WO2014033479A1 - Procédé et appareil destinés à une gaine continue - Google Patents

Procédé et appareil destinés à une gaine continue Download PDF

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Publication number
WO2014033479A1
WO2014033479A1 PCT/GB2013/052299 GB2013052299W WO2014033479A1 WO 2014033479 A1 WO2014033479 A1 WO 2014033479A1 GB 2013052299 W GB2013052299 W GB 2013052299W WO 2014033479 A1 WO2014033479 A1 WO 2014033479A1
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WO
WIPO (PCT)
Prior art keywords
substrate
process zone
mould
zone
input
Prior art date
Application number
PCT/GB2013/052299
Other languages
English (en)
Inventor
Dorival Tecco
Original Assignee
Welding Alloys Limited
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 Welding Alloys Limited filed Critical Welding Alloys Limited
Publication of WO2014033479A1 publication Critical patent/WO2014033479A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/04—Welding for other purposes than joining, e.g. built-up welding
    • B23K9/042—Built-up welding on planar surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K25/00—Slag welding, i.e. using a heated layer or mass of powder, slag, or the like in contact with the material to be joined
    • B23K25/005—Welding for purposes other than joining, e.g. built-up welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/095—Monitoring or automatic control of welding parameters
    • B23K9/0956—Monitoring or automatic control of welding parameters using sensing means, e.g. optical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/16—Bands or sheets of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/18—Sheet panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys
    • B23K2103/05—Stainless steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/12—Copper or alloys thereof

Definitions

  • the present invention relates to an apparatus and method for cladding and hardfacing and specifically, but not exclusively for the cladding and hardfacing of of flat products, and for cladding, hardfacing of products with polygonal or rounded cross sections.
  • the present invention relates to metallic components and use of electroslag welding, as well as welding processes that operate under inert or active gas atmospheres (examples of which are electro-gas welding, metal-inert gas welding and tungsten inert gas welding), without the problems of entrapment or contamination of inadequate slags, continuous casting methods or other methods involving continuous pouring of liquid metal.
  • inert or active gas atmospheres examples of which are electro-gas welding, metal-inert gas welding and tungsten inert gas welding
  • components and consumable products are manufactured for use in harsh and demanding working environments where resistance to abrasion, adhesion, erosion, cavitation, oxidation and/or corrosion is important and which comprise a metallic base or substrate that is welded on one or more of its surfaces.
  • a substrate may be a steel, low-alloy ferrous material, iron or high-alloy ferrous material, cobalt-based alloy, nickel-based alloy or a copper- based alloy.
  • the manufacturing method may vary according to the product shape.
  • a common method involves the deposition of beads to achieve complete or partial coverage of one or two surfaces, such as described in (Browne et al, 1994) and (Rossner et al, 1965). In these cases, individual beads are laid along the length of the plate, until coverage is complete.
  • a variation of this method is shown in (Miller, 1985), in which individual beads are deposited on a plate surface along its width, until the required coverage is achieved.
  • these methods are discontinuous because they need to be interrupted every time the welding gun reaches the edge of the plate, before it is re-positioned for the next bead; this limits the duty cycle, and reduces productivity.
  • a further complication arises from the fact that the overlap region between two beads is a point of weakness as it is a preferential site for weld defects, and also a source of surface waviness/roughness.
  • a third variation of the manufacturing methods is described in (Paton et al, 1975), by attaching a mould to the edge of a plate-like product and laying a volume of hardfacing material with an electroslag welding process. In this way, a high quality, single deposit is produced, without the weak intersections between beads and with potential to produce improved surface roughness.
  • the method is unsuitable for continuous production as it requires re-positioning the mould for each new plate or product.
  • Another example is the demand by steel industry for continuous casting rolls with a total clad layer with 6mm thickness or less. It is an object of the present invention to provide an apparatus and method for cladding and hardfacing products which addresses the abovementioned disadvantages of conventional apparatuses and methods.
  • a method for cladding a substrate using a process zone comprising:
  • a single molten line that extends the full width of plates or the full perimeter of polygonal or round cross-sections, thus eliminating weak ties between multiple weld beads;
  • tubular welding wires which can be produced in smaller quantities than solid wires and can be helpful in improving homogeneity over a wide range of compositions
  • the at least one property includes temperature.
  • the method further comprising: monitoring the temperature of the process zone, in an area in proximity to the process zone and/or the substrate.
  • the method further comprising: controlling the temperature of the process zone, the area in proximity to the process zone and/or the substrate in response to the monitored temperature.
  • the process zone is provided in a mould.
  • the method comprising: moving the mould relative to the substrate.
  • the method comprising: moving the substrate relative to the mould.
  • the method further comprising: generating at least one localised zone of molten material within the process zone, whereby a portion of the molten material within the at least one localised zone is deposited on the substrate.
  • the method comprising: providing the substrate to the input from a roll.
  • the method comprising: providing the substrate to the input discrete planar portions.
  • the method comprising: cutting the substrate using a cutting means provided between the process zone and the output or after the output.
  • the invention provides an apparatus for cladding a substrate, the apparatus comprising:
  • a mould comprising a process zone having controllable properties, wherein, in use, the substrate passes in proximity to the process zone and is clad with a material of the process zone.
  • a stable process that is able to operate continuously, in case a substrate is fed continuously;
  • a plurality of tubular wires traverse the length and/or width of the mould and/or process zone.
  • this provides the ability to employ tubular welding wires, which can be produced in smaller quantities than solid wires and can be helpful in improving homogeneity over a wide range of compositions.
  • the apparatus for cladding a substrate comprising: a substrate input; a substrate output; means configured to direct the substrate from the input to the output; and a process zone located between the input and the output, wherein the process zone is operable to deposit a liquid material therein on the substrate in a substantially uniform manner across a portion of the surface of the substrate moving relative thereto.
  • the apparatus further comprising a temperature monitoring means operable to monitor the temperature of the process zone, an area in proximity to the process zone and/or the substrate.
  • a cooling means operable to control the temperature of the process zone, the area in proximity to the process zone and/or the substrate in response to the monitored temperature.
  • the process zone is moveable relative to the substrate.
  • the substrate is moveable relative to the process zone.
  • the process zone is provided in a mould.
  • the process zone comprises at least one heat generation means associated therewith, operable to create a localised zone of molten material within the process zone for deposition of the molten material within the localised zone on the substrate passing in proximity to the process zone.
  • the apparatus further comprising monitoring means to monitor a position of the substrate, the process zone, a feed rate of the substrate to the input and/or a speed of the substrate passing from the input to the output.
  • the apparatus further comprising means for adjusting the position of the substrate, the process zone, the feed rate of the substrate to the input and/or the speed of the substrate passing from the input to the output in response to the monitoring means.
  • a process mould for continuous cladding of a substrate comprising: a mould, operable to retain molten material therein; a process zone, operable to transfer the molten material from the process zone onto the substrate moving relative thereto.
  • the process mould comprising at least one heat generation means operable to generate a localised area of molten material within a portion of the process zone.
  • the heat generation means are moveable within the process zone.
  • the heat generation means comprise welding electrodes.
  • the process mould comprises means to receive molten material.
  • the process zone is configured to contact the surface of the substrate passing in proximity thereto.
  • the process mould having a process zone having a substantially polygonal cross section.
  • the process mould having a process zone having a substantially planar cross section.
  • the process mould having a process zone having a substantially cylindrical cross section.
  • a hardfaced plate fabricated using the above apparatus.
  • a hardfaced plate fabricated using the above process mould is provided.
  • Figure 1 shows a schematic diagram of an apparatus for the continuous production of hardfaced plate using a coiled base plate as a substrate, a mould and a process zone;
  • Figure 2 shows a schematic diagram of an apparatus for the continuous production of hardfaced plate using cut plates as substrate
  • Figure 3 shows a top view of the process zone of the apparatus of Figure 1 showing multiple welding oscillating electrodes for the continuous cladding of a plate
  • Figure 4a shows a side view of an apparatus for the continuous cladding of a polygonal or cylindrical substrate having a moving mould and a fixed process zone;
  • Figure 4b shows a side view of an apparatus for the continuous cladding of a polygonal or cylindrical substrate having a fixed mould and a moving process zone;
  • Figure 5a shows a top view of the mould and process zone of Figures 4a or 4b showing multiple welding oscillating welding electrodes for the continuous cladding of a polygonal;
  • Figure 5b shows a top view of the mould and process zone of Figures 4a or 4b showing multiple welding oscillating welding electrodes for the continuous cladding of a cylindrical substrate.
  • a volume of liquid metal can be generated using one or more suitable heat sources and can be sustained indefinitely as long as the heat source is active.
  • a process zone can be defined as a region that contains liquid metal.
  • liquid metals include cobalt-based alloys (such as stellite), nickel-based alloys, Manganese Alloys, chromium carbide alloys and NOREM, tungsten-based alloys, titanium-based alloys, or stainless steels.
  • Other corrosion resistant materials such as gold, platinum, CoCr alloys, glass, paints or polymers or any suitable material may also be used. It will be appreciated that a temperature of a hot process zone is dependent on the specific material used and/or the desired properties of the cladded plate.
  • Such a process zone may be contained within a mould, i.e. a structure capable of containing liquid metal therewithin, whereby the mould is formed of suitable material for holding molten material, for example ceramic or a metal material having a higher melting point than the liquid metal within the process zone.
  • Heating is produced locally in the process zone of a mould by using conventional welding-related methods, or can be produced away from the process zone, in case of direct pouring of liquid metal.
  • Examples of local heat generation are electro-slag welding, electrogas welding, metal-inert gas welding and tungsten inert gas welding, which may use tubular or solid wires and that are not prone to slag entrapment, cold laps and other deleterious problems.
  • Examples of distant heat generation are melting of metals in one or multiple crucibles, with concomitant or periodic pouring into the process zone. In order to remain stable, heat must be removed through adequate cooling systems; this comprises cooling of the mould and of the substrate or component when possible.
  • the condition for stability is the achievement of a quasi- stationary state such that the feed rate of the substrate (or removal rate) is precisely controlled to match the melting rate of filler, that the liquid metal is adequately maintained within the process zone and that there is a precise controlled balance between heat generation and heat removal.
  • the process zone takes the shape of a line that extends from edge to edge of an un-clad substrate plate.
  • the cladding process is stable and continuous when the speed of the plate being fed is proportional to, and consistent with the feed rate of molten metal, provided that the molten metal is properly maintained in the mould.
  • FIG. 1 shows a schematic diagram of an apparatus 1 for the continuous production of a hardfaced plate using a substrate 2 in a stored form e.g. coiled base plate, whereby the substrate 2 is directed through a mould 4, a cooling system 5, and a process zone 6 to an output zone 8 and/or cutting zone 9 using a plurality of suitable guidance means e.g. rolls.
  • the rolls may comprise any combination of alignment rolls 10, deflector rolls 12 and or straightening rolls 14 as appropriate with regards to consideration as to space, cost and/or specific application, as will be appreciated by the skilled person.
  • the cooling system 5 is used to control the temperature of the area and devices surrounding the cooling system 5, e.g. the substrate 2, the mould 4 and/or the process zone 6.
  • the cooling system 5 comprises a coolant inlet 3a and/or outlet means 3b for circulating coolant around the system using a coolant distributor (not shown) e.g. internal motor/pump as required, thereby cooling the exterior of the cooling system, or whereby a fan can distribute cold air from within the cooling system 5 to outside the cooling system 5 to cool e.g. the substrate 2, mould 4 and/or process zone 6.
  • the cooling system 5 may not use coolant but may in fact use an electrical cooling means e.g. Peltier plate, fan etc.
  • the substrate in coil format provides for lower production costs.
  • the cooling system 5 may also be communicable and controllable by a system computer (not shown) and may comprise a suitable computer controlled temperature monitoring means (not shown) to ensure that the temperature of the substrate 21 mould 4 and/or process zone 6 are as required to obtain the desired qualities of the deposited material, and controlling the temperature of the elements as necessary.
  • a laser temperature monitoring system in communication with an external computer to monitor the temperature of the substrate 2 as it is fed into and through the mould 4/process zone 6, or to monitor the temperature of the mould 4 and or process zone independently of the substrate, and to subsequently control the cooling system to obtain a desired temperature may be used.
  • the mould 4 may also comprise an internal or external cooling system associated therewith, separate from and working independent from or in conjunction with, or formed integral to the cooling system 5 described previously, which can monitor and control the temperature of the mould 4 the process zone 6 and/or the substrate 2 using a suitable cooling method e.g a coolant circulating system/fan/Peltier device.
  • the cooling system of the mould 4 may also be communicable with and controllable by the system computer and/or the cooling system 5.
  • the positioning of the mould 4 and the cooling system 5 are all adjustable both in the horizontal/vertical direction so that the position of each can be adjusted relative to the substrate 2.
  • the position of the mould 4 and the cooling system 5 may also be controlled by the system computer as necessary.
  • the coiled substrate 2 is positioned into an adequate coil holder 16 that also acts as a controlled dispenser.
  • the coil holder 16 may be computer controlled e.g. by a system computer (not shown) to feed the substrate 2 at a rate desired by a user or determined by the apparatus 1 .
  • a monitoring device 18 e.g. laser, camera etc communicable with the system computer (not shown) may monitor the speed, angle and direction of the substrate 2 being fed from the coil holder 16, whereby the feed rate of the substrate 2 can be controlled by the system computer as necessary.
  • the substrate 2 can be mild steel, stainless steel, low-alloy ferrous material, iron or high-alloy ferrous material, cobalt-based alloy, nickel-based alloy or a copper- based alloy or any other suitable material as will be appreciated by a person skilled in the art.
  • the substrate is aligned, re-directed and straightened with help of adequate means; in the example given this is achieved respectively with alignment rolls 10, deflector rolls 12 and straightening rolls 14.
  • the substrate 2 is fed through the alignment rolls 10, deflector rolls 12, (and straightening rolls 14 if required for a particular application) and into the mould 4.
  • the cladding process begins whereby one face of the substrate 2 is clad at the process zone 6 to form a plate 13 having a base plate side 15 substantially devoid of any cladding material thereon and a hardfaced side 17 having a substantially continuous cladding layer applied thereon.
  • the plate 13 is then re-directed and straightened and the process runs continuously or as required to produce batches and can be cut to a size desired by a user using a suitable cutting means 19.
  • suitable monitoring means 18 e.g. camera, laser etc.
  • suitable monitoring means 18 can be used to monitor the position, quality, speed, feed rate etc of the substrate 2 at any moment in time, such that cladding of the substrate can begin or be stopped when required by a user or determined by the system computer or otherwise.
  • FIG. 1 shows a schematic diagram of an apparatus 1 1 for the continuous production of hardfaced plate using cut plates as the substrate 22. It will be seen that the apparatus 1 1 is configurationally similar to the apparatus 1 described above in Figure 1 and like numbering will be used throughout to describe similar features therein. The functionality of the features described in the apparatus 1 of Figure 1 also applies to the like numbered features of the apparatus 1 1 in Figure 2.
  • the substrate 22 used in Figure 2 is a substantially planar base plate (as opposed to being fed from a coiled roll), and therefore, the configurational arrangement of the guidance means (e.g. the rolls 10, 12 & 14) in Figure 2 differs from that of Figure 1 .
  • the cladding process can begin.
  • the clad substrate 22 is re-directed and straightened using a combination of rollers e.g. 10, 12 and/or 14 and the process runs continuously or as required to produce batches.
  • the cladding process within the process zone 6 may join the individual plates together, which can then be cut to the required dimensions in the cutting zone 9 by cutting means 19 after which the cladded plate can proceed to the output zone 8.
  • Figure 3 shows a top view of the process zone 6 of the apparatus 1 of Figure 1 showing multiple welding oscillating electrodes for the continuous cladding of a plate
  • Figure 4a shows a side view of an apparatus for the continuous cladding of a polygonal or cylindrical substrate having a moving mould and a fixed process zone
  • Figure 4b shows a side view of an apparatus for the continuous cladding of a polygonal or cylindrical substrate having a fixed mould and a moving process zone
  • Figure 5a shows a top view of the mould and process zone of Figures 4a or 4b showing multiple welding oscillating welding electrodes for the continuous cladding of a polygonal
  • Figure 5b shows a top view of the mould and process zone of Figures 4a or 4b showing multiple welding oscillating welding electrodes for the continuous cladding of a cylindrical substrate.
  • the process zone 6 comprises hot and/or liquid material e.g. molten metal which is stably confined between the mould 4 and the moving substrate 2 or 22.
  • the heat is generated by means of electric arc, resistance heating or any other suitable means.
  • six welding wires (not shown) are individually energized such that they each develop an individual electric arc, thereby producing a local molten zone 20a - 20f.
  • Suitable protection against contamination is provided through an inert gas, welding flux or other appropriate means.
  • Full width coverage of a substrate can also be achieved by using a sufficient number of melting pots or ladles that continuously dispense molten metal in the process zone using an adequate device such as a tundish, which is continuously filled with ready molten metal.
  • the continuous feeding of the ladles can be achieved in turn via separate welding processes, using electroslag, electrogas or un-shielded open arc, or by ladle filling. Therefore, a sustainable supply of molten cladding metal is obtained to allow continuous running of the operation.
  • Figures 4a and 4b when cladding an elongated component 24 with a shaped cross section e.g.
  • the mould 4 containing the process zone 6 therewithin extends around the perimeter of the shaped component 24 as the component 24 passes through the mould 4. If the elongated axis of the component is placed vertically, either the component 24 can be fed through a fixed mould 4 ( Figure 4b), or a moving mould 4 can be moved up with the component fixed ( Figure 4a), or it will be seen that both the mould 4 and component may be moving either in the same direction or in opposite directions relative to each other.
  • the process is stable and continuous when the speed of vertical movement is proportional to, and consistent with the feed rate of molten metal, provided that the molten metal is properly contained within the mould 4.
  • the mould 4 will also comprise a suitable cooling means e.g as described above in Figure 1 e.g. by circulating coolant via the coolant input 3a and coolant output 3b.
  • the shape of the mould 4 and the process zone 6 can be formed to suit the specific shape of a component to be clad.
  • the substrates are polygonal and cylindrical in shape respectively, whilst the mould 4 and the process zone 6 are shaped to accommodate and clad the different shapes of the components of Figures 5a and 5b respectively.
  • a mould 4 and/or process zone 6 may comprise a plurality of tubular wires evenly distributed within the mould 4/process zone 6, which oscillate along the perimeter width of a required substrate shape as indicated by the local molten zones 28a - 28f and 30a - 30f in Figures 5a and 5b respectively to achieve the required coverage of a specific shaped component using electroslag, electrogas or un-shielded open arc.
  • Another possible configuration consists of one or more melting pots that continuously dispense molten metal in the process zone, where the pots are continuously filled with ready molten metal, or are fed continuously by one or more tubular wires, using electroslag, electrogas or un-shielded open arc.
  • the component can additionally rotate continuously in order to improve the liquid flow and melting pattern in the process zone.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Continuous Casting (AREA)

Abstract

La présente invention a trait à un procédé et à un appareil permettant de revêtir un substrat (2), lequel appareil comprend : une entrée de substrat ; une sortie de substrat (8) ; un moyen (10, 12, 14) qui est conçu de manière à diriger le substrat de l'entrée jusqu'à la sortie ; et une zone de traitement (6) qui est disposée entre l'entrée et la sortie, laquelle zone de traitement (6) a pour fonction de déposer un liquide en fusion sur le substrat (2) de façon sensiblement uniforme d'un bout à l'autre d'une portion de la surface du substrat qui passe à proximité, ce qui permet de la sorte de fournir un revêtement plus simple d'un substrat.
PCT/GB2013/052299 2012-08-31 2013-09-02 Procédé et appareil destinés à une gaine continue WO2014033479A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1215506.5A GB201215506D0 (en) 2012-08-31 2012-08-31 Method and apparatus for continuous cladding
GB1215506.5 2012-08-31

Publications (1)

Publication Number Publication Date
WO2014033479A1 true WO2014033479A1 (fr) 2014-03-06

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WO (1) WO2014033479A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112342473A (zh) * 2020-09-17 2021-02-09 江苏华久辐条制造有限公司 一种冷轧带钢表面耐蚀处理方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321289A (en) * 1979-09-14 1982-03-23 Norddeutsche Affinerie Aktiengesellschaft Method of and apparatus for the cladding of steel sheet or strip with lower melting metals or alloys
WO1989005207A1 (fr) * 1987-12-03 1989-06-15 Commonwealth Scientific And Industrial Research Or Surfaçage sous laitier electroconducteur
US4850524A (en) * 1988-03-02 1989-07-25 Southwest Research Institute Vertical strip clad welding method and apparatus
US5235156A (en) * 1990-04-27 1993-08-10 Isuzu Motors Limited Method and apparatus for surface modification of metal parts
US20070164002A1 (en) * 2003-10-21 2007-07-19 Jean-Louis Scandella Manufacture of hardfaced plates

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321289A (en) * 1979-09-14 1982-03-23 Norddeutsche Affinerie Aktiengesellschaft Method of and apparatus for the cladding of steel sheet or strip with lower melting metals or alloys
WO1989005207A1 (fr) * 1987-12-03 1989-06-15 Commonwealth Scientific And Industrial Research Or Surfaçage sous laitier electroconducteur
US4850524A (en) * 1988-03-02 1989-07-25 Southwest Research Institute Vertical strip clad welding method and apparatus
US5235156A (en) * 1990-04-27 1993-08-10 Isuzu Motors Limited Method and apparatus for surface modification of metal parts
US20070164002A1 (en) * 2003-10-21 2007-07-19 Jean-Louis Scandella Manufacture of hardfaced plates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112342473A (zh) * 2020-09-17 2021-02-09 江苏华久辐条制造有限公司 一种冷轧带钢表面耐蚀处理方法

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Publication number Publication date
GB201215506D0 (en) 2012-10-17

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