EP3371340A1 - Dispositif de traitement et procédé de traitement utilisant un dispositif de tourbillonnement pour effectuer le décapage et la phosphatation de pièces métalliques - Google Patents

Dispositif de traitement et procédé de traitement utilisant un dispositif de tourbillonnement pour effectuer le décapage et la phosphatation de pièces métalliques

Info

Publication number
EP3371340A1
EP3371340A1 EP16793846.3A EP16793846A EP3371340A1 EP 3371340 A1 EP3371340 A1 EP 3371340A1 EP 16793846 A EP16793846 A EP 16793846A EP 3371340 A1 EP3371340 A1 EP 3371340A1
Authority
EP
European Patent Office
Prior art keywords
treatment
substance
treatment substance
container
phosphate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16793846.3A
Other languages
German (de)
English (en)
Other versions
EP3371340B1 (fr
Inventor
Joachim SCHÖNBERG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Retomax AG
Original Assignee
Retomax AG
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 Retomax AG filed Critical Retomax AG
Publication of EP3371340A1 publication Critical patent/EP3371340A1/fr
Application granted granted Critical
Publication of EP3371340B1 publication Critical patent/EP3371340B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical 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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical 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
    • C23C22/05—Chemical 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
    • C23C22/06—Chemical 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
    • C23C22/07—Chemical 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
    • C23C22/08—Orthophosphates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
    • C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G3/00—Apparatus for cleaning or pickling metallic material

Definitions

  • the present invention relates according to claim 1 to a treatment apparatus for single-stage treatment of objects and according to claim 12 to a treatment method for at least pickling and phosphating a metallic treatment article.
  • Previous treatment systems for phosphating objects require a variety of steps, in particular 7 steps, and for this purpose have a variety of different baths.
  • the object is first inserted into a first bath, in which a first liquid is provided for degreasing the article. After degreasing, the article must be pumped out of the first bath and into a second bath. In the second bath, a rinsing liquid is provided for rinsing the article. After rinsing, the article is conveyed to a third bath.
  • the third bath is filled with a hydrochloric acid / sulfuric acid mixture.
  • the article After the hydrochloric acid / sulfuric acid treatment, the article is successively conveyed into two further baths each filled with a rinsing liquid for rinsing the article. Furthermore, the article is conveyed after the last rinse in a bath for passivation. After passivation, the article is phosphated and then conveyed to another location for drying.
  • the highly toxic and environmentally harmful chemicals in the degreasing baths and in the treatment baths must be completely changed after about 6 to 8 weeks of production time, because the chemicals are worn out after this time and sludge must be removed from the baths. This means a shutdown of the system and high replacement and disposal costs.
  • Hydrogen embrittlement usually occurs through the penetration and incorporation of hydrogen into a metal grid and can result in material fatigue. Hydrogen embrittlement occurs when the metal surface, either through hydrogen corrosion or another chemical reaction in metal processing involving hydrogen, produces atomic hydrogen, which binds to the material more quickly than it does at the material surface diffusible H 2 molecules Strukturgt together. Part of the hydrogen is stored in the metal grid or accumulates at defects or at the grain boundary. Depending on the load of the respective object, eg by the initiation of tensile and / or load voltages, there is a risk of material failure.
  • the possible useful life of the substance used in the treatment process should be extended.
  • a treatment device for the one-step treatment of a metallic treatment article wherein the treatment comprises at least the pickling and the phosphating of the treatment article.
  • the treatment device according to the invention in particular a bath installation, preferably comprises a treatment container for receiving the treatment object and for receiving a flowable treatment substance, and a pumping device for exchanging at least a portion of the treatment substance, wherein at least a 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 on the one hand from water and the other from a Reaction substance consists of the reaction substance of phosphorus or a phosphate and an additional treatment effect improving substance, and a swirling device for stirring up in the treatment substance depositing impurities, in particular solid particles, wherein the swirling device at least one fluid supply device and
  • the treatment substance does not have to be exchanged and disposed of every 6-8 weeks, since the treatment device according to the invention provides a system structure in which the used chemistry is constantly cleaned.
  • the treatment device according to the invention provides a system structure in which the used chemistry is constantly cleaned.
  • the required number of changes of the treatment substance per year to less than 4 changes, especially to 2 or to less than 2 changes, to 1 or to less than 1 change, is reducible.
  • the treatment substance is replaced only when there is a predetermined concentration of dissolved iron in the treatment substance, wherein an exchange preferably takes place only at a dissolved iron concentration of more than 2%.
  • contaminants or impurities are prevented from depositing by the solution according to the invention and / or are removed from accumulations formed by deposits in connection with the pumping device and possibly the filter device.
  • the accumulations can be separated again by the swirling device, whereby the impurities can again be kept as suspended matter in the treatment substance.
  • the impurities can then be discharged or extracted from the receiving space by the introduction of portions of the treatment substance to the filter device.
  • the fluid conduit element forms a plurality of conduit sections which can be decoupled from one another at least functionally or fluidically by means of valve devices, wherein at least the majority of the conduit sections are in the region of the bottom of the treatment vessel T EP2016 / 076865 are arranged.
  • any portion of the treatment container which is arranged or formed closer to the bottom than to the opening formed on the upper side of the treatment container is to be regarded as the region of the bottom.
  • the fluid conduit element is formed as a component of the soil or in the soil and thus may be formed in sections or completely below the surface of the soil oriented towards the receiving space.
  • the fluid conduit element is at least partially formed less than 50cm, preferably less than 30cm and more preferably less than 10cm spaced from the bottom of the receiving space.
  • the outlet openings or individual outlet openings or the plurality of outlet openings or a minority of the outlet openings are preferably oriented downward, ie oriented in the direction of the floor or oriented to the side, ie in the direction of a wall or side wall of the receiving space, at a fluid line element arranged above the floor, or upwards, ie in the direction of the introduction 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.
  • each outlet section or pipe or on individual line sections or pipes first outlet openings are provided, which are oriented in a first direction, and second outlet openings are provided which are oriented in a second direction, wherein the first direction and the second Direction are preferably oriented at least 10 "and preferably at least 20 ° and particularly preferably at least 45 ° or at least 60 ° or at least 90 ° or at least 120 ° or at least 150 ° or up to 180 ° different from each other third outlet openings are provided, which are oriented to the first outlet openings at an angle which is different from the angle between the first outlet openings and the second outlet openings, analogously, this may be true for fourth outlet openings and / or fifth outlet openings etc.
  • This embodiment is advantageous since the introduction of the vortex ungsfluids or the fluid, in particular air, can be directed in such a way that the turbulence generated by the fluidizing fluid dissolve the deposits effectively.
  • the line sections are formed by tubes, in particular made of stainless steel or alternatively copper, aluminum, iron and / or plastic, in particular with a tube diameter between 2mm and 12mm and preferably in a tube diameter between 3mm and 9mm and especially preferably in a pipe diameter between 4mm and 6mm, the pipes being coupled to the bottom of the treatment tank or are arranged thereon, wherein the tubes are connected to one another by means of at least one distributor unit, and wherein each valve device is preferably designed as a shut-off valve, in particular as a shut-off solenoid valve.
  • the outlet openings are preferably designed as holes, in particular holes, 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 substantially 3 mm, on.
  • the fluid supply device is designed to provide a gas which is at least 2 bar pressure, in particular air.
  • the air preferably consists of ambient air from the environment 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 moves out of the movement substance itself. As it traverses the treatment substance, the air causes a local displacement of the treatment substance, causing it to move, which could result in turbulence.
  • a filter device for filtering the treatment substance is provided according to a further preferred embodiment of the present invention, wherein filtering removes impurities from the treatment substance which have accumulated in the treatment substance.
  • a control device for operating the filter device and the swirling device is preferably provided.
  • the filter device and the swirling device can be operated 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 impurities to be very efficiently removed from the treatment substance.
  • the operation of the swirling device comprises, at least at times, the provision of the swirling fluid or fluid and the actuation of the valve device, wherein the valve devices can be actuated according to predetermined progressions, in particular at programmed time intervals. It is thus possible for individual, several, the plurality or all valve devices of the line element or individual line sections to be switched in such a way that they are fluidly connected through all with the open valve devices 16 076865 connected outlet openings for a preferred predetermined period of time, the fluidizing fluid is supplied to the treatment substance. However, it is also conceivable here for one or more valve devices to be connected in succession, in particular to be pulsed.
  • the individual valve devices are particularly preferably controlled, however, by means of a predetermined program and / or a preferably adjustable interval circuit and / or as a function of status data of the treatment substance detected by means of sensor device.
  • the swirling device is particularly preferably activated and / or deactivated as a result of the sensor data.
  • the sensor data may have, for example, data relating to the proportion of impurities in the bottom region of the device and / or in one or individual regions 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 proportion of the phosphorus or the phosphate in the reaction substance is at least 95% (volume percent).
  • the reaction substance particularly preferably contains no fractions of hydrochloric acid and sulfuric acid. This is advantageous because a very simple treatment of treatment objects is possible by the present invention. Essentially, the articles of treatment need only be dipped in the treatment substance, the treatment substance must act and dry after removal of the article of treatment from the bath.
  • a protective layer is formed after drying on the treatment objects by the high-purity phosphorus or the high-purity phosphate, so that they are protected over a longer period, in particular several weeks before further Ausbefall, this being without the required according to the prior art Passivation and subsequent phosphating takes place, and wherein in particular the resulting protective layer is far superior to the phosphating according to the prior art.
  • This solution is also advantageous because the treatment substance is incombustible, the use of the treatment substance does not exceed the MAK values (maximum workplace concentration) and no corrosive vapors are caused, which means that no extraction is required.
  • the treatment effect enhancement substance (s) used provides significant protection of the material and does not compromise weldability.
  • Yet another advantage is the versatility of the present invention. It can be used eg for pretreatment and post-treatment in hardening shops or it can be used to remove the oxide layer on aluminum. Furthermore, they can be avoided during the galvanic reworking of castings efflorescence. The savings on putty in the removal of casting skin is therefore considerable. Furthermore, eg hydraulic pipes and pipelines can be pickled directly on construction sites in a single operation, without a rinsing and neutralization would be required.
  • the treatment device according to the invention preferably also preferably effects the degreasing and / or derusting and / or descaling and / or preserving and / or descaling of the treatment article.
  • 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 of alloys, polymer parts, such as plastic parts or rubber parts, etc., especially vehicle frames, pipes, machine parts, turbocharger parts, housing, car 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 of alloys
  • polymer parts such as plastic parts or rubber parts, etc.
  • the percentages with regard to the invention apply as volume percent.
  • the percentages and temperatures in ° C with respect to the invention refer to the ambient pressure or normal pressure, if nothing different arises from the subject of the invention, and further, the information in ° C accordingly for Kelvin be valid.
  • those skilled in the art are not going to further explain the physical units of the invention with respect to the overall disclosure of the invention, but if one physical parameter should be modified, it will be apparent to those skilled in the art that the resulting changes in the other physical Adjust sizes accordingly, without departing from the scope of the invention.
  • a temperature control for controlling the temperature in the action container is provided vorhaltbaren treatment substance, wherein by means of the temperature control device, the temperature of the treatment substance is defined adjustable.
  • the preferable temperature of the treating substance is preferably higher than 0 e C, especially higher than or equal to 5 ° C, higher than or equal to 10 ° C, higher than or equal to 15 ° C, higher than or equal to 17 ° C, higher than or equal to 20 ° C, higher or equal to 25 ° C, higher than or equal to 30 ° C, higher than or equal to 35 ° C, higher than or equal to 37 ° C, higher than or equal to 40 ° C, preferably between 20 ° C and 60 ° C and most preferably between 30 ° and 50 ° C.
  • the temperature of the treatment substance is a heating of the treatment substance, but it is also conceivable that the temperature represents a cooling.
  • the treatment substance can be temporarily heated and temporarily cooled by the tempering device.
  • the tempering device is preferably designed as an electrical heating device, electrical cooling device and / or as a heat exchanger system.
  • the work flow can be controlled.
  • the acceleration factor can be 20: 20Cx6. This means that the subject of the treatment can be made stainless at 20 ° C treatment lasting 2 hours or by treatment at 40 ° C lasting 20 minutes.
  • a particularly preferred operating temperature range is 35 ° C to 45 ° C, this temperature range is advantageous because a suction is not necessary because no corrosive - or harmful to health vapors. However, it is conceivable that a suction is provided when e.g. the working space is extremely low or if the work space is not to be ventilated.
  • the phosphorus-containing and phosphate-containing solution preferably consists of fully descaled water and the reaction substance, the proportion of reaction substance to the proportion of deionized water being between 1: 4 and 1: 7, the proportion of reaction substance to the proportion of deionized water being preferred 1: 6, when the reaction substance is in a solid state or wherein the proportion of reaction substance to the proportion of deionized water is preferably 1: 5, when the reaction substance is in a liquid state.
  • reaction substance further no shares of fluorine, chlorine, bromine, iodine, lead, mercury and Selenium, so that the device of the invention works without harmful or environmentally harmful substances or substances.
  • the pumping device is preferably designed as a circulating pump and preferably causes a circulation of the treatment substance within the treatment container.
  • a pump device is provided for generating a weir flow.
  • One or more nozzles are preferably coupled to the pumping device, through which the treatment substance is dispensed, in particular, into treatment containers, in particular for bath circulation.
  • the treatment container is preferably executable in any size.
  • the treatment tank has an inside, i. on the side in contact with the treatment substance, a material or a mixture of materials which is not attacked by the treatment substance.
  • Preferred materials here include, among others, stainless steel, GVP, PVC.
  • GVP stainless steel
  • PVC polyvinyl styrene
  • a filter device for filtering the treatment substance wherein filtering removes impurities from the treatment substance which accumulate in the treatment substance.
  • This embodiment is advantageous because the treatment substance can be continuously or temporarily cleaned or treated in the treatment tank.
  • the supply device is designed to remove portions of the treatment substance from the treatment container, wherein the supply device connects a treatment substance removal means, in particular a conduit mouth, with the fluidization device and pressurizes the treatment substance by the provision device, in particular by more than 2 bar in that the swirling device can be supplied for introduction into the treatment substance portion remaining in the treatment container.
  • a treatment substance removal means in particular a conduit mouth
  • the fluidization device pressurizes the treatment substance by the provision device, in particular by more than 2 bar in that the swirling device can be supplied for introduction into the treatment substance portion remaining in the treatment container.
  • Treatment substance removal means formed as a mouth or opening or drain or suction opening. This is particularly preferred
  • Treatment substance removal means formed in the region of the bottom, in particular in the bottom of the treatment tank. This is preferred
  • Treatment substance removal means formed by a plurality of openings or mouths or suction openings, wherein the plurality of openings or mouths or suction openings are preferably coupled to each other functionally, in particular fluidly.
  • the plurality of openings or mouths or suction openings are preferably coupled to each other functionally, in particular fluidly.
  • the plurality of openings or mouths or suction openings are preferably coupled to each other functionally, in particular fluidly.
  • the treatment container is coupled to at least two receiving spaces, wherein a first receiving space is a buffer receiving space preferably formed below the processing container for receiving a certain amount of the treatment substance, and wherein a second receiving space is a temperature control space preferably formed laterally of the processing container is, wherein the temperature control device is at least partially disposed in the Temper michsraum.
  • the first recording space or buffer space may be e.g. serve to provide a desired volume of the treatment substance.
  • the first receiving space or the buffer space is used for receiving or depositing sediments.
  • the sediments may be e.g. Parts or particles that detach from the treatment objects during the treatment.
  • the tempering space is preferably arranged laterally next to the treatment tank, as this can provide a very good accessibility to the tempering device. Furthermore, however, it is alternatively also conceivable that the tempering device in the first receiving space or in the buffer space, i. below the treatment container, is formed or arranged. This embodiment is advantageous in that the individual portions of the treatment substance can reach different functional areas or receiving spaces and the main receiving space, without damage to devices formed or arranged in one or more receiving areas, such as the tempering device, being possible by collision with the subject of treatment ,
  • the treatment container is separated according to a still further preferred embodiment of the present invention by a wall of a collecting space for collecting over the wall flowing treatment substance, wherein the treatment substance collected in the collecting space by means of a conveyor, in particular by means of the pumping device, via a delivery line in the treatment container is insects.
  • a conveyor in particular by means of the pumping device, via a delivery line in the treatment container is insects.
  • This embodiment is advantageous since the particles accumulating on the surface of the treatment substance and detached from the treatment object and / or foam forming on the surface of the treatment substance and / or other material concentrations can be diverted out of the treatment tank and can preferably be fed to the filter device.
  • the pump device and the filter device form a constituent part of the delivery line, and the conveyed treatment substance is preferably conveyed through the filter device by means of or by means of the pumping device.
  • the pumping means causes the delivery of the treatment substance through the device and F at least partially a circulation of the treatment substance in the treatment vessel.
  • the delivery line or a delivery line is designed in such a way that a weir flow for discharging part of the treatment substance out of the treatment container and into the collection space can preferably be generated by the treatment substance conveyed back into the treatment container.
  • This embodiment is advantageous because by means of preferably a pumping device, the delivery of the treatment substance through the filter device, at least partially a circulation of the treatment substance in the treatment container and the creation of a Wehrströmung is effected.
  • a metering device for adjusting the composition of the treatment substance, wherein the treatment substance consists of a mixture of several components.
  • the metering device is indirectly coupled to one or more sensor devices directly or 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 quantity or the filling level in the treatment container existing treatment substance allows or allow.
  • the metering device compensates losses by adding the appropriate amount of treatment substance lost, in particular evaporation and / or immersion losses are bleached out.
  • the addition of the components which form the treatment substance, in particular of deionized water, the reaction substance and the treatment effect improving substance, is preferably carried out by the metering device.
  • the addition of the components forming the treatment substance is preferably carried out in a fixed ratio, in particular in the ratio in which the individual components are also provided in the treatment container or in some other fixed ratio.
  • the treatment substance to be added is already added in the form of a finished mixture or finished solution.
  • the sensor device may preferably be used as a device for performing a titration, i. be designed for concentration determination.
  • concentration determination i. be designed for concentration determination.
  • 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 deionized water is between 1: 4 and 1: 7, wherein the proportion of reaction substance to the proportion of deionized water is preferably 1: 6, if the reaction substance in a solid state is mixed with the deionized water, or wherein the proportion of the reaction substance to the proportion of deionized water is preferably 1: 5, when the reaction substance is mixed in a liquid state with the deionized water.
  • the losses are also replaced in a fixed ratio of several substances.
  • the preferred substance (s) here is thus flowable, in particular liquid, or solid reaction substance (s), which are preferably mixed with a diluent substance, e.g. Water, especially desalted or distilled water or Vollentkalktem water (deionized water), is / are mixed.
  • a diluent substance e.g. Water, especially desalted or distilled water or Vollentkalktem water (deionized water
  • Preferred mixing ratios between the reaction substance and the diluting substance, in particular demineralized water are further hereby e.g. 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
  • additional substances in particular for pickling degreasing and / or defoaming, to be added to the treatment substance.
  • the additional substance with about 0.5% to 10%, in particular with 1% to 5%, of the volume of the treatment substance of the treatment substance is buried.
  • demineralized water is preferred in this case, as this substantially or consistent surface quality is obtained on the treatment objects.
  • pickling remover is advantageous because by adding it to the treating substance, contaminants such as light fatty deposits, debris, oil, coal and graphite can be removed in the same operation.
  • the treatment substance is according to a particularly preferred embodiment of the present invention, a phosphorus or phosphate-containing solution, in particular phosphoric acid, wherein the phosphorus content or the phosphate content of the solution is preferably highly pure, i. has a purity of more than 95%, in particular more than 96%, 97%, 98%, 99% and preferably more than 99.5%. Due to the purity of the phosphorus content or the phosphate content of the treatment substance according to the invention, it has almost no impurities, so that a corresponding protective layer is formed on the treatment object.
  • the pH of the reaction substance is preferably substantially at 1, the density of the reaction substance is at a temperature of 20 ° C preferably at 1, 8 and the flash point of the reaction substance is preferably 280 ° C or preferably higher than 280 e C.
  • the treatment substance preferably comprises deionized water and, in addition to the demineralized water, it prefers a reaction substance in an amount of 1-10%, especially 3-5%, of the amount of VE -Wassers.
  • the exposure time ie the time that the treatment object in the treatment container is exposed to the treatment substance, is preferred 0.5 min. To 20 min. And more preferably 1 min. To 10 min.
  • the reaction substance here preferably consists of phosphoric acid and inhibitors.
  • the treatment substance has an additive substance for pickling degreasing or such an additive substance is added to a treatment substance
  • the etching agent additive preferably comprises an aqueous solution of nonionic biodegradable surfactants and inhibitors, in particular but-2-in-1 , 4-diol, and wherein the pickle 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 has an additional substance for defoaming, the defoamer additive preferably having triisobutyl phosphate and the defoamer addition of the treatment substance having a volume of from 0.01% to 5%, in particular with a volume of 0.1%. to 1%, the volume of the 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 offset with the pickle degreaser phosphorus - or phosphate-containing solution or the treatment substance is added.
  • the defoamer additive preferably having triisobutyl phosphate
  • the defoamer addition of the treatment substance having a volume of from 0.01% to 5%, in particular with a volume of 0.1%. to 1%, the volume of the 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%
  • a control device controls the temperature control device such that the treatment substance is heated to a target temperature or a target temperature profile and / or wherein the control device controls the pumping device such that the treatment substance with a target flow rate or a target flow characteristic is promoted, 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 metering device such that a target composition of the treatment substance is adjustable.
  • the treatment device one or more ölabscheide system / s, ultrasonic system / s, high-pressure system / s, turning and lifting device / s and / or Vollentkalktes-water supply system / e has.
  • a degreasing bath in particular for degreasing the articles of treatment with unusually high fat content, may be provided, in particular upstream of the treatment tank.
  • the treatment substance in the degreasing bath may preferably be heated to a temperature higher than the preferable operating temperature of the treatment substance in the treatment tank.
  • the temperature in the degreasing bath is preferably greater than 50.degree. C., in particular greater than 52.degree. C. and particularly preferably greater than or equal to 60.degree.
  • This embodiment is advantageous since only very heavily oiled or greased treatment objects can be introduced into a degreasing bath suitable for degreasing. This has considerable energy advantages, since the temperature of the preferably 50 ° C heated to above degreasing bath preferably does not have to be permanently or only temporarily effected. 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.
  • the invention further relates to a treatment method for at least pickling and phosphating a, in particular metallic, treatment object.
  • the method according to the invention preferably comprises the steps of providing a treatment container for receiving at least one treatment article and receiving a flowable treatment substance, wherein no further treatment container is used for degreasing and phosphating, introducing the treatment substance into the treatment container and introducing the treatment article into the treatment container Treating substance at least partially filled treatment container for bringing the treatment object into contact with the treatment substance, wherein contact between the treatment substance and the treatment object causes at least pickling and phosphating of the treatment object, the treatment substance being a phosphorus- or phosphate-containing solution, in particular phosphoric acid, removing the subject of the treatment from the treatment container, the sac of the subject of treatment f the impurities imparted to the treating substance by means of a fluidizing means, wherein fluid is supplied to the treating substance by the fluidizing means to supply the impurities, supplying the treating substance containing the fluidized impurities to a filtering
  • the solution containing phosphorus or phosphate preferably consists first of water, in particular fully descaled water, and on the other hand of a reaction substance, wherein the reaction substance consists of phosphorus or a phosphate and an additional treatment effect improving substance, wherein the proportion of phosphorus or phosphate on the reaction substance is at least 95%, wherein the reaction substance in particular has no proportions of hydrochloric acid and sulfuric acid.
  • the treatment method according to the invention is advantageous because a closed circuit is created which does not require a rinsing process and thus does not require conveying the article into a sink. Furthermore, the method according to the invention is highly advantageous since, in particular in comparison with mechanical treatment methods, it enables a very thorough, gentle and rapid treatment of the subject of the treatment. This solution is also advantageous because the treatment substance is incombustible, the use of the treatment substance does not exceed the MAK values (maximum workplace concentration) and no corrosive vapors are caused, which means that no extraction is required.
  • MAK values maximum workplace concentration
  • a control device for operating the filter device and / or the swirling device is provided.
  • An operation of the filter device preferably takes place at least temporarily as a function of an operation of the swirling device or wherein an operation of the swirling device takes place at least temporarily as a function of an operation of the filter device.
  • the operation of the swirling device preferably at least temporarily comprises the provision of the fluid and the activation of the valve device.
  • the valve devices are controlled 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 articles remain 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, together with the treatment substance in the treatment container.
  • the process according to the invention particularly preferably has the effect that the treatment object is exposed to the treatment substance such that degreasing and / or descaling and / or preserving and / or decalcifying of the treatment object takes place in addition to the pickling and phosphating.
  • a non-porous protective layer is produced on the surface of the treatment article by means of the treatment substance, in particular by means of the reaction substance, with prevention of hydrogen embrittlement, the protective layer having a thickness of at least 2 ⁇ m and preferably of at least 3 ⁇ m.
  • the nonporous protective layer protects the subject of the treatment from oxygen and water, so that rusting is effectively prevented.
  • the protective layer in particular a phosphate layer, in particular an iron phosphate layer, is formed by the treatment method according to the invention, in particular after a drying time of 3 hours to 48 hours, in particular from 6 hours to
  • the resulting protective layer is preferably between 2 pm and
  • the protective layer particularly preferably has a thickness of from 2 ⁇ m to 10 ⁇ m, and preferably from 3 ⁇ m to 8 ⁇ m, and particularly preferably from 4 ⁇ m to 6 ⁇ m.
  • the protective layer preferably has no or essentially no pores and is therefore particularly preferably pore-free.
  • the protective layer is elastic and particularly preferably adapts
  • the protective layer preferably a high
  • Bending ability in particular of up to 180 ° or more than 180 ° (for example
  • the protective layer can be an excellent basis for another
  • Treatment in particular be a color treatment, which can be followed, for example, to the inventive method.
  • the protective layer preferably reacts neutral and does not chemically bond with hydraulic fluids. Further extremely important advantages of the method according to the invention are that no rusting of the treatment objects takes place through the protective layer and, during pickling, material removal of preferably less than 10 g / m 2, in particular less than 5 g / m 2, and particularly preferably less than or equal to 2.24 g / sqm is done.
  • the treatment method according to the invention preferably also has the step of tempering the treatment substance which can be pre-stored in the treatment container and / or the step of generating a flow of at least part of the treatment substance, wherein at least a part of the treatment object is flowed around by the treatment substance.
  • a tempering of the treatment substance vorhaltbaren in the treatment container by means of a temperature control device, wherein the temperature of the treatment substance is set defined by means of the temperature control device, and wherein by means of a pumping means, a flow for moving at least a portion of the treatment substance at least a part of the treatment object is flowed around by the treatment substance.
  • the treatment substance is filtered according to a further preferred embodiment of the present invention, wherein filtering removes impurities from the treatment substance which have accumulated in the treatment substance.
  • the treatment container is separated according to a further preferred embodiment of the present invention by a wall of a collecting space for collecting treatment substance flowing over a wall, wherein the treatment substance collected in the collecting space by means of a conveyor, in particular by means of the pumping device, fed back via a feed line in the treatment vessel becomes.
  • the pump device and the filter device form a Component of the delivery line and the conveyed treatment substance is conveyed by the pumping device through the filter device.
  • the delivery line is designed in such a way that through the treatment substance conveyed back into the treatment container, a weir flow is generated for discharging a part of the treatment substance out of the treatment container and into the collection space.
  • the composition of the treatment substance is controlled by means of a metering device, wherein the treatment substance consists of a mixture of several components.
  • the treatment substance is an additive for pickling degreasing and / or an additive substance for defoaming
  • the pickling agent additive preferably an aqueous solution of non-ionic biodegradable surfactants and inhibitors, in particular but-2-in-1, 4 and the pickle degreaser additive is added at a volume of 0.5% to 7% of the volume of the phosphorus- or phosphate-containing solution or treatment substance
  • the defoamer additive preferably comprises triisobutyl phosphate
  • the defoamer addition of the treatment substance has a volume of 0, 1% to 1% of the volume of the phosphorus- or phosphate-containing solution or with a volume of 0.1% to 1% of the volume of the treated with the pickling fat additive phosphorus or phosphate-containing solution or the treatment substance is added.
  • the temperature control device is controlled by means of a control device such that the treatment substance is heated to a target temperature or a target temperature profile and / or the pump device is controlled by the control device in such a way that the treatment substance is conveyed with a target flow velocity or a target flow characteristic is and / or by means of the control device, the filter device is controlled such that the filtered portion of the treatment substance has a target purity, and / or by means of the control device is the Controlled dosing device such that a target composition of the treatment substance is adjustable and / or by means of the control device, the swirling device, in particular the fluid supply device and / or the valve devices, in particular the fluid line element and / or the fluid supply device, controlled such that a turbulence or Aufwirbelung the in the treatment substance present, in particular settled, impurities, in particular solid particles, such as mud, in particular comprising metal particles, in particular rust particles, takes place.
  • a control device such that the treatment substance is heated to a target temperature or a target
  • the use of the words "substantially” preferably defines a deviation in the range of 1% -30%, in particular of 1% -20%, in particular of 1% -10, in all cases in which these words are used in the context of the present invention %, in particular from 1% -5%, in particular from 1% -2%, of the definition that would be given without the use of these words.
  • FIG. 1 shows a first illustration of a treatment device according to the invention in a passive state
  • FIG. 2 shows a second illustration of a treatment device according to the invention in an active state
  • Fig. 3 is a perspective view of another invention
  • Fig. 4 is a perspective view of yet another invention
  • FIG. 5 shows a further perspective illustration of the treatment device according to the invention shown in FIG. 4;
  • FIG. 6 shows a detailed perspective view of part of the treatment device according to the invention shown in FIGS. 4 and 5;
  • FIG. 7 shows a first plan view of the treatment device according to the invention shown in FIGS. 4 to 6;
  • FIGS. 4 to 6 shows a second plan view of the treatment device according to the invention shown in FIGS. 4 to 6;
  • FIGS. 4 to 8 are perspective views of substantially the underside of the treatment device according to the invention shown in FIGS. 4 to 8;
  • FIGS. 4 to 9 shows a first schematic side view of the treatment device according to the invention shown in FIGS. 4 to 9;
  • FIGS. 4 to 9 shows a second schematic side view of the treatment device according to the invention shown in FIGS. 4 to 9;
  • Fig. 11 is a scanning electron micrograph of a steel sheet which has been treated by the method of the invention.
  • Fig. 13 shows an example of a swirling device, as according to the present
  • Invention is preferably provided in a treatment container according to one of the figures 1 to 10,
  • FIG. 14 the swirling device known from FIG. 13, is arranged purely by way of example in a treatment container, and
  • Fig. 15 is a side view of a device according to the invention with a vortex preferably arranged therein.
  • 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, preserving and de-rusting, one or more articles to be treated 2.
  • the article 2 to be treated is preferably introduced from above into a treatment container 4 of the treatment device 1.
  • the treatment container 4 is preferably at least partially and particularly preferably completely filled with a treatment substance 6.
  • a tempering device 8 for tempering, in particular for heating, the treatment substance 6 is preferably provided.
  • 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 reclaiming treatment substance 6 that has emerged from the treatment container 4 back into the treatment container 4.
  • the treatment container 6 is separated by a wall 12 of a collecting space 14. Due to the flow created in the treatment tank 4, treatment liquid 6 exits the treatment tank 4 via the wall 12 and thus enters the catchment space 14. However, it is also conceivable that the treatment substance or liquid 6 can be introduced into the treatment area 2 by introducing the treatment object 2 Treatment chamber 4 undergoes such a displacement that a 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 discharged from the treatment tank 4 is conveyed back into the treatment tank 4. In the region of the delivery line 16 or in the delivery line 16 or as part of the delivery line 16, a filter device 18 for filtering or processing the treatment substance 6 is preferably arranged.
  • the pumping device 10 or a further pumping device (not shown) in the course of the delivery line 16 arranged or formed.
  • a pumping filter device can be provided which either replaces a pumping 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 in this case, for example, by grids 27, in particular in each case a grid, separated from each other.
  • the grille 27 prevents the object of treatment 2 from entering one of the secondary 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 the representation known from FIG. 1, the treatment object 2 being arranged in the treatment container 4 in accordance with this illustration and thus 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 in FIG. 3 has, by way of example, a receiving bag 40, which preferably carries a plurality of wire coils 39 to be treated.
  • the receiving bag 40 is arranged on a delivery parts 41, wherein preferably a plurality of receiving bag 40 and several delivery points 41 are provided.
  • the treatment device 1 preferably has a plurality of, in particular 2, 3, 4, 5, 6, 7, 8, or more, treatment baths 42.
  • a treatment 42 are preferably, in particular at the same time, a plurality, in particular 2, 3, 4, 5. 6, 7, 8, 9 or more, wire coils 39 at the same time introduced for treatment.
  • the reference numeral 43 denotes a preferably purely optional device, namely a fixing 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 at the same time into a fixing bath 43. Furthermore, it is 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 with a transport device 45, in particular a dolly or a rail-guided gantry crane. Furthermore, several devices for supplying, regulating and controlling the treatment device 1 are preferably provided.
  • a pressure belt filter device 46 for example, a pressure belt filter device 46, a metering device 47, a VE water treatment device 48, a control device 49, a further pressure belt filter device 50, a storage tank for treatment tank 51 and a plurality of side channel compressor 52.
  • the metering device 47 is preferred automated and most preferably has a buffer tank with a volume of preferably more than 5m 3 , more 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, i. it comprises a treatment tank 4, wherein the treatment tank 4 has a first interior portion extending perpendicular to a second interior space portion.
  • an interior portion is longer than the other interior portion, which is also conceivable that the interior parts are the same length or are substantially the same length.
  • the illustrated design allows e.g. curved elements, such as pipes.
  • the treatment container 4 preferably has at least or exactly one wall 12, wherein an area into which the treatment objects to be treated are introduced is separated from a collecting space 14 by the wall 12.
  • the collecting space 14 is preferably used for collecting over the wall 12 from the treatment chamber exiting treatment substance.
  • the reference numeral 10 denotes a pumping device, in particular for generating a flow within the treatment substance to be introduced into the treatment space.
  • the reference numeral 18 denotes a filter device 18 for filtering or treating the treatment substance.
  • a movement or flow of the treatment substance is effected by means of nozzles 28a, 28b and 29a, 29b, 29c (see Fig. 5), from which the treatment substance conveyed by means of the pumping device 10 is pumped into the treatment space.
  • the housing 61 surrounds or houses the nozzles 29a-29c.
  • three rows with 2 nozzles 28a, 28b and three rows with three nozzles 29a, 29b, 29c are provided, wherein it is also conceivable that exactly or at least one nozzle 28 and / or 29 is provided.
  • the nozzles 28 are inclined to the nozzles 29 aligned, in particular aligned at right angles.
  • the reference numeral 60 designates a main suction line, by means of which the treatment substance is discharged from the treatment space via outlets 57a-57g (see FIG.
  • the discharged treatment substance is preferably processed by means of the filter device 18 and conveyed by means of the pumping device 10 via the nozzles 28 and 29 back into the treatment space.
  • the treatment apparatus 1 may preferably be dimensioned such that a footprint of 5100 mm ⁇ 3800 mm is required.
  • the treatment device 1 comprises a bath volume of substantially, up to, at least or exactly 14m 3 .
  • the useful 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 accommodated in a pocket 61 in a wall of the treatment container 4. preferably not to disturb the useful area or not to affect.
  • the nozzles 28a-28b are also accommodated in a pocket in another wall of the treatment container 4 in order preferably not to disturb or impair the useful surface.
  • the pockets 61 are preferably provided with a not shown ramming protection to avoid damaging the internals.
  • a further filter device 19 is shown, wherein the further filter device 19 is preferably designed as a coarse filter.
  • the treatment substance to be treated is first aspirated from the treatment container, then fed to the further filter device 19, then passed through the pump 10, then passed through the filter device 18, which may be preferably 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 with respect to the horizontal inclined surface portions 53, 54, 55, 56 has.
  • the surface portions 53-54 and 55-56 are each arranged such that they form a linear contact area with each other in the region of a low point considered with respect to a vertical direction.
  • the contact region is preferably at a level below a contact region between the outer wall of the container extending in the vertical direction and the respective surface portion or bottom portion 53, 54.
  • the surface portions or base 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 with an inclination of 2 ° to 25 ° and more preferably with an inclination of 6 ° to 15 ° and most preferably aligned with an inclination of substantially or exactly 10 ° with respect to the horizontal.
  • the reference numeral 8 denotes a preferably provided temperature control device.
  • the tempering device 8 preferably has 8 electrical heating elements, in particular a 2 KW on.
  • the heating elements are preferably also accommodated in the pocket 61 in the wall in order not to disturb or impair the preferably required effective area.
  • 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 mutually inclined base portions 53, 54 and 55, 56 of the treatment container 4 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 provided for discharging or for aspirating the treatment substance out of the treatment space.
  • at least one outlet 57g for discharging or aspirating the treatment substance out of the collecting space 14 is preferably provided in the collecting space 14.
  • the outlets 57a-57g are preferably in fluid communication with the main suction line 61 via connecting lines.
  • a grating which preferably aligned horizontally or at right angles to the side walls of the treatment container 4 aligned the bottom 53, 54, 55, 56 of the treatment space superimposed, wherein the grate is spaced to the ground, in particular more than 20 mm and preferably more is spaced apart as 50 mm and more preferably more than 100 mm, wherein the grid is particularly preferably spaced at most 500 mm from the bottom of the treatment container.
  • the grille preferably performs the function of spacing a treatment object introduced into the treatment room from the floor of the treatment room, whereby particles detached from the treated treatment objects can accumulate below the treatment object and extraction of these particles is always possible.
  • the main suction line 60 shows the main suction line 60 and a part of the connection pipes 58a-58g through which the outlets 57a-57g are connected to the main suction pipe 60.
  • the total suction line preferably consisting of at least the connection tubes 58a-58g and the main line 60 is preferably designed to be removable. This is particularly advantageous for a cleaning of the individual parts of the Monabsaug Arthur.
  • FIG 9 shows a perspective view of the underside of the treatment apparatus 1 according to the invention. This illustration can be taken in particular from the connection pipes 58a-58g connected to the outlets and the main suction line.
  • FIGS. 10a and 10b show different side views of the treatment device 1 according to the invention shown in FIGS. 4 to 9.
  • Figures 1 1 and 12 each show a steel sheet, which has been treated by the method according to the invention, and thereby results in a closed surface structure consisting of deposited on the steel sheet phosphorus.
  • the scanning electron micrographs have been created by the Fraunhofer Institute with the specifics mentioned in the figures:
  • the swirling device 70 may in this case be formed as a fixed component of a treatment container 4 or be detachably connected to such a treatment container 4.
  • the swirling device 70 preferably comprises a fluid line element 74, which is preferably formed from one or more line sections 80a-80e.
  • the individual line sections 80a-80e can in this case be formed by lines, in particular hoses or pipes.
  • each line section 80a-80e has a multiplicity of outlet openings 76, through which a fluidizing fluid, which can be supplied to the fluid line element 74 via a fluid supply device 72, can exit or escape from the fluid line element 74 again.
  • the individual line sections are particularly preferably connected or coupled to a distributor 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 each arranged in the fluid flow direction of the fluidization element guided by the fluidizing fluid between the distributor device 84 and the first outlet device 76.
  • a plurality of line sections 80a-80e are coupled to a common valve device 78 or a common valve device 78, in particular a shut-off valve, such as a magnetic shut-off valve, is provided for several line sections.
  • a control device 86 and / or pulse generator device 86 is preferably connected to the distributor device 84.
  • the control device 86 in this case preferably causes the opening and / or closing of one, several, plurality, or all of the valve devices 78, in particular shut-off valves 78.
  • the control device 86 preferably has a control valve device through which a fluid communication channel, by means of the control device 86 Verwirbelungsfluid 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 communicating with a fluid supply device 72 communicating.
  • the fluid supply device 72 may also be connected directly to the control device 86 and / or the distributor unit 84.
  • the fluid supply device 72 is preferably a pressure fluid port of a compressed fluid source, such as a compressed gas port of a compressed gas source, in particular a compressed air connection of a compressed air source.
  • a compressed fluid source such as a compressed gas port of a compressed gas source, in particular a compressed air connection of a compressed air source.
  • This may be, for example, a compressor and / or a pressurized storage.
  • the swirling device 70 known from FIG. 13 and described purely by way of example is arranged in a treatment container 4 and thereby exemplarily forms the device according to the invention.
  • the treatment container 4 is bounded in this case in the longitudinal direction on the one hand by the Wehrwandung 12 and on the other hand by the rear wall 92.
  • In the width direction of the treatment vessel is 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 a discharge mouth 85, through which the treatment substance can be discharged from the main receiving space, in particular can be diverted or pumped off.
  • the Abiaufmündung 85 is preferably connected to the filter device 18 such that the discharged via the Abiaufmündung 85 treatment substance is supplied to the filter device or can be fed.
  • the weir wall 12 delimits the collecting space 14 into which the impurities stirred up by the swirling device 70 can be guided, with the treatment substance passing over the weir wall 12, over the discharge outlet 83 to the filter device 18 for filtering.
  • pipes in particular made of stainless steel, with a preferred diameter of between 4 mm and 6 mm, are preferably permanently installed on the tank bottom of the treatment plant. These tubes are preferably combined via a distributor unit.
  • each tube is provided with a shut-off valve, wherein 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. That is, as needed, the fluidizing fluid can be selectively supplied to one or more tubes, whereby special flows or turbulences can be generated in the treatment substance.
  • a shut-off valve such as a magnetic shut-off valve
  • Verwirbelungsfluid under pressure in particular compressed air
  • the admitting, in particular blowing, of Verwirbelungsfluides, in particular the compressed air is preferably controlled by a timer valve and / or a control device 86 and can be uniform or pulsating, permanently or at programmed intervals or in response to detected sensor measurement data.
  • the filter device 18 or the installed filter system preferably runs with and removes the fluidized up dirt from the treatment substance.
  • FIG. 15 shows schematically the ascending fluidizing fluid, in particular the ascending air bubbles 88.
  • the treatment substance is fluidized.
  • impurities, in particular sludge are stirred up with the air bubbles out of the bottom region of the device according to the invention and conveyed upwards to the weir flow.
  • FIG. 15 shows a conduit 75 purely as an alternative to the conduit 73.
  • the conduit 75 may in this case be coupled to the treatment vessel 4 such that portions of the treatment substance can be removed from the treatment vessel 4.
  • the treatment substance fractions removed by means of the line 75 are then preferably supplied to the swirling device 70 by means of a pumping 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 proportion of the treatment substance removed via the line 75.
  • the lead 75 may be e.g. be connected to the treatment substance removal means or the opening or mouth or suction opening 85.
  • the present invention can thus relate to a treatment device 1 for single-stage treatment of a metallic object 2, the treatment comprising at least the pickling and the phosphating of the article 2, wherein the treatment device 1 comprises at least the following devices: a treatment container 4 for receiving the metal object Treatment article 2 and for receiving a flowable treatment substance 6, and a pumping device 10 for exchanging at least a portion of the treatment substance 6, wherein at least a part of the treatment article 2, in particular the entire treatment article 2, is flowed around by the treatment substance 6, wherein the treatment substance 6 a phosphorus or phosphate Solution, in particular phosphoric acid, wherein the phosphorus- or phosphate-containing solution consists firstly of water and on the other hand of a reaction substance, wherein the reaction substance of phosphorus or a phosphate and an additional treatment effect improving substance, wherein the proportion of the phosphorus or the phosphate at the Reaction substance at least 95% vol. is, wherein the reaction substance in particular has no proportions of hydrochloric acid and sulfuric acid.
  • the present invention preferably relates to a treatment device 1 for single-stage treatment of a metallic treatment article 2, wherein the treatment comprises at least the pickling and the phosphating of the treatment article 2, wherein the treatment device 1 comprises at least the following devices: a treatment container 4 for receiving the treatment article 2 and for receiving a flowable treatment substance 6, a pumping device 10 for circulating at least a portion of the treatment substance 6, wherein at least a part of the treatment object 2, in particular the entire treatment object 2, is flowed around by the treatment substance 6, wherein the treatment substance 6 a phosphorus or phosphate-containing solution, in particular phosphoric acid, wherein the phosphorus or phosphate-containing solution consists of a water and on the other hand of a reaction substance, and a swirler 70 z in order to fluidize impurities depositing in the treatment substance, in particular solid particles, wherein the turbulizer 70 has at least one fluid supply device 72 and one fluid line element 74 with a plurality of outlet ports 76 for supplying a fluidizing fluid to the
  • Treatment device 48 VE water treatment device Subject of treatment

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

La présente invention concerne un dispositif de traitement (1) pour traiter en une étape un objet métallique à traiter (2), ledit traitement comportant au moins le décapage et la phosphatation de l'objet à traiter (2). Le dispositif de traitement (1) comporte au moins une cuve de traitement (4) pour recevoir l'objet à traiter (2) et pour recevoir une substance de traitement coulante (6), un dispositif de pompage (10) pour faire circuler au moins une partie de la substance de traitement (6), la substance de traitement (6) circulant sur au moins une partie de l'objet à traiter (2), en particulier sur la totalité de l'objet (2), la substance de traitement (6) étant une solution contenant du phosphate ou du phosphore, en particulier de l'acide phosphorique, la solution contenant du phosphate ou du phosphore étant constituée d'une part d'eau, et d'autre part d'une substance de réaction, et un dispositif de tourbillonnement (70) conçu pour faire tourbillonner des impuretés qui se sont déposées dans la substance de traitement, en particulier des particules solides. Le dispositif de tourbillonnement (70) comporte au moins un dispositif de distribution de fluide (72) et un élément de guidage de fluide (74) présentant une pluralité d'ouvertures de sortie (76) pour acheminer un fluide de tourbillonnement jusqu'à la substance de traitement (6), le fluide de tourbillonnement pouvant être acheminé, par le dispositif de distribution de fluide (72), jusqu'à l'élément de guidage de fluide (74), avec une surpression de préférence supérieure à 2 bars.
EP16793846.3A 2015-11-05 2016-11-07 Dispositif de traitement utilisant un dispositif de tourbillonnement pour effectuer le décapage et la phosphatation de pièces métalliques Not-in-force EP3371340B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015014311.5A DE102015014311A1 (de) 2015-11-05 2015-11-05 Behandlungsvorrichtung und Behandlungsverfahren mit Verwirbelungseinrichtung zum Beizen und Phosphatieren von Metallteilen
PCT/EP2016/076865 WO2017077119A1 (fr) 2015-11-05 2016-11-07 Dispositif de traitement et procédé de traitement utilisant un dispositif de tourbillonnement pour effectuer le décapage et la phosphatation de pièces métalliques

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EP3371340A1 true EP3371340A1 (fr) 2018-09-12
EP3371340B1 EP3371340B1 (fr) 2019-10-23

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EP16793846.3A Not-in-force EP3371340B1 (fr) 2015-11-05 2016-11-07 Dispositif de traitement utilisant un dispositif de tourbillonnement pour effectuer le décapage et la phosphatation de pièces métalliques

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EP (1) EP3371340B1 (fr)
CN (1) CN108291308A (fr)
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WO2017077119A1 (fr) 2017-05-11
EP3371340B1 (fr) 2019-10-23
CN108291308A (zh) 2018-07-17
DE102015014311A1 (de) 2017-05-11
HK1257357A1 (zh) 2019-10-18

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