EP3371342B1 - Dispositif de traitement pour le décapage et la phosphatation de pièces métalliques - Google Patents

Dispositif de traitement pour le décapage et la phosphatation de pièces métalliques Download PDF

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Publication number
EP3371342B1
EP3371342B1 EP16793848.9A EP16793848A EP3371342B1 EP 3371342 B1 EP3371342 B1 EP 3371342B1 EP 16793848 A EP16793848 A EP 16793848A EP 3371342 B1 EP3371342 B1 EP 3371342B1
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EP
European Patent Office
Prior art keywords
treatment
substance
collecting chamber
treatment substance
container
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EP16793848.9A
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German (de)
English (en)
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EP3371342A1 (fr
Inventor
Joachim SCHÖNBERG
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Retomax AG
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Retomax AG
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    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G3/00Apparatus for cleaning or pickling metallic material
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/07Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
    • C23C22/08Orthophosphates
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/04Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
    • C23G1/06Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors

Definitions

  • the present invention relates to a treatment device for the one-step treatment of objects for at least pickling and phosphating a metallic treatment object.
  • Previous treatment systems for phosphating objects require a large number of work steps, in particular 7 work steps, and therefore have a large number of different baths.
  • the object is first placed in a first bath in which a first liquid for degreasing the object is provided. After degreasing, the object must be conveyed out of the first bath and into a second bath. A rinsing liquid for rinsing the object is provided in the second bath. After rinsing, the item is transferred to a third bath.
  • the third bath is filled with a hydrochloric acid / sulfuric acid mixture.
  • the object is conveyed in succession to two further baths, each filled with a rinsing liquid, for rinsing the object. Furthermore, the object is conveyed into a passivation bath after the last rinsing bath. After passivation, the object is phosphated and then transported to another location for drying.
  • the highly toxic and environmentally harmful chemicals in the degreasing baths and in the treatment baths have to be completely replaced after approx. 6 to 8 weeks of production time, since the chemicals are worn out after this time and any sludge that has accumulated must be removed from the baths. This means that the system comes to a standstill and high replacement and disposal costs.
  • Hydrogen embrittlement of the treated workpieces or treatment objects is also to be prevented. Hydrogen embrittlement usually occurs through the penetration and storage of hydrogen in a metal grid and can result in material fatigue. Hydrogen embrittlement occurs when atomic hydrogen is generated on the metal surface - either by hydrogen corrosion or another chemical reaction in metal processing that involves hydrogen - which is bound to the material faster than it does not to the material surface diffusible H 2 molecules. Some of the hydrogen is stored in the metal lattice or accumulates at defects or at the grain boundary. There is a risk of material failure depending on the stress on the respective object, e.g. due to the introduction of tensile and / or load stresses.
  • WO 2015/165600 discloses a treatment device for the one-step treatment of a metallic treatment article, the treatment comprising pickling and phosphating the treatment article.
  • This treatment device comprises a treatment container for receiving the treatment object and for receiving a flowable treatment substance, as well as a pump device for circulating at least a portion of the treatment substance, the treatment substance flowing around at least part of the treatment object, in particular the entire treatment object.
  • the surface condition of a treatment object treated according to the invention is particularly preferably to be improved.
  • a treatment device for the preferably one-step treatment of a metallic treatment article according to claim 1, the treatment comprising at least the pickling and phosphating of the treatment article.
  • the treatment device according to the invention in particular a bath system, comprises a treatment container for receiving the treatment object and for receiving a flowable treatment substance, and a pump device for exchanging at least a portion of the treatment substance, at least part of the treatment object, in particular the entire treatment object, of the treatment substance is flowed around, wherein the treatment substance is a phosphorus or phosphate-containing solution, in particular phosphoric acid, wherein the phosphorus or phosphate-containing solution consists on the one hand of water and on the other hand of a reaction substance, the reaction substance of phosphorus or a phosphate and preferably at least one additional Treatment effect improvement substance, in particular comprising one or more inhibitors, and water, in particular demineralized water, the proportion of phosphorus or phosphate in the reaction substance between 75% vol.
  • the treatment effect improvement substance in particular one or more inhibitors, preferably in an amount of 0.1 vol. % to 2.5 vol. % preferably between 0.2 vol.% and 2 vol. % and particularly preferably between 0.5 vol. % and 1.5 vol. % of the reaction substance is present.
  • the 100% vol. missing further portions are preferably formed by water, in particular demineralized water.
  • the reaction substance preferably has no proportions of hydrochloric acid and sulfuric acid and furthermore preferably no proportions of fluorine, chlorine, bromine, iodine, lead, mercury and selenium.
  • the reaction substance is preferably mixed with water, in particular in a predetermined ratio, the predetermined ratio being between a lower limit and an upper limit, the lower limit being defined by a mixture in a ratio of 1 kg of reaction substance to 3 liters of water and the upper limit by Mixture of 1 kg of reaction substance to 12 liters of water is defined, in particular the mixture is present in a ratio of 1 kg of reaction substance to 6 liters of water.
  • the reaction substance is thus preferably mixed with water in a ratio between 1 kg of reaction substance to 3 liters of water and 1 kg of reaction substance to 9 liters of water, in particular in a ratio between 1 kg of reaction substance to 5 liters of water and 1 kg of reaction substance to 7 liters of water, especially in a ratio of exactly or essentially 1 kg of reaction substance to 5.5 liters of water or in a ratio of exactly or essentially 1 kg of reaction substance to 5.8 liters of water or in a ratio of exactly or essentially 1 kg of reaction substance to 6.2 liters of water or mixed in a ratio of exactly or essentially 1 kg of reaction substance to 6.5 liters of water.
  • This solution is advantageous because an advantageous protective layer or primer layer is produced on the treatment object for a further coating, in particular a paint or powder coating, and / or the treatment object is advantageously cleaned. Furthermore, the protective layer prevents, for example, that the material of the treatment object oxidizes, as a result of which a treatment object treated by means of the device according to the invention can be exposed to the air for significantly longer than an untreated object.
  • a swirling device for whirling up impurities, in particular solid particles, which are deposited in the treatment substance, wherein the swirling device has at least one preparation device and one fluid line element with a plurality of outlet openings for supplying a swirling fluid to the treatment substance, the swirling fluid being provided by the supply device the fluid line element with a pressure of more than 200 kPa (2 bar), in particular more than 300 kPa (3 bar) or more than 400 kPa (4 bar) or more than 500 kPa (5 bar) or more than 600 kPa (6 bar) or more than 700 kPa (7 bar) or with up to 1 MPa (10 bar) or with up to 1.5 MPa (15 bar) or with up to 2 MPa (20 bar).
  • the treatment substance does not have to be exchanged and disposed of every 6-8 weeks, since the treatment device according to the invention creates a system structure in which the chemicals used are constantly cleaned. Losses of the treatment substance resulting from evaporation and carry-over can be replenished by adding water and the reaction substance, whereby it is possible that the required number of changes of the treatment substance per year can be reduced to less than 4 changes, in particular to 2 or less than 2 changes. can be reduced to 1 or less than 1 change.
  • the treatment substance is preferably only exchanged when there is a predetermined concentration of dissolved iron in the treatment substance, an exchange preferably taking place only at a concentration of dissolved iron of more than 2%.
  • the solution according to the invention prevents contaminants or impurities, in particular sludge and / or metal or rust particles, from being deposited and / or removes them from accumulations caused by deposits.
  • the accumulations can be separated again by the swirling device, as a result of which the impurities can again be kept in the treatment substance as suspended matter.
  • the contaminants can then be removed from the receiving space as suspended matter by supplying portions of the treatment substance to the filter device.
  • the fluid line element forms a plurality of line sections which can be at least functionally or fluidically decoupled from one another by means of valve devices, at least the majority of the line sections in the region the bottom of the treatment container are arranged. Any portion of the treatment container that is arranged or formed closer to the base than to the opening formed on the top of the treatment container is to be regarded as the region of the base.
  • the fluid line element is formed as a component of the floor or in the floor and can thus be formed in sections or completely below the surface of the floor facing the receiving space.
  • the fluid line element is preferably formed at least in sections less than 50 cm, preferably less than 30 cm and particularly preferably less than 10 cm from the floor of the receiving space.
  • the outlet openings or individual outlet openings or the majority of the outlet openings or a minority of the outlet openings are preferably downward, ie oriented in the direction of the floor or to the side, ie in the direction of a wall or side wall of the receiving space, with a fluid line element arranged above the floor, or upwards, ie in the direction of the insertion opening of the receiving space, through which the treatment objects can be introduced into the receiving space. It is also conceivable that the outlet openings of different pipes are directed in different directions.
  • first outlet openings are provided for each line section or pipe or on individual line sections or pipes, which are oriented in a first direction
  • second outlet openings are provided which are oriented in a second direction
  • the first direction and the second Direction is preferably different by at least 10 ° and preferably by at least 20 ° and particularly preferably by at least 45 ° or at least 60 ° or at least 90 ° or at least 120 ° or at least 150 ° or up to 180 °.
  • third outlet openings are provided, which are oriented at an angle to the first outlet openings that is different from the angle between the first outlet openings and the second outlet openings. Analogously, this can apply to fourth outlet openings and / or fifth outlet openings etc.
  • This embodiment is advantageous because the introduction of the swirling fluid or the functional fluid or the fluid, air according to the invention, can be directed such that the swirls generated by the swirling fluid effectively dissolve the deposits.
  • the line sections are formed by pipes, in particular made of copper, aluminum, iron and / or stainless steel, in particular with a pipe diameter between 2 mm and 12 mm and preferably in a pipe diameter between 3 mm and 9 mm and particularly preferably in one Pipe diameter between 4mm and 6mm, the pipes being coupled to or arranged on the bottom of the treatment container, the Pipes are connected to one another by means of at least one distributor unit, and each valve device is designed as a shut-off valve, in particular as a shut-off solenoid valve.
  • the outlet openings are preferably designed as holes, in particular bores, and preferably have a diameter between 0.5 mm and 8 mm, preferably a diameter between 1.5 mm and 6 mm and particularly preferably a diameter between 2.5 mm and 4 mm, in particular exactly or essentially 3 mm , on.
  • the provision device is designed to provide air under a pressure of at least 2 bar.
  • the air preferably consists of ambient air from the surroundings of the device according to the invention. This embodiment is advantageous since ambient air is available free of charge and, due to its low density, moves automatically through the treatment substance or automatically moves out of the movement substance. When traversing the treatment substance, the air displaces the treatment substance locally, causing it to move, which could result in turbulence.
  • a filter device for filtering the treatment substance is provided in accordance with a further preferred embodiment of the present invention, the filter removing impurities from the treatment substance that have accumulated in the treatment substance.
  • a control device for operating the filter device and the swirling device is preferably additionally provided.
  • the filter device and the swirling device are particularly preferably operable at least temporarily as a function of one another. This embodiment is advantageous because the interaction of the swirling device with the filter device allows the contaminants to be removed from the treatment substance very efficiently.
  • the operation of the swirling device comprises at least temporarily the provision of the fluid and the actuation of the valve device, the valve devices being controllable according to predetermined courses, in particular at programmed time intervals. It is thus possible for individual, a plurality, the plurality or all valve devices of the line element or individual line sections to be switched in such a way that fluid is supplied to the treatment substance for a predetermined period of time through all outlet openings fluidly connected to the open valve devices. However, it is also conceivable that single or multiple valve devices switched one after the other, in particular switched pulsating.
  • the individual valve devices are particularly preferably controlled, however, by means of a predetermined program and / or a preferably adjustable interval switching and / or as a function of status data of the treatment substance recorded by means of the sensor device.
  • the swirling device is particularly preferably activated and / or deactivated as a result of the sensor data.
  • the sensor data can include data relating to the proportion of the contaminants in the bottom area of the device and / or in one or individual areas of the treatment container. Additionally or alternatively, it is conceivable that the swirling device can be activated and / or deactivated manually and / or by means of a remote control.
  • the reaction substance particularly preferably has no proportions of hydrochloric acid and sulfuric acid.
  • the treatment objects essentially only have to be immersed in the treatment substance, the treatment substance has to act and dry after the treatment object has been removed from the bath.
  • the high-purity phosphorus or the high-purity phosphate forms a protective layer on the treatment objects after drying, so that these are protected against further attack over a longer period of time, in particular several weeks, without this being necessary according to the prior art Passivation and subsequent phosphating takes place, and in particular the resulting protective layer is far superior to phosphating according to the prior art.
  • This solution is also advantageous because the treatment substance is non-flammable, no MAK values (maximum workplace concentration) are exceeded by the use of the treatment substance and no corrosive vapors are produced, so that no suction is required.
  • the treatment device according to the invention preferably also causes degreasing and / or rust removal and / or descaling and / or preservation and / or decalcification of the treatment object.
  • Treatment objects can preferably be treated purely by way of example: metal parts, such as aluminum parts, iron parts, cast iron parts, wire, steel parts, copper parts or parts made of alloys, polymer parts, such as plastic parts or rubber parts, etc., in particular vehicle frames, pipes, machine parts, turbocharger parts, housings, auto parts , Hydraulic parts, cast steel parts, turbine parts.
  • metal parts such as aluminum parts, iron parts, cast iron parts, wire, steel parts, copper parts or parts made of alloys
  • polymer parts such as plastic parts or rubber parts, etc.
  • vehicle frames pipes, machine parts, turbocharger parts, housings, auto parts , Hydraulic parts, cast steel parts, turbine parts.
  • the percentages with regard to the invention apply as volume percent.
  • the percentages and temperatures in ° C with respect to the invention relate to the ambient pressure or normal pressure, if nothing else arises from the subject matter of the invention, and furthermore the data in ° C can also be correspondingly for Kelvin be valid.
  • the details of the invention relating to the physical units with regard to the overall disclosure of the invention cannot be explained to the person skilled in the art, but if a physical parameter should be modified, it is obvious to the person skilled in the art that the resulting changes in the other physical Adjust sizes accordingly without leaving the scope of the invention.
  • a temperature control device is provided for temperature control of the treatment substance that can be stored in the treatment container, the temperature of the treatment substance being adjustable in a defined manner by means of the temperature control device.
  • the preferred temperature of the treatment substance is preferably higher than 0 ° C, in particular higher than or equal to 5 ° C, higher than or equal to 10 ° C, higher than or equal to 15 ° C, higher or equal to 17 ° C, higher or equal to 20 ° C, higher or equal to 25 ° C, higher or equal to 30 ° C, higher or equal to 35 ° C, higher or equal to 37 ° C, higher or equal to 40 ° C, preferably between 20 ° C and 60 ° C and particularly preferably between 30 ° and 50 ° C.
  • the temperature control of the treatment substance preferably represents heating of the treatment substance, although it is also conceivable that the temperature control represents cooling.
  • the treatment substance can be temporarily heated and temporarily cooled by the temperature control device.
  • the temperature control device is preferably designed as an electrical heating device, electrical cooling device and / or as a heat exchanger system.
  • the workflow can be controlled depending on the temperature of the treatment substance.
  • the acceleration factor can be 20: 20Cx6. This means that the treatment object can be made rust-free with a treatment that takes 2 hours at 20 ° C. or with a treatment at 40 ° C. that takes 20 minutes.
  • a particularly preferred operating temperature range is 35 ° C to 45 ° C, this temperature range is advantageous because extraction is not necessary because there are no corrosive or harmful vapors.
  • suction is provided if e.g. the work area is extremely low or if the work area cannot be ventilated.
  • the phosphorus and phosphate-containing solution preferably consists of fully decalcified water and the reaction substance, the proportion of reaction substance to the proportion of demineralized water being between 1: 4 and 1: 7, the proportion of reaction substance being preferred to the proportion of demineralized water 1: 6 if the reaction substance is in a solid state or the proportion of reaction substance to the proportion of demineralized water is preferably 1: 5 if the reaction substance is in a liquid state.
  • the reaction substance preferably also has no fractions of fluorine, chlorine, bromine, iodine, lead, mercury and selenium, so that the device according to the invention works without substances or substances that are harmful to health or the environment.
  • the pump device is designed as a circulation pump and preferably causes the treatment substance to circulate within the treatment container. It is however, alternatively or additionally conceivable that a pump device is provided for generating a weir flow.
  • One or more nozzles are preferably coupled to the pump device, through which the treatment substance is dispensed, in particular into treatment containers, in particular for circulating the bath.
  • the treatment tank can be made in any size.
  • the treatment container has an inside, i.e. on the side in contact with the treatment substance on a material or a material mixture that is not attacked by the treatment substance.
  • Preferred materials here include e.g. stainless steel, GVP, PVC.
  • GVP stainless steel
  • PVC polyvinyl chloride
  • a filter device for filtering the treatment substance, wherein the filter removes impurities from the treatment substance that accumulate in the treatment substance.
  • This embodiment is advantageous because the treatment substance can be cleaned or prepared continuously or temporarily in the treatment container.
  • the treatment container is coupled to at least two receiving spaces, a first receiving space being a buffer receiving space, which is preferably formed below the treatment container, for holding a certain amount of the treatment substance, and a second receiving space being a temperature control space preferably formed to the side of the treatment container is, wherein the temperature control device is at least partially arranged in the temperature control room.
  • the first receiving space or the buffer space can be used, for example, to hold a desired volume of the treatment substance. It is also conceivable that the first receiving space or the buffer space serves to receive or to deposit sediments.
  • the sediments can be, for example, parts or particles that detach from the treatment objects during the treatment.
  • the temperature control room is preferably arranged on the side next to the treatment tank, since this allows very good access to the temperature control device. Furthermore, however alternatively, it is also conceivable that the temperature control device is formed or arranged in the first receiving space or in the buffer space, ie below the treatment container. This embodiment is advantageous because the individual portions of the treatment substance can reach different functional areas or receiving spaces and the main receiving space without damage to devices designed or arranged in one or more receiving areas, such as the temperature control device, being possible due to a collision with the treatment object .
  • the treatment container is separated by a wall from a collecting space for collecting treatment substance flowing over the wall, the treatment substance collected in the collecting space being conveyed into the treatment container by means of a conveying device, in particular by means of the pumping device is recoverable.
  • a conveying device in particular by means of the pumping device is recoverable.
  • the pump device and the filter device form part of the delivery line and the conveyed treatment substance is preferably conveyed through or by the pump device through the filter device.
  • the pump device causes the treatment substance to be conveyed through the filter device and at least partially causes the treatment substance to circulate in the treatment container.
  • the or a delivery line is designed such that a weir flow for discharging part of the treatment substance out of the treatment container and into the collecting space can preferably be generated by the treatment substance conveyed back into the treatment container.
  • a weir flow for discharging part of the treatment substance out of the treatment container and into the collecting space can preferably be generated by the treatment substance conveyed back into the treatment container.
  • a metering device can be provided for adapting the composition of the treatment substance, the treatment substance consisting of a mixture of several components.
  • the metering device is preferably coupled to one or more sensor devices directly or indirectly via a control device, the sensor devices preferably monitoring or analyzing the composition of the treatment substance and / or monitoring the volume or the remaining amount or the fill level in the treatment container enables or enable existing treatment substance.
  • the metering device in particular compensates for losses by adding the corresponding amount of treatment substance lost, in particular evaporation and / or immersion losses are bleached out.
  • the metering device preferably adds the components forming the treatment substance, in particular demineralized water, the reaction substance and the treatment effect improvement substance.
  • the components forming the treatment substance are preferably added in a fixed ratio, in particular in the ratio in which the individual components are also provided in the treatment container or in another fixed ratio. It is also conceivable that the treatment substance to be added is already added in the form of a finished mixture or finished solution.
  • the sensor device can preferably be used as a device for performing a titration, i.e. be trained to determine the concentration.
  • a titration i.e. be trained to determine the concentration.
  • the metering and introduction of substances into the treatment substance is effected partially, temporarily or always manually.
  • the proportion of reaction substance to the proportion of demineralized water can be between 1: 4 and 1: 7, the proportion of reaction substance to the proportion of demineralized water preferably being 1: 6 when the reaction substance is in a solid state with the VE -Water is mixed or wherein the proportion of reaction substance to the proportion of demineralized water is preferably 1: 5 if the reaction substance is mixed in a liquid state with the demineralized water.
  • the losses are preferably also replaced in a fixed ratio of several substances.
  • reaction substance (s) is / are thus flowable, in particular liquid or solid, reaction substance (s) which is / are preferably mixed with a diluent, such as water, in particular demineralized or distilled water or fully decalcified water (demineralized water) .
  • a diluent such as water, in particular demineralized or distilled water or fully decalcified water (demineralized water) .
  • Preferred mixing ratios between the reaction substance and the diluent, in particular demineralized water are furthermore, for example, 1: 2; 1: 3, 1: 4; 1: 5; 1: 5.5; 1: 6; 1: 6.5; 1: 7.5; 1: 8; 1: 8.5; 1: 9.
  • An admixture of a mixture or solution of one or more additional substances, in particular one or more liquids, in particular demineralized water, and / or one or more preferably soluble additives, is preferably carried out automatically or manually as a function of values generated by the sensors. It is also conceivable that an additional substance, in particular for pickling degreasing and / or for defoaming, is added to the treatment substance.
  • the additional substance is preferably mixed with approximately 0.5% to 10%, in particular 1% to 5%, of the volume of the treatment substance of the treatment substance.
  • demineralized water is preferred in this case, since this essentially or uniform surface quality is obtained on the treatment objects.
  • pickling degreaser is advantageous because by adding it to the treatment substance, impurities such as light greasing, dirt, oil, coal and graphite can be removed in the same operation.
  • the treatment substance may contain a solution containing phosphorus or phosphate, in particular phosphoric acid, the phosphorus or phosphate fraction of the solution preferably being highly pure, i.e. has a purity of more than 75%, in particular of more than 75%, 80%, 82%, 85% and preferably of exactly or essentially 86%, this being volume percent. Due to the purity of the phosphorus portion or the phosphate portion of the treatment substance, the treatment substance has almost no impurities, so that a corresponding protective layer is formed on the treatment object.
  • the pH of the reaction substance is preferably essentially 1, the density of the reaction substance is preferably 1.8 and at a temperature of 20 ° C.
  • the flash point of the reaction substance is preferably 280 ° C. or preferably higher than 280 ° C.
  • the treatment substance preferably has demineralized water and preferably in addition to the demineralized water a reaction substance in an amount of 1-10%, in particular 3-5%, of the amount of Demineralized water.
  • the exposure time is i.e. the time that the treatment object in the treatment container is exposed to the treatment substance, preferably 0.5 minutes to 20 minutes and particularly preferably 1 minute to 10 minutes.
  • the reaction substance here preferably consists of phosphoric acid, water, in particular demineralized water (ie demineralized water) and inhibitors.
  • the treatment substance can have an additive for pickling degreasing, or such additive substance is added to a treatment substance, the pickling degreaser additive preferably having an aqueous solution of non-ionic biodegradable surfactants and inhibitors, in particular but-2-in-1,4-diol, and wherein the pickling degreaser additive is added with a volume of 0.5% to 7% of the volume of the phosphorus or phosphate-containing solution or the treatment substance.
  • the treatment substance can have an additional substance for defoaming, the defoamer additive preferably having triisobutyl phosphate and the defoamer additive of the treatment substance with a volume of 0.01% to 5%, in particular with a volume of 0.1% to 1%, of the volume of phosphorus - or phosphate-containing solution or the treatment substance or with a volume of 0.01% to 5%, in particular with a volume of 0.1% to 1%, of the volume of the phosphorus or phosphate-containing solution or the treatment substance mixed with the pickling degreaser additive is clogged.
  • the defoamer additive preferably having triisobutyl phosphate and the defoamer additive of the treatment substance with a volume of 0.01% to 5%, in particular with a volume of 0.1% to 1%, of the volume of the phosphorus or phosphate-containing solution or the treatment substance mixed with the pickling degreaser additive is clogged.
  • a control device can be provided, the control device controlling the temperature control device in such a way that the treatment substance is applied to a Target temperature or a target temperature curve is tempered and / or wherein the control device controls the pump device such that the treatment substance is delivered with a target flow rate or a flow characteristic, and / or the control device controls the filter device such that the filtered portion of the treatment substance has a target purity, and / or the control device controls the dosing device such that a target composition of the treatment substance can be set.
  • the treatment device has one or more oil separation system (s), ultrasound system (s), high pressure system (s), rotating and lifting device (s) and / or fully decalcified water supply system (s).
  • oil separation system s
  • ultrasound system s
  • high pressure system s
  • rotating and lifting device s
  • fully decalcified water supply system s
  • a degreasing bath can be provided, in particular for degreasing the treatment objects with an unusually high fat content, in particular upstream of the treatment container.
  • the treatment substance in the degreasing bath can preferably be heated to a temperature which is higher than the preferred operating temperature or treatment temperature of the treatment substance in the treatment container.
  • the temperature in the degreasing bath is preferably greater than 50 ° C., in particular greater than 52 ° C. and particularly preferably greater than or equal to 60 ° C. This is advantageous since only very heavily oiled or greased treatment objects can be introduced into a degreasing bath which is suitably tempered for degreasing.
  • the temperature of the degreasing bath which is preferably heated to more than 50 ° C., preferably does not have to be brought about permanently or only temporarily. Furthermore, the formation of water vapor in the region of the treatment container of the treatment device according to the invention can be prevented if the temperature of the treatment substance is below a threshold temperature, in particular below 52 ° C., or is not heated above this threshold temperature.
  • a treatment method for at least pickling and phosphating an, in particular metallic, treatment object preferably comprises the steps of providing a treatment container for holding at least one treatment object and for taking up a flowable treatment substance, with no further treatment container being used for degreasing and phosphating, the introduction of the Treatment substance in the treatment container and the introduction of the treatment object into the treatment container at least partially filled with the treatment substance for bringing the treatment object into contact with the treatment substance, wherein the contact between the treatment substance and the treatment object causes at least a pickling and phosphating of the treatment object, the Treatment substance is a phosphorus or phosphate-containing solution, in particular phosphoric acid, the phosphorus or phosphate-containing solution consisting on the one hand of fully decalcified water and on the other hand of a reaction substance, the reaction substance of phosphorus or a phosphate and water, in particular demineralized water, and there is preferably an additional treatment effect improvement substance, the proportion of phosphorus or phosphate in the reaction substance being at
  • the treatment method is advantageous since a closed circuit is created which does not require a rinsing process and therefore no delivery of the object into a sink. Furthermore, the method according to the invention is highly advantageous since, particularly in comparison to mechanical treatment methods, it enables the object of treatment to be treated very thoroughly, gently and quickly. This solution is also advantageous because the treatment substance is non-flammable, no MAK values (maximum workplace concentration) are exceeded by the use of the treatment substance and no corrosive vapors are produced, so that no suction is required.
  • the method preferably further comprises the steps: removing the treatment object from the treatment container, whirling up impurities transferred by the treatment object to the treatment substance by means of a swirling device, wherein a swirling fluid is supplied to the treatment substance by the swirling device to swirl the impurities, supplying the impurities whirled up with the swirling device provided treatment substance to a filter device, filtering out the impurities from the treatment substance portions which are fed to the filter device, re-introducing the treatment object into the treatment container at least partially filled with the treatment substance for bringing the treatment object into contact with the filtered treatment substance or introducing one further treatment object in the treatment container at least partially filled with the treatment substance for bringing the treatment object into contact with the filtered treatment substance.
  • a control device for operating the filter device and / or the swirling device can be provided.
  • the filter device is preferably operated at least temporarily as a function of an operation of the swirling device, or the swirling device is operated at least temporarily as a function of the filter device.
  • the operation of the swirling device preferably includes at least temporarily the provision of the fluid or swirling fluid and the control of the valve device.
  • the valve devices are preferably activated according to predetermined courses, in particular at programmed time intervals. This solution is advantageous because the impurities can be filtered out of the treatment substance very quickly or effectively.
  • the treatment objects preferably remain in the treatment container together with the treatment substance for more than 5 minutes, in particular more than 10 minutes and preferably between 20 minutes and 120 minutes, in particular between 30 minutes and 90 minutes.
  • the method according to the invention particularly preferably brings about the fact that the treatment object is exposed to the treatment substance, in addition to the pickling and phosphating, also degreasing and / or descaling and / or preserving and / or decalcifying the treatment object.
  • a pore-free protective layer can be produced on the surface of the treatment object by means of the treatment substance, in particular by means of the reaction substance, while preventing hydrogen embrittlement, the protective layer having a thickness of at least 2 ⁇ m and preferably of at least 3 ⁇ m.
  • the non-porous protective layer protects the treatment object from oxygen and water, so that rust is effectively prevented.
  • the protective layer in particular a phosphate layer, in particular an iron phosphate layer, is preferably formed by the treatment method described, in particular after a drying time of 3 hours to 48 hours, in particular from 6 hours to 24 hours, in the ambient air or after a drying time of approx 5 minutes to 60 minutes, in particular from approximately 20 minutes, in an oven at 70 ° C. to 150 ° C., in particular at approximately or exactly 100 ° C., on the material surface of the treatment object (in particular made of iron or normal steel).
  • the resulting protective layer is preferably between 2 ⁇ m and 10 ⁇ m, in particular more than or exactly 3 ⁇ m, 4 ⁇ m or 5 ⁇ m, thick.
  • the protective layer particularly preferably has a thickness of 2 ⁇ m to 10 ⁇ m, preferably 3 ⁇ m to 8 ⁇ m and particularly preferably 4 ⁇ m to 6 ⁇ m.
  • the protective layer preferably has no or essentially no pores and is therefore particularly preferably non-porous.
  • the protective layer is elastic and adapts particularly preferably to temperature fluctuations from -60 ° C. to 750 ° C. and particularly preferably from -40 ° C. to 680 ° C. without peeling off, the protective layer preferably having a high flexibility, in particular from to to 180 ° or more than 180 ° (e.g. with iron bars).
  • the protective layer can be an excellent basis for a further treatment, in particular a color treatment, which can follow the method according to the invention, for example.
  • the protective layer preferably reacts neutrally and does not form any chemical compounds with hydraulic fluids. Further extremely important advantages of the method according to the invention are that the protective layer does not cause rust on the objects to be treated and, when pickling, a material removal of preferably less than 10 g / m 2 , in particular less than 5 g / m 2 , and particularly preferably of or less than 2.24 g / m 2 .
  • the treatment method described preferably likewise has the step of tempering the treatment substance that can be stored in the treatment container and / or the step of generating a flow of at least part of the treatment substance, the treatment substance flowing around at least part of the treatment object.
  • the treatment substance which can be stored in the treatment container is tempered by means of a temperature control device, the temperature of the treatment substance being set in a defined manner by means of the temperature control device, and a flow for moving at least a portion of the treatment substance by means of a pump device, wherein the treatment substance flows around at least part of the treatment object.
  • the treatment substance is filtered according to a further preferred embodiment of the present invention by means of a filter device, the filter removing impurities from the treatment substance that have accumulated in the treatment substance.
  • the treatment container is separated by a wall from a collecting space for collecting treatment substance flowing over a wall, the treatment substance collected in the collecting space being conveyed back into the treatment container by means of a conveying device, in particular by means of the pumping device, via a conveying line becomes.
  • the pump device and the filter device form part of the delivery line and the pumped treatment substance is conveyed through the filter device by the pump device.
  • the delivery line is designed in such a way that a weir flow for discharging a part of the treatment substance out of the treatment container and into the collecting space is generated by the treatment substance conveyed back into the treatment container.
  • composition of the treatment substance can be controlled by means of a metering device, the treatment substance consisting of a mixture of several components.
  • an additional substance for pickling degreasing and / or an additional substance for defoaming can be added to the treatment substance, the pickling degreaser additive preferably being one aqueous solution of non-ionic biodegradable surfactants and inhibitors, in particular but-2-in-1,4-diol, and wherein the pickling degreaser additive with a volume of 0.5% to 7% of the volume of the phosphorus or phosphate-containing solution or is added to the treatment substance and the defoamer additive preferably comprises triisobutyl phosphate and the defoamer additive of the treatment substance has a volume of 0.1% to 1% of the volume of the phosphorus or phosphate-containing solution or a volume of 0.1% to 1% of the volume the phosphorus or phosphate-containing solution or the treatment substance mixed with the pickling degreaser additive is added.
  • the temperature control device can be controlled by means of a control device such that the treatment substance is tempered to a target temperature or a target temperature profile and / or by means of the control device the pump device is controlled in such a way that the treatment substance is conveyed with a target flow rate or a target flow characteristic and / or by means of the
  • the control device controls the filter device such that the filtered portion of the treatment substance has a target purity, and / or by means of the control device the metering device is controlled such that a target composition of the treatment substance can be set and / or by means of the control device the swirling device, in particular the preparation device and / or the valve devices, in particular the fluid line element and / or the provision device, are controlled such that a Whirling or whirling up of the impurities present, in particular settled, in the treatment substance, in particular solid particles, such as metal particles, in particular rust particles, takes place.
  • the use of the words “essentially” preferably defines a deviation in the range from 1% -30%, in particular from 1% -20%, in particular from 1% -10, in all cases in which these words are used in the context of the present invention %, especially 1% -5%, especially 1% -2%, of the definition that would be given without the use of these words.
  • FIG. 1 A treatment device 1 according to the invention is shown.
  • the treatment device 1 is used for treatment, in particular for degreasing, pickling, phosphating, descaling, preservation and rust removal, of one or more treatment objects 2.
  • the treatment object 2 is preferably introduced into a treatment container 4 of the treatment device 1 from above.
  • the treatment container 4 is preferably at least partially and particularly preferably completely filled with a treatment substance 6.
  • a temperature control device 8 is preferably provided for temperature control, in particular for heating, the treatment substance 6.
  • at least one pump device 10 is preferably provided for circulating the treatment substance 6 and / or for creating a weir flow 20 and / or for returning treatment substance 6 which has emerged from the treatment container 4 back into the treatment container 4.
  • the treatment container 6 is separated from a collecting space 14 by means of a wall 12. Due to the flow created in the treatment container 4, treatment liquid 6 emerges from the treatment container 4 via the wall 12 and thus reaches the collecting space 14. However, it is also conceivable that the treatment substance or liquid 6 can be brought into the treatment object by introducing the treatment object 2 Treatment room 4 experiences such a displacement that part of the treatment substance 6 emerges from the treatment container 4 via the wall 12.
  • the reference numeral 16 denotes a delivery line, by means of which the treatment substance 6 emerging from the treatment container 4 is conveyed back into the treatment container 4.
  • a filter device 18 for filtering or processing the treatment substance 6 is preferably arranged in the area of the delivery line 16 or in the delivery line 16 or as part of the delivery line 16.
  • the pump device 10 or a further pump device is arranged or formed in the course of the delivery line 16.
  • a pump filter device can be provided, which either replaces a pump device and / or a filter device or can be designed in addition thereto.
  • the treatment container 4 preferably has at least one main receiving space 22, a first secondary receiving space 24 and a second secondary receiving space 26.
  • the individual receiving spaces 22, 24, 26 are separated from one another, for example by grids 27, in particular a grating.
  • the grid 27 prevents the treatment object 2 from being able to get into one of the auxiliary receiving spaces 24, 26.
  • the reference numeral 28 denotes a nozzle, by means of which a flow of the treatment substance 6 can be generated.
  • Fig. 2 shows that out Fig. 1 known representation, the treatment object 2 being arranged in the treatment container 4 according to this representation and thereby being in contact with the treatment substance 6.
  • Fig. 3 shows a further embodiment variant of a treatment device 1 according to the invention, in particular for wire coil treatment.
  • the treatment device 1 shown has, by way of example, a receiving rack 40 which preferably carries a plurality of wire coils 39 to be treated.
  • the receiving rack 40 is arranged on a delivery point 41, with a plurality of receiving racks 40 and a plurality of delivery points 41 preferably being provided.
  • the treatment device 1 preferably has a plurality, in particular 2, 3, 4, 5, 6, 7, 8 or more, of treatment baths 42.
  • a plurality of, in particular 2, 3, 4, 5, 6, 7, 8, 9 or more, wire coils 39 can preferably be introduced into a treatment bath 42 at the same time as the treatment.
  • the reference numeral 43 denotes a preferably purely optional device, namely a fixation bath. It is conceivable here that a plurality of wire coils 39, in particular 2, 3, 4, 5, 6, 7, 8 or more, can be introduced into a fixing bath 43 at the same time. It is also conceivable that a plurality of fixing baths 43 are provided.
  • the treated wire coils 39 can be arranged at a removal point 44 for removal.
  • the treated wire coils 39 are preferably conveyed to the respective removal point 44 using a transport device 45, in particular a transport trolley or a rail-guided portal crane. Furthermore, several devices for supplying, regulating and controlling the treatment device 1 are preferably provided.
  • the illustrated embodiment has a pressure belt filter device 46, a metering device 47, a demineralized water treatment device 48, a control device 49, a further pressure belt filter device 50, a storage tank for treatment tanks 51 and several side channel compressors 52, in particular 8 pieces.
  • the metering device 47 is preferably automated and particularly preferably has a buffer tank with a volume of preferably more than 5m 3 , particularly preferably more than 10m 3 and most preferably more or exactly 20m 3 .
  • Fig. 4 shows a perspective view of a treatment device 1 according to the invention.
  • the treatment device 1 is preferably L-shaped, ie it comprises a treatment container 4, the treatment container 4 having a first interior part, which preferably extends at right angles to a second interior part.
  • One interior portion is preferably longer than the other interior portion, it also being conceivable that the interior portions are the same length or are essentially the same length.
  • the design shown enables, for example, curved Elements such as pipes. Treat straps, panels, etc.
  • the treatment container 4 preferably has at least or exactly one wall 12, an area into which the treatment objects to be treated are introduced being separated from a collecting space 14 by the wall 12.
  • the collecting space 14 preferably serves to collect the treatment substance emerging from the treatment space via the wall 12.
  • the reference number 10 denotes a pump device, in particular for generating a flow within the treatment substance to be introduced into the treatment room.
  • the reference numeral 18 denotes a filter device 18 for filtering or processing the treatment substance.
  • a movement or flow of the treatment substance is detected by means of nozzles 28a, 28b and 29a, 29b, 29c (cf. Fig. 5 ), from which the treatment substance conveyed by means of the pump device 10 is pumped into the treatment room.
  • the housing 61 encloses or encloses the nozzles 29a-29c.
  • Three rows with two nozzles 28a, 28b and three rows with three nozzles 29a, 29b, 29c are preferably provided, wherein it is also conceivable that exactly or at least one nozzle 28 and / or 29 is provided.
  • the nozzles 28 are particularly preferably aligned at an angle to the nozzles 29, in particular at right angles.
  • the reference numeral 60 denotes a main suction line, by means of which via outlets 57a-57g (cf. Fig. 7 ) Treatment substance is removed from the treatment room, in particular suctioned off.
  • the removed treatment substance is preferably processed by means of the filter device 18 and conveyed back into the treatment room by means of the pump device 10 via the nozzles 28 and 29.
  • the treatment device 1 can preferably be dimensioned such that a footprint of 5100mm x 3800mm is required.
  • the treatment device 1 preferably comprises a bath volume of essentially, up to, at least or exactly 14 m 3 .
  • the usable volume of the treatment device 1 according to the invention is preferably 3400 mm ⁇ 3000 mm ⁇ 1500 mm and the height of the overflow to the upper edge is preferably 200 mm.
  • Fig. 5 shows a further view of the aforementioned embodiment of the treatment device 1 according to the invention.
  • the nozzles 29a-29c or the 3x3 nozzle arrangement are preferably in a pocket 61 in a wall of the treatment container 4 is housed so as not to disturb or impair the usable area.
  • the nozzles 28a-28b are also accommodated in a pocket in another wall of the treatment container 4, so as not to disturb or impair the usable area.
  • the pockets 61 are preferably provided with an impact protection (not shown) in order to avoid damage to the internals.
  • a further filter device 19 is shown, the further filter device 19 preferably being designed as a coarse filter.
  • the treatment substance to be processed is first sucked out of the treatment container, then fed to the further filter device 19, then passed through the pump 10, then through the filter device 18, which can preferably be designed as a bag filter, and then back via the nozzles 28, 29 conveyed into the treatment tank.
  • the illustration shows that the bottom of the treatment container 4 has surface portions 53, 54, 55, 56 that are inclined relative to the horizontal.
  • the surface portions 53-54 and 55-56 are preferably each arranged in such a way that they form a linear contact area with one another in the region of a low point considered with respect to a vertical direction.
  • the contact area is preferably at a level below a contact area between the outer wall of the container extending in the vertical direction and the respective area portion or bottom portion 53, 54.
  • the area portions or bottom portions 53, 54 and 55, 56 thus preferably form channels , through which the treatment substance and dirt particles are directed to one or more outlets.
  • the surface portions 53-56 are preferably aligned with an inclination of 2 ° to 25 ° and particularly preferably with an inclination of 6 ° to 15 ° and most preferably with an inclination of essentially or exactly 10 ° with respect to the horizontal.
  • the reference number 8 denotes a temperature control device that is preferably provided.
  • the temperature control device 8 preferably has 8 electrical heating elements, in particular 2 kW.
  • the heating elements are preferably also accommodated in the pocket 61 in the wall, in order not to disturb or impair the usable area that is preferably required.
  • Fig. 6 shows in particular a detailed representation of the pocket 61, in which the nozzles 29a-29c and the temperature control device 8 are preferably arranged.
  • Fig. 7 shows the first portion of a channel 62 resulting from the bottom portions 53, 54 and 55, 56 of the treatment container 4 which are inclined relative to one another and the resulting second portion 63 of the channel.
  • the channel preferably also extends into the collecting space 14.
  • Outlets 57a-57f in particular a plurality of outlets, are particularly preferably provided in the channel or in the region of the channel for the outlet or for suctioning the treatment substance out of the treatment room.
  • at least one outlet 57g is preferably provided in the collecting chamber 14 for discharging or for suctioning the treatment substance out of the collecting chamber 14.
  • the outlets 57a-57g are preferably in fluid communication with the main suction line 61 via connecting lines.
  • a grating which is preferably aligned horizontally or at right angles to the side walls of the treatment container 4, overlays the floor 53, 54, 55, 56 of the treatment room, the grating being spaced from the floor, in particular more than 20 mm and preferably more is spaced apart by more than 50 mm and particularly preferably more than 100 mm, the grating being particularly preferably spaced apart by a maximum of 500 mm from the bottom of the treatment container.
  • the grating preferably takes on the function of spacing a treatment object introduced into the treatment room from the floor of the treatment room, as a result of which particles detached from the treated treatment objects can collect underneath the treatment object and so that these particles can always be extracted.
  • Fig. 8 shows the main suction line 60 and a part of the connecting pipes 58a-58g, through which the outlets 57a-57g are connected to the main suction line 60.
  • the overall suction line which preferably consists at least of the connecting pipes 58a-58g and the main line 60, is preferably designed to be removable. This is particularly advantageous for cleaning the individual parts of the overall suction line.
  • Fig. 9 shows a perspective view of the underside of the treatment device 1 according to the invention. This view shows in particular the connection pipes 58a-58g connected to the outlets and the main suction line.
  • FIGS 10a and 10b show different side views of the in the Figures 4 to 9 shown treatment device 1.
  • the structure of the photograph is somewhat relief-like in the photograph, but due to the large magnification it is obvious to the person skilled in the art that a smooth and closed surface structure has resulted from the deposited phosphorus on the steel sheet .
  • This closed surface structure made of phosphorus has resulted from the use of high-purity phosphorus and can be used for further treatment with lacquer or a powder coating without further pretreatment.
  • the steel sheet treated in this way with the deposited phosphor layers can be used directly for painting or powder coating.
  • Fig. 13 shows a schematic representation of an example of a swirling device 70 in a top view.
  • the swirling device 70 can be designed as a fixed component of a treatment container 4 or can be detachably connected to such a treatment container 4.
  • the swirling device 70 preferably comprises a fluid line element 74, which preferably consists of one or more line sections 80a-80e is formed.
  • the individual line sections 80a-80e can be formed by lines, in particular hoses or pipes.
  • Each line section 80a-80e preferably has a multiplicity of outlet openings 76 through which a swirling fluid, which can be supplied to the fluid line element 74 via a fluid supply device 72, can emerge or escape again from the fluid line element 74.
  • the individual line sections are particularly preferably connected or coupled to a distribution device 84.
  • Each line section 80a-80e is preferably connected or coupled to a valve device 78, in particular a magnetic shut-off valve.
  • the valve devices 78 are preferably arranged between the distributor device 84 and the first outlet device 76 in the fluid flow direction of the swirling fluid conducted through the fluid line element.
  • a plurality of line sections 80a-80e are coupled to a common valve device 78, or that a common valve device 78, in particular a shut-off valve, such as a magnetic shut-off valve, is provided for a plurality of line sections.
  • a control device 86 and / or pulse generator device 86 is preferably connected to the distributor device 84.
  • the control device 86 preferably initiates the opening and / or closing of one, individual, a plurality, the plurality or all of the valve devices 78, in particular shut-off valves 78.
  • the control device 86 preferably has a control device valve device through which a fluid communication channel, by means of which the control device 86 controls the Swirling fluid is supplied, interrupted, limited or can be opened.
  • the fluid communication channel is preferably formed on the one hand by the distributor unit 84 with the adjoining line sections 80a-80e and on the other hand by a line connection 73, in particular a hose, which communicates with a fluid supply device 72.
  • the fluid supply device 72 can alternatively also be connected directly to the control device 86 and / or the distributor unit 84.
  • the fluid supply device 72 is preferably a pressurized fluid connection of a pressurized fluid source, such as a pressurized gas connection of a pressurized gas source, in particular a pressurized air connection of a pressurized air source.
  • a pressurized fluid source such as a pressurized gas connection of a pressurized gas source, in particular a pressurized air connection of a pressurized air source.
  • This can be, for example, a compressor and / or a pressurized accumulator.
  • Fig. 14 is that out Fig. 13 known and purely exemplary described swirling device 70 arranged in a treatment container 4 and thereby forms an example of the inventive device.
  • the treatment container 4 is bounded in the longitudinal direction on the one hand by the weir wall 12 and on the other hand by the rear wall 92. In the width direction, the treatment container bounded on the one hand by the first side wall 90 and on the other hand by the second side wall 91.
  • the bottom 82 of the treatment container 4 preferably has an outlet mouth 85 through which the treatment substance can be removed, in particular can be derived or pumped, from the main receiving space.
  • the outlet mouth 85 is preferably connected to the filter device 18 such that the treatment substance discharged via the outlet mouth 85 is supplied to the filter device or can be supplied.
  • the weir wall 12 delimits the collecting space 14, into which the impurities whirled up by the swirling device 70 can be guided with the treatment substance passing over the weir wall 12 via the outlet mouth 83 to the filter device 18 for filtering.
  • pipes in particular made of stainless steel, with a preferred diameter between 4 mm and 6 mm are preferably installed permanently on the trough bottom of the treatment plant. These pipes are preferably combined via a distributor unit.
  • Each pipe is particularly preferably provided with a shut-off valve, although it is alternatively conceivable that only the distributor unit is provided with a valve device, in particular a shut-off valve such as a magnetic shut-off valve, so that individual partial areas or the entire area can be acted upon in the bath.
  • the swirling fluid can be supplied to one or more pipes in a targeted manner, as a result of which special flows or swirls can be generated in the treatment substance.
  • the fluidizing fluid under pressure in particular compressed air
  • the introduction, in particular blowing, of the swirling fluid, in particular the compressed air is preferably controlled via a time switching valve and / or a control device 86 and can take place uniformly or pulsating, permanently or at programmed time intervals or as a function of sensed sensor measurement data.
  • the filter device 18 or the installed filter system preferably runs along and removes the whirled up dirt from the Treatment substance.
  • Fig. 15 schematically shows the rising fluidizing fluid, in particular the rising air bubbles 88.
  • the treatment substance is swirled by the air bubbles 88, which emerge through the outlet openings 76.
  • the air bubbles become contaminants, in particular sludge, from the bottom area of the invention Device agitated and conveyed upwards to the weir flow.
  • Fig. 15 purely as an alternative to the line 73, a line 75.
  • the line 75 can be coupled to the treatment container 4 in such a way that portions of the treatment substance can be removed from the treatment container 4.
  • the treatment substance portions removed by means of the line 75 are then preferably fed to the swirling device 70 by means of a pump device (not shown).
  • the swirling fluid delivered by the swirling device 70 in this case to the treatment substance provided in the treatment container for swirling the treatment substance provided in the treatment container is thus the portion of the treatment substance discharged via line 75.
  • the line 75 can be connected, for example, to the treatment substance removal means or the opening or mouth or suction opening 85.
  • Fig. 16 shows a purely exemplary and schematic structure of a treatment system 100.
  • one or more of the treatment devices 1, as is known, for example, from the preceding figures, can be provided.
  • one or more surface treatment device (s) 94 can be treated further for the surface treatment of the treatment object 2 previously treated by the treatment device 1. Further treatment of at least a part of the surface of the treatment object 2 and particularly preferably at least a large part of the surface of the treatment object 2 and most preferably of substantially or exactly the entire surface of the treatment object 2 is preferably carried out.
  • the surface treatment device 94 is preferred for coating the treatment object 2 educated.
  • the surface treatment device 94 preferably applies or generates one or more material layers on the surface of the treatment object 2.
  • a powder coating and / or painting of the treatment object is preferably effected by the surface treatment device 94.
  • a 2K HS single-layer lacquer can preferably be used as the lacquer.
  • a drying device for drying the treatment object 2 is provided or formed in the transport path 96 between the treatment device 1 and the surface treatment device 94. Additionally or alternatively, it is conceivable that a drying device (not shown) is provided or designed after the surface treatment device 94 or as part of the surface treatment device. It is also conceivable that the step Powder coating is to be understood as the application of a powder coating. If a powder coating is applied, a primer is preferably produced or applied to the treatment object by the surface treatment device 94 or by an upstream device, in particular by means of cathodic dip coating, before the powder coating is applied.
  • FIG. 17a shows the surface of a normal steel after a 600 hour salt spray test.
  • the degree of blistering according to ISO 4628-2 is m0g0, the infiltration at the scoring is 18mm, the degree of rusting according to ISO 4628-03 is Ri 0 and the delamination at the scoring is 21 mm.
  • Fig. 17b shows the surface of a normal phosphated steel after a 600 hour salt spray test.
  • the degree of blistering according to ISO 4628-2 is m0g0
  • the infiltration at the scoring is 17mm
  • the degree of rusting according to ISO 4628-03 is Ri 0
  • the delamination on the scoring is 25-28 mm.
  • Fig. 17c shows the surface of a steel pretreated according to the present invention after a 1000 hour salt spray test.
  • the degree of blistering according to ISO 4628-2 is m0g0
  • the infiltration at the scratch is 6mm
  • the degree of rust according to ISO 4628-03 is Ri 0
  • the delamination at the scratch is 4-6 mm.
  • FIG. 18a-c show schematically differently treated surfaces, each of which was exposed to a salt spray test for 1008 hours.
  • the according Fig. 18a The metal body shown was phosphated using a method known from the prior art, then a cathodic dip coating was applied and finally the metal body was coated with a powder coating. The infiltration at the Ritz is 2mm. There is no blistering or rust formation on the surface. The delamination on the scoring, checked with fabric adhesive tape, is 3mm.
  • the according Fig. 18b The metal body shown was pretreated with the treatment device according to the invention, then a cathodic dip coating was applied and finally the metal body was coated with a powder coating. The infiltration at the Ritz is 1mm. There is no blistering or rust formation on the surface.
  • the delamination on the Ritz, checked with fabric adhesive tape, is 2mm.
  • the according Fig. 18c The metal body shown was pretreated with the treatment device according to the invention and then the metal body was coated with a powder coating.
  • the infiltration at the Ritz is 5mm. There is no blistering or rust formation on the surface.
  • the delamination on the scoring, checked with fabric adhesive tape, is 5mm.
  • FIG. 17a-c and 18a-c use reference numerals I1 and I2 to indicate two different indicator locations that were analyzed to determine the specified measured values.
  • Reference list 1 Treatment device 48 Demineralized water treatment device 2nd Subject of treatment 49 Control device 4th Treatment tank 50 Further pressure band filter device 6 Treatment substance 51 Storage tank 8th Temperature control device 52 Side channel blower 10th Pumping device 53 First sloping part of the soil 12th Wall 54 Second sloping part of the soil 14 Collecting room 55 Third inclined part of the soil 16 Conveyor line 56 Fourth sloping soil 18th Filter device 57 Outlet 19th Further filter device 58 Connecting pipe 20th Weir flow 60 Main suction line 22 Main recording room 61 Bag with nozzles 24th First side recording room 62 First part of the gutter 26 Second side recording room 63 Second part of the gutter 27 Grid 70 Swirling device 28 jet 72 Provisioning facility 39 Wire coil 73 management 40 Treatment device for treating wire 74 Fluid line element 41 Delivery point 76 Outlet openings 42 Treatment bath 78 Valve device 43

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Claims (6)

  1. Dispositif de traitement (1) pour le traitement d'un objet de traitement métallique (2), dans lequel le traitement comporte au moins le décapage et la phosphatation de l'objet de traitement (2),
    dans lequel le dispositif de traitement (1) comporte au moins les dispositifs cités par la suite :
    un récipient de traitement (4) pour la réception de l'objet de traitement (2) et pour la réception d'une substance de traitement pouvant s'écouler (6),
    un dispositif de pompage (10) pour la circulation d'au moins une part de la substance de traitement (6),
    dans lequel au moins une partie de l'objet de traitement (2), en particulier l'objet de traitement entier (2), peut être contournée par la substance de traitement (6),
    caractérisé en ce que
    un dispositif de tourbillon (70) est prévu pour faire tourbillonner des impuretés, en particulier des particules solides, se déposant dans la zone de fond du dispositif de traitement,
    dans lequel le dispositif de tourbillon (70) présente au moins un dispositif de fourniture (72) et un élément de conduite de fluide (74) avec une pluralité d'ouvertures de sortie (76) pour amener un fluide de tourbillon à la substance de traitement (6),
    dans lequel le fluide de tourbillon peut être amené par le dispositif de fourniture (72) à l'élément de conduite de fluide (74) à une pression de plus de 2 bar, dans lequel l'élément de conduite de fluide (74) réalise plusieurs sections de conduite (80) pouvant être découplées les unes des autres au moyen de dispositifs de soupape (78), dans lequel au moins la plupart des sections de conduite (80) sont agencées dans la zone du fond (82) du récipient de traitement (4),
    dans lequel le fluide de tourbillon est de l'air.
  2. Dispositif de traitement selon la revendication 1,
    caractérisé en ce que
    les sections de conduite sont réalisées par des tubes (80), en particulier avec un diamètre entre 2 mm et 12 mm et de préférence dans un diamètre entre 3 mm et 9 mm et de manière particulièrement préférée dans un diamètre entre 4 mm et 6 mm,
    dans lequel les tubes (80) sont couplés au fond (82) du récipient de traitement (4) ou sont agencés dessus,
    dans lequel les tubes (80) sont reliés entre eux au moyen d'au moins une unité de distribution (84), et
    dans lequel chaque dispositif de soupape (78) est réalisé en tant que soupape d'arrêt, en particulier en tant que soupape d'arrêt magnétique et
    le dispositif de fourniture (72) est réalisé pour la fourniture d'un gaz, en particulier de l'air, se trouvant sous au moins 2 bar de pression.
  3. Dispositif de traitement (1) selon l'une des revendications précédentes,
    caractérisé en ce que
    un dispositif de filtration (18) est prévu pour la filtration de la substance de traitement (6), dans lequel par la filtration des impuretés qui se sont accumulées dans la substance de traitement (6) sont retirées de la substance de traitement (6), et
    un dispositif de commande est prévu pour le fonctionnement du dispositif de filtration et/ou du dispositif de tourbillon,
    dans lequel le dispositif de filtration et le dispositif de tourbillon peuvent fonctionner au moins temporairement en fonction l'un de l'autre.
  4. Dispositif de traitement (1) selon l'une des revendications précédentes 1 à 3,
    caractérisé en ce que
    le fonctionnement du dispositif de tourbillon comporte au moins temporairement la fourniture du fluide et la commande du dispositif de soupape,
    dans lequel les dispositifs de soupape peuvent être commandés selon des déroulements prédéterminés, en particulier dans des intervalles de temps programmés.
  5. Dispositif de traitement (1) selon l'une des revendications précédentes,
    caractérisé en ce que
    le récipient de traitement (4) est séparé par une paroi (12) d'un espace de collecte (14) pour la collecte de la substance de traitement (6) s'écoulant par-dessus la paroi (12), dans lequel la substance de traitement (6) collectée dans l'espace de collecte (14) peut être refoulée dans le récipient de traitement (4) au moyen d'une conduite de refoulement (16),
    dans lequel le dispositif de pompage (10) et le dispositif de filtration (18) forment un constituant de la conduite de refoulement (16) et la substance de traitement refoulée (6) est refoulée par le dispositif de pompage (10) au travers du dispositif de filtration (18),
    dans lequel la conduite de refoulement (16) est conçue de telle manière qu'un écoulement de déversoir (20) puisse être généré par la substance de traitement (6) refoulée dans le récipient de traitement (4) pour l'évacuation d'une partie de la substance de traitement (6) hors du récipient de traitement (4) et dans l'espace de collecte (14).
  6. Dispositif de traitement (1) selon l'une des revendications précédentes,
    caractérisé en ce que
    le récipient de traitement (4) présente un espace de réception principal (22) dans lequel l'objet de traitement (2) peut être introduit et au moins un premier espace de réception secondaire (24), dans lequel l'espace de réception principal (22) et le premier espace de réception secondaire (24) sont reliés entre eux de telle manière que la substance de traitement (6) puisse s'écouler d'une part hors de l'espace de réception principal (22) dans le premier espace de réception secondaire (24) et d'autre part hors du premier espace de réception secondaire (24) dans l'espace de réception principal (22), dans lequel l'espace de réception principal (22) et le premier espace de réception secondaire (24) sont délimités l'un de l'autre de telle manière que la pénétration de l'objet de traitement (2) dans le premier espace de réception secondaire (24) soit empêchée au moins partiellement et de préférence complètement et
    dans lequel l'espace de réception principal (22) est aussi couplé à un second espace de réception secondaire (26),
    dans lequel le premier espace de réception secondaire (24) est un espace de réception tampon réalisé en dessous de l'espace de réception principal (22) pour la réception d'une quantité déterminée de substance de traitement (6), et
    dans lequel le second espace de réception secondaire (26) est un espace de régulation de température réalisé de préférence latéralement par rapport à l'espace de réception principal (22), dans lequel le dispositif de régulation de température (8) est agencé au moins partiellement dans le second espace de réception secondaire (26).
EP16793848.9A 2015-11-05 2016-11-07 Dispositif de traitement pour le décapage et la phosphatation de pièces métalliques Active EP3371342B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015014323.9A DE102015014323A1 (de) 2015-11-05 2015-11-05 Behandlungsvorrichtung zum Beizen und Phosphatieren von Metallteilen und Behandlungsverfahren sowie Behandlungsanlage zum Beschichten der Metallteile
PCT/EP2016/076869 WO2017077122A1 (fr) 2015-11-05 2016-11-07 Dispositif de traitement pour le décapage et la phosphatation de pièces métalliques, et procédé et installation de traitement pour revêtir des pièces métalliques

Publications (2)

Publication Number Publication Date
EP3371342A1 EP3371342A1 (fr) 2018-09-12
EP3371342B1 true EP3371342B1 (fr) 2020-03-18

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Country Status (5)

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EP (1) EP3371342B1 (fr)
CN (1) CN108291309A (fr)
DE (1) DE102015014323A1 (fr)
HK (1) HK1257124A1 (fr)
WO (1) WO2017077122A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3407513A1 (de) * 1984-03-01 1985-09-05 Gerhard Collardin GmbH, 5000 Köln Verfahren zur zink-calcium-phosphatierung von metalloberflaechen bei niedriger behandlungstemperatur
DE10345801A1 (de) * 2003-09-30 2005-04-14 Basf Ag Verfahren zum Beizen metallischer Oberflächen unter Verwendung von alkoxylierten Alkinolen
CN103422081A (zh) * 2012-05-15 2013-12-04 中国石油集团渤海石油装备制造有限公司 钻铤中温磷化工艺及其磷化设备
DE102013019269A1 (de) * 2013-11-15 2015-06-03 Weylchem Switzerland Ag Geschirrspülmittel sowie dessen Verwendung
KR20160149226A (ko) * 2014-04-30 2016-12-27 리오 페어발퉁스 아게 금속 부품을 산세하고 인산염 처리하기 위한 처리 장치 및 처리 방법

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
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Also Published As

Publication number Publication date
CN108291309A (zh) 2018-07-17
HK1257124A1 (zh) 2019-10-11
WO2017077122A1 (fr) 2017-05-11
EP3371342A1 (fr) 2018-09-12
DE102015014323A1 (de) 2017-05-11

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