• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention provides a method of treating a metallic article to give it non-slip properties, characterized in that it comprises the following steps: preparation of the surface to be treated of the article by shot-blasting to remove any surface from the surface. fouling and / or oxidation film, - before any significant re-oxidation of the surface treated by shot peening, application of a primer bonding layer based on hardenable resin, with a thickness of between approximately 100 and approximately 300 μm, - application in one or more passes of a main layer based on a curable resin with a total thickness of between approximately 400 and approximately 1000 μm, - application in refusal of sharp-edged particles of an average size between about 0.5mm and 2.0mm. - elimination of excess particles. Application in particular to road plates made of an oxidizable alloy.
    公开号:BE1022194B1
    申请号:E2014/0497
    申请日:2014-06-27
    公开日:2016-02-26
    发明作者:Marine Amiel；Christian Riou
    申请人:Image Up S.À.R.L.；
    IPC主号:
    专利说明:

    Process for treating a metallic article, in particular a roadway plate, and a plate produced according to the method
    Field of the invention
    The present invention generally relates to methods of surface treatment of metal articles to make them slip-resistant.
    Background of the invention
    There are in the state of the art a number of methods to make non-slip surfaces.
    Typically, one or more layers of a curable resin paint having suitable physicochemical properties are applied to a support, and a granular or powdery material is sprayed onto the uncured surface of the paint, the remainder being removed after curing.
    Document FR2688524A1 gives an example of such a coating.
    However, a particular difficulty arises during the movement of vehicles and pedestrians on metal plates used in road construction sites or otherwise. These plates, typically steel plates 10 to 20 mm thick depending on the application, become dirty as they are used, and become very slippery, both for pedestrians and vehicles especially in case of rain or gel. This creates particularly dangerous situations especially for motorcycles, the mixture of water and various deposits that have accumulated on a plate (oily residue, mud, earth, etc.) giving the plate an extremely slippery character.
    This can also be the case in case of frost, a metal plate may, more quickly than a roadway, see its temperature drop below 0 ° C and cause the freezing of any film containing water existing thereon .
    A particular difficulty in this type of application is that it is extremely difficult to obtain both a good grip of a non-slip coating on a metal such as steel (especially to withstand the passage of large gear on road construction sites), particularly in the case of pavement plates already used and to be paved for renovation, and good anti-slip properties of the pavement when pedestrians or light vehicles, especially two-wheelers, are used.
    Thus, a steel plate that has already been used in road construction has undergone complex phenomena of fouling, polishing by circulation, and oxidation, and it proves difficult to ensure good adhesion of a anti-slip coating on such a plate.
    Moreover, the anti-skid nature of known coatings, for example of the type receiving a granular material such as sand, is sometimes insufficient for road applications, especially when fouling of the plate under the influence of the environment. and bad weather has occurred. Summary of the invention
    The present invention aims to overcome all or part of the aforementioned drawbacks.
    For this purpose, according to a first aspect, a method for treating a metal article, in particular an oxidizable alloy floor plate, to give it anti-slip properties, characterized in that it comprises the following steps: of the surface to be treated of the article by shot peening to remove from the surface any film of fouling and / or oxidation, - before any significant re-oxidation of the treated surface by shot blasting, application of a primary layer of curable resin bonding having a thickness of from about 100 to about 300 microns; - application in one or more passes of a curable resin base coat having a total thickness of about 400 to about 1000 microns; - application to rejection of sharp-edged particles with an average size of between about 0.5 mm and 2.0 mm. - removal of surplus particles.
    Some preferred but non-limiting aspects of this method are as follows, taken in any technically compatible combination: the shot blasting step is carried out with steel balls having a diameter of between 0.5 and 1.5 mm. the primary layer consists of a two-component resin with a thickness of between approximately 150 and 200 μm. the main layer consists of a two-component resin with a thickness of between approximately 600 and 800 μm. * the particles are made of corundum. the particles have an average size of between 0.5 and 2 mm, preferably between 0.8 and 1.4 mm. the method comprises a subsequent step of applying a blocking layer based on a hardness at least equal to that of the main layer. * The thickness of the blocking layer is between about 1 and 2 mm, more preferably between 1.2 and 1.5 mm.
    According to a second aspect, there is provided a roadway plate, in particular for road works, comprising: a steel base of a specific thickness to receive a determined traffic, a gripping layer in contact with a surface of the steel base, a main layer above the attachment layer, and sharp-edged particles, at least a part of which is partially embedded in the main layer.
    Preferred aspects of this plate are in particular those expressed above in connection with the process.
    It also proposes a metal road plate, in particular intended to receive a treatment according to the method as defined above, and comprising at least one arrangement for hooking a hook of a lifting machine, characterized in that the or each arrangement comprises a pair of openings delimiting between them a hooking bar extending throughout the thickness of the plate, adapted to cooperate with a respective hook.
    Advantageously but non-limitatively, the plate comprising a pair of hooking arrangements located on a line passing through the center of gravity of the plate and extending in a central region of the plate clean to overhang a vacuum when setting place of the plate.
    BRIEF DESCRIPTION OF THE DRAWINGS Other aspects, objects and advantages of the present invention will become more apparent upon reading the following detailed description of a preferred embodiment thereof, given by way of non-limiting example and with reference in the attached drawings, of which:
    FIG. 1 is a sectional view of a steel plate structure provided with an antiskid coating according to the invention,
    FIG. 2 is a perspective view of a roadway plate provided with attachment means according to another aspect of the invention, and
    FIG. 3 is an enlarged perspective view of one of the hooking means of the plate of FIG. 2.
    Detailed Description of a Preferred Embodiment
    Referring to Figure 1 first, it is intended according to the invention to equip a generally flat metal article, here a floor plate 10 for temporary use in roadwork, a non-slip coating.
    The pavement plate is typically 10 to 40 mm thick depending on the use (pedestrian heavy machinery), and is made of steel of appropriate quality.
    Such a plate may have already been used. In this case, its surface has undergone various degradations: oxidation, fouling, various deposits (hydrocarbons, various urban pollutants, in combination with surface friction related to the circulation on these plates.
    To ensure excellent adhesion of a non-slip coating to the plate, it is subjected to a shot peening treatment.
    Preferably, this treatment is carried out with a shot blasting machine, with steel balls having a diameter of the order of 0.5 to 1.5 mm.
    The duration of the treatment depends on the degree of fouling of the plate. The treatment can be automatic or manual, in one or more passes, by adjusting the speed of passage of the blast machine. Typically, blasting of a given zone will be carried out for a period of between 5 and 30 seconds depending on the degree of fouling.
    The treatment will be particularly light on new pavement plates, the objective then being essentially to eliminate surface oxidation and to structure the plate superficially to ensure a good grip as will be seen later.
    Advantageously, during the treatment of series of pavement plates, they are arranged side-by-side so as to be generally coplanar, so that shot blasting can be carried out at one time for all of the plates.
    Rapidly after the blasting step, a primary primer layer 11 is applied. Preferably, this operation is carried out immediately after the blasting step, and in any case not more than a few hours after shot blasting step. This prevents the cleaned surface of the steel from re-oxidizing or fouling by particles contained in the ambient air, and to ensure a good grip.
    This primary layer is preferably made with a two-component resin paint, preferably an epoxy resin, with an amount of material to form a primary layer with a thickness in the range of 150 to 200 μm.
    After curing of this primary layer, a main layer or structure layer 12 is applied in one or more times, which is also preferably a two-component resin-based paint, more particularly an epoxy resin.
    In a preferred form, this layer is made in one pass, with a quantity of material capable of forming a main layer with a thickness of the order of 600 to 800 μιτι.
    Before hardening of this layer (the setting time may be variable depending on the ambient conditions and the amount of hardener), particles 13 are projected onto the uncured surface of this layer in order to give the coating an anti-slip nature.
    In an advantageous embodiment, these particles are nonspherical corundum particles, preferably with sharp edges, with an average size of between 0.5 and 2 mm, more preferably between 0.8 and 1.4 mm.
    These particles are dispersed on the non-hardened main paint layer, so as to partially embed themselves in the layer in question.
    After hardening of the main layer, the surplus is removed, preferably by sweeping, and may optionally be re-used.
    A final optional step is to apply on the assembly thus formed a blocking layer 14, intended to cover the unobstructed portion of the particles.
    Advantageously, again using a two-component resin-based paint, again preferably an epoxy resin with a hardness greater than that of the main layer and the primary layer.
    Preferably, this blocking layer is applied with a quantity of material capable of forming a blocking layer with an average thickness of about 1 and 2 mm, more preferably between 1.2 and 1.5 mm.
    This series of steps provides a coating on steel with exceptional non-slip qualities, as well as excellent resistance to traffic. Thus the risks of falling motorcycles or pedestrians, or slippage of four-wheeled vehicles, are minimized even in heavy fouling conditions.
    At the same time, the tear resistance of the coating during the traffic of large construction machinery is excellent.
    Referring now to Figures 2 and 3, there is shown, in general and in detail, a roadway plate 10 having improved means for handling it, according to another aspect of the invention. As a preamble, the large size and large site plates are usually too heavy to be handled by humans, and the use of mobile cranes is then necessary.
    Conventionally, the plates are therefore equipped with projecting rings in which hooks of a hoist can be hung, these rings being appropriately sized steel rings welded to the plate.
    The difficulty of this approach is that these salient rings are a danger to the traffic of both pedestrians and vehicles.
    According to this aspect of the invention, and with reference to Figures 2 and 3, the floor plate 1 has no projecting ring, but two arrangements of attachment openings, generally designated 20a and 20b, are formed in two areas spaced from the plate, preferably on a center line of the plate, or in any case a line passing through its center of gravity.
    More preferably still, because a roadway plate is typically supported by its edges on the ground, and is intended to cover a void in the roadway, a sidewalk, etc., it is preferable to arrange these arrangements. 'hooking openings rather towards the center of the plate than near its edges.
    As illustrated, each hooking aperture arrangement comprises a pair of generally semicircular apertures defining between them a middle bar.
    Thus Figure 3 shows on an enlarged scale the arrangement 20a having two openings 22a, 23a delimiting a fastening bar 21a of constant width, which can be taken by a hoist hook through the openings.
    The width and length of the bar are chosen according to the weight and thickness of the plate, so as to offer the appropriate mechanical properties. Typically, for ranges of common plates, the width of the bar is between 10 and 30 mm, and its length is between 2 and 3 times its width.
    These openings are made in the plate by a usual technique of metal cutting, for example by punching for thin plates, or by cutting with pressurized water, laser or plasma for thicker plates.
    This configuration of the attachment means allows handling of the plates as easy as lifting hooks, while avoiding having on the top of the plate of the potentially dangerous salient elements.
    Such fastening arrangements according to the invention can be used on bare steel plates (without anti-slip coating), or on steel plates with a non-slip coating as described above, or on steel plates provided with all other type of coating. In this regard, another advantage of these attachment means is that the various steps used to form a coating (cleaning, stripping, shot blasting, application of paint layers, etc.) can be performed more easily and quickly , and if necessary automated, because no element comes to project above the plane of the upper surface of the plate.
    Of course, the present invention is not limited to the embodiments described and illustrated, but the skilled person will be able to make many variations or modifications.
    权利要求:
    Claims (11)
    [1]
    claims
    1. A method of treating a metal article, in particular an oxidizable alloy road plate, to give it anti-slip properties, characterized in that it comprises the following steps: - preparation of the surface to be treated of the article by shot peening to remove from the surface any film of fouling and / or oxidation, - before any significant re-oxidation of the surface treated by shot blasting, application of a curable resin-based primer coat, thickness ranging from about 100 to about 300 μm; application in one or more passes of a curable resin base coat having a total thickness of about 400 to about 1000 μm; of average size between about 0.5 mm and 2.0 mm. - removal of surplus particles.
    [2]
    2. Method according to claim 1, wherein the grit blasting step is carried out with steel balls having a diameter of between 0.5 and 1.5 mm.
    [3]
    3. Method according to one of claims 1 and 2, wherein the primer layer consists of a two-component resin with a thickness between about 150 and 200 pm.
    [4]
    4. Method according to one of claims 1 to 3, wherein the main layer is constituted by a two-component resin with a thickness between about 600 and 800 pm.
    [5]
    5. Method according to one of claims 1 to 4, wherein the particles are made of corundum.
    [6]
    6. The method of claim 6, wherein the particles have an average size of between 0.5 and 2 mm, preferably between 0.8 and 1.4 mm.
    [7]
    7. Method according to one of claims 1 to 6, comprising a subsequent step of applying a blocking layer based on a hardness at least equal to that of the main layer.
    [8]
    8. The method of claim 7, wherein the thickness of the blocking layer is between about 1 and 2 mm, more preferably between 1.2 and 1.5 mm.
    [9]
    9. Road plate, in particular for road works, comprising: - a steel base (10) of a specific thickness to receive a determined traffic, - a fastening layer (11) in contact with a surface of the steel base, - a main layer (12) above the attachment layer, and - sharp-edge particles (13), at least a portion of which is partially embedded in the main layer.
    [10]
    10. Metal floor plate (10), in particular intended to receive a treatment according to the method of one of claims 1 to 8, and comprising at least one arrangement for hooking a hook of a hoist, characterized in that the or each arrangement (20a, 20b) comprises a pair of openings (22a, 23a) delimiting between them a hooking bar (21a) extending throughout the thickness of the plate, adapted to cooperate with a respective hook.
    [11]
    Plate according to claim 8, comprising a pair of hooking arrangements located on a line passing through the center of gravity of the plate and extending in a central region of the plate clean to overhang a void when placing in place of the plate.
    类似技术:
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    同族专利:
    公开号 | 公开日
    FR3007687A1|2015-01-02|
    LU92234B1|2014-12-29|
    CH708263A2|2014-12-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR1223042A|1959-04-29|1960-06-14|Reliance Steel Prod Co|Grids forming traffic decks|
    US5763070A|1996-01-18|1998-06-09|Safeguard Technology, Inc.|Article having moisture-resistant safety surface and method of preparation|
    DE19610390C1|1996-03-16|1997-11-20|Kvs Korrosions Und Verschleiss|Method of coating vehicle floor, especially buses, train carriages, aeroplanes floor with elastomer|CN105256694B|2015-11-04|2017-08-25|湖南致同工程科技有限公司|Conductive antiskid wearing layer in a kind of road surface and preparation method thereof|
    法律状态:
    2018-08-29| PD| Change of ownership|Owner name: L.T. (LOCATION TRANSPORT) S.A.S.; FR Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CESSION; FORMER OWNER NAME: IMAGE UP S.A.R.L. Effective date: 20180618 |
    2018-08-29| FG| Patent granted|Effective date: 20160226 |
    2020-03-27| MM| Lapsed because of non-payment of the annual fee|Effective date: 20190630 |
    优先权:
    申请号 | 申请日 | 专利标题
    LU92234|2013-06-27|
    LU92234A|LU92234B1|2013-06-27|2013-06-27|Process for treating a metallic article, in particular a pavement plate, and plate produced according to the process|
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