert.This work hardening is also expressed in an increased state of stress in the form of the so-called compressive residual stress, which compensates for tensile stresses present in the sheet metal material 102, counteracts external tensile stresses and thus increases the fatigue strength of the sheet metal material 102 and makes cracking and crack propagation more difficult.

Unter einem Hotspot eines Schleuderrads 104 wird in dieser Beschreibung und in den beigefügten Ansprüchen die kleinste, in Bezug auf das jeweils zugeordnete Schleuderrad 104 ortsfeste Fläche im Bereich einer Oberfläche des Metallblechmaterials 102 verstanden, innerhalb welcher 90 Gewichtsprozent des von dem jeweiligen Schleuderrad 104 ausgeworfenen Strahlguts auf das Metallblechmaterial 102 auftrifft.In this description and in the appended claims, a hotspot of a centrifugal wheel 104 is understood to be the smallest area in the area of a surface of the sheet metal material 102, which is fixed in relation to the associated centrifugal wheel 104 and within which 90 percent by weight of the blasting material ejected by the respective centrifugal wheel 104 is the sheet metal material 102 impinges.

Jeder Hotspot 128 hat die Form eines rechteckigen Streifens, wobei die Breite des Streifens b, das heißt dessen Ausdehnung längs der Rotationsachse 112 des jeweiligen Schleuderrads 104 oder längs der Längsrichtung 122 des Metallblechmaterials 102, beispielsweise ungefähr 10 cm betragen kann, während dessen Höhe h, das heißt dessen Ausdehnung senkrecht zur Rotationsachse 112 und/oder parallel zur Querrichtung 124 des Metallblechmaterials 102, beispielsweise ungefähr 150 cm betragen kann (in den Fig. 1 bis 3 sind die Breite b und die Höhe h eines Hotspots 128 nicht maßstäblich im Verhältnis zu der Länge L und der Breite B des Metallblechmaterials 102 dargestellt).Each hotspot 128 has the shape of a rectangular strip, the width of the strip b, that is to say its extension along the axis of rotation 112 of the respective centrifugal wheel 104 or along the longitudinal direction 122 of the sheet metal material 102, for example approximately 10 cm, while its height h, that is, its extent perpendicular to the axis of rotation 112 and / or parallel to the transverse direction 124 of the sheet metal material 102, for example about 150 cm (in the Figs. 1 to 3 the width b and the height h of a hotspot 128 are not shown to scale in relation to the length L and the width B of the sheet metal material 102).

Wie am besten aus Fig. 3 zu ersehen ist, sind die übereinander angeordneten Schleuderräder 104a und 104c an der Vorderseite 132 des Metallblechmaterials 102 und die übereinander angeordneten Schleuderräder 104b und 104d an der Rückseite 134 des Metallblechmaterials 102 so angeordnet und ausgerichtet, dass die Hotspots 128a und 128c der Schleuderräder 104a und 104c in der Vertikalrichtung 108 die gesamte Breite B des Metallblechmaterials 102 überdecken und dass die Hotspots 128b und 128d der Schleuderräder 104b beziehungsweise 104d ebenfalls längs der Vertikalrichtung 108 im Wesentlichen die gesamte Breite B des Metallblechmaterials 102 überdecken.How best to look Fig. 3 As can be seen, the superimposed centrifugal wheels 104a and 104c on the front side 132 of the sheet metal material 102 and the superposed centrifugal wheels 104b and 104d on the rear side 134 of the sheet metal material 102 are arranged and aligned such that the hotspots 128a and 128c of the centrifugal wheels 104a and 104c cover the entire width B of the sheet metal material 102 in the vertical direction 108 and that the hotspots 128b and 128d of the centrifugal wheels 104b and 104d likewise essentially cover the entire width B of the sheet metal material 102 along the vertical direction 108.

Die Außenkonturen der Hotspots 128a und 128c sind in Fig. 3 durch die gebrochenen Linien 130a beziehungsweise 130c dargestellt.The outer contours of the hotspots 128a and 128c are in Fig. 3 represented by broken lines 130a and 130c, respectively.

Die Hotspots 128a und 128c von übereinander angeordneten Schleuderrädern 104a und 104c können einander überlappen; eine solche Überlappung ist aber nicht zwingend erforderlich.The hotspots 128a and 128c of superimposed centrifugal wheels 104a and 104c can overlap one another; however, such an overlap is not absolutely necessary.

Um eine möglichst homogene Kaltverfestigung des Metallblechmaterials 102 zu erzielen, ist es günstig, wenn der Überlappungsbereich der Hotspots 128a und 128c möglichst gering ist.In order to achieve the most homogeneous work hardening of the sheet metal material 102 possible, it is advantageous if the overlap area of the hotspots 128a and 128c is as small as possible.

Andererseits ist es zur Vermeidung eines Verzuges des relativ dünnen Metallblechmaterials 102 während der Verfestigungsbestrahlung von Vorteil, wenn die Hotspots 128a und 128b der oberen Schleuderräder 104a und 104b einander möglichst stark überlappen und auch die Hotspots 128c und 128d der unteren Schleuderräder 104c und 104d einander möglichst stark überlappen, damit die Beaufschlagung der Vorderseite 132 und der Rückseite 134 des Metallblechmaterials 102 mit den Verfestigungsstrahlen 110 möglichst exakt beidseitig und gleichzeitig erfolgt.On the other hand, to avoid warping of the relatively thin sheet metal material 102 during the solidification irradiation, it is advantageous if the hotspots 128a and 128b of the upper centrifugal wheels 104a and 104b overlap each other as much as possible and the hotspots 128c and 128d of the lower centrifugal wheels 104c and 104d overlap each other as much as possible overlap so that the exposure of the front side 132 and the rear side 134 of the sheet metal material 102 to the solidification jets 110 takes place as exactly as possible on both sides and simultaneously.

Vorzugsweise beträgt der Überlappungsbereich der oberen Hotspots 128a und 128b mindestens 90% der Fläche des Hotspots 128a.The overlap area of the upper hotspots 128a and 128b is preferably at least 90% of the area of the hotspot 128a.

Ferner beträgt der Überlappungsbereich der unteren Hotspots 128c und 128d vorzugsweise mindestens 90% der Fläche des Hotspots 128c.Furthermore, the overlap area of the lower hotspots 128c and 128d is preferably at least 90% of the area of the hotspot 128c.

In Fig. 3 sind die Außenkonturen 130b und 130d der Hotspots 128b beziehungsweise 128d so eingezeichnet, dass sie mit den Außenkonturen 130a beziehungsweise 130c der Hotspots 128a beziehungsweise 128c zusammenfallen, wie es einer idealen Überlappung von 100% zwischen den Hotspots 128a, 128c an der Vorderseite 132 des Metallblechmaterials 102 mit den Hotspots 128b beziehungsweise 128d an der Rückseite 134 des Metallblechmaterials 102 entspricht.In Fig. 3 the outer contours 130b and 130d of the hotspots 128b and 128d, respectively, are drawn in such that they coincide with the outer contours 130a and 130c of the hotspots 128a and 128c, respectively, as there is an ideal overlap of 100% between the hotspots 128a, 128c on the front side 132 of the sheet metal material 102 corresponds to the hotspots 128b and 128d on the rear side 134 of the sheet metal material 102.

Die Beaufschlagung der Vorderseite 132 und der Rückseite 134 des Metallblechmaterials 102 beginnt, sobald eine in der Bewegungsrichtung 126 vorne liegende erste Kante 136 des Metallblechmaterials 102 in den Bereich der Hotspots 128 eintritt und endet, wenn eine in der Bewegungsrichtung 126 des Metallblechmaterials 102 hinten liegende zweite Kante 138 des Metallblechmaterials 102 den Bereich der Hotspots 128 verlässt.The application of the front side 132 and the rear side 134 of the sheet metal material 102 begins as soon as a first edge 136 of the sheet metal material 102 located at the front in the direction of movement 126 enters the area of the hotspots 128 and ends when a second edge located at the rear in the direction of movement 126 of the sheet metal material 102 Edge 138 of sheet metal material 102 leaves the area of hotspots 128.

Bei einer Länge L des Metallblechmaterials 102 von beispielsweise 4.600 mm und einer Vorschubgeschwindigkeit von beispielsweise 1 m/min sowie einer Breite der Hotspots 128 von 10 cm beträgt die Behandlungszeit somit beispielsweise ungefähr 282 Sekunden.With a length L of the sheet metal material 102 of, for example, 4,600 mm and a feed speed of, for example, 1 m / min and a width of the hotspots 128 of 10 cm, the treatment time is thus, for example, approximately 282 seconds.

Der Durchmesser jedes Schleuderrads 104 beträgt beispielsweise ungefähr 380 mm.The diameter of each spinner 104 is, for example, approximately 380 mm.

Jedes Schleuderrad 104 kann eine Turbine mit beispielsweise sechs Schaufeln aufweisen.Each impeller 104 can have a turbine with, for example, six blades.

Jede Schaufel kann beispielsweise eine Schaufelbreite von 55 mm aufweisen.Each blade can, for example, have a blade width of 55 mm.

Die Abwurfgeschwindigkeit, mit welcher die Strahlgut-Teilchen aus dem Schleuderrad 104 ausgeworfen werden, kann beispielsweise ungefähr 88 m/s betragen.The ejection speed at which the blasting material particles are ejected from the centrifugal wheel 104 can be approximately 88 m / s, for example.

Der Strahlgutdurchsatz pro Schleuderrad 104 kann beispielsweise ungefähr 200 kg/min betragen.The throughput of blasting material per centrifugal wheel 104 can be approximately 200 kg / min, for example.

Die Antriebsleistung jedes Schleuderrads 104 kann beispielsweise ungefähr 11 kW betragen.The drive power of each centrifugal wheel 104 can be approximately 11 kW, for example.

Als Strahlgut kann beispielsweise das Edelstahlstrahlmittel verwendet werden, welches unter der Bezeichnung "Chronital" von der Firma VULKAN INOX GmbH Abrasive Technology, Gottwaldstr. 21, 45525 Hattingen, Deutschland, vertrieben wird.The blasting material used can be, for example, the high-grade steel blasting medium, which is available under the name "Chronital" from the company VULKAN INOX GmbH Abrasive Technology, Gottwaldstr. 21, 45525 Hattingen, Germany.

Es handelt sich hierbei um ein kugeliges Edelstahl-Strahlgut mit der folgenden chemischen Zusammensetzung: 18 Gewichtsprozent Cr; 10 Gewichtsprozent Ni; 1,8 Gewichtsprozent Si; 1,2 Gewichtsprozent Mn; 0,17 Gewichtsprozent C; Rest Fe.This is a spherical stainless steel blasting material with the following chemical composition: 18 percent by weight Cr; 10 weight percent Ni; 1.8 weight percent Si; 1.2 weight percent Mn; 0.17 weight percent C; Remainder Fe.

Das Strahlgut weist eine austenitische Mikrostruktur auf.The blasting material has an austenitic microstructure.

Das Schüttgewicht des Strahlguts beträgt beispielsweise ungefähr 4,7 kg/dm3.The bulk weight of the blasting material is approximately 4.7 kg / dm 3 , for example.

Die Oberflächenhärte des Strahlguts beträgt im Anlieferungszustand beispielsweise ungefähr 300 HV und im betriebsfertigen Gemisch beispielsweise ungefähr 450 HV.The surface hardness of the blasting material in the delivery state is, for example, approximately 300 HV and in the ready-to-use mixture, for example, approximately 450 HV.

Das betriebsfertige Gemisch zum Betrieb der Vorrichtung 100 zur Verfestigungsbestrahlung ist beispielsweise wie folgt zusammengesetzt:

  • 50 Gewichtsprozent von Teilchen mit einem Durchmesser von 0,85 mm;
  • 28 Gewichtsprozent von Teilchen mit einem Durchmesser von 0,60 mm;
  • 11 Gewichtsprozent von Teilchen mit einem Durchmesser von 0,425 mm;
  • 8 Gewichtsprozent von Teilchen mit einem Durchmesser von 0,36 mm;
  • 3 Gewichtsprozent von Teilchen mit einem Durchmesser von 0,212 mm.
The ready-to-use mixture for operating the device 100 for solidification irradiation is composed, for example, as follows:
  • 50% by weight of particles with a diameter of 0.85 mm;
  • 28 weight percent of particles 0.60 mm in diameter;
  • 11 percent by weight of particles 0.425 mm in diameter;
  • 8 percent by weight of particles 0.36 mm in diameter;
  • 3% by weight of particles with a diameter of 0.212 mm.

Nach der Durchführung der Verfestigungsbestrahlung an dem Metallblechmaterial 102 mit der Werkstoffnummer 1.4301 und einer Materialstärke von 1,0 mm, einer Breite B von 1.500 mm und einer Länge L von 4.000 mm und mit den vorstehend genannten Verfahrensparametern (insbesondere einer Vorschubgeschwindigkeit von 1 m/min und einem Strahlgutdurchsatz von 200 kg/min an jedem Schleuderrad 104 sowie einer Rotationsgeschwindigkeit von 3.000 U/min) ergab eine Messung der Oberflächenhärte (Vickers-Härtemessung nach DIN EN ISO 6507-1) an 18 Punkten der Oberfläche des Metallblechmaterials 102 einen mittleren Wert der Oberflächenhärte von 334 HV und eine Schwankungsbreite der Oberflächenhärte von 233 HV bis 453 HV.After the solidification irradiation has been carried out on the sheet metal material 102 with the material number 1.4301 and a material thickness of 1.0 mm, a width B of 1,500 mm and a length L of 4,000 mm and with the above-mentioned process parameters (in particular a feed rate of 1 m / min and a blasting material throughput of 200 kg / min at each centrifugal wheel 104 and a rotation speed of 3,000 rpm), a measurement of the surface hardness (Vickers hardness measurement according to DIN EN ISO 6507-1) at 18 points on the surface of the sheet metal material 102 resulted in an average value of Surface hardness of 334 HV and a fluctuation range of surface hardness from 233 HV to 453 HV.

Das auf die vorstehend beschriebene Weise mittels der Vorrichtung 100 zur Verfestigungsbestrahlung oberflächengehärtete Metallblechmaterial 102 kann insbesondere zur Herstellung von Blechzuschnitten für Küchenarbeitsplatten oder zur Herstellung von Faltzuschnitten für gefaltete Spülbecken, insbesondere sogenannte "Null-Radius-Becken", verwendet werden.The sheet metal material 102 surface-hardened in the manner described above by means of the device 100 for solidification irradiation can be used in particular for the production of sheet metal blanks for kitchen worktops or for the production of folding blanks for folded sinks, in particular so-called "zero radius basins".

Das verfestigungsbestrahlte Edelstahlblechmaterial weist eine grau-silbrige Farbe, ähnlich wie Beton oder Stein, und vorzugsweise keinen Gelbstich auf.The peened stainless steel sheet material has a gray-silvery color, similar to concrete or stone, and preferably has no yellow tinge.

Die Oberfläche des verfestigungsbestrahlten Edelstahlblechmaterials wirkt matt und gebraucht.The surface of the peened stainless steel sheet material appears matt and used.

Durch die Oberflächenhärtung ist das verfestigungsbestrahlte Edelstahlblechmaterial kratzunempfindlich.Due to the surface hardening, the peened stainless steel sheet material is scratch-resistant.

Das verfestigungsbestrahlte Edelstahlblechmaterial kann mittels der üblichen Techniken, insbesondere Abkanttechnik, Schweißtechnik und Einschweißtechnik, weiterverarbeitet werden.The peened stainless steel sheet material can be processed further by means of the usual techniques, in particular bending technology, welding technology and welding technology.

Claims (3)

  1. Use of a sheet metal material,
    wherein the sheet metal material (102) comprises a front side (132) surface-hardened by shot peening and a rear side (134) surface-hardened by shot peening, wherein the front side (132) and the rear side (134) of the sheet metal material (102) have been acted on by a respective shot stream (110) simultaneously at least at times,
    wherein the sheet metal material (102) is a stainless steel sheet metal material,
    wherein the sheet metal material (102) has an average final surface hardness of at least about 300 HV after being acted on by the at least one shot stream (110), and
    wherein the sheet metal material (102) has a material thickness of at most about 3 mm,
    for producing a kitchen worktop, a sink, or a basin, or for producing a decorative surface that is used in the field of façade design or interior design.
  2. Use in accordance with Claim 1, wherein the at least one shot stream (110) is produced from a shot peening medium, the particles of which substantially all have a greatest particle diameter in the range of about 0.2 mm to about 1.0 mm.
  3. Sheet metal product, namely a kitchen worktop, a sink, or a basin, comprising a sheet metal material (102),
    wherein the sheet metal material (102) comprises a front side (132) surface-hardened by shot peening and a rear side (134) surface-hardened by shot peening, wherein the front side (132) and the rear side (134) of the sheet metal material (102) have been acted on by a respective shot stream (110) simultaneously at least at times, wherein the sheet metal material (102) is a stainless steel sheet metal material,
    wherein the sheet metal material (102) has an average final surface hardness of at least about 300 HV after being acted on by the at least one shot stream (110), and
    wherein the sheet metal material (102) has a material thickness of at most about 3 mm.
EP14755656.7A 2013-09-02 2014-08-22 Method for hardening sheet metal material and hardened metal sheet material Active EP3041963B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013217431.4A DE102013217431A1 (en) 2013-09-02 2013-09-02 A method of hardening a sheet material and hardened sheet metal material
PCT/EP2014/067924 WO2015028406A1 (en) 2013-09-02 2014-08-22 Method for hardening sheet metal material and hardened metal sheet material

Publications (2)

Publication Number Publication Date
EP3041963A1 EP3041963A1 (en) 2016-07-13
EP3041963B1 true EP3041963B1 (en) 2021-04-21

Family

ID=51399652

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14755656.7A Active EP3041963B1 (en) 2013-09-02 2014-08-22 Method for hardening sheet metal material and hardened metal sheet material

Country Status (5)

Country Link
US (2) US10000822B2 (en)
EP (1) EP3041963B1 (en)
CA (1) CA2922443C (en)
DE (1) DE102013217431A1 (en)
WO (1) WO2015028406A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013217431A1 (en) 2013-09-02 2015-03-05 Blanco Gmbh + Co Kg A method of hardening a sheet material and hardened sheet metal material
EP3327153B1 (en) 2016-11-23 2020-11-11 Outokumpu Oyj Method for manufacturing a complex-formed component
DE102020105046B4 (en) 2020-02-26 2022-02-17 Thyssenkrupp Steel Europe Ag Process for the production of a steel flat product and use of such a steel flat product

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH066266B2 (en) * 1985-05-10 1994-01-26 三菱重工業株式会社 Abrasive material projection area control method
JPH079025B2 (en) * 1988-06-10 1995-02-01 電気興業株式会社 Method for strengthening austenitic stainless steel plate and austenitic heat resistant steel plate
DE4018877A1 (en) * 1990-06-13 1991-12-19 Grimberg Hans Edelstahl Stainless-steel blasting method - uses millimetre-size pellets of high-grade steel or glass
JPH079025A (en) * 1993-06-25 1995-01-13 Nippon Steel Corp Method for preventing occurrence of brush chatter mark on metal plate
DE19952514C1 (en) * 1999-10-30 2001-05-03 Niro Plan Ag Zug Domestic kitchen washing or cooking basin is of fine steel with a structured surface of indentations to prevent scratching formed by jets of glass beads in a cold shaping action
JP2003211360A (en) * 2002-01-15 2003-07-29 Sintokogio Ltd Method and device for surface treatment of steel
JPWO2003086708A1 (en) * 2002-04-16 2005-08-18 Ｊｆｅスチール株式会社 Metal plate surface treatment equipment, metal plate manufacturing method and metal plate manufacturing apparatus
JP2006249559A (en) * 2005-03-14 2006-09-21 Nisshin Steel Co Ltd Surface supporting plate made from stainless steel
US7601226B2 (en) * 2006-09-14 2009-10-13 The Material Works, Ltd. Slurry blasting apparatus for removing scale from sheet metal
SG157979A1 (en) * 2008-06-24 2010-01-29 Panasonic Refrigeration Device Method and system for processing a sheet of material
FR2970006B1 (en) 2010-12-30 2013-07-05 Wheelabrator Allevard SURFACE TREATMENT OF A METAL PIECE
DE102013217431A1 (en) 2013-09-02 2015-03-05 Blanco Gmbh + Co Kg A method of hardening a sheet material and hardened sheet metal material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3041963A1 (en) 2016-07-13
US10000822B2 (en) 2018-06-19
CA2922443C (en) 2021-05-11
US20180237873A1 (en) 2018-08-23
US20160177409A1 (en) 2016-06-23
CA2922443A1 (en) 2015-03-05
US10837070B2 (en) 2020-11-17
WO2015028406A1 (en) 2015-03-05
DE102013217431A1 (en) 2015-03-05

Similar Documents

Publication Publication Date Title
EP2093021B1 (en) Method and apparatus for controlled shot-peening of blisk blades
EP3041963B1 (en) Method for hardening sheet metal material and hardened metal sheet material
EP3013513B1 (en) Screen bar, bar screen and method for producing a screen bar
DE102008014726A1 (en) Method of shot blasting of integrally bladed rotors
AT519308A1 (en) Conveying and processing roller for a harvester
DE102005025627B3 (en) Production of sawtooth wire clothing for textile carding comprises cutting saw teeth in wire and hardening it by heating in protective atmosphere to austenite-forming temperature and rapidly cooling it, wire then being annealed
WO2017144217A1 (en) Heat treatment method and heat treatment device
DE2438450A1 (en) METHOD AND DEVICE FOR BLAST CLEANING
EP2099585B1 (en) Device and method for the surface peening of a component of a gas turbine
DE4328961C2 (en) Process for the production of paper knives
DE19818566A1 (en) Tire stripping on rotary stand using high pressure water jets optionally carrying abrasive
EP1842617A1 (en) Process and device for partial hardening of metal sheets or semi finished products using a laser beam and protective gas having solid particles; Metal sheet or semi finished product made of steel with a partial hardening
WO2019034284A1 (en) Method and device for compacting by blasting or rolling
DE102010043285A1 (en) Method, blasting medium and apparatus for treating a component
DE102011055104B4 (en) Method for solidifying blasting of metal components and blasting machine for carrying out the method
EP3431656B1 (en) Method for the treatment of ballast
EP3426808B1 (en) Application of thermally treated flat steel product
DE2419382C3 (en) Process for separating parts from cold-rolled steel strip
DE1933781A1 (en) Method and device for the partial remediation of steel railway wheels or the like.
DE650539C (en) Device for processing surfaces
DE2019387A1 (en) Process for the production of engravings and bas-reliefs on objects made of hard or solid material
WO2016066159A4 (en) Apparatus and method for reducing the size of fiber composite materials
DE71980C (en) Manufacture of iron armor plates that are hard on one side by cementation
DD247924A1 (en) METHOD FOR TREATING COATED OBJECTS
CH249685A (en) Method and device for shot peening metal objects.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20160302

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20180601

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20201209

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502014015506

Country of ref document: DE

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1384712

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210515

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20210421

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210823

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210722

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210821

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502014015506

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20220124

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210821

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210822

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210822

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210831

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1384712

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210822

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210822

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20140822

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210421

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240826

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20240701

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240702

Year of fee payment: 11