EP3371340B1 - Dispositif de traitement utilisant un dispositif de tourbillonnement pour effectuer le décapage et la phosphatation de pièces métalliques - Google Patents

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

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Publication number
EP3371340B1
EP3371340B1 EP16793846.3A EP16793846A EP3371340B1 EP 3371340 B1 EP3371340 B1 EP 3371340B1 EP 16793846 A EP16793846 A EP 16793846A EP 3371340 B1 EP3371340 B1 EP 3371340B1
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EP
European Patent Office
Prior art keywords
treatment
substance
collecting chamber
treatment substance
swirling
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EP16793846.3A
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German (de)
English (en)
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EP3371340A1 (fr
Inventor
Joachim SCHÖNBERG
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Retomax AG
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Retomax AG
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    • 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 according to claim 1 relates to a treatment device for the single-stage treatment of a metallic treatment article, the treatment comprising at least the pickling and the phosphating of the 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.
  • the above object is achieved according to the invention by a treatment apparatus for single-stage treatment of a metallic treatment article according to claim 1, wherein the treatment comprises at least pickling and phosphating the subject of the treatment.
  • 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, is flowed around by the treatment substance, wherein the treatment substance is a phosphorus or phosphate-containing solution, in particular phosphoric acid in which the solution containing phosphorus or phosphate comprises, on the one hand, water and, on the other hand, a reaction substance, the reaction substance consisting of phosphorus or a phosphate and an additional treatment effect improving substance, and a fluidizing device for stirring up impurities depositing in the treatment substance, in particular solid particles, wherein the swirl means comprises at least one fluid supply means and a
  • 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 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 then discharged or extracted by supplying portions of the treatment substance to the filter device from the receiving space.
  • 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 arranged in the region of the bottom of the treatment vessel.
  • 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 preferably by at least 10 ° and preferably at least 20 ° and more preferably at least 45 ° or at least 60 ° or at least 90 ° or at least 120 ° or at least 150 ° or up to 180 ° are oriented differently 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.
  • the line sections are formed by tubes, for example 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, wherein the tubes are coupled to the bottom of the treatment container or are arranged thereon, wherein the tubes are interconnected by means of at least one distributor unit, and wherein each valve device is preferably designed as a shut-off valve, in particular as Absperrmagnetventil.
  • the outlet openings can be 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 substantially 3 mm , on.
  • the fluid supply device is designed to provide a gas which is at least 200 kPa (2 bar) in 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 because 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 the invention, wherein filtering removes impurities from the treatment substance that have accumulated in the treatment substance.
  • a control device is provided for operating the filter device and the swirling device, wherein the filter device and the swirling device can be operated at least temporarily as a function of one another. This is advantageous because the impurities interact very efficiently with the interaction of the swirling device with the filter device the treatment substance can be removed.
  • 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 the fluidizing fluid is supplied to the treatment substance through all the outlet openings which are fluidically connected to the opened valve devices for a preferably predetermined period of time. 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 hereby may be e.g. Have data regarding the proportion of impurities in the bottom region 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 proportion of phosphorus or phosphate in the reaction substance may be 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, since the treatment substance is incombustible, by the use of the treatment substance no MAK values (maximum workplace concentration) are exceeded and no corrosive vapors are effected, whereby no suction is 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 preferable temperature of the treating substance is preferably higher than 0 ° 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 with a 20 ° C treatment lasting 2 hours or with a 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 consists of ceremonitkalktem water and the reaction substance, wherein 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
  • deionized water is 1: 6 if the reaction substance is in a solid state or the proportion of reaction substance to the proportion of deionized water is preferably 1: 5 if the reaction substance is in a liquid state.
  • reaction substance preferably has no fractions of fluorine, chlorine, bromine, iodine, lead, mercury and selenium, so that the device according to the invention works without harmful or environmentally harmful substances or substances.
  • the pumping device is designed as a circulating pump and 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 tank can be made in any size.
  • the treatment vessel 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 chloride
  • a filter device for filtering the treatment substance, wherein filtering removes impurities from the treatment substance which accumulate in the treatment substance. This is advantageous because the treatment substance can be continuously or temporarily cleaned or treated in the treatment tank.
  • the supply device is according to a further preferred embodiment of the present invention for removing portions of the treatment substance from the Treatment tank formed, wherein the supply means a treatment substance removal means, in particular a line mouth, connects to the swirling device and the treatment substance from the supply device pressurized, in particular more than 200 kPa (2 bar), the swirling device for introduction into the remaining in the treatment tank treatment substance portion can be fed.
  • the treatment substance extraction means may be formed as an orifice or opening or drain or suction opening.
  • the treatment substance removal means is formed in the region of the bottom, in particular in the bottom, of the treatment container.
  • the treatment substance removal means is 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 fluidically.
  • the plurality of openings or mouths or suction openings are preferably coupled to each other functionally, in particular fluidically.
  • 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 treatment container is, wherein a temperature control device is at least partially disposed in the Temper michsraum.
  • the first receiving space or the buffer space can serve, for example, to hold 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, for example, parts or particles which 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 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 any damage being formed in one or more receiving areas arranged devices, such as the temperature control, by a collision with the subject of the treatment is possible.
  • the treatment container is separated by a wall from a collecting space for collecting treatment substance flowing over the wall, wherein the treatment substance collected in the collecting space can be returned to the treatment container by means of the pumping device via a delivery line.
  • the pumping device and the filter device according to the present invention form a component of the delivery line and the conveyed treatment substance is conveyed through the filter device by means of the pumping device.
  • the pumping device causes the delivery of the treatment substance through the filter device and at least partially causes a circulation of the treatment substance in the treatment container.
  • the delivery line is designed in such a way that through 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 collection space can be produced.
  • This is advantageous because by means of the pumping device, the conveying of the treatment substance through the filter device at least partially a circulation of the treatment substance in the treatment vessel and the creation of a Wehrströmung is effected.
  • a Dosing means for adjusting the composition of the treatment substance may be provided, wherein the treatment substance consists of a mixture of several components.
  • the metering device with one or more sensor devices
  • the sensor devices preferably allow monitoring or analysis of the composition of the treatment substance and / or monitoring the volume or the remaining amount or the filling level of existing in the treatment container treatment substance 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 treatment substance-forming components, in particular of deionized water, the reaction substance and the treatment effect improving substance can take place.
  • the addition of the components forming the treatment substance preferably takes place 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 can be between 1: 4 and 1: 7, wherein the proportion of reaction substance to the proportion of deionized water is preferably 1: 6, when the reaction substance in a solid state with the VE Water is mixed or wherein the proportion of 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 can also be replaced in a fixed ratio of several substances.
  • the preferred substance / s is / are here thus flowable, in particular liquid, or solid reaction substance (s), preferably with a diluting substance, such as, for example, water, in particular demineralized or distilled water or fully demineralized water (DI water), is / are mixed.
  • a diluting substance such as, for example, water, in particular demineralized or distilled water or fully demineralized water (DI water
  • Reaction substance to the diluent in particular deionized 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
  • an admixture of a mixture or solution of one or more additional substances, in particular one or more liquids, in particular deionized water, and / or one or more preferably soluble additives to the treatment substance It is also conceivable for an additional substance, 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 a solution containing phosphorus or phosphate, 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, 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 1, the density of the reaction substance is preferably 1.8 at a temperature of 20 ° C. and the flash point of the reaction substance is preferably 280 ° C. or preferably higher than 280 ° C.
  • the treatment substance preferably comprises VE water and is preferred in addition to the deionized water, a reaction substance in an amount of 1-10%, especially 3-5%, of the amount of deionized water.
  • the exposure time ie, the time that the subject of treatment 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 may have an additive substance for pickling degreasing or an additive substance may be added to a treatment substance, the etching agent additive preferably comprising an aqueous solution of nonionic biodegradable surfactants and inhibitors, in particular but-2-yne-1,4-diol, and wherein the Beizentfetterzusatz with a volume of 0.5% to 7% of the volume of the phosphorus- or phosphate-containing solution or the treatment substance is added.
  • the etching agent additive preferably comprising an aqueous solution of nonionic biodegradable surfactants and inhibitors, in particular but-2-yne-1,4-diol, and wherein the Beizentfetterzusatz with a volume of 0.5% to 7% of the volume of the phosphorus- or phosphate-containing solution or the treatment substance is added.
  • the treatment substance may comprise an additional substance for defoaming, the defoamer additive preferably having triisobutyl phosphate and the defoamer additive of the treatment substance having a volume of from 0.01% to 5%, in particular from 0.1% to 1%, of the volume of the phosphor 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 treated with the pickle fat additive phosphorus or phosphate-containing solution or the treatment substance is added.
  • the defoamer additive preferably having triisobutyl phosphate
  • the defoamer additive of the treatment substance having a volume of from 0.01% to 5%, in particular from 0.1% to 1%, of the volume of the phosphor 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 treated with the pickle fat
  • a control device may be provided which controls the tempering device in such a way that the treatment substance acts on a Target temperature or a target temperature profile is tempered and / or wherein the control means controls the pumping means such that the treatment substance is conveyed with a target flow rate or a Zielströmungs characterizing, and / or the control means controls the filter means 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 has one or more oil separation system (s), ultrasound system (s), high-pressure system (s), rotating and lifting device (s) and / or full-descaling water supply system (s).
  • oil separation system s
  • ultrasound system s
  • high-pressure system s
  • rotating and lifting device s
  • full-descaling water supply system s
  • a degreasing bath in particular for degreasing the treatment articles with unusually high fat content, can be provided and, in particular, connected upstream of the treatment tank.
  • the treatment substance in the degreasing bath can preferably be heated to a temperature higher than the possible operating temperature or treatment 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.
  • 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.
  • a treatment method for at least pickling and phosphating a, in particular metallic, treatment object preferably comprises the steps of providing a treatment container for receiving at least one subject of treatment and receiving a flowable treatment substance, wherein no further treatment vessel is used for degreasing and phosphating, introducing the treatment substance into the treatment vessel and introducing the subject of treatment into the treatment substance at least partially filled treatment container for bringing the treatment object with the treatment substance, wherein the contact between the treatment substance and the treatment article is at least a pickling and phosphating the treatment object is effected, wherein the treatment substance is a phosphorus or phosphate-containing solution, in particular phosphoric acid, the removal of the A treatment article from the treatment tank, the fluidization of impurities transferred to the treatment substance by the treatment article by imparting a fluid to the treatment substance through the fluidization device for fluidizing the impurities, supplying the treatment substance containing the fluidized impurities to a filter device for filtering out the impurities from the treatment substance portions supplied to the
  • 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 described is advantageous because a closed circuit is provided which does not require a rinsing process and thus does not require conveying the article into a sink. Furthermore, the method is highly advantageous because, in comparison with mechanical treatment methods in particular, it enables 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 MAK values (Maximum Workplace Concentration) and no corrosive vapors are caused, thus requiring no suction.
  • MAK values Maximum Workplace Concentration
  • a control device for operating the filter device and the swirling 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 articles to be treated may remain in the treatment container 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, together with the treatment substance.
  • the described method particularly preferably results in the treatment article being exposed to the treatment substance such that degreasing and / or descaling and / or preserving and / or decalcifying of the treatment article takes place in addition to the pickling and phosphating.
  • a pore-free protective layer can be 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, can by the treatment method, 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 about 5 Min to 60Min, in particular from about 20 minutes, in an oven at 70 ° C to 150 ° C, especially at about or exactly 100 ° C, on the material surface of the treatment object (in particular of iron or mild steel) arise.
  • the resulting protective layer is preferably between 2 microns and 10 .mu.m, in particular more than or exactly 3 .mu.m, 4 .mu.m or 5 .mu.m, thick.
  • 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 has prefers no or essentially no pores and is thus particularly preferably pore-free.
  • the protective layer is elastic and particularly preferably adapts to temperature fluctuations of -60 ° C. to 750 ° C. and more preferably from -40 ° C. to 680 ° C., without flaking off, the protective layer preferably having a high flexural capability, in particular from to to 180 ° or more than 180 ° (eg iron bars).
  • the protective layer can hereby be an excellent basis for a further treatment, in particular a color treatment, which can follow the process, for example.
  • the protective layer preferably reacts neutrally and does not enter into any chemical connections with hydraulic fluids. Further extremely important advantages of the method are that no rusting of the treatment articles takes place through the protective layer and, during 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 takes place.
  • the treatment method can likewise comprise 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 a part of the treatment substance, wherein at least part of the treatment object is flowed around by the treatment substance.
  • a tempering of the treatment substance vorhaltbaren in the treatment container can be carried out by means of a temperature control device, wherein the temperature of the treatment substance is set defined by means of the temperature control, and wherein by means of a pumping means, a flow for moving at least a portion of the treatment substance, wherein at least a portion of the treatment object of the Treatment substance is flowed around.
  • the treatment substance can be filtered, wherein filtering removes impurities from the treatment substance which have accumulated in the treatment substance.
  • the treatment container is according to the present invention by a wall of a collecting space for collecting separated by a wall flowing treatment substance, wherein the treatment substance collected in the collecting space is conveyed back by means of a conveyor, in particular by means of the pumping device, via a feed line into the treatment vessel.
  • the pump device and the filter device form part of the delivery line and the delivered 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 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.
  • the composition of the treatment substance can be controlled, wherein the treatment substance consists of a mixture of several components.
  • the treatment substance may be an additive for pickling degreasing and / or an additive substance for defoaming
  • the pickling agent additive preferably comprises an aqueous solution of non-ionic biodegradable surfactants and inhibitors, in particular but-2-yn-1,4-diol, and wherein the Beizentfetterzusatz with a volume of 0.5% to 7% of the volume of the phosphorus- or phosphate-containing solution or the treatment substance is added and wherein the defoamer additive preferably triisobutyl phosphate and wherein the defoamer addition of the treatment substance with a volume of 0.1% to 1% the volume of phosphorus or phosphate Solution or with a volume of 0.1% to 1% of the volume of the treated with the pickling fuming additive phosphorus or phosphate-containing solution or the treatment substance is added.
  • the tempering device can be controlled such that the treatment substance is heated to a target temperature or a target temperature profile and / or by means of the control device, the pumping device can be controlled so that the treatment substance is promoted with a target flow rate or a target flow characteristic.
  • the filter device is controlled such that the filtered portion of the treatment substance has a target purity.
  • the metering device can be controlled such that a target composition of the treatment substance is adjustable.
  • the swirling device for example 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 present in the treatment substance, in particular settled impurities, in particular solid particles, such. Mud, in particular comprising metal particles, in particular rust particles, takes place.
  • 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.
  • a pumping device 10 is provided for circulating the treatment substance 6 and / or for providing a weir flow 20 and / or for the return delivery of treatment substance 6 discharged 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. By created in the treatment tank 4 flow treatment liquid 6 exits from the treatment tank 4 via the wall 12 and thus enters the collecting space 14. However, it is also conceivable that the treatment substance or liquid 6 experiences a displacement such that a part of the treatment substance 6 exits the treatment container 4 via the wall 12 by introducing the treatment object 2 into the treatment space 4.
  • 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 of the treatment substance 6 is arranged.
  • the pumping device 10 or a further pumping device is arranged or formed in the course of the delivery line 16.
  • 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 off Fig.1 known representation, wherein the treatment object 2 is arranged in accordance with this illustration in the treatment tank 4 and thereby is 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 Drahtcoil treatment.
  • Treatment device 1 shown 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 point 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 bath 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 are on a removal point 44 for removal can be arranged.
  • 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, in particular 8 pieces on.
  • the metering device 47 is preferably automated and particularly 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 according to the invention 1.
  • the treatment device 1 is preferably designed L-shaped, ie, it comprises a treatment tank 4, wherein the treatment tank 4, a first interior portion, which extends Favor perpendicular to a second interior portion has.
  • 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 eg bent 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 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 by means of nozzles 28a, 28b and 29a, 29b, 29c (see. Fig. 5 ) causes, from which the pumped by means of the pumping device 10 treatment substance is pumped into the treatment chamber.
  • 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.
  • Reference numeral 60 denotes a Hauptabsaug effet, by means of the outlets 57a-57g (see. Fig. 7 ) Treatment substance discharged from the treatment room, in particular aspirated, is.
  • 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 according to the invention 1.
  • the nozzles 29a-29c and the 3x3 nozzle arrangement is preferably housed in a pocket 61 in a wall of the treatment container 4, preferably the Nutz operation not to disturb or not to interfere.
  • the nozzles 28a-28b are also housed in a pocket in another wall of the treatment tank 4, preferably not to disturb the useful surface or not to affect.
  • 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 respectively arranged so as to form a linear contact area with each other in the area of a low point regarded 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 oriented with an inclination of 2 ° to 25 ° and more preferably with an inclination of 6 ° to 15 ° and most preferably 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 may have 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 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 resulting from the mutually inclined bottom portions 53, 54 and 55, 56 of the treatment vessel 4 resulting first portion of a channel 62 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 than 50 mm and especially preferred more than 100 mm apart, the grid is particularly preferably at most 500 mm from the bottom of the treatment container is spaced.
  • 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.
  • Fig. 8 shows the Hauptabsaug réelle 60 and a portion of the connecting pipes 58a-58g, through which the outlets 57a-57g are connected to the Hauptabsaugtechnisch 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 device according to the invention 1. This representation can be found in particular connected to the outlets and the Hauptabsaug effet connecting pipes 58a-58g.
  • FIGS. 4 to 9 shown treatment apparatus 1 according to the invention.
  • Fig. 13 shows a schematic representation of an example of a swirler 70 in a plan view.
  • 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 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 conduit section 80a-80e has a plurality of outlet openings 76 through which a fluidizing fluid, which can be supplied to the fluid conduit element 74 via a fluid supply device 72, can emerge from the fluid conduit 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 To the manifold 84 is a Control device 86 connected.
  • control device 86 preferably initiates the opening and / or closing of one, several, several, or all 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 which 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.
  • Fig. 14 is that out Fig. 13 known and described purely by way of example swirling device 70 disposed in a treatment tank 4 and thereby exemplifies the inventive device.
  • 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 drain outlet 85, through which the treatment substance from the main receiving space can be discharged, in particular derivable or pumpable.
  • the drain outlet 85 is preferably connected to the filter device 18 in such a way that the treatment substance discharged via the drainage orifice 85 is fed to the filter device or can be supplied.
  • the weir wall 12 delimits the collecting space 14 into which the impurities swirled up by the swirling device 70 can be guided, with the treatment substance passing over the weir wall 12, over the drain 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 alternatively conceivable is that only the distributor unit with a valve device, in particular a shut-off valve, such as Magnetabsperrventil, is provided so that in the bath targeted individual sections or the entire area can be acted upon. 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.
  • the fluidizing fluid under pressure, in particular compressed air, embedded in the bath or the treatment substance and thus the still stored on the ground dirt whirled, so that he in can distribute the liquid or the treatment substance.
  • the admission, in particular injection, of the fluidizing fluid, in particular of the compressed air, is controlled by a control device 86 and can take place uniformly or pulsatingly, permanently or at programmed time intervals or as a function of 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 schematically shows the ascending fluidizing fluid, in particular the rising air bubbles 88.
  • the treatment substance is swirled.
  • 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.
  • a line 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 line 75 may in this case be connected, for example, to the treatment substance removal means or the opening or mouth or suction opening 85.

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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)

Claims (6)

  1. Dispositif de traitement (1) servant à traiter en une étape un objet de traitement (2) métallique, dans lequel le traitement comprend au moins le décapage et la phosphatation de l'objet de traitement (2),
    dans lequel le dispositif de traitement (1) comprend au moins les systèmes mentionnés ci-après :
    un contenant de traitement (4) servant à recevoir l'objet de traitement (2) et servant à recevoir une substance de traitement (6) pouvant s'écouler,
    un système de pompage (10) servant à faire circuler au moins une proportion de la substance de traitement (6),
    dans lequel au moins une partie de l'objet de traitement (2), en particulier la totalité de l'objet de traitement (2), peut être entourée d'un flux de la substance de traitement (6),
    un système de tourbillonnement (70) servant à faire tourbillonner des impuretés, en particulier des particules de matière solide, se déposant dans la substance de traitement,
    dans lequel le système de tourbillonnement (70) présente au moins un système de préparation de fluide (72) et un élément d'acheminement de fluide (74) avec une pluralité d'ouvertures de sortie (76) servant à amener un fluide de tourbillonnement, en particulier un gaz, à la substance de traitement (6),
    dans lequel le fluide de tourbillonnement peut être amené par le système de préparation de fluide (72) à l'élément d'acheminement de fluide (74) à une surpression, en particulier supérieure à 2 bar,
    dans lequel un système filtrant est prévu pour filtrer la substance de traitement, dans lequel des impuretés, qui se sont accumulées dans la substance de traitement, sont éliminées de la substance de traitement par le filtrage, dans lequel un système de commande est prévu pour faire fonctionner le système filtrant et le système de tourbillonnement,
    dans lequel le système filtrant et le système de tourbillonnement peuvent fonctionner en dépendance l'un de l'autre au moins par intermittence,
    dans lequel le contenant de traitement (4) est séparé par une paroi (12) d'un espace de collecte (14) servant à collecter une 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 à nouveau dans le contenant de traitement (4) au moyen d'un conduit de refoulement (16),
    dans lequel le système de pompage (10) et le système filtrant (18) forment un élément constitutif du conduit de refoulement (16) et la substance de traitement (6) refoulée est refoulée par le système de pompage (10) à travers le système filtrant (18) de part en part,
    dans lequel le conduit de refoulement (16) est configuré de telle manière que la substance de traitement (6) refoulée à nouveau dans le contenant de traitement (4) permet de générer un écoulement de barrage (20) servant à dévier une partie de la substance de traitement (6) hors du contenant de traitement (4) et à l'intérieur de l'espace de collecte (14) .
  2. Dispositif de traitement selon la revendication 1,
    caractérisé en ce que
    l'élément d'acheminement de fluide (74) réalise plusieurs sections d'acheminement (80) pouvant être découplées les unes des autres au moyen de systèmes de vanne (78), dans lequel au moins la plupart des sections d'acheminement (80) sont disposées dans la zone du fond (82) du contenant de traitement (4).
  3. Dispositif de traitement selon la revendication 2,
    caractérisé en ce que
    les sections d'acheminement (80) sont réalisées par des tuyaux (80), en particulier avec un diamètre entre 2 mm et 12 mm et de manière préférée d'un diamètre entre 3 mm et 9 mm et de manière particulièrement préférée d'un diamètre entre 4 mm et 6 mm,
    dans lequel les tuyaux (80) sont couplés au fond (82) du récipient de traitement (4) ou sont disposés au niveau de celui-ci,
    dans lequel les tuyaux (80) sont reliés les uns aux autres au moyen d'au moins une unité de distribution (84), et
    dans lequel chaque système de vanne (78) est réalisé sous la forme d'une vanne de fermeture, en particulier sous la forme d'une électrovanne de fermeture.
  4. Dispositif de traitement (1) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le fonctionnement du système de tourbillonnement comprend au moins par intermittence la préparation du fluide de tourbillonnement et le pilotage du système de vanne,
    dans lequel les systèmes de vanne peuvent être pilotés selon des allures prédéfinies, en particulier à des intervalles de temps programmés.
  5. Dispositif de traitement (1) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le contenant de traitement (4) présente de telle manière 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 l'un à l'autre de telle manière que la substance de traitement (6) peut 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 peut s'écouler 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 l'intrusion de l'objet de traitement (2) dans le premier espace de réception secondaire (24) est empêchée au moins en partie et de manière préférée en totalité, et
    dans lequel l'espace de réception principal (22) est couplé de la même manière à un deuxième espace de réception secondaire (26),
    dans lequel le premier espace de réception secondaire (24) est un espace de réception tampon réalisé sous l'espace de réception principal (22), servant à recevoir une quantité définie de substance de traitement (6), et
    dans lequel le deuxième espace de réception secondaire (26) est un espace de thermorégulation réalisé de manière préférée latéralement de l'espace de réception principal (22), dans lequel un système de thermorégulation (8) est disposé au moins en partie dans le deuxième espace de réception secondaire (26).
  6. Dispositif de traitement (1) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le système de préparation est réalisé pour prélever des proportions de la substance de départ hors du contenant de traitement (4), dans lequel le système de préparation relie un moyen de prélèvement de substance de traitement, en particulier une embouchure de conduit, au système de tourbillonnement et la substance de traitement soumise par le système de préparation à l'action d'une pression, en particulier supérieure à 2 bar, peut être amenée au système de tourbillonnement (70) destiné à être introduit dans la proportion de substance de traitement restant dans le contenant de traitement (4).
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 EP3371340A1 (fr) 2018-09-12
EP3371340B1 true EP3371340B1 (fr) 2019-10-23

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EP (1) EP3371340B1 (fr)
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DE (1) DE102015014311A1 (fr)
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WO (1) WO2017077119A1 (fr)

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DE10345801A1 (de) * 2003-09-30 2005-04-14 Basf Ag Verfahren zum Beizen metallischer Oberflächen unter Verwendung von alkoxylierten Alkinolen
CN101612494A (zh) * 2008-06-29 2009-12-30 马斯特泰克株式会社 用于金属加工流体供应装置的过滤设备
CN101492817B (zh) * 2009-02-27 2011-05-11 章�宁 一种防盗门磷化自动化工艺方法及设备
US20130161260A1 (en) * 2011-12-08 2013-06-27 Avantech Incorporated Fluid Treatment System
CN203096187U (zh) * 2013-01-22 2013-07-31 东方电气集团东方汽轮机有限公司 一种管道内表面酸洗磷化装置
CN103243338A (zh) * 2013-05-15 2013-08-14 山东威斯特车业有限公司 一种电动车架酸洗磷化方法
DE102013019269A1 (de) * 2013-11-15 2015-06-03 Weylchem Switzerland Ag Geschirrspülmittel sowie dessen Verwendung
CN203741415U (zh) * 2013-12-27 2014-07-30 山东滨州渤海活塞股份有限公司 一种用于活塞自动磷化的设备

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HK1257357A1 (zh) 2019-10-18
DE102015014311A1 (de) 2017-05-11
CN108291308A (zh) 2018-07-17
WO2017077119A1 (fr) 2017-05-11
EP3371340A1 (fr) 2018-09-12

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